Examples of org.drools.asm.MethodVisitor.visitVarInsn()

org.drools.asm.MethodVisitor.visitVarInsn()
Visits a local variable instruction. A local variable instruction is an instruction that loads or stores the value of a local variable. @param opcode the opcode of the local variable instruction to be visited.This opcode is either ILOAD, LLOAD, FLOAD, DLOAD, ALOAD, ISTORE, LSTORE, FSTORE, DSTORE, ASTORE or RET. @param var the operand of the instruction to be visited. This operand isthe index of a local variable.

                        mv.visitInsn( Opcodes.ICONST_0 );
                        Label olabel2 = new Label();
                        mv.visitJumpInsn( Opcodes.GOTO,
                                          olabel2 );
                        mv.visitLabel( olabel1 );
                        mv.visitVarInsn( Opcodes.ALOAD,
                                         0 );
                        mv.visitFieldInsn( Opcodes.GETFIELD,
                                           getInternalType( classDef.getClassName() ),
                                           field.getName(),
                                           getTypeDescriptor( field.getTypeName() ) );

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                                            "()I" );
                        mv.visitLabel( olabel2 );
                    }


                    mv.visitInsn( Opcodes.IADD );
                    mv.visitVarInsn( Opcodes.ISTORE,
                                     1 );
                }
            }
            mv.visitVarInsn( Opcodes.ILOAD,
                             1 );

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                    mv.visitInsn( Opcodes.IADD );
                    mv.visitVarInsn( Opcodes.ISTORE,
                                     1 );
                }
            }
            mv.visitVarInsn( Opcodes.ILOAD,
                             1 );
            mv.visitInsn( Opcodes.IRETURN );


            Label lastLabel = null;
            if ( this.debug ) {

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            mv.visitInsn( Opcodes.DUP );
            mv.visitMethodInsn( Opcodes.INVOKESPECIAL,
                                Type.getInternalName( StringBuffer.class ),
                                "<init>",
                                "()V" );
            mv.visitVarInsn( Opcodes.ASTORE,
                             1 );


            // buf.append(this.getClass().getSimpleName())
            mv.visitVarInsn( Opcodes.ALOAD,
                             1 );

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                                "()V" );
            mv.visitVarInsn( Opcodes.ASTORE,
                             1 );


            // buf.append(this.getClass().getSimpleName())
            mv.visitVarInsn( Opcodes.ALOAD,
                             1 );
            mv.visitVarInsn( Opcodes.ALOAD,
                             0 );
            mv.visitMethodInsn( Opcodes.INVOKEVIRTUAL,
                                getInternalType( classDef.getClassName() ),

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                             1 );


            // buf.append(this.getClass().getSimpleName())
            mv.visitVarInsn( Opcodes.ALOAD,
                             1 );
            mv.visitVarInsn( Opcodes.ALOAD,
                             0 );
            mv.visitMethodInsn( Opcodes.INVOKEVIRTUAL,
                                getInternalType( classDef.getClassName() ),
                                "getClass",
                                "()Ljava/lang/Class;" );

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                                    Type.getInternalName( StringBuffer.class ),
                                    "append",
                                    "(Ljava/lang/String;)Ljava/lang/StringBuffer;" );


                // buf.append(attrValue)
                mv.visitVarInsn( Opcodes.ALOAD,
                                 0 );
                mv.visitFieldInsn( Opcodes.GETFIELD,
                                   getInternalType( classDef.getClassName() ),
                                   field.getName(),
                                   getTypeDescriptor( field.getTypeName() ) );

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        mv.visitCode();


        // return __field;
        final Label l0 = new Label();
        mv.visitLabel( l0 );
        mv.visitVarInsn( Opcodes.ALOAD,
                         0 );
        mv.visitFieldInsn( Opcodes.GETFIELD,
                           className,
                           fieldName,
                           Type.getDescriptor( fieldType ) );

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            final String fieldName = (String) entry.getKey();
            final String fieldFlag = fieldName + ShadowProxyFactory.FIELD_SET_FLAG;
            final Class fieldType = ((Method) entry.getValue()).getReturnType();
            final Label l1 = new Label();
            mv.visitLabel( l1 );
            mv.visitVarInsn( Opcodes.ALOAD,
                             0 );
            if ( fieldType.isPrimitive() ) {
                if ( fieldType.equals( Long.TYPE ) ) {
                    mv.visitInsn( Opcodes.LCONST_0 );
                } else if ( fieldType.equals( Double.TYPE ) ) {

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                               className,
                               fieldName,
                               Type.getDescriptor( fieldType ) );
            final Label l2 = new Label();
            mv.visitLabel( l2 );
            mv.visitVarInsn( Opcodes.ALOAD,
                             0 );
            mv.visitInsn( Opcodes.ICONST_0 );
            mv.visitFieldInsn( Opcodes.PUTFIELD,
                               className,
                               fieldFlag,

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