Wed, 27 Apr 2016 01:34:52 +0800
Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. Oracle designates this |
aoqi@0 | 8 | * particular file as subject to the "Classpath" exception as provided |
aoqi@0 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
aoqi@0 | 10 | * |
aoqi@0 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 15 | * accompanied this code). |
aoqi@0 | 16 | * |
aoqi@0 | 17 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 20 | * |
aoqi@0 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 22 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 23 | * questions. |
aoqi@0 | 24 | */ |
aoqi@0 | 25 | |
aoqi@0 | 26 | package com.sun.tools.javac.code; |
aoqi@0 | 27 | |
aoqi@0 | 28 | import java.lang.annotation.Annotation; |
aoqi@0 | 29 | import java.util.Collections; |
aoqi@0 | 30 | import java.util.EnumMap; |
aoqi@0 | 31 | import java.util.EnumSet; |
aoqi@0 | 32 | import java.util.Map; |
aoqi@0 | 33 | import java.util.Set; |
aoqi@0 | 34 | |
aoqi@0 | 35 | import javax.lang.model.type.*; |
aoqi@0 | 36 | |
aoqi@0 | 37 | import com.sun.tools.javac.code.Symbol.*; |
aoqi@0 | 38 | import com.sun.tools.javac.util.*; |
aoqi@0 | 39 | import static com.sun.tools.javac.code.BoundKind.*; |
aoqi@0 | 40 | import static com.sun.tools.javac.code.Flags.*; |
aoqi@0 | 41 | import static com.sun.tools.javac.code.Kinds.*; |
aoqi@0 | 42 | import static com.sun.tools.javac.code.TypeTag.*; |
aoqi@0 | 43 | |
aoqi@0 | 44 | /** This class represents Java types. The class itself defines the behavior of |
aoqi@0 | 45 | * the following types: |
aoqi@0 | 46 | * <pre> |
aoqi@0 | 47 | * base types (tags: BYTE, CHAR, SHORT, INT, LONG, FLOAT, DOUBLE, BOOLEAN), |
aoqi@0 | 48 | * type `void' (tag: VOID), |
aoqi@0 | 49 | * the bottom type (tag: BOT), |
aoqi@0 | 50 | * the missing type (tag: NONE). |
aoqi@0 | 51 | * </pre> |
aoqi@0 | 52 | * <p>The behavior of the following types is defined in subclasses, which are |
aoqi@0 | 53 | * all static inner classes of this class: |
aoqi@0 | 54 | * <pre> |
aoqi@0 | 55 | * class types (tag: CLASS, class: ClassType), |
aoqi@0 | 56 | * array types (tag: ARRAY, class: ArrayType), |
aoqi@0 | 57 | * method types (tag: METHOD, class: MethodType), |
aoqi@0 | 58 | * package types (tag: PACKAGE, class: PackageType), |
aoqi@0 | 59 | * type variables (tag: TYPEVAR, class: TypeVar), |
aoqi@0 | 60 | * type arguments (tag: WILDCARD, class: WildcardType), |
aoqi@0 | 61 | * generic method types (tag: FORALL, class: ForAll), |
aoqi@0 | 62 | * the error type (tag: ERROR, class: ErrorType). |
aoqi@0 | 63 | * </pre> |
aoqi@0 | 64 | * |
aoqi@0 | 65 | * <p><b>This is NOT part of any supported API. |
aoqi@0 | 66 | * If you write code that depends on this, you do so at your own risk. |
aoqi@0 | 67 | * This code and its internal interfaces are subject to change or |
aoqi@0 | 68 | * deletion without notice.</b> |
aoqi@0 | 69 | * |
aoqi@0 | 70 | * @see TypeTag |
aoqi@0 | 71 | */ |
aoqi@0 | 72 | public abstract class Type extends AnnoConstruct implements TypeMirror { |
aoqi@0 | 73 | |
aoqi@0 | 74 | /** Constant type: no type at all. */ |
aoqi@0 | 75 | public static final JCNoType noType = new JCNoType() { |
aoqi@0 | 76 | @Override |
aoqi@0 | 77 | public String toString() { |
aoqi@0 | 78 | return "none"; |
aoqi@0 | 79 | } |
aoqi@0 | 80 | }; |
aoqi@0 | 81 | |
aoqi@0 | 82 | /** Constant type: special type to be used during recovery of deferred expressions. */ |
aoqi@0 | 83 | public static final JCNoType recoveryType = new JCNoType(){ |
aoqi@0 | 84 | @Override |
aoqi@0 | 85 | public String toString() { |
aoqi@0 | 86 | return "recovery"; |
aoqi@0 | 87 | } |
aoqi@0 | 88 | }; |
aoqi@0 | 89 | |
aoqi@0 | 90 | /** Constant type: special type to be used for marking stuck trees. */ |
aoqi@0 | 91 | public static final JCNoType stuckType = new JCNoType() { |
aoqi@0 | 92 | @Override |
aoqi@0 | 93 | public String toString() { |
aoqi@0 | 94 | return "stuck"; |
aoqi@0 | 95 | } |
aoqi@0 | 96 | }; |
aoqi@0 | 97 | |
aoqi@0 | 98 | /** If this switch is turned on, the names of type variables |
aoqi@0 | 99 | * and anonymous classes are printed with hashcodes appended. |
aoqi@0 | 100 | */ |
aoqi@0 | 101 | public static boolean moreInfo = false; |
aoqi@0 | 102 | |
aoqi@0 | 103 | /** The defining class / interface / package / type variable. |
aoqi@0 | 104 | */ |
aoqi@0 | 105 | public TypeSymbol tsym; |
aoqi@0 | 106 | |
aoqi@0 | 107 | /** |
aoqi@0 | 108 | * Checks if the current type tag is equal to the given tag. |
aoqi@0 | 109 | * @return true if tag is equal to the current type tag. |
aoqi@0 | 110 | */ |
aoqi@0 | 111 | public boolean hasTag(TypeTag tag) { |
aoqi@0 | 112 | return tag == getTag(); |
aoqi@0 | 113 | } |
aoqi@0 | 114 | |
aoqi@0 | 115 | /** |
aoqi@0 | 116 | * Returns the current type tag. |
aoqi@0 | 117 | * @return the value of the current type tag. |
aoqi@0 | 118 | */ |
aoqi@0 | 119 | public abstract TypeTag getTag(); |
aoqi@0 | 120 | |
aoqi@0 | 121 | public boolean isNumeric() { |
aoqi@0 | 122 | return false; |
aoqi@0 | 123 | } |
aoqi@0 | 124 | |
aoqi@0 | 125 | public boolean isPrimitive() { |
aoqi@0 | 126 | return false; |
aoqi@0 | 127 | } |
aoqi@0 | 128 | |
aoqi@0 | 129 | public boolean isPrimitiveOrVoid() { |
aoqi@0 | 130 | return false; |
aoqi@0 | 131 | } |
aoqi@0 | 132 | |
aoqi@0 | 133 | public boolean isReference() { |
aoqi@0 | 134 | return false; |
aoqi@0 | 135 | } |
aoqi@0 | 136 | |
aoqi@0 | 137 | public boolean isNullOrReference() { |
aoqi@0 | 138 | return false; |
aoqi@0 | 139 | } |
aoqi@0 | 140 | |
aoqi@0 | 141 | public boolean isPartial() { |
aoqi@0 | 142 | return false; |
aoqi@0 | 143 | } |
aoqi@0 | 144 | |
aoqi@0 | 145 | /** |
aoqi@0 | 146 | * The constant value of this type, null if this type does not |
aoqi@0 | 147 | * have a constant value attribute. Only primitive types and |
aoqi@0 | 148 | * strings (ClassType) can have a constant value attribute. |
aoqi@0 | 149 | * @return the constant value attribute of this type |
aoqi@0 | 150 | */ |
aoqi@0 | 151 | public Object constValue() { |
aoqi@0 | 152 | return null; |
aoqi@0 | 153 | } |
aoqi@0 | 154 | |
aoqi@0 | 155 | /** Is this a constant type whose value is false? |
aoqi@0 | 156 | */ |
aoqi@0 | 157 | public boolean isFalse() { |
aoqi@0 | 158 | return false; |
aoqi@0 | 159 | } |
aoqi@0 | 160 | |
aoqi@0 | 161 | /** Is this a constant type whose value is true? |
aoqi@0 | 162 | */ |
aoqi@0 | 163 | public boolean isTrue() { |
aoqi@0 | 164 | return false; |
aoqi@0 | 165 | } |
aoqi@0 | 166 | |
aoqi@0 | 167 | /** |
aoqi@0 | 168 | * Get the representation of this type used for modelling purposes. |
aoqi@0 | 169 | * By default, this is itself. For ErrorType, a different value |
aoqi@0 | 170 | * may be provided. |
aoqi@0 | 171 | */ |
aoqi@0 | 172 | public Type getModelType() { |
aoqi@0 | 173 | return this; |
aoqi@0 | 174 | } |
aoqi@0 | 175 | |
aoqi@0 | 176 | public static List<Type> getModelTypes(List<Type> ts) { |
aoqi@0 | 177 | ListBuffer<Type> lb = new ListBuffer<>(); |
aoqi@0 | 178 | for (Type t: ts) |
aoqi@0 | 179 | lb.append(t.getModelType()); |
aoqi@0 | 180 | return lb.toList(); |
aoqi@0 | 181 | } |
aoqi@0 | 182 | |
aoqi@0 | 183 | /**For ErrorType, returns the original type, otherwise returns the type itself. |
aoqi@0 | 184 | */ |
aoqi@0 | 185 | public Type getOriginalType() { |
aoqi@0 | 186 | return this; |
aoqi@0 | 187 | } |
aoqi@0 | 188 | |
aoqi@0 | 189 | public <R,S> R accept(Type.Visitor<R,S> v, S s) { return v.visitType(this, s); } |
aoqi@0 | 190 | |
aoqi@0 | 191 | /** Define a type given its tag and type symbol |
aoqi@0 | 192 | */ |
aoqi@0 | 193 | public Type(TypeSymbol tsym) { |
aoqi@0 | 194 | this.tsym = tsym; |
aoqi@0 | 195 | } |
aoqi@0 | 196 | |
aoqi@0 | 197 | /** An abstract class for mappings from types to types |
aoqi@0 | 198 | */ |
aoqi@0 | 199 | public static abstract class Mapping { |
aoqi@0 | 200 | private String name; |
aoqi@0 | 201 | public Mapping(String name) { |
aoqi@0 | 202 | this.name = name; |
aoqi@0 | 203 | } |
aoqi@0 | 204 | public abstract Type apply(Type t); |
aoqi@0 | 205 | public String toString() { |
aoqi@0 | 206 | return name; |
aoqi@0 | 207 | } |
aoqi@0 | 208 | } |
aoqi@0 | 209 | |
aoqi@0 | 210 | /** map a type function over all immediate descendants of this type |
aoqi@0 | 211 | */ |
aoqi@0 | 212 | public Type map(Mapping f) { |
aoqi@0 | 213 | return this; |
aoqi@0 | 214 | } |
aoqi@0 | 215 | |
aoqi@0 | 216 | /** map a type function over a list of types |
aoqi@0 | 217 | */ |
aoqi@0 | 218 | public static List<Type> map(List<Type> ts, Mapping f) { |
aoqi@0 | 219 | if (ts.nonEmpty()) { |
aoqi@0 | 220 | List<Type> tail1 = map(ts.tail, f); |
aoqi@0 | 221 | Type t = f.apply(ts.head); |
aoqi@0 | 222 | if (tail1 != ts.tail || t != ts.head) |
aoqi@0 | 223 | return tail1.prepend(t); |
aoqi@0 | 224 | } |
aoqi@0 | 225 | return ts; |
aoqi@0 | 226 | } |
aoqi@0 | 227 | |
aoqi@0 | 228 | /** Define a constant type, of the same kind as this type |
aoqi@0 | 229 | * and with given constant value |
aoqi@0 | 230 | */ |
aoqi@0 | 231 | public Type constType(Object constValue) { |
aoqi@0 | 232 | throw new AssertionError(); |
aoqi@0 | 233 | } |
aoqi@0 | 234 | |
aoqi@0 | 235 | /** |
aoqi@0 | 236 | * If this is a constant type, return its underlying type. |
aoqi@0 | 237 | * Otherwise, return the type itself. |
aoqi@0 | 238 | */ |
aoqi@0 | 239 | public Type baseType() { |
aoqi@0 | 240 | return this; |
aoqi@0 | 241 | } |
aoqi@0 | 242 | |
aoqi@0 | 243 | public Type annotatedType(List<Attribute.TypeCompound> annos) { |
aoqi@0 | 244 | return new AnnotatedType(annos, this); |
aoqi@0 | 245 | } |
aoqi@0 | 246 | |
aoqi@0 | 247 | public boolean isAnnotated() { |
aoqi@0 | 248 | return false; |
aoqi@0 | 249 | } |
aoqi@0 | 250 | |
aoqi@0 | 251 | /** |
aoqi@0 | 252 | * If this is an annotated type, return the underlying type. |
aoqi@0 | 253 | * Otherwise, return the type itself. |
aoqi@0 | 254 | */ |
aoqi@0 | 255 | public Type unannotatedType() { |
aoqi@0 | 256 | return this; |
aoqi@0 | 257 | } |
aoqi@0 | 258 | |
aoqi@0 | 259 | @Override |
aoqi@0 | 260 | public List<Attribute.TypeCompound> getAnnotationMirrors() { |
aoqi@0 | 261 | return List.nil(); |
aoqi@0 | 262 | } |
aoqi@0 | 263 | |
aoqi@0 | 264 | |
aoqi@0 | 265 | @Override |
aoqi@0 | 266 | public <A extends Annotation> A getAnnotation(Class<A> annotationType) { |
aoqi@0 | 267 | return null; |
aoqi@0 | 268 | } |
aoqi@0 | 269 | |
aoqi@0 | 270 | |
aoqi@0 | 271 | @Override |
