org.glassfish.pfl.dynamic.codegen.impl

Class BlockStatement

java.lang.Object

org.glassfish.pfl.dynamic.codegen.impl.AttributedObjectBase

org.glassfish.pfl.dynamic.codegen.impl.NodeBase

org.glassfish.pfl.dynamic.codegen.impl.StatementBase

org.glassfish.pfl.dynamic.codegen.impl.BlockStatement

All Implemented Interfaces:

AttributedObject, Node, Statement, CopyInterceptor

Direct Known Subclasses:

CaseBranch

public class BlockStatement
extends StatementBase

Main factory for creating statements. Represents a block of statements which also defines a scope for local variable declarations.

Author:

Ken Cavanaugh

Method Summary

Methods

Modifier and Type	Method and Description
void	accept(Visitor visitor) Accept the visitor and allow it to perform actions on this Node.
void	addAssign(Expression left, Expression right)
void	addBreak() Add a break statement to this BlockStatement.
Expression	addDefinition(Type type, String ident, Expression value)
void	addExpression(Expression expr)
IfStatement	addIf(Expression cond)
void	addReturn() Add an empty return to this BlockStatement.
void	addReturn(Expression expr) Add a return with an expression to this BlockStatement.
SwitchStatement	addSwitch(Expression value)
void	addThrow(Expression expr)
TryStatement	addTry()
WhileStatement	addWhile(Expression expr)
List<Statement>	body() Return the list of Statements in this BlockStatement.
ExpressionFactory	exprFactory() Return the ExpressionFactory that must be used to create any expressions occuring either in expressions added to the body, or in other statements immediately contained in this BlockStatement.
Variable	getVar(String ident) Look up the ident to see if it has an associated Variable in this block.
boolean	isEmpty() Return true iff this BlockStatement contains no local variables or statements.

Methods inherited from class org.glassfish.pfl.dynamic.codegen.impl.NodeBase

copy, copy, getAncestor, id, parent, parent, postCopy, preCopy, toString

Methods inherited from class org.glassfish.pfl.dynamic.codegen.impl.AttributedObjectBase

attributes, get, set

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.glassfish.pfl.dynamic.codegen.impl.Node

copy, copy, getAncestor, id, parent, parent

Methods inherited from interface org.glassfish.pfl.dynamic.codegen.impl.AttributedObject

attributes, get, set

Method Detail

getVar

public Variable getVar(String ident)

Look up the ident to see if it has an associated Variable in this block.

isEmpty

public boolean isEmpty()

Return true iff this BlockStatement contains no local variables or statements.

body

public List<Statement> body()

Return the list of Statements in this BlockStatement.

exprFactory

public ExpressionFactory exprFactory()

Return the ExpressionFactory that must be used to create any expressions occuring either in expressions added to the body, or in other statements immediately contained in this BlockStatement.

addBreak

public void addBreak()

Add a break statement to this BlockStatement.

addReturn

public void addReturn()

Add an empty return to this BlockStatement. The enclosing MethodGenerator must have a void return type.

addReturn

public void addReturn(Expression expr)

Add a return with an expression to this BlockStatement. The enclosing MethodGenerator must have a return type that is assignment compatible with the type of expr.

addIf

public IfStatement addIf(Expression cond)

addTry

public TryStatement addTry()

addThrow

public void addThrow(Expression expr)

addSwitch

public SwitchStatement addSwitch(Expression value)

addWhile

public WhileStatement addWhile(Expression expr)

addExpression

public void addExpression(Expression expr)

addAssign

public void addAssign(Expression left,
             Expression right)

addDefinition

public Expression addDefinition(Type type,
                       String ident,
                       Expression value)

accept

public void accept(Visitor visitor)

Description copied from interface: Node

Accept the visitor and allow it to perform actions on this Node.

Specified by:

accept in interface Node

Overrides:

accept in class NodeBase