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Classes are a real type class now and some fixes. (0.10.0)

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This commit is contained in:
Johannes Findeisen 2025-09-28 23:56:45 +02:00
commit 5d3cfd9f65
12 changed files with 203 additions and 41 deletions
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examples/types_overview.fun Executable file
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#!/usr/bin/env fun
/*
* This file is part of the Fun programming language.
* https://hanez.org/project/fun/
*
* Copyright 2025 Johannes Findeisen <you@hanez.org>
* Licensed under the terms of the ISC license.
* https://opensource.org/license/isc-license-txt
*/
print("=== Dynamic (untyped) ===")
x = 123
print(typeof(x)) // -> "Number"
x = "ok"
print(typeof(x)) // -> "String"
print("")
print("=== Numbers and integer subtypes ===")
number n = 42
print(typeof(n)) // -> "Number"
print(n) // -> 42
int8 s8 = 130 // clamps to 127
print(s8) // -> 127
uint16 u16 = 70000 // clamps to 65535
print(u16) // -> 65535
byte b = 0xFF // 255
print(b) // -> 255
boolean flag = 2 // clamps to 1
print(flag) // -> 1
print("")
print("=== Strings ===")
string s = "hello"
print(typeof(s)) // -> "String"
print(s) // -> "hello"
print("")
print("=== Nil ===")
nil nn = nil
print(typeof(nn)) // -> "Nil"
print(nn) // -> nil
print("")
print("=== Arrays ===")
arr = [1, 2, 3]
print(typeof(arr)) // -> "Array"
print(len(arr)) // -> 3
print(arr[1]) // -> 2
print(arr[0:2]) // -> [1, 2]
print("")
print("=== Maps ===")
m = { "k": "v", "n": 1 }
print(typeof(m)) // -> "Map"
print(m["k"]) // -> "v"
print("")
print("=== Functions ===")
fun add(a, b)
return a + b
print(typeof(add)) // -> "Function"
print(add(5, 7)) // -> 12
print("")
print("=== Classes and Class-typed variables ===")
class Person(number age, string name)
// methods must declare 'this' as first parameter
fun toString(this)
// typeof(instance) will call this and return it
return "Class"
Class p = Person(33, "Jo")
print(typeof(p)) // -> "Class"
// p = "nope" // Uncomment to see TypeError: expected Class
print("")
print("=== Done ===")