added missing check if file is specified

vladima · vladima · commit 4720c3592df7 · 2015-11-11T16:51:29.000-08:00
diff --git a/src/services/services.ts b/src/services/services.ts
@@ -2847,8 +2847,11 @@ namespace ts {
             }
 
             function sourceFileUpToDate(sourceFile: SourceFile): boolean {
+                if (!sourceFile) {
+                    return false;
+                }
                 let path = sourceFile.path || toPath(sourceFile.fileName, currentDirectory, getCanonicalFileName);
-                return sourceFile && sourceFile.version === hostCache.getVersion(path);
+                return sourceFile.version === hostCache.getVersion(path);
             }
 
             function programUpToDate(): boolean {

Original file line number	Diff line number	Diff line change
`@@ -2847,8 +2847,11 @@ namespace ts {`
`2847`	`2847`	`}`
`2848`	`2848`
`2849`	`2849`	`function sourceFileUpToDate(sourceFile: SourceFile): boolean {`
	`2850`	`+ if (!sourceFile) {`
	`2851`	`+ return false;`
	`2852`	`+ }`
`2850`	`2853`	`let path = sourceFile.path \|\| toPath(sourceFile.fileName, currentDirectory, getCanonicalFileName);`
`2851`		`- return sourceFile && sourceFile.version === hostCache.getVersion(path);`
	`2854`	`+ return sourceFile.version === hostCache.getVersion(path);`
`2852`	`2855`	`}`
`2853`	`2856`
`2854`	`2857`	`function programUpToDate(): boolean {`