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dawn-cmake
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Merge remote-tracking branch 'tint/main' into HEAD 

Integrates Tint repo into Dawn

KIs:
- Building docs for Tint is turned off, because it fails due to lack
  of annotations in Dawn source files.
- Dawn CQ needs to be updated to run Tint specific tests
- Significant post-merge cleanup needed

R=bclayton,cwallez
BUG=dawn:1339

Change-Id: I6c9714a0030934edd6c51f3cac4684dcd59d1ea3
This commit is contained in:
Ryan Harrison 2022-04-06 15:37:27 -04:00
parent 04c18267bc 28674d7c50
commit e87ac76f7d
12772 changed files with 839109 additions and 90 deletions
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1
.clang-format
View File

@ -1,3 +1,4 @@
# http://clang.llvm.org/docs/ClangFormatStyleOptions.html
BasedOnStyle: Chromium
Standard: Cpp11

21
.gitignore vendored
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@ -9,12 +9,15 @@
/testing
/third_party/abseil-cpp/
/third_party/angle
/third_party/benchmark
/third_party/binutils
/third_party/catapult
/third_party/clang-format
/third_party/cpplint
/third_party/glfw
/third_party/googletest
/third_party/gpuweb
/third_party/webgpu-cts
/third_party/gpuweb-cts
/third_party/jinja2
/third_party/jsoncpp
/third_party/llvm-build
@ -22,10 +25,11 @@
/third_party/node
/third_party/node-addon-api
/third_party/node-api-headers
/third_party/protobuf
/third_party/swiftshader
/third_party/tint
/third_party/vulkan-deps
/third_party/vulkan_memory_allocator
/third_party/webgpu-cts
/third_party/zlib
/tools/clang
/tools/cmake
@ -33,7 +37,7 @@
/tools/memory
/out
# Modified from https://www.gitignore.io/api/vim,macos,linux,emacs,windows,sublimetext,visualstudio,visualstudiocode
# Modified from https://www.gitignore.io/api/vim,macos,linux,emacs,windows,sublimetext,visualstudio,visualstudiocode,intellij
### Emacs ###
*~
@ -101,8 +105,19 @@ ehthumbs_vista.db
Desktop.ini
$RECYCLE.BIN/
### Intellij ###
.idea
### Dawn node tools binaries
src/dawn/node/tools/bin/
### Cached node transpiled tools
/.node_transpile_work_dir
# Misc inherited from Tint
/test.wgsl
coverage.summary
default.profraw
lcov.info
/cmake-build-*/
/testing

5
AUTHORS
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@ -1,6 +1,7 @@
# This is the list of Dawn authors for copyright purposes.
# This is the list of Dawn & Tint authors for copyright purposes.
#
# This does not necessarily list everyone who has contributed code, since in
# some cases, their employer may be the copyright holder. To see the full list
# of contributors, see the revision history in source control.
Google Inc.
Google LLC
Vasyl Teliman

6
AUTHORS.dawn Normal file
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@ -0,0 +1,6 @@
# This is the list of Dawn authors for copyright purposes.
#
# This does not necessarily list everyone who has contributed code, since in
# some cases, their employer may be the copyright holder. To see the full list
# of contributors, see the revision history in source control.
Google Inc.

8
AUTHORS.tint Normal file
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@ -0,0 +1,8 @@
# This is the list of the Tint authors for copyright purposes.
#
# This does not necessarily list everyone who has contributed code, since in
# some cases, their employer may be the copyright holder. To see the full list
# of contributors, see the revision history in source control.
Google LLC
Vasyl Teliman

8
BUILD.gn
View File

@ -21,9 +21,15 @@ group("all") {
"src/dawn/native:webgpu_dawn",
"src/dawn/tests",
"src/fuzzers/dawn:dawn_fuzzers",
"src/tint/fuzzers",
"src/tint:libtint",
"test/tint:tint_unittests",
]
if (dawn_standalone) {
deps += [ "samples/dawn:samples" ]
deps += [
"samples/dawn:samples",
"src/tint/cmd:tint",
]
}
}

404
CMakeLists.txt
View File

@ -1,4 +1,4 @@
# Copyright 2020 The Dawn Authors
# Copyright 2022 The Dawn & Tint Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
@ -12,7 +12,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.
cmake_minimum_required(VERSION 3.10)
cmake_minimum_required(VERSION 3.10.2)
# When upgrading to CMake 3.11 we can remove DAWN_DUMMY_FILE because source-less add_library
# becomes available.
@ -26,13 +26,18 @@ project(
DESCRIPTION "Dawn, a WebGPU implementation"
LANGUAGES C CXX
)
enable_testing()
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
if(NOT CMAKE_BUILD_TYPE)
message(WARNING "CMAKE_BUILD_TYPE not set, forcing it to Debug")
set(CMAKE_BUILD_TYPE "Debug" CACHE STRING
"Build type (Debug, Release, RelWithDebInfo, MinSizeRel)" FORCE)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR})
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_DEBUG_POSTFIX "")
if ("${CMAKE_BUILD_TYPE}" STREQUAL "")
message(STATUS "No build type selected, default to Debug")
set(CMAKE_BUILD_TYPE "Debug")
endif()
set(DAWN_BUILD_GEN_DIR "${Dawn_BINARY_DIR}/gen")
@ -99,7 +104,7 @@ elseif(UNIX)
endif()
# GLFW is not supported in UWP
if((WIN32 AND NOT WINDOWS_STORE) OR UNIX AND NOT ANDROID)
if ((WIN32 AND NOT WINDOWS_STORE) OR UNIX AND NOT ANDROID)
set(DAWN_SUPPORTS_GLFW_FOR_WINDOWING ON)
endif()
@ -132,7 +137,7 @@ set_if_not_defined(DAWN_GLFW_DIR "${DAWN_THIRD_PARTY_DIR}/glfw" "Directory in wh
set_if_not_defined(DAWN_JINJA2_DIR "${DAWN_THIRD_PARTY_DIR}/jinja2" "Directory in which to find Jinja2")
set_if_not_defined(DAWN_SPIRV_HEADERS_DIR "${DAWN_THIRD_PARTY_DIR}/vulkan-deps/spirv-headers/src" "Directory in which to find SPIRV-Headers")
set_if_not_defined(DAWN_SPIRV_TOOLS_DIR "${DAWN_THIRD_PARTY_DIR}/vulkan-deps/spirv-tools/src" "Directory in which to find SPIRV-Tools")
set_if_not_defined(DAWN_TINT_DIR "${DAWN_THIRD_PARTY_DIR}/tint" "Directory in which to find Tint")
set_if_not_defined(DAWN_TINT_DIR "${Dawn_SOURCE_DIR}" "Directory in which to find Tint")
set_if_not_defined(DAWN_VULKAN_HEADERS_DIR "${DAWN_THIRD_PARTY_DIR}/vulkan-deps/vulkan-headers/src" "Directory in which to find Vulkan-Headers")
# Dependencies for DAWN_BUILD_NODE_BINDINGS
@ -203,11 +208,355 @@ endif()
set(CMAKE_CXX_STANDARD "17")
################################################################################
# Tint
################################################################################
# TINT_IS_SUBPROJECT is 1 if added via add_subdirectory() from another project.
get_directory_property(TINT_IS_SUBPROJECT PARENT_DIRECTORY)
if(TINT_IS_SUBPROJECT)
set(TINT_IS_SUBPROJECT 1)
# If tint is used as a subproject, default to disabling the building of
# documentation and tests. These are unlikely to be desirable, but can be
# enabled.
set(TINT_BUILD_DOCS_DEFAULT OFF)
set(TINT_BUILD_TESTS_DEFAULT OFF)
else()
set(TINT_BUILD_DOCS_DEFAULT ON)
set(TINT_BUILD_TESTS_DEFAULT ON)
endif()
# Forcing building docs off right now, since currently this will try to build docs for both Tint & Dawn, and Dawn isn't annotated yet.
set(TINT_BUILD_DOCS_DEFAULT OFF)
option_if_not_defined(TINT_BUILD_SAMPLES "Build samples" ON)
option_if_not_defined(TINT_BUILD_DOCS "Build documentation" ${TINT_BUILD_DOCS_DEFAULT})
option_if_not_defined(TINT_DOCS_WARN_AS_ERROR "When building documentation, treat warnings as errors" OFF)
option_if_not_defined(TINT_BUILD_SPV_READER "Build the SPIR-V input reader" ON)
option_if_not_defined(TINT_BUILD_WGSL_READER "Build the WGSL input reader" ON)
option_if_not_defined(TINT_BUILD_GLSL_WRITER "Build the GLSL output writer" ON)
option_if_not_defined(TINT_BUILD_HLSL_WRITER "Build the HLSL output writer" ON)
option_if_not_defined(TINT_BUILD_MSL_WRITER "Build the MSL output writer" ON)
option_if_not_defined(TINT_BUILD_SPV_WRITER "Build the SPIR-V output writer" ON)
option_if_not_defined(TINT_BUILD_WGSL_WRITER "Build the WGSL output writer" ON)
option_if_not_defined(TINT_BUILD_FUZZERS "Build fuzzers" OFF)
option_if_not_defined(TINT_BUILD_SPIRV_TOOLS_FUZZER "Build SPIRV-Tools fuzzer" OFF)
option_if_not_defined(TINT_BUILD_AST_FUZZER "Build AST fuzzer" OFF)
option_if_not_defined(TINT_BUILD_REGEX_FUZZER "Build regex fuzzer" OFF)
option_if_not_defined(TINT_BUILD_BENCHMARKS "Build benchmarks" OFF)
option_if_not_defined(TINT_BUILD_TESTS "Build tests" ${TINT_BUILD_TESTS_DEFAULT})
option_if_not_defined(TINT_BUILD_AS_OTHER_OS "Override OS detection to force building of *_other.cc files" OFF)
option_if_not_defined(TINT_BUILD_REMOTE_COMPILE "Build the remote-compile tool for validating shaders on a remote machine" OFF)
set(TINT_LIB_FUZZING_ENGINE_LINK_OPTIONS "" CACHE STRING "Used by OSS-Fuzz to control, via link options, which fuzzing engine should be used")
option_if_not_defined(TINT_ENABLE_MSAN "Enable memory sanitizer" OFF)
option_if_not_defined(TINT_ENABLE_ASAN "Enable address sanitizer" OFF)
option_if_not_defined(TINT_ENABLE_UBSAN "Enable undefined behaviour sanitizer" OFF)
option_if_not_defined(TINT_ENABLE_BREAK_IN_DEBUGGER "Enable tint::debugger::Break()" OFF)
option_if_not_defined(TINT_EMIT_COVERAGE "Emit code coverage information" OFF)
option_if_not_defined(TINT_CHECK_CHROMIUM_STYLE "Check for [chromium-style] issues during build" OFF)
option_if_not_defined(TINT_SYMBOL_STORE_DEBUG_NAME "Enable storing of name in tint::ast::Symbol to help debugging the AST" OFF)
message(STATUS "Tint build samples: ${TINT_BUILD_SAMPLES}")
message(STATUS "Tint build docs: ${TINT_BUILD_DOCS}")
message(STATUS "Tint build docs with warn as error: ${TINT_DOCS_WARN_AS_ERROR}")
message(STATUS "Tint build SPIR-V reader: ${TINT_BUILD_SPV_READER}")
message(STATUS "Tint build WGSL reader: ${TINT_BUILD_WGSL_READER}")
message(STATUS "Tint build GLSL writer: ${TINT_BUILD_GLSL_WRITER}")
message(STATUS "Tint build HLSL writer: ${TINT_BUILD_HLSL_WRITER}")
message(STATUS "Tint build MSL writer: ${TINT_BUILD_MSL_WRITER}")
message(STATUS "Tint build SPIR-V writer: ${TINT_BUILD_SPV_WRITER}")
message(STATUS "Tint build WGSL writer: ${TINT_BUILD_WGSL_WRITER}")
message(STATUS "Tint build fuzzers: ${TINT_BUILD_FUZZERS}")
message(STATUS "Tint build SPIRV-Tools fuzzer: ${TINT_BUILD_SPIRV_TOOLS_FUZZER}")
message(STATUS "Tint build AST fuzzer: ${TINT_BUILD_AST_FUZZER}")
message(STATUS "Tint build regex fuzzer: ${TINT_BUILD_REGEX_FUZZER}")
message(STATUS "Tint build benchmarks: ${TINT_BUILD_BENCHMARKS}")
message(STATUS "Tint build tests: ${TINT_BUILD_TESTS}")
message(STATUS "Tint build with ASAN: ${TINT_ENABLE_ASAN}")
message(STATUS "Tint build with MSAN: ${TINT_ENABLE_MSAN}")
message(STATUS "Tint build with UBSAN: ${TINT_ENABLE_UBSAN}")
message(STATUS "Tint build checking [chromium-style]: ${TINT_CHECK_CHROMIUM_STYLE}")
message(STATUS "Tint build remote-compile tool: ${TINT_BUILD_REMOTE_COMPILE}")
if (NOT ${TINT_LIB_FUZZING_ENGINE_LINK_OPTIONS} STREQUAL "")
message(STATUS "Using provided LIB_FUZZING_ENGINE options: ${TINT_LIB_FUZZING_ENGINE_LINK_OPTIONS}")
endif()
message(STATUS "Using python3")
find_package(PythonInterp 3 REQUIRED)
if (${TINT_BUILD_SPIRV_TOOLS_FUZZER})
message(STATUS "TINT_BUILD_SPIRV_TOOLS_FUZZER is ON - setting
TINT_BUILD_FUZZERS
TINT_BUILD_SPV_READER
TINT_BUILD_SPV_WRITER
TINT_BUILD_WGSL_READER
TINT_BUILD_WGSL_WRITER
TINT_BUILD_GLSL_WRITER
TINT_BUILD_HLSL_WRITER
TINT_BUILD_MSL_WRITER to ON")
set(TINT_BUILD_FUZZERS ON CACHE BOOL "Build tint fuzzers" FORCE)
set(TINT_BUILD_SPV_READER ON CACHE BOOL "Build SPIR-V reader" FORCE)
set(TINT_BUILD_SPV_WRITER ON CACHE BOOL "Build SPIR-V writer" FORCE)
set(TINT_BUILD_WGSL_READER ON CACHE BOOL "Build WGSL reader" FORCE)
set(TINT_BUILD_WGSL_WRITER ON CACHE BOOL "Build WGSL writer" FORCE)
set(TINT_BUILD_GLSL_WRITER ON CACHE BOOL "Build HLSL writer" FORCE)
set(TINT_BUILD_HLSL_WRITER ON CACHE BOOL "Build HLSL writer" FORCE)
set(TINT_BUILD_MSL_WRITER ON CACHE BOOL "Build MSL writer" FORCE)
endif()
if (${TINT_BUILD_AST_FUZZER})
message(STATUS "TINT_BUILD_AST_FUZZER is ON - setting
TINT_BUILD_FUZZERS
TINT_BUILD_WGSL_READER
TINT_BUILD_WGSL_WRITER
TINT_BUILD_SPV_WRITER
TINT_BUILD_MSL_WRITER
TINT_BUILD_GLSL_WRITER
TINT_BUILD_HLSL_WRITER to ON")
set(TINT_BUILD_FUZZERS ON CACHE BOOL "Build tint fuzzers" FORCE)
set(TINT_BUILD_WGSL_READER ON CACHE BOOL "Build WGSL reader" FORCE)
set(TINT_BUILD_WGSL_WRITER ON CACHE BOOL "Build WGSL writer" FORCE)
set(TINT_BUILD_SPV_WRITER ON CACHE BOOL "Build SPIR-V writer" FORCE)
set(TINT_BUILD_MSL_WRITER ON CACHE BOOL "Build MSL writer" FORCE)
set(TINT_BUILD_GLSL_WRITER ON CACHE BOOL "Build GLSL writer" FORCE)
set(TINT_BUILD_HLSL_WRITER ON CACHE BOOL "Build HLSL writer" FORCE)
endif()
if (${TINT_BUILD_REGEX_FUZZER})
message(STATUS "TINT_BUILD_REGEX_FUZZER is ON - setting
TINT_BUILD_FUZZERS
TINT_BUILD_WGSL_READER
TINT_BUILD_WGSL_WRITER
TINT_BUILD_SPV_WRITER
TINT_BUILD_MSL_WRITER
TINT_BUILD_GLSL_WRITER
TINT_BUILD_HLSL_WRITER to ON")
set(TINT_BUILD_FUZZERS ON CACHE BOOL "Build tint fuzzers" FORCE)
set(TINT_BUILD_WGSL_READER ON CACHE BOOL "Build WGSL reader" FORCE)
set(TINT_BUILD_WGSL_WRITER ON CACHE BOOL "Build WGSL writer" FORCE)
set(TINT_BUILD_SPV_WRITER ON CACHE BOOL "Build SPIR-V writer" FORCE)
set(TINT_BUILD_MSL_WRITER ON CACHE BOOL "Build MSL writer" FORCE)
set(TINT_BUILD_GLSL_WRITER ON CACHE BOOL "Build GLSL writer" FORCE)
set(TINT_BUILD_HLSL_WRITER ON CACHE BOOL "Build HLSL writer" FORCE)
endif()
set(TINT_ROOT_SOURCE_DIR ${PROJECT_SOURCE_DIR})
# CMake < 3.15 sets /W3 in CMAKE_CXX_FLAGS. Remove it if it's there.
# See https://gitlab.kitware.com/cmake/cmake/-/issues/18317
if (MSVC)
if (CMAKE_CXX_FLAGS MATCHES "/W3")
string(REPLACE "/W3" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
endif()
endif()
if (${TINT_CHECK_CHROMIUM_STYLE})
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Xclang -add-plugin -Xclang find-bad-constructs")
endif()
if (${TINT_BUILD_SPV_READER})
include_directories("${DAWN_THIRD_PARTY_DIR}/vulkan-deps/spirv-tools/include")
endif()
if((CMAKE_CXX_COMPILER_ID STREQUAL "Clang") AND (CMAKE_CXX_SIMULATE_ID STREQUAL "MSVC"))
set(COMPILER_IS_CLANG_CL TRUE)
endif()
if((CMAKE_CXX_COMPILER_ID STREQUAL "GNU") OR
(CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang") OR
((CMAKE_CXX_COMPILER_ID STREQUAL "Clang") AND
(NOT COMPILER_IS_CLANG_CL)))
set(COMPILER_IS_LIKE_GNU TRUE)
endif()
# Enable msbuild multiprocessor builds
if (MSVC AND NOT COMPILER_IS_CLANG_CL)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
endif()
set(TINT_OS_CC_SUFFIX "other")
if (NOT TINT_BUILD_AS_OTHER_OS)
if(UNIX OR APPLE)
set(TINT_OS_CC_SUFFIX "posix")
set(TINT_OS_CC_SUFFIX "posix")
elseif(WIN32)
set(TINT_OS_CC_SUFFIX "windows")
set(TINT_OS_CC_SUFFIX "windows")
endif()
endif()
if(${TINT_BUILD_DOCS})
find_package(Doxygen)
if(DOXYGEN_FOUND)
set(DOXYGEN_WARN_AS_ERROR NO)
if(TINT_DOCS_WARN_AS_ERROR)
set(DOXYGEN_WARN_AS_ERROR YES)
endif()
set(DOXYGEN_WARN_FORMAT "$file:$line: $text")
if (MSVC)
set(DOXYGEN_WARN_FORMAT "$file($line): $text")
endif()
add_custom_target(tint-docs ALL
COMMAND ${CMAKE_COMMAND}
-E env
"DOXYGEN_OUTPUT_DIRECTORY=${CMAKE_BINARY_DIR}/docs"
"DOXYGEN_WARN_AS_ERROR=${DOXYGEN_WARN_AS_ERROR}"
"DOXYGEN_WARN_FORMAT=${DOXYGEN_WARN_FORMAT}"
${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMENT "Generating API documentation"
VERBATIM)
else()
message("Doxygen not found. Skipping documentation")
endif(DOXYGEN_FOUND)
endif()
function(tint_core_compile_options TARGET)
target_include_directories(${TARGET} PUBLIC "${TINT_ROOT_SOURCE_DIR}")
target_include_directories(${TARGET} PUBLIC "${TINT_ROOT_SOURCE_DIR}/include")
if (${TINT_BUILD_SPV_READER} OR ${TINT_BUILD_SPV_WRITER})
target_include_directories(${TARGET} PUBLIC
"${DAWN_THIRD_PARTY_DIR}/spirv-headers/include")
endif()
target_compile_definitions(${TARGET} PUBLIC -DTINT_BUILD_SPV_READER=$<BOOL:${TINT_BUILD_SPV_READER}>)
target_compile_definitions(${TARGET} PUBLIC -DTINT_BUILD_WGSL_READER=$<BOOL:${TINT_BUILD_WGSL_READER}>)
target_compile_definitions(${TARGET} PUBLIC -DTINT_BUILD_GLSL_WRITER=$<BOOL:${TINT_BUILD_GLSL_WRITER}>)
target_compile_definitions(${TARGET} PUBLIC -DTINT_BUILD_HLSL_WRITER=$<BOOL:${TINT_BUILD_HLSL_WRITER}>)
target_compile_definitions(${TARGET} PUBLIC -DTINT_BUILD_MSL_WRITER=$<BOOL:${TINT_BUILD_MSL_WRITER}>)
target_compile_definitions(${TARGET} PUBLIC -DTINT_BUILD_SPV_WRITER=$<BOOL:${TINT_BUILD_SPV_WRITER}>)
target_compile_definitions(${TARGET} PUBLIC -DTINT_BUILD_WGSL_WRITER=$<BOOL:${TINT_BUILD_WGSL_WRITER}>)
if (COMPILER_IS_LIKE_GNU)
target_compile_options(${TARGET} PRIVATE
-std=c++17
-fno-exceptions
-fno-rtti
)
if (${TINT_ENABLE_MSAN})
target_compile_options(${TARGET} PRIVATE -fsanitize=memory)
target_link_options(${TARGET} PRIVATE -fsanitize=memory)
elseif (${TINT_ENABLE_ASAN})
target_compile_options(${TARGET} PRIVATE -fsanitize=address)
target_link_options(${TARGET} PRIVATE -fsanitize=address)
elseif (${TINT_ENABLE_UBSAN})
target_compile_options(${TARGET} PRIVATE -fsanitize=undefined)
target_link_options(${TARGET} PRIVATE -fsanitize=undefined)
endif()
endif(COMPILER_IS_LIKE_GNU)
if (TINT_EMIT_COVERAGE)
if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
target_compile_options(${TARGET} PRIVATE "--coverage")
target_link_options(${TARGET} PRIVATE "gcov")
elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
target_compile_options(${TARGET} PRIVATE "-fprofile-instr-generate" "-fcoverage-mapping")
target_link_options(${TARGET} PRIVATE "-fprofile-instr-generate" "-fcoverage-mapping")
else()
message(FATAL_ERROR "Coverage generation not supported for the ${CMAKE_CXX_COMPILER_ID} toolchain")
endif()
endif(TINT_EMIT_COVERAGE)
endfunction()
function(tint_default_compile_options TARGET)
tint_core_compile_options(${TARGET})
set(COMMON_GNU_OPTIONS
-Wall
-Werror
-Wextra
-Wno-documentation-unknown-command
-Wno-padded
-Wno-switch-enum
-Wno-unknown-pragmas
)
set(COMMON_CLANG_OPTIONS
-Wno-c++98-compat
-Wno-c++98-compat-pedantic
-Wno-format-pedantic
-Wno-return-std-move-in-c++11
-Wno-unknown-warning-option
-Wno-undefined-var-template
-Wno-used-but-marked-unused
-Weverything
)
if (COMPILER_IS_LIKE_GNU)
target_compile_options(${TARGET} PRIVATE
-pedantic-errors
${COMMON_GNU_OPTIONS}
)
if (("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang") OR
("${CMAKE_CXX_COMPILER_ID}" STREQUAL "AppleClang"))
target_compile_options(${TARGET} PRIVATE
${COMMON_CLANG_OPTIONS}
)
endif()
endif(COMPILER_IS_LIKE_GNU)
if (MSVC)
# Specify /EHs for exception handling.
target_compile_options(${TARGET} PRIVATE
/bigobj
/EHsc
/W4
/WX
/wd4068
/wd4127
/wd4244
/wd4267
/wd4324
/wd4458
/wd4514
/wd4571
/wd4625
/wd4626
/wd4710
/wd4774
/wd4820
/wd5026
/wd5027
)
# When building with clang-cl on Windows, try to match our clang build
# options as much as possible.
if (COMPILER_IS_CLANG_CL)
target_compile_options(${TARGET} PRIVATE
${COMMON_GNU_OPTIONS}
${COMMON_CLANG_OPTIONS}
# Disable warnings that are usually disabled in downstream deps for
# gcc/clang, but aren't for clang-cl.
-Wno-global-constructors
-Wno-zero-as-null-pointer-constant
-Wno-shorten-64-to-32
-Wno-shadow-field-in-constructor
-Wno-reserved-id-macro
-Wno-language-extension-token
)
endif()
endif()
endfunction()
################################################################################
# Run on all subdirectories
################################################################################
add_subdirectory(third_party)
add_subdirectory(src/tint)
add_subdirectory(generator)
add_subdirectory(src/dawn)
@ -220,3 +569,42 @@ if (DAWN_BUILD_SAMPLES)
#add_subdirectory(src/utils)
add_subdirectory(samples/dawn)
endif()
if (TINT_BUILD_SAMPLES)
add_subdirectory(src/tint/cmd)
endif()
if (TINT_BUILD_FUZZERS)
add_subdirectory(src/tint/fuzzers)
endif()
add_custom_target(tint-lint
COMMAND ./tools/lint
WORKING_DIRECTORY ${TINT_ROOT_SOURCE_DIR}
COMMENT "Running linter"
VERBATIM)
add_custom_target(tint-format
COMMAND ./tools/format
WORKING_DIRECTORY ${TINT_ROOT_SOURCE_DIR}
COMMENT "Running formatter"
VERBATIM)
if (TINT_EMIT_COVERAGE AND CMAKE_CXX_COMPILER_ID MATCHES "Clang")
# Generates a lcov.info file at the project root.
# This can be used by tools such as VSCode's Coverage Gutters extension to
# visualize code coverage in the editor.
get_filename_component(CLANG_BIN_DIR ${CMAKE_C_COMPILER} DIRECTORY)
set(PATH_WITH_CLANG "${CLANG_BIN_DIR}:$ENV{PATH}")
add_custom_target(tint-generate-coverage
COMMAND ${CMAKE_COMMAND} -E env PATH=${PATH_WITH_CLANG} ./tools/tint-generate-coverage $<TARGET_FILE:tint_unittests>
DEPENDS tint_unittests
WORKING_DIRECTORY ${TINT_ROOT_SOURCE_DIR}
COMMENT "Generating tint coverage data"
VERBATIM)
endif()
if (TINT_BUILD_REMOTE_COMPILE)
add_subdirectory(tools/src/cmd/remote-compile)
endif()

