Examples of org.jruby.ast.ForNode

org.jruby.ast.ForNode
A 'for' statement. This is implemented using iter and that is how MRI does things, but 'for's do not have their own stack, so doing this way is mildly painful. @see IterNode


        context.createNewFloat(floatNode.getValue());
    }


    public void compileFor(Node node, BodyCompiler context) {
        final ForNode forNode = (ForNode) node;


        CompilerCallback receiverCallback = new CompilerCallback() {


                    public void call(BodyCompiler context) {
                        compile(forNode.getIterNode(), context);
                    }
                };


        final CompilerCallback closureArg = new CompilerCallback() {

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        context.getInvocationCompiler().invokeDynamic("each", receiverCallback, null, CallType.NORMAL, closureArg, true);
    }


    public void compileForIter(Node node, BodyCompiler context) {
        final ForNode forNode = (ForNode) node;


        // create the closure class and instantiate it
        final CompilerCallback closureBody = new CompilerCallback() {


                    public void call(BodyCompiler context) {
                        if (forNode.getBodyNode() != null) {
                            compile(forNode.getBodyNode(), context);
                        } else {
                            context.loadNil();
                        }
                    }
                };


        // create the closure class and instantiate it
        final CompilerCallback closureArgs = new CompilerCallback() {


                    public void call(BodyCompiler context) {
                        if (forNode.getVarNode() != null) {
                            compileAssignment(forNode.getVarNode(), context);
                        }
                    }
                };


        boolean hasMultipleArgsHead = false;
        if (forNode.getVarNode() instanceof MultipleAsgnNode) {
            hasMultipleArgsHead = ((MultipleAsgnNode) forNode.getVarNode()).getHeadNode() != null;
        }


        NodeType argsNodeId = null;
        if (forNode.getVarNode() != null) {
            argsNodeId = forNode.getVarNode().nodeId;
        }


        if (argsNodeId == null) {
            // no args, do not pass args processor
            context.createNewForLoop(Arity.procArityOf(forNode.getVarNode()).getValue(),
                    closureBody, null, hasMultipleArgsHead, argsNodeId);
        } else {
            context.createNewForLoop(Arity.procArityOf(forNode.getVarNode()).getValue(),
                    closureBody, closureArgs, hasMultipleArgsHead, argsNodeId);
        }
    }

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              }
  break;
case 304:
          // line 1126 "DefaultRubyParser.y"
  {
                  yyVal = new ForNode(support.union(((Token)yyVals[-8+yyTop]), ((Token)yyVals[0+yyTop])), ((Node)yyVals[-7+yyTop]), ((Node)yyVals[-1+yyTop]), ((Node)yyVals[-4+yyTop]));
              }
  break;
case 305:
          // line 1129 "DefaultRubyParser.y"
  {

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        if (expr) context.createNewFloat(floatNode.getValue());
    }


    public void compileFor(Node node, BodyCompiler context, boolean expr) {
        final ForNode forNode = (ForNode) node;


        CompilerCallback receiverCallback = new CompilerCallback() {


                    public void call(BodyCompiler context) {
                        compile(forNode.getIterNode(), context, true);
                    }
                };


        final CompilerCallback closureArg = new CompilerCallback() {

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        // TODO: don't require pop
        if (!expr) context.consumeCurrentValue();
    }


    public void compileForIter(Node node, BodyCompiler context) {
        final ForNode forNode = (ForNode) node;


        // create the closure class and instantiate it
        final CompilerCallback closureBody = new CompilerCallback() {


                    public void call(BodyCompiler context) {
                        if (forNode.getBodyNode() != null) {
                            compile(forNode.getBodyNode(), context,true);
                        } else {
                            context.loadNil();
                        }
                    }
                };


        // create the closure class and instantiate it
        final CompilerCallback closureArgs = new CompilerCallback() {


                    public void call(BodyCompiler context) {
                        if (forNode.getVarNode() != null) {
                            compileAssignment(forNode.getVarNode(), context, false);


                            // consume the block, since for loops can't receive block
                            context.consumeCurrentValue();
                        }
                    }
                };


        boolean hasMultipleArgsHead = false;
        if (forNode.getVarNode() instanceof MultipleAsgnNode) {
            hasMultipleArgsHead = ((MultipleAsgnNode) forNode.getVarNode()).getHeadNode() != null;
        }


        NodeType argsNodeId = null;
        if (forNode.getVarNode() != null) {
            argsNodeId = forNode.getVarNode().getNodeType();
        }
        
        ASTInspector inspector = new ASTInspector();
        inspector.inspect(forNode.getBodyNode());
        inspector.inspect(forNode.getVarNode());


        // force heap-scope behavior, since it uses parent's scope
        inspector.setFlag(forNode, ASTInspector.CLOSURE);


        context.createNewForLoop(Arity.procArityOf(forNode.getVarNode()).getValue(),
                closureBody, closureArgs, hasMultipleArgsHead, argsNodeId, inspector);
    }

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Related Classes of org.jruby.ast.ForNode

org.jruby.compiler.ASTCompiler

org.jruby.parser.DefaultRubyParser

org.jruby.runtime.Block

org.jruby.runtime.builtin.IRubyObject

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