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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/lang/wgsl/program/program_builder.h"
#include "gtest/gtest.h"
namespace tint {
namespace {
using ProgramBuilderTest = testing::Test;
TEST_F(ProgramBuilderTest, IDsAreUnique) {
Program program_a(ProgramBuilder{});
Program program_b(ProgramBuilder{});
Program program_c(ProgramBuilder{});
EXPECT_NE(program_a.ID(), program_b.ID());
EXPECT_NE(program_b.ID(), program_c.ID());
EXPECT_NE(program_c.ID(), program_a.ID());
}
TEST_F(ProgramBuilderTest, WrapDoesntAffectInner) {
Program inner([] {
ProgramBuilder builder;
auto ty = builder.ty.f32();
builder.Func("a", {}, ty, {}, {});
return builder;
}());
ASSERT_EQ(inner.AST().Functions().Length(), 1u);
ASSERT_TRUE(inner.Symbols().Get("a").IsValid());
ASSERT_FALSE(inner.Symbols().Get("b").IsValid());
ProgramBuilder outer = ProgramBuilder::Wrap(inner);
ASSERT_EQ(inner.AST().Functions().Length(), 1u);
ASSERT_EQ(outer.AST().Functions().Length(), 1u);
EXPECT_EQ(inner.AST().Functions()[0], outer.AST().Functions()[0]);
EXPECT_TRUE(inner.Symbols().Get("a").IsValid());
EXPECT_EQ(inner.Symbols().Get("a"), outer.Symbols().Get("a"));
EXPECT_TRUE(inner.Symbols().Get("a").IsValid());
EXPECT_TRUE(outer.Symbols().Get("a").IsValid());
EXPECT_FALSE(inner.Symbols().Get("b").IsValid());
EXPECT_FALSE(outer.Symbols().Get("b").IsValid());
auto ty = outer.ty.f32();
outer.Func("b", {}, ty, {}, {});
ASSERT_EQ(inner.AST().Functions().Length(), 1u);
ASSERT_EQ(outer.AST().Functions().Length(), 2u);
EXPECT_EQ(inner.AST().Functions()[0], outer.AST().Functions()[0]);
EXPECT_EQ(outer.AST().Functions()[1]->name->symbol, outer.Symbols().Get("b"));
EXPECT_EQ(inner.Symbols().Get("a"), outer.Symbols().Get("a"));
EXPECT_TRUE(inner.Symbols().Get("a").IsValid());
EXPECT_TRUE(outer.Symbols().Get("a").IsValid());
EXPECT_FALSE(inner.Symbols().Get("b").IsValid());
EXPECT_TRUE(outer.Symbols().Get("b").IsValid());
}
} // namespace
} // namespace tint