Struct FieldAnalysis

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pub struct FieldAnalysis {
    pub definitely_initialized: HashMap<BasicBlockId, HashSet<FieldKey>>,
    pub field_liveness: HashMap<BasicBlockId, HashSet<FieldKey>>,
    pub dead_fields: HashSet<FieldKey>,
    pub conditionally_initialized: HashSet<FieldKey>,
    pub hoisted_fields: HashMap<SlotId, Vec<FieldIdx>>,
    pub hoisting_recommendations: HashMap<SlotId, Vec<(FieldIdx, String)>>,
}

Expand description

Results of field-level analysis for a single MIR function.

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§definitely_initialized: HashMap<BasicBlockId, HashSet<FieldKey>>

Fields that are definitely initialized at the entry of each block.

§field_liveness: HashMap<BasicBlockId, HashSet<FieldKey>>

Fields that are live (have future reads) at the entry of each block.

§dead_fields: HashSet<FieldKey>

Fields that are assigned but never read anywhere in the function.

§conditionally_initialized: HashSet<FieldKey>

Fields that are initialized on some but not all paths to a use point.

§hoisted_fields: HashMap<SlotId, Vec<FieldIdx>>

Fields eligible for TypedObject schema hoisting: written on any path and not dead. Keyed by slot, with the list of field indices to hoist.

§hoisting_recommendations: HashMap<SlotId, Vec<(FieldIdx, String)>>

MIR-authoritative hoisting recommendations: maps each slot to pairs of (field_index, field_name) for schema construction. Populated when field names are available from the lowering result.

Trait Implementations§

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impl Debug for FieldAnalysis

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for FieldAnalysis

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<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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