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path: root/lib/Basic/SourceManager.cpp
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2010-03-21Keep track of the size/modification time of each file source-locationDouglas Gregor
entry in a precompiled header, so that we can detect modified files even when we miss in the stat cache. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99149 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19Fix a longstanding (but previously unknown) bug in the lazyDouglas Gregor
deserialization of precompiled headers, where the deserialization of the source location entry for a buffer (e.g., macro instantiation scratch space) would overwrite a one-element FileID cache in the source manager. When tickled at the wrong time, we would return the wrong decomposed source location and eventually cause c-index-test to crash. Found by dumb luck. It's amazing this hasn't shown up before. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98940 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-17Check the inode in addition to size and modification time to determineDouglas Gregor
whether a file has changed since it was originally read. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98726 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-17Use a simple diagnostic (file modified) when we detect that a file hasDouglas Gregor
changed, rather than trying to point out how it changed. The "why" doesn't matter. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98725 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16Teach SourceManager's content cache to keep track of whether itsDouglas Gregor
buffer was invalid when it was created, and use that bit to always set the "Invalid" flag according to whether the buffer is invalid. This ensures that all accesses to an invalid buffer are marked invalid, improving recovery. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98690 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16Audit all getBuffer() callers (for both the FullSourceLoc andDouglas Gregor
SourceManager versions), updating those callers that need to recover gracefully from failure. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98665 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16Let SourceManager::getBufferData return StringRef instead of a pair of two ↵Benjamin Kramer
const char*. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98630 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16Introduce optional "Invalid" parameters to routines that invoke theDouglas Gregor
SourceManager's getBuffer() and, therefore, could fail, along with Preprocessor::getSpelling(). Use the Invalid parameters in the literal parsers (string, floating point, integral, character) to make them robust against errors that stem from, e.g., PCH files that are not consistent with the underlying file system. I still need to audit every use caller to all of these routines, to determine which ones need specific handling of error conditions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98608 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16Use SourceManager's Diagnostic object for all file-reading errors,Douglas Gregor
simplifying the SourceManager interfaces somewhat. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98598 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16Give SourceManager a Diagnostic object with which to report errors,Douglas Gregor
and start simplifying the interfaces in SourceManager that can fail. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98594 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15Add some <cstdio> includes to unbreak the buildbotsDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98591 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15Introduce a new BufferResult class to act as the return type ofDouglas Gregor
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()). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98585 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10Fix -Wsign-compare warning reported by clang++.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98170 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-27Robustify SourceManager::getLocation(), so that it returns anDouglas Gregor
end-of-line source location when given a column number beyond the length of the line, or an end-of-file source location when given a line number beyond the length of the file. Previously, we would return an invalid location. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97299 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-12fix a bug in SourceManager::getInstantiationLocSlowCase, whereChris Lattner
we'd add an offset from the spelling location space to the instantiation location, which doesn't make sense and would lead up to the text diagnostics crashing when presented with non-sensical locations. This fixes rdar://7597492, a crash on 255.vortex. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96004 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-06Add a pretty horrible hack to prevent clang from crashing with inconsistent PCHDaniel Dunbar
files. - The issue is that PCH uses a stat cache, which may reference files which have been deleted or moved. In such cases ContentCache::getBuffer was returning 0 but most clients are incapable of dealing with this (i.e., they don't). For the time being, resolve this issue by just making up some invalid file contents and. Eventually we should detect that we are in an inconsistent situation and error out with a nice message that the PCH is out of date. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90699 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03Minor cleanup to the code-completion-point logic suggested by Chris.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90459 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-02Extend the source manager with the ability to override the contents ofDouglas Gregor
files with the contents of an arbitrary memory buffer. Use this new functionality to drastically clean up the way in which we handle file truncation for code-completion: all of the truncation/completion logic is now encapsulated in the preprocessor where it belongs (<rdar://problem/7434737>). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90300 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-02Eliminate the unnecessary FirstFID cache variable from the source manager's ↵Douglas Gregor
ContentCache git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90294 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-01In SourceManager::isBeforeInTranslationUnit, if we are trying to compare two ↵Daniel Dunbar
source locations with no common ancestor in the include stack, determine order by assuming memory buffers preceed files, and then that FileIDs are created in order. The later assumption is patently false, but this was already broken -- this situation is conceptually impossible, my feeling is we should fix SourceManager and friends to make it impossible in practice as well. However, we need to fix PR5662 and perhaps some other things involving memory buffers first. In the short term I'm pretty sure this is reliable. Chris, Argiris, is this going to break anything that wasn't already broken? git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90280 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-01pass the reason for failure up from MemoryBuffer and report itChris Lattner
