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CMake/Source/cmGeneratorExpressionEvaluator.cxx
Stephen Kelly e48d84209c Cache context-independent includes on evaluation. 
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.
2013-02-03 23:04:03 +01:00

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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.
============================================================================*/
#include "cmMakefile.h"
#include "cmGeneratorExpressionEvaluator.h"
#include "cmGeneratorExpressionParser.h"
#include "cmGeneratorExpressionDAGChecker.h"
#include "cmGeneratorExpression.h"
#include <cmsys/String.h>
#include <assert.h>
//----------------------------------------------------------------------------
#if !defined(__SUNPRO_CC) || __SUNPRO_CC > 0x510
static
#endif
void reportError(cmGeneratorExpressionContext *context,
const std::string &expr, const std::string &result)
{
context->HadError = true;
if (context->Quiet)
{
return;
}
cmOStringStream e;
e << "Error evaluating generator expression:\n"
<< " " << expr << "\n"
<< result;
context->Makefile->GetCMakeInstance()
->IssueMessage(cmake::FATAL_ERROR, e.str().c_str(),
context->Backtrace);
}
//----------------------------------------------------------------------------
struct cmGeneratorExpressionNode
{
virtual ~cmGeneratorExpressionNode() {}
virtual bool GeneratesContent() const { return true; }
virtual bool RequiresLiteralInput() const { return false; }
virtual bool AcceptsSingleArbitraryContentParameter() const
{ return false; }
virtual int NumExpectedParameters() const { return 1; }
virtual std::string Evaluate(const std::vector<std::string> &parameters,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *content,
cmGeneratorExpressionDAGChecker *dagChecker
) const = 0;
};
//----------------------------------------------------------------------------
static const struct ZeroNode : public cmGeneratorExpressionNode
{
ZeroNode() {}
virtual bool GeneratesContent() const { return false; }
virtual bool AcceptsSingleArbitraryContentParameter() const { return true; }
std::string Evaluate(const std::vector<std::string> &,
cmGeneratorExpressionContext *,
const GeneratorExpressionContent *,
cmGeneratorExpressionDAGChecker *) const
{
// Unreachable
return std::string();
}
} zeroNode;
//----------------------------------------------------------------------------
static const struct OneNode : public cmGeneratorExpressionNode
{
OneNode() {}
virtual bool AcceptsSingleArbitraryContentParameter() const { return true; }
std::string Evaluate(const std::vector<std::string> &,
cmGeneratorExpressionContext *,
const GeneratorExpressionContent *,
cmGeneratorExpressionDAGChecker *) const
{
// Unreachable
return std::string();
}
} oneNode;
//----------------------------------------------------------------------------
static const struct OneNode buildInterfaceNode;
//----------------------------------------------------------------------------
static const struct ZeroNode installInterfaceNode;
//----------------------------------------------------------------------------
#define BOOLEAN_OP_NODE(OPNAME, OP, SUCCESS_VALUE, FAILURE_VALUE) \
static const struct OP ## Node : public cmGeneratorExpressionNode \
{ \
OP ## Node () {} \
/* We let -1 carry the meaning 'at least one' */ \
virtual int NumExpectedParameters() const { return -1; } \
\
std::string Evaluate(const std::vector<std::string> &parameters, \
cmGeneratorExpressionContext *context, \
const GeneratorExpressionContent *content, \
cmGeneratorExpressionDAGChecker *) const \
{ \
std::vector<std::string>::const_iterator it = parameters.begin(); \
const std::vector<std::string>::const_iterator end = parameters.end(); \
for ( ; it != end; ++it) \
{ \
if (*it == #FAILURE_VALUE) \
{ \
return #FAILURE_VALUE; \
} \
else if (*it != #SUCCESS_VALUE) \
{ \
reportError(context, content->GetOriginalExpression(), \
"Parameters to $<" #OP "> must resolve to either '0' or '1'."); \
return std::string(); \
} \
} \
return #SUCCESS_VALUE; \
} \
} OPNAME;
BOOLEAN_OP_NODE(andNode, AND, 1, 0)
BOOLEAN_OP_NODE(orNode, OR, 0, 1)
#undef BOOLEAN_OP_NODE
//----------------------------------------------------------------------------
static const struct NotNode : public cmGeneratorExpressionNode
{
NotNode() {}
std::string Evaluate(const std::vector<std::string> &parameters,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *content,
cmGeneratorExpressionDAGChecker *) const
{
if (*parameters.begin() != "0" && *parameters.begin() != "1")
