blob: 38223fbb9e9e1a212fc38bf0022d63f5f6966a41 [file] [log] [blame]
// 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.h"
#include "src/ast/bool_literal.h"
#include "src/ast/const_initializer_expression.h"
#include "src/ast/identifier_expression.h"
#include "src/ast/relational_expression.h"
#include "src/reader/wgsl/parser_impl.h"
namespace tint {
namespace reader {
namespace wgsl {
using ParserImplTest = testing::Test;
TEST_F(ParserImplTest, InclusiveOrExpression_Parses) {
ParserImpl p{"a | true"};
auto e = p.inclusive_or_expression();
ASSERT_FALSE(p.has_error()) << p.error();
ASSERT_NE(e, nullptr);
ASSERT_TRUE(e->IsRelational());
auto rel = e->AsRelational();
EXPECT_EQ(ast::Relation::kOr, rel->relation());
ASSERT_TRUE(rel->lhs()->IsIdentifier());
auto ident = rel->lhs()->AsIdentifier();
ASSERT_EQ(ident->name().size(), 1);
EXPECT_EQ(ident->name()[0], "a");
ASSERT_TRUE(rel->rhs()->IsInitializer());
ASSERT_TRUE(rel->rhs()->AsInitializer()->IsConstInitializer());
auto init = rel->rhs()->AsInitializer()->AsConstInitializer();
ASSERT_TRUE(init->literal()->IsBool());
ASSERT_TRUE(init->literal()->AsBool()->IsTrue());
}
TEST_F(ParserImplTest, InclusiveOrExpression_InvalidLHS) {
ParserImpl p{"if (a) {} | true"};
auto e = p.inclusive_or_expression();
ASSERT_FALSE(p.has_error()) << p.error();
ASSERT_EQ(e, nullptr);
}
TEST_F(ParserImplTest, InclusiveOrExpression_InvalidRHS) {
ParserImpl p{"true | if (a) {}"};
auto e = p.inclusive_or_expression();
ASSERT_TRUE(p.has_error());
ASSERT_EQ(e, nullptr);
EXPECT_EQ(p.error(), "1:8: unable to parse right side of | expression");
}
TEST_F(ParserImplTest, InclusiveOrExpression_NoOr_ReturnsLHS) {
ParserImpl p{"a true"};
auto e = p.inclusive_or_expression();
ASSERT_FALSE(p.has_error()) << p.error();
ASSERT_NE(e, nullptr);
ASSERT_TRUE(e->IsIdentifier());
}
} // namespace wgsl
} // namespace reader
} // namespace tint