aoqi@0 | 272 | public <A extends Annotation> A[] getAnnotationsByType(Class<A> annotationType) { |
aoqi@0 | 273 | @SuppressWarnings("unchecked") |
aoqi@0 | 274 | A[] tmp = (A[]) java.lang.reflect.Array.newInstance(annotationType, 0); |
aoqi@0 | 275 | return tmp; |
aoqi@0 | 276 | } |
aoqi@0 | 277 | |
aoqi@0 | 278 | /** Return the base types of a list of types. |
aoqi@0 | 279 | */ |
aoqi@0 | 280 | public static List<Type> baseTypes(List<Type> ts) { |
aoqi@0 | 281 | if (ts.nonEmpty()) { |
aoqi@0 | 282 | Type t = ts.head.baseType(); |
aoqi@0 | 283 | List<Type> baseTypes = baseTypes(ts.tail); |
aoqi@0 | 284 | if (t != ts.head || baseTypes != ts.tail) |
aoqi@0 | 285 | return baseTypes.prepend(t); |
aoqi@0 | 286 | } |
aoqi@0 | 287 | return ts; |
aoqi@0 | 288 | } |
aoqi@0 | 289 | |
aoqi@0 | 290 | /** The Java source which this type represents. |
aoqi@0 | 291 | */ |
aoqi@0 | 292 | public String toString() { |
aoqi@0 | 293 | String s = (tsym == null || tsym.name == null) |
aoqi@0 | 294 | ? "<none>" |
aoqi@0 | 295 | : tsym.name.toString(); |
aoqi@0 | 296 | if (moreInfo && hasTag(TYPEVAR)) { |
aoqi@0 | 297 | s = s + hashCode(); |
aoqi@0 | 298 | } |
aoqi@0 | 299 | return s; |
aoqi@0 | 300 | } |
aoqi@0 | 301 | |
aoqi@0 | 302 | /** |
aoqi@0 | 303 | * The Java source which this type list represents. A List is |
aoqi@0 | 304 | * represented as a comma-spearated listing of the elements in |
aoqi@0 | 305 | * that list. |
aoqi@0 | 306 | */ |
aoqi@0 | 307 | public static String toString(List<Type> ts) { |
aoqi@0 | 308 | if (ts.isEmpty()) { |
aoqi@0 | 309 | return ""; |
aoqi@0 | 310 | } else { |
aoqi@0 | 311 | StringBuilder buf = new StringBuilder(); |
aoqi@0 | 312 | buf.append(ts.head.toString()); |
aoqi@0 | 313 | for (List<Type> l = ts.tail; l.nonEmpty(); l = l.tail) |
aoqi@0 | 314 | buf.append(",").append(l.head.toString()); |
aoqi@0 | 315 | return buf.toString(); |
aoqi@0 | 316 | } |
aoqi@0 | 317 | } |
aoqi@0 | 318 | |
aoqi@0 | 319 | /** |
aoqi@0 | 320 | * The constant value of this type, converted to String |
aoqi@0 | 321 | */ |
aoqi@0 | 322 | public String stringValue() { |
aoqi@0 | 323 | Object cv = Assert.checkNonNull(constValue()); |
aoqi@0 | 324 | return cv.toString(); |
aoqi@0 | 325 | } |
aoqi@0 | 326 | |
aoqi@0 | 327 | /** |
aoqi@0 | 328 | * This method is analogous to isSameType, but weaker, since we |
aoqi@0 | 329 | * never complete classes. Where isSameType would complete a |
aoqi@0 | 330 | * class, equals assumes that the two types are different. |
aoqi@0 | 331 | */ |
aoqi@0 | 332 | @Override |
aoqi@0 | 333 | public boolean equals(Object t) { |
aoqi@0 | 334 | return super.equals(t); |
aoqi@0 | 335 | } |
aoqi@0 | 336 | |
aoqi@0 | 337 | @Override |
aoqi@0 | 338 | public int hashCode() { |
aoqi@0 | 339 | return super.hashCode(); |
aoqi@0 | 340 | } |
aoqi@0 | 341 | |
aoqi@0 | 342 | public String argtypes(boolean varargs) { |
aoqi@0 | 343 | List<Type> args = getParameterTypes(); |
aoqi@0 | 344 | if (!varargs) return args.toString(); |
aoqi@0 | 345 | StringBuilder buf = new StringBuilder(); |
aoqi@0 | 346 | while (args.tail.nonEmpty()) { |
aoqi@0 | 347 | buf.append(args.head); |
aoqi@0 | 348 | args = args.tail; |
aoqi@0 | 349 | buf.append(','); |
aoqi@0 | 350 | } |
aoqi@0 | 351 | if (args.head.unannotatedType().hasTag(ARRAY)) { |
aoqi@0 | 352 | buf.append(((ArrayType)args.head.unannotatedType()).elemtype); |
aoqi@0 | 353 | if (args.head.getAnnotationMirrors().nonEmpty()) { |
aoqi@0 | 354 | buf.append(args.head.getAnnotationMirrors()); |
aoqi@0 | 355 | } |
aoqi@0 | 356 | buf.append("..."); |
aoqi@0 | 357 | } else { |
aoqi@0 | 358 | buf.append(args.head); |
aoqi@0 | 359 | } |
aoqi@0 | 360 | return buf.toString(); |
aoqi@0 | 361 | } |
aoqi@0 | 362 | |
aoqi@0 | 363 | /** Access methods. |
aoqi@0 | 364 | */ |
aoqi@0 | 365 | public List<Type> getTypeArguments() { return List.nil(); } |
aoqi@0 | 366 | public Type getEnclosingType() { return null; } |
aoqi@0 | 367 | public List<Type> getParameterTypes() { return List.nil(); } |
aoqi@0 | 368 | public Type getReturnType() { return null; } |
aoqi@0 | 369 | public Type getReceiverType() { return null; } |
aoqi@0 | 370 | public List<Type> getThrownTypes() { return List.nil(); } |
aoqi@0 | 371 | public Type getUpperBound() { return null; } |
aoqi@0 | 372 | public Type getLowerBound() { return null; } |
aoqi@0 | 373 | |
aoqi@0 | 374 | /** Navigation methods, these will work for classes, type variables, |
aoqi@0 | 375 | * foralls, but will return null for arrays and methods. |
aoqi@0 | 376 | */ |
aoqi@0 | 377 | |
aoqi@0 | 378 | /** Return all parameters of this type and all its outer types in order |
aoqi@0 | 379 | * outer (first) to inner (last). |
aoqi@0 | 380 | */ |
aoqi@0 | 381 | public List<Type> allparams() { return List.nil(); } |
aoqi@0 | 382 | |
aoqi@0 | 383 | /** Does this type contain "error" elements? |
aoqi@0 | 384 | */ |
aoqi@0 | 385 | public boolean isErroneous() { |
aoqi@0 | 386 | return false; |
aoqi@0 | 387 | } |
aoqi@0 | 388 | |
aoqi@0 | 389 | public static boolean isErroneous(List<Type> ts) { |
aoqi@0 | 390 | for (List<Type> l = ts; l.nonEmpty(); l = l.tail) |
aoqi@0 | 391 | if (l.head.isErroneous()) return true; |
aoqi@0 | 392 | return false; |
aoqi@0 | 393 | } |
aoqi@0 | 394 | |
aoqi@0 | 395 | /** Is this type parameterized? |
aoqi@0 | 396 | * A class type is parameterized if it has some parameters. |
aoqi@0 | 397 | * An array type is parameterized if its element type is parameterized. |
aoqi@0 | 398 | * All other types are not parameterized. |
aoqi@0 | 399 | */ |
aoqi@0 | 400 | public boolean isParameterized() { |
aoqi@0 | 401 | return false; |
aoqi@0 | 402 | } |
aoqi@0 | 403 | |
aoqi@0 | 404 | /** Is this type a raw type? |
aoqi@0 | 405 | * A class type is a raw type if it misses some of its parameters. |
aoqi@0 | 406 | * An array type is a raw type if its element type is raw. |
aoqi@0 | 407 | * All other types are not raw. |
aoqi@0 | 408 | * Type validation will ensure that the only raw types |
aoqi@0 | 409 | * in a program are types that miss all their type variables. |
aoqi@0 | 410 | */ |
aoqi@0 | 411 | public boolean isRaw() { |
aoqi@0 | 412 | return false; |
aoqi@0 | 413 | } |
aoqi@0 | 414 | |
aoqi@0 | 415 | public boolean isCompound() { |
aoqi@0 | 416 | return tsym.completer == null |
aoqi@0 | 417 | // Compound types can't have a completer. Calling |
aoqi@0 | 418 | // flags() will complete the symbol causing the |
aoqi@0 | 419 | // compiler to load classes unnecessarily. This led |
aoqi@0 | 420 | // to regression 6180021. |
aoqi@0 | 421 | && (tsym.flags() & COMPOUND) != 0; |
aoqi@0 | 422 | } |
aoqi@0 | 423 | |
aoqi@0 | 424 | public boolean isInterface() { |
aoqi@0 | 425 | return (tsym.flags() & INTERFACE) != 0; |
aoqi@0 | 426 | } |
aoqi@0 | 427 | |
aoqi@0 | 428 | public boolean isFinal() { |
aoqi@0 | 429 | return (tsym.flags() & FINAL) != 0; |
aoqi@0 | 430 | } |
aoqi@0 | 431 | |
aoqi@0 | 432 | /** |
aoqi@0 | 433 | * Does this type contain occurrences of type t? |
aoqi@0 | 434 | */ |
aoqi@0 | 435 | public boolean contains(Type t) { |
aoqi@0 | 436 | return t == this; |
aoqi@0 | 437 | } |
aoqi@0 | 438 | |
aoqi@0 | 439 | public static boolean contains(List<Type> ts, Type t) { |
aoqi@0 | 440 | for (List<Type> l = ts; |
aoqi@0 | 441 | l.tail != null /*inlined: l.nonEmpty()*/; |
aoqi@0 | 442 | l = l.tail) |
aoqi@0 | 443 | if (l.head.contains(t)) return true; |
aoqi@0 | 444 | return false; |
aoqi@0 | 445 | } |
aoqi@0 | 446 | |
aoqi@0 | 447 | /** Does this type contain an occurrence of some type in 'ts'? |
aoqi@0 | 448 | */ |
aoqi@0 | 449 | public boolean containsAny(List<Type> ts) { |
aoqi@0 | 450 | for (Type t : ts) |
aoqi@0 | 451 | if (this.contains(t)) return true; |
aoqi@0 | 452 | return false; |
aoqi@0 | 453 | } |
aoqi@0 | 454 | |
aoqi@0 | 455 | public static boolean containsAny(List<Type> ts1, List<Type> ts2) { |
aoqi@0 | 456 | for (Type t : ts1) |
aoqi@0 | 457 | if (t.containsAny(ts2)) return true; |
aoqi@0 | 458 | return false; |
aoqi@0 | 459 | } |
aoqi@0 | 460 | |
aoqi@0 | 461 | public static List<Type> filter(List<Type> ts, Filter<Type> tf) { |
aoqi@0 | 462 | ListBuffer<Type> buf = new ListBuffer<>(); |
aoqi@0 | 463 | for (Type t : ts) { |
aoqi@0 | 464 | if (tf.accepts(t)) { |
aoqi@0 | 465 | buf.append(t); |
aoqi@0 | 466 | } |
aoqi@0 | 467 | } |
aoqi@0 | 468 | return buf.toList(); |
aoqi@0 | 469 | } |
aoqi@0 | 470 | |
aoqi@0 | 471 | public boolean isSuperBound() { return false; } |
aoqi@0 | 472 | public boolean isExtendsBound() { return false; } |
aoqi@0 | 473 | public boolean isUnbound() { return false; } |
aoqi@0 | 474 | public Type withTypeVar(Type t) { return this; } |
aoqi@0 | 475 | |
aoqi@0 | 476 | /** The underlying method type of this type. |
aoqi@0 | 477 | */ |
aoqi@0 | 478 | public MethodType asMethodType() { throw new AssertionError(); } |
aoqi@0 | 479 | |
aoqi@0 | 480 | /** Complete loading all classes in this type. |
aoqi@0 | 481 | */ |
aoqi@0 | 482 | public void complete() {} |
aoqi@0 | 483 | |
aoqi@0 | 484 | public TypeSymbol asElement() { |
aoqi@0 | 485 | return tsym; |
aoqi@0 | 486 | } |
aoqi@0 | 487 | |
aoqi@0 | 488 | @Override |
aoqi@0 | 489 | public TypeKind getKind() { |
aoqi@0 | 490 | return TypeKind.OTHER; |
aoqi@0 | 491 | } |
aoqi@0 | 492 | |
aoqi@0 | 493 | @Override |
aoqi@0 | 494 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 495 | throw new AssertionError(); |
aoqi@0 | 496 | } |
aoqi@0 | 497 | |
aoqi@0 | 498 | public static class JCPrimitiveType extends Type |
aoqi@0 | 499 | implements javax.lang.model.type.PrimitiveType { |
aoqi@0 | 500 | |
aoqi@0 | 501 | TypeTag tag; |
aoqi@0 | 502 | |
aoqi@0 | 503 | public JCPrimitiveType(TypeTag tag, TypeSymbol tsym) { |
aoqi@0 | 504 | super(tsym); |
aoqi@0 | 505 | this.tag = tag; |
aoqi@0 | 506 | Assert.check(tag.isPrimitive); |
aoqi@0 | 507 | } |
aoqi@0 | 508 | |
aoqi@0 | 509 | @Override |
aoqi@0 | 510 | public boolean isNumeric() { |
aoqi@0 | 511 | return tag != BOOLEAN; |
aoqi@0 | 512 | } |
aoqi@0 | 513 | |
aoqi@0 | 514 | @Override |
aoqi@0 | 515 | public boolean isPrimitive() { |
aoqi@0 | 516 | return true; |
aoqi@0 | 517 | } |
aoqi@0 | 518 | |
aoqi@0 | 519 | @Override |
aoqi@0 | 520 | public TypeTag getTag() { |
aoqi@0 | 521 | return tag; |
aoqi@0 | 522 | } |
aoqi@0 | 523 | |
aoqi@0 | 524 | @Override |
aoqi@0 | 525 | public boolean isPrimitiveOrVoid() { |
aoqi@0 | 526 | return true; |
aoqi@0 | 527 | } |
aoqi@0 | 528 | |
aoqi@0 | 529 | /** Define a constant type, of the same kind as this type |
