https://llvm.org/bugs/show_bug.cgi?id=25741
Bug ID: 25741
Summary: libclang/Windows: preamble file is not deleted on
clang_disposeTranslationUnit()
Product: clang
Version: trunk
Hardware: PC
OS: Windows 2000
Status: NEW
Severity: normal
Priority: P
Component: libclang
Assignee: unassignedclangb...@nondot.org
Reporter: nikolai.kos...@theqtcompany.com
CC: kli...@google.com, llvm-bugs@lists.llvm.org
Classification: Unclassified
Generated preamble files are deleted on Linux, but not on Windows. As a result,
the preamble files accumulate in %TEMP% until the disk is full. Preamble files
up to 20MB are not unusual for some *.cpp files.
Reproducible with libclang 3.6.2 and libclang from trunk (3.8, r253269).
Used test code (pass in a suitable file):
#include <clang-c/Index.h>
#include <cstdlib>
#include <cstdio>
#include <vector>
int main(int argc, char *argv[])
{
if (argc != 2) {
fprintf(stderr, "Usage: $0 <file>\n");
return 0;
}
const char *filePath = argv[1];
// Construct parse arguments
std::vector<const char *> arguments;
arguments.push_back(filePath);
// Parse
CXIndex index = clang_createIndex(0, /*displayDiagnostics*/ 1);
const unsigned tuOptions = CXTranslationUnit_PrecompiledPreamble;
CXTranslationUnit tu = clang_parseTranslationUnit(index,
NULL,
arguments.data(),
arguments.size(),
NULL,
0,
tuOptions);
// Re-parse in order to create the preamble file
clang_reparseTranslationUnit(tu, NULL, 0, 0);
// Dispose the TU + index
clang_disposeTranslationUnit(tu);
clang_disposeIndex(index);
return 0;
}
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