{
reportError(context, content->GetOriginalExpression(),
"$<NOT> parameter must resolve to exactly one '0' or '1' value.");
return std::string();
}
return *parameters.begin() == "0" ? "1" : "0";
}
} notNode;
//----------------------------------------------------------------------------
static const struct BoolNode : public cmGeneratorExpressionNode
{
BoolNode() {}
virtual int NumExpectedParameters() const { return 1; }
std::string Evaluate(const std::vector<std::string> &parameters,
cmGeneratorExpressionContext *,
const GeneratorExpressionContent *,
cmGeneratorExpressionDAGChecker *) const
{
return !cmSystemTools::IsOff(parameters.begin()->c_str()) ? "1" : "0";
}
} boolNode;
//----------------------------------------------------------------------------
static const struct StrEqualNode : public cmGeneratorExpressionNode
{
StrEqualNode() {}
virtual int NumExpectedParameters() const { return 2; }
std::string Evaluate(const std::vector<std::string> &parameters,
cmGeneratorExpressionContext *,
const GeneratorExpressionContent *,
cmGeneratorExpressionDAGChecker *) const
{
return *parameters.begin() == parameters[1] ? "1" : "0";
}
} strEqualNode;
//----------------------------------------------------------------------------
static const struct Angle_RNode : public cmGeneratorExpressionNode
{
Angle_RNode() {}
virtual int NumExpectedParameters() const { return 0; }
std::string Evaluate(const std::vector<std::string> &,
cmGeneratorExpressionContext *,
const GeneratorExpressionContent *,
cmGeneratorExpressionDAGChecker *) const
{
return ">";
}
} angle_rNode;
//----------------------------------------------------------------------------
static const struct CommaNode : public cmGeneratorExpressionNode
{
CommaNode() {}
virtual int NumExpectedParameters() const { return 0; }
std::string Evaluate(const std::vector<std::string> &,
cmGeneratorExpressionContext *,
const GeneratorExpressionContent *,
cmGeneratorExpressionDAGChecker *) const
{
return ",";
}
} commaNode;
//----------------------------------------------------------------------------
static const struct ConfigurationNode : public cmGeneratorExpressionNode
{
ConfigurationNode() {}
virtual int NumExpectedParameters() const { return 0; }
std::string Evaluate(const std::vector<std::string> &,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *,
cmGeneratorExpressionDAGChecker *) const
{
context->HadContextSensitiveCondition = true;
return context->Config ? context->Config : "";
}
} configurationNode;
//----------------------------------------------------------------------------
static const struct ConfigurationTestNode : public cmGeneratorExpressionNode
{
ConfigurationTestNode() {}
virtual int NumExpectedParameters() const { return 1; }
std::string Evaluate(const std::vector<std::string> &parameters,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *content,
cmGeneratorExpressionDAGChecker *) const
{
cmsys::RegularExpression configValidator;
configValidator.compile("^[A-Za-z0-9_]*$");
if (!configValidator.find(parameters.begin()->c_str()))
{
reportError(context, content->GetOriginalExpression(),
"Expression syntax not recognized.");
return std::string();
}
context->HadContextSensitiveCondition = true;
if (!context->Config)
{
return parameters.front().empty() ? "1" : "0";
}
if (cmsysString_strcasecmp(parameters.begin()->c_str(),
context->Config) == 0)
{
return "1";
}
if (context->CurrentTarget
&& context->CurrentTarget->IsImported())
{
const char* loc = 0;
const char* imp = 0;
std::string suffix;
return context->CurrentTarget->GetMappedConfig(context->Config,
&loc,
&imp,
suffix) ? "1" : "0";
}
return "0";
}
} configurationTestNode;
static const struct TargetDefinedNode : public cmGeneratorExpressionNode
{
TargetDefinedNode() {}
virtual int NumExpectedParameters() const { return 1; }
std::string Evaluate(const std::vector<std::string> &parameters,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *,
cmGeneratorExpressionDAGChecker *) const
{
return context->Makefile->FindTargetToUse(parameters.front().c_str())
? "1" : "0";
}
} targetDefinedNode;
//----------------------------------------------------------------------------
static const char* targetPropertyTransitiveWhitelist[] = {
"INTERFACE_INCLUDE_DIRECTORIES"
, "INTERFACE_COMPILE_DEFINITIONS"
};
//----------------------------------------------------------------------------
static const struct TargetPropertyNode : public cmGeneratorExpressionNode
{
TargetPropertyNode() {}
// This node handles errors on parameter count itself.
