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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/reader/wgsl/parser_impl_test_helper.h"
namespace tint {
namespace reader {
namespace wgsl {
namespace {
TEST_F(ParserImplTest, ElseIfStmt) {
auto p = parser("elseif (a == 4) { a = b; c = d; }");
auto e = p->elseif_stmt();
EXPECT_TRUE(e.matched);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_EQ(e.value.size(), 1u);
ASSERT_TRUE(e.value[0]->Is<ast::ElseStatement>());
ASSERT_NE(e.value[0]->condition, nullptr);
ASSERT_TRUE(e.value[0]->condition->Is<ast::BinaryExpression>());
EXPECT_EQ(e.value[0]->body->statements.size(), 2u);
}
TEST_F(ParserImplTest, ElseIfStmt_Multiple) {
auto p = parser("elseif (a == 4) { a = b; c = d; } elseif(c) { d = 2; }");
auto e = p->elseif_stmt();
EXPECT_TRUE(e.matched);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_EQ(e.value.size(), 2u);
ASSERT_TRUE(e.value[0]->Is<ast::ElseStatement>());
ASSERT_NE(e.value[0]->condition, nullptr);
ASSERT_TRUE(e.value[0]->condition->Is<ast::BinaryExpression>());
EXPECT_EQ(e.value[0]->body->statements.size(), 2u);
ASSERT_TRUE(e.value[1]->Is<ast::ElseStatement>());
ASSERT_NE(e.value[1]->condition, nullptr);
ASSERT_TRUE(e.value[1]->condition->Is<ast::IdentifierExpression>());
EXPECT_EQ(e.value[1]->body->statements.size(), 1u);
}
TEST_F(ParserImplTest, ElseIfStmt_InvalidBody) {
auto p = parser("elseif (true) { fn main() {}}");
auto e = p->elseif_stmt();
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:17: expected '}'");
}
TEST_F(ParserImplTest, ElseIfStmt_MissingBody) {
auto p = parser("elseif (true)");
auto e = p->elseif_stmt();
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:14: expected '{'");
}
} // namespace
} // namespace wgsl
} // namespace reader
} // namespace tint