com.google.gwt.dev.shell.rewrite

Class RewriteSingleJsoImplDispatches

java.lang.Object

com.google.gwt.dev.asm.ClassVisitor

com.google.gwt.dev.shell.rewrite.RewriteSingleJsoImplDispatches

public class RewriteSingleJsoImplDispatches
extends ClassVisitor

Effects the renaming of @SingleJsoImpl methods from their original name to their mangled name. Let us call the original method an "unmangled method" and the new method a "mangled method". There are three steps in this process:

1. Within @SingleJsoImpl interfaces rename all unmangled methods to become mangled methods.
2. Within non-JSO classes containing a concrete implementation of an unmangled method, add a mangled method which is implemented as a simple trampoline to the unmangled method. (We don't do this in JSO classes here because the one-and-only trampoline lives in JavaScriptObject$ and is emitted in WriteJsoImpl).
3. Update all call sites targeting unmangled methods to target mangled methods instead, provided the caller is binding to the interface rather than a concrete type.

Field Summary

Fields inherited from class com.google.gwt.dev.asm.ClassVisitor

api, cv

Constructor Summary

Constructors

Constructor and Description
RewriteSingleJsoImplDispatches(ClassVisitor v, TypeOracle typeOracle, HostedModeClassRewriter.SingleJsoImplData jsoData)

Method Summary

Modifier and Type	Method and Description
void	visit(int version, int access, String name, String signature, String superName, String[] interfaces) Visits the header of the class.
void	visitEnd() Visits the end of the class.
MethodVisitor	visitMethod(int access, String name, String desc, String signature, String[] exceptions) Visits a method of the class.

Methods inherited from class com.google.gwt.dev.asm.ClassVisitor

visitAnnotation, visitAttribute, visitField, visitInnerClass, visitOuterClass, visitSource

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, toString

Constructor Detail

RewriteSingleJsoImplDispatches

public RewriteSingleJsoImplDispatches(ClassVisitor v,
                                      TypeOracle typeOracle,
                                      HostedModeClassRewriter.SingleJsoImplData jsoData)

Method Detail

visit

public void visit(int version,
                  int access,
                  String name,
                  String signature,
                  String superName,
                  String[] interfaces)

Description copied from class: ClassVisitor

Visits the header of the class.

Overrides:

visit in class ClassVisitor

Parameters:

version - the class version.

access - the class's access flags (see Opcodes). This parameter also indicates if the class is deprecated.

name - the internal name of the class (see getInternalName).

signature - the signature of this class. May be null if the class is not a generic one, and does not extend or implement generic classes or interfaces.

superName - the internal of name of the super class (see getInternalName). For interfaces, the super class is Object. May be null, but only for the Object class.

interfaces - the internal names of the class's interfaces (see getInternalName). May be null.

visitEnd

public void visitEnd()

Description copied from class: ClassVisitor

Visits the end of the class. This method, which is the last one to be called, is used to inform the visitor that all the fields and methods of the class have been visited.

Overrides:

visitEnd in class ClassVisitor

visitMethod

public MethodVisitor visitMethod(int access,
                                 String name,
                                 String desc,
                                 String signature,
                                 String[] exceptions)

Description copied from class: ClassVisitor

Visits a method of the class. This method must return a new MethodVisitor instance (or null) each time it is called, i.e., it should not return a previously returned visitor.

Overrides:

visitMethod in class ClassVisitor

Parameters:

access - the method's access flags (see Opcodes). This parameter also indicates if the method is synthetic and/or deprecated.

name - the method's name.

desc - the method's descriptor (see Type).

signature - the method's signature. May be null if the method parameters, return type and exceptions do not use generic types.

exceptions - the internal names of the method's exception classes (see getInternalName). May be null.

Returns:

an object to visit the byte code of the method, or null if this class visitor is not interested in visiting the code of this method.