structs
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@@ -18,7 +18,6 @@ i32 add(i32 a, i32 b) {
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void log_status(str* message) {
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println!("{}", message);
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}
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```
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## Visibility & Exports
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@@ -29,7 +28,6 @@ Functions are private to their module by default. The `public` modifier exports
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public i32 get_version() {
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return 1;
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}
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```
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## Mutable Parameters
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@@ -40,7 +38,6 @@ Parameters follow Rust’s ownership rules but use Mist’s local variable synta
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void update_score(i32 mut current_score, i32 bonus) {
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current_score = current_score + bonus;
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}
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```
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## Generics & Lifetimes
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@@ -52,7 +49,6 @@ public str'a* choose_longer<'a, T: Display>(str'a* s1, str'a* s2, T meta) {
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println!("Metadata: {}", meta);
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return if (s1.len() > s2.len()) { s1 } else { s2 };
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}
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```
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## Attributes & Metadata
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@@ -64,7 +60,6 @@ Metadata is applied via the `#[attr]` syntax directly above the declaration for
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public bool is_active(u32 id) {
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return id > 0;
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}
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```
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## Key Characteristics
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@@ -0,0 +1,64 @@
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---
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title: Structs
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description: Data modeling using Mist's type-first convention.
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icon: Form
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---
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Structs in Mist follow the same structural logic as Rust, but apply the language-wide `type name` declaration style and allow for comma-separated field grouping.
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## Basic Syntax
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A struct is defined by its name followed by a block of fields. Each field follows the Mist convention of placing the type before the identifier, separated by commas.
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```rust
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public struct Task {
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public String name,
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public TaskState state,
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public i32 executions,
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}
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```
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## Visibility
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Use the `public` modifier to make the struct or its individual fields accessible from other modules.
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```cpp
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public struct NetworkNode {
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public u32 id,
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str* address,
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}
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```
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## Instantiation
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Structs are instantiated using the standard brace syntax.
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```cpp
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var task = Task {
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name: "Initialize".to_string(),
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state: TaskState::Pending,
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executions: 0,
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};
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```
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## Generics & Lifetimes
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Generics and lifetimes are declared in angle brackets after the struct name. Lifetimes are associated with the reference/pointer type within the field declarations.
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```cpp
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public struct Buffer<'a, T> {
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public T'a* data,
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public usize len,
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}
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```
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## Key Characteristics
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- **Type-First Declaration**: Fields use the `type name` order to match function parameters and variable declarations.
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- **Comma-Separated Members**: Fields are separated by commas, maintaining a clean and consistent delimiter style.
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- **Rust Compatibility**: Maps 1:1 to Rust structs, ensuring zero-cost abstraction and full ecosystem interoperability.
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- **Direct Visibility**: The `public` keyword replaces `pub` for a more consistent modifier language across the codebase.
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