100
CMakeSettings.json Normal file
View File

@ -0,0 +1,100 @@
{
"configurations": [
{
"name": "x64-Debug",
"generator": "Ninja",
"configurationType": "Debug",
"inheritEnvironments": [ "msvc_x64_x64" ],
"buildRoot": "${projectDir}\\out\\build\\${name}",
"installRoot": "${projectDir}\\out\\install\\${name}",
"cmakeCommandArgs": "",
"buildCommandArgs": "",
"ctestCommandArgs": "",
"variables": []
},
{
"name": "x64-Release",
"generator": "Ninja",
"configurationType": "RelWithDebInfo",
"buildRoot": "${projectDir}\\out\\build\\${name}",
"installRoot": "${projectDir}\\out\\install\\${name}",
"cmakeCommandArgs": "",
"buildCommandArgs": "",
"ctestCommandArgs": "",
"inheritEnvironments": [ "msvc_x64_x64" ],
"variables": []
},
{
"name": "x86-Debug",
"generator": "Ninja",
"configurationType": "Debug",
"buildRoot": "${projectDir}\\out\\build\\${name}",
"installRoot": "${projectDir}\\out\\install\\${name}",
"cmakeCommandArgs": "",
"buildCommandArgs": "",
"ctestCommandArgs": "",
"inheritEnvironments": [ "msvc_x86" ],
"variables": []
},
{
"name": "x86-Release",
"generator": "Ninja",
"configurationType": "RelWithDebInfo",
"buildRoot": "${projectDir}\\out\\build\\${name}",
"installRoot": "${projectDir}\\out\\install\\${name}",
"cmakeCommandArgs": "",
"buildCommandArgs": "",
"ctestCommandArgs": "",
"inheritEnvironments": [ "msvc_x86" ],
"variables": []
},
{
"name": "x64-Clang-Debug",
"generator": "Ninja",
"configurationType": "Debug",
"buildRoot": "${projectDir}\\out\\build\\${name}",
"installRoot": "${projectDir}\\out\\install\\${name}",
"cmakeCommandArgs": "",
"buildCommandArgs": "",
"ctestCommandArgs": "",
"inheritEnvironments": [ "clang_cl_x64_x64" ],
"variables": []
},
{
"name": "x64-Clang-Release",
"generator": "Ninja",
"configurationType": "RelWithDebInfo",
"buildRoot": "${projectDir}\\out\\build\\${name}",
"installRoot": "${projectDir}\\out\\install\\${name}",
"cmakeCommandArgs": "",
"buildCommandArgs": "",
"ctestCommandArgs": "",
"inheritEnvironments": [ "clang_cl_x64_x64" ],
"variables": []
},
{
"name": "x86-Clang-Debug",
"generator": "Ninja",
"configurationType": "Debug",
"buildRoot": "${projectDir}\\out\\build\\${name}",
"installRoot": "${projectDir}\\out\\install\\${name}",
"cmakeCommandArgs": "",
"buildCommandArgs": "",
"ctestCommandArgs": "",
"inheritEnvironments": [ "clang_cl_x86" ],
"variables": []
},
{
"name": "x86-Clang-Release",
"generator": "Ninja",
"configurationType": "RelWithDebInfo",
"buildRoot": "${projectDir}\\out\\build\\${name}",
"installRoot": "${projectDir}\\out\\install\\${name}",
"cmakeCommandArgs": "",
"buildCommandArgs": "",
"ctestCommandArgs": "",
"inheritEnvironments": [ "clang_cl_x86" ],
"variables": []
}
]
}

93
CODE_OF_CONDUCT.md Normal file
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@ -0,0 +1,93 @@
# Code of Conduct
## Our Pledge
In the interest of fostering an open and welcoming environment, we as
contributors and maintainers pledge to making participation in our project and
our community a harassment-free experience for everyone, regardless of age, body
size, disability, ethnicity, gender identity and expression, level of
experience, education, socio-economic status, nationality, personal appearance,
race, religion, or sexual identity and orientation.
## Our Standards
Examples of behavior that contributes to creating a positive environment
include:
* Using welcoming and inclusive language
* Being respectful of differing viewpoints and experiences
* Gracefully accepting constructive criticism
* Focusing on what is best for the community
* Showing empathy towards other community members
Examples of unacceptable behavior by participants include:
* The use of sexualized language or imagery and unwelcome sexual attention or
advances
* Trolling, insulting/derogatory comments, and personal or political attacks
* Public or private harassment
* Publishing others' private information, such as a physical or electronic
address, without explicit permission
* Other conduct which could reasonably be considered inappropriate in a
professional setting
## Our Responsibilities
Project maintainers are responsible for clarifying the standards of acceptable
behavior and are expected to take appropriate and fair corrective action in
response to any instances of unacceptable behavior.
Project maintainers have the right and responsibility to remove, edit, or reject
comments, commits, code, wiki edits, issues, and other contributions that are
not aligned to this Code of Conduct, or to ban temporarily or permanently any
contributor for other behaviors that they deem inappropriate, threatening,
offensive, or harmful.
## Scope
This Code of Conduct applies both within project spaces and in public spaces
when an individual is representing the project or its community. Examples of
representing a project or community include using an official project e-mail
address, posting via an official social media account, or acting as an appointed
representative at an online or offline event. Representation of a project may be
further defined and clarified by project maintainers.
This Code of Conduct also applies outside the project spaces when the Project
Steward has a reasonable belief that an individual's behavior may have a
negative impact on the project or its community.
## Conflict Resolution
We do not believe that all conflict is bad; healthy debate and disagreement
often yield positive results. However, it is never okay to be disrespectful or
to engage in behavior that violates the project’s code of conduct.
If you see someone violating the code of conduct, you are encouraged to address
the behavior directly with those involved. Many issues can be resolved quickly
and easily, and this gives people more control over the outcome of their
dispute. If you are unable to resolve the matter for any reason, or if the
behavior is threatening or harassing, report it. We are dedicated to providing
an environment where participants feel welcome and safe.
Reports should be directed to David Neto <dneto@google.com>, the
Project Steward(s) for Tint. It is the Project Steward’s duty to
receive and address reported violations of the code of conduct. They will then
work with a committee consisting of representatives from the Open Source
Programs Office and the Google Open Source Strategy team. If for any reason you
are uncomfortable reaching out the Project Steward, please email
opensource@google.com.
We will investigate every complaint, but you may not receive a direct response.
We will use our discretion in determining when and how to follow up on reported
incidents, which may range from not taking action to permanent expulsion from
the project and project-sponsored spaces. We will notify the accused of the
report and provide them an opportunity to discuss it before any action is taken.
The identity of the reporter will be omitted from the details of the report
supplied to the accused. In potentially harmful situations, such as ongoing
harassment or threats to anyone's safety, we may take action without notice.
## Attribution
This Code of Conduct is adapted from the Contributor Covenant, version 1.4,
available at
https://www.contributor-covenant.org/version/1/4/code-of-conduct.html

45
CONTRIBUTING.md Normal file
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@ -0,0 +1,45 @@
# How to Contribute
We'd love to accept your patches and contributions to this project. There are
just a few small guidelines you need to follow.
## Contributor License Agreement
Contributions to this project must be accompanied by a Contributor License
Agreement. You (or your employer) retain the copyright to your contribution;
this simply gives us permission to use and redistribute your contributions as
part of the project. Head over to <https://cla.developers.google.com/> to see
your current agreements on file or to sign a new one.
You generally only need to submit a CLA once, so if you've already submitted one
(even if it was for a different project), you probably don't need to do it
again.
## Code reviews
All submissions, including submissions by project members, require review. We
use [Dawn's Gerrit](https://dawn-review.googlesource.com/) for this purpose.
Submissions should follow the [Tint style guide](docs/tint/style_guide.md).
## Pushing to Gerrit
Each change requires a `Change-Id` field in the commit message, which is generated by the [Gerrit commit-msg hook](](https://gerrit-review.googlesource.com/Documentation/cmd-hook-commit-msg.html)). \
In a bash terminal, with the current path set to your tint source tree, this can be obtained by running the following:
```bash
f=`git rev-parse --git-dir`/hooks/commit-msg ; mkdir -p $(dirname $f) ; curl -Lo $f https://gerrit-review.googlesource.com/tools/hooks/commit-msg ; chmod +x $f
```
If you've already locally committed a change without the `Change-Id`, running `git commit --amend` will add the missing `Change-Id`.
To create a Gerrit change for review, type:
```bash
git push origin HEAD:refs/for/main
```
## Community Guidelines
This project follows
[Google's Open Source Community Guidelines](https://opensource.google.com/conduct/).

1
CPPLINT.cfg Normal file
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@ -0,0 +1 @@
set noparent

89
DEPS
View File

@ -42,7 +42,6 @@ deps = {
'url': '{chromium_git}/external/github.com/llvm/llvm-project/clang/tools/clang-format.git@99803d74e35962f63a775f29477882afd4d57d94',
'condition': 'dawn_standalone',
},
'buildtools/linux64': {
'packages': [{
'package': 'gn/gn/linux-amd64',
@ -116,11 +115,6 @@ deps = {
'condition': 'dawn_standalone',
},
# WGSL support
'third_party/tint': {
'url': '{dawn_git}/tint@a730eb738e9f00fb52e9ac38cebe978373602a1e',
},
# GLFW for tests and samples
'third_party/glfw': {
'url': '{chromium_git}/external/github.com/glfw/glfw@94773111300fee0453844a4c9407af7e880b4df8',
@ -176,6 +170,10 @@ deps = {
'url': '{github_git}/gpuweb/gpuweb.git@881403b5fda2d9ac9ffc5daa24e34738205bf155',
'condition': 'dawn_node',
},
'third_party/gpuweb-cts': {
'url': '{chromium_git}/external/github.com/gpuweb/cts@b0291fd966b55a5efc496772555b94842bde1085',
'condition': 'dawn_standalone',
},
'tools/golang': {
'condition': 'dawn_node',
@ -194,6 +192,16 @@ deps = {
}],
'dep_type': 'cipd',
},
# Misc dependencies inherited from Tint
'third_party/benchmark': {
'url': '{chromium_git}/external/github.com/google/benchmark.git@e991355c02b93fe17713efe04cbc2e278e00fdbd',
'condition': 'dawn_standalone',
},
'third_party/protobuf': {
'url': '{chromium_git}/external/github.com/protocolbuffers/protobuf.git@fde7cf7358ec7cd69e8db9be4f1fa6a5c431386a',
'condition': 'dawn_standalone',
},
}
hooks = [
@ -253,33 +261,22 @@ hooks = [
'condition': 'dawn_standalone and host_os == "win"',
'action': [ 'download_from_google_storage',
'--no_resume',
'--platform=win32',
'--no_auth',
'--bucket', 'chromium-clang-format',
'-s', 'buildtools/win/clang-format.exe.sha1',
],
},
{
'name': 'clang_format_mac_x64',
'name': 'clang_format_mac',
'pattern': '.',
'condition': 'dawn_standalone and host_os == "mac" and host_cpu == "x64"',
'condition': 'dawn_standalone and host_os == "mac"',
'action': [ 'download_from_google_storage',
'--no_resume',
'--platform=darwin',
'--no_auth',
'--bucket', 'chromium-clang-format',
'-s', 'buildtools/mac/clang-format.x64.sha1',
'-o', 'buildtools/mac/clang-format',
],
},
{
'name': 'clang_format_mac_arm64',
'pattern': '.',
'condition': 'dawn_standalone and host_os == "mac" and host_cpu == "arm64"',
'action': [ 'download_from_google_storage',
'--no_resume',
'--no_auth',
'--bucket', 'chromium-clang-format',
'-s', 'buildtools/mac/clang-format.arm64.sha1',
'-o', 'buildtools/mac/clang-format',
'-s', 'buildtools/mac/clang-format.sha1',
],
},
{
@ -288,11 +285,59 @@ hooks = [
'condition': 'dawn_standalone and host_os == "linux"',
'action': [ 'download_from_google_storage',
'--no_resume',
'--platform=linux*',
'--no_auth',
'--bucket', 'chromium-clang-format',
'-s', 'buildtools/linux64/clang-format.sha1',
],
},
# Pull the compilers and system libraries for hermetic builds
{
'name': 'sysroot_x86',
'pattern': '.',
'condition': 'checkout_linux and ((checkout_x86 or checkout_x64))',
'action': ['python3', 'build/linux/sysroot_scripts/install-sysroot.py',
'--arch=x86'],
},
{
'name': 'sysroot_x64',
'pattern': '.',
'condition': 'checkout_linux and (checkout_x64)',
'action': ['python3', 'build/linux/sysroot_scripts/install-sysroot.py',
'--arch=x64'],
},
{
# Update the Mac toolchain if necessary.
'name': 'mac_toolchain',
'pattern': '.',
'condition': 'checkout_mac',
'action': ['python3', 'build/mac_toolchain.py'],
},
{
# Update the Windows toolchain if necessary. Must run before 'clang' below.
'name': 'win_toolchain',
'pattern': '.',
'condition': 'checkout_win',
'action': ['python3', 'build/vs_toolchain.py', 'update', '--force'],
},
{
# Note: On Win, this should run after win_toolchain, as it may use it.
'name': 'clang',
'pattern': '.',
'action': ['python3', 'tools/clang/scripts/update.py'],
},
{
# Pull rc binaries using checked-in hashes.
'name': 'rc_win',
'pattern': '.',
'condition': 'checkout_win and (host_os == "win")',
'action': [ 'download_from_google_storage',
'--no_resume',
'--no_auth',
'--bucket', 'chromium-browser-clang/rc',
'-s', 'build/toolchain/win/rc/win/rc.exe.sha1',
],
},
# Update build/util/LASTCHANGE.
{
'name': 'lastchange',

2474
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File diff suppressed because it is too large Load Diff

9
OWNERS
View File

@ -9,3 +9,12 @@ kainino@chromium.org
per-file dawn.json=kainino@chromium.org
per-file DEPS=*
per-file README.md=file://docs/dawn/OWNERS
# Tint specific OWNERS
amaiorano@google.com
bclayton@chromium.org
bclayton@google.com
cwallez@chromium.org
dneto@google.com
jrprice@google.com
rharrison@chromium.org

11
OWNERS.dawn Normal file
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@ -0,0 +1,11 @@
cwallez@chromium.org
enga@chromium.org
jiawei.shao@intel.com
# Backup reviewers if needed.
bclayton@google.com
kainino@chromium.org
per-file dawn.json=kainino@chromium.org
per-file DEPS=*
per-file README.md=file://docs/dawn/OWNERS

7
OWNERS.tint Normal file
View File

@ -0,0 +1,7 @@
amaiorano@google.com
bclayton@chromium.org
bclayton@google.com
cwallez@chromium.org
dneto@google.com
jrprice@google.com
rharrison@chromium.org

117
PRESUBMIT.py
View File

@ -1,4 +1,4 @@
# Copyright 2018 The Dawn Authors
# Copyright 2022 The Dawn & Tint Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
@ -12,12 +12,97 @@
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import platform
import subprocess
import re
USE_PYTHON3 = True
NONINCLUSIVE_REGEXES = [
r"(?i)black[-_]?list",
r"(?i)white[-_]?list",
r"(?i)gr[ea]y[-_]?list",
r"(?i)(first class citizen)",
r"(?i)black[-_]?hat",
r"(?i)white[-_]?hat",
r"(?i)gr[ea]y[-_]?hat",
r"(?i)master",
r"(?i)slave",
r"(?i)\bhim\b",
r"(?i)\bhis\b",
r"(?i)\bshe\b",
r"(?i)\bher\b",
r"(?i)\bguys\b",
r"(?i)\bhers\b",
r"(?i)\bman\b",
r"(?i)\bwoman\b",
r"(?i)\she\s",
r"(?i)\she$",
r"(?i)^he\s",
r"(?i)^he$",
r"(?i)\she['|\u2019]d\s",
r"(?i)\she['|\u2019]d$",
r"(?i)^he['|\u2019]d\s",
r"(?i)^he['|\u2019]d$",
r"(?i)\she['|\u2019]s\s",
r"(?i)\she['|\u2019]s$",
r"(?i)^he['|\u2019]s\s",
r"(?i)^he['|\u2019]s$",
r"(?i)\she['|\u2019]ll\s",
r"(?i)\she['|\u2019]ll$",
r"(?i)^he['|\u2019]ll\s",
r"(?i)^he['|\u2019]ll$",
r"(?i)grandfather",
r"(?i)\bmitm\b",
r"(?i)\bcrazy\b",
r"(?i)\binsane\b",
r"(?i)\bblind\sto\b",
r"(?i)\bflying\sblind\b",
r"(?i)\bblind\seye\b",
r"(?i)\bcripple\b",
r"(?i)\bcrippled\b",
r"(?i)\bdumb\b",
r"(?i)\bdummy\b",
r"(?i)\bparanoid\b",
r"(?i)\bsane\b",
r"(?i)\bsanity\b",
r"(?i)red[-_]?line",
]
NONINCLUSIVE_REGEX_LIST = []
for reg in NONINCLUSIVE_REGEXES:
NONINCLUSIVE_REGEX_LIST.append(re.compile(reg))
def _CheckNonInclusiveLanguage(input_api, output_api, source_file_filter=None):
"""Checks the files for non-inclusive language."""
matches = []
for f in input_api.AffectedFiles(include_deletes=False,
file_filter=source_file_filter):
for line_num, line in f.ChangedContents():
for reg in NONINCLUSIVE_REGEX_LIST:
match = reg.search(line)
if match:
matches.append(
"{} ({}): found non-inclusive language: {}".format(
f.LocalPath(), line_num, match.group(0)))
if len(matches):
return [
output_api.PresubmitPromptWarning('Non-inclusive language found:',
items=matches)
]
return []
def _NonInclusiveFileFilter(file):
filter_list = [
"PRESUBMIT.py", # Non-inclusive language check data
"docs/tint/spirv-input-output-variables.md", # External URL
"test/tint/samples/compute_boids.wgsl ", # External URL
]
return file in filter_list
def _DoCommonChecks(input_api, output_api):
results = []
@ -27,6 +112,30 @@ def _DoCommonChecks(input_api, output_api):
input_api.canned_checks.CheckPatchFormatted(input_api,
output_api,
check_python=True))
results.extend(
input_api.canned_checks.CheckChangeHasDescription(
input_api, output_api))
results.extend(
input_api.canned_checks.CheckGNFormatted(input_api, output_api))
results.extend(
input_api.canned_checks.CheckChangeHasNoCrAndHasOnlyOneEol(
input_api, output_api))
results.extend(
input_api.canned_checks.CheckChangeHasNoTabs(input_api, output_api))
results.extend(
input_api.canned_checks.CheckChangeTodoHasOwner(input_api, output_api))
results.extend(
input_api.canned_checks.CheckChangeHasNoStrayWhitespace(
input_api, output_api))
results.extend(
input_api.canned_checks.CheckDoNotSubmit(input_api, output_api))
results.extend(
input_api.canned_checks.CheckChangeLintsClean(input_api,
output_api,
lint_filters=""))
results.extend(
_CheckNonInclusiveLanguage(input_api, output_api,
_NonInclusiveFileFilter))
return results

38
PRESUBMIT.py.dawn Normal file
View File

@ -0,0 +1,38 @@
# Copyright 2018 The Dawn Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import platform
import subprocess
USE_PYTHON3 = True
def _DoCommonChecks(input_api, output_api):
results = []
results.extend(
input_api.canned_checks.CheckChangedLUCIConfigs(input_api, output_api))
results.extend(
input_api.canned_checks.CheckPatchFormatted(input_api,
output_api,
check_python=True))
return results
def CheckChangeOnUpload(input_api, output_api):
return _DoCommonChecks(input_api, output_api)
def CheckChangeOnCommit(input_api, output_api):
return _DoCommonChecks(input_api, output_api)

167
PRESUBMIT.py.tint Executable file
View File

@ -0,0 +1,167 @@
# Copyright 2020 The Tint Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Presubmit script for Tint.
See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
for more details about the presubmit API built into depot_tools.
"""
import re
USE_PYTHON3 = True
def _LicenseHeader(input_api):
"""Returns the license header regexp."""
# Accept any year number from 2019 to the current year
current_year = int(input_api.time.strftime('%Y'))
allowed_years = (str(s) for s in reversed(xrange(2019, current_year + 1)))
years_re = '(' + '|'.join(allowed_years) + ')'
license_header = (
r'.*? Copyright( \(c\))? %(year)s The Tint [Aa]uthors\n '
r'.*?\n'
r'.*? Licensed under the Apache License, Version 2.0 (the "License");\n'
r'.*? you may not use this file except in compliance with the License.\n'
r'.*? You may obtain a copy of the License at\n'
r'.*?\n'
r'.*? http://www.apache.org/licenses/LICENSE-2.0\n'
r'.*?\n'
r'.*? Unless required by applicable law or agreed to in writing, software\n'
r'.*? distributed under the License is distributed on an "AS IS" BASIS,\n'
r'.*? WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n'
r'.*? See the License for the specific language governing permissions and\n'
r'.*? limitations under the License.\n') % {
'year': years_re,
}
return license_header
REGEXES = [
r"(?i)black[-_]?list",
r"(?i)white[-_]?list",
r"(?i)gr[ea]y[-_]?list",
r"(?i)(first class citizen)",
r"(?i)black[-_]?hat",
r"(?i)white[-_]?hat",
r"(?i)gr[ea]y[-_]?hat",
r"(?i)master",
r"(?i)slave",
r"(?i)\bhim\b",
r"(?i)\bhis\b",
r"(?i)\bshe\b",
r"(?i)\bher\b",
r"(?i)\bguys\b",
r"(?i)\bhers\b",
r"(?i)\bman\b",
r"(?i)\bwoman\b",
r"(?i)\she\s",
r"(?i)\she$",
r"(?i)^he\s",
r"(?i)^he$",
r"(?i)\she['|\u2019]d\s",
r"(?i)\she['|\u2019]d$",
r"(?i)^he['|\u2019]d\s",
r"(?i)^he['|\u2019]d$",
r"(?i)\she['|\u2019]s\s",
r"(?i)\she['|\u2019]s$",
r"(?i)^he['|\u2019]s\s",
r"(?i)^he['|\u2019]s$",
r"(?i)\she['|\u2019]ll\s",
r"(?i)\she['|\u2019]ll$",
r"(?i)^he['|\u2019]ll\s",
r"(?i)^he['|\u2019]ll$",
r"(?i)grandfather",
r"(?i)\bmitm\b",
r"(?i)\bcrazy\b",
r"(?i)\binsane\b",
r"(?i)\bblind\sto\b",
r"(?i)\bflying\sblind\b",
r"(?i)\bblind\seye\b",
r"(?i)\bcripple\b",
r"(?i)\bcrippled\b",
r"(?i)\bdumb\b",
r"(?i)\bdummy\b",
r"(?i)\bparanoid\b",
r"(?i)\bsane\b",
r"(?i)\bsanity\b",
r"(?i)red[-_]?line",
]
REGEX_LIST = []
for reg in REGEXES:
REGEX_LIST.append(re.compile(reg))
def CheckNonInclusiveLanguage(input_api, output_api, source_file_filter=None):
"""Checks the files for non-inclusive language."""
matches = []
for f in input_api.AffectedFiles(include_deletes=False,
file_filter=source_file_filter):
for line_num, line in f.ChangedContents():
for reg in REGEX_LIST:
match = reg.search(line)
if match:
matches.append(
"{} ({}): found non-inclusive language: {}".format(
f.LocalPath(), line_num, match.group(0)))
if len(matches):
return [
output_api.PresubmitPromptWarning('Non-inclusive language found:',
items=matches)
]
return []
def CheckChange(input_api, output_api):
results = []
results += input_api.canned_checks.CheckChangeHasDescription(
input_api, output_api)
results += input_api.canned_checks.CheckPatchFormatted(input_api,
output_api,
check_python=True)
results += input_api.canned_checks.CheckGNFormatted(input_api, output_api)
results += input_api.canned_checks.CheckChangeHasNoCrAndHasOnlyOneEol(
input_api, output_api)
results += input_api.canned_checks.CheckChangeHasNoTabs(
input_api, output_api)
results += input_api.canned_checks.CheckChangeTodoHasOwner(
input_api, output_api)
results += input_api.canned_checks.CheckChangeHasNoStrayWhitespace(
input_api, output_api)
results += input_api.canned_checks.CheckDoNotSubmit(input_api, output_api)
results += input_api.canned_checks.CheckChangeLintsClean(input_api,
output_api,
lint_filters="")
def NonInclusiveFileFilter(file):
filter_list = [
"docs/tint/spirv-input-output-variables.md", # External URL
"test/tint/samples/compute_boids.wgsl ", # External URL
]
return file in filter_list
results += CheckNonInclusiveLanguage(input_api, output_api,
NonInclusiveFileFilter)
return results
def CheckChangeOnUpload(input_api, output_api):
return CheckChange(input_api, output_api)
def CheckChangeOnCommit(input_api, output_api):
return CheckChange(input_api, output_api)

