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UnitializedVariable

rascal-0.40.17

Synopsis​

Use of a variable that has not been initialized.

Description​

A variable has to be initialized before it can be used. This error is generated when an uninitialzed variable is used.

Remedy: assign a value to the variable before its use:

Examples​

Using the uninitialized variable x gives an error:

rascal>x
|prompt:///|(0,1,<1,0>,<1,1>): Undeclared variable: x
Advice: |https://www.rascal-mpl.org/docs/Rascal/Errors/CompileTimeErrors/UndeclaredVariable|
ok

This can be avoided by first initializing x by an Assignment:

rascal>x = 3;
int: 3
rascal>x + 5;
int: 8

Or it can be avoided by declaring x using a Variable:

rascal>int x = 3;
int: 3
rascal>x + 5;
int: 8