Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/call/GeneralSuperCallNode.java @ 13792:9e7acc9cad8e
kill unused frame states when loop exits are removed
thanks to Gilles
author | Andreas Woess <andreas.woess@jku.at> |
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date | Tue, 28 Jan 2014 23:38:22 +0100 |
parents | 0fbee3eb71f0 |
children |
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/* * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This * code is released under a tri EPL/GPL/LGPL license. You can use it, * redistribute it and/or modify it under the terms of the: * * Eclipse Public License version 1.0 * GNU General Public License version 2 * GNU Lesser General Public License version 2.1 */ package com.oracle.truffle.ruby.nodes.call; import com.oracle.truffle.api.*; import com.oracle.truffle.api.frame.*; import com.oracle.truffle.api.nodes.*; import com.oracle.truffle.ruby.nodes.*; import com.oracle.truffle.ruby.runtime.*; import com.oracle.truffle.ruby.runtime.control.*; import com.oracle.truffle.ruby.runtime.core.*; import com.oracle.truffle.ruby.runtime.core.array.*; import com.oracle.truffle.ruby.runtime.methods.*; import com.oracle.truffle.ruby.runtime.objects.*; /** * Represents a super call - that is a call with self as the receiver, but the superclass of self * used for lookup. Currently implemented without any caching, and needs to be replaced with the * same caching mechanism as for normal calls without complicating the existing calls too much. */ @NodeInfo(shortName = "general-super-call") public class GeneralSuperCallNode extends RubyNode { private final String name; private final boolean isSplatted; @Child protected RubyNode block; @Children protected final RubyNode[] arguments; public GeneralSuperCallNode(RubyContext context, SourceSection sourceSection, String name, RubyNode block, RubyNode[] arguments, boolean isSplatted) { super(context, sourceSection); assert name != null; assert arguments != null; assert !isSplatted || arguments.length == 1; this.name = name; this.block = adoptChild(block); this.arguments = adoptChildren(arguments); this.isSplatted = isSplatted; } @ExplodeLoop @Override public final Object execute(VirtualFrame frame) { // This method is only a simple implementation - it needs proper caching CompilerAsserts.neverPartOfCompilation(); final RubyBasicObject self = (RubyBasicObject) frame.getArguments(RubyArguments.class).getSelf(); // Execute the arguments final Object[] argumentsObjects = new Object[arguments.length]; CompilerAsserts.compilationConstant(arguments.length); for (int i = 0; i < arguments.length; i++) { argumentsObjects[i] = arguments[i].execute(frame); } // Execute the block RubyProc blockObject; if (block != null) { final Object blockTempObject = block.execute(frame); if (blockTempObject instanceof NilPlaceholder) { blockObject = null; } else { blockObject = (RubyProc) blockTempObject; } } else { blockObject = null; } // Lookup method final RubyClass selfClass = self.getRubyClass(); final RubyMethod method = selfClass.getSuperclass().lookupMethod(name); if (method == null || method.isUndefined()) { CompilerDirectives.transferToInterpreter(); throw new RaiseException(getContext().getCoreLibrary().nameErrorNoMethod(name, self.toString())); } if (!method.isVisibleTo(self)) { CompilerDirectives.transferToInterpreter(); throw new RaiseException(getContext().getCoreLibrary().noMethodError("(unknown)")); } // Call the method if (isSplatted) { final RubyArray argumentsArray = (RubyArray) argumentsObjects[0]; return method.call(frame.pack(), self, blockObject, argumentsArray.asList().toArray()); } else { return method.call(frame.pack(), self, blockObject, argumentsObjects); } } @Override public Object isDefined(VirtualFrame frame) { final RubyContext context = getContext(); try { final RubyBasicObject self = context.getCoreLibrary().box(frame.getArguments(RubyArguments.class).getSelf()); final RubyBasicObject receiverRubyObject = context.getCoreLibrary().box(self); final RubyMethod method = receiverRubyObject.getRubyClass().getSuperclass().lookupMethod(name); if (method == null || method.isUndefined() || !method.isVisibleTo(self)) { return NilPlaceholder.INSTANCE; } else { return context.makeString("super"); } } catch (Exception e) { return NilPlaceholder.INSTANCE; } } }