107
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View File

@ -50,3 +50,110 @@ Apache 2.0 Public License, please see [LICENSE](/LICENSE).
## Disclaimer
This is not an officially supported Google product.
# Tint
Tint is a compiler for the WebGPU Shader Language (WGSL).
This is not an officially supported Google product.
## Requirements
* Git
* CMake (3.10.2 or later)
* Ninja (or other build tool)
* Python, for fetching dependencies
* [depot_tools] in your path
## Build options
* `TINT_BUILD_SPV_READER` : enable the SPIR-V input reader (off by default)
* `TINT_BUILD_WGSL_READER` : enable the WGSL input reader (on by default)
* `TINT_BUILD_SPV_WRITER` : enable the SPIR-V output writer (on by default)
* `TINT_BUILD_WGSL_WRITER` : enable the WGSL output writer (on by default)
* `TINT_BUILD_FUZZERS` : enable building fuzzzers (off by default)
## Building
Tint uses Chromium dependency management so you need to install [depot_tools]
and add it to your PATH.
[depot_tools]: http://commondatastorage.googleapis.com/chrome-infra-docs/flat/depot_tools/docs/html/depot_tools_tutorial.html#_setting_up
### Getting source & dependencies
```sh
# Clone the repo as "tint"
git clone https://dawn.googlesource.com/tint tint
cd tint
# Bootstrap the gclient configuration
cp standalone.gclient .gclient
# Fetch external dependencies and toolchains with gclient
gclient sync
```
### Compiling using CMake + Ninja
```sh
mkdir -p out/Debug
cd out/Debug
cmake -GNinja ../..
ninja # or autoninja
```
### Compiling using CMake + make
```sh
mkdir -p out/Debug
cd out/Debug
cmake ../..
make # -j N for N-way parallel build
```
### Compiling using gn + ninja
```sh
mkdir -p out/Debug
gn gen out/Debug
autoninja -C out/Debug
```
### Fuzzers on MacOS
If you are attempting fuzz, using `TINT_BUILD_FUZZERS=ON`, the version of llvm
in the XCode SDK does not have the needed libfuzzer functionality included.
The build error that you will see from using the XCode SDK will look something
like this:
```
ld: file not found:/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/11.0.0/lib/darwin/libclang_rt.fuzzer_osx.a
```
The solution to this problem is to use a full version llvm, like what you would
get via homebrew, `brew install llvm`, and use something like `CC=<path to full
clang> cmake ..` to setup a build using that toolchain.
### Checking [chromium-style] issues in CMake builds
The gn based work flow uses the Chromium toolchain for building in anticipation
of integration of Tint into Chromium based projects. This toolchain has
additional plugins for checking for style issues, which are marked with
[chromium-style] in log messages. This means that this toolchain is more strict
then the default clang toolchain.
In the future we will have a CQ that will build this work flow and flag issues
automatically. Until that is in place, to avoid causing breakages you can run
the [chromium-style] checks using the CMake based work flows. This requires
setting `CC` to the version of clang checked out by `gclient sync` and setting
the `TINT_CHECK_CHROMIUM_STYLE` to `ON`.
```sh
mkdir -p out/style
cd out/style
cmake ../..
CC=../../third_party/llvm-build/Release+Asserts/bin/clang cmake -DTINT_CHECK_CHROMIUM_STYLE=ON ../../ # add -GNinja for ninja builds
```
## Issues
Please file any issues or feature requests at
https://bugs.chromium.org/p/tint/issues/entry
## Contributing
Please see the CONTRIBUTING and CODE_OF_CONDUCT files on how to contribute to
Tint.
Tint has a process for supporting [experimental extensions](docs/tint/experimental_extensions.md).

52
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View File

@ -0,0 +1,52 @@
![Dawn's logo: a sun rising behind a stylized mountain inspired by the WebGPU logo. The text "Dawn" is written below it.](docs/imgs/dawn_logo.png "Dawn's logo")
# Dawn, a WebGPU implementation
Dawn is an open-source and cross-platform implementation of the work-in-progress [WebGPU](https://webgpu.dev) standard.
More precisely it implements [`webgpu.h`](https://github.com/webgpu-native/webgpu-headers/blob/master/webgpu.h) that is a one-to-one mapping with the WebGPU IDL.
Dawn is meant to be integrated as part of a larger system and is the underlying implementation of WebGPU in Chromium.
Dawn provides several WebGPU building blocks:
- **WebGPU C/C++ headers** that applications and other building blocks use.
- The `webgpu.h` version that Dawn implements.
- A C++ wrapper for the `webgpu.h`.
- **A "native" implementation of WebGPU** using platforms' GPU APIs:
- **D3D12** on Windows 10
- **Metal** on macOS and iOS
- **Vulkan** on Windows, Linux, ChromeOS, Android and Fuchsia
- OpenGL as best effort where available
- **A client-server implementation of WebGPU** for applications that are in a sandbox without access to native drivers
Helpful links:
- [Dawn's bug tracker](https://bugs.chromium.org/p/dawn/issues/entry) if you find issues with Dawn.
- [Dawn's mailing list](https://groups.google.com/forum/#!members/dawn-graphics) for other discussions related to Dawn.
- [Dawn's source code](https://dawn.googlesource.com/dawn)
- [Dawn's Matrix chatroom](https://matrix.to/#/#webgpu-dawn:matrix.org) for live discussion around contributing or using Dawn.
- [WebGPU's Matrix chatroom](https://matrix.to/#/#WebGPU:matrix.org)
## Documentation table of content
Developer documentation:
- [Dawn overview](docs/dawn/overview.md)
- [Building Dawn](docs/dawn/building.md)
- [Contributing to Dawn](docs/dawn/contributing.md)
- [Testing Dawn](docs/dawn/testing.md)
- [Debugging Dawn](docs/dawn/debugging.md)
- [Dawn's infrastructure](docs/dawn/infra.md)
- [Dawn errors](docs/dawn/errors.md)
User documentation: (TODO, figure out what overlaps with the webgpu.h docs)
## Status
(TODO)
## License
Apache 2.0 Public License, please see [LICENSE](/LICENSE).
## Disclaimer
This is not an officially supported Google product.

106
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@ -0,0 +1,106 @@
# Tint
Tint is a compiler for the WebGPU Shader Language (WGSL).
This is not an officially supported Google product.
## Requirements
* Git
* CMake (3.10.2 or later)
* Ninja (or other build tool)
* Python, for fetching dependencies
* [depot_tools] in your path
## Build options
* `TINT_BUILD_SPV_READER` : enable the SPIR-V input reader (off by default)
* `TINT_BUILD_WGSL_READER` : enable the WGSL input reader (on by default)
* `TINT_BUILD_SPV_WRITER` : enable the SPIR-V output writer (on by default)
* `TINT_BUILD_WGSL_WRITER` : enable the WGSL output writer (on by default)
* `TINT_BUILD_FUZZERS` : enable building fuzzzers (off by default)
## Building
Tint uses Chromium dependency management so you need to install [depot_tools]
and add it to your PATH.
[depot_tools]: http://commondatastorage.googleapis.com/chrome-infra-docs/flat/depot_tools/docs/html/depot_tools_tutorial.html#_setting_up
### Getting source & dependencies
```sh
# Clone the repo as "tint"
git clone https://dawn.googlesource.com/tint tint
cd tint
# Bootstrap the gclient configuration
cp standalone.gclient .gclient
# Fetch external dependencies and toolchains with gclient
gclient sync
```
### Compiling using CMake + Ninja
```sh
mkdir -p out/Debug
cd out/Debug
cmake -GNinja ../..
ninja # or autoninja
```
### Compiling using CMake + make
```sh
mkdir -p out/Debug
cd out/Debug
cmake ../..
make # -j N for N-way parallel build
```
### Compiling using gn + ninja
```sh
mkdir -p out/Debug
gn gen out/Debug
autoninja -C out/Debug
```
### Fuzzers on MacOS
If you are attempting fuzz, using `TINT_BUILD_FUZZERS=ON`, the version of llvm
in the XCode SDK does not have the needed libfuzzer functionality included.
The build error that you will see from using the XCode SDK will look something
like this:
```
ld: file not found:/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/11.0.0/lib/darwin/libclang_rt.fuzzer_osx.a
```
The solution to this problem is to use a full version llvm, like what you would
get via homebrew, `brew install llvm`, and use something like `CC=<path to full
clang> cmake ..` to setup a build using that toolchain.
### Checking [chromium-style] issues in CMake builds
The gn based work flow uses the Chromium toolchain for building in anticipation
of integration of Tint into Chromium based projects. This toolchain has
additional plugins for checking for style issues, which are marked with
[chromium-style] in log messages. This means that this toolchain is more strict
then the default clang toolchain.
In the future we will have a CQ that will build this work flow and flag issues
automatically. Until that is in place, to avoid causing breakages you can run
the [chromium-style] checks using the CMake based work flows. This requires
setting `CC` to the version of clang checked out by `gclient sync` and setting
the `TINT_CHECK_CHROMIUM_STYLE` to `ON`.
```sh
mkdir -p out/style
cd out/style
cmake ../..
CC=../../third_party/llvm-build/Release+Asserts/bin/clang cmake -DTINT_CHECK_CHROMIUM_STYLE=ON ../../ # add -GNinja for ninja builds
```
## Issues
Please file any issues or feature requests at
https://bugs.chromium.org/p/tint/issues/entry
## Contributing
Please see the CONTRIBUTING and CODE_OF_CONDUCT files on how to contribute to
Tint.
Tint has a process for supporting [experimental extensions](docs/tint/experimental_extensions.md).

2
build_overrides/build.gni
View File

@ -1,4 +1,4 @@
# Copyright 2018 The Dawn Authors
# Copyright 2022 The Dawn Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.

1
build_overrides/dawn.gni
View File

@ -34,7 +34,6 @@ dawn_glfw_dir = "//third_party/glfw"
dawn_googletest_dir = "//third_party/googletest"
dawn_spirv_tools_dir = "//third_party/vulkan-deps/spirv-tools/src"
dawn_swiftshader_dir = "//third_party/swiftshader"
dawn_tint_dir = "//third_party/tint"
dawn_vulkan_loader_dir = "//third_party/vulkan-deps/vulkan-loader/src"
dawn_vulkan_validation_layers_dir =
"//third_party/vulkan-deps/vulkan-validation-layers/src"

1
build_overrides/tint.gni
View File

@ -12,7 +12,6 @@
# See the License for the specific language governing permissions and
# limitations under the License.
tint_root_dir = "//third_party/tint"
tint_spirv_tools_dir = "//third_party/vulkan-deps/spirv-tools/src"
tint_spirv_headers_dir = "//third_party/vulkan-deps/spirv-headers/src"

195
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@ -0,0 +1,195 @@
# Tint Architecture
```
┏━━━━━━━━┓ ┏━━━━━━┓
┃ SPIR━V ┃ ┃ WGSL ┃
┗━━━━┃━━━┛ ┗━━━┃━━┛
▼ ▼
┏━━━━━━━━━┃━━━━━━━━━━━━━━━━━━━━━━━━━━━┃━━━━━━━━┓
┃ ┃ Reader ┃ ┃
┃ ┃ ┃ ┃
┃ ┏━━━━━━━┻━━━━━━┓ ┏━━━━━━┻━━━━━━┓ ┃
┃ ┃ SPIRV-Reader ┃ ┃ WGSL-Reader ┃ ┃
┃ ┗━━━━━━━━━━━━━━┛ ┗━━━━━━━━━━━━━┛ ┃
┗━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━┛
▼
┏━━━━━━━━━━━━━━━━━┻━━━━━━━━━━━━━━━━━┓
┃ ProgramBuilder ┃
┃ (mutable) ┃
┏━━━━━━━━━━━━►┫ ┏━━━━━┓ ┏━━━━━━━┓ ┏━━━━━━━━━┓ ┃
┃ ┃ ┃ AST ┃ ┃ Types ┃ ┃ Symbols ┃ ┃
┃ ┃ ┗━━━━━┛ ┗━━━━━━━┛ ┗━━━━━━━━━┛ ┃
┃ ┗━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━┛
┃ ▼
┃ ┌┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┃┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┐
▲ ┆ Build ▼ ┆
┏━━━┻━━━┓ ┆ ┏━━━━━━━━┻━━━━━━━━┓ ┆
┃ Clone ┃ ┆ ┃ Resolver ┃ ┆
┗━━━┳━━━┛ ┆ ┗━━━━━━━━━━━━━━━━━┛ ┆
▲ └┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┃┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┘
┃ ▼
┃ ┏━━━━━━━━━━━━━━━━━━━━━━━┻━━━━━━━━━━━━━━━━━━━━━━┓
┃ ┃ Program ┃
┃ ┃ (immutable) ┃
┣━━━━━━◄┫ ┏━━━━━┓ ┏━━━━━━━┓ ┏━━━━━━━━━━┓ ┏━━━━━━━━━┓ ┃
┃ ┃ ┃ AST ┃ ┃ Types ┃ ┃ Semantic ┃ ┃ Symbols ┃ ┃
┃ ┃ ┗━━━━━┛ ┗━━━━━━━┛ ┗━━━━━━━━━━┛ ┗━━━━━━━━━┛ ┃
┃ ┗━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━┛
▲ ▼
┏━━━━━┻━━━━━┓ ┃ ┏━━━━━━━━━━━┓
┃ Transform ┃◄━━━━━━━━━━━━━━━━━━━━━━━━╋━━━━━━━━━━━━►┃ Inspector ┃
┗━━━━━━━━━━━┛ ┃ ┗━━━━━━━━━━━┛
▼
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┻━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃ Writers ┃
┃ ┃
┃ ┏━━━━━━━━━━━━━━┓┏━━━━━━━━━━━━━┓┏━━━━━━━━━━━━━┓┏━━━━━━━━━━━━━┓┏━━━━━━━━━━━━┓ ┃
┃ ┃ SPIRV-Writer ┃┃ WGSL-Writer ┃┃ HLSL-Writer ┃┃ GLSL-Writer ┃┃ MSL-Writer ┃ ┃
┃ ┗━━━━━━━┳━━━━━━┛┗━━━━━━┳━━━━━━┛┗━━━━━━┳━━━━━━┛┗━━━━━━┳━━━━━━┛┗━━━━━━┳━━━━━┛ ┃
┗━━━━━━━━━┃━━━━━━━━━━━━━━┃━━━━━━━━━━━━━━┃━━━━━━━━━━━━━━┃━━━━━━━━━━━━━━┃━━━━━━━┛
▼ ▼ ▼ ▼ ▼
┏━━━━┻━━━┓ ┏━━━┻━━┓ ┏━━━┻━━┓ ┏━━━┻━━┓ ┏━━┻━━┓
┃ SPIR-V ┃ ┃ WGSL ┃ ┃ HLSL ┃ ┃ GLSL ┃ ┃ MSL ┃
┗━━━━━━━━┛ ┗━━━━━━┛ ┗━━━━━━┛ ┗━━━━━━┛ ┗━━━━━┛
```
## Reader
Readers are responsible for parsing a shader program and populating a
`ProgramBuilder` with the parsed AST, type and symbol information.
The WGSL reader is a recursive descent parser. It closely follows the WGSL
grammar in the naming of the parse methods.
## ProgramBuilder
A `ProgramBuilder` is the primary interface to construct an immutable `Program`.
There are a number of methods exposed which make creating of the `Program`
simpler. A `ProgramBuilder` can only be used once, and must be discarded after
the `Program` is constructed.
A `Program` is built from the `ProgramBuilder` by `std::move()`ing the
`ProgramBuilder` to a new `Program` object. When built, resolution is performed
so the produced `Program` will contain all the needed semantic information.
At any time before building the `Program`, `ProgramBuilder::IsValid()` may be
called to ensure the AST is **structurally** correct. This checks that things
like `if` statements have a condition and body attached.
If further changes to the `Program` are needed (say via a `Transform`) then a
new `ProgramBuilder` can be produced by cloning the `Program` into a new
`ProgramBuilder`.
Unlike `Program`s, `ProgramBuilder`s are not part of the public Tint API.
## AST
The Abstract Syntax Tree is a directed acyclic graph of `ast::Node`s which
encode the syntactic structure of the WGSL program.
The root of the AST is the `ast::Module` class which holds each of the declared
functions, variables and user defined types (type aliases and structures).
Each `ast::Node` represents a **single** part of the program's source, and so
`ast::Node`s are not shared.
The AST does not perform any verification of its content. For example, the
`ast::StrideAttribute` node has numeric stride parameter, which is a count of
the number of bytes from the start of one array element to the start of the
next. The AST node itself does not constrain the set of stride values that you
can set, aside from storing it as an unsigned integer.
## Types
Types are constructed during the Reader and resolution phases, and are
held by the `Program` or `ProgramBuilder`. AST and semantic nodes can both
reference types.
Each `type::Type` node **uniquely** represents a particular spelling of a WGSL
type within the program, so you can compare `type::Type*` pointers to check for
equivalence of type expressions.
For example, there is only one `type::Type` node for the `i32` type, no matter
how many times it is mentioned in the source program.
However, if `MyI32` is a type alias for `i32`, then they will have two different
type nodes.
## Semantic information
Semantic information is held by `sem::Node`s which describe the program at
a higher / more abstract level than the AST. This includes information such as
the resolved type of each expression, the resolved overload of a builtin
function call, and the module scoped variables used by each function.
Semantic information is generated by the `Resolver` when the `Program`
is built from a `ProgramBuilder`.
The `sem::Info` class holds a map of `ast::Node`s to `sem::Node`s.
This map is **many-to-one** - i.e. while a AST node might have a single
corresponding semantic node, the reverse may not be true. For example:
many `ast::IdentifierExpression` nodes may map to a single `sem::Variable`,
and so the `sem::Variable` does not have a single corresponding
`ast::Node`.
Unlike `ast::Node`s, semantic nodes may not necessarily form a directed acyclic
graph, and the semantic graph may contain diamonds.
## Symbols
Symbols represent a unique string identifier in the source program. These string
identifiers are transformed into symbols within the `Reader`s.
During the Writer phase, symbols may be emitted as strings using a `Namer`.
A `Namer` may output the symbol in any form that preserves the uniqueness of
that symbol.
## Resolver
The `Resolver` will automatically run when a `Program` is built.
A `Resolver` creates the `Program`s semantic information by analyzing the
`Program`s AST and type information.
The `Resolver` will validate to make sure the generated `Program` is
semantically valid.
## Program
A `Program` holds an immutable version of the information from the
`ProgramBuilder` along with semantic information generated by the
`Resolver`.
Like `ProgramBuilder`, `Program::IsValid()` may be called to ensure the AST is
structurally correct and semantically valid, and that the `Resolver` did not
report any errors.
Unlike the `ProgramBuilder`, a `Program` is fully immutable, and is part of the
public Tint API. The immutable nature of `Program`s make these entirely safe
to share between multiple threads without the use of synchronization primitives.
## Inspector
The inspectors job is to go through the `Program` and pull out various pieces of
information. The information may be used to pass information into the downstream
compilers (things like specialization constants) or may be used to pass into
transforms to update the AST before generating the resulting code.
The input `Program` to the inspector must be valid (pass validation).
## Transforms
There maybe various transforms we want to run over the `Program`.
This is for things like Vertex Pulling or Robust Buffer Access.
A transform operates by cloning the input `Program` into a new `ProgramBuilder`,
applying the required changes, and then finally building and returning a new
output `Program`. As the resolver is always run when a `Program` is built,
Transforms will always emit a `Program` with semantic information.
The input `Program` to a transform must be valid (pass validation).
If the input `Program` of a transform is valid then the transform must guarantee
that the output program is also valid.
## Writers
A writer is responsible for writing the `Program` in the target shader language.
The input `Program` to a writer must be valid (pass validation).

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# Compound Statements
Compound statements are statements that can hold other statements.
This document maps the WGSL compound statements to their semantic tree representations.
## if statement
WGSL:
```
if (condition_a) {
statement_a;
} else if (condition_b) {
statement_b;
} else {
statement_c;
}
```
Semantic tree:
```
sem::IfStatement {
condition_a
sem::BlockStatement {
statement_a
}
sem::ElseStatement {
condition_b
sem::BlockStatement {
statement_b
}
}
sem::ElseStatement {
sem::BlockStatement {
statement_c
}
}
}
```
## for loop
WGSL:
```
for (initializer; condition; continuing) {
statement;
}
```
Semantic tree:
```
sem::ForLoopStatement {
sem::Statement initializer
sem::Expression condition
sem::Statement continuing
sem::LoopBlockStatement {
sem::Statement statement
}
}
```
## loop
WGSL:
```
loop (condition) {
statement_a;
continuing {
statement_b;
}
}
```
Semantic tree:
```
sem::LoopStatement {
sem::Expression condition
sem::LoopBlockStatement {
sem::Statement statement_a
sem::LoopContinuingBlockStatement {
sem::Statement statement_b
}
}
}
```
## switch statement
WGSL:
```
switch (condition) {
case literal_a, literal_b: {
statement_a;
}
default {
statement_b;
}
}
```
Semantic tree:
```
sem::SwitchStatement {
sem::Expression condition
sem::CaseStatement {
sem::BlockStatement {
sem::Statement statement_a
}
}
sem::CaseStatement {
sem::BlockStatement {
sem::Statement statement_b
}
}
}
```

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# Generating and viewing Tint code-coverage
Requirements:
* Host running Linux or macOS
* Clang toolchain on the `PATH` environment variable
## Building Tint with coverage generation enabled
Follow the steps [to build Tint with CMake](../README.md), but include the additional `-DTINT_EMIT_COVERAGE=1` CMake flag.
## Generate coverage information
Use the `<tint>/tools/tint-generate-coverage` script to run the tint executable or unit tests and generate the coverage information.
The script takes the executable to invoke as the first command line argument, followed by additional arguments to pass to the executable.
For example, to see the code coverage for all unit tests, run:
`<tint>/tools/tint-generate-coverage <build>/tint_unittests --gtest_brief`
The script will emit two files at the root of the tint directory:
* `coverage.summary` - A text file giving a coverage summary for all Tint source files.
* `lcov.info` - A binary coverage file that can be consumed with the [VSCode Coverage Gutters](https://marketplace.visualstudio.com/items?itemName=ryanluker.vscode-coverage-gutters) extension.

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# Tint diagnostic style guide
This guide provides a set of best practices when writing code that emits
diagnostic messages in Tint. These diagnostics are messages presented to the
user in case of error or warning.
The goal of this document is to have our diagnostic messages be clear and
understandable to our users, so that problems are easy to fix, and to try and
keep a consistent style.
## Message style
* Start diagnostic messages with a lower-case letter
* Try to keep the message to a single sentence, if possible
* Do not end the message with punctuation (full stop, exclamation mark, etc)
**Don't:**
```
shader.wgsl:7:1 error: Cannot take the address of expression.
```
**Do:**
```
shader.wgsl:7:1 error: cannot take the address of expression
```
**Justification:**
Succinct messages are more important than grammatical correctness. \
This style matches the style found in most other compilers.
## Prefer to use a `Source` location instead of quoting the code in the message
**Don't:**
```
shader.wgsl:5:7 error: cannot multiply 'expr_a * expr_b' with types i32 and f32
var res : f32 = expr_a * expr_b
^^^^^^^^^^^^^^^
```
**Do:**
```
shader.wgsl:5:7 error: cannot multiply types i32 and f32
var res : f32 = expr_a * expr_b
^^^^^^^^^^^^^^^
```
**Justification:**
The highlighted line provides even more contextual information than the quoted
source, and duplicating this information doesn't provide any more help to the
developer. \
Quoting single word identifiers or keywords from the source is not discouraged.
## Use `note` diagnostics for providing additional links to relevant code
**Don't:**
```
shader.wgsl:5:11 error: type cannot be used in storage class 'storage' as it is non-host-shareable
cond : bool;
^^^^
```
**Do:**
```
shader.wgsl:5:11 error: type cannot be used in storage class 'storage' as it is non-host-shareable
cond : bool;
^^^^
shader.wgsl:8:4 note: while instantiating variable 'StorageBuffer'
var<storage> sb : StorageBuffer;
^^
```
**Justification:**
To properly understand some diagnostics requires looking at more than a single
line. \
Multi-source links can greatly reduce the time it takes to properly
understand a diagnostic message. \
This is especially important for diagnostics raised from complex whole-program
analysis, but can also greatly aid simple diagnostics like symbol collision errors.
## Use simple terminology
**Don't:**
```
shader.wgsl:7:1 error: the originating variable of the left-hand side of an assignment expression must not be declared with read access control.
```
**Do:**
```
shader.wgsl:7:1 error: cannot assign to variable with read access control
x.y = 1;
^^^^^^^
shader.wgsl:2:8 note: read access control declared here
var<storage, read> x : i32;
^^^^
```
**Justification:**
Diagnostics will be read by Web developers who may not be native English
speakers and are unlikely to be familiar with WGSL specification terminology.
Too much technical jargon can be intimidating and confusing. \
Diagnostics should give enough information to explain what's wrong, and most
importantly, give enough information so that a fix actionable.
**Caution:** Be careful to not over simplify. Use the specification terminology
if there's potential ambiguity by not including it.

