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FileNeedsParse is a separate function

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This commit is contained in:
Jacob Dufault 2018-01-17 21:53:03 -08:00
parent 4c1ee74b27
commit bc2521382d
1 changed files with 44 additions and 35 deletions
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79
src/import_pipeline.cc
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@ -83,6 +83,42 @@ struct ActiveThread {
enum class FileParseQuery { NeedsParse, DoesNotNeedParse, NoSuchFile }; enum class FileParseQuery { NeedsParse, DoesNotNeedParse, NoSuchFile };
// Checks if |path| needs to be reparsed. This will modify cached state
// such that calling this function twice with the same path may return true
// the first time but will return false the second.
FileParseQuery FileNeedsParse(bool is_interactive,
TimestampManager* timestamp_manager,
ImportManager* import_manager,
ICacheManager* cache_manager,
FileConsumerSharedState* file_consumer_shared,
const std::string& path,
bool is_dependency) {
// If the file is a dependency but another file as already imported it,
// don't bother.
if (!is_interactive && is_dependency &&
!import_manager->TryMarkDependencyImported(path)) {
return FileParseQuery::DoesNotNeedParse;
}
optional<int64_t> modification_timestamp = GetLastModificationTime(path);
// Cannot find file.
if (!modification_timestamp)
return FileParseQuery::NoSuchFile;
optional<int64_t> last_cached_modification =
timestamp_manager->GetLastCachedModificationTime(cache_manager, path);
// File has been changed.
if (!last_cached_modification ||
modification_timestamp != *last_cached_modification) {
file_consumer_shared->Reset(path);
return FileParseQuery::NeedsParse;
}
// File has not changed, do not parse it.
return FileParseQuery::DoesNotNeedParse;
};
std::vector<Index_DoIdMap> ParseFile( std::vector<Index_DoIdMap> ParseFile(
Config* config, Config* config,
@ -95,7 +131,6 @@ std::vector<Index_DoIdMap> ParseFile(
bool is_interactive, bool is_interactive,
const Project::Entry& entry, const Project::Entry& entry,
const std::string& entry_contents) { const std::string& entry_contents) {
FileContents contents(entry.filename, entry_contents); FileContents contents(entry.filename, entry_contents);
// If the file is inferred, we may not actually be able to parse that file // If the file is inferred, we may not actually be able to parse that file
@ -118,39 +153,10 @@ std::vector<Index_DoIdMap> ParseFile(
// interactive (ie, requested by a file save), skip parsing and just load // interactive (ie, requested by a file save), skip parsing and just load
// from cache. // from cache.
// Checks if |path| needs to be reparsed. This will modify cached state
// such that calling this function twice with the same path may return true
// the first time but will return false the second.
auto file_needs_parse = [&](const std::string& path, bool is_dependency) {
// If the file is a dependency but another file as already imported it,
// don't bother.
if (!is_interactive && is_dependency &&
!import_manager->TryMarkDependencyImported(path)) {
return FileParseQuery::DoesNotNeedParse;
}
optional<int64_t> modification_timestamp = GetLastModificationTime(path);
// Cannot find file.
if (!modification_timestamp)
return FileParseQuery::NoSuchFile;
optional<int64_t> last_cached_modification =
timestamp_manager->GetLastCachedModificationTime(cache_manager, path);
// File has been changed.
if (!last_cached_modification ||
modification_timestamp != *last_cached_modification) {
file_consumer_shared->Reset(path);
return FileParseQuery::NeedsParse;
}
// File has not changed, do not parse it.
return FileParseQuery::DoesNotNeedParse;
};
// Check timestamps and update |file_consumer_shared|. // Check timestamps and update |file_consumer_shared|.
FileParseQuery path_state = file_needs_parse(path, false /*is_dependency*/); FileParseQuery path_state = FileNeedsParse(
is_interactive, timestamp_manager, import_manager, cache_manager,
file_consumer_shared, path, false /*is_dependency*/);
// Target file does not exist on disk, do not emit any indexes. // Target file does not exist on disk, do not emit any indexes.
// TODO: Dependencies should be reassigned to other files. We can do this by // TODO: Dependencies should be reassigned to other files. We can do this by
@ -166,7 +172,9 @@ std::vector<Index_DoIdMap> ParseFile(
assert(!dependency.empty()); assert(!dependency.empty());
// note: Use != as there are multiple failure results for FileParseQuery. // note: Use != as there are multiple failure results for FileParseQuery.
if (file_needs_parse(dependency, true /*is_dependency*/) != if (FileNeedsParse(is_interactive, timestamp_manager, import_manager,
cache_manager, file_consumer_shared, dependency,
true /*is_dependency*/) !=
FileParseQuery::DoesNotNeedParse) { FileParseQuery::DoesNotNeedParse) {
LOG_S(INFO) << "Timestamp has changed for " << dependency << " (via " LOG_S(INFO) << "Timestamp has changed for " << dependency << " (via "
<< previous_index->path << ")"; << previous_index->path << ")";
@ -609,7 +617,8 @@ bool QueryDb_ImportMain(Config* config,
WorkingFile* working_file = WorkingFile* working_file =
working_files->GetFileByFilename(updated_file.path); working_files->GetFileByFilename(updated_file.path);
if (working_file) { if (working_file) {
QueryFileId file_id = db->usr_to_file[LowerPathIfCaseInsensitive(working_file->filename)]; QueryFileId file_id =
db->usr_to_file[LowerPathIfCaseInsensitive(working_file->filename)];
QueryFile* file = &db->files[file_id.id]; QueryFile* file = &db->files[file_id.id];
EmitSemanticHighlighting(db, semantic_cache, working_file, file); EmitSemanticHighlighting(db, semantic_cache, working_file, file);
} }