openjava.ptree
Class ReturnStatement
java.lang.Object
|
+--openjava.ptree.ParseTreeObject
|
+--openjava.ptree.NonLeaf
|
+--openjava.ptree.ReturnStatement
- All Implemented Interfaces:
- java.lang.Cloneable, ParseTree, Statement
- public class ReturnStatement
- extends NonLeaf
- implements Statement, ParseTree
The ReturnStatement
class represents
a return statement node of parse tree.
- See Also:
ParseTree
,
NonLeaf
,
Statement
Method Summary |
void |
accept(ParseTreeVisitor v)
Accepts a ParseTreeVisitor object as the role of a
Visitor in the Visitor pattern, as the role of an Element in the
Visitor pattern. |
Expression |
getExpression()
Gets the returned expression by this statement. |
void |
setExpression(Expression expr)
Sets the returned expression by this statement. |
void |
writeCode()
Writes the code this parse-tree presents for. |
Methods inherited from class openjava.ptree.NonLeaf |
childrenAccept, elementAt, equals, getComment, getContents, getLength, makeRecursiveCopy, replaceChildWith, set, set, set, set, set, set, set, set, set, setComment, setElementAt |
Methods inherited from class openjava.ptree.ParseTreeObject |
clone, eq, eq, equal, flushPrintWriter, getDebugFlag, getNest, getObjectID, getParent, getPrintWriter, getTab, hashCode, lastObjectID, makeCopy, popNest, popPrintWriter, pushNest, pushPrintWriter, replace, setDebugFlag, setDebugLevel, setNest, setParent, setPrintStream, setTab, toFlattenString, toString, writeDebug, writeDebugL, writeDebugLln, writeDebugln, writeDebugLR, writeDebugR, writeDebugRln, writeTab |
Methods inherited from class java.lang.Object |
equals, finalize, getClass, notify, notifyAll, wait, wait, wait |
ReturnStatement
public ReturnStatement(Expression expr)
- Allocates a new object.
- Parameters:
expr
- the expression to be returned by this statement.
If this is null, nothing to be returned.
ReturnStatement
public ReturnStatement()
- Allocates a new object.
writeCode
public void writeCode()
- Description copied from class:
NonLeaf
- Writes the code this parse-tree presents for.
- Specified by:
writeCode
in interface ParseTree
- Overrides:
writeCode
in class NonLeaf
getExpression
public Expression getExpression()
- Gets the returned expression by this statement.
- Returns:
- the expression to be returned by this statement.
setExpression
public void setExpression(Expression expr)
- Sets the returned expression by this statement.
- Parameters:
expr
- the expression to be returned by this statement.
accept
public void accept(ParseTreeVisitor v)
throws ParseTreeException
- Description copied from interface:
ParseTree
- Accepts a
ParseTreeVisitor
object as the role of a
Visitor in the Visitor pattern, as the role of an Element in the
Visitor pattern.
This invoke an appropriate visit()
method on the
accepted visitor.
- Specified by:
accept
in interface ParseTree
- Overrides:
accept
in class ParseTreeObject
- Following copied from interface:
openjava.ptree.ParseTree
- Parameters:
visitor
- a visitor