aoqi@0 | 530 | * and with given constant value |
aoqi@0 | 531 | */ |
aoqi@0 | 532 | @Override |
aoqi@0 | 533 | public Type constType(Object constValue) { |
aoqi@0 | 534 | final Object value = constValue; |
aoqi@0 | 535 | return new JCPrimitiveType(tag, tsym) { |
aoqi@0 | 536 | @Override |
aoqi@0 | 537 | public Object constValue() { |
aoqi@0 | 538 | return value; |
aoqi@0 | 539 | } |
aoqi@0 | 540 | @Override |
aoqi@0 | 541 | public Type baseType() { |
aoqi@0 | 542 | return tsym.type; |
aoqi@0 | 543 | } |
aoqi@0 | 544 | }; |
aoqi@0 | 545 | } |
aoqi@0 | 546 | |
aoqi@0 | 547 | /** |
aoqi@0 | 548 | * The constant value of this type, converted to String |
aoqi@0 | 549 | */ |
aoqi@0 | 550 | @Override |
aoqi@0 | 551 | public String stringValue() { |
aoqi@0 | 552 | Object cv = Assert.checkNonNull(constValue()); |
aoqi@0 | 553 | if (tag == BOOLEAN) { |
aoqi@0 | 554 | return ((Integer) cv).intValue() == 0 ? "false" : "true"; |
aoqi@0 | 555 | } |
aoqi@0 | 556 | else if (tag == CHAR) { |
aoqi@0 | 557 | return String.valueOf((char) ((Integer) cv).intValue()); |
aoqi@0 | 558 | } |
aoqi@0 | 559 | else { |
aoqi@0 | 560 | return cv.toString(); |
aoqi@0 | 561 | } |
aoqi@0 | 562 | } |
aoqi@0 | 563 | |
aoqi@0 | 564 | /** Is this a constant type whose value is false? |
aoqi@0 | 565 | */ |
aoqi@0 | 566 | @Override |
aoqi@0 | 567 | public boolean isFalse() { |
aoqi@0 | 568 | return |
aoqi@0 | 569 | tag == BOOLEAN && |
aoqi@0 | 570 | constValue() != null && |
aoqi@0 | 571 | ((Integer)constValue()).intValue() == 0; |
aoqi@0 | 572 | } |
aoqi@0 | 573 | |
aoqi@0 | 574 | /** Is this a constant type whose value is true? |
aoqi@0 | 575 | */ |
aoqi@0 | 576 | @Override |
aoqi@0 | 577 | public boolean isTrue() { |
aoqi@0 | 578 | return |
aoqi@0 | 579 | tag == BOOLEAN && |
aoqi@0 | 580 | constValue() != null && |
aoqi@0 | 581 | ((Integer)constValue()).intValue() != 0; |
aoqi@0 | 582 | } |
aoqi@0 | 583 | |
aoqi@0 | 584 | @Override |
aoqi@0 | 585 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 586 | return v.visitPrimitive(this, p); |
aoqi@0 | 587 | } |
aoqi@0 | 588 | |
aoqi@0 | 589 | @Override |
aoqi@0 | 590 | public TypeKind getKind() { |
aoqi@0 | 591 | switch (tag) { |
aoqi@0 | 592 | case BYTE: return TypeKind.BYTE; |
aoqi@0 | 593 | case CHAR: return TypeKind.CHAR; |
aoqi@0 | 594 | case SHORT: return TypeKind.SHORT; |
aoqi@0 | 595 | case INT: return TypeKind.INT; |
aoqi@0 | 596 | case LONG: return TypeKind.LONG; |
aoqi@0 | 597 | case FLOAT: return TypeKind.FLOAT; |
aoqi@0 | 598 | case DOUBLE: return TypeKind.DOUBLE; |
aoqi@0 | 599 | case BOOLEAN: return TypeKind.BOOLEAN; |
aoqi@0 | 600 | } |
aoqi@0 | 601 | throw new AssertionError(); |
aoqi@0 | 602 | } |
aoqi@0 | 603 | |
aoqi@0 | 604 | } |
aoqi@0 | 605 | |
aoqi@0 | 606 | public static class WildcardType extends Type |
aoqi@0 | 607 | implements javax.lang.model.type.WildcardType { |
aoqi@0 | 608 | |
aoqi@0 | 609 | public Type type; |
aoqi@0 | 610 | public BoundKind kind; |
aoqi@0 | 611 | public TypeVar bound; |
aoqi@0 | 612 | |
aoqi@0 | 613 | @Override |
aoqi@0 | 614 | public <R,S> R accept(Type.Visitor<R,S> v, S s) { |
aoqi@0 | 615 | return v.visitWildcardType(this, s); |
aoqi@0 | 616 | } |
aoqi@0 | 617 | |
aoqi@0 | 618 | public WildcardType(Type type, BoundKind kind, TypeSymbol tsym) { |
aoqi@0 | 619 | super(tsym); |
aoqi@0 | 620 | this.type = Assert.checkNonNull(type); |
aoqi@0 | 621 | this.kind = kind; |
aoqi@0 | 622 | } |
aoqi@0 | 623 | public WildcardType(WildcardType t, TypeVar bound) { |
aoqi@0 | 624 | this(t.type, t.kind, t.tsym, bound); |
aoqi@0 | 625 | } |
aoqi@0 | 626 | |
aoqi@0 | 627 | public WildcardType(Type type, BoundKind kind, TypeSymbol tsym, TypeVar bound) { |
aoqi@0 | 628 | this(type, kind, tsym); |
aoqi@0 | 629 | this.bound = bound; |
aoqi@0 | 630 | } |
aoqi@0 | 631 | |
aoqi@0 | 632 | @Override |
aoqi@0 | 633 | public TypeTag getTag() { |
aoqi@0 | 634 | return WILDCARD; |
aoqi@0 | 635 | } |
aoqi@0 | 636 | |
aoqi@0 | 637 | @Override |
aoqi@0 | 638 | public boolean contains(Type t) { |
aoqi@0 | 639 | return kind != UNBOUND && type.contains(t); |
aoqi@0 | 640 | } |
aoqi@0 | 641 | |
aoqi@0 | 642 | public boolean isSuperBound() { |
aoqi@0 | 643 | return kind == SUPER || |
aoqi@0 | 644 | kind == UNBOUND; |
aoqi@0 | 645 | } |
aoqi@0 | 646 | public boolean isExtendsBound() { |
aoqi@0 | 647 | return kind == EXTENDS || |
aoqi@0 | 648 | kind == UNBOUND; |
aoqi@0 | 649 | } |
aoqi@0 | 650 | public boolean isUnbound() { |
aoqi@0 | 651 | return kind == UNBOUND; |
aoqi@0 | 652 | } |
aoqi@0 | 653 | |
aoqi@0 | 654 | @Override |
aoqi@0 | 655 | public boolean isReference() { |
aoqi@0 | 656 | return true; |
aoqi@0 | 657 | } |
aoqi@0 | 658 | |
aoqi@0 | 659 | @Override |
aoqi@0 | 660 | public boolean isNullOrReference() { |
aoqi@0 | 661 | return true; |
aoqi@0 | 662 | } |
aoqi@0 | 663 | |
aoqi@0 | 664 | @Override |
aoqi@0 | 665 | public Type withTypeVar(Type t) { |
aoqi@0 | 666 | //-System.err.println(this+".withTypeVar("+t+");");//DEBUG |
aoqi@0 | 667 | if (bound == t) |
aoqi@0 | 668 | return this; |
aoqi@0 | 669 | bound = (TypeVar)t; |
aoqi@0 | 670 | return this; |
aoqi@0 | 671 | } |
aoqi@0 | 672 | |
aoqi@0 | 673 | boolean isPrintingBound = false; |
aoqi@0 | 674 | public String toString() { |
aoqi@0 | 675 | StringBuilder s = new StringBuilder(); |
aoqi@0 | 676 | s.append(kind.toString()); |
aoqi@0 | 677 | if (kind != UNBOUND) |
aoqi@0 | 678 | s.append(type); |
aoqi@0 | 679 | if (moreInfo && bound != null && !isPrintingBound) |
aoqi@0 | 680 | try { |
aoqi@0 | 681 | isPrintingBound = true; |
aoqi@0 | 682 | s.append("{:").append(bound.bound).append(":}"); |
aoqi@0 | 683 | } finally { |
aoqi@0 | 684 | isPrintingBound = false; |
aoqi@0 | 685 | } |
aoqi@0 | 686 | return s.toString(); |
aoqi@0 | 687 | } |
aoqi@0 | 688 | |
aoqi@0 | 689 | public Type map(Mapping f) { |
aoqi@0 | 690 | //- System.err.println(" (" + this + ").map(" + f + ")");//DEBUG |
aoqi@0 | 691 | Type t = type; |
aoqi@0 | 692 | if (t != null) |
aoqi@0 | 693 | t = f.apply(t); |
aoqi@0 | 694 | if (t == type) |
aoqi@0 | 695 | return this; |
aoqi@0 | 696 | else |
aoqi@0 | 697 | return new WildcardType(t, kind, tsym, bound); |
aoqi@0 | 698 | } |
aoqi@0 | 699 | |
aoqi@0 | 700 | public Type getExtendsBound() { |
aoqi@0 | 701 | if (kind == EXTENDS) |
aoqi@0 | 702 | return type; |
aoqi@0 | 703 | else |
aoqi@0 | 704 | return null; |
aoqi@0 | 705 | } |
aoqi@0 | 706 | |
aoqi@0 | 707 | public Type getSuperBound() { |
aoqi@0 | 708 | if (kind == SUPER) |
aoqi@0 | 709 | return type; |
aoqi@0 | 710 | else |
aoqi@0 | 711 | return null; |
aoqi@0 | 712 | } |
aoqi@0 | 713 | |
aoqi@0 | 714 | public TypeKind getKind() { |
aoqi@0 | 715 | return TypeKind.WILDCARD; |
aoqi@0 | 716 | } |
aoqi@0 | 717 | |
aoqi@0 | 718 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 719 | return v.visitWildcard(this, p); |
aoqi@0 | 720 | } |
aoqi@0 | 721 | } |
aoqi@0 | 722 | |
aoqi@0 | 723 | public static class ClassType extends Type implements DeclaredType { |
aoqi@0 | 724 | |
aoqi@0 | 725 | /** The enclosing type of this type. If this is the type of an inner |
aoqi@0 | 726 | * class, outer_field refers to the type of its enclosing |
aoqi@0 | 727 | * instance class, in all other cases it refers to noType. |
aoqi@0 | 728 | */ |
aoqi@0 | 729 | private Type outer_field; |
aoqi@0 | 730 | |
aoqi@0 | 731 | /** The type parameters of this type (to be set once class is loaded). |
aoqi@0 | 732 | */ |
aoqi@0 | 733 | public List<Type> typarams_field; |
aoqi@0 | 734 | |
aoqi@0 | 735 | /** A cache variable for the type parameters of this type, |
aoqi@0 | 736 | * appended to all parameters of its enclosing class. |
aoqi@0 | 737 | * @see #allparams |
aoqi@0 | 738 | */ |
aoqi@0 | 739 | public List<Type> allparams_field; |
aoqi@0 | 740 | |
aoqi@0 | 741 | /** The supertype of this class (to be set once class is loaded). |
aoqi@0 | 742 | */ |
aoqi@0 | 743 | public Type supertype_field; |
aoqi@0 | 744 | |
aoqi@0 | 745 | /** The interfaces of this class (to be set once class is loaded). |
aoqi@0 | 746 | */ |
aoqi@0 | 747 | public List<Type> interfaces_field; |
aoqi@0 | 748 | |
aoqi@0 | 749 | /** All the interfaces of this class, including missing ones. |
aoqi@0 | 750 | */ |
aoqi@0 | 751 | public List<Type> all_interfaces_field; |
aoqi@0 | 752 | |
aoqi@0 | 753 | public ClassType(Type outer, List<Type> typarams, TypeSymbol tsym) { |
aoqi@0 | 754 | super(tsym); |
aoqi@0 | 755 | this.outer_field = outer; |
aoqi@0 | 756 | this.typarams_field = typarams; |
aoqi@0 | 757 | this.allparams_field = null; |
aoqi@0 | 758 | this.supertype_field = null; |
aoqi@0 | 759 | this.interfaces_field = null; |
aoqi@0 | 760 | /* |
aoqi@0 | 761 | // this can happen during error recovery |
aoqi@0 | 762 | assert |
aoqi@0 | 763 | outer.isParameterized() ? |
aoqi@0 | 764 | typarams.length() == tsym.type.typarams().length() : |
aoqi@0 | 765 | outer.isRaw() ? |
aoqi@0 | 766 | typarams.length() == 0 : |
aoqi@0 | 767 | true; |
aoqi@0 | 768 | */ |
aoqi@0 | 769 | } |
aoqi@0 | 770 | |
aoqi@0 | 771 | @Override |
aoqi@0 | 772 | public TypeTag getTag() { |
aoqi@0 | 773 | return CLASS; |
aoqi@0 | 774 | } |
aoqi@0 | 775 | |
aoqi@0 | 776 | @Override |
aoqi@0 | 777 | public <R,S> R accept(Type.Visitor<R,S> v, S s) { |
aoqi@0 | 778 | return v.visitClassType(this, s); |
aoqi@0 | 779 | } |
aoqi@0 | 780 | |
aoqi@0 | 781 | public Type constType(Object constValue) { |
aoqi@0 | 782 | final Object value = constValue; |
aoqi@0 | 783 | return new ClassType(getEnclosingType(), typarams_field, tsym) { |
aoqi@0 | 784 | @Override |
aoqi@0 | 785 | public Object constValue() { |
aoqi@0 | 786 | return value; |
aoqi@0 | 787 | } |
aoqi@0 | 788 | @Override |
aoqi@0 | 789 | public Type baseType() { |
aoqi@0 | 790 | return tsym.type; |
aoqi@0 | 791 | } |
aoqi@0 | 792 | }; |
aoqi@0 | 793 | } |
aoqi@0 | 794 | |
aoqi@0 | 795 | /** The Java source which this type represents. |
aoqi@0 | 796 | */ |
aoqi@0 | 797 | public String toString() { |
aoqi@0 | 798 | StringBuilder buf = new StringBuilder(); |
aoqi@0 | 799 | if (getEnclosingType().hasTag(CLASS) && tsym.owner.kind == TYP) { |
aoqi@0 | 800 | buf.append(getEnclosingType().toString()); |
aoqi@0 | 801 | buf.append("."); |
aoqi@0 | 802 | buf.append(className(tsym, false)); |
aoqi@0 | 803 | } else { |
aoqi@0 | 804 | buf.append(className(tsym, true)); |
aoqi@0 | 805 | } |
aoqi@0 | 806 | if (getTypeArguments().nonEmpty()) { |
aoqi@0 | 807 | buf.append('<'); |
aoqi@0 | 808 | buf.append(getTypeArguments().toString()); |
