Struct minijinja::value::Value [−][src]
pub struct Value(_);
Expand description
Represents a dynamically typed value in the template engine.
Implementations
Creates a value from something that can be serialized.
Creates a value from a safe string.
Creates a value from a dynamic object.
Returns some reference to the boxed object if it is of type T
, or None if it isn’t.
This is basically the “reverse” of from_object
.
Example
use std::fmt;
#[derive(Debug)]
struct Thing {
id: usize,
}
impl fmt::Display for Thing {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt::Debug::fmt(self, f)
}
}
impl Object for Thing {}
let x_value = Value::from_object(Thing { id: 42 });
let thing = x_value.downcast_object_ref::<Thing>().unwrap();
assert_eq!(thing.id, 42);
Returns the primitive representation of the value.
Returns true
if this value is undefined.
Looks up an attribute by attribute name.
Trait Implementations
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
Auto Trait Implementations
impl !RefUnwindSafe for Value
impl !UnwindSafe for Value
Blanket Implementations
Mutably borrows from an owned value. Read more