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Methods

All methods in Minilang are multimethods, that is they use the runtime types of all arguments to determine which function to call.

Methods are written as :mini:`:name` (or :mini:`:"name"` if name contains non-alphanumeric characters). Methods also act as atoms or symbols, two methods with the same name are identically equal. Infix operators such as :mini:`+`, :mini:`*`, etc, are equivalent to methods with the same name (:mini:`:"+"`, :mini:`:"*"`, etc).

If no suitable method is found for a specific combination of arguments, an error is raised. Methods can be defined using the :mini:`meth` keyword:

.. parser-rule-diagram:: 'meth' term '(' (
   ( identifier ':' expression ( ',' identifier ':' expression )* ( ',' '[' identifier ']' )? ( ',' '{' identifier '}' )? ) |
   ( '[' identifier ']' ( ',' '{' identifier '}' )? ) |
   ( '{' identifier '}' )
   )? ')' ':='? expression


print('5 * \"word\" = {5 * "word"}\n')

MethodError: no method found for *(int32, string)
   <console>:1
meth *(Count: integer, String: string) sum(1 .. Count;) String

print('5 * \"word\" = {5 * "word"}\n')

5 * "word" = wordwordwordwordword