189 lines
6.2 KiB
C++
189 lines
6.2 KiB
C++
// Copyright 2020 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "src/tint/reader/wgsl/parser_impl_test_helper.h"
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namespace tint::reader::wgsl {
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namespace {
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TEST_F(ParserImplTest, GlobalDecl_Semicolon) {
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auto p = parser(";");
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p->global_decl();
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ASSERT_FALSE(p->has_error()) << p->error();
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}
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TEST_F(ParserImplTest, GlobalDecl_GlobalVariable) {
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auto p = parser("var<private> a : vec2<i32> = vec2<i32>(1, 2);");
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p->global_decl();
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ASSERT_FALSE(p->has_error()) << p->error();
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auto program = p->program();
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ASSERT_EQ(program.AST().GlobalVariables().size(), 1u);
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auto* v = program.AST().GlobalVariables()[0];
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EXPECT_EQ(v->symbol, program.Symbols().Get("a"));
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}
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TEST_F(ParserImplTest, GlobalDecl_GlobalVariable_Inferred_Invalid) {
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auto p = parser("var<private> a = vec2<i32>(1, 2);");
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p->global_decl();
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ASSERT_TRUE(p->has_error());
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EXPECT_EQ(p->error(), "1:16: expected ':' for variable declaration");
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}
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TEST_F(ParserImplTest, GlobalDecl_GlobalVariable_MissingSemicolon) {
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auto p = parser("var<private> a : vec2<i32>");
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p->global_decl();
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ASSERT_TRUE(p->has_error());
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EXPECT_EQ(p->error(), "1:27: expected ';' for variable declaration");
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}
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TEST_F(ParserImplTest, GlobalDecl_GlobalConstant) {
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auto p = parser("let a : i32 = 2;");
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p->global_decl();
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ASSERT_FALSE(p->has_error()) << p->error();
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auto program = p->program();
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ASSERT_EQ(program.AST().GlobalVariables().size(), 1u);
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auto* v = program.AST().GlobalVariables()[0];
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EXPECT_EQ(v->symbol, program.Symbols().Get("a"));
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}
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TEST_F(ParserImplTest, GlobalDecl_GlobalConstant_MissingInitializer) {
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auto p = parser("let a : vec2<i32>;");
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p->global_decl();
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ASSERT_TRUE(p->has_error());
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EXPECT_EQ(p->error(), "1:18: expected '=' for 'let' declaration");
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}
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TEST_F(ParserImplTest, GlobalDecl_GlobalConstant_Invalid) {
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auto p = parser("let a : vec2<i32> 1.0;");
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p->global_decl();
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ASSERT_TRUE(p->has_error());
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EXPECT_EQ(p->error(), "1:19: expected '=' for 'let' declaration");
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}
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TEST_F(ParserImplTest, GlobalDecl_GlobalConstant_MissingSemicolon) {
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auto p = parser("let a : vec2<i32> = vec2<i32>(1, 2)");
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p->global_decl();
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ASSERT_TRUE(p->has_error());
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EXPECT_EQ(p->error(), "1:36: expected ';' for 'let' declaration");
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}
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TEST_F(ParserImplTest, GlobalDecl_TypeAlias) {
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auto p = parser("type A = i32;");
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p->global_decl();
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ASSERT_FALSE(p->has_error()) << p->error();
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auto program = p->program();
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ASSERT_EQ(program.AST().TypeDecls().size(), 1u);
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ASSERT_TRUE(program.AST().TypeDecls()[0]->Is<ast::Alias>());
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EXPECT_EQ(program.Symbols().NameFor(program.AST().TypeDecls()[0]->As<ast::Alias>()->name), "A");
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}
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TEST_F(ParserImplTest, GlobalDecl_TypeAlias_StructIdent) {
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auto p = parser(R"(struct A {
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a : f32,
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}
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type B = A;)");
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p->global_decl();
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p->global_decl();
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ASSERT_FALSE(p->has_error()) << p->error();
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auto program = p->program();
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ASSERT_EQ(program.AST().TypeDecls().size(), 2u);
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ASSERT_TRUE(program.AST().TypeDecls()[0]->Is<ast::Struct>());
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auto* str = program.AST().TypeDecls()[0]->As<ast::Struct>();
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EXPECT_EQ(str->name, program.Symbols().Get("A"));
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ASSERT_TRUE(program.AST().TypeDecls()[1]->Is<ast::Alias>());
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auto* alias = program.AST().TypeDecls()[1]->As<ast::Alias>();
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EXPECT_EQ(alias->name, program.Symbols().Get("B"));
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auto* tn = alias->type->As<ast::TypeName>();
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EXPECT_NE(tn, nullptr);
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EXPECT_EQ(tn->name, str->name);
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}
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TEST_F(ParserImplTest, GlobalDecl_TypeAlias_MissingSemicolon) {
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auto p = parser("type A = i32");
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p->global_decl();
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ASSERT_TRUE(p->has_error());
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EXPECT_EQ(p->error(), "1:13: expected ';' for type alias");
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}
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TEST_F(ParserImplTest, GlobalDecl_Function) {
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auto p = parser("fn main() { return; }");
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p->global_decl();
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ASSERT_FALSE(p->has_error()) << p->error();
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auto program = p->program();
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ASSERT_EQ(program.AST().Functions().size(), 1u);
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EXPECT_EQ(program.Symbols().NameFor(program.AST().Functions()[0]->symbol), "main");
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}
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TEST_F(ParserImplTest, GlobalDecl_Function_WithAttribute) {
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auto p = parser("@workgroup_size(2) fn main() { return; }");
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p->global_decl();
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ASSERT_FALSE(p->has_error()) << p->error();
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auto program = p->program();
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ASSERT_EQ(program.AST().Functions().size(), 1u);
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EXPECT_EQ(program.Symbols().NameFor(program.AST().Functions()[0]->symbol), "main");
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}
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TEST_F(ParserImplTest, GlobalDecl_Function_Invalid) {
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auto p = parser("fn main() -> { return; }");
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p->global_decl();
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ASSERT_TRUE(p->has_error());
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EXPECT_EQ(p->error(), "1:14: unable to determine function return type");
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}
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TEST_F(ParserImplTest, GlobalDecl_ParsesStruct) {
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auto p = parser("struct A { b: i32, c: f32}");
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p->global_decl();
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ASSERT_FALSE(p->has_error()) << p->error();
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auto program = p->program();
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ASSERT_EQ(program.AST().TypeDecls().size(), 1u);
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auto* t = program.AST().TypeDecls()[0];
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ASSERT_NE(t, nullptr);
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ASSERT_TRUE(t->Is<ast::Struct>());
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auto* str = t->As<ast::Struct>();
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EXPECT_EQ(str->name, program.Symbols().Get("A"));
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EXPECT_EQ(str->members.size(), 2u);
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}
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TEST_F(ParserImplTest, GlobalDecl_Struct_Invalid) {
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{
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auto p = parser("A {}");
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auto decl = p->global_decl();
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// global_decl will result in a no match.
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ASSERT_FALSE(p->has_error()) << p->error();
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ASSERT_TRUE(!decl.matched && !decl.errored);
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}
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{
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auto p = parser("A {}");
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p->translation_unit();
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// translation_unit will result in a general error.
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ASSERT_TRUE(p->has_error());
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EXPECT_EQ(p->error(), "1:1: unexpected token");
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}
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}
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} // namespace
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} // namespace tint::reader::wgsl
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