class ParseResult[+T] extends AnyRef

A base class for parser results. A result is either successful or not (failure may be fatal, i.e., an Error, or not, i.e., a Failure) On success, provides a result of type T.

attributes: sealed abstract
definition classes: Parsers


  1. AnyRef
  2. Any

Value Members

  1. def append[U >: T](a: ⇒ ParseResult[U]): ParseResult[U]

  2. def equals(arg0: Any): Boolean

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.

    The default implementations of this method is an equivalence relation:

    • It is reflexive: for any instance x of type Any, x.equals(x) should return true.
    • It is symmetric: for any instances x and y of type Any, x.equals(y) should return true if and only if y.equals(x) returns true.
    • It is transitive: for any instances x, y, and z of type AnyRef if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.

    If you override this method, you should verify that your implementation remains an equivalence relation. Additionally, when overriding this method it is often necessary to override hashCode to ensure that objects that are "equal" (o1.equals(o2) returns true) hash to the same Int (o1.hashCode.equals(o2.hashCode)).


    the object to compare against this object for equality.


    true if the receiver object is equivalent to the argument; false otherwise.

    definition classes: AnyRef ⇐ Any
  3. def flatMapWithNext[U](f: (T) ⇒ (Reader[Elem]) ⇒ ParseResult[U]): ParseResult[U]

  4. def get: T

    Returns the embedded result

    Returns the embedded result

    attributes: abstract
  5. def getOrElse[B >: T](default: ⇒ B): B

  6. def hashCode(): Int

    Returns a hash code value for the object

    Returns a hash code value for the object.

    The default hashing algorithm is platform dependent.

    Note that it is allowed for two objects to have identical hash codes (o1.hashCode.equals(o2.hashCode)) yet not be equal (o1.equals(o2) returns false). A degenerate implementation could always return 0. However, it is required that if two objects are equal (o1.equals(o2) returns true) that they have identical hash codes (o1.hashCode.equals(o2.hashCode)). Therefore, when overriding this method, be sure to verify that the behavior is consistent with the equals method.

    definition classes: AnyRef ⇐ Any
  7. def isEmpty: Boolean

  8. def map[U](f: (T) ⇒ U): ParseResult[U]

    Functional composition of ParseResults

    Functional composition of ParseResults

    attributes: abstract
  9. def mapPartial[U](f: PartialFunction[T, U], error: (T) ⇒ String): ParseResult[U]

    Partial functional composition of ParseResults

    Partial functional composition of ParseResults


    a function that takes the same argument as f' and produces an error message to explain why f' wasn't applicable (it is called when this is the case)


    if f' f is defined at the result in this ParseResult', f' applied to the result of this ParseResult', packaged up as a new ParseResult'. If f' is not defined, Failure'.

    attributes: abstract
  10. val next: Reader[Elem]

  11. val successful: Boolean

  12. def toString(): String

    Returns a string representation of the object

    Returns a string representation of the object.

    The default representation is platform dependent.

    definition classes: AnyRef ⇐ Any

Instance constructors

  1. new ParseResult()