virtual int NumExpectedParameters() const { return -1; }
std::string Evaluate(const std::vector<std::string> &parameters,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *content,
cmGeneratorExpressionDAGChecker *dagCheckerParent
) const
{
if (parameters.size() != 1 && parameters.size() != 2)
{
reportError(context, content->GetOriginalExpression(),
"$<TARGET_PROPERTY:...> expression requires one or two parameters");
return std::string();
}
cmsys::RegularExpression targetNameValidator;
// The ':' is supported to allow use with IMPORTED targets. At least
// Qt 4 and 5 IMPORTED targets use ':' as the namespace delimiter.
targetNameValidator.compile("^[A-Za-z0-9_.:-]+$");
cmsys::RegularExpression propertyNameValidator;
propertyNameValidator.compile("^[A-Za-z0-9_]+$");
cmTarget* target = context->HeadTarget;
std::string propertyName = *parameters.begin();
if (!target && parameters.size() == 1)
{
reportError(context, content->GetOriginalExpression(),
"$<TARGET_PROPERTY:prop> may only be used with targets. It may not "
"be used with add_custom_command. Specify the target to read a "
"property from using the $<TARGET_PROPERTY:tgt,prop> signature "
"instead.");
return std::string();
}
if (parameters.size() == 2)
{
if (parameters.begin()->empty() && parameters[1].empty())
{
reportError(context, content->GetOriginalExpression(),
"$<TARGET_PROPERTY:tgt,prop> expression requires a non-empty "
"target name and property name.");
return std::string();
}
if (parameters.begin()->empty())
{
reportError(context, content->GetOriginalExpression(),
"$<TARGET_PROPERTY:tgt,prop> expression requires a non-empty "
"target name.");
return std::string();
}
std::string targetName = parameters.front();
propertyName = parameters[1];
if (!targetNameValidator.find(targetName.c_str()))
{
if (!propertyNameValidator.find(propertyName.c_str()))
{
::reportError(context, content->GetOriginalExpression(),
"Target name and property name not supported.");
return std::string();
}
::reportError(context, content->GetOriginalExpression(),
"Target name not supported.");
return std::string();
}
target = context->Makefile->FindTargetToUse(
targetName.c_str());
if (!target)
{
cmOStringStream e;
e << "Target \""
<< targetName
<< "\" not found.";
reportError(context, content->GetOriginalExpression(), e.str());
return std::string();
}
}
if (target == context->HeadTarget)
{
// Keep track of the properties seen while processing.
// The evaluation of the LINK_LIBRARIES generator expressions
// will check this to ensure that properties form a DAG.
context->SeenTargetProperties.insert(propertyName);
}
if (propertyName.empty())
{
reportError(context, content->GetOriginalExpression(),
"$<TARGET_PROPERTY:...> expression requires a non-empty property "
"name.");
return std::string();
}
if (!propertyNameValidator.find(propertyName.c_str()))
{
::reportError(context, content->GetOriginalExpression(),
"Property name not supported.");
return std::string();
}
assert(target);
cmGeneratorExpressionDAGChecker dagChecker(context->Backtrace,
target->GetName(),
propertyName,
content,
dagCheckerParent);
switch (dagChecker.check())
{
case cmGeneratorExpressionDAGChecker::SELF_REFERENCE:
dagChecker.reportError(context, content->GetOriginalExpression());
return std::string();
case cmGeneratorExpressionDAGChecker::CYCLIC_REFERENCE:
// No error. We just skip cyclic references.
return std::string();
case cmGeneratorExpressionDAGChecker::ALREADY_SEEN:
// No error. We're not going to find anything new here.
