Java List類代碼示例

import com.sun.tools.javac.util.List; //導入依賴的package包/類
private void replaceExtCall( JCTree.JCMethodInvocation tree, Symbol.MethodSymbol method )
{
  JCExpression methodSelect = tree.getMethodSelect();
  if( methodSelect instanceof JCTree.JCFieldAccess )
  {
    JCTree.JCFieldAccess m = (JCTree.JCFieldAccess)methodSelect;
    boolean isStatic = m.sym.getModifiers().contains( javax.lang.model.element.Modifier.STATIC );
    TreeMaker make = _tp.getTreeMaker();
    JavacElements javacElems = _tp.getElementUtil();
    JCExpression thisArg = m.selected;
    String extensionFqn = method.getEnclosingElement().asType().tsym.toString();
    m.selected = memberAccess( make, javacElems, extensionFqn );
    BasicJavacTask javacTask = ClassSymbols.instance( _sp.getTypeLoader().getModule() ).getJavacTask();
    Symbol.ClassSymbol extensionClassSym = ClassSymbols.instance( _sp.getTypeLoader().getModule() ).getClassSymbol( javacTask, extensionFqn ).getFirst();
    assignTypes( m.selected, extensionClassSym );
    m.sym = method;
    m.type = method.type;

    if( !isStatic )
    {
      ArrayList<JCExpression> newArgs = new ArrayList<>( tree.args );
      newArgs.add( 0, thisArg );
      tree.args = List.from( newArgs );
    }
  }
}
 

import com.sun.tools.javac.util.List; //導入依賴的package包/類
public void printImportsBlock(java.util.List<? extends JCTree> imports, boolean maybeAppendNewLine) {
    boolean hasImports = !imports.isEmpty();
    CodeStyle.ImportGroups importGroups = null;
    if (hasImports) {
        blankLines(Math.max(cs.getBlankLinesBeforeImports(), diffContext.origUnit.getPackageName() != null ? cs.getBlankLinesAfterPackage() : 0));
        if (cs.separateImportGroups())
            importGroups = cs.getImportGroups();
    }
    int lastGroup = -1;
    for (JCTree importStat : imports) {
        if (importGroups != null) {
            Name name = fullName(((JCImport)importStat).qualid);
            int group = name != null ? importGroups.getGroupId(name.toString(), ((JCImport)importStat).staticImport) : -1;
            if (lastGroup >= 0 && lastGroup != group)
                blankline();
            lastGroup = group;
        }
        printStat(importStat);
        newline();
    }
    if (hasImports && maybeAppendNewLine) {
        blankLines(cs.getBlankLinesAfterImports());
    }
}
 

import com.sun.tools.javac.util.List; //導入依賴的package包/類
/** ClassBody     = "{" {ClassBodyDeclaration} "}"
 *  InterfaceBody = "{" {InterfaceBodyDeclaration} "}"
 */
List<JCTree> classOrInterfaceBody(Name className, boolean isInterface) {
    accept(LBRACE);
    if (S.pos() <= errorEndPos) {
        // error recovery
        skip(false, true, false, false);
        if (S.token() == LBRACE)
            S.nextToken();
    }
    ListBuffer<JCTree> defs = new ListBuffer<JCTree>();
    while (S.token() != RBRACE && S.token() != EOF) {
        defs.appendList(classOrInterfaceBodyDeclaration(className, isInterface));
        if (S.pos() <= errorEndPos) {
           // error recovery
           skip(false, true, true, false);
       }
    }
    accept(RBRACE);
    return defs.toList();
}
 

import com.sun.tools.javac.util.List; //導入依賴的package包/類
private void addOverrideBridges(DiagnosticPosition pos,
                                MethodSymbol impl,
                                MethodSymbol member,
                                ClassSymbol c,
                                ListBuffer<JCTree> bridges) {
    Type implErasure = impl.erasure(types);
    long flags = (impl.flags() & AccessFlags) | SYNTHETIC | BRIDGE | OVERRIDE_BRIDGE;
    member = new MethodSymbol(flags, member.name, member.type, c);
    JCMethodDecl md = make.MethodDef(member, null);
    JCExpression receiver = make.Super(types.supertype(c.type).tsym.erasure(types), c);
    Type calltype = erasure(impl.type.getReturnType());
    JCExpression call =
        make.Apply(null,
                   make.Select(receiver, impl).setType(calltype),
                   translateArgs(make.Idents(md.params),
                                 implErasure.getParameterTypes(), null))
        .setType(calltype);
    JCStatement stat = (member.getReturnType().tag == VOID)
        ? make.Exec(call)
        : make.Return(coerce(call, member.erasure(types).getReturnType()));
    md.body = make.Block(0, List.of(stat));
    c.members().enter(member);
    bridges.append(md);
}
 

