SyntheticCompositeNode (Xtext Runtime Bundle 2.9.2 API)

java.lang.Object
- org.eclipse.xtext.nodemodel.impl.SyntheticCompositeNode

All Implemented Interfaces:

Iterable<INode>, BidiIterable<INode>, BidiTreeIterable<INode>, ICompositeNode, INode
```
public class SyntheticCompositeNode
extends Object
implements ICompositeNode, BidiTreeIterable<INode>
```
Unfolds the array of grammar elements that is associated with a composite node.

Author:

Sebastian Zarnekow - Initial contribution and API

Constructor Summary

Constructors
Modifier Constructor and Description

protected SyntheticCompositeNode(CompositeNode delegate, int grammarElementIdx)

Constructors
Modifier	Constructor and Description
`protected`	`SyntheticCompositeNode(CompositeNode delegate, int grammarElementIdx)`

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`equals(Object obj)`
`BidiTreeIterable<INode>`	`getAsTreeIterable()` Returns a tree iterable that uses this node as its origin and root instance.
`BidiIterable<INode>`	`getChildren()` Returns an iterable that provides access to the children of the composite node.
`int`	`getEndLine()` Returns the line number relative to the complete input where the node ends (one based, excluding hidden tokens).
`int`	`getEndOffset()` Returns the end offset (exclusive) of this node excluding hidden tokens.
`INode`	`getFirstChild()` Returns the first child of this node.
`org.eclipse.emf.ecore.EObject`	`getGrammarElement()` Returns the grammar element that created this node.
`INode`	`getLastChild()` Returns the last child of this node.
`Iterable<ILeafNode>`	`getLeafNodes()` Returns an iterable for all contained leaf nodes.
`int`	`getLength()` Returns the length of this node excluding hidden tokens.
`int`	`getLookAhead()` Return the number of tokens that the parser had to peek before it could decide to create this node.
`INode`	`getNextSibling()` Returns the next sibling or `null`.
`int`	`getOffset()` Returns the offset of this node excluding hidden tokens.
`ICompositeNode`	`getParent()` Returns the parent of the node or `null` if and only if this is the root node.
`INode`	`getPreviousSibling()` Returns the previous sibling or `null`.
`ICompositeNode`	`getRootNode()` Returns the root node of this parse tree.
`org.eclipse.emf.ecore.EObject`	`getSemanticElement()` Returns the nearest semantic object that is associated with the subtree of this node.
`int`	`getStartLine()` Returns the line number relative to the complete input where the node begins (one based, excluding hidden tokens).
`SyntaxErrorMessage`	`getSyntaxErrorMessage()` Returns the directly associated syntax error message or `null` if none.
`String`	`getText()` Returns the parsed text that is covered by this node (including hidden tokens).
`ITextRegion`	`getTextRegion()` Returns a `region` for this node excluding hidden tokens: an `offset` of this region is the same as an `offset` of this node; and a `length` of this region is the same as a `length` of this node.
`ITextRegionWithLineInformation`	`getTextRegionWithLineInformation()` Returns a `region with line information` for this node excluding hidden tokens: an `offset` of this region is the same as an `offset` of this node; a `length` of this region is the same as a `length` of this node; a `line number` of this region is the same as a `start line` of this node; an `end line number` of this region is the same as an `end line` of this node.
`int`	`getTotalEndLine()` Returns the line number relative to the complete input where the node ends (one based, including hidden tokens).
`int`	`getTotalEndOffset()` Returns the end offset (exclusive) of this node including hidden tokens.
`int`	`getTotalLength()` Returns the length of this node including hidden tokens.
`int`	`getTotalOffset()` Returns the offset of this node including hidden tokens.
`int`	`getTotalStartLine()` Returns the line number relative to the complete input where the node begins (one based, including hidden tokens).
`ITextRegion`	`getTotalTextRegion()` Returns a `region` for this node including hidden tokens: an `offset` of this region is the same as a `total offset` of this node; and a `length` of this region is the same as a `total length` of this node.
`ITextRegionWithLineInformation`	`getTotalTextRegionWithLineInformation()` Returns a `region with line information` for this node including hidden tokens: an `offset` of this region is the same as a `total offset` of this node; a `length` of this region is the same as a `total length` of this node; a `line number` of this region is the same as a `total start line` of this node; an `end line number` of this region is the same as a `total end line` of this node.
`boolean`	`hasChildren()` Returns `true` if this node has any children.
`boolean`	`hasDirectSemanticElement()` Returns `true` if this node as a directly associated semantic element.
`int`	`hashCode()`
`boolean`	`hasNextSibling()` Returns `true` if this node is not the last child of its parent.
`boolean`	`hasPreviousSibling()` Returns `true` if this node is not the first child of its parent.
`boolean`	`hasSiblings()` Returns `true` if this node has any siblings.
`BidiTreeIterator<INode>`	`iterator()` Returns a tree iterator that can be used forwards and backwards.
`BidiTreeIterable<INode>`	`reverse()` Returns a reverse version of this iterable that can be used forwards and backwards.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - SyntheticCompositeNode
```
protected SyntheticCompositeNode(CompositeNode delegate,
                      int grammarElementIdx)
```
- Method Detail
  - getParent
```
public ICompositeNode getParent()
```
    Description copied from interface: INode
    
