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modern objc abi rewriter: mode protocol metadata 

for modern objc abi.

llvm-svn: 150011
This commit is contained in:
Fariborz Jahanian 2012-02-07 23:31:52 +00:00
parent 849a67bba2
commit 67f7c55a9c
1 changed files with 59 additions and 10 deletions
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69
clang/lib/Rewrite/RewriteModernObjC.cpp
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@ -5172,7 +5172,7 @@ void RewriteModernObjC::RewriteIvarOffsetComputation(ObjCIvarDecl *ivar,
/// WriteModernMetadataDeclarations - Writes out metadata declarations for modern ABI.
/// struct _prop_t {
/// char *name;
/// const char *name;
/// char *attributes;
/// }
@ -5221,15 +5221,8 @@ static void WriteModernMetadataDeclarations(std::string &Result) {
return;
Result += "\nstruct _prop_t {\n";
Result += "\tchar *name;\n";
Result += "\tchar *attributes;\n";
Result += "};\n";
Result += "\nstruct _prop_list_t {\n";
Result += "\tunsigned int entsize; // sizeof(struct _prop_t)\n";
Result += "\tunsigned int count_of_properties;\n";
Result += "\tstruct _prop_t prop_list[/*count_of_properties*/];\n";
Result += "\tconst char *name;\n";
Result += "\tconst char *attributes;\n";
Result += "};\n";
Result += "\nstruct _protocol_t;\n";
@ -5272,6 +5265,16 @@ static void Write_method_list_t_TypeDecl(std::string &Result,
Result += "}";
}
static void Write__prop_list_t_TypeDecl(std::string &Result,
unsigned int property_count) {
Result += "struct /*_prop_list_t*/"; Result += " {\n";
Result += "\tunsigned int entsize; // sizeof(struct _prop_t)\n";
Result += "\tunsigned int count_of_properties;\n";
Result += "\tstruct _prop_t prop_list[";
Result += utostr(property_count); Result += "];\n";
Result += "}";
}
static void Write_method_list_t_initializer(ASTContext *Context, std::string &Result,
ArrayRef<ObjCMethodDecl *> Methods,
StringRef VarName,
@ -5306,6 +5309,40 @@ static void Write_method_list_t_initializer(ASTContext *Context, std::string &Re
}
}
static void Write__prop_list_t_initializer(RewriteModernObjC &RewriteObj,
ASTContext *Context, std::string &Result,
ArrayRef<ObjCPropertyDecl *> Properties,
const Decl *Container,
StringRef VarName,
StringRef ProtocolName) {
if (Properties.size() > 0) {
Result += "\nstatic ";
Write__prop_list_t_TypeDecl(Result, Properties.size());
Result += " "; Result += VarName;
Result += ProtocolName;
Result += " __attribute__ ((used, section (\"__DATA,__objc_const\"))) = {\n";
Result += "\t"; Result += "sizeof(_prop_t)"; Result += ",\n";
Result += "\t"; Result += utostr(Properties.size()); Result += ",\n";
for (unsigned i = 0, e = Properties.size(); i < e; i++) {
ObjCPropertyDecl *PropDecl = Properties[i];
if (i == 0)
Result += "\t{{\"";
else
Result += "\t{\"";
Result += PropDecl->getName(); Result += "\",";
std::string PropertyTypeString, QuotePropertyTypeString;
Context->getObjCEncodingForPropertyDecl(PropDecl, Container, PropertyTypeString);
RewriteObj.QuoteDoublequotes(PropertyTypeString, QuotePropertyTypeString);
Result += "\""; Result += QuotePropertyTypeString; Result += "\"";
if (i == e-1)
Result += "}}\n";
else
Result += "},\n";
}
Result += "};\n";
}
}
/// RewriteObjCProtocolMetaData - Rewrite protocols meta-data.
void RewriteModernObjC::RewriteObjCProtocolMetaData(
ObjCProtocolDecl *PDecl, StringRef prefix,
@ -5375,6 +5412,18 @@ void RewriteModernObjC::RewriteObjCProtocolMetaData(
"_OBJC_PROTOCOL_OPT_CLASS_METHODS_",
PDecl->getNameAsString());
// Protocol's property metadata.
std::vector<ObjCPropertyDecl *> ProtocolProperties;
for (ObjCContainerDecl::prop_iterator I = PDecl->prop_begin(),
E = PDecl->prop_end(); I != E; ++I)
ProtocolProperties.push_back(*I);
Write__prop_list_t_initializer(*this, Context, Result, ProtocolProperties,
/* Container */0,
"_OBJC_PROTOCOL_PROPERTIES_",
PDecl->getNameAsString());
// ====================================Legacy ABI ====================================================
if (PDecl->instmeth_begin() != PDecl->instmeth_end()) {