r237482 - Reverse the order of types in the reference dropping qualifiers error.

Richard Trieu rtrieu at google.com
Fri May 15 18:43:23 PDT 2015


Fixed in r237507.

On Fri, May 15, 2015 at 3:31 PM, Richard Smith <richard at metafoo.co.uk>
wrote:

> On Fri, May 15, 2015 at 3:07 PM, Richard Trieu <rtrieu at google.com> wrote:
>
>> Author: rtrieu
>> Date: Fri May 15 17:07:49 2015
>> New Revision: 237482
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=237482&view=rev
>> Log:
>> Reverse the order of types in the reference dropping qualifiers error.
>>
>> The error has the form ... 'int' ... 'const int' ... dropped qualifiers.
>> At
>> first glance, it appears that the const qualifier is added.  Reverse the
>> types
>> so that the second type is less qualified than the first.
>>
>> Modified:
>>     cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
>>     cfe/trunk/lib/Sema/SemaInit.cpp
>>     cfe/trunk/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-0x.cpp
>>     cfe/trunk/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-var.cpp
>>     cfe/trunk/test/CXX/expr/expr.prim/expr.prim.lambda/p16.cpp
>>     cfe/trunk/test/Misc/diag-template-diffing.cpp
>>     cfe/trunk/test/SemaCXX/builtins-arm.cpp
>>     cfe/trunk/test/SemaCXX/references.cpp
>>
>> Modified: cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td?rev=237482&r1=237481&r2=237482&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td (original)
>> +++ cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td Fri May 15
>> 17:07:49 2015
>> @@ -1490,8 +1490,8 @@ def err_lvalue_reference_bind_to_unrelat
>>    "%diff{to type $ cannot bind to a value of unrelated type $|"
>>    "cannot bind to a value of unrelated type}1,2">;
>>  def err_reference_bind_drops_quals : Error<
>> -  "binding of reference %diff{to type $ to a value of type $ drops
>> qualifiers|"
>> -  "drops qualifiers}0,1">;
>> +  "binding value %diff{of type $ to reference of type $ drops
>> qualifiers|"
>>
>
> This should be "to reference to type", not "to reference of type", because
> the following type is not a reference type.
>
>
>> +  "to reference drops qualifiers}0,1">;
>>  def err_reference_bind_failed : Error<
>>    "reference %diff{to type $ could not bind to an
>> %select{rvalue|lvalue}1 of "
>>    "type $|could not bind to %select{rvalue|lvalue}1 of incompatible
>> type}0,2">;
>>
>> Modified: cfe/trunk/lib/Sema/SemaInit.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaInit.cpp?rev=237482&r1=237481&r2=237482&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/lib/Sema/SemaInit.cpp (original)
>> +++ cfe/trunk/lib/Sema/SemaInit.cpp Fri May 15 17:07:49 2015
>> @@ -6854,8 +6854,8 @@ bool InitializationSequence::Diagnose(Se
>>
>>    case FK_ReferenceInitDropsQualifiers:
>>      S.Diag(Kind.getLocation(), diag::err_reference_bind_drops_quals)
>> -      << DestType.getNonReferenceType()
>>        << Args[0]->getType()
>> +      << DestType.getNonReferenceType()
>>        << Args[0]->getSourceRange();
>>      break;
>>
>>
>> Modified: cfe/trunk/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-0x.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-0x.cpp?rev=237482&r1=237481&r2=237482&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-0x.cpp (original)
>> +++ cfe/trunk/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-0x.cpp Fri May
>> 15 17:07:49 2015
>> @@ -123,7 +123,7 @@ namespace std_example_2 {
>>    const double& rcd2 = 2;
>>    double&& rrd = 2;
>>    const volatile int cvi = 1;
>> -  const int& r2 = cvi; // expected-error{{binding of reference to type
>> 'const int' to a value of type 'const volatile int' drops qualifiers}}
>> +  const int& r2 = cvi; // expected-error{{binding value of type 'const
>> volatile int' to reference of type 'const int' drops qualifiers}}
>>
>>    double d;
>>    double&& rrd2 = d; // expected-error{{rvalue reference to type
>> 'double' cannot bind to lvalue of type 'double'}}
>>
>> Modified: cfe/trunk/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-var.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-var.cpp?rev=237482&r1=237481&r2=237482&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-var.cpp
>> (original)
>> +++ cfe/trunk/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-var.cpp Fri May
>> 15 17:07:49 2015
>> @@ -64,10 +64,10 @@ void bind_lvalue_quals(volatile Base b,
>>                         volatile const int ivc) {
>>    volatile Base &bvr1 = b;
>>    volatile Base &bvr2 = d;
>> -  volatile Base &bvr3 = bvc; // expected-error{{binding of reference to
>> type 'volatile Base' to a value of type 'const volatile Base' drops
>> qualifiers}}
>> -  volatile Base &bvr4 = dvc; // expected-error{{binding of reference to
>> type 'volatile Base' to a value of type 'const volatile Derived' drops
>> qualifiers}}
>> +  volatile Base &bvr3 = bvc; // expected-error{{binding value of type
>> 'const volatile Base' to reference of type 'volatile Base' drops
>> qualifiers}}
>> +  volatile Base &bvr4 = dvc; // expected-error{{binding value of type
>> 'const volatile Derived' to reference of type 'volatile Base' drops
>> qualifiers}}
>>
>> -  volatile int &ir = ivc; // expected-error{{binding of reference to
>> type 'volatile int' to a value of type 'const volatile int' drops
>> qualifiers}}
