Cast to number of try catch block (TryNumber)¶

Type	Scope	Severity	Activated by default	Minutes to fix	Tags
`Code smell`	`BSL` `OS`	`Major`	`Yes`	`2`	`standard`

Description¶

It is incorrect to use exceptions to cast a value to a type. For such operations, it is necessary to use the capabilities of the TypeDescription object.

Examples¶

Incorrect:

Try
 NumberDaysAllowance = Number(Value);
Raise
 NumberDaysAllowance = 0; // default value
EndTry;

Correct:

TypeDescription = New TypeDescription("Number");
NumberDaysAllowance = TypeDescription.CastValue(Value);

Sources¶

Catching Exceptions in Code (RU)

Snippets¶

Diagnostic ignorance in code¶

// BSLLS:TryNumber-off
// BSLLS:TryNumber-on

Parameter for config¶

"TryNumber": false