1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/classes/com/sun/tools/javac/comp/MemberEnter.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,1671 @@
1.4 +/*
1.5 + * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package com.sun.tools.javac.comp;
1.30 +
1.31 +import java.util.HashMap;
1.32 +import java.util.HashSet;
1.33 +import java.util.LinkedHashMap;
1.34 +import java.util.Map;
1.35 +import java.util.Set;
1.36 +
1.37 +import javax.tools.JavaFileObject;
1.38 +
1.39 +import com.sun.tools.javac.code.*;
1.40 +import com.sun.tools.javac.jvm.*;
1.41 +import com.sun.tools.javac.tree.*;
1.42 +import com.sun.tools.javac.util.*;
1.43 +
1.44 +import com.sun.tools.javac.code.Type.*;
1.45 +import com.sun.tools.javac.code.Symbol.*;
1.46 +import com.sun.tools.javac.tree.JCTree.*;
1.47 +
1.48 +import static com.sun.tools.javac.code.Flags.*;
1.49 +import static com.sun.tools.javac.code.Flags.ANNOTATION;
1.50 +import static com.sun.tools.javac.code.Kinds.*;
1.51 +import static com.sun.tools.javac.code.TypeTag.CLASS;
1.52 +import static com.sun.tools.javac.code.TypeTag.ERROR;
1.53 +import static com.sun.tools.javac.code.TypeTag.TYPEVAR;
1.54 +import static com.sun.tools.javac.tree.JCTree.Tag.*;
1.55 +import com.sun.tools.javac.util.JCDiagnostic.DiagnosticFlag;
1.56 +import com.sun.tools.javac.util.JCDiagnostic.DiagnosticPosition;
1.57 +
1.58 +/** This is the second phase of Enter, in which classes are completed
1.59 + * by entering their members into the class scope using
1.60 + * MemberEnter.complete(). See Enter for an overview.
1.61 + *
1.62 + * <p><b>This is NOT part of any supported API.
1.63 + * If you write code that depends on this, you do so at your own risk.
1.64 + * This code and its internal interfaces are subject to change or
1.65 + * deletion without notice.</b>
1.66 + */
1.67 +public class MemberEnter extends JCTree.Visitor implements Completer {
1.68 + protected static final Context.Key<MemberEnter> memberEnterKey =
1.69 + new Context.Key<MemberEnter>();
1.70 +
1.71 + /** A switch to determine whether we check for package/class conflicts
1.72 + */
1.73 + final static boolean checkClash = true;
1.74 +
1.75 + private final Names names;
1.76 + private final Enter enter;
1.77 + private final Log log;
1.78 + private final Check chk;
1.79 + private final Attr attr;
1.80 + private final Symtab syms;
1.81 + private final TreeMaker make;
1.82 + private final ClassReader reader;
1.83 + private final Todo todo;
1.84 + private final Annotate annotate;
1.85 + private final TypeAnnotations typeAnnotations;
1.86 + private final Types types;
1.87 + private final JCDiagnostic.Factory diags;
1.88 + private final Source source;
1.89 + private final Target target;
1.90 + private final DeferredLintHandler deferredLintHandler;
1.91 + private final Lint lint;
1.92 + private final TypeEnvs typeEnvs;
1.93 +
1.94 + public static MemberEnter instance(Context context) {
1.95 + MemberEnter instance = context.get(memberEnterKey);
1.96 + if (instance == null)
1.97 + instance = new MemberEnter(context);
1.98 + return instance;
1.99 + }
1.100 +
1.101 + protected MemberEnter(Context context) {
1.102 + context.put(memberEnterKey, this);
1.103 + names = Names.instance(context);
1.104 + enter = Enter.instance(context);
1.105 + log = Log.instance(context);
1.106 + chk = Check.instance(context);
1.107 + attr = Attr.instance(context);
1.108 + syms = Symtab.instance(context);
1.109 + make = TreeMaker.instance(context);
1.110 + reader = ClassReader.instance(context);
1.111 + todo = Todo.instance(context);
1.112 + annotate = Annotate.instance(context);
1.113 + typeAnnotations = TypeAnnotations.instance(context);
1.114 + types = Types.instance(context);
1.115 + diags = JCDiagnostic.Factory.instance(context);
1.116 + source = Source.instance(context);
1.117 + target = Target.instance(context);
1.118 + deferredLintHandler = DeferredLintHandler.instance(context);
1.119 + lint = Lint.instance(context);
1.120 + typeEnvs = TypeEnvs.instance(context);
1.121 + allowTypeAnnos = source.allowTypeAnnotations();
1.122 + allowRepeatedAnnos = source.allowRepeatedAnnotations();
1.123 + }
1.124 +
1.125 + /** Switch: support type annotations.
1.126 + */
1.127 + boolean allowTypeAnnos;
1.128 +
1.129 + boolean allowRepeatedAnnos;
1.130 +
1.131 + /** A queue for classes whose members still need to be entered into the
1.132 + * symbol table.
1.133 + */
1.134 + ListBuffer<Env<AttrContext>> halfcompleted = new ListBuffer<Env<AttrContext>>();
1.135 +
1.136 + /** Set to true only when the first of a set of classes is
1.137 + * processed from the half completed queue.
1.138 + */
1.139 + boolean isFirst = true;
1.140 +
1.141 + /** A flag to disable completion from time to time during member
1.142 + * enter, as we only need to look up types. This avoids
1.143 + * unnecessarily deep recursion.
1.144 + */
1.145 + boolean completionEnabled = true;
1.146 +
1.147 + /* ---------- Processing import clauses ----------------
1.148 + */
1.149 +
1.150 + /** Import all classes of a class or package on demand.
1.151 + * @param pos Position to be used for error reporting.
1.152 + * @param tsym The class or package the members of which are imported.
1.153 + * @param env The env in which the imported classes will be entered.
1.154 + */
1.155 + private void importAll(int pos,
1.156 + final TypeSymbol tsym,
1.157 + Env<AttrContext> env) {
1.158 + // Check that packages imported from exist (JLS ???).
1.159 + if (tsym.kind == PCK && tsym.members().elems == null && !tsym.exists()) {
1.160 + // If we can't find java.lang, exit immediately.
1.161 + if (((PackageSymbol)tsym).fullname.equals(names.java_lang)) {
1.162 + JCDiagnostic msg = diags.fragment("fatal.err.no.java.lang");
1.163 + throw new FatalError(msg);
1.164 + } else {
1.165 + log.error(DiagnosticFlag.RESOLVE_ERROR, pos, "doesnt.exist", tsym);
1.166 + }
1.167 + }
1.168 + env.toplevel.starImportScope.importAll(tsym.members());
1.169 + }
1.170 +
1.171 + /** Import all static members of a class or package on demand.
1.172 + * @param pos Position to be used for error reporting.
1.173 + * @param tsym The class or package the members of which are imported.
1.174 + * @param env The env in which the imported classes will be entered.
1.175 + */
1.176 + private void importStaticAll(int pos,
1.177 + final TypeSymbol tsym,
1.178 + Env<AttrContext> env) {
1.179 + final JavaFileObject sourcefile = env.toplevel.sourcefile;
1.180 + final Scope toScope = env.toplevel.starImportScope;
1.181 + final PackageSymbol packge = env.toplevel.packge;
1.182 + final TypeSymbol origin = tsym;
1.183 +
1.184 + // enter imported types immediately
1.185 + new Object() {
1.186 + Set<Symbol> processed = new HashSet<Symbol>();
1.187 + void importFrom(TypeSymbol tsym) {
1.188 + if (tsym == null || !processed.add(tsym))
1.189 + return;
1.190 +
1.191 + // also import inherited names
1.192 + importFrom(types.supertype(tsym.type).tsym);
1.193 + for (Type t : types.interfaces(tsym.type))
1.194 + importFrom(t.tsym);
1.195 +
1.196 + final Scope fromScope = tsym.members();
1.197 + for (Scope.Entry e = fromScope.elems; e != null; e = e.sibling) {
1.198 + Symbol sym = e.sym;
1.199 + if (sym.kind == TYP &&
1.200 + (sym.flags() & STATIC) != 0 &&
1.201 + staticImportAccessible(sym, packge) &&
1.202 + sym.isMemberOf(origin, types) &&
1.203 + !toScope.includes(sym))
1.204 + toScope.enter(sym, fromScope, origin.members(), true);
1.205 + }
1.206 + }
1.207 + }.importFrom(tsym);
1.208 +
1.209 + // enter non-types before annotations that might use them
1.210 + annotate.earlier(new Annotate.Worker() {
1.211 + Set<Symbol> processed = new HashSet<Symbol>();
1.212 +
1.213 + public String toString() {
1.214 + return "import static " + tsym + ".*" + " in " + sourcefile;
1.215 + }
1.216 + void importFrom(TypeSymbol tsym) {
1.217 + if (tsym == null || !processed.add(tsym))
1.218 + return;
1.219 +
1.220 + // also import inherited names
1.221 + importFrom(types.supertype(tsym.type).tsym);
1.222 + for (Type t : types.interfaces(tsym.type))
1.223 + importFrom(t.tsym);
1.224 +
1.225 + final Scope fromScope = tsym.members();
1.226 + for (Scope.Entry e = fromScope.elems; e != null; e = e.sibling) {
1.227 + Symbol sym = e.sym;
1.228 + if (sym.isStatic() && sym.kind != TYP &&
1.229 + staticImportAccessible(sym, packge) &&
1.230 + !toScope.includes(sym) &&
1.231 + sym.isMemberOf(origin, types)) {
1.232 + toScope.enter(sym, fromScope, origin.members(), true);
1.233 + }
1.234 + }
1.235 + }
1.236 + public void run() {
1.237 + importFrom(tsym);
1.238 + }
1.239 + });
1.240 + }
1.241 +
1.242 + // is the sym accessible everywhere in packge?
