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Initializes a new instance of the UnaryExpression class.
public UnaryExpression(IExpressionEngine engine, Token token, IExpression expr)
| Type | Name | Description |
|---|---|---|
| IExpressionEngine | engine | the engine that initializes this expression. |
| Token | token | the expression tree node. |
| IExpression | expr | the IExpression for calculating a unary operation. |