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Load a default written out in every position, refuse null outside a column again, read a field once per alternation, refuse an empty segment in the CLI's lone reference, and hold a declared datatype as one value

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Lilleman auf Larv
2026-10-07 23:20:59 +02:00
committed by Lillem4n
parent 49736bd2b6
commit d8acc9f3f3
8 changed files with 104 additions and 71 deletions
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valueproof.go
+14 -13
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@@ -19,31 +19,32 @@ type valueProof struct {
// checkDatatype rejects a typed column item some render of which is not text of its datatype.
func (p *valueProof) checkDatatype(label string, n node) error {
t, ok := n.(*template)
if !ok || t.datatype == DataTypeString {
if !ok || t.datatype == nil || *t.datatype == DataTypeString {
return nil
}
if reason := p.proveColumnItem(t).Not[t.datatype]; reason != "" {
return fmt.Errorf("%s: datatype %s: %s", label, t.datatype, reason)
if reason := p.proveColumnItem(t).Not[*t.datatype]; reason != "" {
return fmt.Errorf("%s: datatype %s: %s", label, *t.datatype, reason)
}
return nil
}
// checkField rejects a column a field of Go type ft cannot fill: a datatype, which the Go type
// sets, a null outside a pointer, or a value its kind's datatype or range refuses.
// checkField rejects a column a field of Go type ft cannot fill: a datatype other than the one the
// Go type sets, a null outside a pointer, or a value its kind's datatype or range refuses.
func (p *valueProof) checkField(label string, ft reflect.Type, column node) error {
items, _ := columnItems(column)
for _, it := range items {
if it.declared {
return fmt.Errorf("%s: its Go type %s sets the datatype; drop \"datatype\"", label, ft)
}
}
elem := ft
if ft.Kind() == reflect.Pointer {
elem = ft.Elem()
} else if p.proveColumn(column).Nullable {
return fmt.Errorf("%s: its tag can draw null, which %s cannot hold; make it *%s", label, ft, ft)
}
kind := columnKinds[elem.Kind()]
items, _ := columnItems(column)
for _, it := range items {
if it.datatype != nil && *it.datatype != kind.datatype {
return fmt.Errorf("%s: its Go type %s sets the datatype %s; drop \"datatype\"", label, ft, kind.datatype)
}
}
if ft.Kind() != reflect.Pointer && p.proveColumn(column).Nullable {
return fmt.Errorf("%s: its tag can draw null, which %s cannot hold; make it *%s", label, ft, ft)
}
if kind.datatype == DataTypeString {
return nil
}