Stuart McCulloch | 26e7a5a | 2011-10-17 10:31:43 +0000 | [diff] [blame^] | 1 | package aQute.bnd.compatibility; |
| 2 | |
| 3 | import java.io.*; |
| 4 | import java.util.*; |
| 5 | |
| 6 | public class Scope { |
| 7 | final Map<String, Scope> children = new LinkedHashMap<String, Scope>(); |
| 8 | |
| 9 | // class: slashed name |
| 10 | // field: name ":" typed |
| 11 | // constructor: ":(" typed* ")" typed |
| 12 | // method: name ":(" typed* ")" typed |
| 13 | final String name; |
| 14 | |
| 15 | Access access; |
| 16 | Kind kind; |
| 17 | Scope enclosing; |
| 18 | Scope declaring; |
| 19 | GenericParameter typeVars[]; |
| 20 | Map<String, String[]> name2bounds; |
| 21 | |
| 22 | // class: super |
| 23 | // field: type |
| 24 | // constructor: void |
| 25 | // method: return |
| 26 | GenericType base; |
| 27 | |
| 28 | // class: interfaces |
| 29 | // constructor: args |
| 30 | // method: args |
| 31 | GenericType[] parameters; |
| 32 | |
| 33 | // constructor: exceptions |
| 34 | // method: exceptions |
| 35 | GenericType[] exceptions; |
| 36 | |
| 37 | // class: super interfaces* |
| 38 | // field: type |
| 39 | // constructor: void arguments* |
| 40 | // method: return arguments* |
| 41 | |
| 42 | public Scope(Access access, Kind kind, String name) { |
| 43 | this.access = access; |
| 44 | this.kind = kind; |
| 45 | this.name = name; |
| 46 | } |
| 47 | |
| 48 | Scope getScope(String name) { |
| 49 | Scope s = children.get(name); |
| 50 | if (s != null) |
| 51 | return s; |
| 52 | |
| 53 | s = new Scope(Access.UNKNOWN, Kind.UNKNOWN, name); |
| 54 | children.put(name, s); |
| 55 | s.declaring = this; |
| 56 | return s; |
| 57 | } |
| 58 | |
| 59 | public void setParameterTypes(GenericType[] convert) { |
| 60 | this.parameters = convert; |
| 61 | } |
| 62 | |
| 63 | public void setExceptionTypes(GenericType[] convert) { |
| 64 | this.exceptions = convert; |
| 65 | } |
| 66 | |
| 67 | public void setBase(GenericType typeSignature) { |
| 68 | base = typeSignature; |
| 69 | } |
| 70 | |
| 71 | public String toString() { |
| 72 | StringBuilder sb = new StringBuilder(); |
| 73 | |
| 74 | if ( typeVars != null && typeVars.length !=0) { |
| 75 | sb.append("<"); |
| 76 | for ( GenericParameter v : typeVars) { |
| 77 | sb.append(v); |
| 78 | } |
| 79 | sb.append(">"); |
| 80 | } |
| 81 | sb.append(access.toString()); |
| 82 | sb.append(" "); |
| 83 | sb.append(kind.toString()); |
| 84 | sb.append( " "); |
| 85 | sb.append( name ); |
| 86 | return sb.toString(); |
| 87 | } |
| 88 | |
| 89 | public void report(Appendable a, int indent) throws IOException { |
| 90 | for (int i = 0; i < indent; i++) |
| 91 | a.append(" "); |
| 92 | a.append(toString()); |
| 93 | a.append("\n"); |
| 94 | for (Scope s : children.values()) |
| 95 | s.report(a, indent + 1); |
| 96 | } |
| 97 | |
| 98 | public void add(Scope m) { |
| 99 | children.put(m.name, m); |
| 100 | |
| 101 | } |
| 102 | |
| 103 | public void setDeclaring(Scope declaring) { |
| 104 | this.declaring = declaring; |
| 105 | } |
| 106 | |
| 107 | public void setAccess(Access access) { |
| 108 | this.access = access; |
| 109 | } |
| 110 | |
| 111 | public void setEnclosing(Scope enclosing) { |
| 112 | this.enclosing = enclosing; |
| 113 | if (this.enclosing != null) { |
| 114 | this.enclosing.add(this); |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | public boolean isTop() { |
| 119 | return enclosing == null; |
| 120 | } |
| 121 | |
| 122 | public void setKind(Kind kind) { |
| 123 | this.kind = kind; |
| 124 | } |
| 125 | |
| 126 | static public String classIdentity(String name) { |
| 127 | return name.replace('.', '/'); |
| 128 | } |
| 129 | |
| 130 | static public String methodIdentity(String name, String descriptor) { |
| 131 | return name + ":" + descriptor; |
| 132 | } |
| 133 | |
| 134 | static public String constructorIdentity(String descriptor) { |
| 135 | return ":" + descriptor; |
| 136 | } |
| 137 | |
| 138 | static public String fieldIdentity(String name, String descriptor) { |
| 139 | return name + ":" + descriptor; |
| 140 | } |
| 141 | |
| 142 | public void cleanRoot() { |
| 143 | Iterator<Map.Entry<String, Scope>> i = children.entrySet().iterator(); |
| 144 | while (i.hasNext()) { |
| 145 | Map.Entry<String, Scope> entry = i.next(); |
| 146 | if (!entry.getValue().isTop()) |
| 147 | i.remove(); |
| 148 | } |
| 149 | } |
| 150 | |
| 151 | public void prune(EnumSet<Access> level) { |
| 152 | Iterator<Map.Entry<String, Scope>> i = children.entrySet().iterator(); |
| 153 | while (i.hasNext()) { |
| 154 | Map.Entry<String, Scope> entry = i.next(); |
| 155 | if (!level.contains(entry.getValue().access)) |
| 156 | i.remove(); |
| 157 | else |
| 158 | entry.getValue().prune(level); |
| 159 | } |
| 160 | } |
| 161 | |
| 162 | public void setGenericParameter(GenericParameter[] typeVars) { |
| 163 | this.typeVars = typeVars; |
| 164 | } |
| 165 | |
| 166 | } |