a new NamedDecl::getAsString() method.

Change uses of Selector::getName() to just pass in a Selector 
where possible (e.g. to diagnostics) instead of going through
an std::string.

This also adds new formatters for objcinstance and objcclass
as described in the dox.

llvm-svn: 59933

llvm-svn: 59923

llvm-svn: 59922

"previously defined here" diagnostics all notes.

llvm-svn: 59920

"definitions", not declarations.  Point out the location of the 
original definition.

llvm-svn: 59919

Also, point out where the previous decl was.  This unxfails two tests.

llvm-svn: 59918

with implicit quotes around them.  This has a bunch of follow-on 
effects and requires tweaking to a whole lot of code.  This causes
a regression in two tests (xfailed) by causing it to emit things like:

  Line 10: duplicate interface declaration for category 'MyClass1' ('Category1')

instead of:

  Line 10: duplicate interface declaration for category 'MyClass1(Category1)'

I will fix this in a follow-up commit.

As part of this, I had to start switching stuff to use ->getDeclName() instead
of Decl::getName() for consistency.  This is good, but I was planning to do this
as an independent patch.  There will be several follow-on patches
to clean up some of the mess, but this patch is already too big.

llvm-svn: 59917

without calling getAsString().  This implicitly puts quotes around the
name, so diagnostics need to be tweaked to accommodate this.

llvm-svn: 59916

No functionality change.

llvm-svn: 59908

diags over to use this.  QualTypes implicitly print single quotes around 
them for uniformity and future extension.

Doing this requires a little function pointer dance to prevent libbasic
from depending on libast.

llvm-svn: 59907

llvm-svn: 59884

llvm-svn: 59881

'implicit' property with no 'setter'.

llvm-svn: 59878

Issuing diagnostics when assigning to read-only properties.
This is work in progress.

llvm-svn: 59874

Implement a %plural modifier for complex plural forms in diagnostics. Use it in the overload diagnostics.

llvm-svn: 59871

clang executable (when built with gcc 4.2 on the mac) from 14519740 to 
14495028 bytes.  This shrinks individual object files as well: SemaChecking
from 23580->22248, SemaDeclObjc from 61368->57376, SemaExpr from 
115628->110516, as well as several others.

llvm-svn: 59867

one for building up the diagnostic that is in flight (DiagnosticBuilder)
and one for pulling structured information out of the diagnostic when
formatting and presenting it.

There is no functionality change with this patch.

llvm-svn: 59849

This version uses VLAs to represent arrays. I'll try an alternative way next, but I want this safe first.

llvm-svn: 59835

llvm-svn: 59831

llvm-svn: 59829

llvm-svn: 59822

llvm-svn: 59819

llvm-svn: 59805

strings.  This allows us to have considerable flexibility in how
these things are displayed and provides extra information that
allows us to merge away diagnostics that are very similar.

Diagnostic modifiers are a string of characters with the regex
[-a-z]+ that occur between the % and digit.  They may 
optionally have an argument that can parameterize them.

For now, I've added two example modifiers.  One is a very useful
tool that allows you to factor commonality across diagnostics
that need single words or phrases combined.  Basically you can
use %select{a|b|c}4 with with an integer argument that selects
either a/b/c based on an integer value in the range [0..3).

The second modifier is also an integer modifier, aimed to help
English diagnostics handle plurality.  "%s3" prints to 's' if 
integer argument #3 is not 1, otherwise it prints to nothing.
I'm fully aware that 's' is an English concept and doesn't
apply to all situations (mouse vs mice).  However, this is very
useful and we can add other crazy modifiers once we add support
for polish! ;-)

I converted a couple C++ diagnostics over to use this as an
example, I'd appreciate it if others could merge the other
likely candiates.  If you have other modifiers that you want,
lets talk on cfe-dev.

llvm-svn: 59803

and fall through better.

llvm-svn: 59799

llvm-svn: 59791

llvm-svn: 59789

llvm-svn: 59743

expression (smart_ptr->mem).

llvm-svn: 59732

llvm-svn: 59729

llvm-svn: 59716

llvm-svn: 59714

llvm-svn: 59713

llvm-svn: 59712

of doing the lookup_decl, the hash lookup is cheap.  Also,
typeid doesn't happen enough in real world code to worry about
it.

I'd like to eventually get rid of KnownFunctionIDs from Sema
also, but today is not that day.

llvm-svn: 59711

looking up the "std" identifier is trivial.  Just do it, particularly
since this is only done if the namespace hasn't already been looked up.

llvm-svn: 59710

used in one cold place.

llvm-svn: 59709

just check for it when needed.  It doesn't incur real cost
in any hot paths.

llvm-svn: 59708

from Sebastian to enforce that a literal string is passed in,
and use this to avoid having to call strlen on it.

llvm-svn: 59706

diagnostics on use of __weak attribute on fields,
Early support for read/write barriers for objc fields.

llvm-svn: 59682