aoqi@0 | 809 | buf.append(">"); |
aoqi@0 | 810 | } |
aoqi@0 | 811 | return buf.toString(); |
aoqi@0 | 812 | } |
aoqi@0 | 813 | //where |
aoqi@0 | 814 | private String className(Symbol sym, boolean longform) { |
aoqi@0 | 815 | if (sym.name.isEmpty() && (sym.flags() & COMPOUND) != 0) { |
aoqi@0 | 816 | StringBuilder s = new StringBuilder(supertype_field.toString()); |
aoqi@0 | 817 | for (List<Type> is=interfaces_field; is.nonEmpty(); is = is.tail) { |
aoqi@0 | 818 | s.append("&"); |
aoqi@0 | 819 | s.append(is.head.toString()); |
aoqi@0 | 820 | } |
aoqi@0 | 821 | return s.toString(); |
aoqi@0 | 822 | } else if (sym.name.isEmpty()) { |
aoqi@0 | 823 | String s; |
aoqi@0 | 824 | ClassType norm = (ClassType) tsym.type.unannotatedType(); |
aoqi@0 | 825 | if (norm == null) { |
aoqi@0 | 826 | s = Log.getLocalizedString("anonymous.class", (Object)null); |
aoqi@0 | 827 | } else if (norm.interfaces_field != null && norm.interfaces_field.nonEmpty()) { |
aoqi@0 | 828 | s = Log.getLocalizedString("anonymous.class", |
aoqi@0 | 829 | norm.interfaces_field.head); |
aoqi@0 | 830 | } else { |
aoqi@0 | 831 | s = Log.getLocalizedString("anonymous.class", |
aoqi@0 | 832 | norm.supertype_field); |
aoqi@0 | 833 | } |
aoqi@0 | 834 | if (moreInfo) |
aoqi@0 | 835 | s += String.valueOf(sym.hashCode()); |
aoqi@0 | 836 | return s; |
aoqi@0 | 837 | } else if (longform) { |
aoqi@0 | 838 | return sym.getQualifiedName().toString(); |
aoqi@0 | 839 | } else { |
aoqi@0 | 840 | return sym.name.toString(); |
aoqi@0 | 841 | } |
aoqi@0 | 842 | } |
aoqi@0 | 843 | |
aoqi@0 | 844 | public List<Type> getTypeArguments() { |
aoqi@0 | 845 | if (typarams_field == null) { |
aoqi@0 | 846 | complete(); |
aoqi@0 | 847 | if (typarams_field == null) |
aoqi@0 | 848 | typarams_field = List.nil(); |
aoqi@0 | 849 | } |
aoqi@0 | 850 | return typarams_field; |
aoqi@0 | 851 | } |
aoqi@0 | 852 | |
aoqi@0 | 853 | public boolean hasErasedSupertypes() { |
aoqi@0 | 854 | return isRaw(); |
aoqi@0 | 855 | } |
aoqi@0 | 856 | |
aoqi@0 | 857 | public Type getEnclosingType() { |
aoqi@0 | 858 | return outer_field; |
aoqi@0 | 859 | } |
aoqi@0 | 860 | |
aoqi@0 | 861 | public void setEnclosingType(Type outer) { |
aoqi@0 | 862 | outer_field = outer; |
aoqi@0 | 863 | } |
aoqi@0 | 864 | |
aoqi@0 | 865 | public List<Type> allparams() { |
aoqi@0 | 866 | if (allparams_field == null) { |
aoqi@0 | 867 | allparams_field = getTypeArguments().prependList(getEnclosingType().allparams()); |
aoqi@0 | 868 | } |
aoqi@0 | 869 | return allparams_field; |
aoqi@0 | 870 | } |
aoqi@0 | 871 | |
aoqi@0 | 872 | public boolean isErroneous() { |
aoqi@0 | 873 | return |
aoqi@0 | 874 | getEnclosingType().isErroneous() || |
aoqi@0 | 875 | isErroneous(getTypeArguments()) || |
aoqi@0 | 876 | this != tsym.type.unannotatedType() && tsym.type.isErroneous(); |
aoqi@0 | 877 | } |
aoqi@0 | 878 | |
aoqi@0 | 879 | public boolean isParameterized() { |
aoqi@0 | 880 | return allparams().tail != null; |
aoqi@0 | 881 | // optimization, was: allparams().nonEmpty(); |
aoqi@0 | 882 | } |
aoqi@0 | 883 | |
aoqi@0 | 884 | @Override |
aoqi@0 | 885 | public boolean isReference() { |
aoqi@0 | 886 | return true; |
aoqi@0 | 887 | } |
aoqi@0 | 888 | |
aoqi@0 | 889 | @Override |
aoqi@0 | 890 | public boolean isNullOrReference() { |
aoqi@0 | 891 | return true; |
aoqi@0 | 892 | } |
aoqi@0 | 893 | |
aoqi@0 | 894 | /** A cache for the rank. */ |
aoqi@0 | 895 | int rank_field = -1; |
aoqi@0 | 896 | |
aoqi@0 | 897 | /** A class type is raw if it misses some |
aoqi@0 | 898 | * of its type parameter sections. |
aoqi@0 | 899 | * After validation, this is equivalent to: |
aoqi@0 | 900 | * {@code allparams.isEmpty() && tsym.type.allparams.nonEmpty(); } |
aoqi@0 | 901 | */ |
aoqi@0 | 902 | public boolean isRaw() { |
aoqi@0 | 903 | return |
aoqi@0 | 904 | this != tsym.type && // necessary, but not sufficient condition |
aoqi@0 | 905 | tsym.type.allparams().nonEmpty() && |
aoqi@0 | 906 | allparams().isEmpty(); |
aoqi@0 | 907 | } |
aoqi@0 | 908 | |
aoqi@0 | 909 | public Type map(Mapping f) { |
aoqi@0 | 910 | Type outer = getEnclosingType(); |
aoqi@0 | 911 | Type outer1 = f.apply(outer); |
aoqi@0 | 912 | List<Type> typarams = getTypeArguments(); |
aoqi@0 | 913 | List<Type> typarams1 = map(typarams, f); |
aoqi@0 | 914 | if (outer1 == outer && typarams1 == typarams) return this; |
aoqi@0 | 915 | else return new ClassType(outer1, typarams1, tsym); |
aoqi@0 | 916 | } |
aoqi@0 | 917 | |
aoqi@0 | 918 | public boolean contains(Type elem) { |
aoqi@0 | 919 | return |
aoqi@0 | 920 | elem == this |
aoqi@0 | 921 | || (isParameterized() |
aoqi@0 | 922 | && (getEnclosingType().contains(elem) || contains(getTypeArguments(), elem))) |
aoqi@0 | 923 | || (isCompound() |
aoqi@0 | 924 | && (supertype_field.contains(elem) || contains(interfaces_field, elem))); |
aoqi@0 | 925 | } |
aoqi@0 | 926 | |
aoqi@0 | 927 | public void complete() { |
aoqi@0 | 928 | if (tsym.completer != null) tsym.complete(); |
aoqi@0 | 929 | } |
aoqi@0 | 930 | |
aoqi@0 | 931 | public TypeKind getKind() { |
aoqi@0 | 932 | return TypeKind.DECLARED; |
aoqi@0 | 933 | } |
aoqi@0 | 934 | |
aoqi@0 | 935 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 936 | return v.visitDeclared(this, p); |
aoqi@0 | 937 | } |
aoqi@0 | 938 | } |
aoqi@0 | 939 | |
aoqi@0 | 940 | public static class ErasedClassType extends ClassType { |
aoqi@0 | 941 | public ErasedClassType(Type outer, TypeSymbol tsym) { |
aoqi@0 | 942 | super(outer, List.<Type>nil(), tsym); |
aoqi@0 | 943 | } |
aoqi@0 | 944 | |
aoqi@0 | 945 | @Override |
aoqi@0 | 946 | public boolean hasErasedSupertypes() { |
aoqi@0 | 947 | return true; |
aoqi@0 | 948 | } |
aoqi@0 | 949 | } |
aoqi@0 | 950 | |
aoqi@0 | 951 | // a clone of a ClassType that knows about the alternatives of a union type. |
aoqi@0 | 952 | public static class UnionClassType extends ClassType implements UnionType { |
aoqi@0 | 953 | final List<? extends Type> alternatives_field; |
aoqi@0 | 954 | |
aoqi@0 | 955 | public UnionClassType(ClassType ct, List<? extends Type> alternatives) { |
aoqi@0 | 956 | super(ct.outer_field, ct.typarams_field, ct.tsym); |
aoqi@0 | 957 | allparams_field = ct.allparams_field; |
aoqi@0 | 958 | supertype_field = ct.supertype_field; |
aoqi@0 | 959 | interfaces_field = ct.interfaces_field; |
aoqi@0 | 960 | all_interfaces_field = ct.interfaces_field; |
aoqi@0 | 961 | alternatives_field = alternatives; |
aoqi@0 | 962 | } |
aoqi@0 | 963 | |
aoqi@0 | 964 | public Type getLub() { |
aoqi@0 | 965 | return tsym.type; |
aoqi@0 | 966 | } |
aoqi@0 | 967 | |
aoqi@0 | 968 | public java.util.List<? extends TypeMirror> getAlternatives() { |
aoqi@0 | 969 | return Collections.unmodifiableList(alternatives_field); |
aoqi@0 | 970 | } |
aoqi@0 | 971 | |
aoqi@0 | 972 | @Override |
aoqi@0 | 973 | public TypeKind getKind() { |
aoqi@0 | 974 | return TypeKind.UNION; |
aoqi@0 | 975 | } |
aoqi@0 | 976 | |
aoqi@0 | 977 | @Override |
aoqi@0 | 978 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 979 | return v.visitUnion(this, p); |
aoqi@0 | 980 | } |
aoqi@0 | 981 | } |
aoqi@0 | 982 | |
aoqi@0 | 983 | // a clone of a ClassType that knows about the bounds of an intersection type. |
aoqi@0 | 984 | public static class IntersectionClassType extends ClassType implements IntersectionType { |
aoqi@0 | 985 | |
aoqi@0 | 986 | public boolean allInterfaces; |
aoqi@0 | 987 | |
aoqi@0 | 988 | public IntersectionClassType(List<Type> bounds, ClassSymbol csym, boolean allInterfaces) { |
aoqi@0 | 989 | super(Type.noType, List.<Type>nil(), csym); |
aoqi@0 | 990 | this.allInterfaces = allInterfaces; |
aoqi@0 | 991 | Assert.check((csym.flags() & COMPOUND) != 0); |
aoqi@0 | 992 | supertype_field = bounds.head; |
aoqi@0 | 993 | interfaces_field = bounds.tail; |
aoqi@0 | 994 | Assert.check(supertype_field.tsym.completer != null || |
aoqi@0 | 995 | !supertype_field.isInterface(), supertype_field); |
aoqi@0 | 996 | } |
aoqi@0 | 997 | |
aoqi@0 | 998 | public java.util.List<? extends TypeMirror> getBounds() { |
aoqi@0 | 999 | return Collections.unmodifiableList(getExplicitComponents()); |
aoqi@0 | 1000 | } |
aoqi@0 | 1001 | |
aoqi@0 | 1002 | public List<Type> getComponents() { |
aoqi@0 | 1003 | return interfaces_field.prepend(supertype_field); |
aoqi@0 | 1004 | } |
aoqi@0 | 1005 | |
aoqi@0 | 1006 | public List<Type> getExplicitComponents() { |
aoqi@0 | 1007 | return allInterfaces ? |
aoqi@0 | 1008 | interfaces_field : |
aoqi@0 | 1009 | getComponents(); |
aoqi@0 | 1010 | } |
aoqi@0 | 1011 | |
aoqi@0 | 1012 | @Override |
aoqi@0 | 1013 | public TypeKind getKind() { |
aoqi@0 | 1014 | return TypeKind.INTERSECTION; |
aoqi@0 | 1015 | } |
aoqi@0 | 1016 | |
aoqi@0 | 1017 | @Override |
aoqi@0 | 1018 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 1019 | return v.visitIntersection(this, p); |
aoqi@0 | 1020 | } |
aoqi@0 | 1021 | } |
aoqi@0 | 1022 | |
aoqi@0 | 1023 | public static class ArrayType extends Type |
aoqi@0 | 1024 | implements javax.lang.model.type.ArrayType { |
aoqi@0 | 1025 | |
aoqi@0 | 1026 | public Type elemtype; |
aoqi@0 | 1027 | |
aoqi@0 | 1028 | public ArrayType(Type elemtype, TypeSymbol arrayClass) { |
aoqi@0 | 1029 | super(arrayClass); |
aoqi@0 | 1030 | this.elemtype = elemtype; |
aoqi@0 | 1031 | } |
aoqi@0 | 1032 | |
aoqi@0 | 1033 | @Override |
aoqi@0 | 1034 | public TypeTag getTag() { |
aoqi@0 | 1035 | return ARRAY; |
aoqi@0 | 1036 | } |
aoqi@0 | 1037 | |
aoqi@0 | 1038 | public <R,S> R accept(Type.Visitor<R,S> v, S s) { |
aoqi@0 | 1039 | return v.visitArrayType(this, s); |
aoqi@0 | 1040 | } |
aoqi@0 | 1041 | |
aoqi@0 | 1042 | public String toString() { |
aoqi@0 | 1043 | return elemtype + "[]"; |
aoqi@0 | 1044 | } |
aoqi@0 | 1045 | |
aoqi@0 | 1046 | public boolean equals(Object obj) { |
aoqi@0 | 1047 | return |
aoqi@0 | 1048 | this == obj || |
aoqi@0 | 1049 | (obj instanceof ArrayType && |
aoqi@0 | 1050 | this.elemtype.equals(((ArrayType)obj).elemtype)); |
aoqi@0 | 1051 | } |
aoqi@0 | 1052 | |
aoqi@0 | 1053 | public int hashCode() { |
aoqi@0 | 1054 | return (ARRAY.ordinal() << 5) + elemtype.hashCode(); |
aoqi@0 | 1055 | } |
aoqi@0 | 1056 | |
aoqi@0 | 1057 | public boolean isVarargs() { |
aoqi@0 | 1058 | return false; |
aoqi@0 | 1059 | } |
aoqi@0 | 1060 | |
aoqi@0 | 1061 | public List<Type> allparams() { return elemtype.allparams(); } |
aoqi@0 | 1062 | |
aoqi@0 | 1063 | public boolean isErroneous() { |
aoqi@0 | 1064 | return elemtype.isErroneous(); |
aoqi@0 | 1065 | } |
aoqi@0 | 1066 | |
aoqi@0 | 1067 | public boolean isParameterized() { |
