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| 1 | +using System; |
| 2 | +using System.Text; |
| 3 | +using System.Collections.Generic; |
| 4 | + |
| 5 | +namespace BitterFudge.Proguard.Build |
| 6 | +{ |
| 7 | + class JniMember |
| 8 | + { |
| 9 | + readonly string name; |
| 10 | + readonly string signature; |
| 11 | + |
| 12 | + public JniMember (string name, string signature) |
| 13 | + { |
| 14 | + this.name = name; |
| 15 | + this.signature = signature; |
| 16 | + } |
| 17 | + |
| 18 | + public string Name { |
| 19 | + get { return name; } |
| 20 | + } |
| 21 | + |
| 22 | + public string Signature { |
| 23 | + get { return signature; } |
| 24 | + } |
| 25 | + |
| 26 | + public override string ToString () |
| 27 | + { |
| 28 | + var name = Name; |
| 29 | + if (name == ".ctor") |
| 30 | + name = "<init>"; |
| 31 | + |
| 32 | + var e = Signature.GetEnumerator (); |
| 33 | + if (!e.MoveNext ()) |
| 34 | + throw new FormatException ("Invalid signature"); |
| 35 | + |
| 36 | + var str = Parse (e, name); |
| 37 | + |
| 38 | + if (e.MoveNext ()) |
| 39 | + throw new FormatException ("Invalid signature"); |
| 40 | + |
| 41 | + return str; |
| 42 | + } |
| 43 | + |
| 44 | + string Parse (CharEnumerator e, string name = null) |
| 45 | + { |
| 46 | + return ParseMethod (e, name) ?? ParsePrimitive (e, name) ?? ParseArray (e, name) ?? ParseClass (e, name); |
| 47 | + } |
| 48 | + |
| 49 | + string ParseMethod (CharEnumerator e, string name = null) |
| 50 | + { |
| 51 | + if (e.Current != '(') |
| 52 | + return null; |
| 53 | + |
| 54 | + List<string> args = new List<string> (); |
| 55 | + if (!e.MoveNext ()) |
| 56 | + throw new FormatException (); |
| 57 | + while (e.Current != ')') { |
| 58 | + args.Add (Parse (e)); |
| 59 | + if (!e.MoveNext ()) |
| 60 | + throw new FormatException (); |
| 61 | + } |
| 62 | + |
| 63 | + if (!e.MoveNext ()) |
| 64 | + throw new FormatException (); |
| 65 | + var returnType = Parse (e); |
| 66 | + |
| 67 | + var sb = new StringBuilder (); |
| 68 | + if (returnType != "void" || name != "<init>") { |
| 69 | + sb.Append (returnType); |
| 70 | + sb.Append (' '); |
| 71 | + } |
| 72 | + if (name != null) { |
| 73 | + sb.Append (name); |
| 74 | + } |
| 75 | + sb.Append ("("); |
| 76 | + sb.Append (String.Join (", ", args)); |
| 77 | + sb.Append (")"); |
| 78 | + return sb.ToString (); |
| 79 | + } |
| 80 | + |
| 81 | + string ParsePrimitive (CharEnumerator e, string name = null) |
| 82 | + { |
| 83 | + string type; |
| 84 | + switch (e.Current) { |
| 85 | + case 'V': |
| 86 | + type = "void"; |
| 87 | + break; |
| 88 | + case 'Z': |
| 89 | + type = "boolean"; |
| 90 | + break; |
| 91 | + case 'B': |
| 92 | + type = "byte"; |
| 93 | + break; |
| 94 | + case 'C': |
| 95 | + type = "char"; |
| 96 | + break; |
| 97 | + case 'S': |
| 98 | + type = "short"; |
| 99 | + break; |
| 100 | + case 'I': |
| 101 | + type = "int"; |
| 102 | + break; |
| 103 | + case 'J': |
| 104 | + type = "long"; |
| 105 | + break; |
| 106 | + case 'F': |
| 107 | + type = "float"; |
| 108 | + break; |
| 109 | + case 'D': |
| 110 | + type = "double"; |
| 111 | + break; |
| 112 | + default: |
| 113 | + return null; |
| 114 | + } |
| 115 | + |
| 116 | + if (name == null) |
| 117 | + return type; |
| 118 | + return String.Concat (type, " ", name); |
| 119 | + } |
| 120 | + |
| 121 | + string ParseArray (CharEnumerator e, string name = null) |
| 122 | + { |
| 123 | + if (e.Current != '[') |
| 124 | + return null; |
| 125 | + |
| 126 | + if (!e.MoveNext ()) |
| 127 | + throw new FormatException (); |
| 128 | + |
| 129 | + var type = Parse (e); |
| 130 | + if (name == null) |
| 131 | + return type; |
| 132 | + return String.Concat (type, " ", name); |
| 133 | + } |
| 134 | + |
| 135 | + string ParseClass (CharEnumerator e, string name = null) |
| 136 | + { |
| 137 | + if (e.Current != 'L') |
| 138 | + return null; |
| 139 | + |
| 140 | + var sb = new StringBuilder (); |
| 141 | + if (!e.MoveNext ()) |
| 142 | + throw new FormatException (); |
| 143 | + while (e.Current != ';') { |
| 144 | + sb.Append (e.Current == '/' ? '.' : e.Current); |
| 145 | + if (!e.MoveNext ()) |
| 146 | + throw new FormatException (); |
| 147 | + } |
| 148 | + |
| 149 | + if (name != null) { |
| 150 | + sb.Append (' '); |
| 151 | + sb.Append (name); |
| 152 | + } |
| 153 | + return sb.ToString (); |
| 154 | + } |
| 155 | + |
| 156 | + public override bool Equals (object obj) |
| 157 | + { |
| 158 | + if (obj == null) |
| 159 | + return false; |
| 160 | + |
| 161 | + var rec = obj as JniMember; |
| 162 | + if (rec == null) |
| 163 | + return false; |
| 164 | + |
| 165 | + return this.Name == rec.Name && this.Signature == rec.Signature; |
| 166 | + } |
| 167 | + |
| 168 | + public override int GetHashCode () |
| 169 | + { |
| 170 | + var hash = name != null ? name.GetHashCode () : 0; |
| 171 | + hash ^= signature != null ? signature.GetHashCode () : 0; |
| 172 | + return hash; |
| 173 | + } |
| 174 | + |
| 175 | + public static bool operator == (JniMember a, JniMember b) |
| 176 | + { |
| 177 | + return ReferenceEquals (a, b) || (!ReferenceEquals (a, null) && a.Equals (b)); |
| 178 | + } |
| 179 | + |
| 180 | + public static bool operator != (JniMember a, JniMember b) |
| 181 | + { |
| 182 | + return !(a == b); |
| 183 | + } |
| 184 | + } |
| 185 | +} |
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