[llvm] r187212 - Add a way to get the context of any particular scope.
Eric Christopher
echristo at gmail.com
Fri Jul 26 10:02:36 PDT 2013
Author: echristo
Date: Fri Jul 26 12:02:36 2013
New Revision: 187212
URL: http://llvm.org/viewvc/llvm-project?rev=187212&view=rev
Log:
Add a way to get the context of any particular scope.
Modified:
llvm/trunk/include/llvm/DebugInfo.h
llvm/trunk/lib/IR/DebugInfo.cpp
Modified: llvm/trunk/include/llvm/DebugInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/DebugInfo.h?rev=187212&r1=187211&r2=187212&view=diff
==============================================================================
--- llvm/trunk/include/llvm/DebugInfo.h (original)
+++ llvm/trunk/include/llvm/DebugInfo.h Fri Jul 26 12:02:36 2013
@@ -187,6 +187,9 @@ namespace llvm {
public:
explicit DIScope(const MDNode *N = 0) : DIDescriptor (N) {}
+ /// Gets the parent scope for this scope node or returns a
+ /// default constructed scope.
+ DIScope getContext() const;
StringRef getFilename() const;
StringRef getDirectory() const;
};
Modified: llvm/trunk/lib/IR/DebugInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/DebugInfo.cpp?rev=187212&r1=187211&r2=187212&view=diff
==============================================================================
--- llvm/trunk/lib/IR/DebugInfo.cpp (original)
+++ llvm/trunk/lib/IR/DebugInfo.cpp Fri Jul 26 12:02:36 2013
@@ -692,6 +692,31 @@ Value *DITemplateValueParameter::getValu
return getField(DbgNode, 4);
}
+// If the current node has a parent scope then return that,
+// else return an empty scope.
+DIScope DIScope::getContext() const {
+
+ if (isType())
+ return DIType(DbgNode).getContext();
+
+ if (isSubprogram())
+ return DISubprogram(DbgNode).getContext();
+
+ if (isLexicalBlock())
+ return DILexicalBlock(DbgNode).getContext();
+
+ if (isLexicalBlockFile())
+ return DILexicalBlockFile(DbgNode).getContext();
+
+ if (isNameSpace())
+ return DINameSpace(DbgNode).getContext();
+
+ if (isFile() || isCompileUnit())
+ return DIScope();
+
+ return DIScope();
+}
+
StringRef DIScope::getFilename() const {
if (!DbgNode)
return StringRef();
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