| /* |
| * 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 "WHLSLStandardLibraryUtilities.h" |
| |
| #if ENABLE(WEBGPU) |
| |
| #include "WHLSLCallExpression.h" |
| #include "WHLSLParser.h" |
| #include "WHLSLProgram.h" |
| #include "WHLSLStandardLibrary.h" |
| #include "WHLSLStandardLibraryFunctionMap.h" |
| #include "WHLSLVisitor.h" |
| #include <wtf/DataLog.h> |
| #include <wtf/HashSet.h> |
| #include <wtf/NeverDestroyed.h> |
| #include <pal/Gunzip.h> |
| |
| namespace WebCore { |
| |
| namespace WHLSL { |
| |
| constexpr bool verbose = false; |
| |
| static String decompressAndDecodeStandardLibrary() |
| { |
| auto decompressedStandardLibrary = gunzip(WHLSLStandardLibrary, sizeof(WHLSLStandardLibrary)); |
| return String::fromUTF8(decompressedStandardLibrary.data(), decompressedStandardLibrary.size()); |
| } |
| |
| class NameFinder : public Visitor { |
| public: |
| HashSet<String> takeFunctionNames() |
| { |
| HashSet<String> result; |
| std::swap(result, m_functionNames); |
| return result; |
| } |
| |
| private: |
| void visit(AST::CallExpression& callExpression) override |
| { |
| m_functionNames.add(callExpression.name()); |
| Visitor::visit(callExpression); |
| } |
| |
| HashSet<String> m_functionNames; |
| }; |
| |
| Expected<void, Error> includeStandardLibrary(Program& program, Parser& parser, bool parseFullStandardLibrary) |
| { |
| static NeverDestroyed<String> standardLibrary(decompressAndDecodeStandardLibrary()); |
| if (parseFullStandardLibrary) { |
| auto parseResult = parser.parse(program, standardLibrary.get(), ParsingMode::StandardLibrary, AST::NameSpace::StandardLibrary); |
| if (!parseResult) |
| return makeUnexpected(parseResult.error()); |
| return { }; |
| } |
| |
| static NeverDestroyed<HashMap<String, SubstringLocation>> standardLibraryFunctionMap(computeStandardLibraryFunctionMap()); |
| |
| auto stringView = StringView(standardLibrary.get()).substring(0, firstFunctionOffsetInStandardLibrary()); |
| auto parseResult = parser.parse(program, stringView, ParsingMode::StandardLibrary, AST::NameSpace::StandardLibrary); |
| if (!parseResult) |
| return makeUnexpected(parseResult.error()); |
| |
| NameFinder nameFinder; |
| nameFinder.Visitor::visit(program); |
| HashSet<String> functionNames = nameFinder.takeFunctionNames(); |
| HashSet<String> allFunctionNames; |
| // The name of a call to a cast operator is the name of the type, so we can't match them up correctly. |
| // Instead, just include all casting operators. |
| functionNames.add("operator cast"_str); |
| // We need to make sure that an author can't write a function with the same signature as anything in the standard library. |
| // If they do so, we need to make sure it collides, so we include all potential duplicates here, and the "checkDuplicateFunctions" pass enforces it. |
| for (auto& functionDefinition : program.functionDefinitions()) |
| functionNames.add(functionDefinition->name()); |
| while (!functionNames.isEmpty()) { |
| auto nativeFunctionDeclarationsCount = program.nativeFunctionDeclarations().size(); |
| auto functionDefinitionsCount = program.functionDefinitions().size(); |
| for (const auto& name : functionNames) { |
| if (allFunctionNames.contains(name)) |
| continue; |
| auto iterator = standardLibraryFunctionMap.get().find(name); |
| if (iterator == standardLibraryFunctionMap.get().end()) |
| continue; |
| auto stringView = StringView(standardLibrary.get()).substring(iterator->value.start, iterator->value.end - iterator->value.start); |
| if (verbose) { |
| dataLogLn("---------------------------"); |
| dataLogLn(stringView); |
| dataLogLn("---------------------------"); |
| } |
| auto start = program.functionDefinitions().size(); |
| auto parseResult = parser.parse(program, stringView, ParsingMode::StandardLibrary, AST::NameSpace::StandardLibrary); |
| if (!parseResult) |
| return makeUnexpected(parseResult.error()); |
| if (verbose) { |
| if (program.functionDefinitions().size() != start) |
| dataLogLn("non native stdlib function: '", name, "'"); |
| } |
| allFunctionNames.add(name); |
| } |
| for ( ; nativeFunctionDeclarationsCount < program.nativeFunctionDeclarations().size(); ++nativeFunctionDeclarationsCount) |
| nameFinder.Visitor::visit(program.nativeFunctionDeclarations()[nativeFunctionDeclarationsCount]); |
| for ( ; functionDefinitionsCount < program.functionDefinitions().size(); ++functionDefinitionsCount) |
| nameFinder.Visitor::visit(program.functionDefinitions()[functionDefinitionsCount]); |
| functionNames = nameFinder.takeFunctionNames(); |
| } |
| return { }; |
| } |
| |
| } // namespace WHLSL |
| |
| } // namespace WebCore |
| |
| #endif |