cling/test/ErrorRecovery/AnonymousDecls.C
2014-08-13 16:08:36 +02:00

72 lines
2.2 KiB
C

//------------------------------------------------------------------------------
// CLING - the C++ LLVM-based InterpreterG :)
//
// This file is dual-licensed: you can choose to license it under the University
// of Illinois Open Source License or the GNU Lesser General Public License. See
// LICENSE.TXT for details.
//------------------------------------------------------------------------------
// RUN: cat %s | %cling -Xclang -verify 2>&1 | FileCheck %s
// Actually test clang::DeclContext::removeDecl(). This function in clang is
// the main method that is used for the error recovery. This means when there
// is an error in cling's input we need to revert all the declarations that came
// in from the same transaction. Even when we have anonymous declarations we
// need to be able to remove them from the declaration context. In a compiler's
// point of view there is no way that one can call removeDecl() and pass in anon
// decl, because the method is used when shadowing decls, which must have names.
// The issue is (and we patched it) is that removeDecl is trying to remove the
// anon decl (which doesn't have name) from the symbol (lookup) tables, which
// doesn't make sense.
// The current test checks if that codepath in removeDecl still exists because
// it is important for the stable error recovery in cling
.storeState "testMyClass"
class MyClass {
struct {
int a;
error_here; // expected-error {{C++ requires a type specifier for all declarations}}
};
};
.compareState "testMyClass"
// CHECK-NOT: File with AST differencies stored in: testMyClassAST.diff
.storeState "testStructX"
struct X {
union {
float f3;
double d2;
} named;
union {
int i;
float f;
union {
float f2;
mutable double d;
};
};
void test_unqual_references();
struct {
int a;
float b;
};
void test_unqual_references_const() const;
mutable union { // expected-error{{anonymous union at class scope must not have a storage specifier}}
float c1;
double c2;
};
};
.compareState "testStructX"
// CHECK-NOT: File with AST differencies stored in: testStructXAST.diff
// Make FileCheck happy with having at least one positive rule:
int a = 5
// CHECK: (int) 5
.q