Examples of org.objectweb.asm.MethodVisitor

org.objectweb.asm.MethodVisitor
A visitor to visit a Java method. The methods of this interface must be called in the following order: [ visitAnnotationDefault ] ( visitAnnotation | visitParameterAnnotation | visitAttribute )* [ visitCode ( visitXInsn | visitLabel | visitTryCatchBlock | visitLocalVariable | visitLineNumber)* visitMaxs ] visitEnd. In addition, the visitXInsn and visitLabel methods must be called in the sequential order of the bytecode instructions of the visited code, and the visitLocalVariable and visitLineNumber methods must be called after the labels passed as arguments have been visited. @author Eric Bruneton

                Class[] descriptor = new Class[] {arg1, arg2, arg3};
                if (c == null) {
                    Class[] signature = new Class[] { RubyKernel.IRUBY_OBJECT, arg1, arg2, arg3, Block.class };
                    Class ret = getReturnClass(method, signature);
                    ClassWriter cw = createCtor(mnamePath);
                    MethodVisitor mv = startCallS(cw);
                    
                    loadArguments(mv, METHOD_ARGS_INDEX, 3, descriptor);
                    mv.visitVarInsn(ALOAD, 3);
                    mv.visitMethodInsn(INVOKESTATIC, typePath, method, sig(ret, signature));
                    mv.visitInsn(ARETURN);
                    mv.visitMaxs(5, 3);
                    c = endCall(cw, mv, mname);
                }
                InvocationCallback ic = (InvocationCallback) c.newInstance();
                ic.setArity(Arity.fixed(3));
                ic.setArgumentTypes(descriptor);

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            try {
                if (c == null) {
                    Class[] signature = new Class[] { RubyKernel.IRUBY_OBJECT, IRubyObject[].class, Block.class };
                    Class ret = getReturnClass(method, signature);
                    ClassWriter cw = createCtor(mnamePath);
                    MethodVisitor mv = startCallS(cw);
                    
                    mv.visitVarInsn(ALOAD, METHOD_ARGS_INDEX);
                    checkCast(mv, IRubyObject[].class);
                    mv.visitVarInsn(ALOAD, 3);
                    mv.visitMethodInsn(INVOKESTATIC, typePath, method, sig(ret, signature));
                    mv.visitInsn(ARETURN);
                    mv.visitMaxs(2, 3);
                    c = endCall(cw, mv, mname);
                }
                InvocationCallback ic = (InvocationCallback) c.newInstance();
                ic.setArity(Arity.optional());
                ic.setArgumentTypes(InvocationCallback.OPTIONAL_ARGS);

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            try {
                if (c == null) {
                    Class[] signature = new Class[] { IRubyObject[].class, Block.class };
                    Class ret = getReturnClass(method, signature);
                    ClassWriter cw = createCtor(mnamePath);
                    MethodVisitor mv = startCall(cw);
                    
                    mv.visitVarInsn(ALOAD, METHOD_ARGS_INDEX);
                    checkCast(mv, IRubyObject[].class);
                    mv.visitVarInsn(ALOAD, 3);
                    mv.visitMethodInsn(INVOKEVIRTUAL, typePath, method, sig(ret, signature));
                    mv.visitInsn(ARETURN);
                    mv.visitMaxs(2, 3);
                    c = endCall(cw, mv, mname);
                }
                InvocationCallback ic = (InvocationCallback) c.newInstance();
                ic.setArity(Arity.optional());
                ic.setArgumentTypes(InvocationCallback.OPTIONAL_ARGS);

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            Class c = tryClass(mname);
            try {
                if (c == null) {
                    Class ret = getReturnClass(method, new Class[0]);
                    ClassWriter cw = createCtorFast(mnamePath);
                    MethodVisitor mv = startCallFast(cw);


                    mv.visitMethodInsn(INVOKEVIRTUAL, typePath, method, sig(ret));
                    mv.visitInsn(ARETURN);
                    mv.visitMaxs(1, 3);
                    c = endCall(cw, mv, mname);
                }
                FastInvocationCallback ic = (FastInvocationCallback) c.newInstance();
                ic.setArity(Arity.noArguments());
                ic.setJavaName(method);

View Full Code Here

                Class[] descriptor = new Class[] { arg1 };
                if (c == null) {
                    Class[] signature = descriptor;
                    Class ret = getReturnClass(method, signature);
                    ClassWriter cw = createCtorFast(mnamePath);
                    MethodVisitor mv = startCallFast(cw);
                    
                    loadArguments(mv, METHOD_ARGS_INDEX, 1, descriptor);


                    mv.visitMethodInsn(INVOKEVIRTUAL, typePath, method, sig(ret, signature));
                    mv.visitInsn(ARETURN);
                    mv.visitMaxs(3, 3);
                    c = endCall(cw, mv, mname);
                }
                FastInvocationCallback ic = (FastInvocationCallback) c.newInstance();
                ic.setArity(Arity.singleArgument());
                ic.setArgumentTypes(descriptor);

