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Class jas.ClassEnv

java.lang.Object
   |
   +----jas.ClassEnv

public class ClassEnv

extends Object

implements RuntimeConstants

ClassEnv()

addCPItem(CP)

This is the method to add CPE items to a class.

addField(Var)

addGenericAttr(GenericAttr)

Add a generic attribute to the class file.

addInterface(CP)

Add this CP to the list of interfaces supposedly implemented by this class.

addInterface(CP[])

Add this to the list of interfaces supposedly implemented by this class.

addMethod(short, String, String, CodeAttr, ExceptAttr)

Here is where code gets added to a class.

addMethod(Method)

This allows more control over generating CP's for methods if you feel so inclined.

setClass(CP)

Define this class to have this name.

setClassAccess(short)

Set the class access for this class.

setSource(SourceAttr)

Add an attribute specifying the name of the source file for the class

setSource(String)

Add an attribute specifying the name of the source file for the clas.

setSuperClass(CP)

Define this class to have this superclass

write(DataOutputStream)

Write the contents of the class.

  public ClassEnv()

  public void setClass(CP name)

Define this class to have this name.

Parameters:

name - CPE representing name for class. (This is usually a ClassCP)

  public void setSuperClass(CP name)

Define this class to have this superclass

Parameters:

name - CPE representing name for class. (This is usually a ClassCP)

  public void setClassAccess(short access)

Set the class access for this class. Constants understood by this are present along with the java Beta distribution.

Parameters:

access - number representing access permissions for the entire class.

See Also:

RuntimeConstants

  public void addInterface(CP ifc)

Add this CP to the list of interfaces supposedly implemented by this class. Note that the CP ought to be a ClassCP to make sense to the VM.

  public void addInterface(CP ilist[])

Add this to the list of interfaces supposedly implemented by this class. Note that each CP is usually a ClassCP.

Parameters:

ilist - An array of CP items representing the interfaces implemented by this class.

  public void addField(Var v)

  public void write(DataOutputStream out) throws IOException, jasError

Write the contents of the class.

Parameters:

out - DataOutputStream on which the contents are written.

  public void addCPItem(CP cp)

This is the method to add CPE items to a class. CPE items for a class are "uniquefied". Ie, if you add a CPE items whose contents already exist in the class, only one entry is finally written out when the class is written.

Parameters:

cp - Item to be added to the class

  public void addMethod(short acc,
                        String name,
                        String sig,
                        CodeAttr code,
                        ExceptAttr ex)

Here is where code gets added to a class.

Parameters:

acc - method_access permissions, expressed with some combination of the values defined in RuntimeConstants

name - Name of the method

sig - Signature for the method

code - Actual code for the method

ex - Any exception attribute to be associated with method

  public void setSource(SourceAttr source)

Add an attribute specifying the name of the source file for the class

Parameters:

source - SourceAttribute specifying the source for the file

  public void setSource(String source)

Add an attribute specifying the name of the source file for the clas.

Parameters:

source - String with the name of the class

  public void addGenericAttr(GenericAttr g)

Add a generic attribute to the class file. A generic attribute contains a stream of uninterpreted bytes which is ignored by the VM (as long as its name doesn't conflict with other names for attributes that are understood by the VM)

  public void addMethod(Method m)

This allows more control over generating CP's for methods if you feel so inclined.

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