aoqi@0 | 1068 | return elemtype.isParameterized(); |
aoqi@0 | 1069 | } |
aoqi@0 | 1070 | |
aoqi@0 | 1071 | @Override |
aoqi@0 | 1072 | public boolean isReference() { |
aoqi@0 | 1073 | return true; |
aoqi@0 | 1074 | } |
aoqi@0 | 1075 | |
aoqi@0 | 1076 | @Override |
aoqi@0 | 1077 | public boolean isNullOrReference() { |
aoqi@0 | 1078 | return true; |
aoqi@0 | 1079 | } |
aoqi@0 | 1080 | |
aoqi@0 | 1081 | public boolean isRaw() { |
aoqi@0 | 1082 | return elemtype.isRaw(); |
aoqi@0 | 1083 | } |
aoqi@0 | 1084 | |
aoqi@0 | 1085 | public ArrayType makeVarargs() { |
aoqi@0 | 1086 | return new ArrayType(elemtype, tsym) { |
aoqi@0 | 1087 | @Override |
aoqi@0 | 1088 | public boolean isVarargs() { |
aoqi@0 | 1089 | return true; |
aoqi@0 | 1090 | } |
aoqi@0 | 1091 | }; |
aoqi@0 | 1092 | } |
aoqi@0 | 1093 | |
aoqi@0 | 1094 | public Type map(Mapping f) { |
aoqi@0 | 1095 | Type elemtype1 = f.apply(elemtype); |
aoqi@0 | 1096 | if (elemtype1 == elemtype) return this; |
aoqi@0 | 1097 | else return new ArrayType(elemtype1, tsym); |
aoqi@0 | 1098 | } |
aoqi@0 | 1099 | |
aoqi@0 | 1100 | public boolean contains(Type elem) { |
aoqi@0 | 1101 | return elem == this || elemtype.contains(elem); |
aoqi@0 | 1102 | } |
aoqi@0 | 1103 | |
aoqi@0 | 1104 | public void complete() { |
aoqi@0 | 1105 | elemtype.complete(); |
aoqi@0 | 1106 | } |
aoqi@0 | 1107 | |
aoqi@0 | 1108 | public Type getComponentType() { |
aoqi@0 | 1109 | return elemtype; |
aoqi@0 | 1110 | } |
aoqi@0 | 1111 | |
aoqi@0 | 1112 | public TypeKind getKind() { |
aoqi@0 | 1113 | return TypeKind.ARRAY; |
aoqi@0 | 1114 | } |
aoqi@0 | 1115 | |
aoqi@0 | 1116 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 1117 | return v.visitArray(this, p); |
aoqi@0 | 1118 | } |
aoqi@0 | 1119 | } |
aoqi@0 | 1120 | |
aoqi@0 | 1121 | public static class MethodType extends Type implements ExecutableType { |
aoqi@0 | 1122 | |
aoqi@0 | 1123 | public List<Type> argtypes; |
aoqi@0 | 1124 | public Type restype; |
aoqi@0 | 1125 | public List<Type> thrown; |
aoqi@0 | 1126 | |
aoqi@0 | 1127 | /** The type annotations on the method receiver. |
aoqi@0 | 1128 | */ |
aoqi@0 | 1129 | public Type recvtype; |
aoqi@0 | 1130 | |
aoqi@0 | 1131 | public MethodType(List<Type> argtypes, |
aoqi@0 | 1132 | Type restype, |
aoqi@0 | 1133 | List<Type> thrown, |
aoqi@0 | 1134 | TypeSymbol methodClass) { |
aoqi@0 | 1135 | super(methodClass); |
aoqi@0 | 1136 | this.argtypes = argtypes; |
aoqi@0 | 1137 | this.restype = restype; |
aoqi@0 | 1138 | this.thrown = thrown; |
aoqi@0 | 1139 | } |
aoqi@0 | 1140 | |
aoqi@0 | 1141 | @Override |
aoqi@0 | 1142 | public TypeTag getTag() { |
aoqi@0 | 1143 | return METHOD; |
aoqi@0 | 1144 | } |
aoqi@0 | 1145 | |
aoqi@0 | 1146 | public <R,S> R accept(Type.Visitor<R,S> v, S s) { |
aoqi@0 | 1147 | return v.visitMethodType(this, s); |
aoqi@0 | 1148 | } |
aoqi@0 | 1149 | |
aoqi@0 | 1150 | /** The Java source which this type represents. |
aoqi@0 | 1151 | * |
aoqi@0 | 1152 | * XXX 06/09/99 iris This isn't correct Java syntax, but it probably |
aoqi@0 | 1153 | * should be. |
aoqi@0 | 1154 | */ |
aoqi@0 | 1155 | public String toString() { |
aoqi@0 | 1156 | return "(" + argtypes + ")" + restype; |
aoqi@0 | 1157 | } |
aoqi@0 | 1158 | |
aoqi@0 | 1159 | public List<Type> getParameterTypes() { return argtypes; } |
aoqi@0 | 1160 | public Type getReturnType() { return restype; } |
aoqi@0 | 1161 | public Type getReceiverType() { return recvtype; } |
aoqi@0 | 1162 | public List<Type> getThrownTypes() { return thrown; } |
aoqi@0 | 1163 | |
aoqi@0 | 1164 | public boolean isErroneous() { |
aoqi@0 | 1165 | return |
aoqi@0 | 1166 | isErroneous(argtypes) || |
aoqi@0 | 1167 | restype != null && restype.isErroneous(); |
aoqi@0 | 1168 | } |
aoqi@0 | 1169 | |
aoqi@0 | 1170 | public Type map(Mapping f) { |
aoqi@0 | 1171 | List<Type> argtypes1 = map(argtypes, f); |
aoqi@0 | 1172 | Type restype1 = f.apply(restype); |
aoqi@0 | 1173 | List<Type> thrown1 = map(thrown, f); |
aoqi@0 | 1174 | if (argtypes1 == argtypes && |
aoqi@0 | 1175 | restype1 == restype && |
aoqi@0 | 1176 | thrown1 == thrown) return this; |
aoqi@0 | 1177 | else return new MethodType(argtypes1, restype1, thrown1, tsym); |
aoqi@0 | 1178 | } |
aoqi@0 | 1179 | |
aoqi@0 | 1180 | public boolean contains(Type elem) { |
aoqi@0 | 1181 | return elem == this || contains(argtypes, elem) || restype.contains(elem) || contains(thrown, elem); |
aoqi@0 | 1182 | } |
aoqi@0 | 1183 | |
aoqi@0 | 1184 | public MethodType asMethodType() { return this; } |
aoqi@0 | 1185 | |
aoqi@0 | 1186 | public void complete() { |
aoqi@0 | 1187 | for (List<Type> l = argtypes; l.nonEmpty(); l = l.tail) |
aoqi@0 | 1188 | l.head.complete(); |
aoqi@0 | 1189 | restype.complete(); |
aoqi@0 | 1190 | recvtype.complete(); |
aoqi@0 | 1191 | for (List<Type> l = thrown; l.nonEmpty(); l = l.tail) |
aoqi@0 | 1192 | l.head.complete(); |
aoqi@0 | 1193 | } |
aoqi@0 | 1194 | |
aoqi@0 | 1195 | public List<TypeVar> getTypeVariables() { |
aoqi@0 | 1196 | return List.nil(); |
aoqi@0 | 1197 | } |
aoqi@0 | 1198 | |
aoqi@0 | 1199 | public TypeSymbol asElement() { |
aoqi@0 | 1200 | return null; |
aoqi@0 | 1201 | } |
aoqi@0 | 1202 | |
aoqi@0 | 1203 | public TypeKind getKind() { |
aoqi@0 | 1204 | return TypeKind.EXECUTABLE; |
aoqi@0 | 1205 | } |
aoqi@0 | 1206 | |
aoqi@0 | 1207 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 1208 | return v.visitExecutable(this, p); |
aoqi@0 | 1209 | } |
aoqi@0 | 1210 | } |
aoqi@0 | 1211 | |
aoqi@0 | 1212 | public static class PackageType extends Type implements NoType { |
aoqi@0 | 1213 | |
aoqi@0 | 1214 | PackageType(TypeSymbol tsym) { |
aoqi@0 | 1215 | super(tsym); |
aoqi@0 | 1216 | } |
aoqi@0 | 1217 | |
aoqi@0 | 1218 | @Override |
aoqi@0 | 1219 | public TypeTag getTag() { |
aoqi@0 | 1220 | return PACKAGE; |
aoqi@0 | 1221 | } |
aoqi@0 | 1222 | |
aoqi@0 | 1223 | @Override |
aoqi@0 | 1224 | public <R,S> R accept(Type.Visitor<R,S> v, S s) { |
aoqi@0 | 1225 | return v.visitPackageType(this, s); |
aoqi@0 | 1226 | } |
aoqi@0 | 1227 | |
aoqi@0 | 1228 | public String toString() { |
aoqi@0 | 1229 | return tsym.getQualifiedName().toString(); |
aoqi@0 | 1230 | } |
aoqi@0 | 1231 | |
aoqi@0 | 1232 | public TypeKind getKind() { |
aoqi@0 | 1233 | return TypeKind.PACKAGE; |
aoqi@0 | 1234 | } |
aoqi@0 | 1235 | |
aoqi@0 | 1236 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 1237 | return v.visitNoType(this, p); |
aoqi@0 | 1238 | } |
aoqi@0 | 1239 | } |
aoqi@0 | 1240 | |
aoqi@0 | 1241 | public static class TypeVar extends Type implements TypeVariable { |
aoqi@0 | 1242 | |
aoqi@0 | 1243 | /** The upper bound of this type variable; set from outside. |
aoqi@0 | 1244 | * Must be nonempty once it is set. |
aoqi@0 | 1245 | * For a bound, `bound' is the bound type itself. |
aoqi@0 | 1246 | * Multiple bounds are expressed as a single class type which has the |
aoqi@0 | 1247 | * individual bounds as superclass, respectively interfaces. |
aoqi@0 | 1248 | * The class type then has as `tsym' a compiler generated class `c', |
aoqi@0 | 1249 | * which has a flag COMPOUND and whose owner is the type variable |
aoqi@0 | 1250 | * itself. Furthermore, the erasure_field of the class |
aoqi@0 | 1251 | * points to the first class or interface bound. |
aoqi@0 | 1252 | */ |
aoqi@0 | 1253 | public Type bound = null; |
aoqi@0 | 1254 | |
aoqi@0 | 1255 | /** The lower bound of this type variable. |
aoqi@0 | 1256 | * TypeVars don't normally have a lower bound, so it is normally set |
aoqi@0 | 1257 | * to syms.botType. |
aoqi@0 | 1258 | * Subtypes, such as CapturedType, may provide a different value. |
aoqi@0 | 1259 | */ |
aoqi@0 | 1260 | public Type lower; |
aoqi@0 | 1261 | |
aoqi@0 | 1262 | public TypeVar(Name name, Symbol owner, Type lower) { |
aoqi@0 | 1263 | super(null); |
aoqi@0 | 1264 | tsym = new TypeVariableSymbol(0, name, this, owner); |
aoqi@0 | 1265 | this.lower = lower; |
aoqi@0 | 1266 | } |
aoqi@0 | 1267 | |
aoqi@0 | 1268 | public TypeVar(TypeSymbol tsym, Type bound, Type lower) { |
aoqi@0 | 1269 | super(tsym); |
aoqi@0 | 1270 | this.bound = bound; |
aoqi@0 | 1271 | this.lower = lower; |
aoqi@0 | 1272 | } |
aoqi@0 | 1273 | |
aoqi@0 | 1274 | @Override |
aoqi@0 | 1275 | public TypeTag getTag() { |
aoqi@0 | 1276 | return TYPEVAR; |
aoqi@0 | 1277 | } |
aoqi@0 | 1278 | |
aoqi@0 | 1279 | @Override |
aoqi@0 | 1280 | public <R,S> R accept(Type.Visitor<R,S> v, S s) { |
aoqi@0 | 1281 | return v.visitTypeVar(this, s); |
aoqi@0 | 1282 | } |
aoqi@0 | 1283 | |
aoqi@0 | 1284 | @Override |
aoqi@0 | 1285 | public Type getUpperBound() { |
aoqi@0 | 1286 | if ((bound == null || bound.hasTag(NONE)) && this != tsym.type) { |
aoqi@0 | 1287 | bound = tsym.type.getUpperBound(); |
aoqi@0 | 1288 | } |
aoqi@0 | 1289 | return bound; |
aoqi@0 | 1290 | } |
aoqi@0 | 1291 | |
aoqi@0 | 1292 | int rank_field = -1; |
aoqi@0 | 1293 | |
aoqi@0 | 1294 | @Override |
aoqi@0 | 1295 | public Type getLowerBound() { |
aoqi@0 | 1296 | return lower; |
aoqi@0 | 1297 | } |
aoqi@0 | 1298 | |
aoqi@0 | 1299 | public TypeKind getKind() { |
aoqi@0 | 1300 | return TypeKind.TYPEVAR; |
aoqi@0 | 1301 | } |
aoqi@0 | 1302 | |
aoqi@0 | 1303 | public boolean isCaptured() { |
aoqi@0 | 1304 | return false; |
aoqi@0 | 1305 | } |
aoqi@0 | 1306 | |
aoqi@0 | 1307 | @Override |
aoqi@0 | 1308 | public boolean isReference() { |
aoqi@0 | 1309 | return true; |
aoqi@0 | 1310 | } |
aoqi@0 | 1311 | |
aoqi@0 | 1312 | @Override |
aoqi@0 | 1313 | public boolean isNullOrReference() { |
aoqi@0 | 1314 | return true; |
aoqi@0 | 1315 | } |
aoqi@0 | 1316 | |
aoqi@0 | 1317 | @Override |
aoqi@0 | 1318 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 1319 | return v.visitTypeVariable(this, p); |
aoqi@0 | 1320 | } |
aoqi@0 | 1321 | } |
aoqi@0 | 1322 | |
aoqi@0 | 1323 | /** A captured type variable comes from wildcards which can have |
aoqi@0 | 1324 | * both upper and lower bound. CapturedType extends TypeVar with |
aoqi@0 | 1325 | * a lower bound. |
aoqi@0 | 1326 | */ |
aoqi@0 | 1327 | public static class CapturedType extends TypeVar { |
aoqi@0 | 1328 | |
aoqi@0 | 1329 | public WildcardType wildcard; |
aoqi@0 | 1330 | |
aoqi@0 | 1331 | public CapturedType(Name name, |
aoqi@0 | 1332 | Symbol owner, |
aoqi@0 | 1333 | Type upper, |
aoqi@0 | 1334 | Type lower, |
aoqi@0 | 1335 | WildcardType wildcard) { |
aoqi@0 | 1336 | super(name, owner, lower); |
aoqi@0 | 1337 | this.lower = Assert.checkNonNull(lower); |
aoqi@0 | 1338 | this.bound = upper; |
aoqi@0 | 1339 | this.wildcard = wildcard; |