return std::string();
case cmGeneratorExpressionDAGChecker::DAG:
break;
}
const char *prop = target->GetProperty(propertyName.c_str());
if (!prop)
{
if (target->IsImported())
{
return std::string();
}
if (dagCheckerParent && dagCheckerParent->EvaluatingLinkLibraries())
{
return std::string();
}
if (propertyName == "POSITION_INDEPENDENT_CODE")
{
context->HadContextSensitiveCondition = true;
return target->GetLinkInterfaceDependentBoolProperty(
"POSITION_INDEPENDENT_CODE", context->Config) ? "1" : "0";
}
if (target->IsLinkInterfaceDependentBoolProperty(propertyName,
context->Config))
{
context->HadContextSensitiveCondition = true;
return target->GetLinkInterfaceDependentBoolProperty(
propertyName,
context->Config) ? "1" : "0";
}
if (target->IsLinkInterfaceDependentStringProperty(propertyName,
context->Config))
{
context->HadContextSensitiveCondition = true;
const char *propContent =
target->GetLinkInterfaceDependentStringProperty(
propertyName,
context->Config);
return propContent ? propContent : "";
}
return std::string();
}
for (size_t i = 0;
i < (sizeof(targetPropertyTransitiveWhitelist) /
sizeof(*targetPropertyTransitiveWhitelist));
++i)
{
if (targetPropertyTransitiveWhitelist[i] == propertyName)
{
cmGeneratorExpression ge(context->Backtrace);
cmsys::auto_ptr<cmCompiledGeneratorExpression> cge = ge.Parse(prop);
std::string result = cge->Evaluate(context->Makefile,
context->Config,
context->Quiet,
context->HeadTarget,
target,
&dagChecker);
if (cge->GetHadContextSensitiveCondition())
{
context->HadContextSensitiveCondition = true;
}
return result;
}
}
return prop;
}
} targetPropertyNode;
//----------------------------------------------------------------------------
static const struct TargetNameNode : public cmGeneratorExpressionNode
{
TargetNameNode() {}
virtual bool GeneratesContent() const { return true; }
virtual bool AcceptsSingleArbitraryContentParameter() const { return true; }
virtual bool RequiresLiteralInput() const { return true; }
std::string Evaluate(const std::vector<std::string> &parameters,
cmGeneratorExpressionContext *,
const GeneratorExpressionContent *,
cmGeneratorExpressionDAGChecker *) const
{
return parameters.front();
}
virtual int NumExpectedParameters() const { return 1; }
} targetNameNode;
//----------------------------------------------------------------------------
static const char* targetPolicyWhitelist[] = {
"CMP0003"
, "CMP0004"
, "CMP0008"
, "CMP0020"
};
cmPolicies::PolicyStatus statusForTarget(cmTarget *tgt, const char *policy)
{
#define RETURN_POLICY(POLICY) \
if (strcmp(policy, #POLICY) == 0) \
{ \
return tgt->GetPolicyStatus ## POLICY (); \
} \
RETURN_POLICY(CMP0003)
RETURN_POLICY(CMP0004)
RETURN_POLICY(CMP0008)
RETURN_POLICY(CMP0020)
#undef RETURN_POLICY
assert("!Unreachable code. Not a valid policy");
return cmPolicies::WARN;
}
cmPolicies::PolicyID policyForString(const char *policy_id)
{
#define RETURN_POLICY_ID(POLICY_ID) \
if (strcmp(policy_id, #POLICY_ID) == 0) \
{ \
return cmPolicies:: POLICY_ID; \
} \
RETURN_POLICY_ID(CMP0003)
RETURN_POLICY_ID(CMP0004)
RETURN_POLICY_ID(CMP0008)
RETURN_POLICY_ID(CMP0020)
#undef RETURN_POLICY_ID
assert("!Unreachable code. Not a valid policy");
return cmPolicies::CMP0002;
}
//----------------------------------------------------------------------------
static const struct TargetPolicyNode : public cmGeneratorExpressionNode
{
TargetPolicyNode() {}
virtual int NumExpectedParameters() const { return 1; }
std::string Evaluate(const std::vector<std::string> &parameters,
cmGeneratorExpressionContext *context ,
const GeneratorExpressionContent *content,
cmGeneratorExpressionDAGChecker *) const
{
if (!context->HeadTarget)
{
reportError(context, content->GetOriginalExpression(),
"$<TARGET_POLICY:prop> may only be used with targets. It may not "
"be used with add_custom_command.");
return std::string();
}
context->HadContextSensitiveCondition = true;
for (size_t i = 0;
i < (sizeof(targetPolicyWhitelist) /
sizeof(*targetPolicyWhitelist));
++i)
{
const char *policy = targetPolicyWhitelist[i];
if (parameters.front() == policy)
{
cmMakefile *mf = context->HeadTarget->GetMakefile();
switch(statusForTarget(context->HeadTarget, policy))
{
case cmPolicies::WARN:
mf->IssueMessage(cmake::AUTHOR_WARNING,
mf->GetPolicies()->
GetPolicyWarning(policyForString(policy)));
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
case cmPolicies::OLD:
return "0";
case cmPolicies::NEW:
return "1";
}
}
}
reportError(context, content->GetOriginalExpression(),
"$<TARGET_POLICY:prop> may only be used with a limited number of "
"policies. Currently it may be used with policies CMP0003, CMP0004, "
"CMP0008 and CMP0020."
