chromium/third_party/glslang/src/glslang/MachineIndependent/intermOut.cpp

//
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// Copyright (C) 2017, 2022-2024 Arm Limited.
// Modifications Copyright (C) 2020 Advanced Micro Devices, Inc. All rights reserved.
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#include "localintermediate.h"
#include "../Include/InfoSink.h"

#ifdef _MSC_VER
#include <cfloat>
#else
#include <cmath>
#endif
#include <cstdint>


namespace glslang {

//
// Two purposes:
// 1.  Show an example of how to iterate tree.  Functions can
//     also directly call Traverse() on children themselves to
//     have finer grained control over the process than shown here.
//     See the last function for how to get started.
// 2.  Print out a text based description of the tree.
//

//
// Use this class to carry along data from node to node in
// the traversal
//
class TOutputTraverser : public TIntermTraverser { … };

//
// Helper functions for printing, not part of traversing.
//

static void OutputTreeText(TInfoSink& infoSink, const TIntermNode* node, const int depth)
{ … }

//
// The rest of the file are the traversal functions.  The last one
// is the one that starts the traversal.
//
// Return true from interior nodes to have the external traversal
// continue on to children.  If you process children yourself,
// return false.
//

bool TOutputTraverser::visitBinary(TVisit /* visit */, TIntermBinary* node)
{ … }

bool TOutputTraverser::visitUnary(TVisit /* visit */, TIntermUnary* node)
{ … }

bool TOutputTraverser::visitAggregate(TVisit /* visit */, TIntermAggregate* node)
{ … }

bool TOutputTraverser::visitSelection(TVisit /* visit */, TIntermSelection* node)
{ … }

// Print infinities and NaNs, and numbers in a portable way.
// Goals:
//   - portable (across IEEE 754 platforms)
//   - shows all possible IEEE values
//   - shows simple numbers in a simple way, e.g., no leading/trailing 0s
//   - shows all digits, no premature rounding
static void OutputDouble(TInfoSink& out, double value, TOutputTraverser::EExtraOutput extra)
{ … }

static void OutputConstantUnion(TInfoSink& out, const TIntermTyped* node, const TConstUnionArray& constUnion,
    TOutputTraverser::EExtraOutput extra, int depth)
{ … }

void TOutputTraverser::visitConstantUnion(TIntermConstantUnion* node)
{ … }

void TOutputTraverser::visitSymbol(TIntermSymbol* node)
{ … }

bool TOutputTraverser::visitLoop(TVisit /* visit */, TIntermLoop* node)
{ … }

bool TOutputTraverser::visitBranch(TVisit /* visit*/, TIntermBranch* node)
{ … }

bool TOutputTraverser::visitSwitch(TVisit /* visit */, TIntermSwitch* node)
{ … }

//
// This function is the one to call externally to start the traversal.
// Individual functions can be initialized to 0 to skip processing of that
// type of node.  It's children will still be processed.
//
void TIntermediate::output(TInfoSink& infoSink, bool tree)
{ … }

} // end namespace glslang