scope.cpp

// Copyright 2012-2013 Kevin Cox

/*******************************************************************************
*                                                                              *
*  This software is provided 'as-is', without any express or implied           *
*  warranty. In no event will the authors be held liable for any damages       *
*  arising from the use of this software.                                      *
*                                                                              *
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*  including commercial applications, and to alter it and redistribute it      *
*  freely, subject to the following restrictions:                              *
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*  1. The origin of this software must not be misrepresented; you must not     *
*     claim that you wrote the original software. If you use this software in  *
*     a product, an acknowledgment in the product documentation would be       *
*     appreciated but is not required.                                         *
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*     misrepresented as being the original software.                           *
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*  3. This notice may not be removed or altered from any source distribution.  *                                                           *
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*******************************************************************************/

#include "scope.h"

#include "statement.h"
#include "error.h"

Scope::Scope():
	parent(NULL)
{
}

Variable *Scope::findVariable(QString name)
{
	SymbolMap::Iterator i = symbols.find(name);

	if ( i == symbols.end() )
	{
		if ( parent == NULL ) return NULL; // Not found.

		return parent->findVariable(name);
	}

	return *i;
}

Variable *Scope::newVariable(QString name)
{
	Variable *v = new Variable(name);
	symbols.insert(name, v);

	return v;
}

Scope *Scope::setParent(Scope *p)
{
	parent = p;

	return this;
}

Scope *Scope::globalScope()
{
	if ( parent == NULL ) return this;
	else                  return parent->globalScope();
}

Scope *Scope::parseScope(SmartBuffer *b)
{
}