/*

 * Copyright 2016 Google Inc.

 *

 * Use of this source code is governed by a BSD-style license that can be

 * found in the LICENSE file.

 */

#ifndef SKSL_IRNODE

#define SKSL_IRNODE

#include "include/private/SkSLString.h"

#include "include/private/SkTArray.h"

#include "src/sksl/SkSLASTNode.h"

#include "src/sksl/SkSLLexer.h"

#include "src/sksl/SkSLModifiersPool.h"

#include "src/sksl/SkSLPool.h"

#include <algorithm>

#include <atomic>

#include <unordered_set>

#include <vector>

namespace SkSL {

class Expression;

class FunctionDeclaration;

class FunctionDefinition;

class Statement;

class Symbol;

class SymbolTable;

class Type;

class Variable;

class VariableReference;

enum class VariableRefKind : int8_t;

enum class VariableStorage : int8_t;

/**

 * Represents a node in the intermediate representation (IR) tree. The IR is a fully-resolved

 * version of the program (all types determined, everything validated), ready for code generation.

 */

class IRNode : public Poolable {

public:

    virtual ~IRNode() {}

    virtual String description() const = 0;

    // No copy construction or assignment

    IRNode(const IRNode&) = delete;

    IRNode& operator=(const IRNode&) = delete;

    // character offset of this element within the program being compiled, for error reporting

    // purposes

    int fOffset;

protected:

    IRNode(int offset, int kind)

        : fOffset(offset)

        , fKind(kind) {}

    int fKind;

};

}  // namespace SkSL

#endif