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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2012 Stephen Kelly <steveire@gmail.com>
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
#ifndef cmGeneratorExpressionEvaluator_h
#define cmGeneratorExpressionEvaluator_h
#include "cmGeneratorExpressionContext.h"
#include "cmListFileCache.h"
#include <string>
#include <vector>
struct cmGeneratorExpressionDAGChecker;
struct cmGeneratorExpressionNode;
struct cmGeneratorExpressionEvaluator
{
cmGeneratorExpressionEvaluator() {}
virtual ~cmGeneratorExpressionEvaluator() {}
enum Type
{
Text,
Generator
};
virtual Type GetType() const = 0;
virtual std::string Evaluate(cmGeneratorExpressionContext* context,
cmGeneratorExpressionDAGChecker*) const = 0;
private:
cmGeneratorExpressionEvaluator(const cmGeneratorExpressionEvaluator&);
void operator=(const cmGeneratorExpressionEvaluator&);
};
struct TextContent : public cmGeneratorExpressionEvaluator
{
TextContent(const char* start, size_t length)
: Content(start)
, Length(length)
{
}
std::string Evaluate(cmGeneratorExpressionContext*,
cmGeneratorExpressionDAGChecker*) const
{
return std::string(this->Content, this->Length);
}
Type GetType() const { return cmGeneratorExpressionEvaluator::Text; }
void Extend(size_t length) { this->Length += length; }
size_t GetLength() { return this->Length; }
private:
const char* Content;
size_t Length;
};
struct GeneratorExpressionContent : public cmGeneratorExpressionEvaluator
{
GeneratorExpressionContent(const char* startContent, size_t length);
void SetIdentifier(std::vector<cmGeneratorExpressionEvaluator*> identifier)
{
this->IdentifierChildren = identifier;
}
void SetParameters(
std::vector<std::vector<cmGeneratorExpressionEvaluator*> > parameters)
{
this->ParamChildren = parameters;
}
Type GetType() const { return cmGeneratorExpressionEvaluator::Generator; }
std::string Evaluate(cmGeneratorExpressionContext* context,
cmGeneratorExpressionDAGChecker*) const;
std::string GetOriginalExpression() const;
~GeneratorExpressionContent();
private:
std::string EvaluateParameters(const cmGeneratorExpressionNode* node,
const std::string& identifier,
cmGeneratorExpressionContext* context,
cmGeneratorExpressionDAGChecker* dagChecker,
std::vector<std::string>& parameters) const;
std::string ProcessArbitraryContent(
const cmGeneratorExpressionNode* node, const std::string& identifier,
cmGeneratorExpressionContext* context,
cmGeneratorExpressionDAGChecker* dagChecker,
std::vector<std::vector<cmGeneratorExpressionEvaluator*> >::const_iterator
pit) const;
private:
std::vector<cmGeneratorExpressionEvaluator*> IdentifierChildren;
std::vector<std::vector<cmGeneratorExpressionEvaluator*> > ParamChildren;
const char* StartContent;
size_t ContentLength;
};
#endif
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