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-rw-r--r--Source/cmDocumentGeneratorExpressions.h6
-rw-r--r--Source/cmGeneratorExpression.cxx88
-rw-r--r--Source/cmGeneratorExpression.h4
-rw-r--r--Source/cmGeneratorExpressionEvaluator.cxx10
4 files changed, 99 insertions, 9 deletions
diff --git a/Source/cmDocumentGeneratorExpressions.h b/Source/cmDocumentGeneratorExpressions.h
index 445fd0e..1927012 100644
--- a/Source/cmDocumentGeneratorExpressions.h
+++ b/Source/cmDocumentGeneratorExpressions.h
@@ -26,6 +26,12 @@
"strings which contain a '>' for example.\n" \
" $<COMMA> = A literal ','. Used to compare " \
"strings which contain a ',' for example.\n" \
+ " $<INSTALL_INTERFACE:...> = content of \"...\" when the property " \
+ "is exported using install(EXPORT), and empty otherwise.\n" \
+ " $<BUILD_INTERFACE:...> = content of \"...\" when the property " \
+ "is exported using export(), or when the target is used by another " \
+ "target in the same buildsystem. Expands to the empty string " \
+ "otherwise.\n" \
" $<TARGET_FILE:tgt> = main file (.exe, .so.1.2, .a)\n" \
" $<TARGET_LINKER_FILE:tgt> = file used to link (.a, .lib, .so)\n" \
" $<TARGET_SONAME_FILE:tgt> = file with soname (.so.3)\n" \
diff --git a/Source/cmGeneratorExpression.cxx b/Source/cmGeneratorExpression.cxx
index 3fd4a5f..841fbb7 100644
--- a/Source/cmGeneratorExpression.cxx
+++ b/Source/cmGeneratorExpression.cxx
@@ -123,15 +123,9 @@ cmCompiledGeneratorExpression::~cmCompiledGeneratorExpression()
}
}
-std::string cmGeneratorExpression::Preprocess(const std::string &input,
- PreprocessContext context)
+//----------------------------------------------------------------------------
+static std::string stripAllGeneratorExpressions(const std::string &input)
{
- if (context != StripAllGeneratorExpressions)
- {
- assert(!"cmGeneratorExpression::Preprocess called with invalid args");
- return std::string();
- }
-
std::string result;
std::string::size_type pos = 0;
std::string::size_type lastPos = pos;
@@ -170,3 +164,81 @@ std::string cmGeneratorExpression::Preprocess(const std::string &input,
result += input.substr(lastPos);
return result;
}
+
+//----------------------------------------------------------------------------
+static std::string stripExportInterface(const std::string &input,
+ cmGeneratorExpression::PreprocessContext context)
+{
+ std::string result;
+
+ std::string::size_type pos = 0;
+ std::string::size_type lastPos = pos;
+ while((pos = input.find("$<BUILD_INTERFACE:", lastPos)) != input.npos
+ || (pos = input.find("$<INSTALL_INTERFACE:", lastPos)) != input.npos)
+ {
+ result += input.substr(lastPos, pos - lastPos);
+ const bool gotInstallInterface = input[pos + 2] == 'I';
+ pos += gotInstallInterface ? sizeof("$<INSTALL_INTERFACE:") - 1
+ : sizeof("$<BUILD_INTERFACE:") - 1;
+ int nestingLevel = 1;
+ const char *c = input.c_str() + pos;
+ const char * const cStart = c;
+ for ( ; *c; ++c)
+ {
+ if(c[0] == '$' && c[1] == '<')
+ {
+ ++nestingLevel;
+ ++c;
+ continue;
+ }
+ if(c[0] == '>')
+ {
+ --nestingLevel;
+ if (nestingLevel != 0)
+ {
+ continue;
+ }
+ if(context == cmGeneratorExpression::BuildInterface
+ && !gotInstallInterface)
+ {
+ result += input.substr(pos, c - cStart);
+ }
+ else if(context == cmGeneratorExpression::InstallInterface
+ && gotInstallInterface)
+ {
+ result += input.substr(pos, c - cStart);
+ }
+ break;
+ }
+ }
+ const std::string::size_type traversed = (c - cStart) + 1;
+ if (!*c)
+ {
+ result += std::string(gotInstallInterface ? "$<INSTALL_INTERFACE:"
+ : "$<BUILD_INTERFACE:")
+ + input.substr(pos, traversed);
+ }
+ pos += traversed;
+ lastPos = pos;
+ }
+ result += input.substr(lastPos);
+
+ return result;
+}
+
+//----------------------------------------------------------------------------
+std::string cmGeneratorExpression::Preprocess(const std::string &input,
+ PreprocessContext context)
+{
+ if (context == StripAllGeneratorExpressions)
+ {
+ return stripAllGeneratorExpressions(input);
+ }
+ else if (context == BuildInterface || context == InstallInterface)
+ {
+ return stripExportInterface(input, context);
+ }
+
+ assert(!"cmGeneratorExpression::Preprocess called with invalid args");
+ return std::string();
+}
diff --git a/Source/cmGeneratorExpression.h b/Source/cmGeneratorExpression.h
index 15e637c..99056a5 100644
--- a/Source/cmGeneratorExpression.h
+++ b/Source/cmGeneratorExpression.h
@@ -51,7 +51,9 @@ public:
cmsys::auto_ptr<cmCompiledGeneratorExpression> Parse(const char* input);
enum PreprocessContext {
- StripAllGeneratorExpressions
+ StripAllGeneratorExpressions,
+ BuildInterface,
+ InstallInterface
};
static std::string Preprocess(const std::string &input,
diff --git a/Source/cmGeneratorExpressionEvaluator.cxx b/Source/cmGeneratorExpressionEvaluator.cxx
index 3b7cfc0..e20e203 100644
--- a/Source/cmGeneratorExpressionEvaluator.cxx
+++ b/Source/cmGeneratorExpressionEvaluator.cxx
@@ -96,6 +96,12 @@ static const struct OneNode : public cmGeneratorExpressionNode
} 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 \
{ \
@@ -593,6 +599,10 @@ cmGeneratorExpressionNode* GetNode(const std::string &identifier)
return &commaNode;
else if (identifier == "TARGET_PROPERTY")
return &targetPropertyNode;
+ else if (identifier == "BUILD_INTERFACE")
+ return &buildInterfaceNode;
+ else if (identifier == "INSTALL_INTERFACE")
+ return &installInterfaceNode;
return 0;
}