private getIdentifier()

in src/scanner.ts [428:449]

• 19 lines of code
• 6 McCabe index (conditional complexity)

    private getIdentifier(): string {
        const start = this.index++;
        while (!this.eof()) {
            const ch = this.source.charCodeAt(this.index);
            if (ch === 0x5C) {
                // Blackslash (U+005C) marks Unicode escape sequence.
                this.index = start;
                return this.getComplexIdentifier();
            } else if (ch >= 0xD800 && ch < 0xDFFF) {
                // Need to handle surrogate pairs.
                this.index = start;
                return this.getComplexIdentifier();
            }
            if (Character.isIdentifierPart(ch)) {
                ++this.index;
            } else {
                break;
            }
        }

        return this.source.slice(start, this.index);
    }