http://llvm.org/bugs/show_bug.cgi?id=11399
Bug #: 11399
Summary: diagnostic for referring to nested class before that
type is complete refers to wrong type
Product: clang
Version: unspecified
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P
Component: C++
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
clang provides a slightly noisy set of diagnostics for the following
class Foo {
Foo(Bar const &p);
class Bar {};
};
The results are:
automata.cpp:79:10: error: expected ')'
Foo(Bar const &p);
^
automata.cpp:79:5: note: to match this '('
Foo(Bar const &p);
^
automata.cpp:79:6: error: field has incomplete type 'Foo'
Foo(Bar const &p);
^
automata.cpp:78:7: note: definition of 'Foo' is not complete until the closing
'}'
class Foo {
^
The third diagnostic points out the issue that the type 'Bar' is incomplete,
however the diagnostic says it has the incomplete type 'Foo'. The attached note
then refers to 'Foo' again to point out when exactly the type becomes complete,
however because clang got the wrong type it's pointing at the wrong thing.
Also, the first two diagnostics are just unhelpful noise. A better result might
be just the following two diagnostics:
automata.cpp:79:6: error: field has incomplete type 'Bar'
Foo(Bar const &p);
^
automata.cpp:80:8: note: definition of 'Bar' is not complete until the closing
'}'
class Bar {};
^
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