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annotate c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/HotSpotSignature.java @ 1421:6223633ce7dd

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changed VMExit/VMEntries to non-static, added eclipse c++ project, CIR interface changes
author Lukas Stadler <lukas.stadler@oracle.com>
date Fri, 23 Jul 2010 15:53:02 -0700
parents 44efca8a02d6
children 3483ec571caf
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1 package com.sun.hotspot.c1x;
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2
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3 import java.util.ArrayList;
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4 import java.util.List;
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5
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6 import com.sun.cri.ci.CiKind;
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7 import com.sun.cri.ri.RiSignature;
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8 import com.sun.cri.ri.RiType;
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9
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10 public class HotSpotSignature implements RiSignature {
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11
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12 private final List<String> arguments = new ArrayList<String>();
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13 private final String returnType;
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14 private final String originalString;
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15
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16 public HotSpotSignature(String signature) {
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17
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18 assert signature.length() > 0;
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19 this.originalString = signature;
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20
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21 if (signature.charAt(0) == '(') {
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22 int cur = 1;
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23 while (cur < signature.length() && signature.charAt(cur) != ')') {
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24 int nextCur = parseSignature(signature, cur);
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25 arguments.add(signature.substring(cur, nextCur));
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26 cur = nextCur;
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27 }
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28
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29 cur++;
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30 int nextCur = parseSignature(signature, cur);
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31 returnType = signature.substring(cur, nextCur);
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32 assert nextCur == signature.length();
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33 } else {
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34 returnType = null;
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35 }
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36 }
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37
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38 private int parseSignature(String signature, int cur) {
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39
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40 char first = signature.charAt(cur);
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41 switch (first) {
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42
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43 case '[':
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44 return parseSignature(signature, cur + 1);
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45
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46 case 'L':
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47 while (signature.charAt(cur) != ';')
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48 cur++;
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49 cur++;
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50 break;
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51
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52 case 'V':
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53 case 'I':
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54 case 'B':
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55 case 'C':
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56 case 'D':
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57 case 'F':
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58 case 'J':
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59 case 'S':
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60 case 'Z':
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61 cur++;
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62 break;
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63
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64 default:
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65 assert false;
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66
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67 }
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68
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69 return cur;
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70 }
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71
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72 @Override
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73 public int argumentCount(boolean withReceiver) {
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74 return arguments.size() + (withReceiver ? 1 : 0);
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75 }
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76
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77 @Override
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78 public CiKind argumentKindAt(int index) {
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79 CiKind kind = CiKind.fromTypeString(arguments.get(index));
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80 System.out.println("argument kind: " + index + " is " + kind);
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81 return kind;
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82 }
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83
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84 @Override
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85 public int argumentSlots(boolean withReceiver) {
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86
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87 int argSlots = 0;
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88 for (int i = 0; i < argumentCount(false); i++) {
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89 argSlots += argumentKindAt(i).sizeInSlots();
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90 }
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91
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92 return argSlots + (withReceiver ? 1 : 0);
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93 }
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94
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95 @Override
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96 public RiType argumentTypeAt(int index, RiType accessingClass) {
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97 System.out.println("argument type at " + index);
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98 Object accessor = null;
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99 if (accessingClass instanceof HotSpotType) {
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100 accessor = ((HotSpotType) accessingClass).klassOop;
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101 }
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102 return Compiler.getVMEntries().RiSignature_lookupType(arguments.get(index), accessor);
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103 }
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104
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105 @Override
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106 public String asString() {
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107 return originalString;
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108 }
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109
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110 @Override
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111 public CiKind returnKind() {
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112 return CiKind.fromTypeString(returnType);
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113 }
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114
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115 @Override
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116 public RiType returnType(RiType accessingClass) {
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117 return Compiler.getVMEntries().RiSignature_lookupType(returnType, accessingClass);
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118 }
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119
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120 }