internal/abi.Map: IndirectKey/IndirectElem

internal/abi/type.go

@@ -170,6 +170,24 @@ type MapType struct {
 	Flags      uint32
 }
 
+// Note: flag values must match those used in the TMAP case
+// in ../cmd/compile/internal/reflectdata/reflect.go:writeType.
+func (mt *MapType) IndirectKey() bool { // store ptr to key instead of key itself
+	return mt.Flags&1 != 0
+}
+func (mt *MapType) IndirectElem() bool { // store ptr to elem instead of elem itself
+	return mt.Flags&2 != 0
+}
+func (mt *MapType) ReflexiveKey() bool { // true if k==k for all keys
+	return mt.Flags&4 != 0
+}
+func (mt *MapType) NeedKeyUpdate() bool { // true if we need to update key on an overwrite
+	return mt.Flags&8 != 0
+}
+func (mt *MapType) HashMightPanic() bool { // true if hash function might panic
+	return mt.Flags&16 != 0
+}
+
 type PtrType struct {
 	Type
 	Elem *Type // pointer element (pointed at) type