Ternary and nullcheck operators

Last updated 3 months ago

Ternary operator ? :
Hades supports inline if (or ternary operator) statements. They work as such:
condition ? statementIfConditionIsTrue : statementIfConditionIsFalse
Example
with math from std:math
​
func sinc(dec x)
    put x != 0.0 ? math->sin(x)/x : 1.0
end
Null-conditional operator ::
The null conditional operator checks if the left side of the operator evaluates to null. If it does, the statement on the right side of the operator is executed and returned.
Example
with exceptions from std:exceptions
with console from std:io
​
var doStuff = { x =>
    x :: raise exceptions->ArgumentNullException("{} is null"->format(nameof(x)))
}
​
try
    doStuff(null)
catch(default e)
    console->out:e->message
end
​
//Output: x is null
​
func add(a,b) requires (a :: false) and (b :: false)
    put a + b
end

Exception handling

Pipelines

Ternary and nullcheck operators

Ternary operator `? :`

Example

Null-conditional operator `::`

Example