PullExpressionsIntoFunctions.h

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//

// Copyright 2025 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.

//

// PullExpressionsIntoFunctions: Certain GLSL expressions are not translatable as single

// expressions. Those that need to be translated into multiple expressions, or into one or more

// statements, are pulled into functions and replaced by a function call.

//

// This works by pulling all temporaries used inside of ternaries into global variables, which is

// fine because recursion is not allowed in GLSL. Function parameters are much more difficult to

// pull into globals, so they are just all passed to the new function.

//

// This makes all arbitrary ternaries, comma operators, outparams, and multielement swizzle

// assignments translatable into WGSL.

#ifndef COMPILER_TRANSLATOR_TREEOPS_WGSL_PULLEXPRESSIONSINTOFUNCTIONS_H_

#define COMPILER_TRANSLATOR_TREEOPS_WGSL_PULLEXPRESSIONSINTOFUNCTIONS_H_

#include "common/angleutils.h"

#include "compiler/translator/Compiler.h"

namespace sh

class TCompiler;

class TIntermBlock;

class TSymbolTable;

[[nodiscard]] bool PullExpressionsIntoFunctions(TCompiler *compiler, TIntermBlock *root);

}  // namespace sh

#endif  // COMPILER_TRANSLATOR_TREEOPS_WGSL_PULLEXPRESSIONSINTOFUNCTIONS_H_