import com.sun.tools.javac.util.List; //導入依賴的package包/類
/**
 * Instantiate inference variables in legacy mode (JLS 15.12.2.7, 15.12.2.8).
 * During overload resolution, instantiation is done by doing a partial
 * inference process using eq/lower bound instantiation. During check,
 * we also instantiate any remaining vars by repeatedly using eq/upper
 * instantiation, until all variables are solved.
 */
public void solveLegacy(boolean partial, Warner warn, EnumSet<InferenceStep> steps) {
    while (true) {
        List<Type> solvedVars = solveBasic(steps);
        if (restvars().isEmpty() || partial) {
            //all variables have been instantiated - exit
            break;
        } else if (solvedVars.isEmpty()) {
            //some variables could not be instantiated because of cycles in
            //upper bounds - provide a (possibly recursive) default instantiation
            infer.instantiateAsUninferredVars(restvars(), this);
            break;
        } else {
            //some variables have been instantiated - replace newly instantiated
            //variables in remaining upper bounds and continue
            for (Type t : undetvars) {
                UndetVar uv = (UndetVar)t;
                uv.substBounds(solvedVars, asInstTypes(solvedVars), types);
            }
        }
    }
    infer.doIncorporation(this, warn);
}
 

import com.sun.tools.javac.util.List; //導入依賴的package包/類
void notifyChange(List<Type> inferredVars) {
    InferenceException thrownEx = null;
    for (Map.Entry<FreeTypeListener, List<Type>> entry :
            new HashMap<FreeTypeListener, List<Type>>(freeTypeListeners).entrySet()) {
        if (!Type.containsAny(entry.getValue(), inferencevars.diff(inferredVars))) {
            try {
                entry.getKey().typesInferred(this);
                freeTypeListeners.remove(entry.getKey());
            } catch (InferenceException ex) {
                if (thrownEx == null) {
                    thrownEx = ex;
                }
            }
        }
    }
    //inference exception multiplexing - present any inference exception
    //thrown when processing listeners as a single one
    if (thrownEx != null) {
        throw thrownEx;
    }
}
 

import com.sun.tools.javac.util.List; //導入依賴的package包/類
@Override
public Iterable<JavaFileObject> list(Location location,
        String packageName, Set<Kind> kinds, boolean recurse)
        throws IOException {
    // validatePackageName(packageName);
    nullCheck(packageName);
    nullCheck(kinds);

    Iterable<? extends Path> paths = getLocation(location);
    if (paths == null)
        return List.nil();
    ListBuffer<JavaFileObject> results = new ListBuffer<JavaFileObject>();

    for (Path path : paths)
        list(path, packageName, kinds, recurse, results);

    return results.toList();
}
 

import com.sun.tools.javac.util.List; //導入依賴的package包/類
/** Translate method argument list, casting each argument
 *  to its corresponding type in a list of target types.
 *  @param _args            The method argument list.
 *  @param parameters       The list of target types.
 *  @param varargsElement   The erasure of the varargs element type,
 *  or null if translating a non-varargs invocation
 */
<T extends JCTree> List<T> translateArgs(List<T> _args,
                                       List<Type> parameters,
                                       Type varargsElement) {
    if (parameters.isEmpty()) return _args;
    List<T> args = _args;
    while (parameters.tail.nonEmpty()) {
        args.head = translate(args.head, parameters.head);
        args = args.tail;
        parameters = parameters.tail;
    }
    Type parameter = parameters.head;
    Assert.check(varargsElement != null || args.length() == 1);
    if (varargsElement != null) {
        while (args.nonEmpty()) {
            args.head = translate(args.head, varargsElement);
            args = args.tail;
        }
    } else {
        args.head = translate(args.head, parameter);
    }
    return _args;
}
 

import com.sun.tools.javac.util.List; //導入依賴的package包/類
/** Instantiate undetermined type variable to its minimal upper bound.
 *  Throw a NoInstanceException if this not possible.
 */
void maximizeInst(UndetVar that, Warner warn) throws NoInstanceException {
    List<Type> hibounds = Type.filter(that.hibounds, errorFilter);
    if (that.inst == null) {
        if (hibounds.isEmpty())
            that.inst = syms.objectType;
        else if (hibounds.tail.isEmpty())
            that.inst = hibounds.head;
        else
            that.inst = types.glb(hibounds);
    }
    if (that.inst == null ||
        that.inst.isErroneous())
        throw ambiguousNoInstanceException
            .setMessage("no.unique.maximal.instance.exists",
                        that.qtype, hibounds);
}
 

