Merge pull request #163 from cartant/issue-161-use-current

Reused currently parsed source files

Author: basarat

lib/Host.js

@@ -47,17 +47,22 @@ module.exports = function (ts) {
 		}
 
 		var file;
+		var current = this.files[normalized];
 		var previous = this.previousFiles[normalized];
 		var version;
 
-		if (previous && previous.contents === text) {
+		if (current && current.contents === text) {
+			file = current.ts;
+			version = current.version;
+			log('Reused current file %s (version %d)', normalized, version);
+		} else if (previous && previous.contents === text) {
 			file = previous.ts;
 			version = previous.version;
-			log('Reused file %s (version %s)', normalized, version);
+			log('Reused previous file %s (version %d)', normalized, version);
 		} else {
 			file = ts.createSourceFile(filename, text, this.languageVersion, true);
 			version = this.version;
-			log('New version of source file %s (version %s)', normalized, version);
+			log('New version of source file %s (version %d)', normalized, version);
 		}
 
 		this.files[normalized] = {