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dawn-cmake/src/tint/resolver/load_test.cc
Ben Clayton 971318f7a2 tint: Replace all remaining AST types with ast::Type 
This CL removes the following AST nodes:
* ast::Array
* ast::Atomic
* ast::Matrix
* ast::MultisampledTexture
* ast::Pointer
* ast::SampledTexture
* ast::Texture
* ast::TypeName
* ast::Vector

ast::Type, which used to be the base class for all AST types, is now a
thin wrapper around ast::IdentifierExpression. All types are now
referred to using their type name.

The resolver now handles type resolution and validation of the types
listed above based on the TemplateIdentifier arguments.

Other changes:
* ProgramBuilder has undergone substantial refactoring.
* ProgramBuilder helpers for type inferencing is now more explicit.
  Instead of passing 'nullptr', a new 'Infer' template argument is
  passed.
* ast::CheckIdentifier() is used for more tests that check identifiers,
  including types.

Bug: tint:1810
Change-Id: I8e739ef49435dc1c20a462f3ec5ba265661a7edb
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/118723
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
2023-02-14 13:52:43 +00:00

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// Copyright 2022 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/sem/load.h"
#include "gmock/gmock.h"
#include "src/tint/resolver/resolver.h"
#include "src/tint/resolver/resolver_test_helper.h"
#include "src/tint/sem/test_helper.h"
#include "src/tint/type/reference.h"
#include "src/tint/type/texture_dimension.h"
using namespace tint::number_suffixes; // NOLINT
namespace tint::resolver {
namespace {
using ResolverLoadTest = ResolverTest;
TEST_F(ResolverLoadTest, VarInitializer) {
// var ref = 1i;
// var v = ref;
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(1_i)), //
Var("v", ident));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::I32>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::I32>());
}
TEST_F(ResolverLoadTest, LetInitializer) {
// var ref = 1i;
// let l = ref;
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(1_i)), //
Let("l", ident));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::I32>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::I32>());
}
TEST_F(ResolverLoadTest, Assignment) {
// var ref = 1i;
// var v : i32;
// v = ref;
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(1_i)), //
Var("v", ty.i32()), //
Assign("v", ident));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::I32>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::I32>());
}
TEST_F(ResolverLoadTest, CompoundAssignment) {
// var ref = 1i;
// var v : i32;
// v += ref;
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(1_i)), //
Var("v", ty.i32()), //
CompoundAssign("v", ident, ast::BinaryOp::kAdd));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::I32>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::I32>());
}
TEST_F(ResolverLoadTest, UnaryOp) {
// var ref = 1i;
// var v = -ref;
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(1_i)), //
Var("v", Negation(ident)));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::I32>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::I32>());
}
TEST_F(ResolverLoadTest, UnaryOp_NoLoad) {
// var ref = 1i;
// let v = &ref;
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(1_i)), //
Let("v", AddressOf(ident)));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* var_user = Sem().Get<sem::VariableUser>(ident);
ASSERT_NE(var_user, nullptr);
EXPECT_TRUE(var_user->Type()->Is<type::Reference>());
EXPECT_TRUE(var_user->Type()->UnwrapRef()->Is<type::I32>());
}
TEST_F(ResolverLoadTest, BinaryOp) {
// var ref = 1i;
// var v = ref * 1i;
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(1_i)), //
Var("v", Mul(ident, 1_i)));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::I32>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::I32>());
}
TEST_F(ResolverLoadTest, Index) {
// var ref = 1i;
// var v = array<i32, 3>(1i, 2i, 3i)[ref];
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(1_i)), //
IndexAccessor(array<i32, 3>(1_i, 2_i, 3_i), ident));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::I32>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::I32>());
}
TEST_F(ResolverLoadTest, MultiComponentSwizzle) {
// var ref = vec4(1);
// var v = ref.xyz;
auto* ident = Expr("ref");
WrapInFunction(Var("ref", vec4<i32>(1_i)), //
Var("v", MemberAccessor(ident, "xyz")));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::Vector>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::Vector>());
}
TEST_F(ResolverLoadTest, Bitcast) {
// var ref = 1f;
