Examples of org.jruby.compiler.ir.operands.Operand

org.jruby.compiler.ir.operands.Operand


        return method;
    }


    public Operand buildDefn(MethodDefNode node, IRScope s) { // Instance method
        Operand container = MetaObject.create(s.getNearestModule());
        IRMethod method = defineNewMethod(node, s, container, true);
        s.getNearestModule().addMethod(method);
        s.addInstr(new DefineInstanceMethodInstr(container, method));
        return Nil.NIL;
    }

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        s.addInstr(new DefineInstanceMethodInstr(container, method));
        return Nil.NIL;
    }


    public Operand buildDefs(DefsNode node, IRScope s) { // Class method
        Operand container =  build(node.getReceiverNode(), s);
        IRMethod method = defineNewMethod(node, s, container, false);
        // ENEBO: Can all metaobjects be used for this?  closure?
        //if (container instanceof MetaObject) {
        //    ((IRModule) ((MetaObject) container).getScope()).addMethod(method);
        //}

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        // Start of region
        m.addInstr(new LABEL_Instr(rBeginLabel));
        m.addInstr(new ExceptionRegionStartMarkerInstr(rBeginLabel, rEndLabel, rescueLabels));


        // 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));


        // Pop the current ensure block info node *BEFORE* generating the ensure code for this block itself!
        _ensureBlockStack.pop();


        // Generate the ensure block now
        m.addInstr(new LABEL_Instr(ebi.start));


        // Two cases:
        // 1. Ensure block has no explicit return => the result of the entire ensure expression is the result of the protected body.
        // 2. Ensure block has an explicit return => the result of the protected body is ignored.
        Operand ensureRetVal = (ensureNode.getEnsureNode() == null) ? Nil.NIL : build(ensureNode.getEnsureNode(), m);
        if (ensureRetVal == null)   // null => there was a return from within the ensure block!
            rv = null;


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

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    }


    public Operand buildFCall(FCallNode fcallNode, IRScope s) {
        Node          callArgsNode = fcallNode.getArgsNode();
        List<Operand> args         = setupCallArgs(callArgsNode, s);
        Operand       block        = setupCallClosure(fcallNode.getIterNode(), s);
        Variable      callResult   = s.getNewTemporaryVariable();
        Instr         callInstr    = new CallInstr(callResult, new MethAddr(fcallNode.getName()), getSelf(s), args.toArray(new Operand[args.size()]), block);
        s.addInstr(callInstr);
        return callResult;
    }

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        return new Float(node.getValue());
    }


    public Operand buildFor(ForNode forNode, IRExecutionScope m) {
        Variable ret      = m.getNewTemporaryVariable();
        Operand  receiver = build(forNode.getIterNode(), m);
        Operand  forBlock = buildForIter(forNode, m);     
        // SSS FIXME: Really?  Why the internal call?
        m.addInstr(new RubyInternalCallInstr(ret, MethAddr.FOR_EACH, receiver, NO_ARGS, forBlock));
        return ret;
    }

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            if (argsNodeId != null)
                buildBlockArgsAssignment(forNode.getVarNode(), closure, 0, false); // SSS: Changed this from 1 to 0
        }


            // Build closure body and return the result of the closure
        Operand closureRetVal = forNode.getBodyNode() == null ? Nil.NIL : build(forNode.getBodyNode(), closure);
        if (closureRetVal != null)  // can be null if the node is an if node with returns in both branches.
            closure.addInstr(new ClosureReturnInstr(closureRetVal));


        return MetaObject.create(closure);
    }

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        return MetaObject.create(closure);
    }


    public Operand buildGlobalAsgn(GlobalAsgnNode globalAsgnNode, IRScope m) {
        Operand value = build(globalAsgnNode.getValueNode(), m);
        m.addInstr(new PutGlobalVarInstr(globalAsgnNode.getName(), value));
        return value;
    }

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        if (hashNode.getListNode() == null || hashNode.getListNode().size() == 0) {
            return new Hash(new ArrayList<KeyValuePair>());
        }
        else {
            int     i     = 0;
            Operand key   = null;
            Operand value = null;
            List<KeyValuePair> args = new ArrayList<KeyValuePair>();
            for (Node nextNode : hashNode.getListNode().childNodes()) {
                Operand v = build(nextNode, m);
                if (key == null) {
                    key = v;
                }
                else {
                    args.add(new KeyValuePair(key, v));

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        Node actualCondition = skipOverNewlines(s, ifNode.getCondition());


        Variable result     = s.getNewTemporaryVariable();
        Label    falseLabel = s.getNewLabel();
        Label    doneLabel  = s.getNewLabel();
        Operand  thenResult = null;
        s.addInstr(new BEQInstr(build(actualCondition, s), BooleanLiteral.FALSE, falseLabel));


        boolean thenNull = false;
        boolean elseNull = false;
        boolean thenUnil = false;
        boolean elseUnil = false;


        // Build the then part of the if-statement
        if (ifNode.getThenBody() != null) {
            thenResult = build(ifNode.getThenBody(), s);
            if (thenResult != U_NIL) { // thenResult can be U_NIL if then-body ended with a return!
                // Local optimization of break results to short-circuit the jump right away
                // rather than wait to do it during an optimization pass.
                Label tgt = doneLabel;
                if (thenResult instanceof BreakResult) {
                    BreakResult br = (BreakResult)thenResult;
                    thenResult = br._result;
                    tgt = br._jumpTarget;
                }
                s.addInstr(new CopyInstr(result, thenResult));
                s.addInstr(new JumpInstr(tgt));
            }
            else {
                thenUnil = true;
            }
        }
        else {
            thenNull = true;
            s.addInstr(new CopyInstr(result, Nil.NIL));
            s.addInstr(new JumpInstr(doneLabel));
        }


        // Build the else part of the if-statement
        s.addInstr(new LABEL_Instr(falseLabel));
        if (ifNode.getElseBody() != null) {
            Operand elseResult = build(ifNode.getElseBody(), s);
            // elseResult can be U_NIL if then-body ended with a return!
            if (elseResult != U_NIL) {
                s.addInstr(new CopyInstr(result, elseResult));
            }
            else {

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            return result;
        }
    }


    public Operand buildInstAsgn(final InstAsgnNode instAsgnNode, IRScope s) {
        Operand val = build(instAsgnNode.getValueNode(), s);
        // NOTE: if 's' happens to the a class, this is effectively an assignment of a class instance variable
        s.addInstr(new PutFieldInstr(getSelf(s), instAsgnNode.getName(), val));
        return val;
    }

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org.jruby.compiler.ir.instructions.BEQInstr

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org.jruby.compiler.ir.instructions.DefineClassMethodInstr

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