    Returns the parent of the node or null if and only if this is the root node.
    
    Specified by:
    
    getParent in interface INode
    
    Returns:
    the parent of this node or null.
  - hasSiblings
```
public boolean hasSiblings()
```
    Description copied from interface: INode
    
    Returns true if this node has any siblings.
    
    Specified by:
    
    hasSiblings in interface INode
    
    Returns:
    true if this node has any siblings.
    See Also:
    INode.hasPreviousSibling(), INode.hasNextSibling()
  - hasPreviousSibling
```
public boolean hasPreviousSibling()
```
    Description copied from interface: INode
    
    Returns true if this node is not the first child of its parent.
    
    Specified by:
    
    hasPreviousSibling in interface INode
    
    Returns:
    true if this node has a previous sibling thus INode.getPreviousSibling() will not return null.
  - hasNextSibling
```
public boolean hasNextSibling()
```
    Description copied from interface: INode
    
    Returns true if this node is not the last child of its parent.
    
    Specified by:
    
    hasNextSibling in interface INode
    
    Returns:
    true if this node has a next sibling thus INode.getNextSibling() will not return null.
  - getPreviousSibling
```
public INode getPreviousSibling()
```
    Description copied from interface: INode
    
    Returns the previous sibling or null. The result has the same parent as this node if it is not null.
    
    Specified by:
    
    getPreviousSibling in interface INode
    
    Returns:
    the previous sibling or null.
    See Also:
    INode.hasPreviousSibling(), INode.hasSiblings()
  - getNextSibling
```
public INode getNextSibling()
```
    Description copied from interface: INode
    
    Returns the next sibling or null. The result has the same parent as this node if it is not null.
    
    Specified by:
    
    getNextSibling in interface INode
    
    Returns:
    the next sibling or null.
    See Also:
    INode.hasNextSibling(), INode.hasSiblings()
  - getRootNode
```
public ICompositeNode getRootNode()
```
    Description copied from interface: INode
    
    Returns the root node of this parse tree. Will not return null in a consistent tree.
    
    Specified by:
    
    getRootNode in interface INode
    
    Returns:
    the root node of this parse tree. Will not return null in a consistent tree.
  - getTotalOffset
```
public int getTotalOffset()
```
    Description copied from interface: INode
    
    Returns the offset of this node including hidden tokens.
    
    Specified by:
    
    getTotalOffset in interface INode
    
    Returns:
    the offset of this node including hidden tokens.
  - getOffset
```
public int getOffset()
```
    Description copied from interface: INode
    
    Returns the offset of this node excluding hidden tokens. If this node is a hidden leaf node or a composite node that does only contain hidden leaf nodes, the total offset is returned.
    
