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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 "src/tint/lang/msl/writer/ast_printer/helper_test.h"
namespace tint::msl::writer {
namespace {
using MslASTPrinterTest = TestHelper;
TEST_F(MslASTPrinterTest, Emit_If) {
auto* cond = Var("cond", ty.bool_());
auto* i = If(cond, Block(Return()));
WrapInFunction(cond, i);
ASTPrinter& gen = Build();
gen.IncrementIndent();
ASSERT_TRUE(gen.EmitStatement(i)) << gen.Diagnostics();
EXPECT_EQ(gen.Result(), R"( if (cond) {
return;
}
)");
}
TEST_F(MslASTPrinterTest, Emit_IfWithElseIf) {
auto* cond = Var("cond", ty.bool_());
auto* else_cond = Var("else_cond", ty.bool_());
auto* i = If(cond, Block(Return()), Else(If(else_cond, Block(Return()))));
WrapInFunction(cond, else_cond, i);
ASTPrinter& gen = Build();
gen.IncrementIndent();
ASSERT_TRUE(gen.EmitStatement(i)) << gen.Diagnostics();
EXPECT_EQ(gen.Result(), R"( if (cond) {
return;
} else {
if (else_cond) {
return;
}
}
)");
}
TEST_F(MslASTPrinterTest, Emit_IfWithElse) {
auto* cond = Var("cond", ty.bool_());
auto* i = If(cond, Block(Return()), Else(Block(Return())));
WrapInFunction(cond, i);
ASTPrinter& gen = Build();
gen.IncrementIndent();
ASSERT_TRUE(gen.EmitStatement(i)) << gen.Diagnostics();
EXPECT_EQ(gen.Result(), R"( if (cond) {
return;
} else {
return;
}
)");
}
TEST_F(MslASTPrinterTest, Emit_IfWithMultiple) {
auto* cond = Var("cond", ty.bool_());
auto* else_cond = Var("else_cond", ty.bool_());
auto* i =
If(cond, Block(Return()), Else(If(else_cond, Block(Return()), Else(Block(Return())))));
WrapInFunction(cond, else_cond, i);
ASTPrinter& gen = Build();
gen.IncrementIndent();
ASSERT_TRUE(gen.EmitStatement(i)) << gen.Diagnostics();
EXPECT_EQ(gen.Result(), R"( if (cond) {
return;
} else {
if (else_cond) {
return;
} else {
return;
}
}
)");
}
} // namespace
} // namespace tint::msl::writer