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/*
* 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_SYMBOLTABLE
#define SKSL_SYMBOLTABLE
#include <memory>
#include <unordered_map>
#include <vector>
#include "SkSLErrorReporter.h"
#include "SkSLSymbol.h"
namespace SkSL {
struct FunctionDeclaration;
/**
* Maps identifiers to symbols. Functions, in particular, are mapped to either FunctionDeclaration
* or UnresolvedFunction depending on whether they are overloaded or not.
*/
class SymbolTable {
public:
SymbolTable(ErrorReporter& errorReporter)
: fErrorReporter(errorReporter) {}
SymbolTable(std::shared_ptr<SymbolTable> parent, ErrorReporter& errorReporter)
: fParent(parent)
, fErrorReporter(errorReporter) {}
const Symbol* operator[](const SkString& name);
void add(const SkString& name, std::unique_ptr<Symbol> symbol);
void addWithoutOwnership(const SkString& name, const Symbol* symbol);
Symbol* takeOwnership(Symbol* s);
void markAllFunctionsBuiltin();
const std::shared_ptr<SymbolTable> fParent;
private:
static std::vector<const FunctionDeclaration*> GetFunctions(const Symbol& s);
std::vector<std::unique_ptr<Symbol>> fOwnedPointers;
std::unordered_map<SkString, const Symbol*> fSymbols;
ErrorReporter& fErrorReporter;
};
} // namespace
#endif
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