1.243 + boolean staticImportAccessible(Symbol sym, PackageSymbol packge) {
1.244 + int flags = (int)(sym.flags() & AccessFlags);
1.245 + switch (flags) {
1.246 + default:
1.247 + case PUBLIC:
1.248 + return true;
1.249 + case PRIVATE:
1.250 + return false;
1.251 + case 0:
1.252 + case PROTECTED:
1.253 + return sym.packge() == packge;
1.254 + }
1.255 + }
1.256 +
1.257 + /** Import statics types of a given name. Non-types are handled in Attr.
1.258 + * @param pos Position to be used for error reporting.
1.259 + * @param tsym The class from which the name is imported.
1.260 + * @param name The (simple) name being imported.
1.261 + * @param env The environment containing the named import
1.262 + * scope to add to.
1.263 + */
1.264 + private void importNamedStatic(final DiagnosticPosition pos,
1.265 + final TypeSymbol tsym,
1.266 + final Name name,
1.267 + final Env<AttrContext> env) {
1.268 + if (tsym.kind != TYP) {
1.269 + log.error(DiagnosticFlag.RECOVERABLE, pos, "static.imp.only.classes.and.interfaces");
1.270 + return;
1.271 + }
1.272 +
1.273 + final Scope toScope = env.toplevel.namedImportScope;
1.274 + final PackageSymbol packge = env.toplevel.packge;
1.275 + final TypeSymbol origin = tsym;
1.276 +
1.277 + // enter imported types immediately
1.278 + new Object() {
1.279 + Set<Symbol> processed = new HashSet<Symbol>();
1.280 + void importFrom(TypeSymbol tsym) {
1.281 + if (tsym == null || !processed.add(tsym))
1.282 + return;
1.283 +
1.284 + // also import inherited names
1.285 + importFrom(types.supertype(tsym.type).tsym);
1.286 + for (Type t : types.interfaces(tsym.type))
1.287 + importFrom(t.tsym);
1.288 +
1.289 + for (Scope.Entry e = tsym.members().lookup(name);
1.290 + e.scope != null;
1.291 + e = e.next()) {
1.292 + Symbol sym = e.sym;
1.293 + if (sym.isStatic() &&
1.294 + sym.kind == TYP &&
1.295 + staticImportAccessible(sym, packge) &&
1.296 + sym.isMemberOf(origin, types) &&
1.297 + chk.checkUniqueStaticImport(pos, sym, toScope))
1.298 + toScope.enter(sym, sym.owner.members(), origin.members(), true);
1.299 + }
1.300 + }
1.301 + }.importFrom(tsym);
1.302 +
1.303 + // enter non-types before annotations that might use them
1.304 + annotate.earlier(new Annotate.Worker() {
1.305 + Set<Symbol> processed = new HashSet<Symbol>();
1.306 + boolean found = false;
1.307 +
1.308 + public String toString() {
1.309 + return "import static " + tsym + "." + name;
1.310 + }
1.311 + void importFrom(TypeSymbol tsym) {
1.312 + if (tsym == null || !processed.add(tsym))
1.313 + return;
1.314 +
1.315 + // also import inherited names
1.316 + importFrom(types.supertype(tsym.type).tsym);
1.317 + for (Type t : types.interfaces(tsym.type))
1.318 + importFrom(t.tsym);
1.319 +
1.320 + for (Scope.Entry e = tsym.members().lookup(name);
1.321 + e.scope != null;
1.322 + e = e.next()) {
1.323 + Symbol sym = e.sym;
1.324 + if (sym.isStatic() &&
1.325 + staticImportAccessible(sym, packge) &&
1.326 + sym.isMemberOf(origin, types)) {
1.327 + found = true;
1.328 + if (sym.kind != TYP) {
1.329 + toScope.enter(sym, sym.owner.members(), origin.members(), true);
1.330 + }
1.331 + }
1.332 + }
1.333 + }
1.334 + public void run() {
1.335 + JavaFileObject prev = log.useSource(env.toplevel.sourcefile);
1.336 + try {
1.337 + importFrom(tsym);
1.338 + if (!found) {
1.339 + log.error(pos, "cant.resolve.location",
1.340 + KindName.STATIC,
1.341 + name, List.<Type>nil(), List.<Type>nil(),
1.342 + Kinds.typeKindName(tsym.type),
1.343 + tsym.type);
1.344 + }
1.345 + } finally {
1.346 + log.useSource(prev);
1.347 + }
1.348 + }
1.349 + });
1.350 + }
1.351 + /** Import given class.
1.352 + * @param pos Position to be used for error reporting.
1.353 + * @param tsym The class to be imported.
1.354 + * @param env The environment containing the named import
1.355 + * scope to add to.
1.356 + */
1.357 + private void importNamed(DiagnosticPosition pos, Symbol tsym, Env<AttrContext> env) {
1.358 + if (tsym.kind == TYP &&
1.359 + chk.checkUniqueImport(pos, tsym, env.toplevel.namedImportScope))
1.360 + env.toplevel.namedImportScope.enter(tsym, tsym.owner.members());
1.361 + }
1.362 +
1.363 + /** Construct method type from method signature.
1.364 + * @param typarams The method's type parameters.
1.365 + * @param params The method's value parameters.
1.366 + * @param res The method's result type,
1.367 + * null if it is a constructor.
1.368 + * @param recvparam The method's receiver parameter,
1.369 + * null if none given; TODO: or already set here?
1.370 + * @param thrown The method's thrown exceptions.
1.371 + * @param env The method's (local) environment.
1.372 + */
1.373 + Type signature(MethodSymbol msym,
1.374 + List<JCTypeParameter> typarams,
1.375 + List<JCVariableDecl> params,
1.376 + JCTree res,
1.377 + JCVariableDecl recvparam,
1.378 + List<JCExpression> thrown,
1.379 + Env<AttrContext> env) {
1.380 +
1.381 + // Enter and attribute type parameters.
1.382 + List<Type> tvars = enter.classEnter(typarams, env);
1.383 + attr.attribTypeVariables(typarams, env);
1.384 +
1.385 + // Enter and attribute value parameters.
1.386 + ListBuffer<Type> argbuf = new ListBuffer<Type>();
1.387 + for (List<JCVariableDecl> l = params; l.nonEmpty(); l = l.tail) {
1.388 + memberEnter(l.head, env);
1.389 + argbuf.append(l.head.vartype.type);
1.390 + }
1.391 +
1.392 + // Attribute result type, if one is given.
1.393 + Type restype = res == null ? syms.voidType : attr.attribType(res, env);
1.394 +
1.395 + // Attribute receiver type, if one is given.
1.396 + Type recvtype;
1.397 + if (recvparam!=null) {
1.398 + memberEnter(recvparam, env);
1.399 + recvtype = recvparam.vartype.type;
1.400 + } else {
1.401 + recvtype = null;
1.402 + }
1.403 +
1.404 + // Attribute thrown exceptions.
1.405 + ListBuffer<Type> thrownbuf = new ListBuffer<Type>();
1.406 + for (List<JCExpression> l = thrown; l.nonEmpty(); l = l.tail) {
1.407 + Type exc = attr.attribType(l.head, env);
1.408 + if (!exc.hasTag(TYPEVAR)) {
1.409 + exc = chk.checkClassType(l.head.pos(), exc);
1.410 + } else if (exc.tsym.owner == msym) {
1.411 + //mark inference variables in 'throws' clause
1.412 + exc.tsym.flags_field |= THROWS;
1.413 + }
1.414 + thrownbuf.append(exc);
1.415 + }
1.416 + MethodType mtype = new MethodType(argbuf.toList(),
1.417 + restype,
1.418 + thrownbuf.toList(),
1.419 + syms.methodClass);
1.420 + mtype.recvtype = recvtype;
1.421 +
1.422 + return tvars.isEmpty() ? mtype : new ForAll(tvars, mtype);
1.423 + }
1.424 +
1.425 +/* ********************************************************************
1.426 + * Visitor methods for member enter
1.427 + *********************************************************************/
1.428 +
1.429 + /** Visitor argument: the current environment
1.430 + */
1.431 + protected Env<AttrContext> env;
1.432 +
1.433 + /** Enter field and method definitions and process import
1.434 + * clauses, catching any completion failure exceptions.
1.435 + */
1.436 + protected void memberEnter(JCTree tree, Env<AttrContext> env) {
1.437 + Env<AttrContext> prevEnv = this.env;
1.438 + try {
1.439 + this.env = env;
1.440 + tree.accept(this);
1.441 + } catch (CompletionFailure ex) {
1.442 + chk.completionError(tree.pos(), ex);
1.443 + } finally {
1.444 + this.env = prevEnv;
1.445 + }
1.446 + }
1.447 +
1.448 + /** Enter members from a list of trees.
1.449 + */
1.450 + void memberEnter(List<? extends JCTree> trees, Env<AttrContext> env) {
1.451 + for (List<? extends JCTree> l = trees; l.nonEmpty(); l = l.tail)
1.452 + memberEnter(l.head, env);
1.453 + }
1.454 +
1.455 + /** Enter members for a class.
