Struct mentat_core::StructuredMap

[+] Show type declaration

pub struct StructuredMap(pub IndexMap<ValueRc<Keyword>, Binding>);

[−] Expand description

A pull expression expands a binding into a structure. The returned structure associates attributes named in the input or retrieved from the store with values. This association is a StructuredMap.

Note that 'attributes' in Datomic's case can mean:

• Reversed attribute keywords (:artist/_country).
• An alias using :as (:artist/name :as "Band name").

We entirely support the former, and partially support the latter -- you can alias using a different keyword only.

Methods

impl StructuredMap

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pub fn insert<N, B>(&mut self, name: N, value: B) where     N: Into<ValueRc<Keyword>>,     B: Into<Binding>,

Trait Implementations

impl From<StructuredMap> for Binding

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fn from(value: StructuredMap) -> Self

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Performs the conversion.

impl Clone for StructuredMap

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fn clone(&self) -> StructuredMap

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Returns a copy of the value.

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

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Performs copy-assignment from source.

impl Debug for StructuredMap

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fn fmt(&self, __arg_0: &mut Formatter) -> Result

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Formats the value using the given formatter.

impl Default for StructuredMap

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fn default() -> StructuredMap

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Returns the "default value" for a type.

impl Eq for StructuredMap

impl PartialEq for StructuredMap

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fn eq(&self, __arg_0: &StructuredMap) -> bool

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

fn ne(&self, __arg_0: &StructuredMap) -> bool

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This method tests for !=.

impl From<IndexMap<ValueRc<Keyword>, Binding>> for StructuredMap

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fn from(src: IndexMap<ValueRc<Keyword>, Binding>) -> Self

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Performs the conversion.

impl<T> From<Vec<(Keyword, T)>> for StructuredMap where     T: Into<Binding>,

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fn from(value: Vec<(Keyword, T)>) -> Self

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Performs the conversion.