59 lines
1.2 KiB
Standard ML
Executable file
59 lines
1.2 KiB
Standard ML
Executable file
#!/usr/bin/env fun
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/*
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* This file is part of the Fun programming language.
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* https://fun-lang.xyz/
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*
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* Copyright 2025 Johannes Findeisen <you@hanez.org>
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* Licensed under the terms of the Apache-2.0 license.
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* https://opensource.org/license/apache-2-0
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*/
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/*
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* Function Definition Testing
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*
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* Covers:
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* - Basic function syntax (`def`)
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* - Handling multiple parameter types
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* - Function return value testing
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* - Function composition examples
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*/
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// Functions test: definitions, calls, parameters, locals, returns, and if/else.
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print("=== Functions test start ===")
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fun add(a, b)
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return a + b
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fun abs(x)
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if (x < 0)
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return -x
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else
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return x
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fun sum3(a, b, c)
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// local typed declaration
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number t = a + b
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return t + c
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fun id(x)
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return x
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// Calls in expressions
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print(add(2, 3)) // expect 5
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print(add(10, -3)) // expect 7
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print(abs(-7)) // expect 7
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print(abs(4)) // expect 4
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print(sum3(1, 2, 3)) // expect 6
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print(add(add(1, 2), 3)) // expect 6
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print(id(42)) // expect 42
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// Call as statement (result dApache-2.0arded)
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add(100, 23)
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// Globals interacting with functions
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number n = 5
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print(add(n, 10)) // expect 15
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print("=== Functions test end ===")
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