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https://github.com/GraphiteEditor/Graphite.git
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Mohd MohsinandKeavon Chambers
00236c8136
* Feat: implement the hierarchical tree for visualization * rename HierarchicalTree trait function * feat: change the HierarchicalTree from String to DebugMessageTree struct * Nits * feat: impliment proc macro to extract field from messagedata structs * update the hierarchical-tree for hanlder data * feat: added message handler struct to hierarchical tree * feat: add the line number to message handler struct * feat: added handler path to tree and NITS * clean the white spaces in type string * fixes some white spaces * feat: added path to message enum in hierarchical tree * feat: add file creation of hierarchical message system tree * cleanup * Code review * Add todo comment for deferred change --------- Co-authored-by: Keavon Chambers <keavon@keavon.com>
64 lines
1.9 KiB
Rust
64 lines
1.9 KiB
Rust
pub use crate::dispatcher::*;
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use crate::messages::prelude::*;
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/// Implements a message handler struct for a separate message struct.
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/// - The first generic argument (`M`) is that message struct type, representing a message enum variant to be matched and handled in `process_message()`.
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/// - The second generic argument (`D`) is the type of data that can be passed along by the caller to `process_message()`.
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pub trait MessageHandler<M: ToDiscriminant, D>
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where
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M::Discriminant: AsMessage,
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<M::Discriminant as TransitiveChild>::TopParent: TransitiveChild<Parent = <M::Discriminant as TransitiveChild>::TopParent, TopParent = <M::Discriminant as TransitiveChild>::TopParent> + AsMessage,
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{
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/// Return true if the Action is consumed.
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fn process_message(&mut self, message: M, responses: &mut VecDeque<Message>, data: D);
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fn actions(&self) -> ActionList;
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}
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pub type ActionList = Vec<Vec<MessageDiscriminant>>;
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pub trait AsMessage: TransitiveChild
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where
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Self::TopParent: TransitiveChild<Parent = Self::TopParent, TopParent = Self::TopParent> + AsMessage,
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{
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fn local_name(self) -> String;
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fn global_name(self) -> String {
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<Self as Into<Self::TopParent>>::into(self).local_name()
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}
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}
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// TODO: Add Send + Sync requirement
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// Use something like rw locks for synchronization
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pub trait MessageHandlerData {}
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pub trait ToDiscriminant {
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type Discriminant;
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fn to_discriminant(&self) -> Self::Discriminant;
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}
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pub trait TransitiveChild: Into<Self::Parent> + Into<Self::TopParent> {
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type TopParent;
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type Parent;
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}
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pub trait Hint {
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fn hints(&self) -> HashMap<String, String>;
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}
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pub trait HierarchicalTree {
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fn build_message_tree() -> DebugMessageTree;
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fn message_handler_data_str() -> MessageData {
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MessageData::new(String::new(), Vec::new(), "")
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}
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fn message_handler_str() -> MessageData {
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MessageData::new(String::new(), Vec::new(), "")
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}
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fn path() -> &'static str {
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""
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}
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}
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