| // Copyright 2020 The Dawn & Tint Authors |
| // |
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| // list of conditions and the following disclaimer. |
| // |
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| // this list of conditions and the following disclaimer in the documentation |
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| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| |
| #include "src/tint/lang/wgsl/ast/helper_test.h" |
| #include "src/tint/lang/wgsl/reader/parser/helper_test.h" |
| |
| namespace tint::wgsl::reader { |
| namespace { |
| |
| TEST_F(WGSLParserTest, VariableAttributeList_Parses) { |
| auto p = parser(R"(@location(4) @builtin(position))"); |
| auto attrs = p->attribute_list(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| ASSERT_FALSE(attrs.errored); |
| ASSERT_TRUE(attrs.matched); |
| ASSERT_EQ(attrs.value.Length(), 2u); |
| |
| auto* attr_0 = attrs.value[0]->As<ast::Attribute>(); |
| auto* attr_1 = attrs.value[1]->As<ast::Attribute>(); |
| ASSERT_NE(attr_0, nullptr); |
| ASSERT_NE(attr_1, nullptr); |
| |
| ASSERT_TRUE(attr_0->Is<ast::LocationAttribute>()); |
| |
| auto* loc = attr_0->As<ast::LocationAttribute>(); |
| ASSERT_TRUE(loc->expr->Is<ast::IntLiteralExpression>()); |
| auto* exp = loc->expr->As<ast::IntLiteralExpression>(); |
| EXPECT_EQ(exp->value, 4u); |
| |
| ASSERT_TRUE(attr_1->Is<ast::BuiltinAttribute>()); |
| ast::CheckIdentifier(attr_1->As<ast::BuiltinAttribute>()->builtin, "position"); |
| } |
| |
| TEST_F(WGSLParserTest, VariableAttributeList_Invalid) { |
| auto p = parser(R"(@invalid)"); |
| auto attrs = p->attribute_list(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(attrs.errored); |
| EXPECT_FALSE(attrs.matched); |
| EXPECT_TRUE(attrs.value.IsEmpty()); |
| EXPECT_EQ(p->error(), R"(1:2: expected attribute |
| Did you mean 'invariant'? |
| Possible values: 'align', 'binding', 'blend_src', 'builtin', 'color', 'compute', 'diagnostic', 'fragment', 'group', 'id', 'interpolate', 'invariant', 'location', 'must_use', 'size', 'vertex', 'workgroup_size')"); |
| } |
| |
| } // namespace |
| } // namespace tint::wgsl::reader |