Class UnaryPrecedenceOperatorStaticSemantics

Namespace

RDCore.SDK.Semantics.Static.Operators

Assembly

RDCore.SDK.dll

MS-VBAL §5.6.6 Parenthesized Expressions (static semantics), for the parentheses around an operand of an operator: the "__p()_op" precedence operator (RD-VBAL §5.6.6), which groups the operand.

public sealed record UnaryPrecedenceOperatorStaticSemantics : StaticSemantics, IStaticSemantics, IEquatable<StaticSemantics>, IEquatable<UnaryPrecedenceOperatorStaticSemantics>

Inheritance

object

StaticSemantics

UnaryPrecedenceOperatorStaticSemantics

Implements

IStaticSemantics

IEquatable<StaticSemantics>

IEquatable<UnaryPrecedenceOperatorStaticSemantics>

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Remarks

"The declared type of a parenthesized expression is that of the enclosed expression", and it "evaluates to the simple data value of its enclosed expression": an object in parentheses is its default member's value, even as an operand of an operator that takes an object - (o) Is Nothing tests what o's default member returns, and ((o)) reads it twice (MS-VBA, recorded in Excel). The operand is evaluated as a value before this rule is asked for its declared type, which is that value's.

What sets the operator apart from the "__c()_op" let-coercion operator the same parentheses are anywhere else (UnaryLetCoerceOperatorStaticSemantics) is where it is written, and so what it means to the code that reads it: these parentheses group; the others make a value of what would otherwise be a variable.

Constructors

UnaryPrecedenceOperatorStaticSemantics()

MS-VBAL §5.6.6 Parenthesized Expressions (static semantics), for the parentheses around an operand of an operator: the "__p()_op" precedence operator (RD-VBAL §5.6.6), which groups the operand.

public UnaryPrecedenceOperatorStaticSemantics()

Remarks

"The declared type of a parenthesized expression is that of the enclosed expression", and it "evaluates to the simple data value of its enclosed expression": an object in parentheses is its default member's value, even as an operand of an operator that takes an object - (o) Is Nothing tests what o's default member returns, and ((o)) reads it twice (MS-VBA, recorded in Excel). The operand is evaluated as a value before this rule is asked for its declared type, which is that value's.

What sets the operator apart from the "__c()_op" let-coercion operator the same parentheses are anywhere else (UnaryLetCoerceOperatorStaticSemantics) is where it is written, and so what it means to the code that reads it: these parentheses group; the others make a value of what would otherwise be a variable.

Methods

DetermineDeclaredType(StaticEvaluationContext, ExpressionNode, params VBType[])

The declared type of the enclosed expression's value.

public override StaticSemanticsEvaluationResult DetermineDeclaredType(StaticEvaluationContext context, ExpressionNode expression, params VBType[] operandDeclaredTypes)

Parameters

context StaticEvaluationContext

The compile-time context the expression is evaluated against.

expression ExpressionNode

The parenthesized expression.

operandDeclaredTypes VBType[]

The declared type of the enclosed expression's value.

Returns

StaticSemanticsEvaluationResult