Added some missing declaration to codemirror (#14268)

codemirror/codemirror-showhint.d.ts

@@ -16,7 +16,7 @@ declare module "codemirror" {
     and return a {list, from, to} object, where list is an array of strings or objects (the completions), and
     from and to give the start and end of the token that is being completed as {line, ch} objects. An optional
     selectedHint property (an integer) can be added to the completion object to control the initially selected hint. */
-    function showHint(cm: CodeMirror.Doc, hinter?: (doc: CodeMirror.Doc) => Hints, options?: ShowHintOptions): void;
+    function showHint(cm: CodeMirror.Doc, hinter?: HintFunction, options?: ShowHintOptions): void;
 
     interface Hints {
         from: Position;
@@ -47,9 +47,18 @@ declare module "codemirror" {
         showHint: (options: ShowHintOptions) => void;
     }
 
+    interface HintFunction {
+        (doc: CodeMirror.Doc): Hints;
+    }
+
+    interface AsyncHintFunction {
+        (doc: CodeMirror.Doc, callback: (hints: Hints) => any): any;
+        async?: boolean;
+    }
+
     interface ShowHintOptions {
         completeSingle: boolean;
-        hint: (doc: CodeMirror.Doc) => Hints;
+        hint: HintFunction | AsyncHintFunction;
     }
 
     /** The Handle used to interact with the autocomplete dialog box.*/

codemirror/index.d.ts

@@ -118,6 +118,8 @@ declare namespace CodeMirror {
         The other arguments and the returned value have the same interpretation as they have in findPosH. */
         findPosV(start: CodeMirror.Position, amount: number, unit: string): { line: number; ch: number; hitSide?: boolean; };
 
+        /** Returns the start and end of the 'word' (the stretch of letters, whitespace, or punctuation) at the given position. */
+        findWordAt(pos: CodeMirror.Position): CodeMirror.Range;
 
         /** Change the configuration of the editor. option should the name of an option, and value should be a valid value for that option. */
         setOption(option: string, value: any): void;
@@ -672,9 +674,11 @@ declare namespace CodeMirror {
         (line: number, ch?: number): Position;
     }
 
-    interface Range{
-        from: CodeMirror.Position;
-        to: CodeMirror.Position;
+    interface Range {
+        anchor: CodeMirror.Position;
+        head: CodeMirror.Position;
+        from(): CodeMirror.Position;
+        to(): CodeMirror.Position;
     }
 
     interface Position {

codemirror/test/index.ts

@@ -7,6 +7,12 @@ var myCodeMirror2: CodeMirror.Editor = CodeMirror(document.body, {
     mode: "javascript"
 });
 
+var range = myCodeMirror2.findWordAt(CodeMirror.Pos(0, 2));
+var anchor = range.anchor;
+var head = range.head;
+var from = range.from();
+var to = range.to();
+
 var myTextArea: HTMLTextAreaElement;
 var myCodeMirror3: CodeMirror.Editor = CodeMirror(function (elt) {
     myTextArea.parentNode.replaceChild(elt, myTextArea);

codemirror/test/showhint.ts

@@ -31,3 +31,17 @@ CodeMirror.showHint(doc, function (cm) {
         to: pos
     };
 });
+var asyncHintFunc : CodeMirror.AsyncHintFunction =
+    (doc: CodeMirror.Doc, callback: (hints: CodeMirror.Hints) => any) => {
+        callback({
+            from: pos,
+            list: ["one", "two"],
+            to: pos
+        });
+    };
+asyncHintFunc.async = true;
+
+doc.showHint({
+    completeSingle: false,
+    hint: asyncHintFunc
+})