llvm-svn: 59857

force the caller to check instead.  This eliminates the need (and the
risk!) of weird null DiagnosticBuilder's floating around.

llvm-svn: 59856

llvm-svn: 59853

llvm-svn: 59851

llvm-svn: 59850

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

llvm-svn: 59848

In PTHLexer::DiscardToEndOfLine() use Lex() instead of AdvanceToken().  This handles transitions in the preprocessor state.

llvm-svn: 59845

llvm-svn: 59843

When creating the raw tokens for PTHLexer, make sure the token representing the file to include is checked for being an identifier.

llvm-svn: 59842

llvm-svn: 59840

llvm-svn: 59838

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: 59832

llvm-svn: 59831

llvm-svn: 59829

themselves for gc API generation purposes.

llvm-svn: 59828

llvm-svn: 59827

llvm-svn: 59824

llvm-svn: 59822

llvm-svn: 59821

llvm-svn: 59820

llvm-svn: 59819

Enable some more operator overloading tests, and don't look into an identifier for functions that might not have one

llvm-svn: 59818

llvm-svn: 59806

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

the Diagnostic class. Since we can already only have one diagnostic in 
flight at a time, this shrinks DiagnosticInfo.

This reduces DiagnosticInfo to being basically a rather crazy smart pointer
to a DiagnosticInfo :)

llvm-svn: 59798

in the DiagnosticInfo class.  This requires marking them as taking
a const DiagnosticInfo, which is bogus (they logically mutate DI), 
but works with the C++ type system.

llvm-svn: 59797

llvm-svn: 59794

llvm-svn: 59791

llvm-svn: 59789

with a raw lexer instead of a PP lexer.  This means that -verify doesn't scan
#include'd headers for expected-error/warning strings, and it also means that it
doesn't ignore them in #if 0.

llvm-svn: 59774

llvm-svn: 59773

llvm-svn: 59772

llvm-svn: 59771

llvm-svn: 59770

- Move out logic for handling the end-of-file to LexEndOfFile (to match the Lexer) class.  The logic now mirrors the Lexer class more, which allows us to pass most of the Preprocessor test cases.

llvm-svn: 59768

code gen. method.

llvm-svn: 59767