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13514
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1 /*
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2 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
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3 * code is released under a tri EPL/GPL/LGPL license. You can use it,
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4 * redistribute it and/or modify it under the terms of the:
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5 *
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6 * Eclipse Public License version 1.0
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7 * GNU General Public License version 2
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8 * GNU Lesser General Public License version 2.1
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9 */
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10 package com.oracle.truffle.ruby.nodes.cast;
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11
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12 import com.oracle.truffle.api.*;
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13 import com.oracle.truffle.api.dsl.*;
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14 import com.oracle.truffle.api.frame.*;
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15 import com.oracle.truffle.api.nodes.*;
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16 import com.oracle.truffle.ruby.nodes.*;
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17 import com.oracle.truffle.ruby.nodes.call.*;
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18 import com.oracle.truffle.ruby.runtime.*;
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19 import com.oracle.truffle.ruby.runtime.core.*;
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20 import com.oracle.truffle.ruby.runtime.objects.*;
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21
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22 /**
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23 * Casts an object to a Ruby Proc object.
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24 */
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25 @NodeInfo(shortName = "cast-proc")
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26 @NodeChild("child")
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27 public abstract class ProcCastNode extends RubyNode {
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28
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29 @Child protected DispatchHeadNode toProc;
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30
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31 public ProcCastNode(RubyContext context, SourceSection sourceSection) {
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32 super(context, sourceSection);
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33 toProc = adoptChild(new DispatchHeadNode(context, getSourceSection(), "to_proc", false));
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34 }
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35
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36 public ProcCastNode(ProcCastNode prev) {
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37 super(prev);
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38 toProc = adoptChild(prev.toProc);
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39 }
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40
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41 @Specialization
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42 public NilPlaceholder doNil(NilPlaceholder nil) {
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43 return nil;
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44 }
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45
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46 @Specialization
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47 public RubyProc doRubyProc(RubyProc proc) {
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48 return proc;
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49 }
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50
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51 @Specialization
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52 public RubyProc doObject(VirtualFrame frame, RubyBasicObject object) {
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53 return (RubyProc) toProc.dispatch(frame, object, null);
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54 }
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55
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56 }
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