Fold newline logic into getNewLineOrDefaultFromHost

Author: amcasey

src/services/codefixes/disableJsDiagnostics.ts

@@ -15,7 +15,7 @@ namespace ts.codefix {
                 return undefined;
             }
 
-            const newLineCharacter = textChanges.getNewLineFromContext(context);
+            const newLineCharacter = getNewLineOrDefaultFromHost(context.host, context.formatContext.options);
 
             return [{
                 description: getLocaleSpecificMessage(Diagnostics.Ignore_this_error_message),
@@ -38,7 +38,7 @@ namespace ts.codefix {
         fixIds: [fixId], // No point applying as a group, doing it once will fix all errors
         getAllCodeActions: context => codeFixAllWithTextChanges(context, errorCodes, (changes, err) => {
             if (err.start !== undefined) {
-                changes.push(getIgnoreCommentLocationForLocation(err.file!, err.start, textChanges.getNewLineFromContext(context)));
+                changes.push(getIgnoreCommentLocationForLocation(err.file!, err.start, getNewLineOrDefaultFromHost(context.host, context.formatContext.options)));
             }
         }),
     });

src/services/textChanges.ts

@@ -191,11 +191,6 @@ namespace ts.textChanges {
         formatContext: ts.formatting.FormatContext;
     }
 
-    export function getNewLineFromContext(context: TextChangesContext) {
-        const formatSettings = context.formatContext.options;
-        return (formatSettings && formatSettings.newLineCharacter) || getNewLineOrDefaultFromHost(context.host);
-    }
-
     export class ChangeTracker {
         private readonly changes: Change[] = [];
         private readonly newLineCharacter: string;
@@ -204,7 +199,7 @@ namespace ts.textChanges {
         private readonly nodesInsertedAtClassStarts = createMap<{ sourceFile: SourceFile, cls: ClassLikeDeclaration, members: ClassElement[] }>();
 
         public static fromContext(context: TextChangesContext): ChangeTracker {
-            return new ChangeTracker(getNewLineFromContext(context) === "\n" ? NewLineKind.LineFeed : NewLineKind.CarriageReturnLineFeed, context.formatContext);
+            return new ChangeTracker(getNewLineOrDefaultFromHost(context.host, context.formatContext.options) === "\n" ? NewLineKind.LineFeed : NewLineKind.CarriageReturnLineFeed, context.formatContext);
         }
 
         public static with(context: TextChangesContext, cb: (tracker: ChangeTracker) => void): FileTextChanges[] {

src/services/utilities.ts

@@ -1259,8 +1259,10 @@ namespace ts {
     /**
      * The default is CRLF.
      */
-    export function getNewLineOrDefaultFromHost(host: LanguageServiceHost | LanguageServiceShimHost) {
-        return host.getNewLine ? host.getNewLine() : carriageReturnLineFeed;
+    export function getNewLineOrDefaultFromHost(host: LanguageServiceHost | LanguageServiceShimHost, formatSettings?: FormatCodeSettings) {
+        return (formatSettings && formatSettings.newLineCharacter) ||
+            (host.getNewLine && host.getNewLine()) ||
+            carriageReturnLineFeed;
     }
 
     export function lineBreakPart() {