root/trunk/compiler/cppAst/ast/SymbolTable.cpp @ 5
| 2 | krennw | /**
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*
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* OOAS Compiler - C++ AST
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*
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* Copyright 2015, AIT Austrian Institute of Technology.
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* All rights reserved.
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*
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* SEE THE "LICENSE" FILE FOR THE TERMS UNDER WHICH THIS FILE IS PROVIDED.
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*
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* If you modify the file please update the list of contributors below to in-
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* clude your name. Please also stick to the coding convention of using TABs
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* to do the basic (block-level) indentation and spaces for anything after
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* that. (Enable the display of special chars and it should be pretty obvious
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* what this means.) Also, remove all trailing whitespace.
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*
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* Contributors:
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* Willibald Krenn (AIT)
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* Stephan Zimmerer (AIT)
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* Christoph Czurda (AIT)
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*
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*/
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/*
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* SymbolTable.cpp
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*
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* Created on: Dec 23, 2013
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* Author: willibald
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*/
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#include "SymbolTable.hpp"
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namespace Ast {
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bool SymbolTable::addIdentifier(Identifier* anIdent) {
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if (anIdent != nullptr) {
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std::pair<std::string,Identifier*> toInsert(anIdent->tokenText(),anIdent);
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auto pair = m_symbols.insert(toInsert);
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if (!pair.second) {
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throw new Base::UnsupportedOperationException(
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boost::format("Identifier '%s' already exists") % anIdent->tokenText());
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}
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m_symbols[anIdent->tokenText()] = anIdent;
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m_identifiers.insert(anIdent);
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return true;
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}
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return false;
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}
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//Binary predicate that, taking two values of the same type of those contained in the list,
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//returns true if the first argument goes before the second argument in the strict weak ordering it defines, and false otherwise.
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bool symbolSort(Identifier*& a, Identifier*& b) {
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return a->tokenText() < b->tokenText();
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}
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void SymbolTable::setSymbolList(std::list<Identifier*>& newList) {
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newList.sort(&symbolSort);
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m_symbols.clear();
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m_identifiers.clear();
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for (auto& s: newList)
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addIdentifier(s);
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}
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Identifier* SymbolTable::get(const char* aKey) {
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auto iter = m_symbols.find(aKey);
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return iter == m_symbols.end() ? nullptr : iter->second;
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}
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}
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