go-delve/delve · error

parametric type without a dictionary

Error message

parametric type without a dictionary

What it means

Error "parametric type without a dictionary" thrown in go-delve/delve.

Source

Thrown at pkg/proc/types.go:114

					return nil, false, fmt.Errorf("invalid interface type: %v", err)
				}
				return typ, getRuntimeTypeDirect(_type), nil
			}
		}
	}

	return nil, false, errors.New("could not resolve interface type")
}

// resolveParametricType returns the real type of t if t is a parametric
// type, by reading the correct dictionary entry.
func resolveParametricType(bi *BinaryInfo, mem MemoryReadWriter, t godwarf.Type, dictAddr uint64) (godwarf.Type, error) {
	ptyp, _ := t.(*godwarf.ParametricType)
	if ptyp == nil {
		return t, nil
	}
	if dictAddr == 0 {
		return ptyp.TypedefType.Type, errors.New("parametric type without a dictionary")
	}
	rtypeAddr, err := readUintRaw(mem, dictAddr+uint64(ptyp.DictIndex*int64(bi.Arch.PtrSize())), int64(bi.Arch.PtrSize()))
	if err != nil {
		return ptyp.TypedefType.Type, err
	}
	runtimeType, err := bi.findType(bi.runtimeTypeTypename())
	if err != nil {
		return ptyp.TypedefType.Type, err
	}
	_type := newVariable("", rtypeAddr, runtimeType, bi, mem)

	mds, err := bi.getModuleData(_type.mem)
	if err != nil {
		return ptyp.TypedefType.Type, err
	}

	typ, _, err := RuntimeTypeToDIE(_type, 0, mds)
	if err != nil {

View on GitHub (pinned to a23773e6c3)

When it happens

Trigger: Thrown at pkg/proc/types.go:114 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of go-delve/delve@a23773e6c3 (2026-08-31). Data as JSON: /api/errors/5da390a7a06721f1. Report an issue: GitHub.