{"record":{"id":"ac1c632b0d5c043c","repo":"antonmedv/fx","slug":"unexpected-state-v","errorCode":null,"errorMessage":"Unexpected state: %v","messagePattern":"Unexpected state: (.+?)","errorType":"error_code","errorClass":null,"httpStatus":null,"severity":"error","filePath":"internal/shlex/shlex.go","lineNumber":385,"sourceCode":"\t\t\t\t\t\tif nextRune == '\\n' {\n\t\t\t\t\t\t\tstate = startState\n\t\t\t\t\t\t\ttoken := &Token{\n\t\t\t\t\t\t\t\ttokenType: tokenType,\n\t\t\t\t\t\t\t\tvalue:     string(value)}\n\t\t\t\t\t\t\treturn token, err\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tvalue = append(value, nextRune)\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\tdefault:\n\t\t\t\t\t{\n\t\t\t\t\t\tvalue = append(value, nextRune)\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\tdefault:\n\t\t\t{\n\t\t\t\treturn nil, fmt.Errorf(\"Unexpected state: %v\", state)\n\t\t\t}\n\t\t}\n\t}\n}\n\n// Next returns the next token in the stream.\nfunc (t *Tokenizer) Next() (*Token, error) {\n\treturn t.scanStream()\n}\n\n// Split partitions a string into a slice of strings.\nfunc Split(s string) ([]string, error) {\n\tl := NewLexer(strings.NewReader(s))\n\tsubStrings := make([]string, 0)\n\tfor {\n\t\tword, err := l.Next()\n\t\tif err != nil {\n\t\t\tif err == io.EOF {","sourceCodeStart":367,"sourceCodeEnd":403,"githubUrl":"https://github.com/antonmedv/fx/blob/4f31cd3a0c5d66f1b4290a2719bab14a5cee8ebe/internal/shlex/shlex.go#L367-L403","documentation":"Default-branch guard in Tokenizer.scanStream: the tokenizer state machine reached a state value it does not recognize. This can only happen if the internal state variable is corrupted or a new state was added without a corresponding case, so it signals an implementation bug rather than bad user input.","triggerScenarios":"Thrown at internal/shlex/shlex.go:385 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Add a case for the reported state in scanStream","Report as a bug with the input that triggered it","Retry with simpler, well-formed quoted input as a workaround"],"exampleFix":null,"handlingStrategy":"fallback","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"4f31cd3a0c5d66f1b4290a2719bab14a5cee8ebe","analyzedAt":"2026-09-02T02:17:47.344Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-09T06:17:21.866Z"}