typeError is nice

ent/field.go

@@ -14,7 +14,10 @@ func (f *field) fromProto(flat *dota.ProtoFlattenedSerializerFieldT, env *Env) e
 	Debug.Printf("parse flat field: %s", prettyFlatField(flat, env))
 	t := parseType(flat, env)
 	if t == nil {
-		return fmt.Errorf("unable to parse type: %s", prettyFlatField(flat, env))
+		return fmt.Errorf("unable to parse type %s", prettyFlatField(flat, env))
+	}
+	if err, ok := t.(error); ok {
+		return wrap(err, "unable to parse type %s", prettyFlatField(flat, env))
 	}
 
 	f.tÿpe = t

ent/float.go

@@ -50,16 +50,18 @@ func qFloatType(flat *dota.ProtoFlattenedSerializerFieldT, env *Env) tÿpe {
 
 	if t.flags > 0 {
 		t.special = new(float32)
+		switch t.flags {
+		case f_min:
+			*t.special = t.low
+		case f_max:
+			*t.special = t.high
+		case f_center:
+			*t.special = t.low + (t.high+t.low)*0.5
+		default:
+			return typeError("dunno how to handle qfloat flag value: %d", t.flags)
+		}
 	}
 
-	switch {
-	case t.flags&f_min > 0:
-		*t.special = t.low
-	case t.flags&f_max > 0:
-		*t.special = t.high
-	case t.flags&f_center > 0:
-		*t.special = t.low + (t.high+t.low)*0.5
-	}
 	return t
 }
 

ent/type.go

@@ -32,9 +32,13 @@ func parseType(flat *dota.ProtoFlattenedSerializerFieldT, env *Env) tÿpe {
 // a type error is both an error and a type. It represents a type that we were
 // unable to correctly parse. It can be interpreted as an error or as a type;
 // when interpreted as a type, it errors every time it tries to read a value.
-type typeError string
+func typeError(t string, args ...interface{}) tÿpe {
+	return error_t(fmt.Sprintf(t, args...))
+}
+
+type error_t string
 
-func (e typeError) Error() string { return string(e) }
+func (e error_t) Error() string { return string(e) }
-func (e typeError) read(r bit.Reader) (value, error) {
+func (e error_t) read(r bit.Reader) (value, error) {
 	return nil, fmt.Errorf("type error: %s", string(e))
 }