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

org.drools.asm.MethodVisitor.visitMethodInsn()
Visits a method instruction. A method instruction is an instruction that invokes a method. @param opcode the opcode of the type instruction to be visited. Thisopcode is either INVOKEVIRTUAL, INVOKESPECIAL, INVOKESTATIC or INVOKEINTERFACE. @param owner the internal name of the method's owner class (see {@link Type#getInternalName() getInternalName}). @param name the method's name. @param desc the method's descriptor (see {@link Type Type}).

                                            Type.getInternalName( Float.class ),
                                            "floatToIntBits",
                                            "(F)I" );
                    } else if ( "double".equals( field.getTypeName() ) ) {
                        // attr_hash ::== (int) (Double.doubleToLongBits( doubleAttr ) ^ (Double.doubleToLongBits( doubleAttr ) >>> 32));
                        mv.visitMethodInsn( Opcodes.INVOKESTATIC,
                                            Type.getInternalName( Double.class ),
                                            "doubleToLongBits",
                                            "(D)J" );
                        mv.visitInsn( Opcodes.DUP2 );
                        mv.visitIntInsn( Opcodes.BIPUSH,

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                                         0 );
                        mv.visitFieldInsn( Opcodes.GETFIELD,
                                           getInternalType( classDef.getClassName() ),
                                           field.getName(),
                                           getTypeDescriptor( field.getTypeName() ) );
                        mv.visitMethodInsn( Opcodes.INVOKEVIRTUAL,
                                            getInternalType( field.getTypeName() ),
                                            "hashCode",
                                            "()I" );
                        mv.visitLabel( olabel2 );
                    }

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            // StringBuffer buf = new StringBuffer();
            mv.visitTypeInsn( Opcodes.NEW,
                              Type.getInternalName( StringBuffer.class ) );
            mv.visitInsn( Opcodes.DUP );
            mv.visitMethodInsn( Opcodes.INVOKESPECIAL,
                                Type.getInternalName( StringBuffer.class ),
                                "<init>",
                                "()V" );
            mv.visitVarInsn( Opcodes.ASTORE,
                             1 );

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            // 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;" );
            mv.visitMethodInsn( Opcodes.INVOKEVIRTUAL,
                                Type.getInternalName( Class.class ),

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                             0 );
            mv.visitMethodInsn( Opcodes.INVOKEVIRTUAL,
                                getInternalType( classDef.getClassName() ),
                                "getClass",
                                "()Ljava/lang/Class;" );
            mv.visitMethodInsn( Opcodes.INVOKEVIRTUAL,
                                Type.getInternalName( Class.class ),
                                "getSimpleName",
                                "()Ljava/lang/String;" );
            mv.visitMethodInsn( Opcodes.INVOKEVIRTUAL,
                                Type.getInternalName( StringBuffer.class ),

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                                "()Ljava/lang/Class;" );
            mv.visitMethodInsn( Opcodes.INVOKEVIRTUAL,
                                Type.getInternalName( Class.class ),
                                "getSimpleName",
                                "()Ljava/lang/String;" );
            mv.visitMethodInsn( Opcodes.INVOKEVIRTUAL,
                                Type.getInternalName( StringBuffer.class ),
                                "append",
                                "(Ljava/lang/String;)Ljava/lang/StringBuffer;" );


            // buf.append("( ");

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                                "append",
                                "(Ljava/lang/String;)Ljava/lang/StringBuffer;" );


            // buf.append("( ");
            mv.visitLdcInsn( "( " );
            mv.visitMethodInsn( Opcodes.INVOKEVIRTUAL,
                                Type.getInternalName( StringBuffer.class ),
                                "append",
                                "(Ljava/lang/String;)Ljava/lang/StringBuffer;" );


            boolean previous = false;

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            boolean previous = false;
            for ( FieldDefinition field : classDef.getFieldsDefinitions() ) {
                if ( previous ) {
                    // buf.append(", ");
                    mv.visitLdcInsn( ", " );
                    mv.visitMethodInsn( Opcodes.INVOKEVIRTUAL,
                                        Type.getInternalName( StringBuffer.class ),
                                        "append",
                                        "(Ljava/lang/String;)Ljava/lang/StringBuffer;" );
                }
                // buf.append(attrName)

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                                        "append",
                                        "(Ljava/lang/String;)Ljava/lang/StringBuffer;" );
                }
                // buf.append(attrName)
                mv.visitLdcInsn( field.getName() );
                mv.visitMethodInsn( Opcodes.INVOKEVIRTUAL,
                                    Type.getInternalName( StringBuffer.class ),
                                    "append",
                                    "(Ljava/lang/String;)Ljava/lang/StringBuffer;" );


                // buf.append("=");

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                                    "append",
                                    "(Ljava/lang/String;)Ljava/lang/StringBuffer;" );


                // buf.append("=");
                mv.visitLdcInsn( "=" );
                mv.visitMethodInsn( Opcodes.INVOKEVIRTUAL,
                                    Type.getInternalName( StringBuffer.class ),
                                    "append",
                                    "(Ljava/lang/String;)Ljava/lang/StringBuffer;" );


                // buf.append(attrValue)

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