2021-05-01, 07:09 PM
2021-04-28: Special Tags
YSI introduces two special tags for functions. These can be used to optimise code in some instances:
When using y_master, this will actually make the generated code faster, and give an error if you put ?return? in your function and try use that return value. Technically you can still have ?return?, you just can?t use the value.
This is used extensively with YSI keywords - timer, global, inline, and remotefunc all rely on string: to generate code that uses "s" instead of "a" (arrays must be followed by a length parameter, strings needn?t be).
YSI introduces two special tags for functions. These can be used to optimise code in some instances:
- void - People familiar with ?C? might recognise this as ?no return?, i.e. the function doesn?t return anything:
Quote:
void:Func()
{
____// No return.
}
When using y_master, this will actually make the generated code faster, and give an error if you put ?return? in your function and try use that return value. Technically you can still have ?return?, you just can?t use the value.
- string - This is used all over YSI, not just as a return type. Anything with a ?string:? tag is just a normal string, and entirely compatible with regular strings, but there are times when it is useful for the compiler to know the difference between an array and a string:
Quote:
string:Func(string:a[], b[])
{
____// Function that takes a string (a) and an array (b), and returns a string.
}
This is used extensively with YSI keywords - timer, global, inline, and remotefunc all rely on string: to generate code that uses "s" instead of "a" (arrays must be followed by a length parameter, strings needn?t be).