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# Tint end-to-end tests
This repo contains a large number of end-to-end tests at `<tint>/test`.
## Test files
Test input files have either the `.wgsl`, `.spv` or `.spvasm` file extension.
Each test input file is tested against each of the Tint backends. There are `<number-of-input-files>` &times; `<number-of-tint-backends>` tests that are performed on an unfiltered end-to-end test run.
Each backend test can have an **expectation file**. This expectation file sits next to the input file, with a `<input-file>.expected.<format>` extension. For example the test `test/foo.wgsl` would have the HLSL expectation file `test/foo.wgsl.expected.hlsl`.
An expectation file contains the expected output of Tint, when passed the input file for the given backend.
If the first line of the expectation file starts `SKIP`, then the test will be skipped instead of failing the end-to-end test run. It is good practice to include after the `SKIP` a reason for why the test is being skipped, along with any additional details, such as compiler error messages.
## Running
To run the end-to-end tests use the `<tint>/test/test-all.sh` script, passing the path to the tint executable as the first command line argument.
You can pass `--help` to see the full list of command line flags.\
The most commonly used flags are:
| flag | description |
|----------------------|-------------|
|`--filter` | Filters the testing to subset of the tests. The filter argument is a glob pattern that can include `*` for any substring of a file or directory, and `**` for any number of directories.<br>Example: `--filter 'expressions/**/i32.wgsl'` will test all the `i32.wgsl` expression tests.
|`--format` | Filters the tests to the particular backend.<br>Example: `--format hlsl` will just test the HLSL backend.
|`--generate-expected` | Generate expectation files for the tests that previously had no expectation file, or were marked as `SKIP` but now pass.
|`--generate-skip` | Generate `SKIP` expectation files for tests that are not currently passing.
## Authoring guidelines
Each test should be as small as possible, and focused on the particular feature being tested.
Use sub-directories whenever possible to group similar tests, and try to keep the pattern of directories as consistent as possible between different tests. This helps filter tests using the `--filter` glob patterns.

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# Experimental extensions
Sometimes a language feature proposed for WGSL requires experiementation
to prove its worth. Tint needs to support these, in general to enable
that experimentation.
The steps for doing so are:
1. Choose a name for the feature, to be used in an `enable` directive.
An experimental extension should use prefix of `google_experimental_`
Example:
enable google_experimental_f16;
2. Write down what the feature is supposed to mean.
This informs the Tint implementation, and tells shader authors what
has changed.
Ideally, this will take the form of one of the following:
- A PR against the WGSL spec.
- A description of what the contents of that PR would be, committed
as a document in this Tint repository.
3. File a tracking bug for adding the feature.
Note: Should the Tint repo have a label for experimental features?
4. File a tracking bug for removing the feature or converting it to
non-experimental.
5. Write a plan for removal of the experiment.
- Ideally, this plan is committed to this repository, especially the
description of public activities and commitments. However, we recognize
that some internal goals or metrics may be sensitive, and can be hidden.
- The plan is about process, not technical details. It should include:
- Who is the point of contact for this feature? The point of contact
is responsible when the feature causes an issue or gets in the way.
- What is your target date for declaring the experiment a success or
failure. In Chrome an experiment must be shipped or removed, in
finite time.
- What experience are you hoping to gain? Do you have target metrics?
- What approvals, if any, do you need from W3C? What is your plan to
present your case to W3C?
- The bug tracking removal of the experiment.

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# Tint changes during Origin Trial
## Changes for M102
### New Features
* Parentheses are no longer required around expressions for if and switch statements [tint:1424](crbug.com/tint/1424)
* Compound assignment statements are now supported. [tint:1325](https://crbug.com/tint/1325)
* The colon in case statements is now optional. [tint:1485](crbug.com/tint/1485)
### Breaking changes
* Struct members are now separated by commas. [tint:1475](crbug.com/tint/1475)
* The `@block` attribute has been removed. [tint:1324](crbug.com/tint/1324)
* The `@stride` attribute has been removed. [tint:1381](crbug.com/tint/1381)
* Attributes using `[[attribute]]` syntax are no longer supported. [tint:1382](crbug.com/tint/1382)
* The `elseif` keyword is no longer supported. [tint:1289](crbug.com/tint/1289)
### Deprecated Features
* The `smoothStep()` builtin has been renamed to `smoothstep()`. [tint:1483](crbug.com/tint/1483)
## Changes for M101
### New Features
* Tint now supports unicode identifiers. [tint:1437](crbug.com/tint/1437)
### Breaking changes
* The `isNan()`, `isInf()`, `isFinite()`, and `isNormal()` builtins have been removed. [tint:1312](https://crbug.com/tint/1312)
## Changes for M100
### Breaking changes
* The `@interpolate(flat)` attribute must now be specified on integral user-defined IO. [tint:1224](crbug.com/tint/1224)
* The `ignore()` intrinsic has been removed. Use phoney-assignment instead: `ignore(expr);` -> `_ = expr;`.
* `break` statements in `continuing` blocks are now correctly validated.
### New Features
* Module-scope declarations can now be declared in any order. [tint:1266](crbug.com/tint/1266)
* The `override` keyword and `@id()` attribute for pipeline-overridable constants are now supported, replacing the `@override` attribute. [tint:1403](crbug.com/tint/1403)
## Changes for M99
### Breaking changes
Obviously infinite loops (no condition, no break) are now a validation error.
### Deprecated Features
The following features have been deprecated and will be removed in M102:
* The `[[block]]` attribute has been deprecated. [tint:1324](https://crbug.com/tint/1324)
* Attributes now use the `@decoration` syntax instead of the `[[decoration]]` syntax. [tint:1382](https://crbug.com/tint/1382)
* `elseif` has been replaced with `else if`. [tint:1289](https://crbug.com/tint/1289)
* The `[[stride]]` attribute has been deprecated. [tint:1381](https://crbug.com/tint/1381)
### New Features
* Vector and matrix element type can now be inferred from constructor argument types. [tint:1334](https://crbug.com/tint/1334)
* Added builtins `degrees()` and `radians()` for converting between degrees and radians. [tint:1329](https://crbug.com/tint/1329)
* `let` arrays and matrices can now be dynamically indexed. [tint:1352](https://crbug.com/tint/1352)
* Storage and Uniform buffer types no longer have to be structures. [tint:1372](crbug.com/tint/1372)
* A struct declaration does not have to be followed by a semicolon. [tint:1380](crbug.com/tint/1380)
### Fixes
* Fixed an issue where for-loops that contain array or structure constructors in the loop initializer statements, condition expressions or continuing statements could fail to compile. [tint:1364](https://crbug.com/tint/1364)
## Changes for M98
### Breaking Changes
* Taking the address of a vector component is no longer allowed.
* Module-scope declarations can no longer alias a builtin name. [tint:1318](https://crbug.com/tint/1318)
* It is now an error to call a function either directly or transitively, from a loop continuing block, that uses `discard`. [tint:1302](https://crbug.com/tint/1302)
### Deprecated Features
* The `isNan()`, `isInf()`, `isFinite()` and `isNormal()` builtins has been deprecated and will be removed in M101. [tint:1312](https://crbug.com/tint/1312)
### New Features
* New texture gather builtins: `textureGather()` and `textureGatherCompare()`. [tint:1330](https://crbug.com/tint/1330)
* Shadowing is now fully supported. [tint:819](https://crbug.com/tint/819)
* The `dot()` builtin now supports integer vector types.
* Identifiers can now start with a single leading underscore. [tint:1292](https://crbug.com/tint/1292)
* Control flow analysis has been improved, and functions no longer need to `return` if the statement is unreachable. [tint:1302](https://crbug.com/tint/1302)
* Unreachable statements now produce a warning instead of an error, to allow WGSL code to be updated to the new analysis behavior. These warnings may become errors in the future [gpuweb#2378](https://github.com/gpuweb/gpuweb/issues/2378)
### Fixes
* Fixed an issue where using a module-scoped `let` in a `workgroup_size` may result in a compilation error. [tint:1320](https://crbug.com/tint/1320)
## Changes for M97
### Breaking Changes
* Deprecated `modf()` and `frexp()` builtin overloads that take a pointer second parameter have been removed.
* Deprecated texture builtin functions that accepted a `read` access controlled storage texture have been removed.
* Storage textures must now only use the `write` access control.
### Deprecated Features
* The `ignore()` builtin has been replaced with phony-assignment. [gpuweb#2127](https://github.com/gpuweb/gpuweb/pull/2127)
### New Features
* `any()` and `all()` now support a `bool` parameter. These simply return the passed argument. [tint:1253](https://crbug.com/tint/1253)
* Call statements may now include functions that return a value (`ignore()` is no longer needed).
* The `interpolate(flat)` attribute can now be specified on integral user-defined IO. It will eventually become an error to define integral user-defined IO without this attribute.
* Matrix construction from scalar element values is now supported.
### Fixes
* Swizzling of `vec3` types in `storage` and `uniform` buffers has been fixed for Metal 1.x. [tint:1249](https://crbug.com/tint/1249)
* Calling a function that returns an unused value no longer produces an FXC compilation error. [tint:1259](https://crbug.com/tint/1259)
* `abs()` fixed for unsigned integers on SPIR-V backend
## Changes for M95
### New Features
* The size of an array can now be defined using a non-overridable module-scope constant
* The `num_workgroups` builtin is now supported.
### Fixes
* Hex floats: now correctly errors when the magnitude is non-zero, and the exponent would cause overflow. [tint:1150](https://crbug.com/tint/1150), [tint:1166](https://crbug.com/tint/1166)
* Identifiers beginning with an underscore are now correctly rejected. [tint:1179](https://crbug.com/tint/1179)

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# SPIR-V translation of shader input and output variables
WGSL [MR 1315](https://github.com/gpuweb/gpuweb/issues/1315) changed WGSL so
that pipeline inputs and outputs are handled similar to HLSL:
- Shader pipeline inputs are the WGSL entry point function arguments.
- Shader pipeline outputs are the WGSL entry point return value.
Note: In both cases, a struct may be used to pack multiple values together.
In that case, I/O specific attributes appear on struct members at the struct declaration.
Resource variables, e.g. buffers, samplers, and textures, are still declared
as variables at module scope.
## Vulkan SPIR-V today
SPIR-V for Vulkan models inputs and outputs as module-scope variables in
the Input and Output storage classes, respectively.
The `OpEntryPoint` instruction has a list of module-scope variables that must
be a superset of all the input and output variables that are statically
accessed in the shader call tree.
From SPIR-V 1.4 onward, all interface variables that might be statically accessed
must appear on that list.
So that includes all resource variables that might be statically accessed
by the shader call tree.
## Translation scheme for SPIR-V to WGSL
A translation scheme from SPIR-V to WGSL is as follows:
Each SPIR-V entry point maps to a set of Private variables proxying the
inputs and outputs, and two functions:
- An inner function with no arguments or return values, and whose body
is the same as the original SPIR-V entry point.
- Original input variables are mapped to pseudo-in Private variables
with the same store types, but no other attributes or properties copied.
In Vulkan, Input variables don't have initalizers.
- Original output variables are mapped to pseudo-out Private variables
with the same store types and optional initializer, but no other attributes
or properties are copied.
- A wrapper entry point function whose arguments correspond in type, location
and builtin attributes the original input variables, and whose return type is
a structure containing members correspond in type, location, and builtin
attributes to the original output variables.
The body of the wrapper function the following phases:
- Copy formal parameter values into pseudo-in variables.
- Insert a bitcast if the WGSL builtin variable has different signedness
from the SPIR-V declared type.
- Execute the inner function.
- Copy pseudo-out variables into the return structure.
- Insert a bitcast if the WGSL builtin variable has different signedness
from the SPIR-V declared type.
- Return the return structure.
- Replace uses of the the original input/output variables to the pseudo-in and
pseudo-out variables, respectively.
- Remap pointer-to-Input with pointer-to-Private
- Remap pointer-to-Output with pointer-to-Private
We are not concerned with the cost of extra copying input/output values.
First, the pipeline inputs/outputs tend to be small.
Second, we expect the backend compiler in the driver will be able to see
through the copying and optimize the result.
### Example
```glsl
#version 450
layout(location = 0) out vec4 frag_colour;
layout(location = 0) in vec4 the_colour;
void bar() {
frag_colour = the_colour;
}
void main() {
bar();
}
```
Current translation, through SPIR-V, SPIR-V reader, WGSL writer:
```groovy
@location(0) var<out> frag_colour : vec4<f32>;
@location(0) var<in> the_colour : vec4<f32>;
fn bar_() -> void {
const x_14 : vec4<f32> = the_colour;
frag_colour = x_14;
return;
}
@stage(fragment)
fn main() -> void {
bar_();
return;
}
```
Proposed translation, through SPIR-V, SPIR-V reader, WGSL writer:
```groovy
// 'in' variables are now 'private'.
var<private> frag_colour : vec4<f32>;
var<private> the_colour : vec4<f32>;
fn bar_() -> void {
// Accesses to the module-scope variables do not change.
// This is a big simplifying advantage.
const x_14 : vec4<f32> = the_colour;
frag_colour = x_14;
return;
}
fn main_inner() -> void {
bar_();
return;
}
// Declare a structure type to collect the return values.
struct main_result_type {
@location(0) frag_color : vec4<f32>;
};
@stage(fragment)
fn main(
// 'in' variables are entry point parameters
@location(0) the_color_arg : vec4<f32>
) -> main_result_type {
// Save 'in' arguments to 'private' variables.
the_color = the_color_arg;
// Initialize 'out' variables.
// Use the zero value, since no initializer was specified.
frag_color = vec4<f32>();
// Invoke the original entry point.
main_inner();
// Collect outputs into a structure and return it.
var result : main_outer_result_type;
result.frag_color = frag_color;
return result;
}
```
Alternately, we could emit the body of the original entry point at
the point of invocation.
However that is more complex because the original entry point function
may return from multiple locations, and we would like to have only
a single exit path to construct and return the result value.
### Handling fragment discard
In SPIR-V `OpKill` causes immediate termination of the shader.
Is the shader obligated to write its outputs when `OpKill` is executed?
The Vulkan fragment operations are as follows:
(see [6. Fragment operations](https://www.khronos.org/registry/vulkan/specs/1.2/html/vkspec.html#fragops)).
* Scissor test
* Sample mask test
* Fragment shading
* Multisample coverage
* Depth bounds test
* Stencil test
* Depth test
* Sample counting
* Coverage reduction
After that, the fragment results are used to update output attachments, including
colour, depth, and stencil attachments.
Vulkan says:
> If a fragment operation results in all bits of the coverage mask being 0,
> the fragment is discarded, and no further operations are performed.
> Fragments can also be programmatically discarded in a fragment shader by executing one of
>
> OpKill.
I interpret this to mean that the outputs of a discarded fragment are ignored.
Therefore, `OpKill` does not require us to modify the basic scheme from the previous
section.
The `OpDemoteToHelperInvocationEXT`
instruction is an alternative way to throw away a fragment, but which
does not immediately terminate execution of the invocation.
It is introduced in the [`SPV_EXT_demote_to_helper_invocation](http://htmlpreview.github.io/?https://github.com/KhronosGroup/SPIRV-Registry/blob/master/extensions/EXT/SPV_EXT_demote_to_helper_invocation.html)
extension. WGSL does not have this feature, but we expect it will be introduced by a
future WGSL extension. The same analysis applies to demote-to-helper. When introduced,
it will not affect translation of pipeline outputs.
### Handling depth-replacing mode
A Vulkan fragment shader must write to the fragment depth builtin if and only if it
has a `DepthReplacing` execution mode. Otherwise behaviour is undefined.
We will ignore the case where the SPIR-V shader writes to the `FragDepth` builtin
and then discards the fragment.
This is justified because "no further operations" are performed by the pipeline
after the fragment is discarded, and that includes writing to depth output attachments.
Assuming the shader is valid, no special translation is required.
### Handling output sample mask
By the same reasoning as for depth-replacing, it is ok to incidentally not write
to the sample-mask builtin variable when the fragment is discarded.
### Handling clip distance and cull distance
Most builtin variables are scalars or vectors.
However, the `ClipDistance` and `CullDistance` builtin variables are arrays of 32-bit float values.
Each entry defines a clip half-plane (respectively cull half-plane)
A Vulkan implementation must support array sizes of up to 8 elements.
How prevalent are shaders that use these features?
These variables are supported when Vulkan features `shaderClipDistance` and `shaderCullDistance`
are supported.
According to gpuinfo.org as of this writing, those
Vulkan features appear to be nearly universally supported on Windows devices (>99%),
but by only 70% on Android.
It appears that Qualcomm devices support them, but Mali devices do not (e.g. Mali-G77).
The proposed translation scheme forces a copy of each array from private
variables into the return value of a vertex shader, or into a private
variable of a fragment shader.
In addition to the register pressure, there may be a performance degradation
due to the bulk copying of data.
We think this is an acceptable tradeoff for the gain in usability and
consistency with other pipeline inputs and outputs.
## Translation scheme for WGSL AST to SPIR-V
To translate from the WGSL AST to SPIR-V, do the following:
- Each entry point formal parameter is mapped to a SPIR-V `Input` variable.
- Struct and array inputs may have to be broken down into individual variables.
- The return of the entry point is broken down into fields, with one
`Output` variable per field.
- In the above, builtins must be separated from user attributes.
- Builtin attributes are moved to the corresponding variable.
- Location and interpolation attributes are moved to the corresponding
variables.
- This translation relies on the fact that pipeline inputs and pipeline
outputs are IO-shareable types. IO-shareable types are always storable,
and can be the store type of input/output variables.
- Input function parameters will be automatically initialized by the system
as part of setting up the pipeline inputs to the entry point.
- Replace each return statement in the entry point with a code sequence
which writes the return value components to the synthesized output variables,
and then executes an `OpReturn` (without value).
This translation is sufficient even for fragment shaders with discard.
In that case, outputs will be ignored because downstream pipeline
operations will not be performed.
This is the same rationale as for translation from SPIR-V to WGSL AST.

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# SPIR-V translation of WGSL pointers and references
WGSL was updated to have two kinds of memory views: pointers and references.
See https://github.com/gpuweb/gpuweb/pull/1569
In summary:
* Reference types are never explicitly mentioned in WGSL source.
* A use of a variable is a value of reference type corresponding
to the reference memory view of the storage allocated for the
variable.
* Let-declared constants can be of pointer type, but not reference
type.
* Function parameter can be of pointer type, but not reference type.
* A variable's store type is never a pointer type, and never a
reference type.
* The "Load Rule" allows a reference to decay to the underlying
store type, by issuing a load of the value in the underlying memory.
* For an assignment:
* The right-hand side evaluates to a non-reference type (atomic-free
plain type).
* The left-hand side evaluates to a reference type, whose store
type is the same as the result of evaluating the right hand side.
* The address-of (unary `&`) operator converts a reference to a
pointer.
* The dereference (unary `*`) operator converts a pointer to a
reference.
TODO: Passing textures and samplers to helper functions might be
done by "handler value", or by pointer-to-handle.
## Writing SPIR-V from WGSL
The distinction in WGSL between reference and pointer disappears
at the SPIR-V level. Both types map into pointer types in SPIR-V.
To translate a valid WGSL program to SPIR-V:
* The dereference operator (unary `*`) is the identity operation.
* The address-of operator (unary `&`) is the identity operation.
* Assignment maps to OpStore.
* The Load Rule translates to OpLoad.
## Reading SPIR-V to create WGSL
The main changes to the SPIR-V reader are:
* When translating a SPIR-V pointer expression, track whether the
corresponding WGSL expression is of corresponding WGSL pointer
type or correspoinding WGSL type.
* Insert dereference (unary-`*`) or address-of (unary-`&`) operators
as needed to generate valid WGSL expressions.
The choices can be made deterministic, as described below.
The SPIR-V reader only supports baseline functionality in Vulkan.
Therefore we assume no VariablePointers or VariablePointersStorageBuffer
capabilities. All pointers are
[SPIR-V logical pointers](https://www.khronos.org/registry/spir-v/specs/unified1/SPIRV.html#LogicalPointerType).
The [SPIR-V Universal Validation Rules](https://www.khronos.org/registry/spir-v/specs/unified1/SPIRV.html#_universal_validation_rules)
specify where logical pointers can appear as results of instructions
or operands of instructions.
Each SPIR-V pointer result expression is a logical pointer, and
therefore is one of:
* OpVariable: map to the reference type.
* OpFunctionParameter: map to the pointer type.
* OpCopyObject:
* When these only have one use, then these often fold away.
Otherwise, they map to a a let-declared constant.
* Map to the pointer type.
* OpAccessChain, OpInBoundsAccessChain:
* This could map to either pointer or reference, and adjustments
in other areas could make it work. However, we recommend mapping
this to the reference type.
* OpImageTexelPointer is not supported in WGSL.
It is used to get a pointer into a storage texture, for use with
atomic instructions. But image atomics is not supported in
WebGPU/WGSL.
Each SPIR-V pointer operand is also a logical pointer, and is an
operand to one of:
* OpLoad Pointer operand:
* Map to reference, inserting a dereference operator if needed.
* OpStore Pointer operand:
* Map to reference, inserting a dereference operator if needed.
* OpStore Pointer operand:
* OpAccessChain, OpInBoundsAccessChain Base operand:
* WGSL array-access and subfield access only works on references.
* [Gpuweb issue 1530](https://github.com/gpuweb/gpuweb/issues/1530)
is filed to allow those operations to work on pointers.
* Map to reference, inserting a dereference operator if needed.
* OpFunctionCall function argument pointer operands
* Function operands can't be references.
* Map to pointer, inserting an address-of operator if needed.
* OpAtomic instruction Pointer operand
* These map to WGSL atomic builtins.
* Map to pointer, inserting an address-of operator if needed.
* Note: As of this writing, the atomic instructions are not supported
by the SPIR-V reader.
* OpCopyObject source operand
* This could have been mapped either way, but it's easiest to
map to pointer, to match the choice for OpCopyObject result type.
* Map to pointer, inserting an address-of operator if needed.
* OpCopyMemory, source and destination operands
* This acts as an assignment.
* Map both source and destination to reference, inserting dereference
operators if needed.
* Note: As of this writing, OpCopyMemory is not supported by the
SPIR-V reader.
* Extended instruction set instructions Modf and Frexp
* These map to builtins.
* Map the pointer operand to pointer, inserting an address-of
operator if needed.

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# Tint style guide
* Generally, follow the [Chromium style guide for C++](https://chromium.googlesource.com/chromium/src/+/HEAD/styleguide/c++/c++.md)
which itself is built on the [Google C++ style guide](https://google.github.io/styleguide/cppguide.html).
* Overall try to use the same style and convention as code around your change.
* Code must be formatted. Use `clang-format` with the provided [.clang-format](../.clang-format)
file. The `tools/format` script runs the formatter.
* Code should not have linting errors.
The `tools/lint` script runs the linter. So does `git cl upload`.
* Do not use C++ exceptions
* Do not use C++ RTTI.
Instead, use `tint::Castable::As<T>()` from
[src/castable.h](../src/castable.h)
* Generally, avoid `assert`. Instead, issue a [diagnostic](../src/diagnostic.h)
and fail gracefully, possibly by returning an error sentinel value.
Code that should not be reachable should call `TINT_UNREACHABLE` macro
and other internal error conditions should call the `TINT_ICE` macro.
See [src/debug.h](../src/debug.h)
* Use `type` as part of a name only when the name refers to a type
in WGSL or another shader language processed by Tint. If the concept you are
trying to name is about distinguishing between alternatives, use `kind` instead.
## Compiler support
Tint requires C++17.
Tint uses the Chromium build system and will stay synchronized with that system.
Compiler configurations beyond that baseline is on a best-effort basis.
We strive to support recent GCC and MSVC compilers.
## Test code
We might relax the above rules rules for test code, since test code
shouldn't ship to users.
However, test code should still be readable and maintainable.
For test code, the tradeoff between readability and maintainability
and other factors is weighted even more strongly toward readability
and maintainability.

