Examples of org.jruby.ir.operands.Variable

org.jruby.ir.operands.Variable

    }


    public Operand buildMatch3(Match3Node matchNode, IRScope s) {
        Operand receiver = build(matchNode.getReceiverNode(), s);
        Operand value    = build(matchNode.getValueNode(), s);
        Variable result = s.getNewTemporaryVariable();
        s.addInstr(new Match3Instr(result, receiver, value));
        return result;
    }

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        String moduleName = cpath.getName();
        Operand container = getContainerFromCPath(cpath, s);


        // Build the new module
        IRModuleBody m = new IRModuleBody(manager, s, moduleName, moduleNode.getPosition().getLine(), moduleNode.getScope());
        Variable moduleBody = s.getNewTemporaryVariable();
        s.addInstr(new DefineModuleInstr(moduleBody, m, container));
        Variable ret = s.getNewTemporaryVariable();
        s.addInstr(new ProcessModuleBodyInstr(ret, moduleBody));


        m.addInstr(new ReceiveSelfInstr(m.getSelf()));
        // Set %current_scope = <c>
        // Set %current_module = module<c>

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        return ret;
    }


    public Operand buildMultipleAsgn(MultipleAsgnNode multipleAsgnNode, IRScope s) {
        Operand  values = build(multipleAsgnNode.getValueNode(), s);
        Variable ret = getValueInTemporaryVariable(s, values);
        buildMultipleAsgnAssignment(multipleAsgnNode, s, null, ret);
        return ret;
    }

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        if (sourceArray != null) {
            for (Node an: sourceArray.childNodes()) {
                if (values == null) {
                    buildBlockArgsAssignment(an, s, argsArray, i, false, false, false);
                } else {
                    Variable rhsVal = s.getNewTemporaryVariable();
                    s.addInstr(new ReqdArgMultipleAsgnInstr(rhsVal, values, i));
                    buildAssignment(an, s, rhsVal);
                }
                i++;
            }
        }


        // First, build an assignment for a splat, if any, with the rest of the args!
        Node argsNode = multipleAsgnNode.getArgsNode();
        if (argsNode == null) {
            if (sourceArray == null)
                throw new NotCompilableException("Something's wrong, multiple assignment with no head or args at: " + multipleAsgnNode.getPosition());
        } else if (argsNode instanceof StarNode) {
            // do nothing
        } else if (values != null) {
            Variable rhsVal = s.getNewTemporaryVariable();
            s.addInstr(new RestArgMultipleAsgnInstr(rhsVal, values, i));
            buildAssignment(argsNode, s, rhsVal); // rest of the argument array!
        } else {
            buildBlockArgsAssignment(argsNode, s, argsArray, i, false, false, true); // rest of the argument array!
        }

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    public Operand buildNil(Node node, IRScope s) {
        return manager.getNil();
    }


    public Operand buildNot(NotNode node, IRScope s) {
        Variable ret = s.getNewTemporaryVariable();
        s.addInstr(new NotInstr(ret, build(node.getConditionNode(), s)));
        return ret;
    }

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        return ret;
    }


    public Operand buildOpAsgn(OpAsgnNode opAsgnNode, IRScope s) {
        Label l;
        Variable readerValue = s.getNewTemporaryVariable();
        Variable writerValue = s.getNewTemporaryVariable();


        // get attr
        Operand  v1 = build(opAsgnNode.getReceiverNode(), s);
        s.addInstr(CallInstr.create(readerValue, new MethAddr(opAsgnNode.getVariableName()), v1, NO_ARGS, null));


        // Ex: e.val ||= n
        //     e.val &&= n
        String opName = opAsgnNode.getOperatorName();
        if (opName.equals("||") || opName.equals("&&")) {
            l = s.getNewLabel();
            s.addInstr(BEQInstr.create(readerValue, opName.equals("||") ? manager.getTrue() : manager.getFalse(), l));


            // compute value and set it
            Operand  v2 = build(opAsgnNode.getValueNode(), s);
            s.addInstr(CallInstr.create(writerValue, new MethAddr(opAsgnNode.getVariableNameAsgn()), v1, new Operand[] {v2}, null));
            // It is readerValue = v2.
            // readerValue = writerValue is incorrect because the assignment method
            // might return something else other than the value being set!
            s.addInstr(new CopyInstr(readerValue, v2));
            s.addInstr(new LabelInstr(l));


            return readerValue;
        }
        // Ex: e.val = e.val.f(n)
        else {
            // call operator
            Operand  v2 = build(opAsgnNode.getValueNode(), s);
            Variable setValue = s.getNewTemporaryVariable();
            s.addInstr(CallInstr.create(setValue, new MethAddr(opAsgnNode.getOperatorName()), readerValue, new Operand[]{v2}, null));
           
