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Local with required config as a type parameter #2491

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Local with required config as a type parameter #2491

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mockersf
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Objective

Solution

  • Added three unit struct to configure a Local: Default, FromWorld and NeedConfig
  • By default, it is using the Default configuration. This is a breaking change but it's what is making the most sense
  • If the Local is initialised by Default, nothing change
  • For the other, need to add an extra type parameter to local, either local_value::FromWorld or local_value::NeedConfig

@github-actions github-actions bot added the S-Needs-Triage This issue needs to be labelled label Jul 16, 2021
@mockersf mockersf added A-ECS Entities, components, systems, and events C-Feature A new feature, making something new possible and removed S-Needs-Triage This issue needs to be labelled labels Jul 16, 2021
@alice-i-cecile
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By default, it is using the Default configuration. This is a breaking change but it's what is making the most sense

Definitely agree with this choice. I would expect the large majority of current uses to be using Default.

@cart cart added the S-Pre-Relicense This PR was made before Bevy added the Apache license. Cannot be merged or used for other work label Jul 23, 2021
@mockersf mockersf removed the S-Pre-Relicense This PR was made before Bevy added the Apache license. Cannot be merged or used for other work label Jul 24, 2021
@alice-i-cecile alice-i-cecile mentioned this pull request Jul 26, 2021
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@alice-i-cecile alice-i-cecile mentioned this pull request Jul 28, 2021
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NiklasEi
NiklasEi reviewed Oct 29, 2021
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crates/bevy_ecs/src/system/system_param.rs
/// system.initialize(world);
/// system.run((), world);
/// ```
pub struct Local<'a, T: Resource, ValueFrom: local_value::LocalValue = local_value::Default> {
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How about ValueFrom -> InitializeWith?

crates/bevy_ecs/src/system/system_param.rs

/// [`Local`](crate::system::Local) should be initialized by calling
/// [`FunctionSystem::config()`](crate::system::FunctionSystem::config) on the system.
pub struct NeedConfig;
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Maybe SystemConfig would fit better?

@DJMcNab DJMcNab mentioned this pull request Jan 10, 2022
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@alice-i-cecile alice-i-cecile added M-Needs-Migration-Guide A breaking change to Bevy's public API that needs to be noted in a migration guide and removed S-Needs-Migration-Guide labels Jan 20, 2022
bors bot pushed a commit that referenced this pull request Feb 25, 2022
@DJMcNab
Remove the config api (#3633)
c1a4a2f 
# Objective

- Fix the ugliness of the `config` api. 
- Supercedes #2440, #2463, #2491

## Solution

- Since #2398, capturing closure systems have worked.
- Use those instead where we needed config before
- Remove the rest of the config api. 
- Related: #2777
@DJMcNab
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DJMcNab commented Feb 28, 2022

As of #3633, this no longer makes sense.

@mockersf mockersf closed this Feb 28, 2022
kurtkuehnert pushed a commit to kurtkuehnert/bevy that referenced this pull request Mar 6, 2022
@DJMcNab
Remove the config api (bevyengine#3633)
55ac6c3 
# Objective

- Fix the ugliness of the `config` api. 
- Supercedes bevyengine#2440, bevyengine#2463, bevyengine#2491

## Solution

- Since bevyengine#2398, capturing closure systems have worked.
- Use those instead where we needed config before
- Remove the rest of the config api. 
- Related: bevyengine#2777
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@mockersf @alice-i-cecile @DJMcNab @NiklasEi @cart