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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/ast/loop_statement.h"
#include "gtest/gtest-spi.h"
#include "src/ast/discard_statement.h"
#include "src/ast/if_statement.h"
#include "src/ast/test_helper.h"
namespace tint {
namespace ast {
namespace {
using LoopStatementTest = TestHelper;
TEST_F(LoopStatementTest, Creation) {
auto* body = Block(create<DiscardStatement>());
auto* b = body->last();
auto* continuing = Block(create<DiscardStatement>());
auto* l = create<LoopStatement>(body, continuing);
ASSERT_EQ(l->body()->size(), 1u);
EXPECT_EQ(l->body()->get(0), b);
ASSERT_EQ(l->continuing()->size(), 1u);
EXPECT_EQ(l->continuing()->get(0), continuing->last());
}
TEST_F(LoopStatementTest, Creation_WithSource) {
auto* body = Block(create<DiscardStatement>());
auto* continuing = Block(create<DiscardStatement>());
auto* l =
create<LoopStatement>(Source{Source::Location{20, 2}}, body, continuing);
auto src = l->source();
EXPECT_EQ(src.range.begin.line, 20u);
EXPECT_EQ(src.range.begin.column, 2u);
}
TEST_F(LoopStatementTest, IsLoop) {
auto* l = create<LoopStatement>(Block(), Block());
EXPECT_TRUE(l->Is<LoopStatement>());
}
TEST_F(LoopStatementTest, HasContinuing_WithoutContinuing) {
auto* body = Block(create<DiscardStatement>());
auto* l = create<LoopStatement>(body, nullptr);
EXPECT_FALSE(l->has_continuing());
}
TEST_F(LoopStatementTest, HasContinuing_WithContinuing) {
auto* body = Block(create<DiscardStatement>());
auto* continuing = Block(create<DiscardStatement>());
auto* l = create<LoopStatement>(body, continuing);
EXPECT_TRUE(l->has_continuing());
}
TEST_F(LoopStatementTest, Assert_Null_Body) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.create<LoopStatement>(nullptr, nullptr);
},
"internal compiler error");
}
TEST_F(LoopStatementTest, Assert_DifferentProgramID_Body) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.create<LoopStatement>(b2.Block(), b1.Block());
},
"internal compiler error");
}
TEST_F(LoopStatementTest, Assert_DifferentProgramID_Continuing) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.create<LoopStatement>(b1.Block(), b2.Block());
},
"internal compiler error");
}
TEST_F(LoopStatementTest, ToStr) {
auto* body = Block(create<DiscardStatement>());
auto* l = create<LoopStatement>(body, nullptr);
EXPECT_EQ(str(l), R"(Loop{
Discard{}
}
)");
}
TEST_F(LoopStatementTest, ToStr_WithContinuing) {
auto* body = Block(create<DiscardStatement>());
auto* continuing = Block(create<DiscardStatement>());
auto* l = create<LoopStatement>(body, continuing);
EXPECT_EQ(str(l), R"(Loop{
Discard{}
continuing {
Discard{}
}
}
)");
}
} // namespace
} // namespace ast
} // namespace tint