EvaluateExpressionDelegate Delegate
Definition
Important
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Delegate to evaluate an expression.
public delegate (object value, string error) EvaluateExpressionDelegate(Expression expression, IMemory state, Options options);type EvaluateExpressionDelegate = delegate of Expression * IMemory * Options -> ValueTuple<obj, string>Public Delegate Function EvaluateExpressionDelegate(expression As Expression, state As IMemory, options As Options) As ValueTuple(Of Object, String) Parameters
- expression
- Expression
Expression to evaluate.
- state
- IMemory
Global state information.
- options
- Options
Options for the evaluation.
Return Value
Value and error string that is non-null if there is an error.
Remarks
Evaluators should verify runtime arguments when appropriate and return an error rather than throw exceptions if possible.