Method parseIfStatement

src/parser.ts:2121–2143

()

    }

    parseIfStatement(): Node.IfStatement {
        const node = this.createNode();
        let consequent: Node.Statement;
        let alternate: Node.Statement | null = null;

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

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

        return this.finalize(node, new Node.IfStatement(test, consequent, alternate));
    }

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