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# Translations
This document attempts to document how WGSL translates into the various backends
for the cases where the translation is not a direct mapping.
# Access Control
## HLSL
* ReadOnly -> `ByteAddressBuffer`
* ReadWrite -> `RWByteAddressBuffer`
## MSL
* ReadOnly -> `const`
## SPIR-V
There are two ways this can be achieved in SPIR-V. Either the variable can be
decorated with `NonWritable` or each member of the struct can be decorated with
`NonWritable`. We chose to go the struct member route.
* The read-only becomes part of the type in this case. Otherwise, you are
treating the readonly type information as part of the variable which is
confusing.
* Treating the readonly as part of the variable means we should be
deduplicating the types behind the access control, which causes confusing
with the type_names and various tracking systems within Tint.
# Builtin Decorations
| Name | SPIR-V | MSL | HLSL |
|------|--------|-----|------|
| position | SpvBuiltInPosition |position | SV_Position |
| vertex_index | SpvBuiltInVertexIndex |vertex_id | SV_VertexID |
| instance_index | SpvBuiltInInstanceIndex | instance_id| SV_InstanceID |
| front_facing | SpvBuiltInFrontFacing | front_facing | SV_IsFrontFacing |
| frag_coord | SpvBuiltInFragCoord | position | SV_Position |
| frag_depth | SpvBuiltInFragDepth | depth(any) | SV_Depth |
| local_invocation_id | SpvBuiltInLocalInvocationId | thread_position_in_threadgroup | SV_GroupThreadID |
| local_invocation_index | SpvBuiltInLocalInvocationIndex | thread_index_in_threadgroup | SV_GroupIndex |
| global_invocation_id | SpvBuiltInGlobalInvocationId | thread_position_in_grid | SV_DispatchThreadID |
# Builtins Methods
| Name | SPIR-V | MSL | HLSL |
| ------|--------|-----|------ |
| abs | GLSLstd450FAbs or GLSLstd450SAbs| fabs or abs | abs |
| acos | GLSLstd450Acos | acos | acos |
| all | SpvOpAll | all | all |
| any | SpvOpAny | any | any |
| arrayLength | SpvOpArrayLength | | |
| asin | GLSLstd450Asin | asin | asin |
| atan | GLSLstd450Atan | atan | atan |
| atan2 | GLSLstd450Atan2| atan2 | atan2 |
| ceil | GLSLstd450Ceil| ceil | ceil |
| clamp | GLSLstd450NClamp or GLSLstd450UClamp or GLSLstd450SClamp| clamp | clamp |
| cos | GLSLstd450Cos | cos | cos |
| cosh | GLSLstd450Cosh | cosh | cosh |
| countOneBits | SpvOpBitCount | popcount | countbits |
| cross | GLSLstd450Cross | cross | cross |
| determinant | GLSLstd450Determinant | determinant | determinant |
| distance | GLSLstd450Distance | distance | distance |
| dot | SpOpDot | dot | dot |
| dpdx | SpvOpDPdx | dpdx | ddx |
| dpdxCoarse | SpvOpDPdxCoarse | dpdx | ddx_coarse |
| dpdxFine | SpvOpDPdxFine | dpdx | ddx_fine |
| dpdy | SpvOpDPdy | dpdy | ddy |
| dpdyCoarse | SpvOpDPdyCoarse | dpdy | ddy_coarse |
| dpdyFine | SpvOpDPdyFine | dpdy | ddy_fine |
| exp | GLSLstd450Exp | exp | exp |
| exp2 | GLSLstd450Exp2 | exp2 | exp2 |
| faceForward | GLSLstd450FaceForward | faceforward | faceforward |
| floor | GLSLstd450Floor | floor | floor |
| fma | GLSLstd450Fma | fma | fma |
| fract | GLSLstd450Fract | fract | frac |
| frexp | GLSLstd450Frexp | | |
| fwidth | SpvOpFwidth | fwidth | fwidth |
| fwidthCoarse | SpvOpFwidthCoarse | fwidth | fwidth |
| fwidthFine | SpvOpFwidthFine | fwidth | fwidth |
| inverseSqrt | GLSLstd450InverseSqrt | rsqrt | rsqrt |
| ldexp | GLSLstd450Ldexp | | |
| length | GLSLstd450Length | length | length |
| log | GLSLstd450Log | log | log |
| log2 | GLSLstd450Log2 | log2 | log2 |
| max | GLSLstd450NMax or GLSLstd450SMax or GLSLstd450UMax | fmax or max | max |
| min | GLSLstd450NMin or GLSLstd450SMin or GLSLstd450UMin | fmin or min | min |
| mix | GLSLstd450FMix | mix | mix |
| modf | GLSLstd450Modf | | |
| normalize | GLSLstd450Normalize | normalize | normalize |
| pow | GLSLstd450Pow | pow | pow |
| reflect | GLSLstd450Reflect | reflect | reflect |
| reverseBits | SpvOpBitReverse | reverse_bits | reversebits |
| round | GLSLstd450Round | round | round |
| select | SpvOpSelect | select | |
| sign | GLSLstd450FSign | sign | sign |
| sin | GLSLstd450Sin | sin | sin |
| sinh | GLSLstd450Sinh | sinh | sinh |
| smoothStep | GLSLstd450SmoothStep | smoothstep | smoothstep |
| sqrt | GLSLstd450Sqrt | sqrt | sqrt |
| step | GLSLstd450Step | step | step |
| tan | GLSLstd450Tan | tan | tan |
| tanh | GLSLstd450Tanh | tanh | tanh |
| trunc | GLSLstd450Trunc | trunc | trunc |
# Types
## Sampler Types
| WGSL | SPIR-V | MSL | HLSL |
|------|--------|-----|------|
| sampler | OpTypeSampler | sampler | SamplerState |
| sampler_comparison | OpTypeSampler | sampler | SamplerComparisonState |
## Texture Types
| WGSL | SPIR-V | MSL | HLSL |
|------|--------|-----|------|
| texture_1d&lt;type&gt; | OpTypeImage 1D Sampled=1 | texture1d&lt;type, access::sample&gt; | Texture1D |
| texture_2d&lt;type&gt; | OpTypeImage 2D Sampled=1 | texture2d&lt;type, access::sample&gt; | Texture2D |
| texture_2d_array&lt;type&gt; | OpTypeImage 2D Arrayed=1 Sampled=1 | texture2d_array&lt;type, access::sample&gt; | Texture2DArray |
| texture_3d&lt;type&gt; | OpTypeImage 3D Sampled=1 | texture3d&lt;type, access::sample&gt; | Texture3D |
| texture_cube&lt;type&gt; | OpTypeImage Cube Sampled=1 | texturecube&lt;type, access::sample&gt; | TextureCube |
| texture_cube_array&lt;type&gt; | OpTypeImage Cube Arrayed=1 Sampled=1 | texturecube_array&lt;type, access::sample&gt; | TextureCubeArray |
| | | |
| texture_multisampled_2d&lt;type&gt; | OpTypeImage 2D MS=1 Sampled=1 | texture2d_ms&lt;type, access::sample&gt; | Texture2D |
| | | |
| texture_depth_2d | OpTypeImage 2D Depth=1 Sampled=1 | depth2d&lt;float, access::sample&gt;| Texture2D |
| texture_depth_2d_array | OpTypeImage 2D Depth=1 Arrayed=1 Sampled=1 | depth2d_array&lt;float, access::sample&gt; | Texture2DArray |
| texture_depth_cube | OpTypeImage Cube Depth=1 Sampled=1 | depthcube&lt;float, access::sample&gt; | TextureCube |
| texture_depth_cube_array | OpTypeImage Cube Depth=1 Arrayed=1 Sampled=1 | depthcube_array&lt;float, access::sample&gt; | TextureCubeArray |
| texture_depth_multisampled_2d | OpTypeImage 2D Depth=1 MS=1 Sampled=1 | depth2d&lt;float, access::sample&gt;| Texture2DMSArray |
| | | |
| texture_storage_1d&lt;image_storage_type&gt; | OpTypeImage 1D Sampled=2| texture1d&lt;type, access::read&gt; | RWTexture1D |
| texture_storage_2d&lt;image_storage_type&gt; | OpTypeImage 2D Sampled=2 | texture2d&lt;type, access::read&gt; | RWTexture2D |
| texture_storage_2d_array&lt;image_storage_type&gt; | OpTypeImage 2D Arrayed=1 Sampled=2 | texture2d_array&lt;type, access::read&gt; | RWTexture2DArray |
| texture_storage_3d&lt;image_storage_type&gt; | OpTypeImage 3D Sampled=2 | texture3d&lt;type, access::read&gt; | RWTexture3D |
| | | |
| texture_storage_1d&lt;image_storage_type&gt; | OpTypeImage 1D Sampled=2 | texture1d&lt;type, access::write&gt; | RWTexture1D |
| texture_storage_2d&lt;image_storage_type&gt; | OpTypeImage 2D Sampled=1 | texture2d&lt;type, access::write&gt; | RWTexture2D |
| texture_storage_2d_array&lt;image_storage_type&gt; | OpTypeImage 2D Arrayed=1 Sampled=2 | texture2d_array&lt;type, access::write&gt; | RWTexture2DArray |
| texture_storage_3d&lt;image_storage_type&gt; | OpTypeImage 3D Sampled=2 | texture3d&lt;type, access::write&gt; | RWTexture3D|
# Short-circuting
## HLSL
TODO(dsinclair): Nested if's
## SPIR-V
TODO(dsinclair): Nested if's
# Storage classes
TODO(dsinclair): do ...
# Storage buffers
## HLSL
TODO(dsinclair): Rewriting of accessors to loads
# Loop blocks
## HLSL
TODO(dsinclair): Rewrite with bools
## MSL
TODO(dsinclair): Rewrite with bools
# Input / Output storage class
## HLSL
TODO(dsinclair): Structs and params
## MSL
TODO(dsinclair): Structs and params
# Discard
## HLSL
* `discard`
## MSL
* `discard_fragment()`
# Specialization constants
## HLSL
```
#ifndef WGSL_SPEC_CONSTANT_<id>
-- if default provided
#define WGSL_SPEC_CONSTANT_<id> default value
-- else
#error spec constant required for constant id
--
#endif
static const <type> <name> = WGSL_SPEC_CONSTANT_<id>
```
## MSL
`@function_constant(<id>)`

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef INCLUDE_TINT_TINT_H_
#define INCLUDE_TINT_TINT_H_
// TODO(tint:88): When implementing support for an install target, all of these
// headers will need to be moved to include/tint/.
#include "src/tint/ast/pipeline_stage.h"
#include "src/tint/demangler.h"
#include "src/tint/diagnostic/printer.h"
#include "src/tint/inspector/inspector.h"
#include "src/tint/reader/reader.h"
#include "src/tint/sem/type_manager.h"
#include "src/tint/transform/binding_remapper.h"
#include "src/tint/transform/first_index_offset.h"
#include "src/tint/transform/fold_trivial_single_use_lets.h"
#include "src/tint/transform/manager.h"
#include "src/tint/transform/multiplanar_external_texture.h"
#include "src/tint/transform/renamer.h"
#include "src/tint/transform/robustness.h"
#include "src/tint/transform/single_entry_point.h"
#include "src/tint/transform/vertex_pulling.h"
#include "src/tint/writer/writer.h"
#if TINT_BUILD_SPV_READER
#include "src/tint/reader/spirv/parser.h"
#endif // TINT_BUILD_SPV_READER
#if TINT_BUILD_WGSL_READER
#include "src/tint/reader/wgsl/parser.h"
#endif // TINT_BUILD_WGSL_READER
#if TINT_BUILD_SPV_WRITER
#include "spirv-tools/libspirv.hpp"
#include "src/tint/writer/spirv/generator.h"
#endif // TINT_BUILD_SPV_WRITER
#if TINT_BUILD_WGSL_WRITER
#include "src/tint/writer/wgsl/generator.h"
#endif // TINT_BUILD_WGSL_WRITER
#if TINT_BUILD_MSL_WRITER
#include "src/tint/writer/msl/generator.h"
#endif // TINT_BUILD_MSL_WRITER
#if TINT_BUILD_HLSL_WRITER
#include "src/tint/writer/hlsl/generator.h"
#endif // TINT_BUILD_HLSL_WRITER
#if TINT_BUILD_GLSL_WRITER
#include "src/tint/transform/glsl.h"
#include "src/tint/writer/glsl/generator.h"
#endif // TINT_BUILD_GLSL_WRITER
#endif // INCLUDE_TINT_TINT_H_

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#!/bin/bash
# Copyright 2021 The Tint Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -e # Fail on any error.
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd )"
ROOT_DIR="$( cd "${SCRIPT_DIR}/../.." >/dev/null 2>&1 && pwd )"
# Inside the docker VM, we clone the project to a new directory.
# We do this so that the docker script can be tested in a local development
# checkout, without having the build litter the local checkout with artifacts.
# This directory is mapped to the host temporary directory.
# Kokoro uses a '/tmpfs' root, where as most linux enviroments just have '/tmp'
if [ -d "/tmpfs" ]; then
TMP_DIR=/tmpfs
else
TMP_DIR=/tmp
fi
# --privileged is required for some sanitizer builds, as they seem to require PTRACE privileges
docker run --rm -i \
--privileged \
--volume "${ROOT_DIR}:${ROOT_DIR}" \
--volume "${TMP_DIR}/kokoro/tint:/tint" \
--volume "${KOKORO_ARTIFACTS_DIR}:/mnt/artifacts" \
--workdir "${ROOT_DIR}" \
--env SRC_DIR="/tint/src" \
--env BUILD_DIR="/tint/build" \
--env BUILD_TYPE=$BUILD_TYPE \
--env BUILD_SYSTEM=$BUILD_SYSTEM \
--env BUILD_SANITIZER=$BUILD_SANITIZER \
--env BUILD_TOOLCHAIN=$BUILD_TOOLCHAIN \
--entrypoint "${SCRIPT_DIR}/docker.sh" \
"gcr.io/shaderc-build/radial-build:latest"

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#!/bin/bash
# Copyright 2021 The Tint Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -e # Fail on any error.
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd )"
export BUILD_SYSTEM=cmake
export BUILD_TOOLCHAIN=clang
export BUILD_TYPE=Debug
export BUILD_SANITIZER=asan
${SCRIPT_DIR}/../build.sh

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# Format: //devtools/kokoro/config/proto/build.proto
build_file: "tint/kokoro/linux/cmake-clang-debug-asan/build.sh"

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#!/bin/bash
# Copyright 2021 The Tint Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -e # Fail on any error.
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd )"
export BUILD_SYSTEM=cmake
export BUILD_TOOLCHAIN=clang
export BUILD_TYPE=Debug
export BUILD_SANITIZER=ubsan
${SCRIPT_DIR}/../build.sh

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# Format: //devtools/kokoro/config/proto/build.proto
build_file: "tint/kokoro/linux/cmake-clang-debug-ubsan/build.sh"

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#!/bin/bash
# Copyright 2021 The Tint Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -e # Fail on any error.
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd )"
export BUILD_SYSTEM=cmake
export BUILD_TOOLCHAIN=clang
export BUILD_TYPE=Debug
${SCRIPT_DIR}/../build.sh

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# Format: //devtools/kokoro/config/proto/build.proto
build_file: "tint/kokoro/linux/cmake-clang-debug/build.sh"

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#!/bin/bash
# Copyright 2021 The Tint Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -e # Fail on any error.
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd )"
export BUILD_SYSTEM=cmake
export BUILD_TOOLCHAIN=clang
export BUILD_TYPE=Release
export BUILD_SANITIZER=asan
${SCRIPT_DIR}/../build.sh

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# Format: //devtools/kokoro/config/proto/build.proto
build_file: "tint/kokoro/linux/cmake-clang-release-asan/build.sh"

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#!/bin/bash
# Copyright 2021 The Tint Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -e # Fail on any error.
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd )"
export BUILD_SYSTEM=cmake
export BUILD_TOOLCHAIN=clang
export BUILD_TYPE=Release
export BUILD_SANITIZER=ubsan
${SCRIPT_DIR}/../build.sh

3
kokoro/linux/cmake-clang-release-ubsan/presubmit.cfg Normal file
View File

@ -0,0 +1,3 @@
# Format: //devtools/kokoro/config/proto/build.proto
build_file: "tint/kokoro/linux/cmake-clang-release-ubsan/build.sh"

25
kokoro/linux/cmake-clang-release/build.sh Executable file
View File

@ -0,0 +1,25 @@
#!/bin/bash
# Copyright 2021 The Tint Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -e # Fail on any error.
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd )"
export BUILD_SYSTEM=cmake
export BUILD_TOOLCHAIN=clang
export BUILD_TYPE=Release
${SCRIPT_DIR}/../build.sh

3
kokoro/linux/cmake-clang-release/presubmit.cfg Normal file
View File

@ -0,0 +1,3 @@
# Format: //devtools/kokoro/config/proto/build.proto
build_file: "tint/kokoro/linux/cmake-clang-release/build.sh"

25
kokoro/linux/cmake-gcc-debug/build.sh Executable file
View File

@ -0,0 +1,25 @@
#!/bin/bash
# Copyright 2021 The Tint Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -e # Fail on any error.
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd )"
export BUILD_SYSTEM=cmake
export BUILD_TOOLCHAIN=gcc
export BUILD_TYPE=Debug
${SCRIPT_DIR}/../build.sh

3
kokoro/linux/cmake-gcc-debug/presubmit.cfg Normal file
View File

@ -0,0 +1,3 @@
# Format: //devtools/kokoro/config/proto/build.proto
build_file: "tint/kokoro/linux/cmake-gcc-debug/build.sh"

25
kokoro/linux/cmake-gcc-release/build.sh Executable file
View File

@ -0,0 +1,25 @@
#!/bin/bash
# Copyright 2021 The Tint Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -e # Fail on any error.
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd )"
export BUILD_SYSTEM=cmake
export BUILD_TOOLCHAIN=gcc
export BUILD_TYPE=Release
${SCRIPT_DIR}/../build.sh

3
kokoro/linux/cmake-gcc-release/presubmit.cfg Normal file
View File

@ -0,0 +1,3 @@
# Format: //devtools/kokoro/config/proto/build.proto
build_file: "tint/kokoro/linux/cmake-gcc-release/build.sh"

183
kokoro/linux/docker.sh Executable file
View File

@ -0,0 +1,183 @@
#!/bin/bash
# Copyright 2021 The Tint Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This is the bash script invoked inside a docker container.
# The script expects that the CWD points to a clean checkout of Tint.
# As `gclient sync` will litter the tint checkout with fetched tools and
# projects, this script will first clone the pristine tint checkout to
# ${SRC_DIR}. This allows developers to locally run this script without having
# to worry about their local tint copy being touched.
#
# This script expects the following environment variables to be set on entry:
#
# SRC_DIR - Path to where the local Tint copy will be made. See above.
# BUILD_DIR - Path to where Tint will be built.
# BUILD_TYPE - Either: 'Debug' or 'Release'
# BUILD_SYSTEM - Must be 'cmake'
# BUILD_SANITIZER - Either: '', 'asan', or 'ubstan'
# BUILD_TOOLCHAIN - Either: 'clang' or 'gcc'
set -e # Fail on any error.
function show_cmds { set -x; }
function hide_cmds { { set +x; } 2>/dev/null; }
function task_begin {
TASK_NAME="$@"
SECONDS=0
}
function print_last_task_duration {
if [ ! -z "${TASK_NAME}" ]; then
echo "${TASK_NAME} completed in $(($SECONDS / 3600))h$((($SECONDS / 60) % 60))m$(($SECONDS % 60))s"
fi
}
function status {
echo ""
echo ""
print_last_task_duration
echo ""
echo "*****************************************************************"
echo "* $@"
echo "*****************************************************************"
echo ""
task_begin $@
}
function with_retry {
local MAX_ATTEMPTS=5
local RETRY_DELAY_SECS=5
local ATTEMPT=1
while true; do
"$@" && break
if [[ $ATTEMPT -ge $MAX_ATTEMPTS ]]; then
echo "The command has failed after $ATTEMPT attempts."
exit $?
fi
((ATTEMPT++))
echo "'$@' failed. Attempt ($ATTEMPT/$MAX_ATTEMPTS). Retrying..."
sleep $RETRY_DELAY_SECS;
done
}
CLONE_SRC_DIR="$(pwd)"
. /bin/using.sh # Declare the bash `using` function for configuring toolchains.
using depot_tools
using go-1.14.4 # Speeds up ./tools/lint
using doxygen-1.8.18
status "Creating source directory '${SRC_DIR}' and build directory '${BUILD_DIR}'"
mkdir -p ${SRC_DIR}
mkdir -p ${BUILD_DIR}
status "Cloning to source directory '${SRC_DIR}'"
cd ${SRC_DIR}
git clone ${CLONE_SRC_DIR} .
status "Fetching dependencies"
cp standalone.gclient .gclient
with_retry gclient sync
status "Linting"
./tools/lint
status "Configuring build system"
if [ "$BUILD_SYSTEM" == "cmake" ]; then
using cmake-3.17.2
COMMON_CMAKE_FLAGS=""
COMMON_CMAKE_FLAGS+=" -DCMAKE_BUILD_TYPE=${BUILD_TYPE}"
COMMON_CMAKE_FLAGS+=" -DTINT_DOCS_WARN_AS_ERROR=1"
COMMON_CMAKE_FLAGS+=" -DTINT_BUILD_BENCHMARKS=1"
if [ "$BUILD_TOOLCHAIN" == "clang" ]; then
using clang-10.0.0
COMMON_CMAKE_FLAGS+=" -DTINT_BUILD_FUZZERS=1"
COMMON_CMAKE_FLAGS+=" -DTINT_BUILD_SPIRV_TOOLS_FUZZER=1"
COMMON_CMAKE_FLAGS+=" -DTINT_BUILD_AST_FUZZER=1"
COMMON_CMAKE_FLAGS+=" -DTINT_BUILD_REGEX_FUZZER=1"
elif [ "$BUILD_TOOLCHAIN" == "gcc" ]; then
using gcc-9
fi
if [ "$BUILD_SANITIZER" == "asan" ]; then
COMMON_CMAKE_FLAGS+=" -DTINT_ENABLE_ASAN=1"
elif [ "$BUILD_SANITIZER" == "ubsan" ]; then
COMMON_CMAKE_FLAGS+=" -DTINT_ENABLE_UBSAN=1"
export UBSAN_OPTIONS=print_stacktrace=1:halt_on_error=1
fi
cd ${BUILD_DIR}
status "Running Doxygen"
echo "NOTE: This will fail on first warning. Run with -DTINT_DOCS_WARN_AS_ERROR=OFF to see all warnings".
echo ""
show_cmds
# NOTE: If we upgrade Doxygen to a more recent version, we can set DOXYGEN_WARN_AS_ERROR to
# "FAIL_ON_WARNINGS" instead of "YES" in our CMakeLists.txt so see all warnings, and then
# fail. See https://www.doxygen.nl/manual/config.html#cfg_warn_as_error
cmake ${SRC_DIR} ${CMAKE_FLAGS} ${COMMON_CMAKE_FLAGS}
cmake --build . --target tint-docs
hide_cmds
status "Building tint in '${BUILD_DIR}'"
show_cmds
cmake ${SRC_DIR} ${CMAKE_FLAGS} ${COMMON_CMAKE_FLAGS}
cmake --build . -- --jobs=$(nproc)
hide_cmds
status "Running tint_unittests"
show_cmds
./tint_unittests
hide_cmds
if [ -f ./tint_ast_fuzzer_unittests ]; then
status "Running tint_ast_fuzzer_unittests"
show_cmds
./tint_ast_fuzzer_unittests
hide_cmds
fi
if [ -f ./tint_regex_fuzzer_unittests ]; then
status "Running tint_regex_fuzzer_unittests"
show_cmds
./tint_regex_fuzzer_unittests
hide_cmds
fi
status "Testing test/tint/test-all.sh"
show_cmds
${SRC_DIR}/test/tint/test-all.sh "${BUILD_DIR}/tint" --verbose
hide_cmds
status "Checking _other.cc files also build"
show_cmds
cmake ${SRC_DIR} ${CMAKE_FLAGS} ${COMMON_CMAKE_FLAGS} -DTINT_BUILD_AS_OTHER_OS=ON
cmake --build . -- --jobs=$(nproc)
cmake ${SRC_DIR} ${CMAKE_FLAGS} ${COMMON_CMAKE_FLAGS} -DTINT_BUILD_AS_OTHER_OS=OFF
hide_cmds
status "Checking disabling all readers and writers also builds"
show_cmds
cmake ${SRC_DIR} ${CMAKE_FLAGS} ${COMMON_CMAKE_FLAGS} -DTINT_BUILD_SPV_READER=OFF -DTINT_BUILD_SPV_WRITER=OFF -DTINT_BUILD_WGSL_READER=OFF -DTINT_BUILD_WGSL_WRITER=OFF -DTINT_BUILD_MSL_WRITER=OFF -DTINT_BUILD_HLSL_WRITER=OFF -DTINT_BUILD_BENCHMARKS=OFF
cmake --build . -- --jobs=$(nproc)
cmake ${SRC_DIR} ${CMAKE_FLAGS} ${COMMON_CMAKE_FLAGS} -DTINT_BUILD_SPV_READER=ON -DTINT_BUILD_SPV_WRITER=ON -DTINT_BUILD_WGSL_READER=ON -DTINT_BUILD_WGSL_WRITER=ON -DTINT_BUILD_MSL_WRITER=ON -DTINT_BUILD_HLSL_WRITER=ON -DTINT_BUILD_BENCHMARKS=ON
hide_cmds
else
status "Unsupported build system: $BUILD_SYSTEM"
exit 1
fi
status "Done"