1.456 + */
1.457 + void finishClass(JCClassDecl tree, Env<AttrContext> env) {
1.458 + if ((tree.mods.flags & Flags.ENUM) != 0 &&
1.459 + (types.supertype(tree.sym.type).tsym.flags() & Flags.ENUM) == 0) {
1.460 + addEnumMembers(tree, env);
1.461 + }
1.462 + memberEnter(tree.defs, env);
1.463 + }
1.464 +
1.465 + /** Add the implicit members for an enum type
1.466 + * to the symbol table.
1.467 + */
1.468 + private void addEnumMembers(JCClassDecl tree, Env<AttrContext> env) {
1.469 + JCExpression valuesType = make.Type(new ArrayType(tree.sym.type, syms.arrayClass));
1.470 +
1.471 + // public static T[] values() { return ???; }
1.472 + JCMethodDecl values = make.
1.473 + MethodDef(make.Modifiers(Flags.PUBLIC|Flags.STATIC),
1.474 + names.values,
1.475 + valuesType,
1.476 + List.<JCTypeParameter>nil(),
1.477 + List.<JCVariableDecl>nil(),
1.478 + List.<JCExpression>nil(), // thrown
1.479 + null, //make.Block(0, Tree.emptyList.prepend(make.Return(make.Ident(names._null)))),
1.480 + null);
1.481 + memberEnter(values, env);
1.482 +
1.483 + // public static T valueOf(String name) { return ???; }
1.484 + JCMethodDecl valueOf = make.
1.485 + MethodDef(make.Modifiers(Flags.PUBLIC|Flags.STATIC),
1.486 + names.valueOf,
1.487 + make.Type(tree.sym.type),
1.488 + List.<JCTypeParameter>nil(),
1.489 + List.of(make.VarDef(make.Modifiers(Flags.PARAMETER |
1.490 + Flags.MANDATED),
1.491 + names.fromString("name"),
1.492 + make.Type(syms.stringType), null)),
1.493 + List.<JCExpression>nil(), // thrown
1.494 + null, //make.Block(0, Tree.emptyList.prepend(make.Return(make.Ident(names._null)))),
1.495 + null);
1.496 + memberEnter(valueOf, env);
1.497 + }
1.498 +
1.499 + public void visitTopLevel(JCCompilationUnit tree) {
1.500 + if (tree.starImportScope.elems != null) {
1.501 + // we must have already processed this toplevel
1.502 + return;
1.503 + }
1.504 +
1.505 + // check that no class exists with same fully qualified name as
1.506 + // toplevel package
1.507 + if (checkClash && tree.pid != null) {
1.508 + Symbol p = tree.packge;
1.509 + while (p.owner != syms.rootPackage) {
1.510 + p.owner.complete(); // enter all class members of p
1.511 + if (syms.classes.get(p.getQualifiedName()) != null) {
1.512 + log.error(tree.pos,
1.513 + "pkg.clashes.with.class.of.same.name",
1.514 + p);
1.515 + }
1.516 + p = p.owner;
1.517 + }
1.518 + }
1.519 +
1.520 + // process package annotations
1.521 + annotateLater(tree.packageAnnotations, env, tree.packge, null);
1.522 +
1.523 + DiagnosticPosition prevLintPos = deferredLintHandler.immediate();
1.524 + Lint prevLint = chk.setLint(lint);
1.525 +
1.526 + try {
1.527 + // Import-on-demand java.lang.
1.528 + importAll(tree.pos, reader.enterPackage(names.java_lang), env);
1.529 +
1.530 + // Process all import clauses.
1.531 + memberEnter(tree.defs, env);
1.532 + } finally {
1.533 + chk.setLint(prevLint);
1.534 + deferredLintHandler.setPos(prevLintPos);
1.535 + }
1.536 + }
1.537 +
1.538 + // process the non-static imports and the static imports of types.
1.539 + public void visitImport(JCImport tree) {
1.540 + JCFieldAccess imp = (JCFieldAccess)tree.qualid;
1.541 + Name name = TreeInfo.name(imp);
1.542 +
1.543 + // Create a local environment pointing to this tree to disable
1.544 + // effects of other imports in Resolve.findGlobalType
1.545 + Env<AttrContext> localEnv = env.dup(tree);
1.546 +
1.547 + TypeSymbol p = attr.attribImportQualifier(tree, localEnv).tsym;
1.548 + if (name == names.asterisk) {
1.549 + // Import on demand.
1.550 + chk.checkCanonical(imp.selected);
1.551 + if (tree.staticImport)
1.552 + importStaticAll(tree.pos, p, env);
1.553 + else
1.554 + importAll(tree.pos, p, env);
1.555 + } else {
1.556 + // Named type import.
1.557 + if (tree.staticImport) {
1.558 + importNamedStatic(tree.pos(), p, name, localEnv);
1.559 + chk.checkCanonical(imp.selected);
1.560 + } else {
1.561 + TypeSymbol c = attribImportType(imp, localEnv).tsym;
1.562 + chk.checkCanonical(imp);
1.563 + importNamed(tree.pos(), c, env);
1.564 + }
1.565 + }
1.566 + }
1.567 +
1.568 + public void visitMethodDef(JCMethodDecl tree) {
1.569 + Scope enclScope = enter.enterScope(env);
1.570 + MethodSymbol m = new MethodSymbol(0, tree.name, null, enclScope.owner);
1.571 + m.flags_field = chk.checkFlags(tree.pos(), tree.mods.flags, m, tree);
1.572 + tree.sym = m;
1.573 +
1.574 + //if this is a default method, add the DEFAULT flag to the enclosing interface
1.575 + if ((tree.mods.flags & DEFAULT) != 0) {
1.576 + m.enclClass().flags_field |= DEFAULT;
1.577 + }
1.578 +
1.579 + Env<AttrContext> localEnv = methodEnv(tree, env);
1.580 +
1.581 + annotate.enterStart();
1.582 + try {
1.583 + DiagnosticPosition prevLintPos = deferredLintHandler.setPos(tree.pos());
1.584 + try {
1.585 + // Compute the method type
1.586 + m.type = signature(m, tree.typarams, tree.params,
1.587 + tree.restype, tree.recvparam,
1.588 + tree.thrown,
1.589 + localEnv);
1.590 + } finally {
1.591 + deferredLintHandler.setPos(prevLintPos);
1.592 + }
1.593 +
1.594 + if (types.isSignaturePolymorphic(m)) {
1.595 + m.flags_field |= SIGNATURE_POLYMORPHIC;
1.596 + }
1.597 +
1.598 + // Set m.params
1.599 + ListBuffer<VarSymbol> params = new ListBuffer<VarSymbol>();
1.600 + JCVariableDecl lastParam = null;
1.601 + for (List<JCVariableDecl> l = tree.params; l.nonEmpty(); l = l.tail) {
1.602 + JCVariableDecl param = lastParam = l.head;
1.603 + params.append(Assert.checkNonNull(param.sym));
1.604 + }
1.605 + m.params = params.toList();
1.606 +
1.607 + // mark the method varargs, if necessary
1.608 + if (lastParam != null && (lastParam.mods.flags & Flags.VARARGS) != 0)
1.609 + m.flags_field |= Flags.VARARGS;
1.610 +
1.611 + localEnv.info.scope.leave();
1.612 + if (chk.checkUnique(tree.pos(), m, enclScope)) {
1.613 + enclScope.enter(m);
1.614 + }
1.615 +
1.616 + annotateLater(tree.mods.annotations, localEnv, m, tree.pos());
1.617 + // Visit the signature of the method. Note that
1.618 + // TypeAnnotate doesn't descend into the body.
1.619 + typeAnnotate(tree, localEnv, m, tree.pos());
1.620 +
1.621 + if (tree.defaultValue != null)
1.622 + annotateDefaultValueLater(tree.defaultValue, localEnv, m);
1.623 + } finally {
1.624 + annotate.enterDone();
1.625 + }
1.626 + }
1.627 +
1.628 + /** Create a fresh environment for method bodies.
1.629 + * @param tree The method definition.
1.630 + * @param env The environment current outside of the method definition.
1.631 + */
1.632 + Env<AttrContext> methodEnv(JCMethodDecl tree, Env<AttrContext> env) {
1.633 + Env<AttrContext> localEnv =
1.634 + env.dup(tree, env.info.dup(env.info.scope.dupUnshared()));
1.635 + localEnv.enclMethod = tree;
1.636 + localEnv.info.scope.owner = tree.sym;
1.637 + if (tree.sym.type != null) {
1.638 + //when this is called in the enter stage, there's no type to be set
1.639 + localEnv.info.returnResult = attr.new ResultInfo(VAL, tree.sym.type.getReturnType());
1.640 + }
1.641 + if ((tree.mods.flags & STATIC) != 0) localEnv.info.staticLevel++;
1.642 + return localEnv;
1.643 + }
1.644 +
1.645 + public void visitVarDef(JCVariableDecl tree) {
1.646 + Env<AttrContext> localEnv = env;
1.647 + if ((tree.mods.flags & STATIC) != 0 ||
1.648 + (env.info.scope.owner.flags() & INTERFACE) != 0) {
1.649 + localEnv = env.dup(tree, env.info.dup());
1.650 + localEnv.info.staticLevel++;
1.651 + }
1.652 + DiagnosticPosition prevLintPos = deferredLintHandler.setPos(tree.pos());
1.653 + annotate.enterStart();
1.654 + try {
1.655 + try {
1.656 + if (TreeInfo.isEnumInit(tree)) {
1.657 + attr.attribIdentAsEnumType(localEnv, (JCIdent)tree.vartype);
1.658 + } else {
1.659 + attr.attribType(tree.vartype, localEnv);
1.660 + if (TreeInfo.isReceiverParam(tree))
1.661 + checkReceiver(tree, localEnv);
1.662 + }
1.663 + } finally {
1.664 + deferredLintHandler.setPos(prevLintPos);
1.665 + }
1.666 +
1.667 + if ((tree.mods.flags & VARARGS) != 0) {
1.668 + //if we are entering a varargs parameter, we need to
1.669 + //replace its type (a plain array type) with the more
1.670 + //precise VarargsType --- we need to do it this way
1.671 + //because varargs is represented in the tree as a
1.672 + //modifier on the parameter declaration, and not as a
1.673 + //distinct type of array node.
