| // 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, SingularExpression_Array_ConstantIndex) { |
| auto p = parser("a[1]"); |
| auto e = p->singular_expression(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| |
| ASSERT_TRUE(e->Is<ast::IndexAccessorExpression>()); |
| auto* idx = e->As<ast::IndexAccessorExpression>(); |
| |
| ASSERT_TRUE(idx->object->Is<ast::IdentifierExpression>()); |
| auto* ident = idx->object->As<ast::IdentifierExpression>(); |
| EXPECT_EQ(ident->symbol, p->builder().Symbols().Get("a")); |
| |
| ASSERT_TRUE(idx->index->Is<ast::IntLiteralExpression>()); |
| EXPECT_EQ(idx->index->As<ast::IntLiteralExpression>()->value, 1); |
| EXPECT_EQ(idx->index->As<ast::IntLiteralExpression>()->suffix, |
| ast::IntLiteralExpression::Suffix::kNone); |
| } |
| |
| TEST_F(ParserImplTest, SingularExpression_Array_ExpressionIndex) { |
| auto p = parser("a[1 + b / 4]"); |
| auto e = p->singular_expression(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| |
| ASSERT_TRUE(e->Is<ast::IndexAccessorExpression>()); |
| auto* idx = e->As<ast::IndexAccessorExpression>(); |
| |
| ASSERT_TRUE(idx->object->Is<ast::IdentifierExpression>()); |
| auto* ident = idx->object->As<ast::IdentifierExpression>(); |
| EXPECT_EQ(ident->symbol, p->builder().Symbols().Get("a")); |
| |
| ASSERT_TRUE(idx->index->Is<ast::BinaryExpression>()); |
| } |
| |
| TEST_F(ParserImplTest, SingularExpression_Array_MissingIndex) { |
| auto p = parser("a[]"); |
| auto e = p->singular_expression(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:3: unable to parse expression inside []"); |
| } |
| |
| TEST_F(ParserImplTest, SingularExpression_Array_MissingRightBrace) { |
| auto p = parser("a[1"); |
| auto e = p->singular_expression(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:4: expected ']' for index accessor"); |
| } |
| |
| TEST_F(ParserImplTest, SingularExpression_Array_InvalidIndex) { |
| auto p = parser("a[if(a() {})]"); |
| auto e = p->singular_expression(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:3: unable to parse expression inside []"); |
| } |
| |
| TEST_F(ParserImplTest, SingularExpression_Call_Empty) { |
| auto p = parser("a()"); |
| auto e = p->singular_expression(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| |
| ASSERT_TRUE(e->Is<ast::CallExpression>()); |
| auto* c = e->As<ast::CallExpression>(); |
| |
| EXPECT_EQ(c->target.name->symbol, p->builder().Symbols().Get("a")); |
| |
| EXPECT_EQ(c->args.size(), 0u); |
| } |
| |
| TEST_F(ParserImplTest, SingularExpression_Call_WithArgs) { |
| auto p = parser("test(1, b, 2 + 3 / b)"); |
| auto e = p->singular_expression(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| |
| ASSERT_TRUE(e->Is<ast::CallExpression>()); |
| auto* c = e->As<ast::CallExpression>(); |
| |
| EXPECT_EQ(c->target.name->symbol, p->builder().Symbols().Get("test")); |
| |
| EXPECT_EQ(c->args.size(), 3u); |
| EXPECT_TRUE(c->args[0]->Is<ast::IntLiteralExpression>()); |
| EXPECT_TRUE(c->args[1]->Is<ast::IdentifierExpression>()); |
| EXPECT_TRUE(c->args[2]->Is<ast::BinaryExpression>()); |
| } |
| |
| TEST_F(ParserImplTest, SingularExpression_Call_TrailingComma) { |
| auto p = parser("a(b, )"); |
| auto e = p->singular_expression(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_NE(e.value, nullptr); |
| |
| ASSERT_TRUE(e->Is<ast::CallExpression>()); |
| auto* c = e->As<ast::CallExpression>(); |
| EXPECT_EQ(c->args.size(), 1u); |
| } |
| |
| TEST_F(ParserImplTest, SingularExpression_Call_InvalidArg) { |
| auto p = parser("a(if(a) {})"); |
| auto e = p->singular_expression(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:3: expected ')' for function call"); |
| } |
| |
| TEST_F(ParserImplTest, SingularExpression_Call_MissingRightParen) { |
| auto p = parser("a("); |
| auto e = p->singular_expression(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:3: expected ')' for function call"); |
| } |
| |
| TEST_F(ParserImplTest, SingularExpression_MemberAccessor) { |
| auto p = parser("a.b"); |
| auto e = p->singular_expression(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| ASSERT_TRUE(e->Is<ast::MemberAccessorExpression>()); |
| |
| auto* m = e->As<ast::MemberAccessorExpression>(); |
| ASSERT_TRUE(m->structure->Is<ast::IdentifierExpression>()); |
| EXPECT_EQ(m->structure->As<ast::IdentifierExpression>()->symbol, |
| p->builder().Symbols().Get("a")); |
| |
| ASSERT_TRUE(m->member->Is<ast::IdentifierExpression>()); |
| EXPECT_EQ(m->member->As<ast::IdentifierExpression>()->symbol, p->builder().Symbols().Get("b")); |
| } |
| |
| TEST_F(ParserImplTest, SingularExpression_MemberAccesssor_InvalidIdent) { |
| auto p = parser("a.if"); |
| auto e = p->singular_expression(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:3: expected identifier for member accessor"); |
| } |
| |
| TEST_F(ParserImplTest, SingularExpression_MemberAccessor_MissingIdent) { |
| auto p = parser("a."); |
| auto e = p->singular_expression(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:3: expected identifier for member accessor"); |
| } |
| |
| TEST_F(ParserImplTest, SingularExpression_NonMatch_returnLHS) { |
| auto p = parser("a b"); |
| auto e = p->singular_expression(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| ASSERT_TRUE(e->Is<ast::IdentifierExpression>()); |
| } |
| |
| TEST_F(ParserImplTest, SingularExpression_Array_NestedIndexAccessor) { |
| auto p = parser("a[b[c]]"); |
| auto e = p->singular_expression(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| |
| const auto* outer_accessor = e->As<ast::IndexAccessorExpression>(); |
| ASSERT_TRUE(outer_accessor); |
| |
| const auto* outer_object = outer_accessor->object->As<ast::IdentifierExpression>(); |
| ASSERT_TRUE(outer_object); |
| EXPECT_EQ(outer_object->symbol, p->builder().Symbols().Get("a")); |
| |
| const auto* inner_accessor = outer_accessor->index->As<ast::IndexAccessorExpression>(); |
| ASSERT_TRUE(inner_accessor); |
| |
| const auto* inner_object = inner_accessor->object->As<ast::IdentifierExpression>(); |
| ASSERT_TRUE(inner_object); |
| EXPECT_EQ(inner_object->symbol, p->builder().Symbols().Get("b")); |
| |
| const auto* index_expr = inner_accessor->index->As<ast::IdentifierExpression>(); |
| ASSERT_TRUE(index_expr); |
| EXPECT_EQ(index_expr->symbol, p->builder().Symbols().Get("c")); |
| } |
| |
| } // namespace |
| } // namespace tint::reader::wgsl |