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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"
#include "src/tint/clone_context.h"
namespace tint::ast {
namespace {
using ModuleTest = TestHelper;
TEST_F(ModuleTest, Creation) {
EXPECT_EQ(Program(std::move(*this)).AST().Functions().Length(), 0u);
}
TEST_F(ModuleTest, LookupFunction) {
auto* func = Func("main", {}, ty.f32(), {});
Program program(std::move(*this));
EXPECT_EQ(func, program.AST().Functions().Find(program.Symbols().Get("main")));
}
TEST_F(ModuleTest, LookupFunctionMissing) {
Program program(std::move(*this));
EXPECT_EQ(nullptr, program.AST().Functions().Find(program.Symbols().Get("Missing")));
}
TEST_F(ModuleTest, Assert_Null_GlobalVariable) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder builder;
builder.AST().AddGlobalVariable(nullptr);
},
"internal compiler error");
}
TEST_F(ModuleTest, Assert_Null_TypeDecl) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder builder;
builder.AST().AddTypeDecl(nullptr);
},
"internal compiler error");
}
TEST_F(ModuleTest, Assert_DifferentProgramID_Function) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.AST().AddFunction(b2.create<ast::Function>(b2.Symbols().Register("func"),
utils::Empty, b2.ty.f32(), b2.Block(),
utils::Empty, utils::Empty));
},
"internal compiler error");
}
TEST_F(ModuleTest, Assert_DifferentProgramID_GlobalVariable) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.AST().AddGlobalVariable(b2.Var("var", b2.ty.i32(), ast::StorageClass::kPrivate));
},
"internal compiler error");
}
TEST_F(ModuleTest, Assert_Null_Function) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder builder;
builder.AST().AddFunction(nullptr);
},
"internal compiler error");
}
TEST_F(ModuleTest, CloneOrder) {
// Create a program with a function, alias decl and var decl.
Program p = [] {
ProgramBuilder b;
b.Func("F", {}, b.ty.void_(), {});
b.Alias("A", b.ty.u32());
b.GlobalVar("V", b.ty.i32(), ast::StorageClass::kPrivate);
return Program(std::move(b));
}();
// Clone the program, using ReplaceAll() to create new module-scope
// declarations. We want to test that these are added just before the
// declaration that triggered the ReplaceAll().
ProgramBuilder cloned;
CloneContext ctx(&cloned, &p);
ctx.ReplaceAll([&](const ast::Function*) -> const ast::Function* {
ctx.dst->Alias("inserted_before_F", cloned.ty.u32());
return nullptr;
});
ctx.ReplaceAll([&](const ast::Alias*) -> const ast::Alias* {
ctx.dst->Alias("inserted_before_A", cloned.ty.u32());
return nullptr;
});
ctx.ReplaceAll([&](const ast::Variable*) -> const ast::Variable* {
ctx.dst->Alias("inserted_before_V", cloned.ty.u32());
return nullptr;
});
ctx.Clone();
auto& decls = cloned.AST().GlobalDeclarations();
ASSERT_EQ(decls.Length(), 6u);
EXPECT_TRUE(decls[1]->Is<ast::Function>());
EXPECT_TRUE(decls[3]->Is<ast::Alias>());
EXPECT_TRUE(decls[5]->Is<ast::Variable>());
ASSERT_TRUE(decls[0]->Is<ast::Alias>());
ASSERT_TRUE(decls[2]->Is<ast::Alias>());
ASSERT_TRUE(decls[4]->Is<ast::Alias>());
ASSERT_EQ(cloned.Symbols().NameFor(decls[0]->As<ast::Alias>()->name), "inserted_before_F");
ASSERT_EQ(cloned.Symbols().NameFor(decls[2]->As<ast::Alias>()->name), "inserted_before_A");
ASSERT_EQ(cloned.Symbols().NameFor(decls[4]->As<ast::Alias>()->name), "inserted_before_V");
}
} // namespace
} // namespace tint::ast