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/ast/call_statement.h"
16 #include "src/reader/wgsl/parser_impl_test_helper.h"
17
18 namespace tint {
19 namespace reader {
20 namespace wgsl {
21 namespace {
22
TEST_F(ParserImplTest,Statement_Call)23 TEST_F(ParserImplTest, Statement_Call) {
24 auto p = parser("a();");
25 auto e = p->statement();
26 ASSERT_FALSE(p->has_error()) << p->error();
27 ASSERT_NE(e.value, nullptr);
28 EXPECT_TRUE(e.matched);
29 EXPECT_FALSE(e.errored);
30
31 EXPECT_EQ(e->source.range.begin.line, 1u);
32 EXPECT_EQ(e->source.range.begin.column, 1u);
33 EXPECT_EQ(e->source.range.end.line, 1u);
34 EXPECT_EQ(e->source.range.end.column, 2u);
35
36 ASSERT_TRUE(e->Is<ast::CallStatement>());
37 auto* c = e->As<ast::CallStatement>()->expr;
38
39 EXPECT_EQ(c->target.name->symbol, p->builder().Symbols().Get("a"));
40
41 EXPECT_EQ(c->args.size(), 0u);
42 }
43
TEST_F(ParserImplTest,Statement_Call_WithParams)44 TEST_F(ParserImplTest, Statement_Call_WithParams) {
45 auto p = parser("a(1, b, 2 + 3 / b);");
46 auto e = p->statement();
47 ASSERT_FALSE(p->has_error()) << p->error();
48 ASSERT_NE(e.value, nullptr);
49 EXPECT_TRUE(e.matched);
50 EXPECT_FALSE(e.errored);
51
52 ASSERT_TRUE(e->Is<ast::CallStatement>());
53 auto* c = e->As<ast::CallStatement>()->expr;
54
55 EXPECT_EQ(c->target.name->symbol, p->builder().Symbols().Get("a"));
56
57 EXPECT_EQ(c->args.size(), 3u);
58 EXPECT_TRUE(c->args[0]->Is<ast::IntLiteralExpression>());
59 EXPECT_TRUE(c->args[1]->Is<ast::IdentifierExpression>());
60 EXPECT_TRUE(c->args[2]->Is<ast::BinaryExpression>());
61 }
62
TEST_F(ParserImplTest,Statement_Call_WithParams_TrailingComma)63 TEST_F(ParserImplTest, Statement_Call_WithParams_TrailingComma) {
64 auto p = parser("a(1, b,);");
65 auto e = p->statement();
66 ASSERT_FALSE(p->has_error()) << p->error();
67 ASSERT_NE(e.value, nullptr);
68 EXPECT_TRUE(e.matched);
69 EXPECT_FALSE(e.errored);
70
71 ASSERT_TRUE(e->Is<ast::CallStatement>());
72 auto* c = e->As<ast::CallStatement>()->expr;
73
74 EXPECT_EQ(c->target.name->symbol, p->builder().Symbols().Get("a"));
75
76 EXPECT_EQ(c->args.size(), 2u);
77 EXPECT_TRUE(c->args[0]->Is<ast::IntLiteralExpression>());
78 EXPECT_TRUE(c->args[1]->Is<ast::IdentifierExpression>());
79 }
80
TEST_F(ParserImplTest,Statement_Call_Missing_RightParen)81 TEST_F(ParserImplTest, Statement_Call_Missing_RightParen) {
82 auto p = parser("a(");
83 auto e = p->statement();
84 EXPECT_TRUE(p->has_error());
85 EXPECT_TRUE(e.errored);
86 EXPECT_FALSE(e.matched);
87 EXPECT_EQ(p->error(), "1:3: expected ')' for function call");
88 }
89
TEST_F(ParserImplTest,Statement_Call_Missing_Semi)90 TEST_F(ParserImplTest, Statement_Call_Missing_Semi) {
91 auto p = parser("a()");
92 auto e = p->statement();
93 EXPECT_TRUE(p->has_error());
94 EXPECT_TRUE(e.errored);
95 EXPECT_FALSE(e.matched);
96 EXPECT_EQ(p->error(), "1:4: expected ';' for function call");
97 }
98
TEST_F(ParserImplTest,Statement_Call_Bad_ArgList)99 TEST_F(ParserImplTest, Statement_Call_Bad_ArgList) {
100 auto p = parser("a(b c);");
101 auto e = p->statement();
102 EXPECT_TRUE(p->has_error());
103 EXPECT_TRUE(e.errored);
104 EXPECT_FALSE(e.matched);
105 EXPECT_EQ(p->error(), "1:5: expected ')' for function call");
106 }
107
108 } // namespace
109 } // namespace wgsl
110 } // namespace reader
111 } // namespace tint
112