    Specified by:
    
    getOffset in interface INode
    
    Returns:
    the offset of this node excluding hidden tokens.
  - getLength
```
public int getLength()
```
    Description copied from interface: INode
    
    Returns the length of this node excluding hidden tokens. If this node is a hidden leaf node, the total length is returned.
    
    Specified by:
    
    getLength in interface INode
    
    Returns:
    the length of this node excluding hidden tokens.
  - getTotalStartLine
```
public int getTotalStartLine()
```
    Description copied from interface: INode
    
    Returns the line number relative to the complete input where the node begins (one based, including hidden tokens).
    
    Specified by:
    
    getTotalStartLine in interface INode
    
    Returns:
    the line number relative to the complete input where the node begins.
  - getEndLine
```
public int getEndLine()
```
    Description copied from interface: INode
    
    Returns the line number relative to the complete input where the node ends (one based, excluding hidden tokens).
    
    Specified by:
    
    getEndLine in interface INode
    
    Returns:
    the line number relative to the complete input where the node ends.
  - getStartLine
```
public int getStartLine()
```
    Description copied from interface: INode
    
    Returns the line number relative to the complete input where the node begins (one based, excluding hidden tokens).
    
    Specified by:
    
    getStartLine in interface INode
    
    Returns:
    the line number relative to the complete input where the node begins.
  - getTotalEndLine
```
public int getTotalEndLine()
```
    Description copied from interface: INode
    
    Returns the line number relative to the complete input where the node ends (one based, including hidden tokens).
    
    Specified by:
    
    getTotalEndLine in interface INode
    
    Returns:
    the line number relative to the complete input where the node ends.
  - getTotalLength
```
public int getTotalLength()
```
    Description copied from interface: INode
    
    Returns the length of this node including hidden tokens.
    
    Specified by:
    
    getTotalLength in interface INode
    
    Returns:
    the length of this node including hidden tokens.
  - getTotalEndOffset
```
public int getTotalEndOffset()
```
    Description copied from interface: INode
    
    Returns the end offset (exclusive) of this node including hidden tokens. Yields the same result as offset + length but may be more efficient.
    
    Specified by:
    
    getTotalEndOffset in interface INode
    
    Returns:
    the end offset (exclusive) of this node including hidden tokens.
  - getText
```
public String getText()
```
    Description copied from interface: INode
    
    Returns the parsed text that is covered by this node (including hidden tokens). The result is never null but may be empty.
    
    Specified by:
    
    getText in interface INode
    
    Returns:
    the parsed text that is covered by this node (including hidden tokens). Never null.
  - getGrammarElement
```
public org.eclipse.emf.ecore.EObject getGrammarElement()
```
    Description copied from interface: INode
    
    Returns the grammar element that created this node. May return null in case of unrecoverable syntax errors. This happens usually when a keyword occurred at an unexpected offset.
    
    Specified by:
    
    getGrammarElement in interface INode
    
    Returns:
    the grammar element that created this node. May return null.
  - getSemanticElement
```
public org.eclipse.emf.ecore.EObject getSemanticElement()
```
    Description copied from interface: INode
    
    Returns the nearest semantic object that is associated with the subtree of this node. May return null whenever the parser refused to create any objects due to unrecoverable errors. Implementations will usually walk up the node tree to find the semantic object. As the node model structure does not reflect the containment structure of the semantic object graph, clients should usually use the utilities in NodeModelUtils to obtain the semantic instance.
    
    Specified by:
    
    getSemanticElement in interface INode
    
    Returns:
    the nearest semantic object that is associated with the subtree of this node. May return null.
    See Also:
    INode.hasDirectSemanticElement(), NodeModelUtils.findActualSemanticObjectFor(INode)
  - hasDirectSemanticElement
```
public boolean hasDirectSemanticElement()
```
    Description copied from interface: INode
    
    Returns true if this node as a directly associated semantic element.
    