167
kokoro/windows/build.bat Normal file
View File

@ -0,0 +1,167 @@
@rem Copyright 2021 The Tint Authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem http://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@echo off
SETLOCAL ENABLEDELAYEDEXPANSION
goto :main
:task_begin
set TASK_NAME=%~1
echo %TASK_NAME% starting at %Time%
exit /b 0
:print_last_task_duration
if not "%TASK_NAME%" == "" (
echo %TASK_NAME% completed at %Time%
)
exit /b 0
:status
echo.
echo.
call :print_last_task_duration
echo.
echo *****************************************************************
echo %~1
echo *****************************************************************
echo.
call :task_begin "%~1"
exit /b 0
:main
set ORIGINAL_SRC_DIR= %~dp0\..\..
set TEMP_DIR=%TEMP%\tint-temp
set SRC_DIR="%TEMP_DIR%\tint-src"
set BUILD_DIR="%TEMP_DIR%\tint-build"
cd /d %ORIGINAL_SRC_DIR%
if not exist ".git\" (
echo "ORIGINAL_SRC_DIR should point to project root: %ORIGINAL_SRC_DIR%"
goto :error
)
if exist %TEMP_DIR% (
call :status "Deleting %TEMP_DIR%"
del /q/f/s %TEMP_DIR% > NUL || goto :error
rmdir /q/s %TEMP_DIR% > NUL || goto :error
)
mkdir %TEMP_DIR% || goto :error
call :status "Fetching and installing DXC"
@echo on
set DXC_RELEASE="https://github.com/microsoft/DirectXShaderCompiler/releases/download/v1.6.2112/dxc_2021_12_08.zip"
curl -k -L %DXC_RELEASE% --output "%TEMP_DIR%\dxc_release.zip" || goto :error
powershell.exe -Command "Expand-Archive -LiteralPath '%TEMP_DIR%\dxc_release.zip' -DestinationPath '%TEMP_DIR%\dxc'" || goto :error
set DXC_PATH=%TEMP_DIR%\dxc\bin\x64
rem Patch with artifact build that contains fixes not present in the release build
set DXC_ARTIFACT="https://ci.appveyor.com/api/projects/dnovillo/directxshadercompiler/artifacts/build%%2FRelease%%2Fdxc-artifacts.zip?branch=master&pr=false&job=image%%3A%%20Visual%%20Studio%%202019"
curl -k -L %DXC_ARTIFACT% --output "%TEMP_DIR%\dxc_artifact.zip" || goto :error
powershell.exe -Command "Expand-Archive -Force -LiteralPath '%TEMP_DIR%\dxc_artifact.zip' -DestinationPath '%TEMP_DIR%\dxc_artifact'" || goto :error
move /Y %TEMP_DIR%\dxc_artifact\bin\* %DXC_PATH%
@echo off
call :status "Fetching and installing Windows SDK for d3dcompiler DLL"
@echo on
set WINSDK_DLL_INSTALLER=https://go.microsoft.com/fwlink/?linkid=2164145
set WINSDK_VERSION=10.0.20348.0
curl -k -L %WINSDK_DLL_INSTALLER% --output "%TEMP_DIR%\winsdksetup.exe" || goto :error
start "download" /wait "%TEMP_DIR%\winsdksetup.exe" /quiet /norestart /ceip off /features OptionId.DesktopCPPx64 /layout "%TEMP_DIR%\winsdkinstall" || goto :error
start "install" /wait "%TEMP_DIR%\winsdkinstall\Installers\Windows SDK for Windows Store Apps Tools-x86_en-us.msi" || goto :error
set D3DCOMPILER_PATH=C:\Program Files (x86)\Windows Kits\10\bin\%WINSDK_VERSION%\x64
@echo off
call :status "Installing depot_tools"
@echo on
pushd %TEMP_DIR%
rem For Windows, we must download and extract a bundle.
rem See https://chromium.googlesource.com/chromium/src/+/HEAD/docs/windows_build_instructions.md#install
powershell -Command "(New-Object Net.WebClient).DownloadFile('https://storage.googleapis.com/chrome-infra/depot_tools.zip', 'depot_tools.zip')" || goto :error
powershell -Command "Expand-Archive -Force 'depot_tools.zip' 'depot_tools'" || goto :error
rem Run gclient once to install deps
set PATH=%TEMP_DIR%\depot_tools;%PATH%
set DEPOT_TOOLS_UPDATE=1
set DEPOT_TOOLS_WIN_TOOLCHAIN=0
call gclient || goto :error
@echo off
popd
call :status "Cloning to clean source directory"
@echo on
mkdir %SRC_DIR% || goto :error
cd /d %SRC_DIR% || goto :error
call git clone %ORIGINAL_SRC_DIR% . || goto :error
@echo off
call :status "Fetching dependencies"
@echo on
copy standalone.gclient .gclient || goto :error
call gclient sync || goto :error
@echo off
call :status "Configuring build system"
@echo on
mkdir %BUILD_DIR%
cd /d %BUILD_DIR%
set COMMON_CMAKE_FLAGS=-DTINT_BUILD_DOCS=O -DTINT_BUILD_BENCHMARKS=1 -DCMAKE_BUILD_TYPE=%BUILD_TYPE%
@echo off
call :status "Building tint"
@echo on
rem Disable msbuild "Intermediate or Output directory cannot reside in Temporary directory"
set IgnoreWarnIntDirInTempDetected=true
rem Add Python3 to path as this Kokoro image only has Python2 in it
set PATH=C:\Python37;%PATH%
rem To use ninja with CMake requires VC env vars
call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvars64.bat"
@echo on
rem Note that we need to specify the C and C++ compiler only because Cygwin is in PATH and CMake finds GCC and picks that over MSVC
cmake %SRC_DIR% -G "Ninja" -DCMAKE_C_COMPILER="cl.exe" -DCMAKE_CXX_COMPILER="cl.exe" %COMMON_CMAKE_FLAGS% || goto :error
cmake --build . || goto :error
call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvars64.bat" /clean_env
@echo off
call :status "Running tint_unittests"
@echo on
tint_unittests.exe || goto :error
@echo off
call :status "Testing test/tint/test-all.sh"
@echo on
cd /d %SRC_DIR% || goto :error
rem Run tests with DXC and Metal validation
set OLD_PATH=%PATH%
set PATH=C:\Program Files\Metal Developer Tools\macos\bin;%PATH%
where metal.exe
set PATH=%DXC_PATH%;%OLD_PATH%
where dxc.exe dxil.dll
call git bash -- ./test/tint/test-all.sh ../tint-build/tint.exe --verbose || goto :error
@echo on
set PATH=%OLD_PATH%
rem Run again to test with FXC validation
set PATH=%D3DCOMPILER_PATH%;%OLD_PATH%
where d3dcompiler_47.dll
call git bash -- ./test/tint/test-all.sh ../tint-build/tint.exe --verbose --format hlsl --fxc || goto :error
@echo on
set PATH=%OLD_PATH%
@echo off
call :status "Done"
exit /b 0
:error
echo BUILD FAILED! errorlevel: %errorlevel%
exit /b %errorlevel%

18
kokoro/windows/cmake-msvc2019-debug/build.bat Normal file
View File

@ -0,0 +1,18 @@
@rem Copyright 2021 The Tint Authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem http://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@echo on
set BUILD_TYPE=Debug
call %~dp0\..\build.bat
exit /b %errorlevel%

3
kokoro/windows/cmake-msvc2019-debug/presubmit.cfg Normal file
View File

@ -0,0 +1,3 @@
# Format: //devtools/kokoro/config/proto/build.proto
build_file: "tint/kokoro/windows/cmake-msvc2019-debug/build.bat"

18
kokoro/windows/cmake-msvc2019-release/build.bat Normal file
View File

@ -0,0 +1,18 @@
@rem Copyright 2021 The Tint Authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem http://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@echo on
set BUILD_TYPE=Release
call %~dp0\..\build.bat
exit /b %errorlevel%

3
kokoro/windows/cmake-msvc2019-release/presubmit.cfg Normal file
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@ -0,0 +1,3 @@
# Format: //devtools/kokoro/config/proto/build.proto
build_file: "tint/kokoro/windows/cmake-msvc2019-release/build.bat"

5
scripts/dawn_overrides_with_defaults.gni
View File

@ -75,11 +75,6 @@ if (!defined(dawn_vulkan_validation_layers_dir)) {
dawn_vulkan_validation_layers_dir = ""
}
if (!defined(dawn_tint_dir)) {
# Default to Tint being Dawn's DEPS
dawn_tint_dir = "${dawn_root}/third_party/tint"
}
if (!defined(dawn_abseil_dir)) {
dawn_abseil_dir = "//third_party/abseil-cpp"
}

2
src/dawn/native/BUILD.gn
View File

@ -163,7 +163,7 @@ source_set("sources") {
"${dawn_root}/src/dawn/common",
"${dawn_spirv_tools_dir}:spvtools_opt",
"${dawn_spirv_tools_dir}:spvtools_val",
"${dawn_tint_dir}/src/tint:libtint",
"${dawn_root}/src/tint:libtint",
]
defines = []
libs = []

799
src/tint/BUILD.gn Normal file
View File

@ -0,0 +1,799 @@
# Copyright 2021 The Tint Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import("//build_overrides/build.gni")
import("../../tint_overrides_with_defaults.gni")
###############################################################################
# Common - Configs, etc. shared across targets
###############################################################################
config("tint_common_config") {
include_dirs = [
"${target_gen_dir}",
"${tint_root_dir}/",
"${tint_spirv_headers_dir}/include",
"${tint_spirv_tools_dir}/",
"${tint_spirv_tools_dir}/include",
]
}
config("tint_public_config") {
defines = []
if (tint_build_spv_reader) {
defines += [ "TINT_BUILD_SPV_READER=1" ]
} else {
defines += [ "TINT_BUILD_SPV_READER=0" ]
}
if (tint_build_spv_writer) {
defines += [ "TINT_BUILD_SPV_WRITER=1" ]
} else {
defines += [ "TINT_BUILD_SPV_WRITER=0" ]
}
if (tint_build_wgsl_reader) {
defines += [ "TINT_BUILD_WGSL_READER=1" ]
} else {
defines += [ "TINT_BUILD_WGSL_READER=0" ]
}
if (tint_build_wgsl_writer) {
defines += [ "TINT_BUILD_WGSL_WRITER=1" ]
} else {
defines += [ "TINT_BUILD_WGSL_WRITER=0" ]
}
if (tint_build_msl_writer) {
defines += [ "TINT_BUILD_MSL_WRITER=1" ]
} else {
defines += [ "TINT_BUILD_MSL_WRITER=0" ]
}
if (tint_build_hlsl_writer) {
defines += [ "TINT_BUILD_HLSL_WRITER=1" ]
} else {
defines += [ "TINT_BUILD_HLSL_WRITER=0" ]
}
if (tint_build_glsl_writer) {
defines += [ "TINT_BUILD_GLSL_WRITER=1" ]
} else {
defines += [ "TINT_BUILD_GLSL_WRITER=0" ]
}
include_dirs = [
"${tint_root_dir}/",
"${tint_root_dir}/include/",
"${tint_spirv_headers_dir}/include",
]
}
config("tint_config") {
include_dirs = []
if (tint_build_spv_reader || tint_build_spv_writer) {
include_dirs += [ "${tint_spirv_tools_dir}/include/" ]
}
}
###############################################################################
# Helper library for IO operations
# Only to be used by tests and sample executable
###############################################################################
source_set("tint_utils_io") {
sources = [
"utils/io/command.h",
"utils/io/tmpfile.h",
]
if (is_linux || is_mac) {
sources += [ "utils/io/command_posix.cc" ]
sources += [ "utils/io/tmpfile_posix.cc" ]
} else if (is_win) {
sources += [ "utils/io/command_windows.cc" ]
sources += [ "utils/io/tmpfile_windows.cc" ]
} else {
sources += [ "utils/io/command_other.cc" ]
sources += [ "utils/io/tmpfile_other.cc" ]
}
public_deps = [ ":libtint_core_all_src" ]
}
###############################################################################
# Helper library for validating generated shaders
# As this depends on tint_utils_io, this is only to be used by tests and sample
# executable
###############################################################################
source_set("tint_val") {
sources = [
"val/hlsl.cc",
"val/msl.cc",
"val/val.h",
]
public_deps = [ ":tint_utils_io" ]
}
###############################################################################
# Library - Tint core and optional modules of libtint
###############################################################################
# libtint source sets are divided into a non-optional core in :libtint_core_src
# and optional :libtint_*_src subsets, because ninja does not like having
# multiple source files with the same name, like function.cc, in the same
# source set
# target.
#
# Targets that want to use tint as a library should depend on ":libtint" and
# use the build flags to control what is included, instead of trying to specify
# the subsets that they want.
template("libtint_source_set") {
source_set(target_name) {
forward_variables_from(invoker, "*", [ "configs" ])
if (!defined(invoker.deps)) {
deps = []
}
deps += [
"${tint_spirv_headers_dir}:spv_headers",
"${tint_spirv_tools_dir}:spvtools_core_enums_unified1",
"${tint_spirv_tools_dir}:spvtools_core_tables_unified1",
"${tint_spirv_tools_dir}:spvtools_headers",
"${tint_spirv_tools_dir}:spvtools_language_header_cldebuginfo100",
"${tint_spirv_tools_dir}:spvtools_language_header_debuginfo",
"${tint_spirv_tools_dir}:spvtools_language_header_vkdebuginfo100",
]
if (defined(invoker.configs)) {
configs += invoker.configs
}
configs += [ ":tint_common_config" ]
if (build_with_chromium) {
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
}
if (!defined(invoker.public_configs)) {
public_configs = []
}
public_configs += [ ":tint_public_config" ]
}
}
libtint_source_set("libtint_core_all_src") {
sources = [
"ast/access.cc",
"ast/access.h",
"ast/alias.cc",
"ast/alias.h",
"ast/array.cc",
"ast/array.h",
"ast/assignment_statement.cc",
"ast/assignment_statement.h",
"ast/ast_type.cc", # TODO(bclayton) - rename to type.cc
"ast/atomic.cc",
"ast/atomic.h",
"ast/attribute.cc",
"ast/attribute.h",
"ast/binary_expression.cc",
"ast/binary_expression.h",
"ast/binding_attribute.cc",
"ast/binding_attribute.h",
"ast/bitcast_expression.cc",
"ast/bitcast_expression.h",
"ast/block_statement.cc",
"ast/block_statement.h",
"ast/bool.cc",
"ast/bool.h",
"ast/bool_literal_expression.cc",
"ast/bool_literal_expression.h",
"ast/break_statement.cc",
"ast/break_statement.h",
"ast/builtin.cc",
"ast/builtin.h",
"ast/builtin_attribute.cc",
"ast/builtin_attribute.h",
"ast/call_expression.cc",
"ast/call_expression.h",
"ast/call_statement.cc",
"ast/call_statement.h",
"ast/case_statement.cc",
"ast/case_statement.h",
"ast/compound_assignment_statement.cc",
"ast/compound_assignment_statement.h",
"ast/continue_statement.cc",
"ast/continue_statement.h",
"ast/depth_multisampled_texture.cc",
"ast/depth_multisampled_texture.h",
"ast/depth_texture.cc",
"ast/depth_texture.h",
"ast/disable_validation_attribute.cc",
"ast/disable_validation_attribute.h",
"ast/discard_statement.cc",
"ast/discard_statement.h",
"ast/else_statement.cc",
"ast/else_statement.h",
"ast/expression.cc",
"ast/expression.h",
"ast/external_texture.cc",
"ast/external_texture.h",
"ast/f32.cc",
"ast/f32.h",
"ast/fallthrough_statement.cc",
"ast/fallthrough_statement.h",
"ast/float_literal_expression.cc",
"ast/float_literal_expression.h",
"ast/for_loop_statement.cc",
"ast/for_loop_statement.h",
"ast/function.cc",
"ast/function.h",
"ast/group_attribute.cc",
"ast/group_attribute.h",
"ast/i32.cc",
"ast/i32.h",
"ast/id_attribute.cc",
"ast/id_attribute.h",
"ast/identifier_expression.cc",
"ast/identifier_expression.h",
"ast/if_statement.cc",
"ast/if_statement.h",
"ast/index_accessor_expression.cc",
"ast/index_accessor_expression.h",
"ast/int_literal_expression.cc",
"ast/int_literal_expression.h",
"ast/internal_attribute.cc",
"ast/internal_attribute.h",
"ast/interpolate_attribute.cc",
"ast/interpolate_attribute.h",
"ast/invariant_attribute.cc",
"ast/invariant_attribute.h",
"ast/literal_expression.cc",
"ast/literal_expression.h",
"ast/location_attribute.cc",
"ast/location_attribute.h",
"ast/loop_statement.cc",
"ast/loop_statement.h",
"ast/matrix.cc",
"ast/matrix.h",
"ast/member_accessor_expression.cc",
"ast/member_accessor_expression.h",
"ast/module.cc",
"ast/module.h",
"ast/multisampled_texture.cc",
"ast/multisampled_texture.h",
"ast/node.cc",
"ast/node.h",
"ast/phony_expression.cc",
"ast/phony_expression.h",
"ast/pipeline_stage.cc",
"ast/pipeline_stage.h",
"ast/pointer.cc",
"ast/pointer.h",
"ast/return_statement.cc",
"ast/return_statement.h",
"ast/sampled_texture.cc",
"ast/sampled_texture.h",
"ast/sampler.cc",
"ast/sampler.h",
"ast/sint_literal_expression.cc",
"ast/sint_literal_expression.h",
"ast/stage_attribute.cc",
"ast/stage_attribute.h",
"ast/statement.cc",
"ast/statement.h",
"ast/storage_class.cc",
"ast/storage_class.h",
"ast/storage_texture.cc",
"ast/storage_texture.h",
"ast/stride_attribute.cc",
"ast/stride_attribute.h",
"ast/struct.cc",
"ast/struct.h",
"ast/struct_member.cc",
"ast/struct_member.h",
"ast/struct_member_align_attribute.cc",
"ast/struct_member_align_attribute.h",
"ast/struct_member_offset_attribute.cc",
"ast/struct_member_offset_attribute.h",
"ast/struct_member_size_attribute.cc",
"ast/struct_member_size_attribute.h",
"ast/switch_statement.cc",
"ast/switch_statement.h",
"ast/texture.cc",
"ast/texture.h",
"ast/traverse_expressions.h",
"ast/type.h",
"ast/type_decl.cc",
"ast/type_decl.h",
"ast/type_name.cc",
"ast/type_name.h",
"ast/u32.cc",
"ast/u32.h",
"ast/uint_literal_expression.cc",
"ast/uint_literal_expression.h",
"ast/unary_op.cc",
"ast/unary_op.h",
"ast/unary_op_expression.cc",
"ast/unary_op_expression.h",
"ast/variable.cc",
"ast/variable.h",
"ast/variable_decl_statement.cc",
"ast/variable_decl_statement.h",
"ast/vector.cc",
"ast/vector.h",
"ast/void.cc",
"ast/void.h",
"ast/workgroup_attribute.cc",
"ast/workgroup_attribute.h",
"builtin_table.cc",
"builtin_table.h",
"builtin_table.inl",
"castable.cc",
"castable.h",
"clone_context.cc",
"clone_context.h",
"debug.cc",
"debug.h",
"demangler.cc",
"demangler.h",
"diagnostic/diagnostic.cc",
"diagnostic/diagnostic.h",
"diagnostic/formatter.cc",
"diagnostic/formatter.h",
"diagnostic/printer.cc",
"diagnostic/printer.h",
"inspector/entry_point.cc",
"inspector/entry_point.h",
"inspector/inspector.cc",
"inspector/inspector.h",
"inspector/resource_binding.cc",
"inspector/resource_binding.h",
"inspector/scalar.cc",
"inspector/scalar.h",
"program.cc",
"program.h",
"program_builder.cc",
"program_builder.h",
"program_id.cc",
"program_id.h",
"reader/reader.cc",
"reader/reader.h",
"resolver/dependency_graph.cc",
"resolver/dependency_graph.h",
"resolver/resolver.cc",
"resolver/resolver.h",
"resolver/resolver_constants.cc",
"resolver/resolver_validation.cc",
"scope_stack.h",
"sem/array.h",
"sem/atomic_type.h",
"sem/behavior.h",
"sem/binding_point.h",
"sem/bool_type.h",
"sem/builtin.h",
"sem/builtin_type.h",
"sem/call.h",
"sem/call_target.h",
"sem/constant.h",
"sem/depth_multisampled_texture_type.h",
"sem/depth_texture_type.h",
"sem/expression.h",
"sem/external_texture_type.h",
"sem/f32_type.h",
"sem/for_loop_statement.h",
"sem/i32_type.h",
"sem/if_statement.h",
"sem/info.h",
"sem/loop_statement.h",
"sem/matrix_type.h",
"sem/module.h",
"sem/multisampled_texture_type.h",
"sem/node.h",
"sem/parameter_usage.h",
"sem/pipeline_stage_set.h",
"sem/pointer_type.h",
"sem/reference_type.h",
"sem/sampled_texture_type.h",
"sem/sampler_texture_pair.h",
"sem/sampler_type.h",
"sem/storage_texture_type.h",
"sem/switch_statement.h",
"sem/texture_type.h",
"sem/type.h",
"sem/type_constructor.h",
"sem/type_conversion.h",
"sem/type_manager.h",
"sem/type_mappings.h",
"sem/u32_type.h",
"sem/vector_type.h",
"sem/void_type.h",
"source.cc",
"source.h",
"symbol.cc",
"symbol.h",
"symbol_table.cc",
"symbol_table.h",
"text/unicode.cc",
"text/unicode.h",
"traits.h",
"transform/add_empty_entry_point.cc",
"transform/add_empty_entry_point.h",
"transform/add_spirv_block_attribute.cc",
"transform/add_spirv_block_attribute.h",
"transform/array_length_from_uniform.cc",
"transform/array_length_from_uniform.h",
"transform/binding_remapper.cc",
"transform/binding_remapper.h",
"transform/builtin_polyfill.cc",
"transform/builtin_polyfill.h",
"transform/calculate_array_length.cc",
"transform/calculate_array_length.h",
"transform/canonicalize_entry_point_io.cc",
"transform/canonicalize_entry_point_io.h",
"transform/combine_samplers.cc",
"transform/combine_samplers.h",
"transform/decompose_memory_access.cc",
"transform/decompose_memory_access.h",
"transform/decompose_strided_array.cc",
"transform/decompose_strided_array.h",
"transform/decompose_strided_matrix.cc",
"transform/decompose_strided_matrix.h",
"transform/first_index_offset.cc",
"transform/first_index_offset.h",
"transform/fold_constants.cc",
"transform/fold_constants.h",
"transform/fold_trivial_single_use_lets.cc",
"transform/fold_trivial_single_use_lets.h",
"transform/for_loop_to_loop.cc",
"transform/for_loop_to_loop.h",
"transform/expand_compound_assignment.cc",
"transform/expand_compound_assignment.h",
"transform/localize_struct_array_assignment.cc",
"transform/localize_struct_array_assignment.h",
"transform/loop_to_for_loop.cc",
"transform/loop_to_for_loop.h",
"transform/manager.cc",
"transform/manager.h",
"transform/module_scope_var_to_entry_point_param.cc",
"transform/module_scope_var_to_entry_point_param.h",
"transform/multiplanar_external_texture.cc",
"transform/multiplanar_external_texture.h",
"transform/num_workgroups_from_uniform.cc",
"transform/num_workgroups_from_uniform.h",
"transform/promote_initializers_to_const_var.cc",
"transform/promote_initializers_to_const_var.h",
"transform/promote_side_effects_to_decl.cc",
"transform/promote_side_effects_to_decl.h",
"transform/remove_continue_in_switch.cc",
"transform/remove_continue_in_switch.h",
"transform/remove_phonies.cc",
"transform/remove_phonies.h",
"transform/remove_unreachable_statements.cc",
"transform/remove_unreachable_statements.h",
"transform/renamer.cc",
"transform/renamer.h",
"transform/robustness.cc",
"transform/robustness.h",
"transform/simplify_pointers.cc",
"transform/simplify_pointers.h",
"transform/single_entry_point.cc",
"transform/single_entry_point.h",
"transform/transform.cc",
"transform/transform.h",
"transform/unshadow.cc",
"transform/unshadow.h",
"transform/unwind_discard_functions.cc",
"transform/unwind_discard_functions.h",
"transform/utils/get_insertion_point.cc",
"transform/utils/get_insertion_point.h",
"transform/utils/hoist_to_decl_before.cc",
"transform/utils/hoist_to_decl_before.h",
"transform/var_for_dynamic_index.cc",
"transform/var_for_dynamic_index.h",
"transform/vectorize_scalar_matrix_constructors.cc",
"transform/vectorize_scalar_matrix_constructors.h",
"transform/vertex_pulling.cc",
"transform/vertex_pulling.h",
"transform/wrap_arrays_in_structs.cc",
"transform/wrap_arrays_in_structs.h",
"transform/zero_init_workgroup_memory.cc",
"transform/zero_init_workgroup_memory.h",
"utils/block_allocator.h",
"utils/crc32.h",
"utils/debugger.cc",
"utils/debugger.h",
"utils/enum_set.h",
"utils/hash.h",
"utils/map.h",
"utils/math.h",
"utils/scoped_assignment.h",
"utils/string.h",
"utils/unique_allocator.h",
"utils/unique_vector.h",
"writer/append_vector.cc",
"writer/append_vector.h",
"writer/array_length_from_uniform_options.cc",
"writer/array_length_from_uniform_options.h",
"writer/float_to_string.cc",
"writer/float_to_string.h",
"writer/generate_external_texture_bindings.cc",
"writer/generate_external_texture_bindings.h",
"writer/text.cc",
"writer/text.h",
"writer/text_generator.cc",
"writer/text_generator.h",
"writer/writer.cc",
"writer/writer.h",
]
if (is_linux) {
sources += [ "diagnostic/printer_linux.cc" ]
} else if (is_win) {
sources += [ "diagnostic/printer_windows.cc" ]
} else {
sources += [ "diagnostic/printer_other.cc" ]
}
}
libtint_source_set("libtint_sem_src") {
sources = [
"sem/array.cc",
"sem/array.h",
"sem/atomic_type.cc",
"sem/atomic_type.h",
"sem/behavior.cc",
"sem/behavior.h",
"sem/binding_point.h",
"sem/block_statement.cc",
"sem/bool_type.cc",
"sem/bool_type.h",
"sem/builtin.cc",
"sem/builtin.h",
"sem/builtin_type.cc",
"sem/builtin_type.h",
"sem/call.cc",
"sem/call.h",
"sem/call_target.cc",
"sem/call_target.h",
"sem/constant.cc",
"sem/constant.h",
"sem/depth_multisampled_texture_type.cc",
"sem/depth_multisampled_texture_type.h",
"sem/depth_texture_type.cc",
"sem/depth_texture_type.h",
"sem/expression.cc",
"sem/expression.h",
"sem/external_texture_type.cc",
"sem/external_texture_type.h",
"sem/f32_type.cc",
"sem/f32_type.h",
"sem/for_loop_statement.cc",
"sem/for_loop_statement.h",
"sem/function.cc",
"sem/i32_type.cc",
"sem/i32_type.h",
"sem/if_statement.cc",
"sem/if_statement.h",
"sem/info.cc",
"sem/info.h",
"sem/loop_statement.cc",
"sem/loop_statement.h",
"sem/matrix_type.cc",
"sem/matrix_type.h",
"sem/member_accessor_expression.cc",
"sem/module.cc",
"sem/module.h",
"sem/multisampled_texture_type.cc",
"sem/multisampled_texture_type.h",
"sem/node.cc",
"sem/node.h",
"sem/parameter_usage.cc",
"sem/parameter_usage.h",
"sem/pipeline_stage_set.h",
"sem/pointer_type.cc",
"sem/pointer_type.h",
"sem/reference_type.cc",
"sem/reference_type.h",
"sem/sampled_texture_type.cc",
"sem/sampled_texture_type.h",
"sem/sampler_type.cc",
"sem/sampler_type.h",
"sem/statement.cc",
"sem/storage_texture_type.cc",
"sem/storage_texture_type.h",
"sem/struct.cc",
"sem/switch_statement.cc",
"sem/switch_statement.h",
"sem/texture_type.cc",
"sem/texture_type.h",
"sem/type.cc",
"sem/type.h",
"sem/type_constructor.cc",
"sem/type_constructor.h",
"sem/type_conversion.cc",
"sem/type_conversion.h",
"sem/type_manager.cc",
"sem/type_manager.h",
"sem/type_mappings.h",
"sem/u32_type.cc",
"sem/u32_type.h",
"sem/variable.cc",
"sem/vector_type.cc",
"sem/vector_type.h",
"sem/void_type.cc",
"sem/void_type.h",
]
public_deps = [ ":libtint_core_all_src" ]
}
libtint_source_set("libtint_core_src") {
public_deps = [
":libtint_core_all_src",
":libtint_sem_src",
]
}
libtint_source_set("libtint_spv_reader_src") {
sources = [
"reader/spirv/construct.cc",
"reader/spirv/construct.h",
"reader/spirv/entry_point_info.cc",
"reader/spirv/entry_point_info.h",
"reader/spirv/enum_converter.cc",
"reader/spirv/enum_converter.h",
"reader/spirv/fail_stream.h",
"reader/spirv/function.cc",
"reader/spirv/function.h",
"reader/spirv/namer.cc",
"reader/spirv/namer.h",
"reader/spirv/parser.cc",
"reader/spirv/parser.h",
"reader/spirv/parser_impl.cc",
"reader/spirv/parser_impl.h",
"reader/spirv/parser_type.cc",
"reader/spirv/parser_type.h",
"reader/spirv/usage.cc",
"reader/spirv/usage.h",
]
public_deps = [
":libtint_core_src",
"${tint_spirv_tools_dir}/:spvtools_opt",
]
public_configs = [ "${tint_spirv_tools_dir}/:spvtools_internal_config" ]
}
libtint_source_set("libtint_spv_writer_src") {
sources = [
"writer/spirv/binary_writer.cc",
"writer/spirv/binary_writer.h",
"writer/spirv/builder.cc",
"writer/spirv/builder.h",
"writer/spirv/function.cc",
"writer/spirv/function.h",
"writer/spirv/generator.cc",
"writer/spirv/generator.h",
"writer/spirv/instruction.cc",
"writer/spirv/instruction.h",
"writer/spirv/operand.cc",
"writer/spirv/operand.h",
"writer/spirv/scalar_constant.h",
]
public_deps = [ ":libtint_core_src" ]
}
libtint_source_set("libtint_wgsl_reader_src") {
sources = [
"reader/wgsl/lexer.cc",
"reader/wgsl/lexer.h",
"reader/wgsl/parser.cc",
"reader/wgsl/parser.h",
"reader/wgsl/parser_impl.cc",
"reader/wgsl/parser_impl.h",
"reader/wgsl/parser_impl_detail.h",
"reader/wgsl/token.cc",
"reader/wgsl/token.h",
]
public_deps = [ ":libtint_core_src" ]
}
libtint_source_set("libtint_wgsl_writer_src") {
sources = [
"writer/wgsl/generator.cc",
"writer/wgsl/generator.h",
"writer/wgsl/generator_impl.cc",
"writer/wgsl/generator_impl.h",
]
public_deps = [ ":libtint_core_src" ]
}
libtint_source_set("libtint_msl_writer_src") {
sources = [
"writer/msl/generator.cc",
"writer/msl/generator.h",
"writer/msl/generator_impl.cc",
"writer/msl/generator_impl.h",
]
public_deps = [ ":libtint_core_src" ]
}
libtint_source_set("libtint_hlsl_writer_src") {
sources = [
"writer/hlsl/generator.cc",
"writer/hlsl/generator.h",
"writer/hlsl/generator_impl.cc",
"writer/hlsl/generator_impl.h",
]
public_deps = [ ":libtint_core_src" ]
}
libtint_source_set("libtint_glsl_writer_src") {
sources = [
"transform/glsl.cc",
"transform/glsl.h",
"writer/glsl/generator.cc",
"writer/glsl/generator.h",
"writer/glsl/generator_impl.cc",
"writer/glsl/generator_impl.h",
]
public_deps = [ ":libtint_core_src" ]
}
source_set("libtint") {
public_deps = [ ":libtint_core_src" ]
if (tint_build_spv_reader) {
public_deps += [ ":libtint_spv_reader_src" ]
}
if (tint_build_spv_writer) {
public_deps += [ ":libtint_spv_writer_src" ]
}
if (tint_build_wgsl_reader) {
public_deps += [ ":libtint_wgsl_reader_src" ]
}
if (tint_build_wgsl_writer) {
public_deps += [ ":libtint_wgsl_writer_src" ]
}
if (tint_build_msl_writer) {
public_deps += [ ":libtint_msl_writer_src" ]
}
if (tint_build_hlsl_writer) {
public_deps += [ ":libtint_hlsl_writer_src" ]
}
if (tint_build_glsl_writer) {
public_deps += [ ":libtint_glsl_writer_src" ]
}
configs += [ ":tint_common_config" ]
public_configs = [ ":tint_public_config" ]
if (build_with_chromium) {
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
}
}