);
return std::string();
}
} targetPolicyNode;
//----------------------------------------------------------------------------
static const struct InstallPrefixNode : public cmGeneratorExpressionNode
{
InstallPrefixNode() {}
virtual bool GeneratesContent() const { return true; }
virtual int NumExpectedParameters() const { return 0; }
std::string Evaluate(const std::vector<std::string> &,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *content,
cmGeneratorExpressionDAGChecker *) const
{
reportError(context, content->GetOriginalExpression(),
"INSTALL_PREFIX is a marker for install(EXPORT) only. It "
"should never be evaluated.");
return std::string();
}
} installPrefixNode;
//----------------------------------------------------------------------------
static const struct LinkedNode : public cmGeneratorExpressionNode
{
LinkedNode() {}
virtual bool GeneratesContent() const { return true; }
virtual int NumExpectedParameters() const { return 1; }
virtual bool RequiresLiteralInput() const { return true; }
std::string Evaluate(const std::vector<std::string> &parameters,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *content,
cmGeneratorExpressionDAGChecker *dagChecker) const
{
if (dagChecker->EvaluatingIncludeDirectories())
{
return this->GetInterfaceProperty(parameters.front(),
"INCLUDE_DIRECTORIES",
context, content, dagChecker);
}
if (dagChecker->EvaluatingCompileDefinitions())
{
return this->GetInterfaceProperty(parameters.front(),
"COMPILE_DEFINITIONS",
context, content, dagChecker);
}
reportError(context, content->GetOriginalExpression(),
"$<LINKED:...> may only be used in INCLUDE_DIRECTORIES and "
"COMPILE_DEFINITIONS properties.");
return std::string();
}
private:
std::string GetInterfaceProperty(const std::string &item,
const std::string &prop,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *content,
cmGeneratorExpressionDAGChecker *dagCheckerParent) const
{
cmTarget *target = context->CurrentTarget
->GetMakefile()->FindTargetToUse(item.c_str());
if (!target)
{
return std::string();
}
std::string propertyName = "INTERFACE_" + prop;
const char *propContent = target->GetProperty(propertyName.c_str());
if (!propContent)
{
return std::string();
}
cmGeneratorExpressionDAGChecker dagChecker(context->Backtrace,
target->GetName(),
propertyName,
content,
dagCheckerParent);
switch (dagChecker.check())
{
case cmGeneratorExpressionDAGChecker::SELF_REFERENCE:
dagChecker.reportError(context, content->GetOriginalExpression());
return std::string();
case cmGeneratorExpressionDAGChecker::CYCLIC_REFERENCE:
// No error. We just skip cyclic references.
return std::string();
case cmGeneratorExpressionDAGChecker::ALREADY_SEEN:
// No error. We're not going to find anything new here.
return std::string();
case cmGeneratorExpressionDAGChecker::DAG:
break;
}
cmGeneratorExpression ge(context->Backtrace);
cmsys::auto_ptr<cmCompiledGeneratorExpression> cge = ge.Parse(propContent);
std::string result = cge->Evaluate(context->Makefile,
context->Config,
context->Quiet,
context->HeadTarget,
target,
&dagChecker);
if (cge->GetHadContextSensitiveCondition())
{
context->HadContextSensitiveCondition = true;
}
return result;
}
} linkedNode;
//----------------------------------------------------------------------------
template<bool linker, bool soname>
struct TargetFilesystemArtifactResultCreator
{
static std::string Create(cmTarget* target,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *content);
};
//----------------------------------------------------------------------------
template<>
struct TargetFilesystemArtifactResultCreator<false, true>
{
static std::string Create(cmTarget* target,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *content)
{
// The target soname file (.so.1).
