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e48d84209c
Generator expressions whose output depends on the configuration now record that fact. The GetIncludeDirectories method can use that result to cache the include directories for later calls. GetIncludeDirectories is called multiple times for a target for each configuration, so this should restore performance for multi-config generators.
139 lines
3.9 KiB
C++
139 lines
3.9 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2012 Stephen Kelly <steveire@gmail.com>
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#ifndef cmGeneratorExpressionEvaluator_h
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#define cmGeneratorExpressionEvaluator_h
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#include <vector>
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#include <string>
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#include "cmListFileCache.h"
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class cmTarget;
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//----------------------------------------------------------------------------
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struct cmGeneratorExpressionContext
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{
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cmListFileBacktrace Backtrace;
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std::set<cmTarget*> Targets;
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std::set<cmStdString> SeenTargetProperties;
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cmMakefile *Makefile;
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const char *Config;
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cmTarget *HeadTarget; // The target whose property is being evaluated.
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cmTarget *CurrentTarget; // The dependent of HeadTarget which appears
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// directly or indirectly in the property.
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bool Quiet;
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bool HadError;
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bool HadContextSensitiveCondition;
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};
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struct cmGeneratorExpressionDAGChecker;
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struct cmGeneratorExpressionNode;
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//----------------------------------------------------------------------------
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struct cmGeneratorExpressionEvaluator
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{
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cmGeneratorExpressionEvaluator() {}
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virtual ~cmGeneratorExpressionEvaluator() {}
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enum Type
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{
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Text,
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Generator
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};
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virtual Type GetType() const = 0;
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virtual std::string Evaluate(cmGeneratorExpressionContext *context,
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cmGeneratorExpressionDAGChecker *) const = 0;
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private:
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cmGeneratorExpressionEvaluator(const cmGeneratorExpressionEvaluator &);
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void operator=(const cmGeneratorExpressionEvaluator &);
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};
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struct TextContent : public cmGeneratorExpressionEvaluator
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{
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TextContent(const char *start, unsigned int length)
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: Content(start), Length(length)
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{
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}
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std::string Evaluate(cmGeneratorExpressionContext *,
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cmGeneratorExpressionDAGChecker *) const
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{
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return std::string(this->Content, this->Length);
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}
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Type GetType() const
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{
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return cmGeneratorExpressionEvaluator::Text;
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}
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void Extend(unsigned int length)
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{
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this->Length += length;
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}
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unsigned int GetLength()
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{
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return this->Length;
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}
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private:
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const char *Content;
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unsigned int Length;
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};
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//----------------------------------------------------------------------------
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struct GeneratorExpressionContent : public cmGeneratorExpressionEvaluator
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{
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GeneratorExpressionContent(const char *startContent, unsigned int length);
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void SetIdentifier(std::vector<cmGeneratorExpressionEvaluator*> identifier)
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{
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this->IdentifierChildren = identifier;
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}
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void SetParameters(
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std::vector<std::vector<cmGeneratorExpressionEvaluator*> > parameters)
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{
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this->ParamChildren = parameters;
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}
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Type GetType() const
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{
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return cmGeneratorExpressionEvaluator::Generator;
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}
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std::string Evaluate(cmGeneratorExpressionContext *context,
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cmGeneratorExpressionDAGChecker *) const;
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std::string GetOriginalExpression() const;
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~GeneratorExpressionContent();
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private:
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std::string EvaluateParameters(const cmGeneratorExpressionNode *node,
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const std::string &identifier,
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cmGeneratorExpressionContext *context,
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cmGeneratorExpressionDAGChecker *dagChecker,
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std::vector<std::string> ¶meters) const;
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private:
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std::vector<cmGeneratorExpressionEvaluator*> IdentifierChildren;
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std::vector<std::vector<cmGeneratorExpressionEvaluator*> > ParamChildren;
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const char *StartContent;
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unsigned int ContentLength;
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};
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#endif
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