| // 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/statement.h" |
| #include "src/ast/variable_decl_statement.h" |
| #include "src/reader/wgsl/parser_impl.h" |
| #include "src/reader/wgsl/parser_impl_test_helper.h" |
| |
| namespace tint { |
| namespace reader { |
| namespace wgsl { |
| namespace { |
| |
| TEST_F(ParserImplTest, VariableStmt_VariableDecl) { |
| auto* p = parser("var a : i32;"); |
| auto e = p->variable_stmt(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e, nullptr); |
| ASSERT_TRUE(e->IsVariableDecl()); |
| ASSERT_NE(e->variable(), nullptr); |
| EXPECT_EQ(e->variable()->name(), "a"); |
| |
| EXPECT_EQ(e->variable()->constructor(), nullptr); |
| } |
| |
| TEST_F(ParserImplTest, VariableStmt_VariableDecl_WithInit) { |
| auto* p = parser("var a : i32 = 1;"); |
| auto e = p->variable_stmt(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e, nullptr); |
| ASSERT_TRUE(e->IsVariableDecl()); |
| ASSERT_NE(e->variable(), nullptr); |
| EXPECT_EQ(e->variable()->name(), "a"); |
| |
| ASSERT_NE(e->variable()->constructor(), nullptr); |
| EXPECT_TRUE(e->variable()->constructor()->IsConstructor()); |
| } |
| |
| TEST_F(ParserImplTest, VariableStmt_VariableDecl_Invalid) { |
| auto* p = parser("var a : invalid;"); |
| auto e = p->variable_stmt(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_EQ(e, nullptr); |
| EXPECT_EQ(p->error(), "1:9: unknown type alias 'invalid'"); |
| } |
| |
| TEST_F(ParserImplTest, VariableStmt_VariableDecl_ConstructorInvalid) { |
| auto* p = parser("var a : i32 = if(a) {}"); |
| auto e = p->variable_stmt(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_EQ(e, nullptr); |
| EXPECT_EQ(p->error(), "1:15: missing constructor for variable declaration"); |
| } |
| |
| TEST_F(ParserImplTest, VariableStmt_Const) { |
| auto* p = parser("const a : i32 = 1"); |
| auto e = p->variable_stmt(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e, nullptr); |
| ASSERT_TRUE(e->IsVariableDecl()); |
| } |
| |
| TEST_F(ParserImplTest, VariableStmt_Const_InvalidVarIdent) { |
| auto* p = parser("const a : invalid = 1"); |
| auto e = p->variable_stmt(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_EQ(e, nullptr); |
| EXPECT_EQ(p->error(), "1:11: unknown type alias 'invalid'"); |
| } |
| |
| TEST_F(ParserImplTest, VariableStmt_Const_MissingEqual) { |
| auto* p = parser("const a : i32 1"); |
| auto e = p->variable_stmt(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_EQ(e, nullptr); |
| EXPECT_EQ(p->error(), "1:15: missing = for constant declaration"); |
| } |
| |
| TEST_F(ParserImplTest, VariableStmt_Const_MissingConstructor) { |
| auto* p = parser("const a : i32 ="); |
| auto e = p->variable_stmt(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_EQ(e, nullptr); |
| EXPECT_EQ(p->error(), "1:16: missing constructor for const declaration"); |
| } |
| |
| TEST_F(ParserImplTest, VariableStmt_Const_InvalidConstructor) { |
| auto* p = parser("const a : i32 = if (a) {}"); |
| auto e = p->variable_stmt(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_EQ(e, nullptr); |
| EXPECT_EQ(p->error(), "1:17: missing constructor for const declaration"); |
| } |
| |
| } // namespace |
| } // namespace wgsl |
| } // namespace reader |
| } // namespace tint |