Keyword auto-imported

new

Source: compiler/src/builtin_docs/keywords.md

Constructs a class instance: new Class(args).

Arguments fill the fields in declaration order. A class invariant is checked after construction. readonly new Class(…) builds a sealed instance.

class Point {
    pub x: int,
    pub y: int,
}

fn main() {
    let p = new Point(3, 4);
    let sum = p.x + p.y;
}

See also#

  • fn: Declares a function, a method, or (written in an expression) an anonymous function.
  • let: Declares a mutable local variable.
  • const: Declares a binding that cannot be reassigned: a local, a module constant, or a class field that is set only by new.
  • static: Declares a module-level or class-level slot shared by the whole program, or a method without self.
  • readonly: A read-only view of a value: nothing reachable through it can be changed.
  • if: Runs a block when a bool condition is true.
  • else: Introduces the branch of an if that runs when its condition is false (or its pattern does not match).
  • while: Repeats a block while a bool condition is true.
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