Examples of org.ow2.asm.MethodVisitor.visitVarInsn()

org.ow2.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.

                "()V",
                null,
                null);
        mv.visitFieldInsn(GETSTATIC, "pkg/Insns", "s", "S");
        mv.visitFieldInsn(PUTSTATIC, "pkg/Insns", "s", "S");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "pkg/Insns", "i", "I");
        mv.visitFieldInsn(PUTFIELD, "pkg/Insns", "i", "I");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 0);

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                null,
                null);
        mv.visitFieldInsn(GETSTATIC, "pkg/Insns", "s", "S");
        mv.visitFieldInsn(PUTSTATIC, "pkg/Insns", "s", "S");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "pkg/Insns", "i", "I");
        mv.visitFieldInsn(PUTFIELD, "pkg/Insns", "i", "I");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "pkg/Insns", "l", "J");

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        mv.visitFieldInsn(PUTSTATIC, "pkg/Insns", "s", "S");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "pkg/Insns", "i", "I");
        mv.visitFieldInsn(PUTFIELD, "pkg/Insns", "i", "I");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "pkg/Insns", "l", "J");
        mv.visitFieldInsn(PUTFIELD, "pkg/Insns", "l", "J");
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);

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        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "pkg/Insns", "i", "I");
        mv.visitFieldInsn(PUTFIELD, "pkg/Insns", "i", "I");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "pkg/Insns", "l", "J");
        mv.visitFieldInsn(PUTFIELD, "pkg/Insns", "l", "J");
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();

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    public void testIllegalVarInsnOperand() {
        MethodVisitor mv = new CheckMethodAdapter(new EmptyVisitor());
        mv.visitCode();
        try {
            mv.visitVarInsn(ALOAD, -1);
            fail();
        } catch (Exception e) {
        }
    }

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                null,
                null);
        // invokstatic
        mv.visitMethodInsn(INVOKESTATIC, "pkg/Insns", "ireturn", "()I");
        // invokespecial
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "pkg/Insns", "lreturn", "()J");
        // invokevirtual
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEVIRTUAL, "pkg/Insns", "freturn", "()F");
        // invokeinterface

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        mv.visitMethodInsn(INVOKESTATIC, "pkg/Insns", "ireturn", "()I");
        // invokespecial
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "pkg/Insns", "lreturn", "()J");
        // invokevirtual
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEVIRTUAL, "pkg/Insns", "freturn", "()F");
        // invokeinterface
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "size", "()I");
        mv.visitInsn(RETURN);

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        mv.visitMethodInsn(INVOKESPECIAL, "pkg/Insns", "lreturn", "()J");
        // invokevirtual
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEVIRTUAL, "pkg/Insns", "freturn", "()F");
        // invokeinterface
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "size", "()I");
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }

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        MethodVisitor mv = cw.visitMethod(ACC_PUBLIC,
                "monitorInsns",
                "()V",
                null,
                null);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(MONITORENTER);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(MONITOREXIT);
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);

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                "()V",
                null,
                null);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(MONITORENTER);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(MONITOREXIT);
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }

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