PTPrefixExpression

This type is a class for model objects.

A one operand operator, where the operator comes before the operand, e.g. - (x+3). In AST, even -3 is modeled as a PrefixExpression of operator "-" and expression of NumberLiteral(3). But we optimize this away and just use a NumberLiteral(-3) directly instead.

Package: instantiation
Supertype: PTExpression

Classifier ID:  -1
Instance class name:  * Unspecified *
Instance class:  * Unspecified *

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Attributes Summary
operator : PTPrefixOperator	The operator of this expression.
expression : PTExpression @	The expression that the operator is applied to.

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Attribute Details

operator  -  The operator of this expression.
    Data Type: PTPrefixOperator
    Default value:  unspecified
    Allowed values:
        0 - PLUS
        1 - MINUS
        2 - COMPLEMENT
        3 - NOT
    Required:  false
    Changeable:  true
    Unsettable:  false
    Many:  false
    Ordered:  true
    Lower bound:  0
    Upper bound:  1
    Unique:  true
    Derived:  false
    Transient:  false
    Volatile:  false

expression  -  The expression that the operator is applied to.
    Reference Type: PTExpression @
    Containment:  true
    Container:  false
    Required:  false
    Changeable:  true
    Unsettable:  false
    Many:  false
    Ordered:  true
    Lower bound:  0
    Upper bound:  1
    Unique:  true
    Derived:  false
    Transient:  false
    Volatile:  false

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