Complete multi-segment expressions

actions-languageservice/src/complete.expressions.test.ts

@@ -262,6 +262,13 @@ jobs:
       expect(result.map(x => x.label)).toEqual(["event"]);
     });
 
+    it("auto-complete complex partial", async () => {
+      const input = 'run-name: "run ${{ github.ev| }} run"';
+      const result = await complete(...getPositionFromCursor(input), undefined, contextProviderConfig);
+
+      expect(result.map(x => x.label)).toEqual(["event"]);
+    });
+
     it("using default context provider", async () => {
       const input =
         "on: push\njobs:\n  build:\n    runs-on: ubuntu-latest\n    environment:\n      url: ${{ runner.| }}\n    steps:\n      - run: echo";

actions-languageservice/src/complete.ts

@@ -205,20 +205,18 @@ function getExpressionCompletionItems(
   context: DescriptionDictionary,
   pos: Position
 ): CompletionItem[] {
-  let expressionInput = "";
   let currentInput = "";
-  let relCharPos: number = 0;
 
   if (isBasicExpression(token)) {
-    expressionInput = currentInput = token.expression;
-    relCharPos = getRelCharPos(token.range!, expressionInput, pos);
+    currentInput = token.source || token.expression;
   } else {
     const stringToken = token.assertString("Expected string token for expression completion");
     currentInput = stringToken.source || stringToken.value;
-    relCharPos = getRelCharPos(stringToken.range!, currentInput, pos);
-    expressionInput = (getExpressionInput(currentInput, relCharPos) || "").trim();
   }
 
+  const relCharPos = getRelCharPos(token.range!, currentInput, pos);
+  const expressionInput = (getExpressionInput(currentInput, relCharPos) || "").trim();
+
   try {
     return completeExpression(expressionInput, context, [], validatorFunctions).map(item =>
       mapExpressionCompletionItem(item, currentInput[relCharPos])

actions-languageservice/src/context-providers/matrix.test.ts

@@ -45,7 +45,7 @@ function stringToToken(value: string) {
 }
 
 function expressionToToken(expr: string) {
-  return new BasicExpressionToken(undefined, undefined, expr, undefined, undefined);
+  return new BasicExpressionToken(undefined, undefined, expr, undefined, undefined, expr);
 }
 
 function contextFromStrategy(strategy?: TemplateToken) {