Competing naming conventions for types

[benfrankel]

Some traits have competing naming conventions for types within Bevy:

Trait	Suffixes used	Suggestion
SystemSet	System, Set, Systems, no-suffix	Not obvious which to choose
Primitive3d	3d, 3, 3A, no-suffix	Probably fine as-is
Primitive2d	2d, 2, no-suffix	Probably fine as-is
Event	Event, no-suffix	Probably fine as-is
ScheduleLabel	Schedule, no-suffix	Just rename ExtractSchedule
RenderLabel	Label, no-suffix	Just rename CameraDriverLabel
SystemParam	Param, no-suffix	Just rename UiLayoutSystemRemovedComponentParam
PluginGroup	Plugins	:white_check_mark: (not counting PluginGroupBuilder)
Plugin	Plugin	:white_check_mark:
Bundle	Bundle	:white_check_mark:
AppLabel	App	:white_check_mark:
System	System	:white_check_mark:
Material	Material	:white_check_mark:
Component	no-suffix	:white_check_mark:
Resource	no-suffix	:white_check_mark:
Command	no-suffix	:white_check_mark:
Asset	no-suffix	:white_check_mark:
States	N/A	:white_check_mark: (no types provided by Bevy)
EntityCommand	N/A	:white_check_mark: (no types provided by Bevy)

Hard to search for because no distinguishing trait:

• Observable events
• Marker components

[benfrankel]

Event, Primitive2d, and Primitive3d are probably "fake inconsistent" and fine to stay as they are. So this can be narrowed down to SystemSet and three odd-one-out type names.

[alice-i-cecile]

Can you explain more about what you think should be done in all of the inconsistent cases?

[benfrankel]

I've edited the original comment with more context.

Evaluating the options for SystemSet

FooSystems:

+ Parallels `Plugins` for `PluginGroup`
+ Unambiguous
- Longest option (besides `SystemSet` as a suffix...)
- Used by 2/20 bevy system set types: `SimulationLightSystems` and `VisibilitySystems`
- Rarely (never?) used by 3rd-party crates

FooSystem:

+ Used by 10/20 bevy system set types.
+ Used by 3rd-party crates sometimes
- Still long
- Ambiguous (is it a system or a system set?)

FooSet:

+ Very short
+ Commonly used by 3rd-party crates
- Used by 2/20 bevy system set types: `RenderSet` and `ExtractMeshesSet`
- Ambiguous (is it a `SystemSet` or a set of `Foo`?)

Foo:

+ Shortest possible
+ Used by 6/20 bevy system set types
- May conflict with names of related types
- Not obvious that it's a `SystemSet`
- Rarely used by 3rd-party crates

[benfrankel]

I'm leaning Set for system sets, but it's not an obvious decision.

[janhohenheim]

I fully agree with the suggestions presented here. They seem reasonable and applicable. Especially the SystemSet inconsistency is a potential documentation hazard since users might not know what to search for.

[alice-i-cecile]

My preference is Set as well.