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jucipp
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Added workaround for libclang crash when looking for definitions of completion items

pipelines/235045657
eidheim 5 years ago
parent
0102ba90c9
commit
e21dd3681d
1 changed files with 27 additions and 29 deletions
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  1. 56
      src/source_clang.cpp

56
src/source_clang.cpp
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@ -1335,39 +1335,37 @@ Source::ClangViewRefactor::ClangViewRefactor(const boost::filesystem::path &file
auto implementation_locations = [this](const Identifier &identifier) {
std::vector<Offset> offsets;
if(identifier) {
wait_parsing();
//First, look for a definition cursor that is equal
auto identifier_usr = identifier.cursor.get_usr();
for(auto &view : views) {
if(auto clang_view = dynamic_cast<Source::ClangView *>(view)) {
for(auto &token : *clang_view->clang_tokens) {
auto cursor = token.get_cursor();
auto cursor_kind = cursor.get_kind();
if((cursor_kind == clangmm::Cursor::Kind::FunctionDecl || cursor_kind == clangmm::Cursor::Kind::CXXMethod ||
cursor_kind == clangmm::Cursor::Kind::Constructor || cursor_kind == clangmm::Cursor::Kind::Destructor ||
cursor_kind == clangmm::Cursor::Kind::FunctionTemplate || cursor_kind == clangmm::Cursor::Kind::ConversionFunction) &&
token.is_identifier()) {
auto token_spelling = token.get_spelling();
if(identifier.kind == cursor.get_kind() && identifier.spelling == token_spelling && identifier_usr == cursor.get_usr()) {
if(clang_isCursorDefinition(cursor.cx_cursor)) {
Offset offset;
auto location = cursor.get_source_location();
auto clang_offset = location.get_offset();
offset.file_path = location.get_path();
offset.line = clang_offset.line - 1;
offset.index = clang_offset.index - 1;
offsets.emplace_back(offset);
}
if(parsed) {
wait_parsing(); // Wait for other views to finish parsing
// First, look for a definition cursor that is equal
auto identifier_usr = identifier.cursor.get_usr();
for(auto &view : views) {
if(auto clang_view = dynamic_cast<Source::ClangView *>(view)) {
for(auto &token : *clang_view->clang_tokens) {
auto cursor = token.get_cursor();
auto cursor_kind = cursor.get_kind();
if((cursor_kind == clangmm::Cursor::Kind::FunctionDecl || cursor_kind == clangmm::Cursor::Kind::CXXMethod ||
cursor_kind == clangmm::Cursor::Kind::Constructor || cursor_kind == clangmm::Cursor::Kind::Destructor ||
cursor_kind == clangmm::Cursor::Kind::FunctionTemplate || cursor_kind == clangmm::Cursor::Kind::ConversionFunction) &&
identifier.kind == cursor_kind && token.is_identifier() && clang_isCursorDefinition(cursor.cx_cursor) &&
identifier.spelling == token.get_spelling() && identifier_usr == cursor.get_usr()) {
Offset offset;
auto location = cursor.get_source_location();
auto clang_offset = location.get_offset();
offset.file_path = location.get_path();
offset.line = clang_offset.line - 1;
offset.index = clang_offset.index - 1;
offsets.emplace_back(offset);
}
}
}
}
if(!offsets.empty())
return offsets;
}
if(!offsets.empty())
return offsets;
//If no implementation was found, try using clang_getCursorDefinition
// If no implementation was found, try using clang_getCursorDefinition
auto definition = identifier.cursor.get_definition();
if(definition) {
auto location = definition.get_source_location();
@ -1380,7 +1378,7 @@ Source::ClangViewRefactor::ClangViewRefactor(const boost::filesystem::path &file
return offsets;
}
//If no implementation was found, use declaration if it is a function template
// If no implementation was found, use declaration if it is a function template
auto canonical = identifier.cursor.get_canonical();
auto cursor = clang_tu->get_cursor(canonical.get_source_location());
if(cursor && cursor.get_kind() == clangmm::Cursor::Kind::FunctionTemplate) {
@ -1394,7 +1392,7 @@ Source::ClangViewRefactor::ClangViewRefactor(const boost::filesystem::path &file
return offsets;
}
//If no implementation was found, try using Ctags
// If no implementation was found, try using Ctags
auto name = identifier.cursor.get_spelling();
auto parent = identifier.cursor.get_semantic_parent();
while(parent && parent.get_kind() != clangmm::Cursor::Kind::TranslationUnit) {

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