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comparison graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/controlflow/SLFunctionBodyNode.java @ 13821:b16ec83edc73

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Documentation and more refactoring of Simple Language
author Christian Wimmer <christian.wimmer@oracle.com>
date Wed, 29 Jan 2014 20:45:43 -0800
parents 7c418666c6c9
children 64c77f0577bb
comparison
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13820:20e7727588e8 13821:b16ec83edc73
1 /* 1 /*
2 * Copyright (c) 2012, 2012, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
22 */ 22 */
23 package com.oracle.truffle.sl.nodes.controlflow; 23 package com.oracle.truffle.sl.nodes.controlflow;
24 24
25 import com.oracle.truffle.api.frame.*; 25 import com.oracle.truffle.api.frame.*;
26 import com.oracle.truffle.api.nodes.*; 26 import com.oracle.truffle.api.nodes.*;
27 import com.oracle.truffle.api.utilities.*;
27 import com.oracle.truffle.sl.nodes.*; 28 import com.oracle.truffle.sl.nodes.*;
28 import com.oracle.truffle.sl.runtime.*; 29 import com.oracle.truffle.sl.runtime.*;
29 30
31 @NodeInfo(shortName = "body")
30 public class SLFunctionBodyNode extends SLExpressionNode { 32 public class SLFunctionBodyNode extends SLExpressionNode {
31 33
32 @Child private SLStatementNode body; 34 @Child private SLStatementNode bodyNode;
33 35
34 private FrameDescriptor frameDescriptor; 36 private final BranchProfile exceptionTaken = new BranchProfile();
37 private final BranchProfile nullTaken = new BranchProfile();
35 38
36 public SLFunctionBodyNode(FrameDescriptor frameDescriptor, SLStatementNode body) { 39 public SLFunctionBodyNode(SLStatementNode bodyNode) {
37 this.frameDescriptor = frameDescriptor; 40 this.bodyNode = adoptChild(bodyNode);
38 this.body = adoptChild(body);
39 } 41 }
40 42
41 @Override 43 @Override
42 public Object executeGeneric(VirtualFrame frame) { 44 public Object executeGeneric(VirtualFrame frame) {
43 try { 45 try {
44 body.executeVoid(frame); 46 bodyNode.executeVoid(frame);
45 } catch (SLReturnException ex) { 47 } catch (SLReturnException ex) {
48 exceptionTaken.enter();
46 return ex.getResult(); 49 return ex.getResult();
47 } 50 }
48 return SLNull.INSTANCE; 51 nullTaken.enter();
49 } 52 return SLNull.SINGLETON;
50
51 @Override
52 public Node copy() {
53 SLFunctionBodyNode copy = (SLFunctionBodyNode) super.copy();
54 copy.frameDescriptor = frameDescriptor.shallowCopy();
55 return copy;
56 }
57
58 public FrameDescriptor getFrameDescriptor() {
59 return frameDescriptor;
60 } 53 }
61 } 54 }