in diagnostics when we fail to open a file. This allows us to report things like: $ clang test.c -I. test.c:2:10: fatal error: error opening file './foo.h': Permission denied #include "foo.h" ^ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90276 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14Move DISABLE_INLINE to the front of the decl so MSVC can parse it. Patch by ↵Benjamin Kramer
Amine Khaldi! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88797 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03pr5371 likely has nothing to do with this.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85862 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02Add note to FIXME about PR5371.Edward O'Callaghan
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85825 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-22Replace the -code-completion-dump option with Douglas Gregor
-code-completion-at=filename:line:column which performs code completion at the specified location by truncating the file at that position and enabling code completion. This approach makes it possible to run multiple tests from a single test file, and gives a more natural command-line interface. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82571 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Remove tabs, and whitespace cleanups.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81346 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23API changes to match llvm ToT.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79868 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23Replace cerr with errs().Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79854 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-25Fix column checking for SourceManager::getLocation().Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74194 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-23Fix warning when building w/o asserts.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74020 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-23Introduce SourceManager::ísBeforeInTranslationUnit() which can compare 2 ↵Argyrios Kyrtzidis
source locations and determine which one comes before the other, relative to the translation unit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74014 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-23In SourceManager::createFileID missed setting ContentCache's FirstFID in ↵Argyrios Kyrtzidis
another place. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73931 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20Slight modification to column checking inside SourceManager::getLocation().Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73826 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20Introduce SourceManager::getLocation() to get a source location out of a ↵Argyrios Kyrtzidis
"file:line:column" triplet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73823 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-07Remove dead code: 'NewEntry' is not used.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73027 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-18Avoid potential out-of-bounds access in SourceManager::getLineNumber.Daniel Dunbar
- Chris, please see added FIXMEs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72019 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-27Be more careful in our teardown of the PCHReader after deciding toDouglas Gregor
ignore a PCH file. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70251 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-27Load most of the source manager's information lazily from the PCHDouglas Gregor
file. In particular, only eagerly load source location entries for files and for the predefines buffer. Other buffers and macro-instantiation source location entries are loaded lazily. With the Cocoa-prefixed "Hello, World", we only load 815/26555 source location entities. This halves the amount of user time we spend in this "Hello, World" program with -fsyntax-only (down to .007s). This optimization is part 1 of 2 for the source manager. This eliminates most of the user time in loading a PCH file. We still spend too much time initialize File structures (especially in the calls to stat), so we need to either make the loading of source location entries for files lazy or import the stat cache from the PTH implementation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70196 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22Remove the serialization code that predates precompiledDouglas Gregor
headers. Future approaches to (de-)serializing ASTs will be based on the PCH infrastructure. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69828 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13Include the SourceManager's line table in the PCH file. We can nowDouglas Gregor
properly cope with #line directives in PCH files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68963 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13Factor the internals of SourceManager (specially, LineTableInfo) into a ↵Douglas Gregor
separate Internals header. No functionality change git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68960 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-02Resynchronize Decl/VarDecl serialization code with the structuresDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68346 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-11Clear all the linetable state in clear(), fixing problemsChris Lattner
with "clang t.i s.i" where the .i files contain line markers. rdar://6667812 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66619 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-17add an accessor.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64760 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-17add an accessor.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64758 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-15add a new SourceManager::getInstantiationRange helper method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64606 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-15track "just a little more" location information for macro instantiations.Chris Lattner
Now instead of just tracking the expansion history, also track the full range of the macro that got replaced. For object-like macros, this doesn't change anything. For _Pragma and function-like macros, this means we track the locations of the ')'. This is required for PR3579 because apparently GCC uses the line of the ')' of a function-like macro as the location to expand __LINE__ to. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64601 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-14Fix the build on win32.Cedric Venet
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64556 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04Implement handling of file entry/exit notifications from GNUChris Lattner
line markers, including maintenance of the virtual include stack. For something like this: # 42 "bar.c" 1 # 142 "bar2.c" 1 #warning zappa # 92 "bar.c" 2 #warning gonzo # 102 "foo.c" 2 #warning bonkta we now produce these three warnings: #1: In file included from foo.c:3: In file included from bar.c:42: bar2.c:143:2: warning: #warning zappa #warning zappa ^ #2: In file included from foo.c:3: bar.c:92:2: warning: #warning gonzo #warning gonzo ^ #3: foo.c:102:2: warning: #warning bonkta #warning bonkta ^ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63722 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04make getFileCharacteristic linetable aware. line markers that Chris Lattner
play around with the 'is system header' bit now function correctly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63720 91177308-0d34-0410-b5e6-96231b3b80d8
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