    Specified by:
    
    hasDirectSemanticElement in interface INode
    
    Returns:
    true if this node as a directly associated semantic element.
    See Also:
    INode.getSemanticElement()
  - getSyntaxErrorMessage
```
public SyntaxErrorMessage getSyntaxErrorMessage()
```
    Description copied from interface: INode
    
    Returns the directly associated syntax error message or null if none.
    
    Specified by:
    
    getSyntaxErrorMessage in interface INode
    
    Returns:
    the directly associated syntax error message. May return null.
  - getAsTreeIterable
```
public BidiTreeIterable<INode> getAsTreeIterable()
```
    Description copied from interface: INode
    
    Returns a tree iterable that uses this node as its origin and root instance. Its iterator will not return any siblings of this root. However, the first element returned by BidiTreeIterator.previous() or BidiTreeIterator.next() will be this instance.
    
    Specified by:
    
    getAsTreeIterable in interface INode
    
    Returns:
    a tree iterable where this node represents the root instance.
  - iterator
```
public BidiTreeIterator<INode> iterator()
```
    Description copied from interface: BidiTreeIterable
    
    Returns a tree iterator that can be used forwards and backwards.
    
    Specified by:
    
    iterator in interface Iterable<INode>
    
    Specified by:
    
    iterator in interface BidiIterable<INode>
    
    Specified by:
    
    iterator in interface BidiTreeIterable<INode>
    
    Returns:
    an iterator. Never returns null.
  - getLeafNodes
```
public Iterable<ILeafNode> getLeafNodes()
```
    Description copied from interface: INode
    
    Returns an iterable for all contained leaf nodes. Never null.
    
    Specified by:
    
    getLeafNodes in interface INode
    
    Returns:
    an iterable for all contained leaf nodes. Never null.
  - reverse
```
public BidiTreeIterable<INode> reverse()
```
    Description copied from interface: BidiTreeIterable
    Returns a reverse version of this iterable that can be used forwards and backwards. In other words, an iterator provided by the reverse iterable will delegate its hasNext() and next() invocations to BidiIterator.hasPrevious() and BidiIterator.previous() respectively.
    
    This allows clients to iterate backwards by means of the enhanced for-loop:
```
 for(T t: iterable.reverse()) {
   // do something with t
 }
 
```
    Specified by:
    
    reverse in interface BidiIterable<INode>
    
    Specified by:
    
    reverse in interface BidiTreeIterable<INode>
    
    Returns:
    the reversed iterable. Never returns null.
  - getChildren
```
public BidiIterable<INode> getChildren()
```
    Description copied from interface: ICompositeNode
    
    Returns an iterable that provides access to the children of the composite node. Will never return null but may be empty.
    
    Specified by:
    
    getChildren in interface ICompositeNode
    
    Returns:
    an iterable that provides access to the children of the composite node.
    See Also:
    ICompositeNode.hasChildren(), ICompositeNode.getFirstChild(), ICompositeNode.getLastChild()
  - hasChildren
```
public boolean hasChildren()
```
    Description copied from interface: ICompositeNode
    
    Returns true if this node has any children.
    
    Specified by:
    
    hasChildren in interface ICompositeNode
    
    Returns:
    true if this node has any children.
    See Also:
    ICompositeNode.getChildren(), ICompositeNode.getFirstChild(), ICompositeNode.getLastChild()
  - getFirstChild
```
public INode getFirstChild()
```
    Description copied from interface: ICompositeNode
    
    Returns the first child of this node. May be null or may be the same as the last child.
    
    Specified by:
    
    getFirstChild in interface ICompositeNode
    
    Returns:
    the first child of this node if any.
    See Also:
    ICompositeNode.hasChildren(), ICompositeNode.getChildren()
  - getLastChild
```
public INode getLastChild()
```
    Description copied from interface: ICompositeNode
    
    Returns the last child of this node. May be null or may be the same as the first child.
    