>> +  volatile int &ir = ivc; // expected-error{{binding value of type
>> 'const volatile int' to reference of type 'volatile int' drops qualifiers}}
>>
>>    const volatile Base &bcvr1 = b;
>>    const volatile Base &bcvr2 = d;
>> @@ -118,8 +118,8 @@ void bind_const_lvalue_to_rvalue() {
>>    const Base &br3 = create<const Base>();
>>    const Base &br4 = create<const Derived>();
>>
>> -  const Base &br5 = create<const volatile Base>(); //
>> expected-error{{binding of reference to type 'const Base' to a value of
>> type 'const volatile Base' drops qualifiers}}
>> -  const Base &br6 = create<const volatile Derived>(); //
>> expected-error{{binding of reference to type 'const Base' to a value of
>> type 'const volatile Derived' drops qualifiers}}
>> +  const Base &br5 = create<const volatile Base>(); //
>> expected-error{{binding value of type 'const volatile Base' to reference of
>> type 'const Base' drops qualifiers}}
>> +  const Base &br6 = create<const volatile Derived>(); //
>> expected-error{{binding value of type 'const volatile Derived' to reference
>> of type 'const Base' drops qualifiers}}
>>
>>    const int &ir = create<int>();
>>  }
>>
>> Modified: cfe/trunk/test/CXX/expr/expr.prim/expr.prim.lambda/p16.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CXX/expr/expr.prim/expr.prim.lambda/p16.cpp?rev=237482&r1=237481&r2=237482&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/test/CXX/expr/expr.prim/expr.prim.lambda/p16.cpp (original)
>> +++ cfe/trunk/test/CXX/expr/expr.prim/expr.prim.lambda/p16.cpp Fri May 15
>> 17:07:49 2015
>> @@ -24,16 +24,16 @@ void test_capture(X x) {
>>    int a;
>>    [=]{
>>      [&] {
>> -      int &x = a;  // expected-error{{binding of reference to type 'int'
>> to a value of type 'const int' drops qualifiers}}
>> -      int &x2 = a;  // expected-error{{binding of reference to type
>> 'int' to a value of type 'const int' drops qualifiers}}
>> +      int &x = a;  // expected-error{{binding value of type 'const int'
>> to reference of type 'int' drops qualifiers}}
>> +      int &x2 = a;  // expected-error{{binding value of type 'const int'
>> to reference of type 'int' drops qualifiers}}
>>      }();
>>    }();
>>
>>    [=]{
>>      [&a] {
>>        [&] {
>> -        int &x = a;  // expected-error{{binding of reference to type
>> 'int' to a value of type 'const int' drops qualifiers}}
>> -        int &x2 = a;  // expected-error{{binding of reference to type
>> 'int' to a value of type 'const int' drops qualifiers}}
>> +        int &x = a;  // expected-error{{binding value of type 'const
>> int' to reference of type 'int' drops qualifiers}}
>> +        int &x2 = a;  // expected-error{{binding value of type 'const
>> int' to reference of type 'int' drops qualifiers}}
>>        }();
>>      }();
>>    }();
>>
>> Modified: cfe/trunk/test/Misc/diag-template-diffing.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Misc/diag-template-diffing.cpp?rev=237482&r1=237481&r2=237482&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/test/Misc/diag-template-diffing.cpp (original)
>> +++ cfe/trunk/test/Misc/diag-template-diffing.cpp Fri May 15 17:07:49 2015
>> @@ -1258,7 +1258,7 @@ using T = condition<(is_const())>;
>>  void foo(const T &t) {
>>    T &t2 = t;
>>  }
>> -// CHECK-ELIDE-NOTREE: binding of reference to type 'condition<[...]>'
>> to a value of type 'const condition<[...]>' drops qualifiers
>> +// CHECK-ELIDE-NOTREE: binding value of type 'const condition<[...]>' to
>> reference of type 'condition<[...]>' drops qualifiers
>>  }
>>
>>  namespace BoolArgumentBitExtended {
>>
>> Modified: cfe/trunk/test/SemaCXX/builtins-arm.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaCXX/builtins-arm.cpp?rev=237482&r1=237481&r2=237482&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/test/SemaCXX/builtins-arm.cpp (original)
>> +++ cfe/trunk/test/SemaCXX/builtins-arm.cpp Fri May 15 17:07:49 2015
>> @@ -2,5 +2,5 @@
>>
>>  // va_list on ARM AAPCS is struct { void* __ap }.
>>  int test1(const __builtin_va_list &ap) {
>> -  return __builtin_va_arg(ap, int); // expected-error {{binding of
>> reference to type '__builtin_va_list' to a value of type 'const
>> __builtin_va_list' drops qualifiers}}
>> +  return __builtin_va_arg(ap, int); // expected-error {{binding value of
>> type 'const __builtin_va_list' to reference of type '__builtin_va_list'
>> drops qualifiers}}
>>  }
>>
>> Modified: cfe/trunk/test/SemaCXX/references.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaCXX/references.cpp?rev=237482&r1=237481&r2=237482&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/test/SemaCXX/references.cpp (original)
>> +++ cfe/trunk/test/SemaCXX/references.cpp Fri May 15 17:07:49 2015
>> @@ -54,7 +54,7 @@ void test4() {
>>  void test5() {
>>    //  const double& rcd2 = 2; // rcd2 refers to temporary with value 2.0
>>    const volatile int cvi = 1;
>> -  const int& r = cvi; // expected-error{{binding of reference to type
>> 'const int' to a value of type 'const volatile int' drops qualifiers}}
>> +  const int& r = cvi; // expected-error{{binding value of type 'const
>> volatile int' to reference of type 'const int' drops qualifiers}}
>>  }
>>
>>  // C++ [dcl.init.ref]p3
>>
>>
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>>
>
>
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