| // Copyright 2022 The Dawn & Tint Authors |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // 1. Redistributions of source code must retain the above copyright notice, this |
| // list of conditions and the following disclaimer. |
| // |
| // 2. Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // |
| // 3. Neither the name of the copyright holder nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
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| |
| #include "src/tint/lang/wgsl/reader/parser/helper_test.h" |
| |
| namespace tint::wgsl::reader { |
| namespace { |
| |
| TEST_F(WGSLParserTest, CoreLHS_NoMatch) { |
| auto p = parser("123"); |
| auto e = p->core_lhs_expression(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| ASSERT_FALSE(e.errored); |
| EXPECT_FALSE(e.matched); |
| } |
| |
| TEST_F(WGSLParserTest, CoreLHS_Ident) { |
| auto p = parser("identifier"); |
| auto e = p->core_lhs_expression(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| ASSERT_FALSE(e.errored); |
| EXPECT_TRUE(e.matched); |
| ASSERT_NE(e.value, nullptr); |
| ASSERT_TRUE(e->Is<ast::IdentifierExpression>()); |
| |
| auto* ident_expr = e->As<ast::IdentifierExpression>(); |
| EXPECT_EQ(ident_expr->identifier->symbol, p->builder().Symbols().Get("identifier")); |
| } |
| |
| TEST_F(WGSLParserTest, CoreLHS_ParenStmt) { |
| auto p = parser("(a)"); |
| auto e = p->core_lhs_expression(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| ASSERT_FALSE(e.errored); |
| EXPECT_TRUE(e.matched); |
| ASSERT_NE(e.value, nullptr); |
| ASSERT_TRUE(e->Is<ast::IdentifierExpression>()); |
| |
| auto* ident_expr = e->As<ast::IdentifierExpression>(); |
| EXPECT_EQ(ident_expr->identifier->symbol, p->builder().Symbols().Get("a")); |
| } |
| |
| TEST_F(WGSLParserTest, CoreLHS_MissingRightParen) { |
| auto p = parser("(a"); |
| auto e = p->core_lhs_expression(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| ASSERT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:3: expected ')'"); |
| } |
| |
| TEST_F(WGSLParserTest, CoreLHS_InvalidLHSExpression) { |
| auto p = parser("(if (a() {})"); |
| auto e = p->core_lhs_expression(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| ASSERT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:1: invalid expression"); |
| } |
| |
| TEST_F(WGSLParserTest, CoreLHS_MissingLHSExpression) { |
| auto p = parser("()"); |
| auto e = p->core_lhs_expression(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| ASSERT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:1: invalid expression"); |
| } |
| |
| TEST_F(WGSLParserTest, CoreLHS_Invalid) { |
| auto p = parser("1234"); |
| auto e = p->core_lhs_expression(); |
| ASSERT_FALSE(p->has_error()); |
| ASSERT_FALSE(e.errored); |
| EXPECT_FALSE(e.matched); |
| } |
| |
| } // namespace |
| } // namespace tint::wgsl::reader |