23 lines
805 B
Markdown
23 lines
805 B
Markdown
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Function Overloading
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===================
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{{#include ../links.md}}
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Functions defined in script can be _overloaded_ by _arity_ (i.e. they are resolved purely upon the function's _name_
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and _number_ of parameters, but not parameter _types_ since all parameters are the same type - [`Dynamic`]).
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New definitions _overwrite_ previous definitions of the same name and number of parameters.
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```rust
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fn foo(x,y,z) { print("Three!!! " + x + "," + y + "," + z) }
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fn foo(x) { print("One! " + x) }
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fn foo(x,y) { print("Two! " + x + "," + y) }
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fn foo() { print("None.") }
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fn foo(x) { print("HA! NEW ONE! " + x) } // overwrites previous definition
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foo(1,2,3); // prints "Three!!! 1,2,3"
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foo(42); // prints "HA! NEW ONE! 42"
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foo(1,2); // prints "Two!! 1,2"
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foo(); // prints "None."
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```
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