            // set attr
            s.addInstr(CallInstr.create(writerValue, new MethAddr(opAsgnNode.getVariableNameAsgn()), v1, new Operand[] {setValue}, null));
            // Returning writerValue is incorrect becuase the assignment method

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    // L:
    //
    public Operand buildOpAsgnAnd(OpAsgnAndNode andNode, IRScope s) {
        Label    l  = s.getNewLabel();
        Operand  v1 = build(andNode.getFirstNode(), s);
        Variable result = getValueInTemporaryVariable(s, v1);
        s.addInstr(BEQInstr.create(v1, manager.getFalse(), l));
        Operand v2 = build(andNode.getSecondNode(), s);  // This does the assignment!
        s.addInstr(new CopyInstr(result, v2));
        s.addInstr(new LabelInstr(l));
        return result;

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    // L:
    //
    public Operand buildOpAsgnOr(final OpAsgnOrNode orNode, IRScope s) {
        Label    l1 = s.getNewLabel();
        Label    l2 = null;
        Variable flag = s.getNewTemporaryVariable();
        Operand  v1;
        boolean  needsDefnCheck = needsDefinitionCheck(orNode.getFirstNode());
        if (needsDefnCheck) {
            l2 = s.getNewLabel();
            v1 = buildGetDefinitionBase(orNode.getFirstNode(), s);
            s.addInstr(new CopyInstr(flag, v1));
            s.addInstr(BEQInstr.create(flag, manager.getNil(), l2)); // if v1 is undefined, go to v2's computation
        }
        v1 = build(orNode.getFirstNode(), s); // build of 'x'
        s.addInstr(new CopyInstr(flag, v1));
        Variable result = getValueInTemporaryVariable(s, v1);
        if (needsDefnCheck) {
            s.addInstr(new LabelInstr(l2));
        }
        s.addInstr(BEQInstr.create(flag, manager.getTrue(), l1));  // if v1 is defined and true, we are done! 
        Operand v2 = build(orNode.getSecondNode(), s); // This is an AST node that sets x = y, so nothing special to do here.

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    // L:
    //
    public Operand buildOpElementAsgnWithOr(OpElementAsgnNode opElementAsgnNode, IRScope s) {
        Operand array = build(opElementAsgnNode.getReceiverNode(), s);
        Label    l     = s.getNewLabel();
        Variable elt   = s.getNewTemporaryVariable();
        List<Operand> argList = setupCallArgs(opElementAsgnNode.getArgsNode(), s);
        s.addInstr(CallInstr.create(elt, new MethAddr("[]"), array, argList.toArray(new Operand[argList.size()]), null));
        s.addInstr(BEQInstr.create(elt, manager.getTrue(), l));
        Operand value = build(opElementAsgnNode.getValueNode(), s);
        argList.add(value);

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    // Translate "a[x] &&= n" --> "a[x] = n if is_true(a[x])"
    public Operand buildOpElementAsgnWithAnd(OpElementAsgnNode opElementAsgnNode, IRScope s) {
        Operand array = build(opElementAsgnNode.getReceiverNode(), s);
        Label    l     = s.getNewLabel();
        Variable elt   = s.getNewTemporaryVariable();
        List<Operand> argList = setupCallArgs(opElementAsgnNode.getArgsNode(), s);
        s.addInstr(CallInstr.create(elt, new MethAddr("[]"), array, argList.toArray(new Operand[argList.size()]), null));
        s.addInstr(BEQInstr.create(elt, manager.getFalse(), l));
        Operand value = build(opElementAsgnNode.getValueNode(), s);
        argList.add(value);

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org.jruby.ir.dataflow.analyses.LiveVariableNode

org.jruby.ir.dataflow.analyses.LiveVariablesProblem

org.jruby.ir.dataflow.analyses.StoreLocalVarPlacementNode

org.jruby.ir.dataflow.analyses.StoreLocalVarPlacementProblem

org.jruby.ir.instructions.BreakInstr

org.jruby.ir.instructions.Instr

org.jruby.ir.instructions.NonlocalReturnInstr

org.jruby.ir.instructions.ReturnInstr

org.jruby.ir.instructions.RuntimeHelperCall

org.jruby.ir.interpreter.Interpreter

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