primitives

src/primitives.rs

@@ -0,0 +1,25 @@
+fn main() {
+    // Variables can be type annotated.
+    let logical: bool = true;
+
+    let a_float: f64 = 1.0;  // Regular annotation
+    let an_integer   = 5i32; // Suffix annotation
+
+    // Or a default will be used.
+    let default_float   = 3.0; // `f64`
+    let default_integer = 7;   // `i32`
+
+    // A type can also be inferred from context.
+    let mut inferred_type = 12; // Type i64 is inferred from another line.
+    inferred_type = 4294967296i64;
+
+    // A mutable variable's value can be changed.
+    let mut mutable = 12; // Mutable `i32`
+    mutable = 21;
+
+    // Error! The type of a variable can't be changed.
+    // mutable = true;
+
+    // Variables can be overwritten with shadowing.
+    let mutable = true;
+}