Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/methods/arguments/ReadBlockArgumentNode.java @ 13529:856c2c294f84
Merge.
author | Christian Humer <christian.humer@gmail.com> |
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date | Tue, 07 Jan 2014 18:53:04 +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.methods.arguments; 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.core.*; /** * Read the block as a {@code Proc}. */ @NodeInfo(shortName = "read-block-argument") public class ReadBlockArgumentNode extends RubyNode { private final boolean undefinedIfNotPresent; public ReadBlockArgumentNode(RubyContext context, SourceSection sourceSection, boolean undefinedIfNotPresent) { super(context, sourceSection); this.undefinedIfNotPresent = undefinedIfNotPresent; } @Override public Object execute(VirtualFrame frame) { final RubyArguments arguments = frame.getArguments(RubyArguments.class); final RubyProc block = arguments.getBlock(); if (block == null) { if (undefinedIfNotPresent) { return UndefinedPlaceholder.INSTANCE; } else { return NilPlaceholder.INSTANCE; } } else { return block; } } }