Package com.libdbm.cel.ast

Record Class Comprehension

java.lang.Object
java.lang.Record
com.libdbm.cel.ast.Comprehension
Record Components:
variable - the name of the iteration variable
range - the expression producing the iterable range
accumulator - the accumulator variable name
initializer - the initial value of the accumulator
condition - the loop continuation condition expression
step - the expression that updates the accumulator per iteration
result - the expression that produces the final result value
All Implemented Interfaces:
Expression
public record Comprehension(String variable, Expression range, String accumulator, Expression initializer, Expression condition, Expression step, Expression result) extends Record implements Expression
Represents a comprehension expression for generating lists or maps.

A comprehension has an iteration variable and range, an accumulator variable with its initialization, a loop condition and step expression, and a final result expression. This generalizes constructs like list and map comprehensions.

  • Constructor Details

    • Comprehension

      public Comprehension(String variable, Expression range, String accumulator, Expression initializer, Expression condition, Expression step, Expression result)
      Creates an instance of a Comprehension record class.
      Parameters:
      variable - the value for the variable record component
      range - the value for the range record component
      accumulator - the value for the accumulator record component
      initializer - the value for the initializer record component
      condition - the value for the condition record component
      step - the value for the step record component
      result - the value for the result record component

  • Method Details

    • accept

      public <T> T accept(Expression.Visitor<T> visitor)
      Accepts a visitor to perform operations on this expression node.

      Invokes the appropriate visit method on the provided visitor, dispatching the visit operation to the visitor implementation that corresponds to the type of this expression node.

      Specified by:
      accept in interface Expression
      Type Parameters:
      T - the return type of the visitor's visit operations
      Parameters:
      visitor - the visitor that will operate on this expression node
      Returns:
      the result of the visitor's visit operation

    • toString

      public final String toString()
      Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.
      Specified by:
      toString in class Record
      Returns:
      a string representation of this object

    • hashCode

      public final int hashCode()
      Returns a hash code value for this object. The value is derived from the hash code of each of the record components.
      Specified by:
      hashCode in class Record
      Returns:
      a hash code value for this object

    • equals

      public final boolean equals(Object o)
      Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).
      Specified by:
      equals in class Record
      Parameters:
      o - the object with which to compare
      Returns:
      true if this object is the same as the o argument; false otherwise.

    • variable

      public String variable()
      Returns the value of the variable record component.
      Returns:
      the value of the variable record component

    • range

      public Expression range()
      Returns the value of the range record component.
      Returns:
      the value of the range record component

    • accumulator

      public String accumulator()
      Returns the value of the accumulator record component.
      Returns:
      the value of the accumulator record component

    • initializer

      public Expression initializer()
      Returns the value of the initializer record component.
      Returns:
      the value of the initializer record component

    • condition

      public Expression condition()
      Returns the value of the condition record component.
      Returns:
      the value of the condition record component

    • step

      public Expression step()
      Returns the value of the step record component.
      Returns:
      the value of the step record component

    • result

      public Expression result()
      Returns the value of the result record component.
      Returns:
      the value of the result record component