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objc modern translator. ivar offset symbols. 

llvm-svn: 150413
This commit is contained in:
Fariborz Jahanian 2012-02-13 20:59:02 +00:00
parent 8fd0f2a6cb
commit 75e71b99ec
1 changed files with 40 additions and 2 deletions
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42
clang/lib/Rewrite/RewriteModernObjC.cpp
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@ -5473,6 +5473,39 @@ static void Write__extendedMethodTypes_initializer(RewriteModernObjC &RewriteObj
}
}
static void Write_IvarOffsetVar(RewriteModernObjC &RewriteObj,
ASTContext *Context, std::string &Result,
ArrayRef<ObjCIvarDecl *> Ivars,
StringRef VarName,
StringRef ClassName) {
// FIXME. visibilty of offset symbols may have to be set; for Darwin
// this is what happens:
/**
if (Ivar->getAccessControl() == ObjCIvarDecl::Private ||
Ivar->getAccessControl() == ObjCIvarDecl::Package ||
Class->getVisibility() == HiddenVisibility)
Visibility shoud be: HiddenVisibility;
else
Visibility shoud be: DefaultVisibility;
*/
if (Ivars.size() > 0) {
Result += "\n";
for (unsigned i =0, e = Ivars.size(); i < e; i++) {
ObjCIvarDecl *IvarDecl = Ivars[i];
Result += "unsigned long int "; Result += VarName;
Result += ClassName; Result += "_";
Result += IvarDecl->getName();
Result += " __attribute__ ((used, section (\"__DATA,__objc_ivar\")))";
Result += " = ";
Result += "__OFFSETOFIVAR__(struct ";
Result += ClassName;
Result += "_IMPL, ";
Result += IvarDecl->getName(); Result += ");\n";
}
}
}
static void Write__ivar_list_t_initializer(RewriteModernObjC &RewriteObj,
ASTContext *Context, std::string &Result,
ArrayRef<ObjCIvarDecl *> Ivars,
@ -5492,8 +5525,10 @@ static void Write__ivar_list_t_initializer(RewriteModernObjC &RewriteObj,
Result += "\t{{";
else
Result += "\t {";
// FIXME: // pointer to ivar offset location
Result += "(unsigned long int *)0, ";
Result += "(unsigned long int *)&OBJC_IVAR_$_";
Result += ClassName; Result += "_"; Result += IvarDecl->getName();
Result += ", ";
Result += "\""; Result += IvarDecl->getName(); Result += "\", ";
std::string IvarTypeString, QuoteIvarTypeString;
@ -5736,6 +5771,9 @@ void RewriteModernObjC::RewriteObjCClassMetaData(ObjCImplementationDecl *IDecl,
IVars.push_back(IVD);
}
Write_IvarOffsetVar(*this, Context, Result, IVars, "OBJC_IVAR_$_",
CDecl->getNameAsString());
Write__ivar_list_t_initializer(*this, Context, Result, IVars,
"_OBJC_INSTANCE_VARIABLES_",
CDecl->getNameAsString());