if(target->IsDLLPlatform())
{
::reportError(context, content->GetOriginalExpression(),
"TARGET_SONAME_FILE is not allowed "
"for DLL target platforms.");
return std::string();
}
if(target->GetType() != cmTarget::SHARED_LIBRARY)
{
::reportError(context, content->GetOriginalExpression(),
"TARGET_SONAME_FILE is allowed only for "
"SHARED libraries.");
return std::string();
}
std::string result = target->GetDirectory(context->Config);
result += "/";
result += target->GetSOName(context->Config);
return result;
}
};
//----------------------------------------------------------------------------
template<>
struct TargetFilesystemArtifactResultCreator<true, false>
{
static std::string Create(cmTarget* target,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *content)
{
// The file used to link to the target (.so, .lib, .a).
if(!target->IsLinkable())
{
::reportError(context, content->GetOriginalExpression(),
"TARGET_LINKER_FILE is allowed only for libraries and "
"executables with ENABLE_EXPORTS.");
return std::string();
}
return target->GetFullPath(context->Config,
target->HasImportLibrary());
}
};
//----------------------------------------------------------------------------
template<>
struct TargetFilesystemArtifactResultCreator<false, false>
{
static std::string Create(cmTarget* target,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *)
{
return target->GetFullPath(context->Config, false, true);
}
};
//----------------------------------------------------------------------------
template<bool dirQual, bool nameQual>
struct TargetFilesystemArtifactResultGetter
{
static std::string Get(const std::string &result);
};
//----------------------------------------------------------------------------
template<>
struct TargetFilesystemArtifactResultGetter<false, true>
{
static std::string Get(const std::string &result)
{ return cmSystemTools::GetFilenameName(result); }
};
//----------------------------------------------------------------------------
template<>
struct TargetFilesystemArtifactResultGetter<true, false>
{
static std::string Get(const std::string &result)
{ return cmSystemTools::GetFilenamePath(result); }
};
//----------------------------------------------------------------------------
template<>
struct TargetFilesystemArtifactResultGetter<false, false>
{
static std::string Get(const std::string &result)
{ return result; }
};
//----------------------------------------------------------------------------
template<bool linker, bool soname, bool dirQual, bool nameQual>
struct TargetFilesystemArtifact : public cmGeneratorExpressionNode
{
TargetFilesystemArtifact() {}
virtual int NumExpectedParameters() const { return 1; }
std::string Evaluate(const std::vector<std::string> &parameters,
cmGeneratorExpressionContext *context,
const GeneratorExpressionContent *content,
cmGeneratorExpressionDAGChecker *) const
{
// Lookup the referenced target.
std::string name = *parameters.begin();
cmsys::RegularExpression targetValidator;
// The ':' is supported to allow use with IMPORTED targets.
targetValidator.compile("^[A-Za-z0-9_.:-]+$");
if (!targetValidator.find(name.c_str()))
{
::reportError(context, content->GetOriginalExpression(),
"Expression syntax not recognized.");
return std::string();
}
cmTarget* target = context->Makefile->FindTargetToUse(name.c_str());
if(!target)
{
::reportError(context, content->GetOriginalExpression(),
"No target \"" + name + "\"");
return std::string();
}
if(target->GetType() >= cmTarget::UTILITY &&
target->GetType() != cmTarget::UNKNOWN_LIBRARY)
{
::reportError(context, content->GetOriginalExpression(),
"Target \"" + name + "\" is not an executable or library.");
return std::string();
}
context->Targets.insert(target);
std::string result =
TargetFilesystemArtifactResultCreator<linker, soname>::Create(
target,
context,
content);
if (context->HadError)
{
return std::string();
}
return
TargetFilesystemArtifactResultGetter<dirQual, nameQual>::Get(result);
}
};
//----------------------------------------------------------------------------
static const
TargetFilesystemArtifact<false, false, false, false> targetFileNode;
static const
