bc82749012
# Objective We deprecated quite a few APIs in 0.13. 0.13 has shipped already. It should be OK to remove them in 0.14's release. Fixes #4059. Fixes #9011. ## Solution Remove them.
35 lines
1.5 KiB
Rust
35 lines
1.5 KiB
Rust
use thiserror::Error;
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use crate::entity::Entity;
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/// An error that occurs when retrieving a specific [`Entity`]'s query result from [`Query`](crate::system::Query) or [`QueryState`](crate::query::QueryState).
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// TODO: return the type_name as part of this error
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#[derive(Debug, PartialEq, Eq, Clone, Copy, Error)]
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pub enum QueryEntityError {
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/// The given [`Entity`]'s components do not match the query.
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///
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/// Either it does not have a requested component, or it has a component which the query filters out.
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#[error("The components of entity {0:?} do not match the query")]
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QueryDoesNotMatch(Entity),
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/// The given [`Entity`] does not exist.
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#[error("The entity {0:?} does not exist")]
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NoSuchEntity(Entity),
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/// The [`Entity`] was requested mutably more than once.
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///
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/// See [`QueryState::get_many_mut`](crate::query::QueryState::get_many_mut) for an example.
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#[error("The entity {0:?} was requested mutably more than once")]
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AliasedMutability(Entity),
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}
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/// An error that occurs when evaluating a [`Query`](crate::system::Query) or [`QueryState`](crate::query::QueryState) as a single expected result via
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/// [`get_single`](crate::system::Query::get_single) or [`get_single_mut`](crate::system::Query::get_single_mut).
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#[derive(Debug, Error)]
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pub enum QuerySingleError {
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/// No entity fits the query.
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#[error("No entities fit the query {0}")]
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NoEntities(&'static str),
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/// Multiple entities fit the query.
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#[error("Multiple entities fit the query {0}")]
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MultipleEntities(&'static str),
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}
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