1.674 + ArrayType atype = (ArrayType)tree.vartype.type.unannotatedType();
1.675 + tree.vartype.type = atype.makeVarargs();
1.676 + }
1.677 + Scope enclScope = enter.enterScope(env);
1.678 + VarSymbol v =
1.679 + new VarSymbol(0, tree.name, tree.vartype.type, enclScope.owner);
1.680 + v.flags_field = chk.checkFlags(tree.pos(), tree.mods.flags, v, tree);
1.681 + tree.sym = v;
1.682 + if (tree.init != null) {
1.683 + v.flags_field |= HASINIT;
1.684 + if ((v.flags_field & FINAL) != 0 &&
1.685 + needsLazyConstValue(tree.init)) {
1.686 + Env<AttrContext> initEnv = getInitEnv(tree, env);
1.687 + initEnv.info.enclVar = v;
1.688 + v.setLazyConstValue(initEnv(tree, initEnv), attr, tree);
1.689 + }
1.690 + }
1.691 + if (chk.checkUnique(tree.pos(), v, enclScope)) {
1.692 + chk.checkTransparentVar(tree.pos(), v, enclScope);
1.693 + enclScope.enter(v);
1.694 + }
1.695 + annotateLater(tree.mods.annotations, localEnv, v, tree.pos());
1.696 + typeAnnotate(tree.vartype, env, v, tree.pos());
1.697 + v.pos = tree.pos;
1.698 + } finally {
1.699 + annotate.enterDone();
1.700 + }
1.701 + }
1.702 + // where
1.703 + void checkType(JCTree tree, Type type, String diag) {
1.704 + if (!tree.type.isErroneous() && !types.isSameType(tree.type, type)) {
1.705 + log.error(tree, diag, type, tree.type);
1.706 + }
1.707 + }
1.708 + void checkReceiver(JCVariableDecl tree, Env<AttrContext> localEnv) {
1.709 + attr.attribExpr(tree.nameexpr, localEnv);
1.710 + MethodSymbol m = localEnv.enclMethod.sym;
1.711 + if (m.isConstructor()) {
1.712 + Type outertype = m.owner.owner.type;
1.713 + if (outertype.hasTag(TypeTag.METHOD)) {
1.714 + // we have a local inner class
1.715 + outertype = m.owner.owner.owner.type;
1.716 + }
1.717 + if (outertype.hasTag(TypeTag.CLASS)) {
1.718 + checkType(tree.vartype, outertype, "incorrect.constructor.receiver.type");
1.719 + checkType(tree.nameexpr, outertype, "incorrect.constructor.receiver.name");
1.720 + } else {
1.721 + log.error(tree, "receiver.parameter.not.applicable.constructor.toplevel.class");
1.722 + }
1.723 + } else {
1.724 + checkType(tree.vartype, m.owner.type, "incorrect.receiver.type");
1.725 + checkType(tree.nameexpr, m.owner.type, "incorrect.receiver.name");
1.726 + }
1.727 + }
1.728 +
1.729 + public boolean needsLazyConstValue(JCTree tree) {
1.730 + InitTreeVisitor initTreeVisitor = new InitTreeVisitor();
1.731 + tree.accept(initTreeVisitor);
1.732 + return initTreeVisitor.result;
1.733 + }
1.734 +
1.735 + /** Visitor class for expressions which might be constant expressions.
1.736 + */
1.737 + static class InitTreeVisitor extends JCTree.Visitor {
1.738 +
1.739 + private boolean result = true;
1.740 +
1.741 + @Override
1.742 + public void visitTree(JCTree tree) {}
1.743 +
1.744 + @Override
1.745 + public void visitNewClass(JCNewClass that) {
1.746 + result = false;
1.747 + }
1.748 +
1.749 + @Override
1.750 + public void visitNewArray(JCNewArray that) {
1.751 + result = false;
1.752 + }
1.753 +
1.754 + @Override
1.755 + public void visitLambda(JCLambda that) {
1.756 + result = false;
1.757 + }
1.758 +
1.759 + @Override
1.760 + public void visitReference(JCMemberReference that) {
1.761 + result = false;
1.762 + }
1.763 +
1.764 + @Override
1.765 + public void visitApply(JCMethodInvocation that) {
1.766 + result = false;
1.767 + }
1.768 +
1.769 + @Override
1.770 + public void visitSelect(JCFieldAccess tree) {
1.771 + tree.selected.accept(this);
1.772 + }
1.773 +
1.774 + @Override
1.775 + public void visitConditional(JCConditional tree) {
1.776 + tree.cond.accept(this);
1.777 + tree.truepart.accept(this);
1.778 + tree.falsepart.accept(this);
1.779 + }
1.780 +
1.781 + @Override
1.782 + public void visitParens(JCParens tree) {
1.783 + tree.expr.accept(this);
1.784 + }
1.785 +
1.786 + @Override
1.787 + public void visitTypeCast(JCTypeCast tree) {
1.788 + tree.expr.accept(this);
1.789 + }
1.790 + }
1.791 +
1.792 + /** Create a fresh environment for a variable's initializer.
1.793 + * If the variable is a field, the owner of the environment's scope
1.794 + * is be the variable itself, otherwise the owner is the method
1.795 + * enclosing the variable definition.
1.796 + *
1.797 + * @param tree The variable definition.
1.798 + * @param env The environment current outside of the variable definition.
1.799 + */
1.800 + Env<AttrContext> initEnv(JCVariableDecl tree, Env<AttrContext> env) {
1.801 + Env<AttrContext> localEnv = env.dupto(new AttrContextEnv(tree, env.info.dup()));
1.802 + if (tree.sym.owner.kind == TYP) {
1.803 + localEnv.info.scope = env.info.scope.dupUnshared();
1.804 + localEnv.info.scope.owner = tree.sym;
1.805 + }
1.806 + if ((tree.mods.flags & STATIC) != 0 ||
1.807 + ((env.enclClass.sym.flags() & INTERFACE) != 0 && env.enclMethod == null))
1.808 + localEnv.info.staticLevel++;
1.809 + return localEnv;
1.810 + }
1.811 +
1.812 + /** Default member enter visitor method: do nothing
1.813 + */
1.814 + public void visitTree(JCTree tree) {
1.815 + }
1.816 +
1.817 + public void visitErroneous(JCErroneous tree) {
1.818 + if (tree.errs != null)
1.819 + memberEnter(tree.errs, env);
1.820 + }
1.821 +
1.822 + public Env<AttrContext> getMethodEnv(JCMethodDecl tree, Env<AttrContext> env) {
1.823 + Env<AttrContext> mEnv = methodEnv(tree, env);
1.824 + mEnv.info.lint = mEnv.info.lint.augment(tree.sym);
1.825 + for (List<JCTypeParameter> l = tree.typarams; l.nonEmpty(); l = l.tail)
1.826 + mEnv.info.scope.enterIfAbsent(l.head.type.tsym);
1.827 + for (List<JCVariableDecl> l = tree.params; l.nonEmpty(); l = l.tail)
1.828 + mEnv.info.scope.enterIfAbsent(l.head.sym);
1.829 + return mEnv;
1.830 + }
1.831 +
1.832 + public Env<AttrContext> getInitEnv(JCVariableDecl tree, Env<AttrContext> env) {
1.833 + Env<AttrContext> iEnv = initEnv(tree, env);
1.834 + return iEnv;
1.835 + }
1.836 +
1.837 +/* ********************************************************************
1.838 + * Type completion
1.839 + *********************************************************************/
1.840 +
1.841 + Type attribImportType(JCTree tree, Env<AttrContext> env) {
1.842 + Assert.check(completionEnabled);
1.843 + try {
1.844 + // To prevent deep recursion, suppress completion of some
1.845 + // types.