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src/tint/CMakeLists.txt Normal file
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43
src/tint/ast/access.cc Normal file
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@ -0,0 +1,43 @@
// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/access.h"
namespace tint {
namespace ast {
std::ostream& operator<<(std::ostream& out, Access access) {
switch (access) {
case ast::Access::kUndefined: {
out << "undefined";
break;
}
case ast::Access::kRead: {
out << "read";
break;
}
case ast::Access::kReadWrite: {
out << "read_write";
break;
}
case ast::Access::kWrite: {
out << "write";
break;
}
}
return out;
}
} // namespace ast
} // namespace tint

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src/tint/ast/access.h Normal file
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@ -0,0 +1,46 @@
// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_AST_ACCESS_H_
#define SRC_TINT_AST_ACCESS_H_
#include <ostream>
#include <string>
namespace tint {
namespace ast {
/// The access control settings
enum Access {
/// Not declared in the source
kUndefined = 0,
/// Read only
kRead,
/// Write only
kWrite,
/// Read write
kReadWrite,
// Last valid access mode
kLastValid = kReadWrite,
};
/// @param out the std::ostream to write to
/// @param access the Access
/// @return the std::ostream so calls can be chained
std::ostream& operator<<(std::ostream& out, Access access);
} // namespace ast
} // namespace tint
#endif // SRC_TINT_AST_ACCESS_H_

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/alias.h"
#include "src/tint/program_builder.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::Alias);
namespace tint {
namespace ast {
Alias::Alias(ProgramID pid,
const Source& src,
const Symbol& n,
const Type* subtype)
: Base(pid, src, n), type(subtype) {
TINT_ASSERT(AST, type);
}
Alias::Alias(Alias&&) = default;
Alias::~Alias() = default;
const Alias* Alias::Clone(CloneContext* ctx) const {
// Clone arguments outside of create() call to have deterministic ordering
auto src = ctx->Clone(source);
auto sym = ctx->Clone(name);
auto* ty = ctx->Clone(type);
return ctx->dst->create<Alias>(src, sym, ty);
}
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_AST_ALIAS_H_
#define SRC_TINT_AST_ALIAS_H_
#include <string>
#include "src/tint/ast/type_decl.h"
namespace tint {
namespace ast {
/// A type alias type. Holds a name and pointer to another type.
class Alias final : public Castable<Alias, TypeDecl> {
public:
/// Constructor
/// @param pid the identifier of the program that owns this node
/// @param src the source of this node
/// @param name the symbol for the alias
/// @param subtype the alias'd type
Alias(ProgramID pid,
const Source& src,
const Symbol& name,
const Type* subtype);
/// Move constructor
Alias(Alias&&);
/// Destructor
~Alias() override;
/// Clones this type and all transitive types using the `CloneContext` `ctx`.
/// @param ctx the clone context
/// @return the newly cloned type
const Alias* Clone(CloneContext* ctx) const override;
/// the alias type
const Type* const type;
};
} // namespace ast
} // namespace tint
#endif // SRC_TINT_AST_ALIAS_H_

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/alias.h"
#include "src/tint/ast/access.h"
#include "src/tint/ast/array.h"
#include "src/tint/ast/bool.h"
#include "src/tint/ast/f32.h"
#include "src/tint/ast/i32.h"
#include "src/tint/ast/matrix.h"
#include "src/tint/ast/pointer.h"
#include "src/tint/ast/sampler.h"
#include "src/tint/ast/struct.h"
#include "src/tint/ast/test_helper.h"
#include "src/tint/ast/texture.h"
#include "src/tint/ast/u32.h"
#include "src/tint/ast/vector.h"
namespace tint {
namespace ast {
namespace {
using AstAliasTest = TestHelper;
TEST_F(AstAliasTest, Create) {
auto* u32 = create<U32>();
auto* a = Alias("a_type", u32);
EXPECT_EQ(a->name, Symbol(1, ID()));
EXPECT_EQ(a->type, u32);
}
} // namespace
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/array.h"
#include <cmath>
#include "src/tint/program_builder.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::Array);
namespace tint {
namespace ast {
namespace {
// Returns the string representation of an array size expression.
std::string SizeExprToString(const Expression* size,
const SymbolTable& symbols) {
if (auto* ident = size->As<IdentifierExpression>()) {
return symbols.NameFor(ident->symbol);
}
if (auto* literal = size->As<IntLiteralExpression>()) {
return std::to_string(literal->ValueAsU32());
}
// This will never be exposed to the user as the Resolver will reject this
// expression for array size.
return "<invalid>";
}
} // namespace
Array::Array(ProgramID pid,
const Source& src,
const Type* subtype,
const Expression* cnt,
AttributeList attrs)
: Base(pid, src), type(subtype), count(cnt), attributes(attrs) {}
Array::Array(Array&&) = default;
Array::~Array() = default;
std::string Array::FriendlyName(const SymbolTable& symbols) const {
std::ostringstream out;
for (auto* attr : attributes) {
if (auto* stride = attr->As<ast::StrideAttribute>()) {
out << "@stride(" << stride->stride << ") ";
}
}
out << "array<" << type->FriendlyName(symbols);
if (!IsRuntimeArray()) {
out << ", " << SizeExprToString(count, symbols);
}
out << ">";
return out.str();
}
const Array* Array::Clone(CloneContext* ctx) const {
// Clone arguments outside of create() call to have deterministic ordering
auto src = ctx->Clone(source);
auto* ty = ctx->Clone(type);
auto* cnt = ctx->Clone(count);
auto attrs = ctx->Clone(attributes);
return ctx->dst->create<Array>(src, ty, cnt, attrs);
}
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_AST_ARRAY_H_
#define SRC_TINT_AST_ARRAY_H_
#include <string>
#include "src/tint/ast/attribute.h"
#include "src/tint/ast/type.h"
namespace tint {
namespace ast {
// Forward declarations.
class Expression;
/// An array type. If size is zero then it is a runtime array.
class Array final : public Castable<Array, Type> {
public:
/// Constructor
/// @param pid the identifier of the program that owns this node
/// @param src the source of this node
/// @param subtype the type of the array elements
/// @param count the number of elements in the array. nullptr represents a
/// runtime-sized array.
/// @param attributes the array attributes
Array(ProgramID pid,
const Source& src,
const Type* subtype,
const Expression* count,
AttributeList attributes);
/// Move constructor
Array(Array&&);
~Array() override;
/// @returns true if this is a runtime array.
/// i.e. the size is determined at runtime
bool IsRuntimeArray() const { return count == nullptr; }
/// @param symbols the program's symbol table
/// @returns the name for this type that closely resembles how it would be
/// declared in WGSL.
std::string FriendlyName(const SymbolTable& symbols) const override;
/// Clones this type and all transitive types using the `CloneContext` `ctx`.
/// @param ctx the clone context
/// @return the newly cloned type
const Array* Clone(CloneContext* ctx) const override;
/// the array element type
const Type* const type;
/// the array size in elements, or nullptr for a runtime array
const Expression* const count;
/// the array attributes
const AttributeList attributes;
};
} // namespace ast
} // namespace tint
#endif // SRC_TINT_AST_ARRAY_H_

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/array.h"
#include "src/tint/ast/test_helper.h"
namespace tint {
namespace ast {
namespace {
using AstArrayTest = TestHelper;
TEST_F(AstArrayTest, CreateSizedArray) {
auto* u32 = create<U32>();
auto* count = Expr(3);
auto* arr = create<Array>(u32, count, AttributeList{});
EXPECT_EQ(arr->type, u32);
EXPECT_EQ(arr->count, count);
EXPECT_TRUE(arr->Is<Array>());
EXPECT_FALSE(arr->IsRuntimeArray());
}
TEST_F(AstArrayTest, CreateRuntimeArray) {
auto* u32 = create<U32>();
auto* arr = create<Array>(u32, nullptr, AttributeList{});
EXPECT_EQ(arr->type, u32);
EXPECT_EQ(arr->count, nullptr);
EXPECT_TRUE(arr->Is<Array>());
EXPECT_TRUE(arr->IsRuntimeArray());
}
TEST_F(AstArrayTest, FriendlyName_RuntimeSized) {
auto* i32 = create<I32>();
auto* arr = create<Array>(i32, nullptr, AttributeList{});
EXPECT_EQ(arr->FriendlyName(Symbols()), "array<i32>");
}
TEST_F(AstArrayTest, FriendlyName_LiteralSized) {
auto* i32 = create<I32>();
auto* arr = create<Array>(i32, Expr(5), AttributeList{});
EXPECT_EQ(arr->FriendlyName(Symbols()), "array<i32, 5>");
}
TEST_F(AstArrayTest, FriendlyName_ConstantSized) {
auto* i32 = create<I32>();
auto* arr = create<Array>(i32, Expr("size"), AttributeList{});
EXPECT_EQ(arr->FriendlyName(Symbols()), "array<i32, size>");
}
TEST_F(AstArrayTest, FriendlyName_WithStride) {
auto* i32 = create<I32>();
auto* arr =
create<Array>(i32, Expr(5), AttributeList{create<StrideAttribute>(32)});
EXPECT_EQ(arr->FriendlyName(Symbols()), "@stride(32) array<i32, 5>");
}
} // namespace
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/assignment_statement.h"
#include "src/tint/program_builder.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::AssignmentStatement);
namespace tint {
namespace ast {
AssignmentStatement::AssignmentStatement(ProgramID pid,
const Source& src,
const Expression* l,
const Expression* r)
: Base(pid, src), lhs(l), rhs(r) {
TINT_ASSERT(AST, lhs);
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, lhs, program_id);
TINT_ASSERT(AST, rhs);
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, rhs, program_id);
}
AssignmentStatement::AssignmentStatement(AssignmentStatement&&) = default;
AssignmentStatement::~AssignmentStatement() = default;
const AssignmentStatement* AssignmentStatement::Clone(CloneContext* ctx) const {
// Clone arguments outside of create() call to have deterministic ordering
auto src = ctx->Clone(source);
auto* l = ctx->Clone(lhs);
auto* r = ctx->Clone(rhs);
return ctx->dst->create<AssignmentStatement>(src, l, r);
}
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_AST_ASSIGNMENT_STATEMENT_H_
#define SRC_TINT_AST_ASSIGNMENT_STATEMENT_H_
#include "src/tint/ast/expression.h"
#include "src/tint/ast/statement.h"
namespace tint {
namespace ast {
/// An assignment statement
class AssignmentStatement final
: public Castable<AssignmentStatement, Statement> {
public:
/// Constructor
/// @param program_id the identifier of the program that owns this node
/// @param source the assignment statement source
/// @param lhs the left side of the expression
/// @param rhs the right side of the expression
AssignmentStatement(ProgramID program_id,
const Source& source,
const Expression* lhs,
const Expression* rhs);
/// Move constructor
AssignmentStatement(AssignmentStatement&&);
~AssignmentStatement() override;
/// Clones this node and all transitive child nodes using the `CloneContext`
/// `ctx`.
/// @param ctx the clone context
/// @return the newly cloned node
const AssignmentStatement* Clone(CloneContext* ctx) const override;
/// left side expression
const Expression* const lhs;
/// right side expression
const Expression* const rhs;
};
} // namespace ast
} // namespace tint
#endif // SRC_TINT_AST_ASSIGNMENT_STATEMENT_H_

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/assignment_statement.h"
#include "gtest/gtest-spi.h"
#include "src/tint/ast/test_helper.h"
namespace tint {
namespace ast {
namespace {
using AssignmentStatementTest = TestHelper;
TEST_F(AssignmentStatementTest, Creation) {
auto* lhs = Expr("lhs");
auto* rhs = Expr("rhs");
auto* stmt = create<AssignmentStatement>(lhs, rhs);
EXPECT_EQ(stmt->lhs, lhs);
EXPECT_EQ(stmt->rhs, rhs);
}
TEST_F(AssignmentStatementTest, CreationWithSource) {
auto* lhs = Expr("lhs");
auto* rhs = Expr("rhs");
auto* stmt =
create<AssignmentStatement>(Source{Source::Location{20, 2}}, lhs, rhs);
auto src = stmt->source;
EXPECT_EQ(src.range.begin.line, 20u);
EXPECT_EQ(src.range.begin.column, 2u);
}
TEST_F(AssignmentStatementTest, IsAssign) {
auto* lhs = Expr("lhs");
auto* rhs = Expr("rhs");
auto* stmt = create<AssignmentStatement>(lhs, rhs);
EXPECT_TRUE(stmt->Is<AssignmentStatement>());
}
TEST_F(AssignmentStatementTest, Assert_Null_LHS) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.create<AssignmentStatement>(nullptr, b.Expr(1));
},
"internal compiler error");
}
TEST_F(AssignmentStatementTest, Assert_Null_RHS) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.create<AssignmentStatement>(b.Expr(1), nullptr);
},
"internal compiler error");
}
TEST_F(AssignmentStatementTest, Assert_DifferentProgramID_LHS) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.create<AssignmentStatement>(b2.Expr("lhs"), b1.Expr("rhs"));
},
"internal compiler error");
}
TEST_F(AssignmentStatementTest, Assert_DifferentProgramID_RHS) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.create<AssignmentStatement>(b1.Expr("lhs"), b2.Expr("rhs"));
},
"internal compiler error");
}
} // namespace
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/type.h"
#include "src/tint/ast/alias.h"
#include "src/tint/ast/bool.h"
#include "src/tint/ast/f32.h"
#include "src/tint/ast/i32.h"
#include "src/tint/ast/matrix.h"
#include "src/tint/ast/pointer.h"
#include "src/tint/ast/sampler.h"
#include "src/tint/ast/texture.h"
#include "src/tint/ast/u32.h"
#include "src/tint/ast/vector.h"
#include "src/tint/symbol_table.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::Type);
namespace tint {
namespace ast {
Type::Type(ProgramID pid, const Source& src) : Base(pid, src) {}
Type::Type(Type&&) = default;
Type::~Type() = default;
} // namespace ast
} // namespace tint

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// Copyright 2021 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/atomic.h"
#include "src/tint/program_builder.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::Atomic);
namespace tint {
namespace ast {
Atomic::Atomic(ProgramID pid, const Source& src, const Type* const subtype)
: Base(pid, src), type(subtype) {}
std::string Atomic::FriendlyName(const SymbolTable& symbols) const {
std::ostringstream out;
out << "atomic<" << type->FriendlyName(symbols) << ">";
return out.str();
}
Atomic::Atomic(Atomic&&) = default;
Atomic::~Atomic() = default;
const Atomic* Atomic::Clone(CloneContext* ctx) const {
// Clone arguments outside of create() call to have deterministic ordering
auto src = ctx->Clone(source);
auto* ty = ctx->Clone(type);
return ctx->dst->create<Atomic>(src, ty);
}
} // namespace ast
} // namespace tint

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// Copyright 2021 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_AST_ATOMIC_H_
#define SRC_TINT_AST_ATOMIC_H_
#include <string>
#include "src/tint/ast/type.h"
namespace tint {
namespace ast {
/// An atomic type.
class Atomic final : public Castable<Atomic, Type> {
public:
/// Constructor
/// @param pid the identifier of the program that owns this node
/// @param src the source of this node
/// @param subtype the pointee type
Atomic(ProgramID pid, const Source& src, const Type* const subtype);
/// Move constructor
Atomic(Atomic&&);
~Atomic() override;
/// @param symbols the program's symbol table
/// @returns the name for this type that closely resembles how it would be
/// declared in WGSL.
std::string FriendlyName(const SymbolTable& symbols) const override;
/// Clones this type and all transitive types using the `CloneContext` `ctx`.
/// @param ctx the clone context
/// @return the newly cloned type
const Atomic* Clone(CloneContext* ctx) const override;
/// the pointee type
const Type* const type;
};
} // namespace ast
} // namespace tint
#endif // SRC_TINT_AST_ATOMIC_H_

