Macro impl_component 

macro_rules! impl_component {
    ($struct_name:ident, $symbol:expr, $storage:ident, { $( $field:ident : $ftype:tt ),* $(,)? }) => { ... };
}

Implement ComponentTrait for a struct with fixed-size fields.

Generates serialization/deserialization using big-endian byte encoding.

Supported field types

i32 (4 bytes), u32 (4 bytes), i64 (8 bytes), u64 (8 bytes), i128 (16 bytes), u128 (16 bytes), u8 (1 byte), bool (1 byte), bytes32 (32 bytes — use for BytesN<32> fields)

Note

The symbol name must be at most 9 characters (Soroban symbol_short! limit).

Example

use cougr_core::impl_component;
use soroban_sdk::contracttype;

#[contracttype]
#[derive(Clone, Debug)]
pub struct Position {
    pub x: i32,
    pub y: i32,
}

impl_component!(Position, "position", Table, { x: i32, y: i32 });