1.846 + completionEnabled = false;
1.847 + return attr.attribType(tree, env);
1.848 + } finally {
1.849 + completionEnabled = true;
1.850 + }
1.851 + }
1.852 +
1.853 +/* ********************************************************************
1.854 + * Annotation processing
1.855 + *********************************************************************/
1.856 +
1.857 + /** Queue annotations for later processing. */
1.858 + void annotateLater(final List<JCAnnotation> annotations,
1.859 + final Env<AttrContext> localEnv,
1.860 + final Symbol s,
1.861 + final DiagnosticPosition deferPos) {
1.862 + if (annotations.isEmpty()) {
1.863 + return;
1.864 + }
1.865 + if (s.kind != PCK) {
1.866 + s.resetAnnotations(); // mark Annotations as incomplete for now
1.867 + }
1.868 + annotate.normal(new Annotate.Worker() {
1.869 + @Override
1.870 + public String toString() {
1.871 + return "annotate " + annotations + " onto " + s + " in " + s.owner;
1.872 + }
1.873 +
1.874 + @Override
1.875 + public void run() {
1.876 + Assert.check(s.kind == PCK || s.annotationsPendingCompletion());
1.877 + JavaFileObject prev = log.useSource(localEnv.toplevel.sourcefile);
1.878 + DiagnosticPosition prevLintPos =
1.879 + deferPos != null
1.880 + ? deferredLintHandler.setPos(deferPos)
1.881 + : deferredLintHandler.immediate();
1.882 + Lint prevLint = deferPos != null ? null : chk.setLint(lint);
1.883 + try {
1.884 + if (s.hasAnnotations() &&
1.885 + annotations.nonEmpty())
1.886 + log.error(annotations.head.pos,
1.887 + "already.annotated",
1.888 + kindName(s), s);
1.889 + actualEnterAnnotations(annotations, localEnv, s);
1.890 + } finally {
1.891 + if (prevLint != null)
1.892 + chk.setLint(prevLint);
1.893 + deferredLintHandler.setPos(prevLintPos);
1.894 + log.useSource(prev);
1.895 + }
1.896 + }
1.897 + });
1.898 +
1.899 + annotate.validate(new Annotate.Worker() { //validate annotations
1.900 + @Override
1.901 + public void run() {
1.902 + JavaFileObject prev = log.useSource(localEnv.toplevel.sourcefile);
1.903 + try {
1.904 + chk.validateAnnotations(annotations, s);
1.905 + } finally {
1.906 + log.useSource(prev);
1.907 + }
1.908 + }
1.909 + });
1.910 + }
1.911 +
1.912 + /**
1.913 + * Check if a list of annotations contains a reference to
1.914 + * java.lang.Deprecated.
1.915 + **/
1.916 + private boolean hasDeprecatedAnnotation(List<JCAnnotation> annotations) {
1.917 + for (List<JCAnnotation> al = annotations; !al.isEmpty(); al = al.tail) {
1.918 + JCAnnotation a = al.head;
1.919 + if (a.annotationType.type == syms.deprecatedType && a.args.isEmpty())
1.920 + return true;
1.921 + }
1.922 + return false;
1.923 + }
1.924 +
1.925 + /** Enter a set of annotations. */
1.926 + private void actualEnterAnnotations(List<JCAnnotation> annotations,
1.927 + Env<AttrContext> env,
1.928 + Symbol s) {
1.929 + Map<TypeSymbol, ListBuffer<Attribute.Compound>> annotated =
1.930 + new LinkedHashMap<TypeSymbol, ListBuffer<Attribute.Compound>>();
1.931 + Map<Attribute.Compound, DiagnosticPosition> pos =
1.932 + new HashMap<Attribute.Compound, DiagnosticPosition>();
1.933 +
1.934 + for (List<JCAnnotation> al = annotations; !al.isEmpty(); al = al.tail) {
1.935 + JCAnnotation a = al.head;
1.936 + Attribute.Compound c = annotate.enterAnnotation(a,
1.937 + syms.annotationType,
1.938 + env);
1.939 + if (c == null) {
1.940 + continue;
1.941 + }
1.942 +
1.943 + if (annotated.containsKey(a.type.tsym)) {
1.944 + if (!allowRepeatedAnnos) {
1.945 + log.error(a.pos(), "repeatable.annotations.not.supported.in.source");
1.946 + allowRepeatedAnnos = true;
1.947 + }
1.948 + ListBuffer<Attribute.Compound> l = annotated.get(a.type.tsym);
1.949 + l = l.append(c);
1.950 + annotated.put(a.type.tsym, l);
1.951 + pos.put(c, a.pos());
1.952 + } else {
1.953 + annotated.put(a.type.tsym, ListBuffer.of(c));
1.954 + pos.put(c, a.pos());
1.955 + }
1.956 +
1.957 + // Note: @Deprecated has no effect on local variables and parameters
1.958 + if (!c.type.isErroneous()
1.959 + && s.owner.kind != MTH
1.960 + && types.isSameType(c.type, syms.deprecatedType)) {
1.961 + s.flags_field |= Flags.DEPRECATED;
1.962 + }
1.963 + }
1.964 +
1.965 + s.setDeclarationAttributesWithCompletion(
1.966 + annotate.new AnnotateRepeatedContext<Attribute.Compound>(env, annotated, pos, log, false));
1.967 + }
1.968 +
1.969 + /** Queue processing of an attribute default value. */
1.970 + void annotateDefaultValueLater(final JCExpression defaultValue,
1.971 + final Env<AttrContext> localEnv,
1.972 + final MethodSymbol m) {
1.973 + annotate.normal(new Annotate.Worker() {
1.974 + @Override
1.975 + public String toString() {
1.976 + return "annotate " + m.owner + "." +
1.977 + m + " default " + defaultValue;
1.978 + }
1.979 +
1.980 + @Override
1.981 + public void run() {
1.982 + JavaFileObject prev = log.useSource(localEnv.toplevel.sourcefile);
1.983 + try {
1.984 + enterDefaultValue(defaultValue, localEnv, m);
1.985 + } finally {
1.986 + log.useSource(prev);
1.987 + }
1.988 + }
1.989 + });
1.990 + annotate.validate(new Annotate.Worker() { //validate annotations
1.991 + @Override
1.992 + public void run() {
1.993 + JavaFileObject prev = log.useSource(localEnv.toplevel.sourcefile);
1.994 + try {
1.995 + // if default value is an annotation, check it is a well-formed
1.996 + // annotation value (e.g. no duplicate values, no missing values, etc.)
1.997 + chk.validateAnnotationTree(defaultValue);
1.998 + } finally {
1.999 + log.useSource(prev);
1.1000 + }
1.1001 + }
1.1002 + });
1.1003 + }
1.1004 +
1.1005 + /** Enter a default value for an attribute method. */
1.1006 + private void enterDefaultValue(final JCExpression defaultValue,
1.1007 + final Env<AttrContext> localEnv,
1.1008 + final MethodSymbol m) {
1.1009 + m.defaultValue = annotate.enterAttributeValue(m.type.getReturnType(),
1.1010 + defaultValue,
1.1011 + localEnv);
1.1012 + }
1.1013 +
1.1014 +/* ********************************************************************
1.1015 + * Source completer
1.1016 + *********************************************************************/
1.1017 +
1.1018 + /** Complete entering a class.
1.1019 + * @param sym The symbol of the class to be completed.
1.1020 + */
1.1021 + public void complete(Symbol sym) throws CompletionFailure {
1.1022 + // Suppress some (recursive) MemberEnter invocations
1.1023 + if (!completionEnabled) {
1.1024 + // Re-install same completer for next time around and return.
1.1025 + Assert.check((sym.flags() & Flags.COMPOUND) == 0);
1.1026 + sym.completer = this;
1.1027 + return;
1.1028 + }
1.1029 +
1.1030 + ClassSymbol c = (ClassSymbol)sym;
1.1031 + ClassType ct = (ClassType)c.type;
1.1032 + Env<AttrContext> env = typeEnvs.get(c);
1.1033 + JCClassDecl tree = (JCClassDecl)env.tree;
1.1034 + boolean wasFirst = isFirst;
1.1035 + isFirst = false;
1.1036 +
1.1037 + JavaFileObject prev = log.useSource(env.toplevel.sourcefile);
1.1038 + DiagnosticPosition prevLintPos = deferredLintHandler.setPos(tree.pos());
1.1039 + try {
1.1040 + // Save class environment for later member enter (2) processing.
1.1041 + halfcompleted.append(env);
1.1042 +
1.1043 + // Mark class as not yet attributed.
1.1044 + c.flags_field |= UNATTRIBUTED;
1.1045 +
1.1046 + // If this is a toplevel-class, make sure any preceding import
1.1047 + // clauses have been seen.
1.1048 + if (c.owner.kind == PCK) {
1.1049 + memberEnter(env.toplevel, env.enclosing(TOPLEVEL));
1.1050 + todo.append(env);
1.1051 + }
1.1052 +
1.1053 + if (c.owner.kind == TYP)
1.1054 + c.owner.complete();
1.1055 +
1.1056 + // create an environment for evaluating the base clauses
1.1057 + Env<AttrContext> baseEnv = baseEnv(tree, env);
1.1058 +
1.1059 + if (tree.extending != null)
1.1060 + typeAnnotate(tree.extending, baseEnv, sym, tree.pos());
1.1061 + for (JCExpression impl : tree.implementing)
1.1062 + typeAnnotate(impl, baseEnv, sym, tree.pos());
1.1063 + annotate.flush();
1.1064 +
1.1065 + // Determine supertype.
1.1066 + Type supertype =
1.1067 + (tree.extending != null)
1.1068 + ? attr.attribBase(tree.extending, baseEnv, true, false, true)
1.1069 + : ((tree.mods.flags & Flags.ENUM) != 0)
1.1070 + ? attr.attribBase(enumBase(tree.pos, c), baseEnv,
1.1071 + true, false, false)
1.1072 + : (c.fullname == names.java_lang_Object)
1.1073 + ? Type.noType
1.1074 + : syms.objectType;
1.1075 + ct.supertype_field = modelMissingTypes(supertype, tree.extending, false);
1.1076 +
1.1077 + // Determine interfaces.
