Method parseWhileStatement

src/parser.ts:2174–2195

()

    // https://tc39.github.io/ecma262/#sec-while-statement

    parseWhileStatement(): Node.WhileStatement {
        const node = this.createNode();
        let body;

        this.expectKeyword('while');
        this.expect('(');
        const test = this.parseExpression();

        if (!this.match(')') && this.config.tolerant) {
            this.tolerateUnexpectedToken(this.nextToken());
            body = this.finalize(this.createNode(), new Node.EmptyStatement());
        } else {
            this.expect(')');

            const previousInIteration = this.context.inIteration;
            this.context.inIteration = true;
            body = this.parseStatement();
            this.context.inIteration = previousInIteration;
        }

        return this.finalize(node, new Node.WhileStatement(test, body));
    }

    // https://tc39.github.io/ecma262/#sec-for-statement
    // https://tc39.github.io/ecma262/#sec-for-in-and-for-of-statements