Package org.jruby.ast

Examples of org.jruby.ast.Node

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                sharing_variables = false;
            }
            if (sharing_variables) {
                scope = getManyVarsDynamicScope(container, 0);
            }
            Node node = null;
            if (input instanceof String) {
                node = runtime.parseEval((String)input, filename, scope, line);
            } else {
                node = runtime.parseFile((InputStream)input, filename, scope, line);
            }
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        boolean isCommandLineScript = args.length > i && args[i].equals("-e");
        i += (isCommandLineScript ? 1 : 0);

        while (i < args.length) {
           long t1 = new Date().getTime();
           Node ast = buildAST(isCommandLineScript, args[i]);
           long t2 = new Date().getTime();
           IRScope scope = new IRBuilder().buildRoot((RootNode) ast);
           long t3 = new Date().getTime();
           if (isDebug) {
               System.out.println("################## Before local optimization pass ##################");
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            return new BreakResult(rv, s.getCurrentLoop().loopEndLabel);
        }
    }

    public Operand buildCall(CallNode callNode, IRScope s) {
        Node          callArgsNode = callNode.getArgsNode();
        Node          receiverNode = callNode.getReceiverNode();
        // Though you might be tempted to move this build into the CallInstr as:
        //    new Callinstr( ... , build(receiverNode, s), ...)
        // that is incorrect IR because the receiver has to be built *before* call arguments are built
        // to preserve expected code execution order
        Operand       receiver     = build(receiverNode, s);
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    /**
     * Build a new class and add it to the current scope (s).
     */
    public Operand buildClass(ClassNode classNode, IRScope s) {
        Node superNode = classNode.getSuperNode();
        Colon3Node cpath = classNode.getCPath();
        Operand superClass = (superNode == null) ? MetaObject.create(IRClass.getCoreClass("Object")) : build(superNode, s);
        String className = cpath.getName();
        Operand container = getContainerFromCPath(cpath, s);

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        Operand val = build(node.getValueNode(), s);
        return buildConstDeclAssignment(node, s, val);
    }

    public Operand buildConstDeclAssignment(ConstDeclNode constDeclNode, IRScope s, Operand val) {
        Node constNode = constDeclNode.getConstNode();

        if (constNode == null) {
            // SSS FIXME: Shouldn't we be adding a put const instr. here?
            s.getNearestModule().setConstantValue(constDeclNode.getName(), val);
            s.getNearestModule().getRootMethod().addInstr(new PutConstInstr(s.getNearestModule(), constDeclNode.getName(), val));
        } else if (constNode.getNodeType() == NodeType.COLON2NODE) {
            Operand module = build(((Colon2Node) constNode).getLeftNode(), s);
            s.addInstr(new PutConstInstr(module, constDeclNode.getName(), val));
        } else { // colon3, assign in Object
            s.addInstr(new PutConstInstr(getSelf(s), constDeclNode.getName(), val));
        }
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        s.addInstr(new SearchConstInstr(v, s, name));
        return v;
    }

    public Operand buildColon2(final Colon2Node iVisited, IRScope s) {
        Node leftNode = iVisited.getLeftNode();
        final String name = iVisited.getName();

        // ENEBO: Does this really happen?
        if (leftNode == null) return searchConst(s, name);
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            Label failLabel = m.getNewLabel();
            Label doneLabel = m.getNewLabel();
            Variable rv = m.getNewTemporaryVariable();
            if (node instanceof ArrayNode) {
                for (int i = 0; i < ((ArrayNode) node).size(); i++) {
                    Node iterNode = ((ArrayNode) node).get(i);
                    Operand def = buildGetDefinition(iterNode, m);
                    m.addInstr(new BEQInstr(def, Nil.NIL, failLabel));
                }
            } else {
                Operand def = buildGetDefinition(node, m);
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                s.addInstr(new JRubyImplCallInstr(errInfo, new MethAddr("threadContext_stashErrInfo"), null, NO_ARGS));

                CodeBlock protectedCode = new CodeBlock() {
                    public Object run(Object[] args) {
                        IRScope  m      = (IRScope)args[0];
                        Node     n      = (Node)args[1];
                        String   name   = (String)args[2];
                        Variable tmpVar = m.getNewTemporaryVariable();
                        Operand v;
                        if (n instanceof Colon2Node) {
                            v = build(((Colon2Node) n).getLeftNode(), m);
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        // Build IR for arguments
        receiveArgs(defNode.getArgsNode(), method);

        // Build IR for body
        if (defNode.getBodyNode() != null) {
            Node bodyNode = defNode.getBodyNode();

            // if root of method is rescue, build as a light rescue
            Operand rv = (bodyNode instanceof RescueNode) ?  buildRescueInternal(bodyNode, method, null) : build(bodyNode, method);
            if (rv != null) method.addInstr(new ReturnInstr(rv));
        } else {
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          L3:
    
     * ****************************************************************/
    public Operand buildEnsureNode(Node node, IRScope m) {
        EnsureNode ensureNode = (EnsureNode)node;
        Node       bodyNode   = ensureNode.getBodyNode();

        // Push a new ensure block info node onto the stack of ensure block
        EnsureBlockInfo ebi = new EnsureBlockInfo(m);
        _ensureBlockStack.push(ebi);

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