aoqi@0 | 1340 | } |
aoqi@0 | 1341 | |
aoqi@0 | 1342 | @Override |
aoqi@0 | 1343 | public <R,S> R accept(Type.Visitor<R,S> v, S s) { |
aoqi@0 | 1344 | return v.visitCapturedType(this, s); |
aoqi@0 | 1345 | } |
aoqi@0 | 1346 | |
aoqi@0 | 1347 | @Override |
aoqi@0 | 1348 | public boolean isCaptured() { |
aoqi@0 | 1349 | return true; |
aoqi@0 | 1350 | } |
aoqi@0 | 1351 | |
aoqi@0 | 1352 | @Override |
aoqi@0 | 1353 | public String toString() { |
aoqi@0 | 1354 | return "capture#" |
aoqi@0 | 1355 | + (hashCode() & 0xFFFFFFFFL) % Printer.PRIME |
aoqi@0 | 1356 | + " of " |
aoqi@0 | 1357 | + wildcard; |
aoqi@0 | 1358 | } |
aoqi@0 | 1359 | } |
aoqi@0 | 1360 | |
aoqi@0 | 1361 | public static abstract class DelegatedType extends Type { |
aoqi@0 | 1362 | public Type qtype; |
aoqi@0 | 1363 | public TypeTag tag; |
aoqi@0 | 1364 | public DelegatedType(TypeTag tag, Type qtype) { |
aoqi@0 | 1365 | super(qtype.tsym); |
aoqi@0 | 1366 | this.tag = tag; |
aoqi@0 | 1367 | this.qtype = qtype; |
aoqi@0 | 1368 | } |
aoqi@0 | 1369 | public TypeTag getTag() { return tag; } |
aoqi@0 | 1370 | public String toString() { return qtype.toString(); } |
aoqi@0 | 1371 | public List<Type> getTypeArguments() { return qtype.getTypeArguments(); } |
aoqi@0 | 1372 | public Type getEnclosingType() { return qtype.getEnclosingType(); } |
aoqi@0 | 1373 | public List<Type> getParameterTypes() { return qtype.getParameterTypes(); } |
aoqi@0 | 1374 | public Type getReturnType() { return qtype.getReturnType(); } |
aoqi@0 | 1375 | public Type getReceiverType() { return qtype.getReceiverType(); } |
aoqi@0 | 1376 | public List<Type> getThrownTypes() { return qtype.getThrownTypes(); } |
aoqi@0 | 1377 | public List<Type> allparams() { return qtype.allparams(); } |
aoqi@0 | 1378 | public Type getUpperBound() { return qtype.getUpperBound(); } |
aoqi@0 | 1379 | public boolean isErroneous() { return qtype.isErroneous(); } |
aoqi@0 | 1380 | } |
aoqi@0 | 1381 | |
aoqi@0 | 1382 | /** |
aoqi@0 | 1383 | * The type of a generic method type. It consists of a method type and |
aoqi@0 | 1384 | * a list of method type-parameters that are used within the method |
aoqi@0 | 1385 | * type. |
aoqi@0 | 1386 | */ |
aoqi@0 | 1387 | public static class ForAll extends DelegatedType implements ExecutableType { |
aoqi@0 | 1388 | public List<Type> tvars; |
aoqi@0 | 1389 | |
aoqi@0 | 1390 | public ForAll(List<Type> tvars, Type qtype) { |
aoqi@0 | 1391 | super(FORALL, (MethodType)qtype); |
aoqi@0 | 1392 | this.tvars = tvars; |
aoqi@0 | 1393 | } |
aoqi@0 | 1394 | |
aoqi@0 | 1395 | @Override |
aoqi@0 | 1396 | public <R,S> R accept(Type.Visitor<R,S> v, S s) { |
aoqi@0 | 1397 | return v.visitForAll(this, s); |
aoqi@0 | 1398 | } |
aoqi@0 | 1399 | |
aoqi@0 | 1400 | public String toString() { |
aoqi@0 | 1401 | return "<" + tvars + ">" + qtype; |
aoqi@0 | 1402 | } |
aoqi@0 | 1403 | |
aoqi@0 | 1404 | public List<Type> getTypeArguments() { return tvars; } |
aoqi@0 | 1405 | |
aoqi@0 | 1406 | public boolean isErroneous() { |
aoqi@0 | 1407 | return qtype.isErroneous(); |
aoqi@0 | 1408 | } |
aoqi@0 | 1409 | |
aoqi@0 | 1410 | public Type map(Mapping f) { |
aoqi@0 | 1411 | return f.apply(qtype); |
aoqi@0 | 1412 | } |
aoqi@0 | 1413 | |
aoqi@0 | 1414 | public boolean contains(Type elem) { |
aoqi@0 | 1415 | return qtype.contains(elem); |
aoqi@0 | 1416 | } |
aoqi@0 | 1417 | |
aoqi@0 | 1418 | public MethodType asMethodType() { |
aoqi@0 | 1419 | return (MethodType)qtype; |
aoqi@0 | 1420 | } |
aoqi@0 | 1421 | |
aoqi@0 | 1422 | public void complete() { |
aoqi@0 | 1423 | for (List<Type> l = tvars; l.nonEmpty(); l = l.tail) { |
aoqi@0 | 1424 | ((TypeVar)l.head).bound.complete(); |
aoqi@0 | 1425 | } |
aoqi@0 | 1426 | qtype.complete(); |
aoqi@0 | 1427 | } |
aoqi@0 | 1428 | |
aoqi@0 | 1429 | public List<TypeVar> getTypeVariables() { |
aoqi@0 | 1430 | return List.convert(TypeVar.class, getTypeArguments()); |
aoqi@0 | 1431 | } |
aoqi@0 | 1432 | |
aoqi@0 | 1433 | public TypeKind getKind() { |
aoqi@0 | 1434 | return TypeKind.EXECUTABLE; |
aoqi@0 | 1435 | } |
aoqi@0 | 1436 | |
aoqi@0 | 1437 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 1438 | return v.visitExecutable(this, p); |
aoqi@0 | 1439 | } |
aoqi@0 | 1440 | } |
aoqi@0 | 1441 | |
aoqi@0 | 1442 | /** A class for inference variables, for use during method/diamond type |
aoqi@0 | 1443 | * inference. An inference variable has upper/lower bounds and a set |
aoqi@0 | 1444 | * of equality constraints. Such bounds are set during subtyping, type-containment, |
aoqi@0 | 1445 | * type-equality checks, when the types being tested contain inference variables. |
aoqi@0 | 1446 | * A change listener can be attached to an inference variable, to receive notifications |
aoqi@0 | 1447 | * whenever the bounds of an inference variable change. |
aoqi@0 | 1448 | */ |
aoqi@0 | 1449 | public static class UndetVar extends DelegatedType { |
aoqi@0 | 1450 | |
aoqi@0 | 1451 | /** Inference variable change listener. The listener method is called |
aoqi@0 | 1452 | * whenever a change to the inference variable's bounds occurs |
aoqi@0 | 1453 | */ |
aoqi@0 | 1454 | public interface UndetVarListener { |
aoqi@0 | 1455 | /** called when some inference variable bounds (of given kinds ibs) change */ |
aoqi@0 | 1456 | void varChanged(UndetVar uv, Set<InferenceBound> ibs); |
aoqi@0 | 1457 | } |
aoqi@0 | 1458 | |
aoqi@0 | 1459 | /** |
aoqi@0 | 1460 | * Inference variable bound kinds |
aoqi@0 | 1461 | */ |
aoqi@0 | 1462 | public enum InferenceBound { |
aoqi@0 | 1463 | UPPER { |
aoqi@0 | 1464 | public InferenceBound complement() { return LOWER; } |
aoqi@0 | 1465 | }, |
aoqi@0 | 1466 | /** lower bounds */ |
aoqi@0 | 1467 | LOWER { |
aoqi@0 | 1468 | public InferenceBound complement() { return UPPER; } |
aoqi@0 | 1469 | }, |
aoqi@0 | 1470 | /** equality constraints */ |
aoqi@0 | 1471 | EQ { |
aoqi@0 | 1472 | public InferenceBound complement() { return EQ; } |
aoqi@0 | 1473 | }; |
aoqi@0 | 1474 | |
aoqi@0 | 1475 | public abstract InferenceBound complement(); |
aoqi@0 | 1476 | } |
aoqi@0 | 1477 | |
aoqi@0 | 1478 | /** inference variable bounds */ |
aoqi@0 | 1479 | protected Map<InferenceBound, List<Type>> bounds; |
aoqi@0 | 1480 | |
aoqi@0 | 1481 | /** inference variable's inferred type (set from Infer.java) */ |
aoqi@0 | 1482 | public Type inst = null; |
aoqi@0 | 1483 | |
aoqi@0 | 1484 | /** number of declared (upper) bounds */ |
aoqi@0 | 1485 | public int declaredCount; |
aoqi@0 | 1486 | |
aoqi@0 | 1487 | /** inference variable's change listener */ |
aoqi@0 | 1488 | public UndetVarListener listener = null; |
aoqi@0 | 1489 | |
aoqi@0 | 1490 | @Override |
aoqi@0 | 1491 | public <R,S> R accept(Type.Visitor<R,S> v, S s) { |
aoqi@0 | 1492 | return v.visitUndetVar(this, s); |
aoqi@0 | 1493 | } |
aoqi@0 | 1494 | |
aoqi@0 | 1495 | public UndetVar(TypeVar origin, Types types) { |
aoqi@0 | 1496 | super(UNDETVAR, origin); |
aoqi@0 | 1497 | bounds = new EnumMap<InferenceBound, List<Type>>(InferenceBound.class); |
aoqi@0 | 1498 | List<Type> declaredBounds = types.getBounds(origin); |
aoqi@0 | 1499 | declaredCount = declaredBounds.length(); |
aoqi@0 | 1500 | bounds.put(InferenceBound.UPPER, declaredBounds); |
aoqi@0 | 1501 | bounds.put(InferenceBound.LOWER, List.<Type>nil()); |
aoqi@0 | 1502 | bounds.put(InferenceBound.EQ, List.<Type>nil()); |
aoqi@0 | 1503 | } |
aoqi@0 | 1504 | |
aoqi@0 | 1505 | public String toString() { |
aoqi@0 | 1506 | return (inst == null) ? qtype + "?" : inst.toString(); |
aoqi@0 | 1507 | } |
aoqi@0 | 1508 | |
aoqi@0 | 1509 | public String debugString() { |
aoqi@0 | 1510 | String result = "inference var = " + qtype + "\n"; |
aoqi@0 | 1511 | if (inst != null) { |
aoqi@0 | 1512 | result += "inst = " + inst + '\n'; |
aoqi@0 | 1513 | } |
aoqi@0 | 1514 | for (InferenceBound bound: InferenceBound.values()) { |
aoqi@0 | 1515 | List<Type> aboundList = bounds.get(bound); |
aoqi@0 | 1516 | if (aboundList.size() > 0) { |
aoqi@0 | 1517 | result += bound + " = " + aboundList + '\n'; |
aoqi@0 | 1518 | } |
aoqi@0 | 1519 | } |
aoqi@0 | 1520 | return result; |
aoqi@0 | 1521 | } |
aoqi@0 | 1522 | |
aoqi@0 | 1523 | @Override |
aoqi@0 | 1524 | public boolean isPartial() { |
aoqi@0 | 1525 | return true; |
aoqi@0 | 1526 | } |
aoqi@0 | 1527 | |
aoqi@0 | 1528 | @Override |
aoqi@0 | 1529 | public Type baseType() { |
aoqi@0 | 1530 | return (inst == null) ? this : inst.baseType(); |
aoqi@0 | 1531 | } |
aoqi@0 | 1532 | |
aoqi@0 | 1533 | /** get all bounds of a given kind */ |
aoqi@0 | 1534 | public List<Type> getBounds(InferenceBound... ibs) { |
aoqi@0 | 1535 | ListBuffer<Type> buf = new ListBuffer<>(); |
aoqi@0 | 1536 | for (InferenceBound ib : ibs) { |
aoqi@0 | 1537 | buf.appendList(bounds.get(ib)); |
aoqi@0 | 1538 | } |
aoqi@0 | 1539 | return buf.toList(); |
aoqi@0 | 1540 | } |
aoqi@0 | 1541 | |
aoqi@0 | 1542 | /** get the list of declared (upper) bounds */ |
aoqi@0 | 1543 | public List<Type> getDeclaredBounds() { |
aoqi@0 | 1544 | ListBuffer<Type> buf = new ListBuffer<>(); |
aoqi@0 | 1545 | int count = 0; |
aoqi@0 | 1546 | for (Type b : getBounds(InferenceBound.UPPER)) { |
aoqi@0 | 1547 | if (count++ == declaredCount) break; |
aoqi@0 | 1548 | buf.append(b); |
aoqi@0 | 1549 | } |
aoqi@0 | 1550 | return buf.toList(); |
aoqi@0 | 1551 | } |
aoqi@0 | 1552 | |
aoqi@0 | 1553 | /** internal method used to override an undetvar bounds */ |
aoqi@0 | 1554 | public void setBounds(InferenceBound ib, List<Type> newBounds) { |
aoqi@0 | 1555 | bounds.put(ib, newBounds); |
aoqi@0 | 1556 | } |
aoqi@0 | 1557 | |
aoqi@0 | 1558 | /** add a bound of a given kind - this might trigger listener notification */ |
aoqi@0 | 1559 | public final void addBound(InferenceBound ib, Type bound, Types types) { |
aoqi@0 | 1560 | addBound(ib, bound, types, false); |
aoqi@0 | 1561 | } |
aoqi@0 | 1562 | |
aoqi@0 | 1563 | protected void addBound(InferenceBound ib, Type bound, Types types, boolean update) { |
aoqi@0 | 1564 | Type bound2 = toTypeVarMap.apply(bound).baseType(); |
aoqi@0 | 1565 | List<Type> prevBounds = bounds.get(ib); |
aoqi@0 | 1566 | for (Type b : prevBounds) { |
aoqi@0 | 1567 | //check for redundancy - use strict version of isSameType on tvars |
aoqi@0 | 1568 | //(as the standard version will lead to false positives w.r.t. clones ivars) |
aoqi@0 | 1569 | if (types.isSameType(b, bound2, true) || bound == qtype) return; |
aoqi@0 | 1570 | } |
aoqi@0 | 1571 | bounds.put(ib, prevBounds.prepend(bound2)); |
aoqi@0 | 1572 | notifyChange(EnumSet.of(ib)); |