View Full Code Here

                Class[] descriptor = new Class[] { arg1, arg2 };
                if (c == null) {
                    Class[] signature = descriptor;
                    Class ret = getReturnClass(method, signature);
                    ClassWriter cw = createCtorFast(mnamePath);
                    MethodVisitor mv = startCallFast(cw);
                    
                    loadArguments(mv, METHOD_ARGS_INDEX, 2, descriptor);


                    mv.visitMethodInsn(INVOKEVIRTUAL, typePath, method, sig(ret, signature));
                    mv.visitInsn(ARETURN);
                    mv.visitMaxs(4, 3);
                    c = endCall(cw, mv, mname);
                }
                FastInvocationCallback ic = (FastInvocationCallback) c.newInstance();
                ic.setArity(Arity.twoArguments());
                ic.setArgumentTypes(descriptor);

View Full Code Here

                Class[] descriptor = new Class[] { arg1, arg2, arg3 };
                if (c == null) {
                    Class[] signature = descriptor;
                    Class ret = getReturnClass(method, signature);
                    ClassWriter cw = createCtorFast(mnamePath);
                    MethodVisitor mv = startCallFast(cw);
                    
                    loadArguments(mv, METHOD_ARGS_INDEX, 3, descriptor);


                    mv.visitMethodInsn(INVOKEVIRTUAL, typePath, method, sig(ret, signature));
                    mv.visitInsn(ARETURN);
                    mv.visitMaxs(5, 3);
                    c = endCall(cw, mv, mname);
                }
                FastInvocationCallback ic = (FastInvocationCallback) c.newInstance();
                ic.setArity(Arity.fixed(3));
                ic.setArgumentTypes(descriptor);

View Full Code Here

            try {
                if (c == null) {
                    Class[] signature = new Class[] { RubyKernel.IRUBY_OBJECT };
                    Class ret = getReturnClass(method, signature);
                    ClassWriter cw = createCtorFast(mnamePath);
                    MethodVisitor mv = startCallSFast(cw);


                    mv.visitMethodInsn(INVOKESTATIC, typePath, method, sig(ret, signature));
                    mv.visitInsn(ARETURN);
                    mv.visitMaxs(1, 3);
                    c = endCall(cw, mv, mname);
                }
                FastInvocationCallback ic = (FastInvocationCallback) c.newInstance();
                ic.setArity(Arity.noArguments());
                ic.setJavaName(method);

View Full Code Here

                Class[] descriptor = new Class[] {arg1};
                if (c == null) {
                    Class[] signature = new Class[] { RubyKernel.IRUBY_OBJECT, arg1 };
                    Class ret = getReturnClass(method, signature);
                    ClassWriter cw = createCtorFast(mnamePath);
                    MethodVisitor mv = startCallSFast(cw);
                    
                    loadArguments(mv, METHOD_ARGS_INDEX, 1, descriptor);


                    mv.visitMethodInsn(INVOKESTATIC, typePath, method, sig(ret, signature));
                    mv.visitInsn(ARETURN);
                    mv.visitMaxs(3, 3);
                    c = endCall(cw, mv, mname);
                }
                FastInvocationCallback ic = (FastInvocationCallback) c.newInstance();
                ic.setArity(Arity.singleArgument());
                ic.setArgumentTypes(descriptor);

View Full Code Here

                Class[] descriptor = new Class[] {arg1, arg2};
                if (c == null) {
                    Class[] signature = new Class[] { RubyKernel.IRUBY_OBJECT, arg1, arg2 };
                    Class ret = getReturnClass(method, signature);
                    ClassWriter cw = createCtorFast(mnamePath);
                    MethodVisitor mv = startCallSFast(cw);
                    
                    loadArguments(mv, METHOD_ARGS_INDEX, 2, descriptor);


                    mv.visitMethodInsn(INVOKESTATIC, typePath, method, sig(ret, signature));
                    mv.visitInsn(ARETURN);
                    mv.visitMaxs(4, 4);
                    c = endCall(cw, mv, mname);
                }
                FastInvocationCallback ic = (FastInvocationCallback) c.newInstance();
                ic.setArity(Arity.twoArguments());
                ic.setArgumentTypes(descriptor);

View Full Code Here

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