private scanBinaryLiteral()

in src/scanner.ts [688:721]

• 28 lines of code
• 8 McCabe index (conditional complexity)

    private scanBinaryLiteral(start: number): RawToken {
        let num = '';
        let ch;

        while (!this.eof()) {
            ch = this.source[this.index];
            if (ch !== '0' && ch !== '1') {
                break;
            }
            num += this.source[this.index++];
        }

        if (num.length === 0) {
            // only 0b or 0B
            this.throwUnexpectedToken();
        }

        if (!this.eof()) {
            ch = this.source.charCodeAt(this.index);
            /* istanbul ignore else */
            if (Character.isIdentifierStart(ch) || Character.isDecimalDigit(ch)) {
                this.throwUnexpectedToken();
            }
        }

        return {
            type: Token.NumericLiteral,
            value: parseInt(num, 2),
            lineNumber: this.lineNumber,
            lineStart: this.lineStart,
            start: start,
            end: this.index
        };
    }