There are many different abstract classes used to represent the different types of
elements in an expression. These classes are derived from the non-generic version of
Expression. The following table examines some abstract classes derived from the
Expression class.
Class Description Parameters
lambda expression This is the bridge between
the generic Expression
class and non-generic
Expression class.
Its main properties are body and
parameters.
Body??”represents the body of the
expression.
Parameters??”represents the list of
parameters it uses.
constant
expression
This represents the constant
values that appear in the
expression.
Value is it's main property, which
returns the constant value in the
expression.
parameter
expression
Represents a named
parameter expression. Values
must be passed to parameter
to evaluate the expression.
Name is the property of the
parameter expression to represent the
name of the parameter.
unary expression Represents an expression
that has the unary operator.
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