Examples of org.jruby.compiler.ir.instructions.ExceptionRegionEndMarkerInstr

Package org.jruby.compiler.ir.instructions

Examples of org.jruby.compiler.ir.instructions.ExceptionRegionEndMarkerInstr

org.jruby.compiler.ir.instructions.ExceptionRegionEndMarkerInstr

        m.addInstr(new JUMP_INDIRECT_Instr(ebi.returnAddr));


        // By moving the exception region end marker here to include the ensure block,
        // we effectively swallow those exceptions -- but we will end up trying to rerun the ensure code again!
        // SSS FIXME: Wont this get us stuck in an infinite loop?
        m.addInstr(new ExceptionRegionEndMarkerInstr());


        // Rescue block code
        // SSS FIXME: How do we get this to catch all exceptions, not just Ruby exceptions?
        Label dummyRescueBlockLabel = m.getNewLabel();
        rescueLabels.add(dummyRescueBlockLabel);

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        m.addInstr(new LABEL_Instr(rBeginLabel));
        m.addInstr(new ExceptionRegionStartMarkerInstr(rBeginLabel, rEndLabel, rescueLabels));
        Object v1 = protectedCode.run(protectedCodeArgs); // YIELD: Run the protected code block
        m.addInstr(new CopyInstr(rv, (Operand)v1));
        m.addInstr(new JumpInstr(rEndLabel));
        m.addInstr(new ExceptionRegionEndMarkerInstr());


        // Rescue code
        Label rbLabel = m.getNewLabel();
        rescueLabels.add(rbLabel);
        m.addInstr(new LABEL_Instr(rbLabel));

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        // Generate IR for Code being protected
        Operand  rv = (bodyNode instanceof RescueNode) ? buildRescueInternal(bodyNode, m, rBeginLabel) : build(bodyNode, m);


        // End of protected region
        m.addInstr(new ExceptionRegionEndMarkerInstr());


        // Jump to start of ensure block -- dont bother if we had a return in the protected body 
        if (rv != U_NIL)
            m.addInstr(new SET_RETADDR_Instr(ebi.returnAddr, rEndLabel));

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            // buildRescueBodyInternal below.  So, in either case, we are good!
        }


        // Since rescued regions are well nested within Ruby, this bare marker is sufficient to
        // let us discover the edge of the region during linear traversal of instructions during cfg construction.
        ExceptionRegionEndMarkerInstr rbEndInstr = new ExceptionRegionEndMarkerInstr();
        m.addInstr(rbEndInstr);


        // Build the actual rescue block(s)
        Label rbLabel = m.getNewLabel(); // Label marking start of the first rescue code.
        rescueBlockLabels.add(rbLabel);

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Related Classes of org.jruby.compiler.ir.instructions.ExceptionRegionEndMarkerInstr

org.jruby.compiler.ir.IRBuilder

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