Re: Re: Problem with generating method

Please use [email protected] for ASM questions & answers. I assume that you mean mv.visitMethodInsn, not mv.visitFieldInsn

--- On Mon, 3/21/11, Wojciech Tomasz Cichon <[email protected]> wrote:

From: Wojciech Tomasz Cichon <[email protected]>
Subject: Re: [asm] Re: Problem with generating method
To: "Buu Vinh" <[email protected]>
Date: Monday, March 21, 2011, 8:12 AM



cheers,
i just fixed that
supposed to i want to call this method
i tried this:
mv.visitInsn(Opcodes.ICONST_2);     
   mv.visitInsn(Opcodes.ICONST_4);     
mv.visitFieldInsn  (Opcodes.INVOKESTATIC, className, name , 
"(II)I");
 
and it returns me an error: f has illigal signature “(II)I”
can you tell me how i can fix that?
regards
 


 

From: Buu Vinh 
Sent: Monday, March 21, 2011 12:54 PM
To: [email protected] ; 
[email protected] 
Subject: [asm] Re: Problem with generating method
 


  
  
    Your method descriptor indicates that the return type is an 
      integer "(II)I", therefore your return should be IRETURN.

--- On 
      Mon, 3/21/11, [email protected] <[email protected]> 
      wrote:

      
From: 
        [email protected] <[email protected]>
Subject: [asm] Problem 
        with generating method
To: [email protected]
Date: Monday, March 21, 
        2011, 6:49 AM


        
i succeded in creating main method, and 
        constructor
but now i need to create new static method
suppose i 
        want do method:
static public f(int x, int y)
{
return 
        x*y;
}

based on my experience with other methods i 
        wrote:

mv = cw.visitMethod( 
        Opcodes.ACC_PUBLIC+Opcodes.ACC_STATIC, 
f,"(II)I",null,null); 
        
mv.visitCode();
mv.visitVarInsn(Opcodes.ILOAD, 
        0);
mv.visitVarInsn(Opcodes.ILOAD, 
        1);
mv.visitInsn(Opcodes.IMUL);
mv.visitInsn(Opcodes.RETURN);
mv.visitMaxs(0, 
        0);
mv.visitEnd();

disassebled code for this method is looks 
        exactly as that one created from
source code
bur when i try run 
        class (without using that method)
a get
(class: myClass, method: f 
        signature (II)I)  Wrong return type in function
can somebody 
        tells me whad did i miss
regards

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