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// Copyright 2021 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/atomic.h"
#include "src/tint/ast/i32.h"
#include "src/tint/ast/test_helper.h"
namespace tint {
namespace ast {
namespace {
using AstAtomicTest = TestHelper;
TEST_F(AstAtomicTest, Creation) {
auto* i32 = create<I32>();
auto* p = create<Atomic>(i32);
EXPECT_EQ(p->type, i32);
}
TEST_F(AstAtomicTest, FriendlyName) {
auto* i32 = create<I32>();
auto* p = create<Atomic>(i32);
EXPECT_EQ(p->FriendlyName(Symbols()), "atomic<i32>");
}
} // namespace
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/attribute.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::Attribute);
namespace tint {
namespace ast {
Attribute::~Attribute() = default;
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_AST_ATTRIBUTE_H_
#define SRC_TINT_AST_ATTRIBUTE_H_
#include <string>
#include <vector>
#include "src/tint/ast/node.h"
namespace tint {
namespace ast {
/// The base class for all attributes
class Attribute : public Castable<Attribute, Node> {
public:
~Attribute() override;
/// @returns the WGSL name for the attribute
virtual std::string Name() const = 0;
protected:
/// Constructor
/// @param pid the identifier of the program that owns this node
/// @param src the source of this node
Attribute(ProgramID pid, const Source& src) : Base(pid, src) {}
};
/// A list of attributes
using AttributeList = std::vector<const Attribute*>;
/// @param attributes the list of attributes to search
/// @returns true if `attributes` includes a attribute of type `T`
template <typename T>
bool HasAttribute(const AttributeList& attributes) {
for (auto* attr : attributes) {
if (attr->Is<T>()) {
return true;
}
}
return false;
}
/// @param attributes the list of attributes to search
/// @returns a pointer to `T` from `attributes` if found, otherwise nullptr.
template <typename T>
const T* GetAttribute(const AttributeList& attributes) {
for (auto* attr : attributes) {
if (attr->Is<T>()) {
return attr->As<T>();
}
}
return nullptr;
}
} // namespace ast
} // namespace tint
#endif // SRC_TINT_AST_ATTRIBUTE_H_

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/binary_expression.h"
#include "src/tint/program_builder.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::BinaryExpression);
namespace tint {
namespace ast {
BinaryExpression::BinaryExpression(ProgramID pid,
const Source& src,
BinaryOp o,
const Expression* l,
const Expression* r)
: Base(pid, src), op(o), lhs(l), rhs(r) {
TINT_ASSERT(AST, lhs);
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, lhs, program_id);
TINT_ASSERT(AST, rhs);
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, rhs, program_id);
TINT_ASSERT(AST, op != BinaryOp::kNone);
}
BinaryExpression::BinaryExpression(BinaryExpression&&) = default;
BinaryExpression::~BinaryExpression() = default;
const BinaryExpression* BinaryExpression::Clone(CloneContext* ctx) const {
// Clone arguments outside of create() call to have deterministic ordering
auto src = ctx->Clone(source);
auto* l = ctx->Clone(lhs);
auto* r = ctx->Clone(rhs);
return ctx->dst->create<BinaryExpression>(src, op, l, r);
}
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_AST_BINARY_EXPRESSION_H_
#define SRC_TINT_AST_BINARY_EXPRESSION_H_
#include "src/tint/ast/expression.h"
namespace tint {
namespace ast {
/// The operator type
enum class BinaryOp {
kNone = 0,
kAnd, // &
kOr, // |
kXor,
kLogicalAnd, // &&
kLogicalOr, // ||
kEqual,
kNotEqual,
kLessThan,
kGreaterThan,
kLessThanEqual,
kGreaterThanEqual,
kShiftLeft,
kShiftRight,
kAdd,
kSubtract,
kMultiply,
kDivide,
kModulo,
};
/// An binary expression
class BinaryExpression final : public Castable<BinaryExpression, Expression> {
public:
/// Constructor
/// @param program_id the identifier of the program that owns this node
/// @param source the binary expression source
/// @param op the operation type
/// @param lhs the left side of the expression
/// @param rhs the right side of the expression
BinaryExpression(ProgramID program_id,
const Source& source,
BinaryOp op,
const Expression* lhs,
const Expression* rhs);
/// Move constructor
BinaryExpression(BinaryExpression&&);
~BinaryExpression() override;
/// @returns true if the op is and
bool IsAnd() const { return op == BinaryOp::kAnd; }
/// @returns true if the op is or
bool IsOr() const { return op == BinaryOp::kOr; }
/// @returns true if the op is xor
bool IsXor() const { return op == BinaryOp::kXor; }
/// @returns true if the op is logical and
bool IsLogicalAnd() const { return op == BinaryOp::kLogicalAnd; }
/// @returns true if the op is logical or
bool IsLogicalOr() const { return op == BinaryOp::kLogicalOr; }
/// @returns true if the op is equal
bool IsEqual() const { return op == BinaryOp::kEqual; }
/// @returns true if the op is not equal
bool IsNotEqual() const { return op == BinaryOp::kNotEqual; }
/// @returns true if the op is less than
bool IsLessThan() const { return op == BinaryOp::kLessThan; }
/// @returns true if the op is greater than
bool IsGreaterThan() const { return op == BinaryOp::kGreaterThan; }
/// @returns true if the op is less than equal
bool IsLessThanEqual() const { return op == BinaryOp::kLessThanEqual; }
/// @returns true if the op is greater than equal
bool IsGreaterThanEqual() const { return op == BinaryOp::kGreaterThanEqual; }
/// @returns true if the op is shift left
bool IsShiftLeft() const { return op == BinaryOp::kShiftLeft; }
/// @returns true if the op is shift right
bool IsShiftRight() const { return op == BinaryOp::kShiftRight; }
/// @returns true if the op is add
bool IsAdd() const { return op == BinaryOp::kAdd; }
/// @returns true if the op is subtract
bool IsSubtract() const { return op == BinaryOp::kSubtract; }
/// @returns true if the op is multiply
bool IsMultiply() const { return op == BinaryOp::kMultiply; }
/// @returns true if the op is divide
bool IsDivide() const { return op == BinaryOp::kDivide; }
/// @returns true if the op is modulo
bool IsModulo() const { return op == BinaryOp::kModulo; }
/// @returns true if the op is an arithmetic operation
bool IsArithmetic() const;
/// @returns true if the op is a comparison operation
bool IsComparison() const;
/// @returns true if the op is a bitwise operation
bool IsBitwise() const;
/// @returns true if the op is a bit shift operation
bool IsBitshift() const;
/// @returns true if the op is a logical expression
bool IsLogical() const;
/// Clones this node and all transitive child nodes using the `CloneContext`
/// `ctx`.
/// @param ctx the clone context
/// @return the newly cloned node
const BinaryExpression* Clone(CloneContext* ctx) const override;
/// the binary op type
const BinaryOp op;
/// the left side expression
const Expression* const lhs;
/// the right side expression
const Expression* const rhs;
};
/// @param op the operator
/// @returns true if the op is an arithmetic operation
inline bool IsArithmetic(BinaryOp op) {
switch (op) {
case ast::BinaryOp::kAdd:
case ast::BinaryOp::kSubtract:
case ast::BinaryOp::kMultiply:
case ast::BinaryOp::kDivide:
case ast::BinaryOp::kModulo:
return true;
default:
return false;
}
}
/// @param op the operator
/// @returns true if the op is a comparison operation
inline bool IsComparison(BinaryOp op) {
switch (op) {
case ast::BinaryOp::kEqual:
case ast::BinaryOp::kNotEqual:
case ast::BinaryOp::kLessThan:
case ast::BinaryOp::kLessThanEqual:
case ast::BinaryOp::kGreaterThan:
case ast::BinaryOp::kGreaterThanEqual:
return true;
default:
return false;
}
}
/// @param op the operator
/// @returns true if the op is a bitwise operation
inline bool IsBitwise(BinaryOp op) {
switch (op) {
case ast::BinaryOp::kAnd:
case ast::BinaryOp::kOr:
case ast::BinaryOp::kXor:
return true;
default:
return false;
}
}
/// @param op the operator
/// @returns true if the op is a bit shift operation
inline bool IsBitshift(BinaryOp op) {
switch (op) {
case ast::BinaryOp::kShiftLeft:
case ast::BinaryOp::kShiftRight:
return true;
default:
return false;
}
}
inline bool BinaryExpression::IsLogical() const {
switch (op) {
case ast::BinaryOp::kLogicalAnd:
case ast::BinaryOp::kLogicalOr:
return true;
default:
return false;
}
}
inline bool BinaryExpression::IsArithmetic() const {
return ast::IsArithmetic(op);
}
inline bool BinaryExpression::IsComparison() const {
return ast::IsComparison(op);
}
inline bool BinaryExpression::IsBitwise() const {
return ast::IsBitwise(op);
}
inline bool BinaryExpression::IsBitshift() const {
return ast::IsBitshift(op);
}
/// @returns the human readable name of the given BinaryOp
/// @param op the BinaryOp
constexpr const char* FriendlyName(BinaryOp op) {
switch (op) {
case BinaryOp::kNone:
return "none";
case BinaryOp::kAnd:
return "and";
case BinaryOp::kOr:
return "or";
case BinaryOp::kXor:
return "xor";
case BinaryOp::kLogicalAnd:
return "logical_and";
case BinaryOp::kLogicalOr:
return "logical_or";
case BinaryOp::kEqual:
return "equal";
case BinaryOp::kNotEqual:
return "not_equal";
case BinaryOp::kLessThan:
return "less_than";
case BinaryOp::kGreaterThan:
return "greater_than";
case BinaryOp::kLessThanEqual:
return "less_than_equal";
case BinaryOp::kGreaterThanEqual:
return "greater_than_equal";
case BinaryOp::kShiftLeft:
return "shift_left";
case BinaryOp::kShiftRight:
return "shift_right";
case BinaryOp::kAdd:
return "add";
case BinaryOp::kSubtract:
return "subtract";
case BinaryOp::kMultiply:
return "multiply";
case BinaryOp::kDivide:
return "divide";
case BinaryOp::kModulo:
return "modulo";
}
return "INVALID";
}
/// @param out the std::ostream to write to
/// @param op the BinaryOp
/// @return the std::ostream so calls can be chained
inline std::ostream& operator<<(std::ostream& out, BinaryOp op) {
out << FriendlyName(op);
return out;
}
} // namespace ast
} // namespace tint
#endif // SRC_TINT_AST_BINARY_EXPRESSION_H_

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "gtest/gtest-spi.h"
#include "src/tint/ast/test_helper.h"
namespace tint {
namespace ast {
namespace {
using BinaryExpressionTest = TestHelper;
TEST_F(BinaryExpressionTest, Creation) {
auto* lhs = Expr("lhs");
auto* rhs = Expr("rhs");
auto* r = create<BinaryExpression>(BinaryOp::kEqual, lhs, rhs);
EXPECT_EQ(r->lhs, lhs);
EXPECT_EQ(r->rhs, rhs);
EXPECT_EQ(r->op, BinaryOp::kEqual);
}
TEST_F(BinaryExpressionTest, Creation_WithSource) {
auto* lhs = Expr("lhs");
auto* rhs = Expr("rhs");
auto* r = create<BinaryExpression>(Source{Source::Location{20, 2}},
BinaryOp::kEqual, lhs, rhs);
auto src = r->source;
EXPECT_EQ(src.range.begin.line, 20u);
EXPECT_EQ(src.range.begin.column, 2u);
}
TEST_F(BinaryExpressionTest, IsBinary) {
auto* lhs = Expr("lhs");
auto* rhs = Expr("rhs");
auto* r = create<BinaryExpression>(BinaryOp::kEqual, lhs, rhs);
EXPECT_TRUE(r->Is<BinaryExpression>());
}
TEST_F(BinaryExpressionTest, Assert_Null_LHS) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.create<BinaryExpression>(BinaryOp::kEqual, nullptr, b.Expr("rhs"));
},
"internal compiler error");
}
TEST_F(BinaryExpressionTest, Assert_Null_RHS) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.create<BinaryExpression>(BinaryOp::kEqual, b.Expr("lhs"), nullptr);
},
"internal compiler error");
}
TEST_F(BinaryExpressionTest, Assert_DifferentProgramID_LHS) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.create<BinaryExpression>(BinaryOp::kEqual, b2.Expr("lhs"),
b1.Expr("rhs"));
},
"internal compiler error");
}
TEST_F(BinaryExpressionTest, Assert_DifferentProgramID_RHS) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.create<BinaryExpression>(BinaryOp::kEqual, b1.Expr("lhs"),
b2.Expr("rhs"));
},
"internal compiler error");
}
} // namespace
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/binding_attribute.h"
#include <string>
#include "src/tint/program_builder.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::BindingAttribute);
namespace tint {
namespace ast {
BindingAttribute::BindingAttribute(ProgramID pid,
const Source& src,
uint32_t val)
: Base(pid, src), value(val) {}
BindingAttribute::~BindingAttribute() = default;
std::string BindingAttribute::Name() const {
return "binding";
}
const BindingAttribute* BindingAttribute::Clone(CloneContext* ctx) const {
// Clone arguments outside of create() call to have deterministic ordering
auto src = ctx->Clone(source);
return ctx->dst->create<BindingAttribute>(src, value);
}
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_AST_BINDING_ATTRIBUTE_H_
#define SRC_TINT_AST_BINDING_ATTRIBUTE_H_
#include <string>
#include "src/tint/ast/attribute.h"
namespace tint {
namespace ast {
/// A binding attribute
class BindingAttribute final : public Castable<BindingAttribute, Attribute> {
public:
/// Constructor
/// @param pid the identifier of the program that owns this node
/// @param src the source of this node
/// @param value the binding value
BindingAttribute(ProgramID pid, const Source& src, uint32_t value);
~BindingAttribute() override;
/// @returns the WGSL name for the attribute
std::string Name() const override;
/// Clones this node and all transitive child nodes using the `CloneContext`
/// `ctx`.
/// @param ctx the clone context
/// @return the newly cloned node
const BindingAttribute* Clone(CloneContext* ctx) const override;
/// the binding value
const uint32_t value;
};
} // namespace ast
} // namespace tint
#endif // SRC_TINT_AST_BINDING_ATTRIBUTE_H_

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/test_helper.h"
namespace tint {
namespace ast {
namespace {
using BindingAttributeTest = TestHelper;
TEST_F(BindingAttributeTest, Creation) {
auto* d = create<BindingAttribute>(2);
EXPECT_EQ(2u, d->value);
}
} // namespace
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/bitcast_expression.h"
#include "src/tint/program_builder.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::BitcastExpression);
namespace tint {
namespace ast {
BitcastExpression::BitcastExpression(ProgramID pid,
const Source& src,
const Type* t,
const Expression* e)
: Base(pid, src), type(t), expr(e) {
TINT_ASSERT(AST, type);
TINT_ASSERT(AST, expr);
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, expr, program_id);
}
BitcastExpression::BitcastExpression(BitcastExpression&&) = default;
BitcastExpression::~BitcastExpression() = default;
const BitcastExpression* BitcastExpression::Clone(CloneContext* ctx) const {
// Clone arguments outside of create() call to have deterministic ordering
auto src = ctx->Clone(source);
auto* t = ctx->Clone(type);
auto* e = ctx->Clone(expr);
return ctx->dst->create<BitcastExpression>(src, t, e);
}
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_AST_BITCAST_EXPRESSION_H_
#define SRC_TINT_AST_BITCAST_EXPRESSION_H_
#include "src/tint/ast/expression.h"
namespace tint {
namespace ast {
// Forward declaration
class Type;
/// A bitcast expression
class BitcastExpression final : public Castable<BitcastExpression, Expression> {
public:
/// Constructor
/// @param program_id the identifier of the program that owns this node
/// @param source the bitcast expression source
/// @param type the type
/// @param expr the expr
BitcastExpression(ProgramID program_id,
const Source& source,
const Type* type,
const Expression* expr);
/// Move constructor
BitcastExpression(BitcastExpression&&);
~BitcastExpression() override;
/// Clones this node and all transitive child nodes using the `CloneContext`
/// `ctx`.
/// @param ctx the clone context
/// @return the newly cloned node
const BitcastExpression* Clone(CloneContext* ctx) const override;
/// the target cast type
const Type* const type;
/// the expression
const Expression* const expr;
};
} // namespace ast
} // namespace tint
#endif // SRC_TINT_AST_BITCAST_EXPRESSION_H_

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/bitcast_expression.h"
#include "gtest/gtest-spi.h"
#include "src/tint/ast/test_helper.h"
namespace tint {
namespace ast {
namespace {
using BitcastExpressionTest = TestHelper;
TEST_F(BitcastExpressionTest, Create) {
auto* expr = Expr("expr");
auto* exp = create<BitcastExpression>(ty.f32(), expr);
EXPECT_TRUE(exp->type->Is<ast::F32>());
ASSERT_EQ(exp->expr, expr);
}
TEST_F(BitcastExpressionTest, CreateWithSource) {
auto* expr = Expr("expr");
auto* exp = create<BitcastExpression>(Source{Source::Location{20, 2}},
ty.f32(), expr);
auto src = exp->source;
EXPECT_EQ(src.range.begin.line, 20u);
EXPECT_EQ(src.range.begin.column, 2u);
}
TEST_F(BitcastExpressionTest, IsBitcast) {
auto* expr = Expr("expr");
auto* exp = create<BitcastExpression>(ty.f32(), expr);
EXPECT_TRUE(exp->Is<BitcastExpression>());
}
TEST_F(BitcastExpressionTest, Assert_Null_Type) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.create<BitcastExpression>(nullptr, b.Expr("idx"));
},
"internal compiler error");
}
TEST_F(BitcastExpressionTest, Assert_Null_Expr) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.create<BitcastExpression>(b.ty.f32(), nullptr);
},
"internal compiler error");
}
TEST_F(BitcastExpressionTest, Assert_DifferentProgramID_Expr) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.create<BitcastExpression>(b1.ty.f32(), b2.Expr("idx"));
},
"internal compiler error");
}
} // namespace
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/block_statement.h"
#include "src/tint/program_builder.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::BlockStatement);
namespace tint {
namespace ast {
BlockStatement::BlockStatement(ProgramID pid,
const Source& src,
const StatementList& stmts)
: Base(pid, src), statements(std::move(stmts)) {
for (auto* stmt : statements) {
TINT_ASSERT(AST, stmt);
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(AST, stmt, program_id);
}
}
BlockStatement::BlockStatement(BlockStatement&&) = default;
BlockStatement::~BlockStatement() = default;
const BlockStatement* BlockStatement::Clone(CloneContext* ctx) const {
// Clone arguments outside of create() call to have deterministic ordering
auto src = ctx->Clone(source);
auto stmts = ctx->Clone(statements);
return ctx->dst->create<BlockStatement>(src, stmts);
}
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_AST_BLOCK_STATEMENT_H_
#define SRC_TINT_AST_BLOCK_STATEMENT_H_
#include <utility>
#include "src/tint/ast/statement.h"
namespace tint {
namespace ast {
/// A block statement
class BlockStatement final : public Castable<BlockStatement, Statement> {
public:
/// Constructor
/// @param program_id the identifier of the program that owns this node
/// @param source the block statement source
/// @param statements the statements
BlockStatement(ProgramID program_id,
const Source& source,
const StatementList& statements);
/// Move constructor
BlockStatement(BlockStatement&&);
~BlockStatement() override;
/// @returns true if the block has no statements
bool Empty() const { return statements.empty(); }
/// @returns the last statement in the block or nullptr if block empty
const Statement* Last() const {
return statements.empty() ? nullptr : statements.back();
}
/// Clones this node and all transitive child nodes using the `CloneContext`
/// `ctx`.
/// @param ctx the clone context
/// @return the newly cloned node
const BlockStatement* Clone(CloneContext* ctx) const override;
/// the statement list
const StatementList statements;
};
} // namespace ast
} // namespace tint
#endif // SRC_TINT_AST_BLOCK_STATEMENT_H_

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "gtest/gtest-spi.h"
#include "src/tint/ast/discard_statement.h"
#include "src/tint/ast/if_statement.h"
#include "src/tint/ast/test_helper.h"
namespace tint {
namespace ast {
namespace {
using BlockStatementTest = TestHelper;
TEST_F(BlockStatementTest, Creation) {
auto* d = create<DiscardStatement>();
auto* ptr = d;
auto* b = create<BlockStatement>(StatementList{d});
ASSERT_EQ(b->statements.size(), 1u);
EXPECT_EQ(b->statements[0], ptr);
}
TEST_F(BlockStatementTest, Creation_WithSource) {
auto* b = create<BlockStatement>(Source{Source::Location{20, 2}},
ast::StatementList{});
auto src = b->source;
EXPECT_EQ(src.range.begin.line, 20u);
EXPECT_EQ(src.range.begin.column, 2u);
}
TEST_F(BlockStatementTest, IsBlock) {
auto* b = create<BlockStatement>(ast::StatementList{});
EXPECT_TRUE(b->Is<BlockStatement>());
}
TEST_F(BlockStatementTest, Assert_Null_Statement) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.create<BlockStatement>(ast::StatementList{nullptr});
},
"internal compiler error");
}
TEST_F(BlockStatementTest, Assert_DifferentProgramID_Statement) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.create<BlockStatement>(
ast::StatementList{b2.create<DiscardStatement>()});
},
"internal compiler error");
}
} // namespace
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/bool.h"
#include "src/tint/program_builder.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::Bool);
namespace tint {
namespace ast {
Bool::Bool(ProgramID pid, const Source& src) : Base(pid, src) {}
Bool::Bool(Bool&&) = default;
Bool::~Bool() = default;
std::string Bool::FriendlyName(const SymbolTable&) const {
return "bool";
}
const Bool* Bool::Clone(CloneContext* ctx) const {
auto src = ctx->Clone(source);
return ctx->dst->create<Bool>(src);
}
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_AST_BOOL_H_
#define SRC_TINT_AST_BOOL_H_
#include <string>
#include "src/tint/ast/type.h"
// X11 likes to #define Bool leading to confusing error messages.
// If its defined, undefine it.
#ifdef Bool
#undef Bool
#endif
namespace tint {
namespace ast {
/// A boolean type
class Bool final : public Castable<Bool, Type> {
public:
/// Constructor
/// @param pid the identifier of the program that owns this node
/// @param src the source of this node
Bool(ProgramID pid, const Source& src);
/// Move constructor
Bool(Bool&&);
~Bool() override;
/// @param symbols the program's symbol table
/// @returns the name for this type that closely resembles how it would be
/// declared in WGSL.
std::string FriendlyName(const SymbolTable& symbols) const override;
/// Clones this type and all transitive types using the `CloneContext` `ctx`.
/// @param ctx the clone context
/// @return the newly cloned type
const Bool* Clone(CloneContext* ctx) const override;
};
} // namespace ast
} // namespace tint
#endif // SRC_TINT_AST_BOOL_H_

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/bool_literal_expression.h"
#include "src/tint/program_builder.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::BoolLiteralExpression);
namespace tint {
namespace ast {
BoolLiteralExpression::BoolLiteralExpression(ProgramID pid,
const Source& src,
bool val)
: Base(pid, src), value(val) {}
BoolLiteralExpression::~BoolLiteralExpression() = default;
const BoolLiteralExpression* BoolLiteralExpression::Clone(
CloneContext* ctx) const {
// Clone arguments outside of create() call to have deterministic ordering
auto src = ctx->Clone(source);
return ctx->dst->create<BoolLiteralExpression>(src, value);
}
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_AST_BOOL_LITERAL_EXPRESSION_H_
#define SRC_TINT_AST_BOOL_LITERAL_EXPRESSION_H_
#include <string>
#include "src/tint/ast/literal_expression.h"
namespace tint {
namespace ast {
/// A boolean literal
class BoolLiteralExpression final
: public Castable<BoolLiteralExpression, LiteralExpression> {
public:
/// Constructor
/// @param pid the identifier of the program that owns this node
/// @param src the source of this node
/// @param value the bool literals value
BoolLiteralExpression(ProgramID pid, const Source& src, bool value);
~BoolLiteralExpression() override;
/// Clones this node and all transitive child nodes using the `CloneContext`
/// `ctx`.
/// @param ctx the clone context
/// @return the newly cloned node
const BoolLiteralExpression* Clone(CloneContext* ctx) const override;
/// The boolean literal value
const bool value;
};
} // namespace ast
} // namespace tint
#endif // SRC_TINT_AST_BOOL_LITERAL_EXPRESSION_H_

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/test_helper.h"
namespace tint {
namespace ast {
namespace {
using BoolLiteralExpressionTest = TestHelper;
TEST_F(BoolLiteralExpressionTest, True) {
auto* b = create<BoolLiteralExpression>(true);
ASSERT_TRUE(b->Is<BoolLiteralExpression>());
ASSERT_TRUE(b->value);
}
TEST_F(BoolLiteralExpressionTest, False) {
auto* b = create<BoolLiteralExpression>(false);
ASSERT_TRUE(b->Is<BoolLiteralExpression>());
ASSERT_FALSE(b->value);
}
} // namespace
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/bool.h"
#include "src/tint/ast/test_helper.h"
namespace tint {
namespace ast {
namespace {
using AstBoolTest = TestHelper;
TEST_F(AstBoolTest, FriendlyName) {
auto* b = create<Bool>();
EXPECT_EQ(b->FriendlyName(Symbols()), "bool");
}
} // namespace
} // namespace ast
} // namespace tint

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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/break_statement.h"
#include "src/tint/program_builder.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::BreakStatement);
namespace tint {
namespace ast {
BreakStatement::BreakStatement(ProgramID pid, const Source& src)
: Base(pid, src) {}
BreakStatement::BreakStatement(BreakStatement&&) = default;
BreakStatement::~BreakStatement() = default;
const BreakStatement* BreakStatement::Clone(CloneContext* ctx) const {
// Clone arguments outside of create() call to have deterministic ordering
auto src = ctx->Clone(source);
return ctx->dst->create<BreakStatement>(src);
}
} // namespace ast
} // namespace tint

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