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Use a simple diagnostic (file modified) when we detect that a file has 

changed, rather than trying to point out how it changed. The "why"
doesn't matter.

llvm-svn: 98725
This commit is contained in:
Douglas Gregor 2010-03-17 15:30:15 +00:00
parent 2a4b080c5d
commit 6597f59506
3 changed files with 7 additions and 16 deletions
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3
clang/include/clang/Basic/DiagnosticCommonKinds.td
View File

@ -65,9 +65,6 @@ def err_target_invalid_feature : Error<"invalid target feature '%0'">;
// Source manager
def err_cannot_open_file : Error<"cannot open file '%0': %1">, DefaultFatal;
def err_file_size_changed : Error<
"size of file '%0' changed since it was first processed (from %1 to %2)">,
DefaultFatal;
def err_file_modified : Error<
"file '%0' modified since it was first processed">, DefaultFatal;

14
clang/lib/Basic/SourceManager.cpp
View File

@ -92,18 +92,12 @@ const llvm::MemoryBuffer *ContentCache::getBuffer(Diagnostic &Diag,
Diag.Report(diag::err_cannot_open_file)
<< Entry->getName() << ErrorStr;
Buffer.setInt(true);
} else {
} else if (FileInfo.st_size != Entry->getSize() ||
FileInfo.st_mtime != Entry->getModificationTime()) {
// Check that the file's size and modification time is the same as
// in the file entry (which may have come from a stat cache).
if (FileInfo.st_size != Entry->getSize()) {
Diag.Report(diag::err_file_size_changed)
<< Entry->getName() << (unsigned)Entry->getSize()
<< (unsigned)FileInfo.st_size;
Buffer.setInt(true);
} else if (FileInfo.st_mtime != Entry->getModificationTime()) {
Diag.Report(diag::err_file_modified) << Entry->getName();
Buffer.setInt(true);
}
Diag.Report(diag::err_file_modified) << Entry->getName();
Buffer.setInt(true);
}
}

6
clang/test/PCH/changed-files.c
View File

@ -6,17 +6,17 @@ const char *s2 = m0;
// RUN: %clang_cc1 -emit-pch -o %t.h.pch %t.h
// RUN: echo '' > %t.h
// RUN: not %clang_cc1 -include-pch %t.h.pch %s 2> %t.stderr
// RUN: grep "size of file" %t.stderr
// RUN: grep "modified" %t.stderr
// RUN: echo '#define m0 000' > %t.h
// RUN: %clang_cc1 -emit-pch -o %t.h.pch %t.h
// RUN: echo '' > %t.h
// RUN: not %clang_cc1 -include-pch %t.h.pch %s 2> %t.stderr
// RUN: grep "size of file" %t.stderr
// RUN: grep "modified" %t.stderr
// RUN: echo '#define m0 000' > %t.h
// RUN: echo "#define m1 'abcd'" >> %t.h
// RUN: %clang_cc1 -emit-pch -o %t.h.pch %t.h
// RUN: echo '' > %t.h
// RUN: not %clang_cc1 -include-pch %t.h.pch %s 2> %t.stderr
// RUN: grep "size of file" %t.stderr
// RUN: grep "modified" %t.stderr