aoqi@0 | 1573 | } |
aoqi@0 | 1574 | //where |
aoqi@0 | 1575 | Type.Mapping toTypeVarMap = new Mapping("toTypeVarMap") { |
aoqi@0 | 1576 | @Override |
aoqi@0 | 1577 | public Type apply(Type t) { |
aoqi@0 | 1578 | if (t.hasTag(UNDETVAR)) { |
aoqi@0 | 1579 | UndetVar uv = (UndetVar)t; |
aoqi@0 | 1580 | return uv.inst != null ? uv.inst : uv.qtype; |
aoqi@0 | 1581 | } else { |
aoqi@0 | 1582 | return t.map(this); |
aoqi@0 | 1583 | } |
aoqi@0 | 1584 | } |
aoqi@0 | 1585 | }; |
aoqi@0 | 1586 | |
aoqi@0 | 1587 | /** replace types in all bounds - this might trigger listener notification */ |
aoqi@0 | 1588 | public void substBounds(List<Type> from, List<Type> to, Types types) { |
aoqi@0 | 1589 | List<Type> instVars = from.diff(to); |
aoqi@0 | 1590 | //if set of instantiated ivars is empty, there's nothing to do! |
aoqi@0 | 1591 | if (instVars.isEmpty()) return; |
aoqi@0 | 1592 | final EnumSet<InferenceBound> boundsChanged = EnumSet.noneOf(InferenceBound.class); |
aoqi@0 | 1593 | UndetVarListener prevListener = listener; |
aoqi@0 | 1594 | try { |
aoqi@0 | 1595 | //setup new listener for keeping track of changed bounds |
aoqi@0 | 1596 | listener = new UndetVarListener() { |
aoqi@0 | 1597 | public void varChanged(UndetVar uv, Set<InferenceBound> ibs) { |
aoqi@0 | 1598 | boundsChanged.addAll(ibs); |
aoqi@0 | 1599 | } |
aoqi@0 | 1600 | }; |
aoqi@0 | 1601 | for (Map.Entry<InferenceBound, List<Type>> _entry : bounds.entrySet()) { |
aoqi@0 | 1602 | InferenceBound ib = _entry.getKey(); |
aoqi@0 | 1603 | List<Type> prevBounds = _entry.getValue(); |
aoqi@0 | 1604 | ListBuffer<Type> newBounds = new ListBuffer<>(); |
aoqi@0 | 1605 | ListBuffer<Type> deps = new ListBuffer<>(); |
aoqi@0 | 1606 | //step 1 - re-add bounds that are not dependent on ivars |
aoqi@0 | 1607 | for (Type t : prevBounds) { |
aoqi@0 | 1608 | if (!t.containsAny(instVars)) { |
aoqi@0 | 1609 | newBounds.append(t); |
aoqi@0 | 1610 | } else { |
aoqi@0 | 1611 | deps.append(t); |
aoqi@0 | 1612 | } |
aoqi@0 | 1613 | } |
aoqi@0 | 1614 | //step 2 - replace bounds |
aoqi@0 | 1615 | bounds.put(ib, newBounds.toList()); |
aoqi@0 | 1616 | //step 3 - for each dependency, add new replaced bound |
aoqi@0 | 1617 | for (Type dep : deps) { |
aoqi@0 | 1618 | addBound(ib, types.subst(dep, from, to), types, true); |
aoqi@0 | 1619 | } |
aoqi@0 | 1620 | } |
aoqi@0 | 1621 | } finally { |
aoqi@0 | 1622 | listener = prevListener; |
aoqi@0 | 1623 | if (!boundsChanged.isEmpty()) { |
aoqi@0 | 1624 | notifyChange(boundsChanged); |
aoqi@0 | 1625 | } |
aoqi@0 | 1626 | } |
aoqi@0 | 1627 | } |
aoqi@0 | 1628 | |
aoqi@0 | 1629 | private void notifyChange(EnumSet<InferenceBound> ibs) { |
aoqi@0 | 1630 | if (listener != null) { |
aoqi@0 | 1631 | listener.varChanged(this, ibs); |
aoqi@0 | 1632 | } |
aoqi@0 | 1633 | } |
aoqi@0 | 1634 | |
aoqi@0 | 1635 | public boolean isCaptured() { |
aoqi@0 | 1636 | return false; |
aoqi@0 | 1637 | } |
aoqi@0 | 1638 | } |
aoqi@0 | 1639 | |
aoqi@0 | 1640 | /** |
aoqi@0 | 1641 | * This class is used to represent synthetic captured inference variables |
aoqi@0 | 1642 | * that can be generated during nested generic method calls. The only difference |
aoqi@0 | 1643 | * between these inference variables and ordinary ones is that captured inference |
aoqi@0 | 1644 | * variables cannot get new bounds through incorporation. |
aoqi@0 | 1645 | */ |
aoqi@0 | 1646 | public static class CapturedUndetVar extends UndetVar { |
aoqi@0 | 1647 | |
aoqi@0 | 1648 | public CapturedUndetVar(CapturedType origin, Types types) { |
aoqi@0 | 1649 | super(origin, types); |
aoqi@0 | 1650 | if (!origin.lower.hasTag(BOT)) { |
aoqi@0 | 1651 | bounds.put(InferenceBound.LOWER, List.of(origin.lower)); |
aoqi@0 | 1652 | } |
aoqi@0 | 1653 | } |
aoqi@0 | 1654 | |
aoqi@0 | 1655 | @Override |
aoqi@0 | 1656 | public void addBound(InferenceBound ib, Type bound, Types types, boolean update) { |
aoqi@0 | 1657 | if (update) { |
aoqi@0 | 1658 | //only change bounds if request comes from substBounds |
aoqi@0 | 1659 | super.addBound(ib, bound, types, update); |
aoqi@0 | 1660 | } |
aoqi@0 | 1661 | } |
aoqi@0 | 1662 | |
aoqi@0 | 1663 | @Override |
aoqi@0 | 1664 | public boolean isCaptured() { |
aoqi@0 | 1665 | return true; |
aoqi@0 | 1666 | } |
aoqi@0 | 1667 | } |
aoqi@0 | 1668 | |
aoqi@0 | 1669 | /** Represents NONE. |
aoqi@0 | 1670 | */ |
aoqi@0 | 1671 | public static class JCNoType extends Type implements NoType { |
aoqi@0 | 1672 | public JCNoType() { |
aoqi@0 | 1673 | super(null); |
aoqi@0 | 1674 | } |
aoqi@0 | 1675 | |
aoqi@0 | 1676 | @Override |
aoqi@0 | 1677 | public TypeTag getTag() { |
aoqi@0 | 1678 | return NONE; |
aoqi@0 | 1679 | } |
aoqi@0 | 1680 | |
aoqi@0 | 1681 | @Override |
aoqi@0 | 1682 | public TypeKind getKind() { |
aoqi@0 | 1683 | return TypeKind.NONE; |
aoqi@0 | 1684 | } |
aoqi@0 | 1685 | |
aoqi@0 | 1686 | @Override |
aoqi@0 | 1687 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 1688 | return v.visitNoType(this, p); |
aoqi@0 | 1689 | } |
aoqi@0 | 1690 | |
aoqi@0 | 1691 | @Override |
aoqi@0 | 1692 | public boolean isCompound() { return false; } |
aoqi@0 | 1693 | } |
aoqi@0 | 1694 | |
aoqi@0 | 1695 | /** Represents VOID. |
aoqi@0 | 1696 | */ |
aoqi@0 | 1697 | public static class JCVoidType extends Type implements NoType { |
aoqi@0 | 1698 | |
aoqi@0 | 1699 | public JCVoidType() { |
aoqi@0 | 1700 | super(null); |
aoqi@0 | 1701 | } |
aoqi@0 | 1702 | |
aoqi@0 | 1703 | @Override |
aoqi@0 | 1704 | public TypeTag getTag() { |
aoqi@0 | 1705 | return VOID; |
aoqi@0 | 1706 | } |
aoqi@0 | 1707 | |
aoqi@0 | 1708 | @Override |
aoqi@0 | 1709 | public TypeKind getKind() { |
aoqi@0 | 1710 | return TypeKind.VOID; |
aoqi@0 | 1711 | } |
aoqi@0 | 1712 | |
aoqi@0 | 1713 | @Override |
aoqi@0 | 1714 | public boolean isCompound() { return false; } |
aoqi@0 | 1715 | |
aoqi@0 | 1716 | @Override |
aoqi@0 | 1717 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 1718 | return v.visitNoType(this, p); |
aoqi@0 | 1719 | } |
aoqi@0 | 1720 | |
aoqi@0 | 1721 | @Override |
aoqi@0 | 1722 | public boolean isPrimitiveOrVoid() { |
aoqi@0 | 1723 | return true; |
aoqi@0 | 1724 | } |
aoqi@0 | 1725 | } |
aoqi@0 | 1726 | |
aoqi@0 | 1727 | static class BottomType extends Type implements NullType { |
aoqi@0 | 1728 | public BottomType() { |
aoqi@0 | 1729 | super(null); |
aoqi@0 | 1730 | } |
aoqi@0 | 1731 | |
aoqi@0 | 1732 | @Override |
aoqi@0 | 1733 | public TypeTag getTag() { |
aoqi@0 | 1734 | return BOT; |
aoqi@0 | 1735 | } |
aoqi@0 | 1736 | |
aoqi@0 | 1737 | @Override |
aoqi@0 | 1738 | public TypeKind getKind() { |
aoqi@0 | 1739 | return TypeKind.NULL; |
aoqi@0 | 1740 | } |
aoqi@0 | 1741 | |
aoqi@0 | 1742 | @Override |
aoqi@0 | 1743 | public boolean isCompound() { return false; } |
aoqi@0 | 1744 | |
aoqi@0 | 1745 | @Override |
aoqi@0 | 1746 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 1747 | return v.visitNull(this, p); |
aoqi@0 | 1748 | } |
aoqi@0 | 1749 | |
aoqi@0 | 1750 | @Override |
aoqi@0 | 1751 | public Type constType(Object value) { |
aoqi@0 | 1752 | return this; |
aoqi@0 | 1753 | } |
aoqi@0 | 1754 | |
aoqi@0 | 1755 | @Override |
aoqi@0 | 1756 | public String stringValue() { |
aoqi@0 | 1757 | return "null"; |
aoqi@0 | 1758 | } |
aoqi@0 | 1759 | |
aoqi@0 | 1760 | @Override |
aoqi@0 | 1761 | public boolean isNullOrReference() { |
aoqi@0 | 1762 | return true; |
aoqi@0 | 1763 | } |
aoqi@0 | 1764 | |
aoqi@0 | 1765 | } |
aoqi@0 | 1766 | |
aoqi@0 | 1767 | public static class ErrorType extends ClassType |
aoqi@0 | 1768 | implements javax.lang.model.type.ErrorType { |
aoqi@0 | 1769 | |
aoqi@0 | 1770 | private Type originalType = null; |
aoqi@0 | 1771 | |
aoqi@0 | 1772 | public ErrorType(Type originalType, TypeSymbol tsym) { |
aoqi@0 | 1773 | super(noType, List.<Type>nil(), null); |
aoqi@0 | 1774 | this.tsym = tsym; |
aoqi@0 | 1775 | this.originalType = (originalType == null ? noType : originalType); |
aoqi@0 | 1776 | } |
aoqi@0 | 1777 | |
aoqi@0 | 1778 | public ErrorType(ClassSymbol c, Type originalType) { |
aoqi@0 | 1779 | this(originalType, c); |
aoqi@0 | 1780 | c.type = this; |
aoqi@0 | 1781 | c.kind = ERR; |
aoqi@0 | 1782 | c.members_field = new Scope.ErrorScope(c); |
aoqi@0 | 1783 | } |
aoqi@0 | 1784 | |
aoqi@0 | 1785 | @Override |
aoqi@0 | 1786 | public TypeTag getTag() { |
aoqi@0 | 1787 | return ERROR; |
aoqi@0 | 1788 | } |
aoqi@0 | 1789 | |
aoqi@0 | 1790 | @Override |
aoqi@0 | 1791 | public boolean isPartial() { |
aoqi@0 | 1792 | return true; |
aoqi@0 | 1793 | } |
aoqi@0 | 1794 | |
aoqi@0 | 1795 | @Override |
aoqi@0 | 1796 | public boolean isReference() { |
aoqi@0 | 1797 | return true; |
aoqi@0 | 1798 | } |
aoqi@0 | 1799 | |
aoqi@0 | 1800 | @Override |
aoqi@0 | 1801 | public boolean isNullOrReference() { |
aoqi@0 | 1802 | return true; |
aoqi@0 | 1803 | } |
aoqi@0 | 1804 | |
aoqi@0 | 1805 | public ErrorType(Name name, TypeSymbol container, Type originalType) { |
aoqi@0 | 1806 | this(new ClassSymbol(PUBLIC|STATIC|ACYCLIC, name, null, container), originalType); |
aoqi@0 | 1807 | } |
aoqi@0 | 1808 | |
aoqi@0 | 1809 | @Override |
aoqi@0 | 1810 | public <R,S> R accept(Type.Visitor<R,S> v, S s) { |
aoqi@0 | 1811 | return v.visitErrorType(this, s); |
aoqi@0 | 1812 | } |
aoqi@0 | 1813 | |
aoqi@0 | 1814 | public Type constType(Object constValue) { return this; } |
aoqi@0 | 1815 | public Type getEnclosingType() { return this; } |
aoqi@0 | 1816 | public Type getReturnType() { return this; } |
aoqi@0 | 1817 | public Type asSub(Symbol sym) { return this; } |
aoqi@0 | 1818 | public Type map(Mapping f) { return this; } |
aoqi@0 | 1819 | |
aoqi@0 | 1820 | public boolean isGenType(Type t) { return true; } |
aoqi@0 | 1821 | public boolean isErroneous() { return true; } |
aoqi@0 | 1822 | public boolean isCompound() { return false; } |
aoqi@0 | 1823 | public boolean isInterface() { return false; } |
aoqi@0 | 1824 | |
aoqi@0 | 1825 | public List<Type> allparams() { return List.nil(); } |
aoqi@0 | 1826 | public List<Type> getTypeArguments() { return List.nil(); } |
aoqi@0 | 1827 | |
aoqi@0 | 1828 | public TypeKind getKind() { |
aoqi@0 | 1829 | return TypeKind.ERROR; |
aoqi@0 | 1830 | } |
aoqi@0 | 1831 | |
aoqi@0 | 1832 | public Type getOriginalType() { |
aoqi@0 | 1833 | return originalType; |
aoqi@0 | 1834 | } |
aoqi@0 | 1835 | |
aoqi@0 | 1836 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 1837 | return v.visitError(this, p); |
aoqi@0 | 1838 | } |
aoqi@0 | 1839 | } |
aoqi@0 | 1840 | |
aoqi@0 | 1841 | public static class AnnotatedType extends Type |
