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NameRefs

Struct NameRefs 

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pub struct NameRefs<'a> { /* private fields */ }
Expand description

A lookup plus the names it could not answer — the shape every by-name lowering wants (Lua’s props, a keyframe stop or an entrance in any binding, since those cross as plain data with the name still in them), so the one miss policy is written once: a $name that resolves to nothing, or to the other kind, is None — the slot is left at the row’s default, the way the prop would be if it were not declared — and the miss is remembered for the caller to raise as unknown-token once the lookup’s borrow of the core is handed back (Core::warn_unknown_token).

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impl<'a> NameRefs<'a>

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pub fn new(look: TokenLookup<'a>) -> Self

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pub fn family(&mut self, name: &str) -> FontFamily

The family a text names: a stock one by its spelling (sans, serif, mono), else an installed or loaded family, registered in the session and drawn by its handle. A name nothing matches is sans, and remembered for the caller to raise as unknown-family (Core::warn_unknown_family).

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pub fn take_missed_families(&mut self) -> Vec<String>

The family names that matched nothing, taken; each one line of unknown-family for the caller to raise.

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pub fn lookup(&self) -> TokenLookup<'a>

The lookup itself, for a caller that reads a token without the miss bookkeeping.

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pub fn color(&mut self, name: &str) -> Option<Color>

The colour name resolves to this frame, or None (remembered).

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pub fn length(&mut self, name: &str) -> Option<f32>

The length name resolves to this frame, or None (remembered).

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pub fn color_ref(&mut self, v: &Value) -> Option<Option<Color>>

A value that is a $name colour reference, resolved; None for a value that is not a reference. A reference that missed is Some(None): consumed, unresolved, remembered.

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pub fn length_ref(&mut self, v: &Value) -> Option<Option<f32>>

The same for a length.

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pub fn take_missed(&mut self) -> Vec<TokenError>

The names that resolved to nothing, taken; each one line of unknown-token for the caller to raise.

Auto Trait Implementations§

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impl<'a> !RefUnwindSafe for NameRefs<'a>

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impl<'a> !Send for NameRefs<'a>

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impl<'a> !Sync for NameRefs<'a>

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impl<'a> !UnwindSafe for NameRefs<'a>

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impl<'a> Freeze for NameRefs<'a>

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impl<'a> Unpin for NameRefs<'a>

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impl<'a> UnsafeUnpin for NameRefs<'a>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.