| // 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/reader/wgsl/parser_impl_test_helper.h" |
| |
| namespace tint::reader::wgsl { |
| namespace { |
| |
| TEST_F(ParserImplTest, ConstExpr_TypeDecl) { |
| auto p = parser("vec2<f32>(1., 2.)"); |
| auto e = p->expect_const_expr(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| ASSERT_FALSE(e.errored); |
| ASSERT_TRUE(e->Is<ast::CallExpression>()); |
| |
| auto* t = e->As<ast::CallExpression>(); |
| ASSERT_TRUE(t->target.type->Is<ast::Vector>()); |
| EXPECT_EQ(t->target.type->As<ast::Vector>()->width, 2u); |
| |
| ASSERT_EQ(t->args.size(), 2u); |
| |
| ASSERT_TRUE(t->args[0]->Is<ast::FloatLiteralExpression>()); |
| EXPECT_DOUBLE_EQ(t->args[0]->As<ast::FloatLiteralExpression>()->value, 1.); |
| EXPECT_EQ(t->args[0]->As<ast::FloatLiteralExpression>()->suffix, |
| ast::FloatLiteralExpression::Suffix::kNone); |
| |
| ASSERT_TRUE(t->args[1]->Is<ast::FloatLiteralExpression>()); |
| EXPECT_DOUBLE_EQ(t->args[1]->As<ast::FloatLiteralExpression>()->value, 2.); |
| EXPECT_EQ(t->args[1]->As<ast::FloatLiteralExpression>()->suffix, |
| ast::FloatLiteralExpression::Suffix::kNone); |
| } |
| |
| TEST_F(ParserImplTest, ConstExpr_TypeDecl_Empty) { |
| auto p = parser("vec2<f32>()"); |
| auto e = p->expect_const_expr(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| ASSERT_FALSE(e.errored); |
| ASSERT_TRUE(e->Is<ast::CallExpression>()); |
| |
| auto* t = e->As<ast::CallExpression>(); |
| ASSERT_TRUE(t->target.type->Is<ast::Vector>()); |
| EXPECT_EQ(t->target.type->As<ast::Vector>()->width, 2u); |
| |
| ASSERT_EQ(t->args.size(), 0u); |
| } |
| |
| TEST_F(ParserImplTest, ConstExpr_TypeDecl_TrailingComma) { |
| auto p = parser("vec2<f32>(1., 2.,)"); |
| auto e = p->expect_const_expr(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| ASSERT_FALSE(e.errored); |
| ASSERT_TRUE(e->Is<ast::CallExpression>()); |
| |
| auto* t = e->As<ast::CallExpression>(); |
| ASSERT_TRUE(t->target.type->Is<ast::Vector>()); |
| EXPECT_EQ(t->target.type->As<ast::Vector>()->width, 2u); |
| |
| ASSERT_EQ(t->args.size(), 2u); |
| ASSERT_TRUE(t->args[0]->Is<ast::LiteralExpression>()); |
| ASSERT_TRUE(t->args[1]->Is<ast::LiteralExpression>()); |
| } |
| |
| TEST_F(ParserImplTest, ConstExpr_TypeDecl_MissingRightParen) { |
| auto p = parser("vec2<f32>(1., 2."); |
| auto e = p->expect_const_expr(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_TRUE(e.errored); |
| ASSERT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:17: expected ')' for type constructor"); |
| } |
| |
| TEST_F(ParserImplTest, ConstExpr_TypeDecl_MissingLeftParen) { |
| auto p = parser("vec2<f32> 1., 2.)"); |
| auto e = p->expect_const_expr(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_TRUE(e.errored); |
| ASSERT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:11: expected '(' for type constructor"); |
| } |
| |
| TEST_F(ParserImplTest, ConstExpr_TypeDecl_MissingComma) { |
| auto p = parser("vec2<f32>(1. 2."); |
| auto e = p->expect_const_expr(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_TRUE(e.errored); |
| ASSERT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:14: expected ')' for type constructor"); |
| } |
| |
| TEST_F(ParserImplTest, ConstExpr_InvalidExpr) { |
| auto p = parser("vec2<f32>(1., if(a) {})"); |
| auto e = p->expect_const_expr(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_TRUE(e.errored); |
| ASSERT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:15: invalid type for const_expr"); |
| } |
| |
| TEST_F(ParserImplTest, ConstExpr_ConstLiteral) { |
| auto p = parser("true"); |
| auto e = p->expect_const_expr(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| ASSERT_FALSE(e.errored); |
| ASSERT_NE(e.value, nullptr); |
| ASSERT_TRUE(e.value->Is<ast::BoolLiteralExpression>()); |
| EXPECT_TRUE(e.value->As<ast::BoolLiteralExpression>()->value); |
| } |
| |
| TEST_F(ParserImplTest, ConstExpr_ConstLiteral_Invalid) { |
| auto p = parser("invalid"); |
| auto e = p->expect_const_expr(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_TRUE(e.errored); |
| ASSERT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:1: unable to parse const_expr"); |
| } |
| |
| TEST_F(ParserImplTest, ConstExpr_TypeConstructor) { |
| auto p = parser("S(0)"); |
| |
| auto e = p->expect_const_expr(); |
| ASSERT_FALSE(e.errored); |
| ASSERT_TRUE(e->Is<ast::CallExpression>()); |
| ASSERT_NE(e->As<ast::CallExpression>()->target.type, nullptr); |
| ASSERT_TRUE(e->As<ast::CallExpression>()->target.type->Is<ast::TypeName>()); |
| EXPECT_EQ(e->As<ast::CallExpression>()->target.type->As<ast::TypeName>()->name, |
| p->builder().Symbols().Get("S")); |
| } |
| |
| TEST_F(ParserImplTest, ConstExpr_Recursion) { |
| std::stringstream out; |
| for (size_t i = 0; i < 200; i++) { |
| out << "f32("; |
| } |
| out << "1.0"; |
| for (size_t i = 0; i < 200; i++) { |
| out << ")"; |
| } |
| auto p = parser(out.str()); |
| auto e = p->expect_const_expr(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_TRUE(e.errored); |
| ASSERT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:517: maximum parser recursive depth reached"); |
| } |
| |
| TEST_F(ParserImplTest, UnaryOp_Recursion) { |
| std::stringstream out; |
| for (size_t i = 0; i < 200; i++) { |
| out << "!"; |
| } |
| out << "1.0"; |
| auto p = parser(out.str()); |
| auto e = p->unary_expression(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_TRUE(e.errored); |
| ASSERT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:130: maximum parser recursive depth reached"); |
| } |
| |
| } // namespace |
| } // namespace tint::reader::wgsl |