Method expectChar

src/common/json5.ts:299–306

(expected: string)

  }

  private expectChar(expected: string): void {
    if (this.currentChar() !== expected) {
      throw this.error(
        `Expected '${expected}' but found '${this.currentChar()}'`
      );
    }
    this.index++;
  }

  currentChar(): string {
    return this.text[this.index];