org.apache.flex.abc

Class ABCEmitter

java.lang.Object

org.apache.flex.abc.ABCEmitter

All Implemented Interfaces:

IABCVisitor, IVisitor

public final class ABCEmitter
extends Object
implements IABCVisitor

The ABCEmitter is an IABCVisitor that collects information about the ABC and emits it as a byte array.

Constructor Summary

Constructors

Constructor and Description
ABCEmitter() Construct a new ABCEmitter, using the default diagnostics interface which ignores diagnostics.
ABCEmitter(IDiagnosticsVisitor diagnosticsVisitor) Construct a new ABCEmitter using the specified diagnostics interface.

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	emit() Emit bytecode.
void	setAllowBadJumps(boolean b) Allow invalid jump instructions for legacy ABCs.
static int	sizeOfU30(int v)
void	visit(int majorVersion, int minorVersion)
IClassVisitor	visitClass(InstanceInfo iinfo, ClassInfo cinfo) Visit a class.
void	visitEnd() Indicates that no further method calls will be made on this visitor instance.
IMethodVisitor	visitMethod(MethodInfo minfo) Visit a method.
void	visitPooledDouble(Double d) Visit a pooled double value.
void	visitPooledInt(Integer i) Visit a pooled integer value.
void	visitPooledMetadata(Metadata md) Visit a pooled metadata value.
void	visitPooledName(Name n) Visit a pooled name value.
void	visitPooledNamespace(Namespace ns) Visit a pooled namespace value.
void	visitPooledNsSet(Nsset nss) Visit a pooled namespace set value.
void	visitPooledString(String s) Visit a pooled string value.
void	visitPooledUInt(Long l) Visit a pooled unsigned integer value.
IScriptVisitor	visitScript() Visit a script.

Methods inherited from class java.lang.Object

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

Constructor Detail

ABCEmitter

public ABCEmitter()

Construct a new ABCEmitter, using the default diagnostics interface which ignores diagnostics.

ABCEmitter

public ABCEmitter(IDiagnosticsVisitor diagnosticsVisitor)

Construct a new ABCEmitter using the specified diagnostics interface.

Parameters:

diagnosticsVisitor - - a sink for diagnostics.

Method Detail

emit

public byte[] emit()
            throws Exception

Emit bytecode.

Returns:

the ABC bytecode corresponding to the ABC structures visited by this emitter or its subsidiary visitors.

Throws:

Exception - if the emitter is unable to generate valid bytecode.

visit

public void visit(int majorVersion,
         int minorVersion)

Specified by:

visit in interface IABCVisitor

visitEnd

public void visitEnd()

Description copied from interface: IVisitor

Indicates that no further method calls will be made on this visitor instance. Interfaces that derive from this interface add more specific meaning to this method.

Specified by:

visitEnd in interface IVisitor

visitClass

public IClassVisitor visitClass(InstanceInfo iinfo,
                       ClassInfo cinfo)

Description copied from interface: IABCVisitor

Visit a class.

Specified by:

visitClass in interface IABCVisitor

Parameters:

iinfo - - the class' instance info.

cinfo - - the class' class info.

Returns:

the class' visitor. May be null if the class is not to be processed.

visitScript

public IScriptVisitor visitScript()

Description copied from interface: IABCVisitor

Visit a script.

Specified by:

visitScript in interface IABCVisitor

Returns:

the script's visitor. May be null if the script is not to be processed.

visitMethod

public IMethodVisitor visitMethod(MethodInfo minfo)

Description copied from interface: IABCVisitor

Visit a method.

Specified by:

visitMethod in interface IABCVisitor

Parameters:

minfo - - the Method's method info.

Returns:

the method body visitor. May be null if the method is not to be processed.

visitPooledDouble

public void visitPooledDouble(Double d)

Description copied from interface: IABCVisitor

Visit a pooled double value.

Specified by:

visitPooledDouble in interface IABCVisitor

visitPooledInt

public void visitPooledInt(Integer i)

Description copied from interface: IABCVisitor

Visit a pooled integer value.

Specified by:

visitPooledInt in interface IABCVisitor

visitPooledMetadata

public void visitPooledMetadata(Metadata md)

Description copied from interface: IABCVisitor

Visit a pooled metadata value.

Specified by:

visitPooledMetadata in interface IABCVisitor

visitPooledName

public void visitPooledName(Name n)

Description copied from interface: IABCVisitor

Visit a pooled name value.

Specified by:

visitPooledName in interface IABCVisitor

visitPooledNamespace

public void visitPooledNamespace(Namespace ns)

Description copied from interface: IABCVisitor

Visit a pooled namespace value.

Specified by:

visitPooledNamespace in interface IABCVisitor

visitPooledNsSet

public void visitPooledNsSet(Nsset nss)

Description copied from interface: IABCVisitor

Visit a pooled namespace set value.

Specified by:

visitPooledNsSet in interface IABCVisitor

visitPooledString

public void visitPooledString(String s)

Description copied from interface: IABCVisitor

Visit a pooled string value.

Specified by:

visitPooledString in interface IABCVisitor

visitPooledUInt

public void visitPooledUInt(Long l)

Description copied from interface: IABCVisitor

Visit a pooled unsigned integer value.

Specified by:

visitPooledUInt in interface IABCVisitor

sizeOfU30

public static int sizeOfU30(int v)

setAllowBadJumps

public void setAllowBadJumps(boolean b)

Allow invalid jump instructions for legacy ABCs.

Parameters:

b - - true if the caller wishes to allow bad jumps.