partially move getIndentationToken into new function

Author: saschanaz

src/services/formatting/formatting.ts

@@ -389,7 +389,7 @@ namespace ts.formatting {
 
             let indentation = inheritedIndentation;
             if (indentation === Constants.Unknown) {
-                if (isIndentPreventedChildNode(parent.kind, node.kind)) {
+                if (isIndentPreventedCoreComponent(node.kind)) {
                     indentation = parentDynamicIndentation.getIndentation();
                 }
                 else if (isSomeBlock(node.kind)) {
@@ -479,21 +479,12 @@ namespace ts.formatting {
                             return indentation;
                         }
                     }
-                    switch (kind) {
-                        // open and close brace, 'else' and 'while' (in do statement) tokens has indentation of the parent
-                        case SyntaxKind.OpenBraceToken:
-                        case SyntaxKind.CloseBraceToken:
-                        case SyntaxKind.OpenBracketToken:
-                        case SyntaxKind.CloseBracketToken:
-                        case SyntaxKind.OpenParenToken:
-                        case SyntaxKind.CloseParenToken:
-                        case SyntaxKind.ElseKeyword:
-                        case SyntaxKind.WhileKeyword:
-                        case SyntaxKind.AtToken:
-                            return indentation;
-                        default:
-                            // if token line equals to the line of containing node (this is a first token in the node) - use node indentation
-                            return nodeStartLine !== line ? indentation + delta : indentation;
+                    if (isIndentPreventedCoreComponent(kind)) {
+                        return indentation;
+                    }
+                    else {
+                        // if token line equals to the line of containing node (this is a first token in the node) - use node indentation
+                        return nodeStartLine !== line ? indentation + delta : indentation;
                     }
                 },
                 getIndentation: () => indentation,
@@ -1021,11 +1012,20 @@ namespace ts.formatting {
         return false;
     }
 
-    function isIndentPreventedChildNode(parent: SyntaxKind, child: SyntaxKind) {
-        switch (parent) {
-            case SyntaxKind.JsxElement: {
-                return child === SyntaxKind.JsxClosingElement;
-            }
+    function isIndentPreventedCoreComponent(child: SyntaxKind) {
+        switch (child) {
+            // open and close brace, 'else' and 'while' (in do statement) tokens has indentation of the parent
+            case SyntaxKind.OpenBraceToken:
+            case SyntaxKind.CloseBraceToken:
+            case SyntaxKind.OpenBracketToken:
+            case SyntaxKind.CloseBracketToken:
+            case SyntaxKind.OpenParenToken:
+            case SyntaxKind.CloseParenToken:
+            case SyntaxKind.ElseKeyword:
+            case SyntaxKind.WhileKeyword:
+            case SyntaxKind.AtToken:
+            case SyntaxKind.JsxClosingElement:
+                return true;
         }
     }