TargetFilesystemArtifact<true, false, false, false> targetLinkerFileNode;
static const
TargetFilesystemArtifact<false, true, false, false> targetSoNameFileNode;
static const
TargetFilesystemArtifact<false, false, false, true> targetFileNameNode;
static const
TargetFilesystemArtifact<true, false, false, true> targetLinkerFileNameNode;
static const
TargetFilesystemArtifact<false, true, false, true> targetSoNameFileNameNode;
static const
TargetFilesystemArtifact<false, false, true, false> targetFileDirNode;
static const
TargetFilesystemArtifact<true, false, true, false> targetLinkerFileDirNode;
static const
TargetFilesystemArtifact<false, true, true, false> targetSoNameFileDirNode;
//----------------------------------------------------------------------------
static const
cmGeneratorExpressionNode* GetNode(const std::string &identifier)
{
if (identifier == "0")
return &zeroNode;
else if (identifier == "1")
return &oneNode;
else if (identifier == "AND")
return &andNode;
else if (identifier == "OR")
return &orNode;
else if (identifier == "NOT")
return &notNode;
else if (identifier == "CONFIGURATION")
return &configurationNode;
else if (identifier == "CONFIG")
return &configurationTestNode;
else if (identifier == "TARGET_FILE")
return &targetFileNode;
else if (identifier == "TARGET_LINKER_FILE")
return &targetLinkerFileNode;
else if (identifier == "TARGET_SONAME_FILE")
return &targetSoNameFileNode;
else if (identifier == "TARGET_FILE_NAME")
return &targetFileNameNode;
else if (identifier == "TARGET_LINKER_FILE_NAME")
return &targetLinkerFileNameNode;
else if (identifier == "TARGET_SONAME_FILE_NAME")
return &targetSoNameFileNameNode;
else if (identifier == "TARGET_FILE_DIR")
return &targetFileDirNode;
else if (identifier == "TARGET_LINKER_FILE_DIR")
return &targetLinkerFileDirNode;
else if (identifier == "TARGET_SONAME_FILE_DIR")
return &targetSoNameFileDirNode;
else if (identifier == "STREQUAL")
return &strEqualNode;
else if (identifier == "BOOL")
return &boolNode;
else if (identifier == "ANGLE-R")
return &angle_rNode;
else if (identifier == "COMMA")
return &commaNode;
else if (identifier == "TARGET_PROPERTY")
return &targetPropertyNode;
else if (identifier == "TARGET_NAME")
return &targetNameNode;
else if (identifier == "TARGET_POLICY")
return &targetPolicyNode;
else if (identifier == "BUILD_INTERFACE")
return &buildInterfaceNode;
else if (identifier == "INSTALL_INTERFACE")
return &installInterfaceNode;
else if (identifier == "TARGET_DEFINED")
return &targetDefinedNode;
else if (identifier == "INSTALL_PREFIX")
return &installPrefixNode;
else if (identifier == "LINKED")
return &linkedNode;
return 0;
}
//----------------------------------------------------------------------------
GeneratorExpressionContent::GeneratorExpressionContent(
const char *startContent,
unsigned int length)
: StartContent(startContent), ContentLength(length)
{
}
//----------------------------------------------------------------------------
std::string GeneratorExpressionContent::GetOriginalExpression() const
{
return std::string(this->StartContent, this->ContentLength);
}
//----------------------------------------------------------------------------
std::string GeneratorExpressionContent::Evaluate(
cmGeneratorExpressionContext *context,
cmGeneratorExpressionDAGChecker *dagChecker) const
{
std::string identifier;
{
std::vector<cmGeneratorExpressionEvaluator*>::const_iterator it
= this->IdentifierChildren.begin();
const std::vector<cmGeneratorExpressionEvaluator*>::const_iterator end
= this->IdentifierChildren.end();
for ( ; it != end; ++it)
{
identifier += (*it)->Evaluate(context, dagChecker);
if (context->HadError)
{
return std::string();
}
}
}
const cmGeneratorExpressionNode *node = GetNode(identifier);
if (!node)
{
reportError(context, this->GetOriginalExpression(),
"Expression did not evaluate to a known generator expression");
return std::string();
}
if (!node->GeneratesContent())
{
if (node->AcceptsSingleArbitraryContentParameter())
{
if (this->ParamChildren.empty())
{
reportError(context, this->GetOriginalExpression(),
"$<" + identifier + "> expression requires a parameter.");
}
}
else
{
std::vector<std::string> parameters;
