chromium/third_party/glslang/src/glslang/MachineIndependent/localintermediate.h

//
// Copyright (C) 2002-2005  3Dlabs Inc. Ltd.
// Copyright (C) 2016 LunarG, Inc.
// Copyright (C) 2017 ARM Limited.
// Copyright (C) 2015-2018 Google, Inc.
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#ifndef _LOCAL_INTERMEDIATE_INCLUDED_
#define _LOCAL_INTERMEDIATE_INCLUDED_

#include "../Include/intermediate.h"
#include "../Public/ShaderLang.h"
#include "Versions.h"

#include <algorithm>
#include <array>
#include <functional>
#include <set>
#include <string>
#include <vector>

class TInfoSink;

namespace glslang {

struct TMatrixSelector { … };

TVectorSelector;

const int MaxSwizzleSelectors = …;

template<typename selectorType>
class TSwizzleSelectors { … };

//
// Some helper structures for TIntermediate.  Their contents are encapsulated
// by TIntermediate.
//

// Used for call-graph algorithms for detecting recursion, missing bodies, and dead bodies.
// A "call" is a pair: <caller, callee>.
// There can be duplicates. General assumption is the list is small.
struct TCall { … };

// A generic 1-D range.
struct TRange { … };

// An IO range is a 3-D rectangle; the set of (location, component, index) triples all lying
// within the same location range, component range, and index value.  Locations don't alias unless
// all other dimensions of their range overlap.
struct TIoRange { … };

// An offset range is a 2-D rectangle; the set of (binding, offset) pairs all lying
// within the same binding and offset range.
struct TOffsetRange { … };

// Things that need to be tracked per xfb buffer.
struct TXfbBuffer { … };

// Track a set of strings describing how the module was processed.
// This includes command line options, transforms, etc., ideally inclusive enough
// to reproduce the steps used to transform the input source to the output.
// E.g., see SPIR-V OpModuleProcessed.
// Each "process" or "transform" uses is expressed in the form:
//   process arg0 arg1 arg2 ...
//   process arg0 arg1 arg2 ...
// where everything is textual, and there can be zero or more arguments
class TProcesses { … };

class TSymbolTable;
class TSymbol;
class TVariable;

//
// Texture and Sampler transformation mode.
//
enum ComputeDerivativeMode { … };

//
// Status type on AST level. Some uncalled status or functions would be reset in call graph.
// Currently we will keep status set by explicitly declared layout or variable decl.
//
enum AstRefType { … };

class TIdMaps { … };

class TNumericFeatures { … };

// MustBeAssigned wraps a T, asserting that it has been assigned with 
// operator =() before attempting to read with operator T() or operator ->().
// Used to catch cases where fields are read before they have been assigned.
template<typename T>
class MustBeAssigned
{ … };

//
// Set of helper functions to help parse and build the tree.
//
class TIntermediate { … };

} // end namespace glslang

#endif // _LOCAL_INTERMEDIATE_INCLUDED_