Method findMapperRoot

src/extraction/mybatis-extractor.ts:136–168

* Find the mapper root and its dialect. Two shapes are recognized: * - MyBatis 3: ` ` — namespace required. * - iBatis 2: ` `, or a namespace-less * ` ` whose statement ids carry the qualifier as `Map.statement`. *

()

   * (`namespace='X'` is legal XML and common in older mappers).
   */
  private findMapperRoot():
    | { namespace: string; dialect: 'mybatis' | 'ibatis'; bodyStart: number; bodyEnd: number }
    | null {
    const mapper = /<mapper\b([^>]*)>/.exec(this.source);
    if (mapper) {
      const nsMatch = /\bnamespace\s*=\s*(["'])([^"']+)\1/.exec(mapper[1] ?? '');
      if (nsMatch) {
        const bodyStart = mapper.index + mapper[0].length;
        const closeIdx = this.source.indexOf('</mapper>', bodyStart);
        return {
          namespace: nsMatch[2]!,
          dialect: 'mybatis',
          bodyStart,
          bodyEnd: closeIdx >= 0 ? closeIdx : this.source.length,
        };
      }
    }
    // iBatis 2 SqlMap. `\b` keeps `<sqlMapConfig>` (the iBatis config root,
    // which holds no statements) from matching here. namespace is optional.
    const sqlMap = /<sqlMap\b([^>]*)>/.exec(this.source);
    if (sqlMap) {
      const nsMatch = /\bnamespace\s*=\s*(["'])([^"']+)\1/.exec(sqlMap[1] ?? '');
      const bodyStart = sqlMap.index + sqlMap[0].length;
      const closeIdx = this.source.indexOf('</sqlMap>', bodyStart);
      return {
        namespace: nsMatch?.[2] ?? '',
        dialect: 'ibatis',
        bodyStart,
        bodyEnd: closeIdx >= 0 ? closeIdx : this.source.length,
      };
    }
    return null;
  }

  private extractMapper(
    fileNodeId: string,