Java Doc for CSTNode.java in  » Scripting » groovy-1.0 » org » codehaus » groovy » syntax » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Scripting » groovy 1.0 » org.codehaus.groovy.syntax   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.codehaus.groovy.syntax.CSTNode All known Subclasses:   org.codehaus.groovy.syntax.Reduction,  org.codehaus.groovy.syntax.Token, CSTNode abstract public class CSTNode (Code) An abstract base class for nodes in the concrete syntax tree that is the result of parsing. Note that the CSTNode is inextricably linked with the Token in that every CSTNode has a Token as it's root. See Also:   antlr.Parser See Also:   Token See Also:   org.codehaus.groovy.syntax.Reduction See Also:   org.codehaus.groovy.syntax.Types author:    bob mcwhirter author:    Chris Poirier version:    $Id: CSTNode.java 4032 2006-08-30 07:18:49Z mguillem $ Method Summary public  CSTNode add(CSTNode element)      Adds an element to the node. public  void addChildrenOf(CSTNode of)      Adds all children of the specified node to this one. abstract public  Reduction asReduction()      Creates a Reduction from this node. public  boolean canMean(int type)      Returns true if the node can be coerced to the specified type. public  int children()      Returns the number of non-root elements in the node. abstract public  CSTNode get(int index)      Returns the specified element, or null. public  CSTNode get(int index, boolean safe)      Returns the specified element, or Token.NULL if safe is set and the specified element is null (or doesn't exist). public  String getDescription()      Returns a description of the node. public  int getMeaning()      Returns the meaning of this node. public  int getMeaningAs(int[] types)      Returns the first matching meaning of the specified types. abstract public  Token getRoot()      Returns the root of the node. public  Token getRoot(boolean safe)      Returns the root of the node, the Token that indicates it's type. public  String getRootText()      Returns the text of the root. public  int getStartColumn()      Returns the starting column of the node. public  int getStartLine()      Returns the starting line of the node. public  int getType()      Returns the actual type of the node. public  boolean hasChildren()      Returns true if the node has any non-root elements. public  boolean isA(int type)      Returns true if the node's meaning matches the specified type. public  boolean isAllOf(int[] types)      Returns true if the node's meaning matches all of the specified types. public  boolean isAnExpression()      Returns true if the node is a complete expression. public  boolean isEmpty()      Returns true if the node is completely empty (no root, even). public  boolean isOneOf(int[] types)      Returns true if the node's meaning matches any of the specified types. public  void markAsExpression()      Marks the node a complete expression.  boolean matches(int type)      Returns true if the node matches the specified type.  boolean matches(int type, int child1)      Returns true if the node and it's first child match the specified types.  boolean matches(int type, int child1, int child2)      Returns true if the node and it's first and second child match the specified types.  boolean matches(int type, int child1, int child2, int child3)      Returns true if the node and it's first three children match the specified types.  boolean matches(int type, int child1, int child2, int child3, int child4)      Returns true if the node an it's first four children match the specified types. public  CSTNode set(int index, CSTNode element)      Sets an element node in at the specified index. public  CSTNode setMeaning(int meaning)      Sets the meaning for this node (and it's root Token). abstract public  int size()      Returns the number of elements in the node (including root). public  String toString()      Formats the node as a String and returns it. public  void write(PrintWriter writer)      Formats the node and writes it to the specified Writer. protected  void write(PrintWriter writer, String indent)      Formats the node and writes it to the specified Writer. Method Detail add public CSTNode add(CSTNode element)(Code) Adds an element to the node. Returns the element for convenience. Not all nodes support this operation! addChildrenOf public void addChildrenOf(CSTNode of)(Code) Adds all children of the specified node to this one. Not all nodes support this operation! asReduction abstract public Reduction asReduction()(Code) Creates a Reduction from this node. Returns self if the node is already a Reduction. canMean public boolean canMean(int type)(Code) Returns true if the node can be coerced to the specified type. children public int children()(Code) Returns the number of non-root elements in the node. get abstract public CSTNode get(int index)(Code) Returns the specified element, or null. get public CSTNode get(int index, boolean safe)(Code) Returns the specified element, or Token.NULL if safe is set and the specified element is null (or doesn't exist). getDescription public String getDescription()(Code) Returns a description of the node. getMeaning public int getMeaning()(Code) Returns the meaning of this node. If the node isEmpty(), returns the type of Token.NULL. getMeaningAs public int getMeaningAs(int[] types)(Code) Returns the first matching meaning of the specified types. Returns Types.UNKNOWN if there are no matches. getRoot abstract public Token getRoot()(Code) Returns the root of the node. By convention, all nodes have a Token as the first element (or root), which indicates the type of the node. May return null if the node isEmpty(). getRoot public Token getRoot(boolean safe)(Code) Returns the root of the node, the Token that indicates it's type. Returns a Token.NULL if safe and the actual root is null. getRootText public String getRootText()(Code) Returns the text of the root. Uses getRoot(true) to get the root, so you will only receive null in return if the root token returns it. getStartColumn public int getStartColumn()(Code) Returns the starting column of the node. Returns -1 if not known. getStartLine public int getStartLine()(Code) Returns the starting line of the node. Returns -1 if not known. getType public int getType()(Code) Returns the actual type of the node. If the node isEmpty(), returns the type of Token.NULL. hasChildren public boolean hasChildren()(Code) Returns true if the node has any non-root elements. isA public boolean isA(int type)(Code) Returns true if the node's meaning matches the specified type. isAllOf public boolean isAllOf(int[] types)(Code) Returns true if the node's meaning matches all of the specified types. isAnExpression public boolean isAnExpression()(Code) Returns true if the node is a complete expression. isEmpty public boolean isEmpty()(Code) Returns true if the node is completely empty (no root, even). isOneOf public boolean isOneOf(int[] types)(Code) Returns true if the node's meaning matches any of the specified types. markAsExpression public void markAsExpression()(Code) Marks the node a complete expression. Not all nodes support this operation! matches boolean matches(int type)(Code) Returns true if the node matches the specified type. Effectively a synonym for isA(). Missing nodes are Token.NULL. matches boolean matches(int type, int child1)(Code) Returns true if the node and it's first child match the specified types. Missing nodes are Token.NULL. matches boolean matches(int type, int child1, int child2)(Code) Returns true if the node and it's first and second child match the specified types. Missing nodes are Token.NULL. matches boolean matches(int type, int child1, int child2, int child3)(Code) Returns true if the node and it's first three children match the specified types. Missing nodes are Token.NULL. matches boolean matches(int type, int child1, int child2, int child3, int child4)(Code) Returns true if the node an it's first four children match the specified types. Missing nodes have type Types.NULL. set public CSTNode set(int index, CSTNode element)(Code) Sets an element node in at the specified index. Returns the element for convenience. Not all nodes support this operation! setMeaning public CSTNode setMeaning(int meaning)(Code) Sets the meaning for this node (and it's root Token). Not valid if the node isEmpty(). Returns the node, for convenience. size abstract public int size()(Code) Returns the number of elements in the node (including root). toString public String toString()(Code) Formats the node as a String and returns it. write public void write(PrintWriter writer)(Code) Formats the node and writes it to the specified Writer. write protected void write(PrintWriter writer, String indent)(Code) Formats the node and writes it to the specified Writer. The indent is prepended to each output line, and is increased for each recursion. Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)