Examples of org.objectweb.asm.MethodVisitor.visitInsn()

org.objectweb.asm.MethodVisitor.visitInsn()
Visits a zero operand instruction. @param opcode the opcode of the instruction to be visited. This opcode iseither NOP, ACONST_NULL, ICONST_M1, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, LCONST_0, LCONST_1, FCONST_0, FCONST_1, FCONST_2, DCONST_0, DCONST_1, IALOAD, LALOAD, FALOAD, DALOAD, AALOAD, BALOAD, CALOAD, SALOAD, IASTORE, LASTORE, FASTORE, DASTORE, AASTORE, BASTORE, CASTORE, SASTORE, POP, POP2, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, SWAP, IADD, LADD, FADD, DADD, ISUB, LSUB, FSUB, DSUB, IMUL, LMUL, FMUL, DMUL, IDIV, LDIV, FDIV, DDIV, IREM, LREM, FREM, DREM, INEG, LNEG, FNEG, DNEG, ISHL, LSHL, ISHR, LSHR, IUSHR, LUSHR, IAND, LAND, IOR, LOR, IXOR, LXOR, I2L, I2F, I2D, L2I, L2F, L2D, F2I, F2L, F2D, D2I, D2L, D2F, I2B, I2C, I2S, LCMP, FCMPL, FCMPG, DCMPL, DCMPG, IRETURN, LRETURN, FRETURN, DRETURN, ARETURN, RETURN, ARRAYLENGTH, ATHROW, MONITORENTER, or MONITOREXIT.

                    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));

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                    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());

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                    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());

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                    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());

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                    MethodVisitor mv = startCallSFast(cw);
                    
                    loadArguments(mv, METHOD_ARGS_INDEX, 3, descriptor);


                    mv.visitMethodInsn(INVOKESTATIC, 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));

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                    MethodVisitor mv = startCallFast(cw);
                    
                    mv.visitVarInsn(ALOAD, METHOD_ARGS_INDEX);
                    checkCast(mv, IRubyObject[].class);
                    mv.visitMethodInsn(INVOKEVIRTUAL, typePath, method, sig(ret, signature));
                    mv.visitInsn(ARETURN);
                    mv.visitMaxs(2, 3);
                    c = endCall(cw, mv, mname);
                }
                FastInvocationCallback ic = (FastInvocationCallback) c.newInstance();
                ic.setArity(Arity.optional());

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                    MethodVisitor mv = startCallSFast(cw);
                    
                    mv.visitVarInsn(ALOAD, METHOD_ARGS_INDEX);
                    checkCast(mv, IRubyObject[].class);
                    mv.visitMethodInsn(INVOKESTATIC, typePath, method, sig(ret, signature));
                    mv.visitInsn(ARETURN);
                    mv.visitMaxs(2, 3);
                    c = endCall(cw, mv, mname);
                }
                FastInvocationCallback ic = (FastInvocationCallback) c.newInstance();
                ic.setArity(Arity.optional());

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        mv.visitMethodInsn(INVOKEINTERFACE, itfName, methodName, desc);


        // Return the result
        Type returnType = Type.getReturnType(desc);
        if (returnType.getSort() != Type.VOID) {
            mv.visitInsn(returnType.getOpcode(IRETURN));
        } else {
            mv.visitInsn(RETURN);
        }


        // End of the method.

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        // Return the result
        Type returnType = Type.getReturnType(desc);
        if (returnType.getSort() != Type.VOID) {
            mv.visitInsn(returnType.getOpcode(IRETURN));
        } else {
            mv.visitInsn(RETURN);
        }


        // End of the method.
        mv.visitMaxs(0, 0);
        mv.visitEnd();

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    private static void generateConstructor(ClassWriter cw, String className) {
        MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", '(' + DEPENDENCY_DESC + ")V", null, null);
        mv.visitCode();


        mv.visitVarInsn(ALOAD, 0); // Load this
        mv.visitInsn(DUP); // Dup
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V"); // Call  super
        mv.visitVarInsn(ALOAD, 1); // Load the argument
        mv.visitFieldInsn(PUTFIELD, className, DEPENDENCY, DEPENDENCY_DESC); // Assign the dependency field
        mv.visitInsn(RETURN); // Return void

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