The rewrite facility's footprint is small so it's not worth going to these
lengths to support disabling at configure time, particularly since key compiler
features now depend on it.
Meanwhile the Objective-C rewriters have been moved under the
ENABLE_CLANG_ARCMT umbrella for now as they're comparatively heavy and still
potentially worth excluding from lightweight builds.
Tests are now passing with any combination of feature flags. The flags
historically haven't been tested by LLVM's build servers so caveat emptor.
llvm-svn: 213171
This is similar to how we divide up the StaticAnalyzer libraries to separate
core functionality to what is clearly associated with Frontend actions.
llvm-svn: 163050
first writing the changed files to a temporary location and then overwriting
the original files atomically.
Also adds a RewriterTestContext to aid unit testing rewrting logic in general.
llvm-svn: 157260
Language-design credit goes to a lot of people, but I particularly want
to single out Blaine Garst and Patrick Beard for their contributions.
Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself,
in no particular order.
llvm-svn: 133103
To determine what the indentation should be, a SourceLocation 'parentIndent' parameter is used that should be at
a source location with an indentation one degree lower than the given range.
llvm-svn: 129628
to use them instead of SourceRange. CharSourceRange is just a SourceRange
plus a bool that indicates whether the range has the end character resolved
or whether the end location is the start of the end token. While most of
the compiler wants to think of ranges that have ends that are the start of
the end token, the printf diagnostic stuff wants to highlight ranges within
tokens.
This is transparent to the diagnostic stuff. To start taking advantage of
the new capabilities, you can do something like this:
Diag(..) << CharSourceRange::getCharRange(Begin,End)
llvm-svn: 106338
SourceManager's getBuffer() (and similar) operations. This abstract
can be used to force callers to cope with errors in getBuffer(), such
as missing files and changed files. Fix a bunch of callers to use the
new interface.
Add some very basic checks for file consistency (file size,
modification time) into ContentCache::getBuffer(), although these
checks don't help much until we've updated the main callers (e.g.,
SourceManager::getSpelling()).
llvm-svn: 98585
- Please accept my sincere apologies for the gratuitous elimination of code
duplication, manual string length counting, unnecessary strlen calls, etc.
llvm-svn: 79448
This is simple enough, but then I thought it would be nice to make PrintingPolicy
get a LangOptions so that various things can key off "bool" and "C++" independently.
This spiraled out of control. There are many fixme's, but I think things are slightly
better than they were before.
One thing that can be improved: CFG should probably have an ASTContext pointer in it,
which would simplify its clients.
llvm-svn: 74493
delta tree.
The issue is roughly a conflict in ReplaceText between two kinds of
uses. One, it should be possible to replace a replacement: for example, the
ObjC rewriter calls ReplaceStmt for an expression, then replaces the resulting
expression with another expression. Two, it should be possible to
replace text that already has text inserted before it: for example, the
HTML rewriter inserts a bunch of tags at the beginning of the line, then
tries to escape the first character on the line. This patch
distinguishes the two cases by storing the deltas separately;
essentially, replacements and insertions no longer interfere with
each other.
Another possibility would be to add some sort of flag to ReplaceText, but
this seems a bit more intuitive and flexible.
There are a few downsides to the current solution: one is that there isn't
any way to remove/replace an insertion without touching additional
surrounding text; if such an operation turns out to be useful, an
additional method or flag can be added. Another is that an insertion
and replacing a string of length zero are distinct operations; I'm not
sure how to resolve this, or whether it will be confusing in practice.
This is relatively sensitive code, so please test and tell me if
anything breaks.
llvm-svn: 72000
This allows it to accurately measure tokens, so that we get:
t.cpp:8:13: error: unknown type name 'X'
static foo::X P;
~~~~~^
instead of the woefully inferior:
t.cpp:8:13: error: unknown type name 'X'
static foo::X P;
~~~~ ^
Most of this is just plumbing to push the reference around.
llvm-svn: 69099
ground work for implementing #line, and fixes the "out of macro ID's"
problem.
There is nothing particularly tricky about the code, other than the
very performance sensitive SourceManager::getFileID() method.
llvm-svn: 62978
"FileID" a concept that is now enforced by the compiler's type checker
instead of yet-another-random-unsigned floating around.
This is an important distinction from the "FileID" currently tracked by
SourceLocation. *That* FileID may refer to the start of a file or to a
chunk within it. The new FileID *only* refers to the file (and its
#include stack and eventually #line data), it cannot refer to a chunk.
FileID is a completely opaque datatype to all clients, only SourceManager
is allowed to poke and prod it.
llvm-svn: 62407
a nice shiny B+ Tree variant. This fixes the last of the known algorithmic
issues with the rewriter, allowing a significant speedup. For example,
-emit-html on Ted's 500K .i file speeds up from 26.8s -> 0.64s in a
debug build (41x!) and 5.475s -> 0.132s (41x!) in an optimized build.
This code is functional but needs to be cleaned up, ifdefs removed, better
commented, and moved to a .cpp file. I plan to do this tomorrow.
llvm-svn: 49635
(but simple!) datastructures in the rewriter with a more complex but
more efficient one.
This replaces the Deltas vector with a specialized BTree that makes
delta lookups much more efficient. This speeds up -emit-html on a 500K
.i file from 157.154 to 27.127 seconds on my machine (5.8x).
While this code is functional, it isn't very pretty, I have much
refactoring planned for it, and will remove the USE_VECTOR ifdef.
Stay tuned.
llvm-svn: 49586
lib dir and move all the libraries into it. This follows the main
llvm tree, and allows the libraries to be built in parallel. The
top level now enforces that all the libs are built before Driver,
but we don't care what order the libs are built in. This speeds
up parallel builds, particularly incremental ones.
llvm-svn: 48402
Hans Wennborg