| // 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 "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, GlobalVariableDecl_WithoutInitializer) { |
| auto p = parser("var<private> a : f32"); |
| auto attrs = p->attribute_list(); |
| EXPECT_FALSE(attrs.errored); |
| EXPECT_FALSE(attrs.matched); |
| auto e = p->global_variable_decl(attrs.value); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| auto* var = e.value->As<ast::Var>(); |
| ASSERT_NE(var, nullptr); |
| |
| ast::CheckIdentifier(var->name, "a"); |
| ast::CheckIdentifier(var->type, "f32"); |
| ast::CheckIdentifier(var->declared_address_space, "private"); |
| |
| EXPECT_EQ(var->source.range.begin.line, 1u); |
| EXPECT_EQ(var->source.range.begin.column, 14u); |
| EXPECT_EQ(var->source.range.end.line, 1u); |
| EXPECT_EQ(var->source.range.end.column, 15u); |
| |
| ASSERT_EQ(var->initializer, nullptr); |
| } |
| |
| TEST_F(WGSLParserTest, GlobalVariableDecl_WithInitializer) { |
| auto p = parser("var<private> a : f32 = 1."); |
| auto attrs = p->attribute_list(); |
| EXPECT_FALSE(attrs.errored); |
| EXPECT_FALSE(attrs.matched); |
| auto e = p->global_variable_decl(attrs.value); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| auto* var = e.value->As<ast::Var>(); |
| ASSERT_NE(var, nullptr); |
| |
| ast::CheckIdentifier(var->name, "a"); |
| ast::CheckIdentifier(var->type, "f32"); |
| ast::CheckIdentifier(var->declared_address_space, "private"); |
| |
| EXPECT_EQ(var->source.range.begin.line, 1u); |
| EXPECT_EQ(var->source.range.begin.column, 14u); |
| EXPECT_EQ(var->source.range.end.line, 1u); |
| EXPECT_EQ(var->source.range.end.column, 15u); |
| |
| ASSERT_NE(var->initializer, nullptr); |
| ASSERT_TRUE(var->initializer->Is<ast::FloatLiteralExpression>()); |
| } |
| |
| TEST_F(WGSLParserTest, GlobalVariableDecl_WithAttribute) { |
| auto p = parser("@binding(2) @group(1) var<uniform> a : f32"); |
| auto attrs = p->attribute_list(); |
| EXPECT_FALSE(attrs.errored); |
| EXPECT_TRUE(attrs.matched); |
| auto e = p->global_variable_decl(attrs.value); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| auto* var = e.value->As<ast::Var>(); |
| ASSERT_NE(var, nullptr); |
| |
| ast::CheckIdentifier(var->name, "a"); |
| ast::CheckIdentifier(var->type, "f32"); |
| ast::CheckIdentifier(var->declared_address_space, "uniform"); |
| |
| EXPECT_EQ(var->source.range.begin.line, 1u); |
| EXPECT_EQ(var->source.range.begin.column, 36u); |
| EXPECT_EQ(var->source.range.end.line, 1u); |
| EXPECT_EQ(var->source.range.end.column, 37u); |
| |
| ASSERT_EQ(var->initializer, nullptr); |
| |
| auto& attributes = var->attributes; |
| ASSERT_EQ(attributes.Length(), 2u); |
| ASSERT_TRUE(attributes[0]->Is<ast::BindingAttribute>()); |
| ASSERT_TRUE(attributes[1]->Is<ast::GroupAttribute>()); |
| } |
| |
| TEST_F(WGSLParserTest, GlobalVariableDecl_WithAttribute_MulitpleGroups) { |
| auto p = parser("@binding(2) @group(1) var<uniform> a : f32"); |
| auto attrs = p->attribute_list(); |
| EXPECT_FALSE(attrs.errored); |
| EXPECT_TRUE(attrs.matched); |
| |
| auto e = p->global_variable_decl(attrs.value); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| auto* var = e.value->As<ast::Var>(); |
| ASSERT_NE(var, nullptr); |
| |
| ast::CheckIdentifier(var->name, "a"); |
| ast::CheckIdentifier(var->type, "f32"); |
| ast::CheckIdentifier(var->declared_address_space, "uniform"); |
| |
| EXPECT_EQ(var->source.range.begin.line, 1u); |
| EXPECT_EQ(var->source.range.begin.column, 36u); |
| EXPECT_EQ(var->source.range.end.line, 1u); |
| EXPECT_EQ(var->source.range.end.column, 37u); |
| |
| ASSERT_EQ(var->initializer, nullptr); |
| |
| auto& attributes = var->attributes; |
| ASSERT_EQ(attributes.Length(), 2u); |
| ASSERT_TRUE(attributes[0]->Is<ast::BindingAttribute>()); |
| ASSERT_TRUE(attributes[1]->Is<ast::GroupAttribute>()); |
| } |
| |
| TEST_F(WGSLParserTest, GlobalVariableDecl_InvalidAttribute) { |
| auto p = parser("@binding() var<uniform> a : f32"); |
| auto attrs = p->attribute_list(); |
| EXPECT_TRUE(attrs.errored); |
| EXPECT_FALSE(attrs.matched); |
| |
| auto e = p->global_variable_decl(attrs.value); |
| EXPECT_FALSE(e.errored); |
| EXPECT_TRUE(e.matched); |
| EXPECT_NE(e.value, nullptr); |
| |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:2: binding expects 1 argument"); |
| } |
| |
| TEST_F(WGSLParserTest, GlobalVariableDecl_InvalidConstExpr) { |
| auto p = parser("var<private> a : f32 = if (a) {}"); |
| auto attrs = p->attribute_list(); |
| EXPECT_FALSE(attrs.errored); |
| EXPECT_FALSE(attrs.matched); |
| auto e = p->global_variable_decl(attrs.value); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:24: missing initializer for 'var' declaration"); |
| } |
| |
| } // namespace |
| } // namespace tint::wgsl::reader |