pub struct RustClosure(_);

Implementations

Creates a new closure around a Rust closure.

See glib::closure! for a way to create a closure with concrete types.

Panics

Invoking the closure with wrong argument types or returning the wrong return value type will panic.

Example
use glib::prelude::*;

let closure = glib::RustClosure::new(|values| {
    let x = values[0].get::<i32>().unwrap();
    Some((x + 1).to_value())
});

assert_eq!(
    closure.invoke::<i32>(&[&1i32]),
    2,
);

Creates a new closure around a Rust closure.

See glib::closure_local! for a way to create a closure with concrete types.

Panics

Invoking the closure with wrong argument types or returning the wrong return value type will panic.

Invoking the closure from a different thread than this one will panic.

Invokes the closure with the given arguments.

For invalidated closures this returns the “default” value of the return type. For nullable types this is None, which means that e.g. requesting R = String will panic will R = Option<String> will return None.

Panics

The argument types and return value type must match the ones expected by the closure or otherwise this function panics.

Invokes the closure with the given arguments.

For invalidated closures this returns the “default” value of the return type.

Panics

The argument types and return value type must match the ones expected by the closure or otherwise this function panics.

Invalidates the closure.

Invoking an invalidated closure has no effect.

Trait Implementations

Converts this type into a shared reference of the (usually inferred) input type.

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Converts to this type from the input type.

Feeds this value into the given Hasher. Read more

Feeds a slice of this type into the given Hasher. Read more

This method returns an Ordering between self and other. Read more

Compares and returns the maximum of two values. Read more

Compares and returns the minimum of two values. Read more

Restrict a value to a certain interval. Read more

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.