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// Copyright 2024 The Dawn & Tint Authors
//
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// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
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// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
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// contributors may be used to endorse or promote products derived from
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#include "src/tint/lang/glsl/writer/helper_test.h"
#include "gmock/gmock.h"
using namespace tint::core::fluent_types; // NOLINT
using namespace tint::core::number_suffixes; // NOLINT
namespace tint::glsl::writer {
namespace {
TEST_F(GlslWriterTest, Switch) {
auto* f = b.Function("foo", ty.void_(), core::ir::Function::PipelineStage::kCompute);
f->SetWorkgroupSize(1, 1, 1);
b.Append(f->Block(), [&] {
auto* a = b.Var("a", b.Zero<i32>());
auto* s = b.Switch(b.Load(a));
b.Append(b.Case(s, {b.Constant(5_i)}), [&] { b.ExitSwitch(s); });
b.Append(b.DefaultCase(s), [&] { b.ExitSwitch(s); });
b.Return(f);
});
ASSERT_TRUE(Generate()) << err_ << output_.glsl;
EXPECT_EQ(output_.glsl, GlslHeader() + R"(
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void main() {
int a = 0;
switch(a) {
case 5:
{
break;
}
default:
{
break;
}
}
}
)");
}
TEST_F(GlslWriterTest, Switch_MixedDefault) {
auto* f = b.Function("foo", ty.void_(), core::ir::Function::PipelineStage::kCompute);
f->SetWorkgroupSize(1, 1, 1);
b.Append(f->Block(), [&] {
auto* a = b.Var("a", b.Zero<i32>());
auto* s = b.Switch(b.Load(a));
auto* c = b.Case(s, {b.Constant(5_i), nullptr});
b.Append(c, [&] { b.ExitSwitch(s); });
b.Return(f);
});
ASSERT_TRUE(Generate()) << err_ << output_.glsl;
EXPECT_EQ(output_.glsl, GlslHeader() + R"(
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void main() {
int a = 0;
switch(a) {
case 5:
default:
{
break;
}
}
}
)");
}
} // namespace
} // namespace tint::glsl::writer