// var v = bitcast<i32>(ref);
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(1_f)), //
Bitcast<i32>(ident));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::F32>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::F32>());
}
TEST_F(ResolverLoadTest, BuiltinArg) {
// var ref = 1f;
// var v = abs(ref);
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(1_f)), //
Call("abs", ident));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::F32>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::F32>());
}
TEST_F(ResolverLoadTest, FunctionArg) {
// fn f(x : f32) {}
// var ref = 1f;
// f(ref);
Func("f", utils::Vector{Param("x", ty.f32())}, ty.void_(), utils::Empty);
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(1_f)), //
CallStmt(Call("f", ident)));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::F32>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::F32>());
}
TEST_F(ResolverLoadTest, FunctionArg_Handles) {
// @group(0) @binding(0) var t : texture_2d<f32>;
// @group(0) @binding(1) var s : sampler;
// fn f(tp : texture_2d<f32>, sp : sampler) -> vec4<f32> {
// return textureSampleLevel(tp, sp, vec2(), 0);
// }
// f(t, s);
GlobalVar("t", ty.sampled_texture(type::TextureDimension::k2d, ty.f32()),
utils::Vector{Group(0_a), Binding(0_a)});
GlobalVar("s", ty.sampler(type::SamplerKind::kSampler),
utils::Vector{Group(0_a), Binding(1_a)});
Func("f",
utils::Vector{
Param("tp", ty.sampled_texture(type::TextureDimension::k2d, ty.f32())),
Param("sp", ty.sampler(type::SamplerKind::kSampler)),
},
ty.vec4<f32>(),
utils::Vector{
Return(Call("textureSampleLevel", "tp", "sp", vec2<f32>(), 0_a)),
});
auto* t_ident = Expr("t");
auto* s_ident = Expr("s");
WrapInFunction(CallStmt(Call("f", t_ident, s_ident)));
ASSERT_TRUE(r()->Resolve()) << r()->error();
{
auto* load = Sem().Get<sem::Load>(t_ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::SampledTexture>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::SampledTexture>());
}
{
auto* load = Sem().Get<sem::Load>(s_ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::Sampler>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::Sampler>());
}
}
TEST_F(ResolverLoadTest, FunctionReturn) {
// var ref = 1f;
// return ref;
auto* ident = Expr("ref");
Func("f", utils::Empty, ty.f32(),
utils::Vector{
Decl(Var("ref", Expr(1_f))),
Return(ident),
});
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::F32>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::F32>());
}
TEST_F(ResolverLoadTest, IfCond) {
// var ref = false;
// if (ref) {}
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(false)), //
If(ident, Block()));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::Bool>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::Bool>());
}
TEST_F(ResolverLoadTest, Switch) {
// var ref = 1i;
// switch (ref) {
// default:
// }
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(1_i)), //
Switch(ident, DefaultCase()));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::I32>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::I32>());
}
TEST_F(ResolverLoadTest, BreakIfCond) {
// var ref = false;
// loop {
// continuing {
// break if (ref);
// }
// }
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(false)), //
Loop(Block(), Block(BreakIf(ident))));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::Bool>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::Bool>());
}
TEST_F(ResolverLoadTest, ForCond) {
// var ref = false;
// for (; ref; ) {}
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(false)), //
For(nullptr, ident, nullptr, Block()));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::Bool>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::Bool>());
}
TEST_F(ResolverLoadTest, WhileCond) {
// var ref = false;
// while (ref) {}
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(false)), //
While(ident, Block()));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* load = Sem().Get<sem::Load>(ident);
ASSERT_NE(load, nullptr);
EXPECT_TRUE(load->Type()->Is<type::Bool>());
EXPECT_TRUE(load->Reference()->Type()->Is<type::Reference>());
EXPECT_TRUE(load->Reference()->Type()->UnwrapRef()->Is<type::Bool>());
}
TEST_F(ResolverLoadTest, AddressOf) {
// var ref = 1i;
// let l = &ref;
auto* ident = Expr("ref");
WrapInFunction(Var("ref", Expr(1_i)), //
Let("l", AddressOf(ident)));
ASSERT_TRUE(r()->Resolve()) << r()->error();
auto* no_load = Sem().GetVal(ident);
ASSERT_NE(no_load, nullptr);
EXPECT_TRUE(no_load->Type()->Is<type::Reference>()); // No load
}
} // namespace
} // namespace tint::resolver
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