| /* |
| * Copyright (C) 2019 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "WHLSLAutoInitializeVariables.h" |
| |
| #if ENABLE(WEBGPU) |
| |
| #include "WHLSLAST.h" |
| #include "WHLSLASTDumper.h" |
| #include "WHLSLNameContext.h" |
| #include "WHLSLResolveOverloadImpl.h" |
| #include "WHLSLResolvingType.h" |
| #include "WHLSLVisitor.h" |
| #include <wtf/StringPrintStream.h> |
| |
| namespace WebCore { |
| |
| namespace WHLSL { |
| |
| class AutoInitialize : public Visitor { |
| using Base = Visitor; |
| public: |
| AutoInitialize(NameContext& nameContext) |
| : m_nameContext(nameContext) |
| , m_castFunctions(*m_nameContext.getFunctions("operator cast"_str)) |
| { } |
| |
| private: |
| void visit(AST::FunctionDeclaration&) |
| { |
| // Skip argument declarations. |
| } |
| |
| void visit(AST::VariableDeclaration& variableDeclaration) |
| { |
| if (variableDeclaration.initializer()) |
| return; |
| |
| AST::UnnamedType* type = variableDeclaration.type(); |
| RELEASE_ASSERT(type); |
| |
| #ifndef NDEBUG |
| StringPrintStream printStream; |
| printStream.print(TypeDumper(*type)); |
| String functionName = printStream.toString(); |
| #else |
| String functionName = "<zero-init>"_s; |
| #endif |
| auto callExpression = makeUniqueRef<AST::CallExpression>(variableDeclaration.origin(), WTFMove(functionName), Vector<UniqueRef<AST::Expression>>()); |
| callExpression->setType(type->clone()); |
| callExpression->setTypeAnnotation(AST::RightValue()); |
| callExpression->setOverloads(m_castFunctions); |
| Vector<std::reference_wrapper<ResolvingType>> argumentTypes; |
| auto* function = resolveFunctionOverload(*callExpression->overloads(), argumentTypes, type); |
| RELEASE_ASSERT(function); |
| callExpression->setFunction(*function); |
| |
| variableDeclaration.setInitializer(WTFMove(callExpression)); |
| } |
| |
| NameContext& m_nameContext; |
| Vector<std::reference_wrapper<AST::FunctionDeclaration>, 1>& m_castFunctions; |
| }; |
| |
| void autoInitializeVariables(Program& program) |
| { |
| AutoInitialize autoInitialize(program.nameContext()); |
| autoInitialize.Visitor::visit(program); |
| } |
| |
| } // namespace WHLSL |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(WEBGPU) |