assemblyscript/std/impl/carray.ts

30 lines
838 B
TypeScript

/// <reference path="../../assembly.d.ts" />
/** A C-compatible Array class. */
@global()
class CArray<T> {
/** Constructs a new C-Array of the specified capacity. */
constructor(capacity: usize) {
return unsafe_cast<usize,this>(Memory.allocate(capacity * sizeof<T>()));
}
/** Gets the element at the specified index using bracket notation. */
@inline()
"[]"(index: usize): T {
return load<T>(unsafe_cast<this,usize>(this) + index * sizeof<T>());
}
/** Sets the element at the specified index using bracket notation. */
@inline()
"[]="(index: usize, value: T): T {
store<T>(unsafe_cast<this,usize>(this) + index * sizeof<T>(), value);
return value;
}
/** Disposes this instance and the memory associated with it. */
dispose(): void {
Memory.dispose(unsafe_cast<this,usize>(this));
}
}