1 // Copyright 2020 The Tint Authors.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include "src/reader/wgsl/parser_impl_test_helper.h"
16
17 namespace tint {
18 namespace reader {
19 namespace wgsl {
20 namespace {
21
TEST_F(ParserImplTest,ElseStmt)22 TEST_F(ParserImplTest, ElseStmt) {
23 auto p = parser("else { a = b; c = d; }");
24 auto e = p->else_stmt();
25 EXPECT_TRUE(e.matched);
26 EXPECT_FALSE(e.errored);
27 EXPECT_FALSE(p->has_error()) << p->error();
28 ASSERT_NE(e.value, nullptr);
29 ASSERT_TRUE(e->Is<ast::ElseStatement>());
30 ASSERT_EQ(e->condition, nullptr);
31 EXPECT_EQ(e->body->statements.size(), 2u);
32 }
33
TEST_F(ParserImplTest,ElseStmt_InvalidBody)34 TEST_F(ParserImplTest, ElseStmt_InvalidBody) {
35 auto p = parser("else { fn main() {}}");
36 auto e = p->else_stmt();
37 EXPECT_FALSE(e.matched);
38 EXPECT_TRUE(e.errored);
39 EXPECT_EQ(e.value, nullptr);
40 EXPECT_TRUE(p->has_error());
41 EXPECT_EQ(p->error(), "1:8: expected '}'");
42 }
43
TEST_F(ParserImplTest,ElseStmt_MissingBody)44 TEST_F(ParserImplTest, ElseStmt_MissingBody) {
45 auto p = parser("else");
46 auto e = p->else_stmt();
47 EXPECT_FALSE(e.matched);
48 EXPECT_TRUE(e.errored);
49 EXPECT_EQ(e.value, nullptr);
50 EXPECT_TRUE(p->has_error());
51 EXPECT_EQ(p->error(), "1:5: expected '{'");
52 }
53
54 } // namespace
55 } // namespace wgsl
56 } // namespace reader
57 } // namespace tint
58