else and else-if support.

examples/expressions_test.fun

@@ -0,0 +1,41 @@
+#!/usr/bin/env fun
+
+// Expressions test: arithmetic, precedence, comparisons, logical ops, unary, parentheses.
+
+print("=== Expressions test start ===")
+
+// Typed declarations
+number a = 2
+number b = 3
+number n = 10
+string s = "Hello, world!"
+boolean flag = true
+
+// Arithmetic and precedence
+number sum = a + b * 5 - 1
+print(sum)           // expect 2 + 3*5 - 1 = 16
+
+number calc = (a + b) * (b - a + 1)
+print(calc)          // expect (2+3)*(3-2+1) = 5*2 = 10
+
+// Unary operators
+number neg = -n
+print(neg)           // expect -10
+
+number modv = n % 3
+print(modv)          // expect 1
+
+// Booleans and logical ops
+print(!false)        // expect 1 (true)
+print(true && false) // expect 0 (false)
+print(true || false) // expect 1 (true)
+
+// Comparisons and strings
+print(n > 5)         // expect 1
+print(s != "")       // expect 1
+
+// Mixed logical/relational
+print(a < b && n >= 10)          // expect 1
+print((a + b) == 5 && flag)      // expect 1
+
+print("=== Expressions test end ===")