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Lifetime issues with EntityCommands
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use bevy_ecs::{prelude::*, system::EntityCommands}; | |
use bevy_math::prelude::*; | |
use bevy_text::*; | |
use bevy_transform::hierarchy::BuildChildren; | |
use bevy_ui::{entity::*, *}; | |
use super::TooltipTextUiNode; | |
pub struct TooltipBuilder<'a, 'w, 's> { | |
commands: &'a mut Commands<'w, 's>, | |
text: Option<Text>, | |
} | |
impl<'a, 'w, 's> TooltipBuilder<'a, 'w, 's> { | |
/// Creates a new tooltip builder | |
pub fn new(commands: &'a mut Commands<'w, 's>) -> TooltipBuilder<'a, 'w, 's> { | |
Self { | |
commands, | |
text: None, | |
} | |
} | |
/// Sets the text of the tooltip | |
pub fn with_text(&mut self, text: Text) -> &mut Self { | |
self.text = Some(text); | |
self | |
} | |
/// Consumes the builder, spawns the entity and returns the EntityCommands for the root node. | |
pub fn spawn<'b>(self) -> EntityCommands<'w, 's, 'b> { | |
let root = self | |
.commands | |
.spawn_bundle(NodeBundle { | |
style: Style { | |
position_type: PositionType::Absolute, | |
border: Rect::all(Val::Px(2.0)), | |
align_items: AlignItems::Center, | |
..Default::default() | |
}, | |
..Default::default() | |
}) | |
.id(); | |
let text = self | |
.commands | |
.spawn_bundle(TextBundle { | |
style: Style { | |
margin: Rect::all(Val::Px(5.0)), | |
..Default::default() | |
}, | |
text: self.text.unwrap_or_default(), | |
..Default::default() | |
}) | |
.insert(TooltipTextUiNode(root)) | |
.id(); | |
self.commands.entity(root).push_children(&[text]); | |
self.commands.entity(root) | |
} | |
} |
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error[E0495]: cannot infer an appropriate lifetime for autoref due to conflicting requirements | |
--> src\tooltip\builder.rs:58:23 | |
| | |
58 | self.commands.entity(root) | |
| ^^^^^^ | |
| | |
note: first, the lifetime cannot outlive the lifetime `'a` as defined here... | |
--> src\tooltip\builder.rs:14:6 | |
| | |
14 | impl<'a, 'w, 's> TooltipBuilder<'a, 'w, 's> { | |
| ^^ | |
note: ...so that reference does not outlive borrowed content | |
--> src\tooltip\builder.rs:58:9 | |
| | |
58 | self.commands.entity(root) | |
| ^^^^^^^^^^^^^ | |
note: but, the lifetime must be valid for the lifetime `'b` as defined here... | |
--> src\tooltip\builder.rs:30:18 | |
| | |
30 | pub fn spawn<'b>(self) -> EntityCommands<'w, 's, 'b> { | |
| ^^ | |
note: ...so that the types are compatible | |
--> src\tooltip\builder.rs:58:9 | |
| | |
58 | self.commands.entity(root) | |
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
= note: expected `EntityCommands<'w, 's, 'b>` | |
found `EntityCommands<'_, '_, '_>` |
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