Error while compiling with jspm  #24

err MultipleErrors: Error compiling cjs module "npm:sql-parser@0.5.0/lib/compiled_parser.js" at jspm_packages/npm/sql-parser@0.5.0/lib/compiled_parser.js
jspm_packages/npm/sql-parser@0.5.0/lib/compiled_parser.js:338:9: Unexpected reserved word function
jspm_packages/npm/sql-parser@0.5.0/lib/compiled_parser.js:338:24: Semi-colon expected

caused by
compiled_parser.js:338 _token_stack: function lex() { var token; ...

Without _token_stack: works well.