index

title: UnguardedReturn

Synopsis

A return statement occurs outside a function body.

Description

A return statement is used to return a value from a function. It is an error to use it outside a function body.

Examples

rascal>int triple(int n) { return 3 * n; }
int (int): function(|prompt:///|(0,35,<1,0>,<1,35>))
rascal>triple(5);
int: 15

Using return outside a function body gives an error:

rascal>return 3;
|prompt:///|(0,9,<1,0>,<1,9>): Return statement outside of function scope
Advice: |https://www.rascal-mpl.org/docs/Rascal/Errors/CompileTimeErrors/UnguardedReturn|
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