Diagnose misuse of '.*' and '->*' operators during parse
instead of crashing in code gen.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84968 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Basic/DiagnosticParseKinds.td b/include/clang/Basic/DiagnosticParseKinds.td
index 19b0ea3..a7f3441 100644
--- a/include/clang/Basic/DiagnosticParseKinds.td
+++ b/include/clang/Basic/DiagnosticParseKinds.td
@@ -117,6 +117,8 @@
"expected ';' after static_assert">;
def err_expected_semi_for : Error<"expected ';' in 'for' statement specifier">;
def err_expected_colon_after : Error<"expected ':' after %0">;
+def err_pointer_to_member_type : Error<
+ "invalid use of pointer to member type after %0">;
def err_label_end_of_compound_statement : Error<
"label at end of compound statement: expected statement">;
def err_expected_string_literal : Error<"expected string literal">;
diff --git a/lib/Parse/ParseExpr.cpp b/lib/Parse/ParseExpr.cpp
index 8be89a8..7d056fd 100644
--- a/lib/Parse/ParseExpr.cpp
+++ b/lib/Parse/ParseExpr.cpp
@@ -340,7 +340,18 @@
// Eat the colon.
ColonLoc = ConsumeToken();
}
-
+
+ if ((OpToken.is(tok::periodstar) || OpToken.is(tok::arrowstar))
+ && Tok.is(tok::identifier)) {
+ CXXScopeSpec SS;
+ if (Actions.getTypeName(*Tok.getIdentifierInfo(),
+ Tok.getLocation(), CurScope, &SS)) {
+ const char *Opc = OpToken.is(tok::periodstar) ? "'.*'" : "'->*'";
+ Diag(OpToken, diag::err_pointer_to_member_type) << Opc;
+ return ExprError();
+ }
+
+ }
// Parse another leaf here for the RHS of the operator.
// ParseCastExpression works here because all RHS expressions in C have it
// as a prefix, at least. However, in C++, an assignment-expression could
diff --git a/lib/Sema/SemaExprCXX.cpp b/lib/Sema/SemaExprCXX.cpp
index ee19ff6..6f26ea1 100644
--- a/lib/Sema/SemaExprCXX.cpp
+++ b/lib/Sema/SemaExprCXX.cpp
@@ -212,7 +212,7 @@
PDiag(diag::err_invalid_incomplete_type_use)
<< FullRange))
return ExprError();
-
+
if (RequireNonAbstractType(TyBeginLoc, Ty,
diag::err_allocation_of_abstract_type))
return ExprError();
diff --git a/test/Parser/cxx-parse-member-pointer-op.cpp b/test/Parser/cxx-parse-member-pointer-op.cpp
new file mode 100644
index 0000000..cc2e8b1
--- /dev/null
+++ b/test/Parser/cxx-parse-member-pointer-op.cpp
@@ -0,0 +1,13 @@
+// RUN: clang-cc -fsyntax-only -pedantic -verify %s
+
+struct C {};
+
+typedef void (C::*pmfc)();
+
+void g(pmfc) {
+ C *c;
+ c->*pmfc(); // expected-error {{invalid use of pointer to member type after '->*'}}
+ C c1;
+ c1.*pmfc(); // expected-error {{invalid use of pointer to member type after '.*'}}
+}
+