Update tuple rule for new AST

microsoft · May 28, 2020 · 034d77e · 034d77e
1 parent 452bb3c
commit 034d77e
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Showing 2 changed files with 1 addition and 21 deletions.
diff --git a/.vscode/launch.json b/.vscode/launch.json
diff --git a/src/rules/noSingleElementTupleTypeRule.ts b/src/rules/noSingleElementTupleTypeRule.ts
@@ -21,7 +21,7 @@ export class Rule extends Lint.Rules.AbstractRule {
 function walk(ctx: Lint.WalkContext<void>): void {
     const { sourceFile } = ctx;
     sourceFile.forEachChild(function cb(node) {
-        if (ts.isTupleTypeNode(node) && node.elementTypes.length === 1) {
+        if (ts.isTupleTypeNode(node) && (node.elements ?? (node as any).elementTypes).length === 1) {
             ctx.addFailureAtNode(node, failure(
                 Rule.metadata.ruleName,
                 "Type [T] is a single-element tuple type. You probably meant T[]."));