Package org.objectweb.asm

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

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            // duplicate arguments
            doubleTwoOperands(mv);
           
            Label l1 = new Label();
            mv.visitInsn(getCompareCode());
            mv.visitJumpInsn(IFGE,l1);
            // no jump, so -1, need to pop off surplus LL
            removeTwoOperands(mv);
            mv.visitInsn(ICONST_M1);
            Label l2 = new Label();;
            mv.visitJumpInsn(GOTO, l2);
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            mv.visitJumpInsn(IFGE,l1);
            // no jump, so -1, need to pop off surplus LL
            removeTwoOperands(mv);
            mv.visitInsn(ICONST_M1);
            Label l2 = new Label();;
            mv.visitJumpInsn(GOTO, l2);
           
            mv.visitLabel(l1);
            Label l3 = new Label();
            mv.visitInsn(getCompareCode());
            mv.visitJumpInsn(IFNE,l3);
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            mv.visitJumpInsn(GOTO, l2);
           
            mv.visitLabel(l1);
            Label l3 = new Label();
            mv.visitInsn(getCompareCode());
            mv.visitJumpInsn(IFNE,l3);
            mv.visitInsn(ICONST_0);
            mv.visitJumpInsn(GOTO,l2);
           
            mv.visitLabel(l3);
            mv.visitInsn(ICONST_1);
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        return fastPathData;
    }
       
    private void writeFastPathPrelude(FastPathData meta) {
        MethodVisitor mv = controller.getMethodVisitor();
        mv.visitJumpInsn(GOTO, meta.afterPath);
        mv.visitLabel(meta.pathStart);
        controller.switchToFastPath();
    }
   
    private void writeFastPathEpilogue(FastPathData meta) {
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            // 1 param meta method
            mv = cw.visitMethod(ACC_PUBLIC, "isValidMethod", "([Ljava/lang/Class;)Z", null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 1);
            Label l0 = new Label();
            mv.visitJumpInsn(IFNULL, l0);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKEVIRTUAL, className, "getParameterTypes", "()[Lorg/codehaus/groovy/reflection/CachedClass;");
            mv.visitInsn(ICONST_0);
            mv.visitInsn(AALOAD);
            mv.visitVarInsn(ALOAD, 1);
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            mv.visitVarInsn(ALOAD, 1);
            mv.visitInsn(ICONST_0);
            mv.visitInsn(AALOAD);
            mv.visitMethodInsn(INVOKEVIRTUAL, "org/codehaus/groovy/reflection/CachedClass", "isAssignableFrom", "(Ljava/lang/Class;)Z");
            Label l1 = new Label();
            mv.visitJumpInsn(IFEQ, l1);
            mv.visitLabel(l0);
            mv.visitInsn(ICONST_1);
            Label l2 = new Label();
            mv.visitJumpInsn(GOTO, l2);
            mv.visitLabel(l1);
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            Label l1 = new Label();
            mv.visitJumpInsn(IFEQ, l1);
            mv.visitLabel(l0);
            mv.visitInsn(ICONST_1);
            Label l2 = new Label();
            mv.visitJumpInsn(GOTO, l2);
            mv.visitLabel(l1);
            mv.visitInsn(ICONST_0);
            mv.visitLabel(l2);
            mv.visitInsn(IRETURN);
            mv.visitMaxs(0, 0);
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        Label slowPath = new Label();
       
        for (int i=0; i<guards.length; i++) {
            if (meta.involvedTypes[i]) {
                guards[i].call(mv);
                mv.visitJumpInsn(IFEQ, slowPath);
            }
        }
       
        // meta class check with boolean holder
        String owner = BytecodeHelper.getClassInternalName(controller.getClassNode());
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        // meta class check with boolean holder
        String owner = BytecodeHelper.getClassInternalName(controller.getClassNode());
        MethodNode mn = controller.getMethodNode();
        if (mn!=null) {
            mv.visitFieldInsn(GETSTATIC, owner, Verifier.STATIC_METACLASS_BOOL, "Z");
            mv.visitJumpInsn(IFNE, slowPath);
        }
       
        //standard metaclass check
        disabledStandardMetaClass.call(mv);
        mv.visitJumpInsn(IFNE, slowPath);
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            mv.visitJumpInsn(IFNE, slowPath);
        }
       
        //standard metaclass check
        disabledStandardMetaClass.call(mv);
        mv.visitJumpInsn(IFNE, slowPath);
       
        // other guards here
       
        mv.visitJumpInsn(GOTO, fastPathData.pathStart);
        mv.visitLabel(slowPath);
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