1.1078 + ListBuffer<Type> interfaces = new ListBuffer<Type>();
1.1079 + ListBuffer<Type> all_interfaces = null; // lazy init
1.1080 + Set<Type> interfaceSet = new HashSet<Type>();
1.1081 + List<JCExpression> interfaceTrees = tree.implementing;
1.1082 + for (JCExpression iface : interfaceTrees) {
1.1083 + Type i = attr.attribBase(iface, baseEnv, false, true, true);
1.1084 + if (i.hasTag(CLASS)) {
1.1085 + interfaces.append(i);
1.1086 + if (all_interfaces != null) all_interfaces.append(i);
1.1087 + chk.checkNotRepeated(iface.pos(), types.erasure(i), interfaceSet);
1.1088 + } else {
1.1089 + if (all_interfaces == null)
1.1090 + all_interfaces = new ListBuffer<Type>().appendList(interfaces);
1.1091 + all_interfaces.append(modelMissingTypes(i, iface, true));
1.1092 + }
1.1093 + }
1.1094 + if ((c.flags_field & ANNOTATION) != 0) {
1.1095 + ct.interfaces_field = List.of(syms.annotationType);
1.1096 + ct.all_interfaces_field = ct.interfaces_field;
1.1097 + } else {
1.1098 + ct.interfaces_field = interfaces.toList();
1.1099 + ct.all_interfaces_field = (all_interfaces == null)
1.1100 + ? ct.interfaces_field : all_interfaces.toList();
1.1101 + }
1.1102 +
1.1103 + if (c.fullname == names.java_lang_Object) {
1.1104 + if (tree.extending != null) {
1.1105 + chk.checkNonCyclic(tree.extending.pos(),
1.1106 + supertype);
1.1107 + ct.supertype_field = Type.noType;
1.1108 + }
1.1109 + else if (tree.implementing.nonEmpty()) {
1.1110 + chk.checkNonCyclic(tree.implementing.head.pos(),
1.1111 + ct.interfaces_field.head);
1.1112 + ct.interfaces_field = List.nil();
1.1113 + }
1.1114 + }
1.1115 +
1.1116 + // Annotations.
1.1117 + // In general, we cannot fully process annotations yet, but we
1.1118 + // can attribute the annotation types and then check to see if the
1.1119 + // @Deprecated annotation is present.
1.1120 + attr.attribAnnotationTypes(tree.mods.annotations, baseEnv);
1.1121 + if (hasDeprecatedAnnotation(tree.mods.annotations))
1.1122 + c.flags_field |= DEPRECATED;
1.1123 + annotateLater(tree.mods.annotations, baseEnv, c, tree.pos());
1.1124 + // class type parameters use baseEnv but everything uses env
1.1125 +
1.1126 + chk.checkNonCyclicDecl(tree);
1.1127 +
1.1128 + attr.attribTypeVariables(tree.typarams, baseEnv);
1.1129 + // Do this here, where we have the symbol.
1.1130 + for (JCTypeParameter tp : tree.typarams)
1.1131 + typeAnnotate(tp, baseEnv, sym, tree.pos());
1.1132 +
1.1133 + // Add default constructor if needed.
1.1134 + if ((c.flags() & INTERFACE) == 0 &&
1.1135 + !TreeInfo.hasConstructors(tree.defs)) {
1.1136 + List<Type> argtypes = List.nil();
1.1137 + List<Type> typarams = List.nil();
1.1138 + List<Type> thrown = List.nil();
1.1139 + long ctorFlags = 0;
1.1140 + boolean based = false;
1.1141 + boolean addConstructor = true;
1.1142 + JCNewClass nc = null;
1.1143 + if (c.name.isEmpty()) {
1.1144 + nc = (JCNewClass)env.next.tree;
1.1145 + if (nc.constructor != null) {
1.1146 + addConstructor = nc.constructor.kind != ERR;
1.1147 + Type superConstrType = types.memberType(c.type,
1.1148 + nc.constructor);
1.1149 + argtypes = superConstrType.getParameterTypes();
1.1150 + typarams = superConstrType.getTypeArguments();
1.1151 + ctorFlags = nc.constructor.flags() & VARARGS;
1.1152 + if (nc.encl != null) {
1.1153 + argtypes = argtypes.prepend(nc.encl.type);
1.1154 + based = true;
1.1155 + }
1.1156 + thrown = superConstrType.getThrownTypes();
1.1157 + }
1.1158 + }
1.1159 + if (addConstructor) {
1.1160 + MethodSymbol basedConstructor = nc != null ?
1.1161 + (MethodSymbol)nc.constructor : null;
1.1162 + JCTree constrDef = DefaultConstructor(make.at(tree.pos), c,
1.1163 + basedConstructor,
1.1164 + typarams, argtypes, thrown,
1.1165 + ctorFlags, based);
1.1166 + tree.defs = tree.defs.prepend(constrDef);
1.1167 + }
1.1168 + }
1.1169 +
1.1170 + // enter symbols for 'this' into current scope.
1.1171 + VarSymbol thisSym =
1.1172 + new VarSymbol(FINAL | HASINIT, names._this, c.type, c);
1.1173 + thisSym.pos = Position.FIRSTPOS;
1.1174 + env.info.scope.enter(thisSym);
1.1175 + // if this is a class, enter symbol for 'super' into current scope.
1.1176 + if ((c.flags_field & INTERFACE) == 0 &&
1.1177 + ct.supertype_field.hasTag(CLASS)) {
1.1178 + VarSymbol superSym =
1.1179 + new VarSymbol(FINAL | HASINIT, names._super,
1.1180 + ct.supertype_field, c);
1.1181 + superSym.pos = Position.FIRSTPOS;
1.1182 + env.info.scope.enter(superSym);
1.1183 + }
1.1184 +
1.1185 + // check that no package exists with same fully qualified name,
1.1186 + // but admit classes in the unnamed package which have the same
1.1187 + // name as a top-level package.
1.1188 + if (checkClash &&
1.1189 + c.owner.kind == PCK && c.owner != syms.unnamedPackage &&
1.1190 + reader.packageExists(c.fullname)) {
1.1191 + log.error(tree.pos, "clash.with.pkg.of.same.name", Kinds.kindName(sym), c);
1.1192 + }
1.1193 + if (c.owner.kind == PCK && (c.flags_field & PUBLIC) == 0 &&
1.1194 + !env.toplevel.sourcefile.isNameCompatible(c.name.toString(),JavaFileObject.Kind.SOURCE)) {
1.1195 + c.flags_field |= AUXILIARY;
1.1196 + }
1.1197 + } catch (CompletionFailure ex) {
1.1198 + chk.completionError(tree.pos(), ex);
1.1199 + } finally {
1.1200 + deferredLintHandler.setPos(prevLintPos);
1.1201 + log.useSource(prev);
1.1202 + }
1.1203 +
1.1204 + // Enter all member fields and methods of a set of half completed
1.1205 + // classes in a second phase.
1.1206 + if (wasFirst) {
1.1207 + try {
1.1208 + while (halfcompleted.nonEmpty()) {
1.1209 + Env<AttrContext> toFinish = halfcompleted.next();
1.1210 + finish(toFinish);
1.1211 + if (allowTypeAnnos) {
1.1212 + typeAnnotations.organizeTypeAnnotationsSignatures(toFinish, (JCClassDecl)toFinish.tree);
1.1213 + typeAnnotations.validateTypeAnnotationsSignatures(toFinish, (JCClassDecl)toFinish.tree);
1.1214 + }
1.1215 + }
1.1216 + } finally {
1.1217 + isFirst = true;
1.1218 + }
1.1219 + }
1.1220 + }
1.1221 +
1.1222 + /*
1.1223 + * If the symbol is non-null, attach the type annotation to it.
1.1224 + */
1.1225 + private void actualEnterTypeAnnotations(final List<JCAnnotation> annotations,
1.1226 + final Env<AttrContext> env,
1.1227 + final Symbol s) {
1.1228 + Map<TypeSymbol, ListBuffer<Attribute.TypeCompound>> annotated =
1.1229 + new LinkedHashMap<TypeSymbol, ListBuffer<Attribute.TypeCompound>>();
1.1230 + Map<Attribute.TypeCompound, DiagnosticPosition> pos =
1.1231 + new HashMap<Attribute.TypeCompound, DiagnosticPosition>();
1.1232 +
1.1233 + for (List<JCAnnotation> al = annotations; !al.isEmpty(); al = al.tail) {
1.1234 + JCAnnotation a = al.head;
1.1235 + Attribute.TypeCompound tc = annotate.enterTypeAnnotation(a,
1.1236 + syms.annotationType,
1.1237 + env);
1.1238 + if (tc == null) {
1.1239 + continue;
1.1240 + }
1.1241 +
1.1242 + if (annotated.containsKey(a.type.tsym)) {
1.1243 + if (source.allowRepeatedAnnotations()) {
1.1244 + ListBuffer<Attribute.TypeCompound> l = annotated.get(a.type.tsym);
1.1245 + l = l.append(tc);
1.1246 + annotated.put(a.type.tsym, l);
1.1247 + pos.put(tc, a.pos());
1.1248 + } else {
1.1249 + log.error(a.pos(), "repeatable.annotations.not.supported.in.source");
1.1250 + }
1.1251 + } else {
1.1252 + annotated.put(a.type.tsym, ListBuffer.of(tc));
1.1253 + pos.put(tc, a.pos());
1.1254 + }
1.1255 + }
1.1256 +
1.1257 + if (s != null) {
1.1258 + s.appendTypeAttributesWithCompletion(
1.1259 + annotate.new AnnotateRepeatedContext<Attribute.TypeCompound>(env, annotated, pos, log, true));
1.1260 + }
1.1261 + }
1.1262 +
1.1263 + public void typeAnnotate(final JCTree tree, final Env<AttrContext> env, final Symbol sym, DiagnosticPosition deferPos) {
1.1264 + if (allowTypeAnnos) {
1.1265 + tree.accept(new TypeAnnotate(env, sym, deferPos));
1.1266 + }
1.1267 + }
1.1268 +
1.1269 + /**
1.1270 + * We need to use a TreeScanner, because it is not enough to visit the top-level
1.1271 + * annotations. We also need to visit type arguments, etc.
