Language Overview

Sun uses a C-style syntax with explicit type annotations and modern features. Functions are declared with the function keyword, types follow variable names after a colon, and blocks are delimited by curly braces. The language prioritizes readability and unambiguity — there are no implicit conversions, no operator overloading, and no macros.

Identifier Naming

function _helper() i32 { ... }  // ❌ ERROR: reserved identifier
var _count: i32 = 0;            // ❌ ERROR: reserved identifier

function helper() i32 { ... }   // ✓ OK
var count: i32 = 0;             // ✓ OK

Primitive Types

Sun provides the following primitive types:

Variable Declaration

Variables are declared with var and require explicit type annotations:

var x: i32 = 42;
var name: ptr<i8> = "Sun";
var flag: bool = true;

Comments

Sun supports single-line comments:

// This is a comment
var x: i32 = 42;  // Inline comment