kc3-lang/angle/src/compiler/translator/TranslatorMetalDirect/MapSymbols.cpp

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• Author : Kyle Piddington
  Date : 2021-04-26 16:56:15
  Hash : d7aa0130
  Message : Upstream Apple's direct-to-Metal backend: compile translator. This change is meant to merge the translator changes from Apple's direct-to-Metal backend. Taken from Kyle Piddington's CL: https://chromium-review.googlesource.com/c/angle/angle/+/2857366/ The goal of this CL is to merge the translator code in a state that compiles, but not to switch the Metal backend over to use this translator backend yet. Bug: angleproject:5505 Change-Id: I68a6354604498cd5fd1eb96c13fc56f3b38f2bd0 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2897536 Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>

• src/compiler/translator/TranslatorMetalDirect/MapSymbols.cpp

• //
  // Copyright 2020 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  #include "compiler/translator/TranslatorMetalDirect/MapSymbols.h"
  #include "compiler/translator/TranslatorMetalDirect/IntermRebuild.h"
  
  using namespace sh;
  
  ////////////////////////////////////////////////////////////////////////////////
  
  namespace
  {
  
  class Rewriter : public TIntermRebuild
  {
    private:
      std::function<TIntermNode &(const TFunction *, TIntermSymbol &)> mMap;
  
    public:
      Rewriter(TCompiler &compiler,
               std::function<TIntermNode &(const TFunction *, TIntermSymbol &)> map)
          : TIntermRebuild(compiler, false, true), mMap(map)
      {}
  
      PostResult visitSymbolPost(TIntermSymbol &symbolNode) override
      {
          return mMap(getParentFunction(), symbolNode);
      }
  };
  
  }  // namespace
  
  bool sh::MapSymbols(TCompiler &compiler,
                      TIntermBlock &root,
                      std::function<TIntermNode &(const TFunction *, TIntermSymbol &)> map)
  {
      Rewriter rewriter(compiler, std::move(map));
      if (!rewriter.rebuildRoot(root))
      {
          return false;
      }
      return true;
  }