kc3-lang/angle/src/compiler/translator/DeferGlobalInitializers.h

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• Hash : 6d40bbdd
  Author :
  Date : 2016-09-30T13:49:38
  

  Split TIntermBlock from TIntermAggregate
  
  The new TIntermBlock node class replaces TIntermAggregate nodes with
  the EOpSequence op. It represents the root node of the tree which is
  a list of declarations and function definitions, and any code blocks
  that can be denoted by curly braces. These include function and loop
  bodies, and if-else branches.
  
  This change enables a bunch of more compile-time type checking, and
  makes the AST code easier to understand and less error-prone.
  
  The PostProcess step that used to be done to ensure that the root node
  is TIntermAggregate is removed in favor of making sure that the root
  node is a TIntermBlock in the glslang.y parsing code.
  
  Intermediate output formatting is improved to print the EOpNull error
  in a clearer way.
  
  After this patch, TIntermAggregate is still used for function
  definitions, function prototypes, function parameter lists, function
  calls, variable and invariant declarations and the comma (sequence)
  operator.
  
  BUG=angleproject:1490
  TEST=angle_unittests, angle_end2end_tests
  
  Change-Id: I04044affff979a11577bc1fe75d747e538b799c8
  Reviewed-on: https://chromium-review.googlesource.com/393726
  Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  

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• src/compiler/translator/DeferGlobalInitializers.h

• //
  // Copyright (c) 2016 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.
  //
  // DeferGlobalInitializers is an AST traverser that moves global initializers into a function, and
  // adds a function call to that function in the beginning of main().
  // This enables initialization of globals with uniforms or non-constant globals, as allowed by
  // the WebGL spec. Some initializers referencing non-constants may need to be unfolded into if
  // statements in HLSL - this kind of steps should be done after DeferGlobalInitializers is run.
  //
  
  #ifndef COMPILER_TRANSLATOR_DEFERGLOBALINITIALIZERS_H_
  #define COMPILER_TRANSLATOR_DEFERGLOBALINITIALIZERS_H_
  
  class TIntermBlock;
  
  void DeferGlobalInitializers(TIntermBlock *root);
  
  #endif  // COMPILER_TRANSLATOR_DEFERGLOBALINITIALIZERS_H_
  

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