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20bb3aa53a
parser has hitherto been an implementation waiting for a use. I have now tied the '-o' option for the expression command -- which indicates that the result is an Objective-C object and needs to be printed -- to the ExpressionParser, which communicates the desired type to Clang. Now, if the result of an expression is determined by an Objective-C method call for which there is no type information, that result is implicitly cast to id if and only if the -o option is passed to the expression command. (Otherwise if there is no explicit cast Clang will issue an error. This behavior is identical to what happened before r146756.) Also added a testcase for -o enabled and disabled. llvm-svn: 147099
26 lines
1.3 KiB
Diff
26 lines
1.3 KiB
Diff
Index: include/clang/Basic/LangOptions.def
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===================================================================
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--- include/clang/Basic/LangOptions.def (revision 146622)
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+++ include/clang/Basic/LangOptions.def (working copy)
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@@ -121,6 +121,7 @@
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BENIGN_LANGOPT(InlineVisibilityHidden , 1, 0, "hidden default visibility for inline C++ methods")
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BENIGN_LANGOPT(ParseUnknownAnytype, 1, 0, "__unknown_anytype")
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BENIGN_LANGOPT(DebuggerSupport , 1, 0, "debugger support")
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+BENIGN_LANGOPT(DebuggerCastResultToId, 1, 0, "for 'po' in the debugger, cast the result to id if it is of unknown type")
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BENIGN_LANGOPT(AddressSanitizer , 1, 0, "AddressSanitizer enabled")
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BENIGN_LANGOPT(SpellChecking , 1, 1, "spell-checking")
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Index: lib/Sema/SemaExprCXX.cpp
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===================================================================
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--- lib/Sema/SemaExprCXX.cpp (revision 146622)
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+++ lib/Sema/SemaExprCXX.cpp (working copy)
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@@ -4675,7 +4675,7 @@
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return ExprError();
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// Top-level message sends default to 'id' when we're in a debugger.
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- if (getLangOptions().DebuggerSupport &&
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+ if (getLangOptions().DebuggerCastResultToId &&
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FullExpr.get()->getType() == Context.UnknownAnyTy &&
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isa<ObjCMessageExpr>(FullExpr.get())) {
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FullExpr = forceUnknownAnyToType(FullExpr.take(), Context.getObjCIdType());
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