1.1272 + */
1.1273 + private class TypeAnnotate extends TreeScanner {
1.1274 + private Env<AttrContext> env;
1.1275 + private Symbol sym;
1.1276 + private DiagnosticPosition deferPos;
1.1277 +
1.1278 + public TypeAnnotate(final Env<AttrContext> env, final Symbol sym, DiagnosticPosition deferPos) {
1.1279 + this.env = env;
1.1280 + this.sym = sym;
1.1281 + this.deferPos = deferPos;
1.1282 + }
1.1283 +
1.1284 + void annotateTypeLater(final List<JCAnnotation> annotations) {
1.1285 + if (annotations.isEmpty()) {
1.1286 + return;
1.1287 + }
1.1288 +
1.1289 + final DiagnosticPosition deferPos = this.deferPos;
1.1290 +
1.1291 + annotate.normal(new Annotate.Worker() {
1.1292 + @Override
1.1293 + public String toString() {
1.1294 + return "type annotate " + annotations + " onto " + sym + " in " + sym.owner;
1.1295 + }
1.1296 + @Override
1.1297 + public void run() {
1.1298 + JavaFileObject prev = log.useSource(env.toplevel.sourcefile);
1.1299 + DiagnosticPosition prevLintPos = null;
1.1300 +
1.1301 + if (deferPos != null) {
1.1302 + prevLintPos = deferredLintHandler.setPos(deferPos);
1.1303 + }
1.1304 + try {
1.1305 + actualEnterTypeAnnotations(annotations, env, sym);
1.1306 + } finally {
1.1307 + if (prevLintPos != null)
1.1308 + deferredLintHandler.setPos(prevLintPos);
1.1309 + log.useSource(prev);
1.1310 + }
1.1311 + }
1.1312 + });
1.1313 + }
1.1314 +
1.1315 + @Override
1.1316 + public void visitAnnotatedType(final JCAnnotatedType tree) {
1.1317 + annotateTypeLater(tree.annotations);
1.1318 + super.visitAnnotatedType(tree);
1.1319 + }
1.1320 +
1.1321 + @Override
1.1322 + public void visitTypeParameter(final JCTypeParameter tree) {
1.1323 + annotateTypeLater(tree.annotations);
1.1324 + super.visitTypeParameter(tree);
1.1325 + }
1.1326 +
1.1327 + @Override
1.1328 + public void visitNewArray(final JCNewArray tree) {
1.1329 + annotateTypeLater(tree.annotations);
1.1330 + for (List<JCAnnotation> dimAnnos : tree.dimAnnotations)
1.1331 + annotateTypeLater(dimAnnos);
1.1332 + super.visitNewArray(tree);
1.1333 + }
1.1334 +
1.1335 + @Override
1.1336 + public void visitMethodDef(final JCMethodDecl tree) {
1.1337 + scan(tree.mods);
1.1338 + scan(tree.restype);
1.1339 + scan(tree.typarams);
1.1340 + scan(tree.recvparam);
1.1341 + scan(tree.params);
1.1342 + scan(tree.thrown);
1.1343 + scan(tree.defaultValue);
1.1344 + // Do not annotate the body, just the signature.
1.1345 + // scan(tree.body);
1.1346 + }
1.1347 +
1.1348 + @Override
1.1349 + public void visitVarDef(final JCVariableDecl tree) {
1.1350 + DiagnosticPosition prevPos = deferPos;
1.1351 + deferPos = tree.pos();
1.1352 + try {
1.1353 + if (sym != null && sym.kind == Kinds.VAR) {
1.1354 + // Don't visit a parameter once when the sym is the method
1.1355 + // and once when the sym is the parameter.
1.1356 + scan(tree.mods);
1.1357 + scan(tree.vartype);
1.1358 + }
1.1359 + scan(tree.init);
1.1360 + } finally {
1.1361 + deferPos = prevPos;
1.1362 + }
1.1363 + }
1.1364 +
1.1365 + @Override
1.1366 + public void visitClassDef(JCClassDecl tree) {
1.1367 + // We can only hit a classdef if it is declared within
1.1368 + // a method. Ignore it - the class will be visited
1.1369 + // separately later.
1.1370 + }
1.1371 +
1.1372 + @Override
1.1373 + public void visitNewClass(JCNewClass tree) {
1.1374 + if (tree.def == null) {
1.1375 + // For an anonymous class instantiation the class
1.1376 + // will be visited separately.
1.1377 + super.visitNewClass(tree);
1.1378 + }
1.1379 + }
1.1380 + }
1.1381 +
1.1382 +
1.1383 + private Env<AttrContext> baseEnv(JCClassDecl tree, Env<AttrContext> env) {
1.1384 + Scope baseScope = new Scope(tree.sym);
1.1385 + //import already entered local classes into base scope
1.1386 + for (Scope.Entry e = env.outer.info.scope.elems ; e != null ; e = e.sibling) {
1.1387 + if (e.sym.isLocal()) {
1.1388 + baseScope.enter(e.sym);
1.1389 + }
1.1390 + }
1.1391 + //import current type-parameters into base scope
1.1392 + if (tree.typarams != null)
1.1393 + for (List<JCTypeParameter> typarams = tree.typarams;
1.1394 + typarams.nonEmpty();
1.1395 + typarams = typarams.tail)
1.1396 + baseScope.enter(typarams.head.type.tsym);
1.1397 + Env<AttrContext> outer = env.outer; // the base clause can't see members of this class
1.1398 + Env<AttrContext> localEnv = outer.dup(tree, outer.info.dup(baseScope));
1.1399 + localEnv.baseClause = true;
1.1400 + localEnv.outer = outer;
1.1401 + localEnv.info.isSelfCall = false;
1.1402 + return localEnv;
1.1403 + }
1.1404 +
1.1405 + /** Enter member fields and methods of a class
1.1406 + * @param env the environment current for the class block.
1.1407 + */
1.1408 + private void finish(Env<AttrContext> env) {
1.1409 + JavaFileObject prev = log.useSource(env.toplevel.sourcefile);
1.1410 + try {
1.1411 + JCClassDecl tree = (JCClassDecl)env.tree;
1.1412 + finishClass(tree, env);
1.1413 + } finally {
1.1414 + log.useSource(prev);
1.1415 + }
1.1416 + }
1.1417 +
1.1418 + /** Generate a base clause for an enum type.
1.1419 + * @param pos The position for trees and diagnostics, if any
1.1420 + * @param c The class symbol of the enum
1.1421 + */
1.1422 + private JCExpression enumBase(int pos, ClassSymbol c) {
1.1423 + JCExpression result = make.at(pos).