    Specified by:
    
    getLastChild in interface ICompositeNode
    
    Returns:
    the last child of this node if any.
    See Also:
    ICompositeNode.hasChildren(), ICompositeNode.getChildren()
  - getLookAhead
```
public int getLookAhead()
```
    Description copied from interface: ICompositeNode
    
    Return the number of tokens that the parser had to peek before it could decide to create this node. Never negative. Clients will usually not have to deal with ICompositeNode.getLookAhead().
    
    Specified by:
    
    getLookAhead in interface ICompositeNode
    
    Returns:
    the number of tokens that the parser had to peek before it could decide to create this node.
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - getTextRegion
```
public ITextRegion getTextRegion()
```
    Description copied from interface: INode
    Returns a region for this node excluding hidden tokens:
    - an offset of this region is the same as an offset of this node;
    - and a length of this region is the same as a length of this node.
    This method could be more efficient than calculating an offset and a length of this node separately.
    Specified by:
    
    getTextRegion in interface INode
    
    Returns:
    a region for this node excluding hidden tokens
    Since:
    
    2.5
  - getTotalTextRegion
```
public ITextRegion getTotalTextRegion()
```
    Description copied from interface: INode
    Returns a region for this node including hidden tokens:
    - an offset of this region is the same as a total offset of this node;
    - and a length of this region is the same as a total length of this node.
    This method could be more efficient than calculating a total offset and a total length of this node separately.
    Specified by:
    
    getTotalTextRegion in interface INode
    
    Returns:
    a region for this node including hidden tokens
    Since:
    
    2.5
  - getTextRegionWithLineInformation
```
public ITextRegionWithLineInformation getTextRegionWithLineInformation()
```
    Description copied from interface: INode
    Returns a region with line information for this node excluding hidden tokens:
    - an offset of this region is the same as an offset of this node;
    - a length of this region is the same as a length of this node;
    - a line number of this region is the same as a start line of this node;
    - an end line number of this region is the same as an end line of this node.
    A line number and an end line number of the returned region are one based.
    
    This method could be more efficient than calculating an offset, a length, a start line and an end line of this node separately.
    Specified by:
    
    getTextRegionWithLineInformation in interface INode
    
    Returns:
    a region with line information for this node excluding hidden tokens
    Since:
    
    2.5
  - getTotalTextRegionWithLineInformation
```
public ITextRegionWithLineInformation getTotalTextRegionWithLineInformation()
```
    Description copied from interface: INode
    Returns a region with line information for this node including hidden tokens:
    - an offset of this region is the same as a total offset of this node;
    - a length of this region is the same as a total length of this node;
    - a line number of this region is the same as a total start line of this node;
    - an end line number of this region is the same as a total end line of this node.
    A line number and an end line number of the returned region are one based.
    
    This method could be more efficient than calculating a total offset, a total length, a total start line and a total end line of this node separately.
    Specified by:
    
    getTotalTextRegionWithLineInformation in interface INode
    
    Returns:
    a region with line information for this node including hidden tokens
    Since:
    
    2.5
  - getEndOffset
```
public int getEndOffset()
```
    Description copied from interface: INode
    
    Returns the end offset (exclusive) of this node excluding hidden tokens. Yields the same result as offset + length but may be more efficient.
    
    Specified by:
    
    getEndOffset in interface INode
    
    Returns:
    the end offset (exclusive) of this node excluding hidden tokens.
    Since:
    
    2.5

Class SyntheticCompositeNode

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

SyntheticCompositeNode

Method Detail

getParent

hasSiblings

hasPreviousSibling

hasNextSibling

getPreviousSibling

getNextSibling

getRootNode

getTotalOffset

getOffset

getLength

getTotalStartLine

getEndLine

getStartLine

getTotalEndLine

getTotalLength

getTotalEndOffset

getText

getGrammarElement

getSemanticElement

hasDirectSemanticElement

getSyntaxErrorMessage

getAsTreeIterable

iterator

getLeafNodes

reverse

getChildren

hasChildren

getFirstChild

getLastChild

getLookAhead

equals

hashCode

getTextRegion

getTotalTextRegion

getTextRegionWithLineInformation

getTotalTextRegionWithLineInformation

getEndOffset