v0.9.4

Language

• Add to support arbitrary parameters.

  fn foo(a: int, b: int, items: ..string) {
  }

• Add top support iterate for channel types.

  use std.io;
  
  let ch = channel::<int>();
  spawn {
    defer {
      ch.close();
    }
    for i in 0..10 {
      ch.send(i);
    }
  }
  
  for n in ch {
    io.println(n);
  }

• Add to support impl for.

  interface Foo {
    fn foo(self);
  }
  
  struct User {}
  
  impl for User {
    fn foo(self) {
      io.println("foo");
    }
  }

• Add support lazy initialization.

  let s: string;
  
  s = "hello";

• Add char type.

  let c: char = 'a';

• Add to support while let.

  while (let v = ch.recv()) {
    io.println(v);
  }

• Now can iterate over a string.

  let s = "hello";
  for c in s {
    io.println(c);
  }

• Improve string performance.

• Improve string interpolation for support ${x:?} to print debug format.

• Improve implicit conversion to support.

  // Option type
  let a: int? = 10;
  assert_eq a!, 10;
  
  let a: int??? = 10;
  let b: int? = a;
  assert_eq b!, 10;
  
  let a: int? = 10;
  let b: int??? = a;
  assert_eq b!!!, 10;
  
  // Union type
  let a: int | string = "abc";
  assert_eq a.(string), "abc";
  
  // Interface
  let a: ToString = 10;
  assert_eq a.to_string(), "10";

• Fix the break in do, catch block can't break the outside loop bug.

Stdlib

• Add time.sleep method.

  use std.time;
  
  // sleep 1 second
  time.sleep(1);

• Improve std.io.print to support arbitrary argument.

  use std.io;
  
  io.println("hello", "world");

• Update http Headers apppend, set method, not allows nil value.

• Update http set_basic_auth the username not allows nil.

Pkg

The pkg is used to manage packages that many split out of Navi in the future.

• Add sql module to support SQlite, MySQL, PostgreSQL, etc.

  use sql.Connection;
  
  
  struct User {
    id: int,
    name: string,
  }
  
  const conn = try! Connection.connect("sqlite::memory:");
  try! conn.execute("CREATE TABLE users (id INTEGER PRIMARY KEY, name TEXT)");
  
  try! conn.execute("INSERT INTO users (name) VALUES (?)", "Jason Lee");
  
  let users = try! conn.query("SELECT * FROM users").scan::<User>();

• Add markdown module to support markdown render to HTML.

  use markdown;
  
  let html = markdown.to_html("# Hello, World!");

Tools

• Fix Navi LSP to better autocomplete and documentations support.
• Add cache support in Navi LSP for better performance.
• Add format support in Navi LSP.
• fmt: insert a new line after std uses.
• fmt: sort outer-layer use { ... } statements
• New tree-sitter-navi, tree-sitter-navi-stream project for tree-sitter support.
• Add Zed extension support, current only syntax highlight support.