# 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")

# Fuzzers - Libfuzzer based fuzzing targets for Chromium
# To run the fuzzers outside of Chromium, use the CMake based builds.

if (build_with_chromium) {
  import("//testing/libfuzzer/fuzzer_test.gni")

  # fuzzer_test doesn't have configs members, so need to define them in an empty
  # source_set.

  source_set("tint_fuzzer_common") {
    public_configs = [
      "${tint_root_dir}/src:tint_config",
      "${tint_root_dir}/src:tint_common_config",
    ]

    public_deps = [
      "${tint_root_dir}/src:libtint",
      "${tint_spirv_tools_dir}/:spvtools_val",
    ]

    sources = [
      "tint_common_fuzzer.cc",
      "tint_common_fuzzer.h",
    ]
  }

  if (tint_build_wgsl_reader) {
    fuzzer_test("tint_wgsl_reader_fuzzer") {
      sources = [ "tint_wgsl_reader_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }
  }

  if (tint_build_wgsl_reader && tint_build_wgsl_writer) {
    fuzzer_test("tint_wgsl_reader_wgsl_writer_fuzzer") {
      sources = [ "tint_wgsl_reader_wgsl_writer_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }
  }

  if (tint_build_wgsl_reader && tint_build_spv_writer) {
    fuzzer_test("tint_wgsl_reader_spv_writer_fuzzer") {
      sources = [ "tint_wgsl_reader_spv_writer_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }

    fuzzer_test("tint_all_transforms_fuzzer") {
      sources = [ "tint_all_transforms_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }

    fuzzer_test("tint_binding_remapper_fuzzer") {
      sources = [ "tint_binding_remapper_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }

    fuzzer_test("tint_bound_array_accessors_fuzzer") {
      sources = [ "tint_bound_array_accessors_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }

    # TODO(tint:753): Remove once transform used by sanitizers
    fuzzer_test("tint_emit_vertex_point_size_fuzzer") {
      sources = [ "tint_emit_vertex_point_size_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }

    fuzzer_test("tint_first_index_offset_fuzzer") {
      sources = [ "tint_first_index_offset_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }

    fuzzer_test("tint_inspector_fuzzer") {
      sources = [ "tint_inspector_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }
  }

  if (tint_build_wgsl_reader && tint_build_hlsl_writer) {
    fuzzer_test("tint_hlsl_transform_fuzzer") {
      sources = [ "tint_hlsl_transform_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }

    fuzzer_test("tint_wgsl_reader_hlsl_writer_fuzzer") {
      sources = [ "tint_wgsl_reader_hlsl_writer_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }
  }

  if (tint_build_wgsl_reader && tint_build_msl_writer) {
    fuzzer_test("tint_msl_transform_fuzzer") {
      sources = [ "tint_msl_transform_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }

    fuzzer_test("tint_wgsl_reader_msl_writer_fuzzer") {
      sources = [ "tint_wgsl_reader_msl_writer_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }
  }

  if (tint_build_spv_reader) {
    fuzzer_test("tint_spv_reader_fuzzer") {
      sources = [ "tint_spv_reader_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }
  }

  if (tint_build_spv_reader && tint_build_wgsl_writer) {
    fuzzer_test("tint_spv_reader_wgsl_writer_fuzzer") {
      sources = [ "tint_spv_reader_wgsl_writer_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }
  }

  if (tint_build_spv_reader && tint_build_spv_writer) {
    fuzzer_test("tint_spv_reader_spv_writer_fuzzer") {
      sources = [ "tint_spv_reader_spv_writer_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }
  }

  if (tint_build_spv_reader && tint_build_hlsl_writer) {
    fuzzer_test("tint_spv_reader_hlsl_writer_fuzzer") {
      sources = [ "tint_spv_reader_hlsl_writer_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }
  }

  if (tint_build_spv_reader && tint_build_msl_writer) {
    fuzzer_test("tint_spv_reader_msl_writer_fuzzer") {
      sources = [ "tint_spv_reader_msl_writer_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }
  }

  if (tint_build_wgsl_reader && tint_build_wgsl_writer) {
    fuzzer_test("tint_ast_clone_fuzzer") {
      sources = [ "tint_ast_clone_fuzzer.cc" ]
      deps = [ ":tint_fuzzer_common" ]
    }
  }

  group("fuzzers") {
    testonly = true
    deps = []

    if (tint_build_wgsl_reader) {
      deps += [ ":tint_wgsl_reader_fuzzer" ]
    }
    if (tint_build_wgsl_reader && tint_build_wgsl_writer) {
      deps += [ ":tint_wgsl_reader_wgsl_writer_fuzzer" ]
    }
    if (tint_build_wgsl_reader && tint_build_spv_writer) {
      deps += [
        ":tint_all_transforms_fuzzer",
        ":tint_binding_remapper_fuzzer",
        ":tint_bound_array_accessors_fuzzer",
        ":tint_emit_vertex_point_size_fuzzer",  # TODO(tint:753): Remove once
                                                # transform used by sanitizers
        ":tint_first_index_offset_fuzzer",
        ":tint_inspector_fuzzer",
        ":tint_wgsl_reader_spv_writer_fuzzer",
      ]
    }
    if (tint_build_wgsl_reader && tint_build_hlsl_writer) {
      deps += [
        ":tint_hlsl_transform_fuzzer",
        ":tint_wgsl_reader_hlsl_writer_fuzzer",
      ]
    }
    if (tint_build_wgsl_reader && tint_build_msl_writer) {
      deps += [
        ":tint_msl_transform_fuzzer",
        ":tint_wgsl_reader_msl_writer_fuzzer",
      ]
    }
    if (tint_build_spv_reader) {
      deps += [ ":tint_spv_reader_fuzzer" ]
    }
    if (tint_build_spv_reader && tint_build_wgsl_writer) {
      deps += [ ":tint_spv_reader_wgsl_writer_fuzzer" ]
    }
    if (tint_build_spv_reader && tint_build_spv_writer) {
      deps += [ ":tint_spv_reader_spv_writer_fuzzer" ]
    }
    if (tint_build_spv_reader && tint_build_hlsl_writer) {
      deps += [ ":tint_spv_reader_hlsl_writer_fuzzer" ]
    }
    if (tint_build_spv_reader && tint_build_msl_writer) {
      deps += [ ":tint_spv_reader_msl_writer_fuzzer" ]
    }
    if (tint_build_wgsl_reader && tint_build_wgsl_writer) {
      deps += [ ":tint_ast_clone_fuzzer" ]
    }
  }
} else {
  group("fuzzers") {
  }
}