Struct EnvironmentValues 

pub struct EnvironmentValues(/* private fields */);

A borrowed SwiftUI.EnvironmentValues, live for the body call that got it.

The pointer is SwiftUI’s, valid only while the closure that received it is running, which is why this borrows rather than owns.

Implementations

impl EnvironmentValues

pub unsafe fn bool_at(self, getter: *const c_void) -> bool

Read a Bool property by its getter symbol.

EnvironmentValues is resilient, so self travels by address in x20 and the answer comes back in x0. Every Bool property on it has the same shape, so one function covers all of them.

Safety

getter must name a (EnvironmentValues) -> Bool property getter.

pub fn voice_over_enabled(self) -> bool

\\.accessibilityVoiceOverEnabled

pub fn switch_control_enabled(self) -> bool

\\.accessibilitySwitchControlEnabled

pub fn value_for<T: KeyValue>(self, key: &CustomEnvKey<T>) -> T

Read a key defined here — env[myKey], through the key path.

swift_getAtKeyPath(sret Value, @in Root, KeyPath): the result is sret so it goes through x8 while the root is in x0. Whatever nothing above has written, this returns the key’s defaultValue — which SwiftUI gets from the synthesised witness, so the default really is the caller’s.

The type comes from the key, so this cannot read a String key as an Int: the buffer is sized by T’s metadata and +1-owned on return, which is why it is destroyed after the copy out.

Trait Implementations

impl Clone for EnvironmentValues

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for EnvironmentValues