pub enum Class {
Misc,
Type,
Expression,
Relation,
}Expand description
Semantical information about a node.
Variants
Misc
Used for nodes for which no better classification exists.
Type
Used for nodes that define a type. The data_type field signifies this data type.
Expression
Used for nodes that represent scalar expressions or literals. The data_type field signifies the type of the value returned by the expression.
Relation
Used for nodes that represent relations. The data_type field signifies the schema for the data returned by the relation.
Trait Implementations
impl Copy for Class
impl StructuralPartialEq for Class
Auto Trait Implementations
impl RefUnwindSafe for Class
impl Send for Class
impl Sync for Class
impl Unpin for Class
impl UnwindSafe for Class
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
🔬 This is a nightly-only experimental API. (
toowned_clone_into)Uses borrowed data to replace owned data, usually by cloning. Read more