microsoft/TypeScript
1
0
Fork 0
mirror of https://github.com/microsoft/TypeScript.git synced 2026-06-11 20:37:46 -05:00
Code Issues Packages Projects Releases 212 Wiki Activity

Remove host cache uses in syntactic features

Browse Source
This commit is contained in:
Mohamed Hegazy
2015-02-09 10:48:59 -08:00
parent 6453811d96
commit 1d8fab8168
1 changed files with 14 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

47
src/services/services.ts
View File

@@ -1548,65 +1548,46 @@ module ts {
}
class SyntaxTreeCache {
private hostCache: HostCache;
// For our syntactic only features, we also keep a cache of the syntax tree for the
// currently edited file.
private currentFileName: string = "";
private currentFileVersion: string = null;
private currentSourceFile: SourceFile = null;
private currentFileName: string;
private currentFileVersion: string;
private currentFileScriptSnapshot: IScriptSnapshot;
private currentSourceFile: SourceFile;
constructor(private host: LanguageServiceHost) {
}
private log(message: string) {
if (this.host.log) {
this.host.log(message);
public getCurrentSourceFile(fileName: string): SourceFile {
var scriptSnapshot = this.host.getScriptSnapshot(fileName);
if (!scriptSnapshot) {
// The host does not know about this file.
throw new Error("Could not find file: '" + fileName + "'.");
}
}
private initialize(fileName: string) {
// ensure that both source file and syntax tree are either initialized or not initialized
var start = new Date().getTime();
this.hostCache = new HostCache(this.host);
this.log("SyntaxTreeCache.Initialize: new HostCache: " + (new Date().getTime() - start));
var version = this.hostCache.getVersion(fileName);
var version = this.host.getScriptVersion(fileName);
var sourceFile: SourceFile;
if (this.currentFileName !== fileName) {
var scriptSnapshot = this.hostCache.getScriptSnapshot(fileName);
var start = new Date().getTime();
// This is a new file, just parse it
sourceFile = createLanguageServiceSourceFile(fileName, scriptSnapshot, ScriptTarget.Latest, version, /*setNodeParents:*/ true);
this.log("SyntaxTreeCache.Initialize: createSourceFile: " + (new Date().getTime() - start));
}
else if (this.currentFileVersion !== version) {
var scriptSnapshot = this.hostCache.getScriptSnapshot(fileName);
var editRange = this.hostCache.getChangeRange(fileName, this.currentFileVersion, this.currentSourceFile.scriptSnapshot);
var start = new Date().getTime();
// This is the same file, just a newer version. Incrementally parse the file.
var editRange = scriptSnapshot.getChangeRange(this.currentFileScriptSnapshot);
sourceFile = updateLanguageServiceSourceFile(this.currentSourceFile, scriptSnapshot, version, editRange);
this.log("SyntaxTreeCache.Initialize: updateSourceFile: " + (new Date().getTime() - start));
}
if (sourceFile) {
// All done, ensure state is up to date
this.currentFileVersion = version;
this.currentFileName = fileName;
this.currentFileScriptSnapshot = scriptSnapshot;
this.currentSourceFile = sourceFile;
}
}
public getCurrentSourceFile(fileName: string): SourceFile {
this.initialize(fileName);
return this.currentSourceFile;
}
public getCurrentScriptSnapshot(fileName: string): IScriptSnapshot {
return this.getCurrentSourceFile(fileName).scriptSnapshot;
}
}
function setSourceFileFields(sourceFile: SourceFile, scriptSnapshot: IScriptSnapshot, version: string) {