{"record":{"id":"2eb29386a2f504c4","repo":"go-delve/delve","slug":"entry-does-not-have-a-type-attribute","errorCode":null,"errorMessage":"entry does not have a type attribute","messagePattern":"entry does not have a type attribute","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"warning","filePath":"pkg/dwarf/reader/reader.go","lineNumber":61,"sourceCode":"\tif !ok {\n\t\treturn 0, errors.New(\"type assertion failed\")\n\t}\n\taddr, _, err := op.ExecuteStackProgram(op.DwarfRegisters{StaticBase: staticBase}, instructions, ptrSize, nil)\n\tif err != nil {\n\t\treturn 0, err\n\t}\n\treturn uint64(addr), nil\n}\n\nvar ErrTypeNotFound = errors.New(\"no type entry found, use 'types' for a list of valid types\")\n\n// SeekToType moves the reader to the type specified by the entry,\n// optionally resolving typedefs and pointer types. If the reader is set\n// to a struct type the NextMemberVariable call can be used to walk all member data.\nfunc (reader *Reader) SeekToType(entry *dwarf.Entry, resolveTypedefs bool, resolvePointerTypes bool) (*dwarf.Entry, error) {\n\toffset, ok := entry.Val(dwarf.AttrType).(dwarf.Offset)\n\tif !ok {\n\t\treturn nil, errors.New(\"entry does not have a type attribute\")\n\t}\n\n\t// Seek to the first type offset\n\treader.Seek(offset)\n\n\t// Walk the types to the base\n\tfor typeEntry, err := reader.Next(); typeEntry != nil; typeEntry, err = reader.Next() {\n\t\tif err != nil {\n\t\t\treturn nil, err\n\t\t}\n\n\t\tif typeEntry.Tag == dwarf.TagTypedef && !resolveTypedefs {\n\t\t\treturn typeEntry, nil\n\t\t}\n\n\t\tif typeEntry.Tag == dwarf.TagPointerType && !resolvePointerTypes {\n\t\t\treturn typeEntry, nil\n\t\t}","sourceCodeStart":43,"sourceCodeEnd":79,"githubUrl":"https://github.com/go-delve/delve/blob/a23773e6c31361e43246bc43a424ee009679b174/pkg/dwarf/reader/reader.go#L43-L79","documentation":"Returned by Reader.SeekToType when the given DWARF entry lacks a DW_AT_type attribute, so there is no offset to seek to. Entries such as void-returning functions or untyped entries have no type reference.","triggerScenarios":"Calling SeekToType (or higher-level helpers that use it) on an entry without AttrType — e.g., a function entry whose return type is void, or a malformed entry.","commonSituations":"Inspecting subroutine entries with no return type, walking members of types compiled with incomplete debug info, or version-specific entries missing AttrType.","solutions":["Check entry.Val(dwarf.AttrType) is a dwarf.Offset before calling SeekToType","Treat missing AttrType as 'void/unknown' at the call site and skip type resolution","Regenerate debug info if the entry should legitimately have a type"],"exampleFix":"// before\nentry, err := reader.SeekToType(fnEntry, true, true)\n// after\nif fnEntry.Val(dwarf.AttrType) == nil {\n    return nil // no return type (void)\n}\nentry, err := reader.SeekToType(fnEntry, true, true)","handlingStrategy":"type-guard","validationCode":null,"typeGuard":"func hasTypeAttr(e *dwarf.Entry) bool {\n    _, ok := e.Val(dwarf.AttrType).(dwarf.Offset)\n    return ok\n}","tryCatchPattern":null,"preventionTips":["Check for AttrType before type resolution walks","Treat absent AttrType as void/unknown rather than an exceptional case"],"tags":["dwarf","missing-attribute","type-resolution"],"backgroundTag":"dwarf-attribute-type-mismatch","analyzedSha":"a23773e6c31361e43246bc43a424ee009679b174","analyzedAt":"2026-08-31T15:12:45.221Z","schemaVersion":2},"datasetVersion":"2026-08-31T19:17:28.585Z"}