TypeError with promise-function-async

[RomkeVdMeulen]

Bug Report

• TSLint version: 4.3.1
• TypeScript version: 2.1.5
• Running TSLint via: Node.js API

TypeScript code being linted

export class User {

	id: number;
	email: string;
	permissions: string[];

	constructor(copy?: Object) {
		if (copy) {
			Object.assign(this, copy);
		}
	}

	hasPermission(permission: string) {
		return this.permissions.includes(permission);
	}
}

Actual behavior

TypeError: Cannot read property 'flags' of undefined
    at getTypeOfSymbol (node_modules/typescript/lib/typescript.js:27568:23)
    at Object.getTypeOfNode [as getTypeAtLocation] (node_modules/typescript/lib/typescript.js:42325:24)
    at PromiseAsyncWalker.handleDeclaration (node_modules/tslint/lib/rules/promiseFunctionAsyncRule.js:73:28)
    at PromiseAsyncWalker.visitMethodDeclaration (node_modules/tslint/lib/rules/promiseFunctionAsyncRule.js:68:14)
    at PromiseAsyncWalker.SyntaxWalker.visitNode (node_modules/tslint/lib/language/walker/syntaxWalker.js:409:22)
    at node_modules/tslint/lib/language/walker/syntaxWalker.js:517:63
    at visitEachNode (node_modules/typescript/lib/typescript.js:13882:30)
    at Object.forEachChild (node_modules/typescript/lib/typescript.js:14125:21)
    at PromiseAsyncWalker.SyntaxWalker.walkChildren (node_modules/tslint/lib/language/walker/syntaxWalker.js:517:12)
    at PromiseAsyncWalker.SyntaxWalker.visitClassDeclaration (node_modules/tslint/lib/language/walker/syntaxWalker.js:62:14)
    at PromiseAsyncWalker.SyntaxWalker.visitNode (node_modules/tslint/lib/language/walker/syntaxWalker.js:304:22)
    at node_modules/tslint/lib/language/walker/syntaxWalker.js:517:63
    at visitEachNode (node_modules/typescript/lib/typescript.js:13882:30)
    at Object.forEachChild (node_modules/typescript/lib/typescript.js:14053:24)
    at PromiseAsyncWalker.SyntaxWalker.walkChildren (node_modules/tslint/lib/language/walker/syntaxWalker.js:517:12)
    at PromiseAsyncWalker.SyntaxWalker.visitSourceFile (node_modules/tslint/lib/language/walker/syntaxWalker.js:218:14)
    at PromiseAsyncWalker.SyntaxWalker.visitNode (node_modules/tslint/lib/language/walker/syntaxWalker.js:463:22)
    at PromiseAsyncWalker.SyntaxWalker.walk (node_modules/tslint/lib/language/walker/syntaxWalker.js:23:14)
    at Rule.AbstractRule.applyWithWalker (node_modules/tslint/lib/language/rule/abstractRule.js:46:16)
    at Rule.applyWithProgram (node_modules/tslint/lib/rules/promiseFunctionAsyncRule.js:31:21)
    at Linter.applyRule (node_modules/tslint/lib/linter.js:140:33)
    at Linter.lint (node_modules/tslint/lib/linter.js:109:41)

Expected behavior

No crash

[RomkeVdMeulen]

Looks like a duplicate of #1641 or #1606 but I'm not using the "no-unused-variable" rule so the suggested workaround won't work for me.

[andy-hanson]

I can't reproduce this. Globally installed tslint@4.3.1 and typescript@2.1.5. What tsconfig.json do you have?

[RomkeVdMeulen]

Haven't seen this recur for months, not sure what ever happened to the problem. I'll just close this.