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

org.objectweb.asm.MethodVisitor.visitJumpInsn()
Visits a jump instruction. A jump instruction is an instruction that may jump to another instruction. @param opcode the opcode of the type instruction to be visited. Thisopcode is either IFEQ, IFNE, IFLT, IFGE, IFGT, IFLE, IF_ICMPEQ, IF_ICMPNE, IF_ICMPLT, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ACMPEQ, IF_ACMPNE, GOTO, JSR, IFNULL or IFNONNULL. @param label the operand of the instruction to be visited. This operandis a label that designates the instruction to which the jump instruction may jump.


        mv.visitLabel(continueLabel);
        mv.visitVarInsn(ALOAD, iteratorIdx);
        writeIteratorHasNext(mv);
        // note: ifeq tests for ==0, a boolean is 0 if it is false
        mv.visitJumpInsn(IFEQ, breakLabel);


        mv.visitVarInsn(ALOAD, iteratorIdx);
        writeIteratorNext(mv);
        operandStack.push(ClassHelper.OBJECT_TYPE);
        operandStack.storeVar(variable);

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        operandStack.storeVar(variable);


        // Generate the loop body
        loop.getLoopBlock().visit(controller.getAcg());


        mv.visitJumpInsn(GOTO, continueLabel);
        mv.visitLabel(breakLabel);


        compileStack.pop();
    }

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        for (int i = condIndex + 1; i < size; i++) {
            visitExpressionOrStatement(expressions.get(i));
        }


        // jump to test the condition again
        mv.visitJumpInsn(GOTO, cond);


        // loop end
        mv.visitLabel(breakLabel);


        controller.getCompileStack().pop();

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            if (constant.getValue()==Boolean.TRUE) {
                boolHandled = true;
                // do nothing
            } else if (constant.getValue()==Boolean.FALSE) {
                boolHandled = true;
                mv.visitJumpInsn(GOTO, breakLabel);
            }
        }


        if(!boolHandled) {
            bool.visit(controller.getAcg());

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            controller.getOperandStack().jump(IFEQ, breakLabel);
        }


        loop.getLoopBlock().visit(controller.getAcg());


        mv.visitJumpInsn(GOTO, continueLabel);
        mv.visitLabel(breakLabel);


        controller.getCompileStack().pop();            
    }

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        controller.getCompileStack().pushBooleanExpression();
        ifElse.getIfBlock().visit(controller.getAcg());
        controller.getCompileStack().pop();


        Label l1 = new Label();
        mv.visitJumpInsn(GOTO, l1);
        mv.visitLabel(l0);


        controller.getCompileStack().pushBooleanExpression();
        ifElse.getElseBlock().visit(controller.getAcg());
        controller.getCompileStack().pop();

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        tryStatement.visit(controller.getAcg());


        // goto finally part
        Label finallyStart = new Label();
        mv.visitJumpInsn(GOTO, finallyStart);


        Label tryEnd = new Label();
        mv.visitLabel(tryEnd);
        tryBlock.closeRange(tryEnd);
        // pop for "makeBlockRecorder(finallyStatement)"

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            Label catchEnd = new Label();
            mv.visitLabel(catchEnd);
            catches.closeRange(catchEnd);


            // goto finally start
            mv.visitJumpInsn(GOTO, finallyStart);
            compileStack.writeExceptionTable(tryBlock, catchStart, exceptionTypeInternalName);
        }


        // Label used to handle exceptions in catches and regularly
        // visited finals.

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        finallyStatement.visit(controller.getAcg());
        mv.visitInsn(NOP);  //**


        // goto after all-catching block
        Label skipCatchAll = new Label();
        mv.visitJumpInsn(GOTO, skipCatchAll);


        // start a block catching any Exception
        mv.visitLabel(catchAny);
        //store exception
        //TODO: maybe define a Throwable and use it here instead of Object

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        statement.getCode().visit(controller.getAcg());


        // now if we don't finish with a break we need to jump past
        // the next comparison
        if (nextLabel != null) {
            mv.visitJumpInsn(GOTO, nextLabel);
        }


        mv.visitLabel(l0);
    }

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