VC: update docs

This commit is contained in:
2026-06-28 22:45:01 +02:00
parent 1c36dc9c9d
commit af517f7cce
11 changed files with 265 additions and 175 deletions
+12 -12
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@@ -4,16 +4,16 @@ description: Defining shared behavior and contracts with Mist's signature ergono
icon: Sparkles
---
Traits in Mist define a set of methods that a type must implement, facilitating polymorphism and shared behavior. Method signatures use the `fn` keyword with `*self` for the instance parameter.
Traits in Mist define a set of methods that a type must implement, facilitating polymorphism and shared behavior. Method signatures use C-style syntax with `&self` for the instance parameter.
## Defining a Trait
A trait lists method signatures using `fn`, with `*self` as the instance parameter and the return type after the parameter list.
A trait lists method signatures using return-type-first syntax, with `&self` as the instance parameter.
```mist
pub trait Drawable {
fn draw(*self);
fn metadata(*self) *str;
void draw(&self);
str& metadata(&self);
}
```
@@ -23,11 +23,11 @@ Use `impl Trait for Type` to provide implementations:
```mist
impl Drawable for Task {
fn draw(*self) {
void draw(&self) {
println!("Drawing task: {}", self.name);
}
fn metadata(*self) *str {
str& metadata(&self) {
self.name
}
}
@@ -39,9 +39,9 @@ Traits can provide default behavior for methods that implementing types may over
```mist
pub trait Identifiable {
fn get_id(*self) u32;
u32 get_id(&self);
fn is_valid(*self) bool {
bool is_valid(&self) {
self.get_id() > 0
}
}
@@ -53,18 +53,18 @@ A trait can require another trait using the colon `:` syntax:
```mist
pub trait Speak {
fn speak(*self) String;
String speak(&self);
}
pub trait Greet : Speak {
fn greet(*self) String;
String greet(&self);
}
```
## Key Characteristics
- **`fn` Signatures**: Method signatures use `fn`, consistent with free functions.
- **Explicit Context**: Methods use `*self` as the first parameter, mapping directly to Rust's reference rules.
- **C-Style Signatures**: Return type before name — no `fn` keyword.
- **Explicit Context**: Methods use `&self` as the first parameter, mapping directly to Rust's reference rules.
- **Default Methods**: Traits can provide default implementations.
- **Super-traits**: Colon syntax for expressing trait requirements.
- **Static Dispatch**: By default, Mist traits leverage Rust's zero-cost generics and monomorphization.