1.1424 + TypeApply(make.QualIdent(syms.enumSym),
1.1425 + List.<JCExpression>of(make.Type(c.type)));
1.1426 + return result;
1.1427 + }
1.1428 +
1.1429 + Type modelMissingTypes(Type t, final JCExpression tree, final boolean interfaceExpected) {
1.1430 + if (!t.hasTag(ERROR))
1.1431 + return t;
1.1432 +
1.1433 + return new ErrorType(t.getOriginalType(), t.tsym) {
1.1434 + private Type modelType;
1.1435 +
1.1436 + @Override
1.1437 + public Type getModelType() {
1.1438 + if (modelType == null)
1.1439 + modelType = new Synthesizer(getOriginalType(), interfaceExpected).visit(tree);
1.1440 + return modelType;
1.1441 + }
1.1442 + };
1.1443 + }
1.1444 + // where
1.1445 + private class Synthesizer extends JCTree.Visitor {
1.1446 + Type originalType;
1.1447 + boolean interfaceExpected;
1.1448 + List<ClassSymbol> synthesizedSymbols = List.nil();
1.1449 + Type result;
1.1450 +
1.1451 + Synthesizer(Type originalType, boolean interfaceExpected) {
1.1452 + this.originalType = originalType;
1.1453 + this.interfaceExpected = interfaceExpected;
1.1454 + }
1.1455 +
1.1456 + Type visit(JCTree tree) {
1.1457 + tree.accept(this);
1.1458 + return result;
1.1459 + }
1.1460 +
1.1461 + List<Type> visit(List<? extends JCTree> trees) {
1.1462 + ListBuffer<Type> lb = new ListBuffer<Type>();
1.1463 + for (JCTree t: trees)
1.1464 + lb.append(visit(t));
1.1465 + return lb.toList();
1.1466 + }
1.1467 +
1.1468 + @Override
1.1469 + public void visitTree(JCTree tree) {
1.1470 + result = syms.errType;
1.1471 + }
1.1472 +
1.1473 + @Override
1.1474 + public void visitIdent(JCIdent tree) {
1.1475 + if (!tree.type.hasTag(ERROR)) {
1.1476 + result = tree.type;
1.1477 + } else {
1.1478 + result = synthesizeClass(tree.name, syms.unnamedPackage).type;
1.1479 + }
1.1480 + }
1.1481 +
1.1482 + @Override
1.1483 + public void visitSelect(JCFieldAccess tree) {
1.1484 + if (!tree.type.hasTag(ERROR)) {
1.1485 + result = tree.type;
1.1486 + } else {
1.1487 + Type selectedType;
1.1488 + boolean prev = interfaceExpected;
1.1489 + try {
1.1490 + interfaceExpected = false;
1.1491 + selectedType = visit(tree.selected);
1.1492 + } finally {
1.1493 + interfaceExpected = prev;
1.1494 + }
1.1495 + ClassSymbol c = synthesizeClass(tree.name, selectedType.tsym);
1.1496 + result = c.type;
1.1497 + }
1.1498 + }
1.1499 +
1.1500 + @Override
1.1501 + public void visitTypeApply(JCTypeApply tree) {
1.1502 + if (!tree.type.hasTag(ERROR)) {
1.1503 + result = tree.type;
1.1504 + } else {
1.1505 + ClassType clazzType = (ClassType) visit(tree.clazz);
1.1506 + if (synthesizedSymbols.contains(clazzType.tsym))
1.1507 + synthesizeTyparams((ClassSymbol) clazzType.tsym, tree.arguments.size());
1.1508 + final List<Type> actuals = visit(tree.arguments);
1.1509 + result = new ErrorType(tree.type, clazzType.tsym) {
1.1510 + @Override
1.1511 + public List<Type> getTypeArguments() {
1.1512 + return actuals;
1.1513 + }
1.1514 + };
1.1515 + }
1.1516 + }
1.1517 +
1.1518 + ClassSymbol synthesizeClass(Name name, Symbol owner) {
1.1519 + int flags = interfaceExpected ? INTERFACE : 0;
1.1520 + ClassSymbol c = new ClassSymbol(flags, name, owner);
1.1521 + c.members_field = new Scope.ErrorScope(c);
1.1522 + c.type = new ErrorType(originalType, c) {
1.1523 + @Override
1.1524 + public List<Type> getTypeArguments() {
1.1525 + return typarams_field;
1.1526 + }
1.1527 + };
1.1528 + synthesizedSymbols = synthesizedSymbols.prepend(c);
1.1529 + return c;
1.1530 + }
1.1531 +
1.1532 + void synthesizeTyparams(ClassSymbol sym, int n) {
1.1533 + ClassType ct = (ClassType) sym.type;
1.1534 + Assert.check(ct.typarams_field.isEmpty());
1.1535 + if (n == 1) {
1.1536 + TypeVar v = new TypeVar(names.fromString("T"), sym, syms.botType);
1.1537 + ct.typarams_field = ct.typarams_field.prepend(v);
1.1538 + } else {
1.1539 + for (int i = n; i > 0; i--) {
1.1540 + TypeVar v = new TypeVar(names.fromString("T" + i), sym, syms.botType);
1.1541 + ct.typarams_field = ct.typarams_field.prepend(v);
1.1542 + }
1.1543 + }
1.1544 + }
1.1545 + }
1.1546 +
1.1547 +
1.1548 +/* ***************************************************************************
1.1549 + * tree building
1.1550 + ****************************************************************************/
1.1551 +
1.1552 + /** Generate default constructor for given class. For classes different
1.1553 + * from java.lang.Object, this is:
1.1554 + *
1.1555 + * c(argtype_0 x_0, ..., argtype_n x_n) throws thrown {
1.1556 + * super(x_0, ..., x_n)
1.1557 + * }
1.1558 + *
1.1559 + * or, if based == true:
1.1560 + *
1.1561 + * c(argtype_0 x_0, ..., argtype_n x_n) throws thrown {
1.1562 + * x_0.super(x_1, ..., x_n)
1.1563 + * }
1.1564 + *
1.1565 + * @param make The tree factory.
1.1566 + * @param c The class owning the default constructor.
1.1567 + * @param argtypes The parameter types of the constructor.
1.1568 + * @param thrown The thrown exceptions of the constructor.
1.1569 + * @param based Is first parameter a this$n?
1.1570 + */
1.1571 + JCTree DefaultConstructor(TreeMaker make,
1.1572 + ClassSymbol c,
1.1573 + MethodSymbol baseInit,
1.1574 + List<Type> typarams,
1.1575 + List<Type> argtypes,
1.1576 + List<Type> thrown,
1.1577 + long flags,
1.1578 + boolean based) {
1.1579 + JCTree result;
1.1580 + if ((c.flags() & ENUM) != 0 &&
1.1581 + (types.supertype(c.type).tsym == syms.enumSym)) {
1.1582 + // constructors of true enums are private
1.1583 + flags = (flags & ~AccessFlags) | PRIVATE | GENERATEDCONSTR;
1.1584 + } else
1.1585 + flags |= (c.flags() & AccessFlags) | GENERATEDCONSTR;
1.1586 + if (c.name.isEmpty()) {
1.1587 + flags |= ANONCONSTR;
1.1588 + }
1.1589 + Type mType = new MethodType(argtypes, null, thrown, c);
1.1590 + Type initType = typarams.nonEmpty() ?
1.1591 + new ForAll(typarams, mType) :
1.1592 + mType;
1.1593 + MethodSymbol init = new MethodSymbol(flags, names.init,
1.1594 + initType, c);
1.1595 + init.params = createDefaultConstructorParams(make, baseInit, init,
1.1596 + argtypes, based);
1.1597 + List<JCVariableDecl> params = make.Params(argtypes, init);
1.1598 + List<JCStatement> stats = List.nil();
1.1599 + if (c.type != syms.objectType) {
1.1600 + stats = stats.prepend(SuperCall(make, typarams, params, based));
1.1601 + }
1.1602 + result = make.MethodDef(init, make.Block(0, stats));
1.1603 + return result;
1.1604 + }
1.1605 +
1.1606 + private List<VarSymbol> createDefaultConstructorParams(
1.1607 + TreeMaker make,
1.1608 + MethodSymbol baseInit,
1.1609 + MethodSymbol init,
1.1610 + List<Type> argtypes,
1.1611 + boolean based) {
1.1612 + List<VarSymbol> initParams = null;
1.1613 + List<Type> argTypesList = argtypes;
1.1614 + if (based) {
1.1615 + /* In this case argtypes will have an extra type, compared to baseInit,
1.1616 + * corresponding to the type of the enclosing instance i.e.:
1.1617 + *
1.1618 + * Inner i = outer.new Inner(1){}
1.1619 + *
1.1620 + * in the above example argtypes will be (Outer, int) and baseInit
1.1621 + * will have parameter's types (int). So in this case we have to add
1.1622 + * first the extra type in argtypes and then get the names of the
1.1623 + * parameters from baseInit.
1.1624 + */
1.1625 + initParams = List.nil();
1.1626 + VarSymbol param = new VarSymbol(PARAMETER, make.paramName(0), argtypes.head, init);
1.1627 + initParams = initParams.append(param);
1.1628 + argTypesList = argTypesList.tail;
1.1629 + }
1.1630 + if (baseInit != null && baseInit.params != null &&
1.1631 + baseInit.params.nonEmpty() && argTypesList.nonEmpty()) {
1.1632 + initParams = (initParams == null) ? List.<VarSymbol>nil() : initParams;
1.1633 + List<VarSymbol> baseInitParams = baseInit.params;
1.1634 + while (baseInitParams.nonEmpty() && argTypesList.nonEmpty()) {
1.1635 + VarSymbol param = new VarSymbol(baseInitParams.head.flags() | PARAMETER,
1.1636 + baseInitParams.head.name, argTypesList.head, init);
1.1637 + initParams = initParams.append(param);
1.1638 + baseInitParams = baseInitParams.tail;
1.1639 + argTypesList = argTypesList.tail;
1.1640 + }
1.1641 + }
1.1642 + return initParams;
1.1643 + }
1.1644 +
1.1645 + /** Generate call to superclass constructor. This is:
1.1646 + *
1.1647 + * super(id_0, ..., id_n)
1.1648 + *
1.1649 + * or, if based == true
1.1650 + *
1.1651 + * id_0.super(id_1,...,id_n)
1.1652 + *
1.1653 + * where id_0, ..., id_n are the names of the given parameters.
1.1654 + *
1.1655 + * @param make The tree factory
1.1656 + * @param params The parameters that need to be passed to super
1.1657 + * @param typarams The type parameters that need to be passed to super
1.1658 + * @param based Is first parameter a this$n?
1.1659 + */
1.1660 + JCExpressionStatement SuperCall(TreeMaker make,
1.1661 + List<Type> typarams,
1.1662 + List<JCVariableDecl> params,
1.1663 + boolean based) {
1.1664 + JCExpression meth;
1.1665 + if (based) {
1.1666 + meth = make.Select(make.Ident(params.head), names._super);
1.1667 + params = params.tail;
1.1668 + } else {
1.1669 + meth = make.Ident(names._super);
1.1670 + }
1.1671 + List<JCExpression> typeargs = typarams.nonEmpty() ? make.Types(typarams) : null;
1.1672 + return make.Exec(make.Apply(typeargs, meth, make.Idents(params)));
1.1673 + }
1.1674 +}
