$(DDOC_MODULE_MEMBERS
  • interface Seq (T): SeqView!(T), Dispenser!(T);
    • $(DDOC_DECL_DD Seqs are Seqs possessing standard modification methods

    author:
    Doug Lea @version 0.93

    For an introduction to this package see Overview .

    $(DDOC_CLASS_MEMBERS

  • void addAt (int index, Iterator!(T) e);
    • Insert all elements of enumeration e at a given index, preserving their order. The index can range from 0..size() (i.e., one past the current last index). If the index is equal to size(), the elements are appended.

    @param index the index to start adding at @param e the elements to add

    Returns:


    condition:
     foreach (int i in 0 .. index-1) at(i).equals(PREV(this)at(i)); &&
 All existing elements at indices at or greater than index have their
  indices incremented by the number of elements
  traversable via e.get() &&
 The new elements are at indices index + their order in
   the enumeration's get traversal.
 !(e.more()) &&
 (version() != PREV(this).version()) == PREV(e).more()


    Throws:
    IllegalElementException if !canInclude some element of e; this may or may not nullify the effect of insertions of other elements.

    Throws:
    NoSuchElementException if index is not in range 0..size()

    Throws:
    CorruptedIteratorException is propagated if raised; this may or may not nullify the effects of insertions of other elements.

  • void addAt (int index, T element);
    • Insert element at indicated index. The index can range from 0..size() (i.e., one past the current last index). If the index is equal to size(), the element is appended as the new last element. @param index the index to add at @param element the element to add

    Returns:


    condition:
     size() == PREV(this).size()+1 &&
 at(index).equals(element) &&
 foreach (int i in 0 .. index-1)      get(i).equals(PREV(this).get(i))
 foreach (int i in index+1..size()-1) get(i).equals(PREV(this).get(i-1))
 Version change: always


    Throws:
    NoSuchElementException if index is not in range 0..size()

    Throws:
    IllegalElementException if !canInclude(element)

  • void replaceAt (int index, T element);
    • $(DDOC_DECL_DD replace element at indicated index with new value @param index the index at which to replace value @param element the new value

    Returns:


    condition:
     size() == PREV(this).size() &&
 at(index).equals(element) &&
 no spurious effects
 Version change <-- !element.equals(PREV(this).get(index)
                    (but MAY change even if equal).
    ) Throws:
    NoSuchElementException if index is not in range 0..size()-1

    Throws:
    IllegalElementException if !canInclude(element)



  • void opIndexAssign (T element, int index);
    • replace element at indicated index with new value @param element the new value @param index the index at which to replace value

    Returns:


    condition:
     size() == PREV(this).size() &&
 at(index).equals(element) &&
 no spurious effects
 Version change <-- !element.equals(PREV(this).get(index)
                    (but MAY change even if equal).
    ) Throws:
    NoSuchElementException if index is not in range 0..size()-1

    Throws:
    IllegalElementException if !canInclude(element)



  • void removeAt (int index);
    • Remove element at indicated index. All elements to the right have their indices decremented by one. @param index the index of the element to remove

    Returns:


    condition:
     size() = PREV(this).size()-1 &&
 foreach (int i in 0..index-1)      get(i).equals(PREV(this).get(i)); &&
 foreach (int i in index..size()-1) get(i).equals(PREV(this).get(i+1));
 Version change: always


    Throws:
    NoSuchElementException if index is not in range 0..size()-1

  • void prepend (T element);
    • Insert element at front of the sequence. Behaviorally equivalent to insert(0, element) @param element the element to add

    Throws:
    IllegalElementException if !canInclude(element)

  • void replaceHead (T element);
    • replace element at front of the sequence with new value. Behaviorally equivalent to replace(0, element);

  • void removeHead ();
    • Remove the leftmost element. Behaviorally equivalent to remove(0);

  • void append (T element);
    • insert element at end of the sequence Behaviorally equivalent to insert(size(), element) @param element the element to add

    Throws:
    IllegalElementException if !canInclude(element)

  • void replaceTail (T element);
    • replace element at end of the sequence with new value Behaviorally equivalent to replace(size()-1, element);

  • void removeTail ();
    • Remove the rightmost element. Behaviorally equivalent to remove(size()-1);

    Throws:
    NoSuchElementException if isEmpty

  • void removeRange (int fromIndex, int toIndex);
    • Remove the elements from fromIndex to toIndex, inclusive. No effect if fromIndex > toIndex. Behaviorally equivalent to 
     for (int i = fromIndex; i <= toIndex; ++i) remove(fromIndex);
    @param index the index of the first element to remove @param index the index of the last element to remove

    Returns:


    condition:
     let n = max(0, toIndex - fromIndex + 1 in
  size() == PREV(this).size() - 1 &&
  for (int i in 0 .. fromIndex - 1)     get(i).equals(PREV(this).get(i)) &&
  for (int i in fromIndex .. size()- 1) get(i).equals(PREV(this).get(i+n)
  Version change iff n > 0
    ) Throws:
    NoSuchElementException if fromIndex or toIndex is not in range 0..size()-1

    )

  • void prepend (Iterator!(T) e);
    • Prepend all elements of enumeration e, preserving their order. Behaviorally equivalent to addElementsAt(0, e) @param e the elements to add

  • void append (Iterator!(T) e);
    • Append all elements of enumeration e, preserving their order. Behaviorally equivalent to addElementsAt(size(), e) @param e the elements to add

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