aoqi@0 | 1842 | implements |
aoqi@0 | 1843 | javax.lang.model.type.ArrayType, |
aoqi@0 | 1844 | javax.lang.model.type.DeclaredType, |
aoqi@0 | 1845 | javax.lang.model.type.PrimitiveType, |
aoqi@0 | 1846 | javax.lang.model.type.TypeVariable, |
aoqi@0 | 1847 | javax.lang.model.type.WildcardType { |
aoqi@0 | 1848 | /** The type annotations on this type. |
aoqi@0 | 1849 | */ |
aoqi@0 | 1850 | private List<Attribute.TypeCompound> typeAnnotations; |
aoqi@0 | 1851 | |
aoqi@0 | 1852 | /** The underlying type that is annotated. |
aoqi@0 | 1853 | */ |
aoqi@0 | 1854 | private Type underlyingType; |
aoqi@0 | 1855 | |
aoqi@0 | 1856 | protected AnnotatedType(List<Attribute.TypeCompound> typeAnnotations, |
aoqi@0 | 1857 | Type underlyingType) { |
aoqi@0 | 1858 | super(underlyingType.tsym); |
aoqi@0 | 1859 | this.typeAnnotations = typeAnnotations; |
aoqi@0 | 1860 | this.underlyingType = underlyingType; |
aoqi@0 | 1861 | Assert.check(typeAnnotations != null && typeAnnotations.nonEmpty(), |
aoqi@0 | 1862 | "Can't create AnnotatedType without annotations: " + underlyingType); |
aoqi@0 | 1863 | Assert.check(!underlyingType.isAnnotated(), |
aoqi@0 | 1864 | "Can't annotate already annotated type: " + underlyingType + |
aoqi@0 | 1865 | "; adding: " + typeAnnotations); |
aoqi@0 | 1866 | } |
aoqi@0 | 1867 | |
aoqi@0 | 1868 | @Override |
aoqi@0 | 1869 | public TypeTag getTag() { |
aoqi@0 | 1870 | return underlyingType.getTag(); |
aoqi@0 | 1871 | } |
aoqi@0 | 1872 | |
aoqi@0 | 1873 | @Override |
aoqi@0 | 1874 | public boolean isAnnotated() { |
aoqi@0 | 1875 | return true; |
aoqi@0 | 1876 | } |
aoqi@0 | 1877 | |
aoqi@0 | 1878 | @Override |
aoqi@0 | 1879 | public List<Attribute.TypeCompound> getAnnotationMirrors() { |
aoqi@0 | 1880 | return typeAnnotations; |
aoqi@0 | 1881 | } |
aoqi@0 | 1882 | |
aoqi@0 | 1883 | |
aoqi@0 | 1884 | @Override |
aoqi@0 | 1885 | public TypeKind getKind() { |
aoqi@0 | 1886 | return underlyingType.getKind(); |
aoqi@0 | 1887 | } |
aoqi@0 | 1888 | |
aoqi@0 | 1889 | @Override |
aoqi@0 | 1890 | public Type unannotatedType() { |
aoqi@0 | 1891 | return underlyingType; |
aoqi@0 | 1892 | } |
aoqi@0 | 1893 | |
aoqi@0 | 1894 | @Override |
aoqi@0 | 1895 | public <R,S> R accept(Type.Visitor<R,S> v, S s) { |
aoqi@0 | 1896 | return v.visitAnnotatedType(this, s); |
aoqi@0 | 1897 | } |
aoqi@0 | 1898 | |
aoqi@0 | 1899 | @Override |
aoqi@0 | 1900 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 1901 | return underlyingType.accept(v, p); |
aoqi@0 | 1902 | } |
aoqi@0 | 1903 | |
aoqi@0 | 1904 | @Override |
aoqi@0 | 1905 | public Type map(Mapping f) { |
aoqi@0 | 1906 | underlyingType.map(f); |
aoqi@0 | 1907 | return this; |
aoqi@0 | 1908 | } |
aoqi@0 | 1909 | |
aoqi@0 | 1910 | @Override |
aoqi@0 | 1911 | public Type constType(Object constValue) { return underlyingType.constType(constValue); } |
aoqi@0 | 1912 | @Override |
aoqi@0 | 1913 | public Type getEnclosingType() { return underlyingType.getEnclosingType(); } |
aoqi@0 | 1914 | |
aoqi@0 | 1915 | @Override |
aoqi@0 | 1916 | public Type getReturnType() { return underlyingType.getReturnType(); } |
aoqi@0 | 1917 | @Override |
aoqi@0 | 1918 | public List<Type> getTypeArguments() { return underlyingType.getTypeArguments(); } |
aoqi@0 | 1919 | @Override |
aoqi@0 | 1920 | public List<Type> getParameterTypes() { return underlyingType.getParameterTypes(); } |
aoqi@0 | 1921 | @Override |
aoqi@0 | 1922 | public Type getReceiverType() { return underlyingType.getReceiverType(); } |
aoqi@0 | 1923 | @Override |
aoqi@0 | 1924 | public List<Type> getThrownTypes() { return underlyingType.getThrownTypes(); } |
aoqi@0 | 1925 | @Override |
aoqi@0 | 1926 | public Type getUpperBound() { return underlyingType.getUpperBound(); } |
aoqi@0 | 1927 | @Override |
aoqi@0 | 1928 | public Type getLowerBound() { return underlyingType.getLowerBound(); } |
aoqi@0 | 1929 | |
aoqi@0 | 1930 | @Override |
aoqi@0 | 1931 | public boolean isErroneous() { return underlyingType.isErroneous(); } |
aoqi@0 | 1932 | @Override |
aoqi@0 | 1933 | public boolean isCompound() { return underlyingType.isCompound(); } |
aoqi@0 | 1934 | @Override |
aoqi@0 | 1935 | public boolean isInterface() { return underlyingType.isInterface(); } |
aoqi@0 | 1936 | @Override |
aoqi@0 | 1937 | public List<Type> allparams() { return underlyingType.allparams(); } |
aoqi@0 | 1938 | @Override |
aoqi@0 | 1939 | public boolean isPrimitive() { return underlyingType.isPrimitive(); } |
aoqi@0 | 1940 | @Override |
aoqi@0 | 1941 | public boolean isPrimitiveOrVoid() { return underlyingType.isPrimitiveOrVoid(); } |
aoqi@0 | 1942 | @Override |
aoqi@0 | 1943 | public boolean isNumeric() { return underlyingType.isNumeric(); } |
aoqi@0 | 1944 | @Override |
aoqi@0 | 1945 | public boolean isReference() { return underlyingType.isReference(); } |
aoqi@0 | 1946 | @Override |
aoqi@0 | 1947 | public boolean isNullOrReference() { return underlyingType.isNullOrReference(); } |
aoqi@0 | 1948 | @Override |
aoqi@0 | 1949 | public boolean isPartial() { return underlyingType.isPartial(); } |
aoqi@0 | 1950 | @Override |
aoqi@0 | 1951 | public boolean isParameterized() { return underlyingType.isParameterized(); } |
aoqi@0 | 1952 | @Override |
aoqi@0 | 1953 | public boolean isRaw() { return underlyingType.isRaw(); } |
aoqi@0 | 1954 | @Override |
aoqi@0 | 1955 | public boolean isFinal() { return underlyingType.isFinal(); } |
aoqi@0 | 1956 | @Override |
aoqi@0 | 1957 | public boolean isSuperBound() { return underlyingType.isSuperBound(); } |
aoqi@0 | 1958 | @Override |
aoqi@0 | 1959 | public boolean isExtendsBound() { return underlyingType.isExtendsBound(); } |
aoqi@0 | 1960 | @Override |
aoqi@0 | 1961 | public boolean isUnbound() { return underlyingType.isUnbound(); } |
aoqi@0 | 1962 | |
aoqi@0 | 1963 | @Override |
aoqi@0 | 1964 | public String toString() { |
aoqi@0 | 1965 | // This method is only used for internal debugging output. |
aoqi@0 | 1966 | // See |
aoqi@0 | 1967 | // com.sun.tools.javac.code.Printer.visitAnnotatedType(AnnotatedType, Locale) |
aoqi@0 | 1968 | // for the user-visible logic. |
aoqi@0 | 1969 | if (typeAnnotations != null && |
aoqi@0 | 1970 | !typeAnnotations.isEmpty()) { |
aoqi@0 | 1971 | return "(" + typeAnnotations.toString() + " :: " + underlyingType.toString() + ")"; |
aoqi@0 | 1972 | } else { |
aoqi@0 | 1973 | return "({} :: " + underlyingType.toString() +")"; |
aoqi@0 | 1974 | } |
aoqi@0 | 1975 | } |
aoqi@0 | 1976 | |
aoqi@0 | 1977 | @Override |
aoqi@0 | 1978 | public boolean contains(Type t) { return underlyingType.contains(t); } |
aoqi@0 | 1979 | |
aoqi@0 | 1980 | @Override |
aoqi@0 | 1981 | public Type withTypeVar(Type t) { |
aoqi@0 | 1982 | // Don't create a new AnnotatedType, as 'this' will |
aoqi@0 | 1983 | // get its annotations set later. |
aoqi@0 | 1984 | underlyingType = underlyingType.withTypeVar(t); |
aoqi@0 | 1985 | return this; |
aoqi@0 | 1986 | } |
aoqi@0 | 1987 | |
aoqi@0 | 1988 | // TODO: attach annotations? |
aoqi@0 | 1989 | @Override |
aoqi@0 | 1990 | public TypeSymbol asElement() { return underlyingType.asElement(); } |
aoqi@0 | 1991 | |
aoqi@0 | 1992 | // TODO: attach annotations? |
aoqi@0 | 1993 | @Override |
aoqi@0 | 1994 | public MethodType asMethodType() { return underlyingType.asMethodType(); } |
aoqi@0 | 1995 | |
aoqi@0 | 1996 | @Override |
aoqi@0 | 1997 | public void complete() { underlyingType.complete(); } |
aoqi@0 | 1998 | |
aoqi@0 | 1999 | @Override |
aoqi@0 | 2000 | public TypeMirror getComponentType() { return ((ArrayType)underlyingType).getComponentType(); } |
aoqi@0 | 2001 | |
aoqi@0 | 2002 | // The result is an ArrayType, but only in the model sense, not the Type sense. |
aoqi@0 | 2003 | public Type makeVarargs() { |
aoqi@0 | 2004 | return ((ArrayType) underlyingType).makeVarargs().annotatedType(typeAnnotations); |
aoqi@0 | 2005 | } |
aoqi@0 | 2006 | |
aoqi@0 | 2007 | @Override |
aoqi@0 | 2008 | public TypeMirror getExtendsBound() { return ((WildcardType)underlyingType).getExtendsBound(); } |
aoqi@0 | 2009 | @Override |
aoqi@0 | 2010 | public TypeMirror getSuperBound() { return ((WildcardType)underlyingType).getSuperBound(); } |
aoqi@0 | 2011 | } |
aoqi@0 | 2012 | |
aoqi@0 | 2013 | public static class UnknownType extends Type { |
aoqi@0 | 2014 | |
aoqi@0 | 2015 | public UnknownType() { |
aoqi@0 | 2016 | super(null); |
aoqi@0 | 2017 | } |
aoqi@0 | 2018 | |
aoqi@0 | 2019 | @Override |
aoqi@0 | 2020 | public TypeTag getTag() { |
aoqi@0 | 2021 | return UNKNOWN; |
aoqi@0 | 2022 | } |
aoqi@0 | 2023 | |
aoqi@0 | 2024 | @Override |
aoqi@0 | 2025 | public <R, P> R accept(TypeVisitor<R, P> v, P p) { |
aoqi@0 | 2026 | return v.visitUnknown(this, p); |
aoqi@0 | 2027 | } |
aoqi@0 | 2028 | |
aoqi@0 | 2029 | @Override |
aoqi@0 | 2030 | public boolean isPartial() { |
aoqi@0 | 2031 | return true; |
aoqi@0 | 2032 | } |
aoqi@0 | 2033 | } |
aoqi@0 | 2034 | |
aoqi@0 | 2035 | /** |
aoqi@0 | 2036 | * A visitor for types. A visitor is used to implement operations |
aoqi@0 | 2037 | * (or relations) on types. Most common operations on types are |
aoqi@0 | 2038 | * binary relations and this interface is designed for binary |
aoqi@0 | 2039 | * relations, that is, operations of the form |
aoqi@0 | 2040 | * Type × S → R. |
aoqi@0 | 2041 | * <!-- In plain text: Type x S -> R --> |
aoqi@0 | 2042 | * |
aoqi@0 | 2043 | * @param <R> the return type of the operation implemented by this |
aoqi@0 | 2044 | * visitor; use Void if no return type is needed. |
aoqi@0 | 2045 | * @param <S> the type of the second argument (the first being the |
aoqi@0 | 2046 | * type itself) of the operation implemented by this visitor; use |
aoqi@0 | 2047 | * Void if a second argument is not needed. |
aoqi@0 | 2048 | */ |
aoqi@0 | 2049 | public interface Visitor<R,S> { |
aoqi@0 | 2050 | R visitClassType(ClassType t, S s); |
aoqi@0 | 2051 | R visitWildcardType(WildcardType t, S s); |
aoqi@0 | 2052 | R visitArrayType(ArrayType t, S s); |
aoqi@0 | 2053 | R visitMethodType(MethodType t, S s); |
aoqi@0 | 2054 | R visitPackageType(PackageType t, S s); |
aoqi@0 | 2055 | R visitTypeVar(TypeVar t, S s); |
aoqi@0 | 2056 | R visitCapturedType(CapturedType t, S s); |
aoqi@0 | 2057 | R visitForAll(ForAll t, S s); |
aoqi@0 | 2058 | R visitUndetVar(UndetVar t, S s); |
aoqi@0 | 2059 | R visitErrorType(ErrorType t, S s); |
aoqi@0 | 2060 | R visitAnnotatedType(AnnotatedType t, S s); |
aoqi@0 | 2061 | R visitType(Type t, S s); |
aoqi@0 | 2062 | } |
aoqi@0 | 2063 | } |