greg/mentat
1
0
Fork 0
Code Issues 294 Pull requests Packages Projects Releases 9 Wiki Activity

Add retract_kw

Browse source
This commit is contained in:
Emily Toop 2018-02-15 18:09:48 +00:00
parent 9655c4b85d
commit 48ffa20d4c
1 changed files with 19 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
src/entity_builder.rs
View file

@ -259,11 +259,21 @@ impl<'a, 'c> InProgressBuilder<'a, 'c> {
pub fn add_kw<E, V>(&mut self, e: E, a: &NamespacedKeyword, v: V) -> Result<()>
where E: IntoThing<KnownEntidOr<TempIdHandle>>,
V: IntoThing<TypedValueOr<TempIdHandle>> {
let (attribute, value) = self.extract_kw_value(a, v.into_thing())?;
self.add(e, attribute, value)
}
pub fn retract_kw<E, V>(&mut self, e: E, a: &NamespacedKeyword, v: V) -> Result<()>
where E: IntoThing<KnownEntidOr<TempIdHandle>>,
V: IntoThing<TypedValueOr<TempIdHandle>> {
let (attribute, value) = self.extract_kw_value(a, v.into_thing())?;
self.retract(e, attribute, value)
}
fn extract_kw_value(&mut self, a: &NamespacedKeyword, v: TypedValueOr<TempIdHandle>) -> Result<(KnownEntid, TypedValueOr<TempIdHandle>)> {
let attribute: KnownEntid;
let value: TypedValueOr<TempIdHandle>;
if let Some((attr, aa)) = self.in_progress.attribute_for_ident(a) {
let vv = v.into_thing();
if let Either::Left(ref tv) = vv {
if let Either::Left(ref tv) = v {
let provided = tv.value_type();
let expected = attr.value_type;
if provided != expected {
@ -271,11 +281,10 @@ impl<'a, 'c> InProgressBuilder<'a, 'c> {
}
}
attribute = aa;
value = vv;
} else {
bail!(ErrorKind::UnknownAttribute(a.to_string()));
}
self.add(e, attribute, value)
Ok((attribute, v))
}
}
@ -285,6 +294,11 @@ impl<'a, 'c> EntityBuilder<InProgressBuilder<'a, 'c>> {
self.builder.add_kw(self.entity.clone(), a, v)
}
pub fn retract_kw<V>(&mut self, a: &NamespacedKeyword, v: V) -> Result<()>
where V: IntoThing<TypedValueOr<TempIdHandle>> {
self.builder.retract_kw(self.entity.clone(), a, v)
}
/// Build the terms from this builder and transact them against the current
/// `InProgress`. This method _always_ returns the `InProgress` -- failure doesn't
/// imply an automatic rollback.