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Implement diagnostic range as per clang_formatDiagnostic

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This commit is contained in:
Fangrui Song 2017-12-10 18:13:25 -08:00 committed by Jacob Dufault
parent 177e4cd224
commit 86cc50e27f
1 changed files with 31 additions and 13 deletions
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44
src/clang_utils.cc
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@ -20,30 +20,46 @@ lsRange GetLsRangeForFixIt(const CXSourceRange& range) {
} // namespace
// See clang_formatDiagnostic
optional<lsDiagnostic> BuildAndDisposeDiagnostic(CXDiagnostic diagnostic,
const std::string& path) {
// Get diagnostic location.
CXFile file;
unsigned int line, column;
clang_getSpellingLocation(clang_getDiagnosticLocation(diagnostic), &file,
&line, &column, nullptr);
unsigned start_line, start_column;
clang_getSpellingLocation(clang_getDiagnosticLocation(diagnostic),
&file, &start_line, &start_column, nullptr);
// Only report diagnostics in the same file. Using
// clang_Location_isInSystemHeader causes crashes for some reason.
if (path != FileName(file)) {
if (file && path != FileName(file)) {
clang_disposeDiagnostic(diagnostic);
return nullopt;
}
unsigned end_line = start_line, end_column = start_column,
num_ranges = clang_getDiagnosticNumRanges(diagnostic);
for (unsigned i = 0; i < num_ranges; i++) {
CXFile file0, file1;
unsigned line0, column0, line1, column1;
CXSourceRange range = clang_getDiagnosticRange(diagnostic, i);
clang_getSpellingLocation(clang_getRangeStart(range), &file0, &line0,
&column0, nullptr);
clang_getSpellingLocation(clang_getRangeEnd(range), &file1, &line1,
&column1, nullptr);
if (file0 != file1 || file0 != file)
continue;
if (line0 < start_line || (line0 == start_line && column0 < start_column)) {
start_line = line0;
start_column = column0;
}
if (line1 > end_line || (line1 == end_line && column1 > end_column)) {
end_line = line1;
end_column = column1;
}
}
// Build diagnostic.
lsDiagnostic ls_diagnostic;
// TODO: consider using clang_getDiagnosticRange
// TODO: ls_diagnostic.range is lsRange, we have Range. We should only be
// storing Range types when inside the indexer so that index <-> buffer
// remapping logic is applied.
ls_diagnostic.range =
lsRange(lsPosition(line - 1, column), lsPosition(line - 1, column));
ls_diagnostic.range = lsRange(lsPosition(start_line - 1, start_column - 1),
lsPosition(end_line - 1, end_column - 1));
ls_diagnostic.message = ToString(clang_getDiagnosticSpelling(diagnostic));
@ -57,6 +73,8 @@ optional<lsDiagnostic> BuildAndDisposeDiagnostic(CXDiagnostic diagnostic,
switch (clang_getDiagnosticSeverity(diagnostic)) {
case CXDiagnostic_Ignored:
// llvm_unreachable
break;
case CXDiagnostic_Note:
ls_diagnostic.severity = lsDiagnosticSeverity::Information;
break;