this->EvaluateParameters(node, identifier, context, dagChecker,
parameters);
}
return std::string();
}
if (node->AcceptsSingleArbitraryContentParameter())
{
std::string result;
std::vector<std::vector<cmGeneratorExpressionEvaluator*> >::const_iterator
pit = this->ParamChildren.begin();
const
std::vector<std::vector<cmGeneratorExpressionEvaluator*> >::const_iterator
pend = this->ParamChildren.end();
for ( ; pit != pend; ++pit)
{
if (!result.empty())
{
result += ",";
}
std::vector<cmGeneratorExpressionEvaluator*>::const_iterator it
= pit->begin();
const std::vector<cmGeneratorExpressionEvaluator*>::const_iterator end
= pit->end();
for ( ; it != end; ++it)
{
if (node->RequiresLiteralInput())
{
if ((*it)->GetType() != cmGeneratorExpressionEvaluator::Text)
{
reportError(context, this->GetOriginalExpression(),
"$<" + identifier + "> expression requires literal input.");
return std::string();
}
}
result += (*it)->Evaluate(context, dagChecker);
if (context->HadError)
{
return std::string();
}
}
}
if (node->RequiresLiteralInput())
{
std::vector<std::string> parameters;
parameters.push_back(result);
return node->Evaluate(parameters, context, this, dagChecker);
}
return result;
}
std::vector<std::string> parameters;
this->EvaluateParameters(node, identifier, context, dagChecker, parameters);
if (context->HadError)
{
return std::string();
}
return node->Evaluate(parameters, context, this, dagChecker);
}
//----------------------------------------------------------------------------
std::string GeneratorExpressionContent::EvaluateParameters(
const cmGeneratorExpressionNode *node,
const std::string &identifier,
cmGeneratorExpressionContext *context,
cmGeneratorExpressionDAGChecker *dagChecker,
std::vector<std::string> &parameters) const
{
{
std::vector<std::vector<cmGeneratorExpressionEvaluator*> >::const_iterator
pit = this->ParamChildren.begin();
const
std::vector<std::vector<cmGeneratorExpressionEvaluator*> >::const_iterator
pend = this->ParamChildren.end();
for ( ; pit != pend; ++pit)
{
std::string parameter;
std::vector<cmGeneratorExpressionEvaluator*>::const_iterator it =
pit->begin();
const std::vector<cmGeneratorExpressionEvaluator*>::const_iterator end =
pit->end();
for ( ; it != end; ++it)
{
parameter += (*it)->Evaluate(context, dagChecker);
if (context->HadError)
{
return std::string();
}
}
parameters.push_back(parameter);
}
}
int numExpected = node->NumExpectedParameters();
if ((numExpected != -1 && (unsigned int)numExpected != parameters.size()))
{
if (numExpected == 0)
{
reportError(context, this->GetOriginalExpression(),
"$<" + identifier + "> expression requires no parameters.");
}
else if (numExpected == 1)
{
reportError(context, this->GetOriginalExpression(),
"$<" + identifier + "> expression requires "
"exactly one parameter.");
}
else
{
cmOStringStream e;
e << "$<" + identifier + "> expression requires "
<< numExpected
<< " comma separated parameters, but got "
<< parameters.size() << " instead.";
reportError(context, this->GetOriginalExpression(), e.str());
}
return std::string();
}
if (numExpected == -1 && parameters.empty())
{
reportError(context, this->GetOriginalExpression(), "$<" + identifier
+ "> expression requires at least one parameter.");
}
return std::string();
}
//----------------------------------------------------------------------------
static void deleteAll(const std::vector<cmGeneratorExpressionEvaluator*> &c)
{
std::vector<cmGeneratorExpressionEvaluator*>::const_iterator it
= c.begin();
const std::vector<cmGeneratorExpressionEvaluator*>::const_iterator end
= c.end();
for ( ; it != end; ++it)
{
delete *it;
}
}
//----------------------------------------------------------------------------
GeneratorExpressionContent::~GeneratorExpressionContent()
{
deleteAll(this->IdentifierChildren);
typedef std::vector<cmGeneratorExpressionEvaluator*> EvaluatorVector;
typedef std::vector<cmGeneratorExpressionToken> TokenVector;
std::vector<EvaluatorVector>::const_iterator pit =
this->ParamChildren.begin();
const std::vector<EvaluatorVector>::const_iterator pend =
this->ParamChildren.end();
for ( ; pit != pend; ++pit)
{
deleteAll(*pit);
}
}
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