| // Copyright 2020 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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| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "src/tint/lang/wgsl/reader/parser/helper_test.h" |
| |
| namespace tint::wgsl::reader { |
| namespace { |
| |
| TEST_F(WGSLParserTest, ArgumentExpressionList_Parses) { |
| auto p = parser("(a)"); |
| auto e = p->expect_argument_expression_list("argument list"); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| ASSERT_FALSE(e.errored); |
| |
| ASSERT_EQ(e.value.Length(), 1u); |
| ASSERT_TRUE(e.value[0]->Is<ast::IdentifierExpression>()); |
| } |
| |
| TEST_F(WGSLParserTest, ArgumentExpressionList_ParsesEmptyList) { |
| auto p = parser("()"); |
| auto e = p->expect_argument_expression_list("argument list"); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| ASSERT_FALSE(e.errored); |
| |
| ASSERT_EQ(e.value.Length(), 0u); |
| } |
| |
| TEST_F(WGSLParserTest, ArgumentExpressionList_ParsesMultiple) { |
| auto p = parser("(a, 33, 1+2)"); |
| auto e = p->expect_argument_expression_list("argument list"); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| ASSERT_FALSE(e.errored); |
| |
| ASSERT_EQ(e.value.Length(), 3u); |
| ASSERT_TRUE(e.value[0]->Is<ast::IdentifierExpression>()); |
| ASSERT_TRUE(e.value[1]->Is<ast::LiteralExpression>()); |
| ASSERT_TRUE(e.value[2]->Is<ast::BinaryExpression>()); |
| } |
| |
| TEST_F(WGSLParserTest, ArgumentExpressionList_TrailingComma) { |
| auto p = parser("(a, 42,)"); |
| auto e = p->expect_argument_expression_list("argument list"); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| ASSERT_FALSE(e.errored); |
| |
| ASSERT_EQ(e.value.Length(), 2u); |
| ASSERT_TRUE(e.value[0]->Is<ast::IdentifierExpression>()); |
| ASSERT_TRUE(e.value[1]->Is<ast::LiteralExpression>()); |
| } |
| |
| TEST_F(WGSLParserTest, ArgumentExpressionList_HandlesMissingLeftParen) { |
| auto p = parser("a)"); |
| auto e = p->expect_argument_expression_list("argument list"); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_TRUE(e.errored); |
| EXPECT_EQ(p->error(), "1:1: expected '(' for argument list"); |
| } |
| |
| TEST_F(WGSLParserTest, ArgumentExpressionList_HandlesMissingRightParen) { |
| auto p = parser("(a"); |
| auto e = p->expect_argument_expression_list("argument list"); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_TRUE(e.errored); |
| EXPECT_EQ(p->error(), "1:3: expected ',' for argument list"); |
| } |
| |
| TEST_F(WGSLParserTest, ArgumentExpressionList_HandlesMissingExpression_0) { |
| auto p = parser("(,)"); |
| auto e = p->expect_argument_expression_list("argument list"); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_TRUE(e.errored); |
| EXPECT_EQ(p->error(), "1:2: expected expression for argument list"); |
| } |
| |
| TEST_F(WGSLParserTest, ArgumentExpressionList_HandlesMissingExpression_1) { |
| auto p = parser("(a, ,)"); |
| auto e = p->expect_argument_expression_list("argument list"); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_TRUE(e.errored); |
| EXPECT_EQ(p->error(), "1:5: expected expression for argument list"); |
| } |
| |
| TEST_F(WGSLParserTest, ArgumentExpressionList_HandlesInvalidExpression) { |
| auto p = parser("(if(a) {})"); |
| auto e = p->expect_argument_expression_list("argument list"); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_TRUE(e.errored); |
| EXPECT_EQ(p->error(), "1:2: expected expression for argument list"); |
| } |
| |
| } // namespace |
| } // namespace tint::wgsl::reader |