import com.sun.tools.javac.util.List; //導入依賴的package包/類
private static boolean isFirstStatementThisOrSuperCall(@NotNull JCTree.JCBlock body) {
    List<JCTree.JCStatement> statements = body.getStatements();
    if (statements.isEmpty()) {
        return false;
    }
    JCTree.JCStatement expressionCandidate = statements.get(0);
    if (expressionCandidate instanceof ExpressionStatementTree) {
        ExpressionStatementTree expression = (ExpressionStatementTree) expressionCandidate;
        ExpressionTree methodInvocationCandidate = expression.getExpression();
        if (methodInvocationCandidate instanceof MethodInvocationTree) {
            MethodInvocationTree methodInvocation = (MethodInvocationTree) methodInvocationCandidate;
            ExpressionTree methodSelect = methodInvocation.getMethodSelect();
            if (methodSelect != null) {
                String select = methodSelect.toString();
                return "this".equals(select) || "super".equals(select);
            }
        }
    }
    return false;
}
 

import com.sun.tools.javac.util.List; //導入依賴的package包/類
/** SwitchBlockStatementGroups = { SwitchBlockStatementGroup }
 *  SwitchBlockStatementGroup = SwitchLabel BlockStatements
 *  SwitchLabel = CASE ConstantExpression ":" | DEFAULT ":"
 */
List<JCCase> switchBlockStatementGroups() {
    ListBuffer<JCCase> cases = new ListBuffer<JCCase>();
    while (true) {
        int pos = token.pos;
        switch (token.kind) {
        case CASE:
        case DEFAULT:
            cases.append(switchBlockStatementGroup());
            break;
        case RBRACE: case EOF:
            return cases.toList();
        default:
            nextToken(); // to ensure progress
            syntaxError(pos, "expected3",
                CASE, DEFAULT, RBRACE);
        }
    }
}
 

import com.sun.tools.javac.util.List; //導入依賴的package包/類
/**
 * Add abstract methods for all methods defined in one of
 * the interfaces of a given class,
 * provided they are not already implemented in the class.
 *
 * @param c    The class whose interfaces are searched for methods
 *             for which Miranda methods should be added.
 * @param site The class in which a definition may be needed.
 */
void implementInterfaceMethods(ClassSymbol c, ClassSymbol site) {
    for (List<Type> l = types.interfaces(c.type); l.nonEmpty(); l = l.tail) {
        ClassSymbol i = (ClassSymbol) l.head.tsym;
        for (Scope.Entry e = i.members().elems;
             e != null;
             e = e.sibling) {
            if (e.sym.kind == MTH && (e.sym.flags() & STATIC) == 0) {
                MethodSymbol absMeth = (MethodSymbol) e.sym;
                MethodSymbol implMeth = absMeth.binaryImplementation(site, types);
                if (implMeth == null)
                    addAbstractMethod(site, absMeth);
                else if ((implMeth.flags() & IPROXY) != 0)
                    adjustAbstractMethod(site, implMeth, absMeth);
            }
        }
        implementInterfaceMethods(i, site);
    }
}
 

import com.sun.tools.javac.util.List; //導入依賴的package包/類
protected JCMethodInvocation(List<JCExpression> typeargs,
                JCExpression meth,
                List<JCExpression> args)
{
    this.typeargs = (typeargs == null) ? List.nil()
                                       : typeargs;
    this.meth = meth;
    this.args = args;
}
 

import com.sun.tools.javac.util.List; //導入依賴的package包/類
/**
 * Similar to makeOwnerThis but will never pick "this".
 */
JCExpression makeOwnerThisN(DiagnosticPosition pos, Symbol sym, boolean preciseMatch) {
    Symbol c = sym.owner;
    List<VarSymbol> ots = outerThisStack;
    if (ots.isEmpty()) {
        log.error(pos, Errors.NoEnclInstanceOfTypeInScope(c));
        Assert.error();
        return makeNull();
    }
    VarSymbol ot = ots.head;
    JCExpression tree = access(make.at(pos).Ident(ot));
    TypeSymbol otc = ot.type.tsym;
    while (!(preciseMatch ? sym.isMemberOf(otc, types) : otc.isSubClass(sym.owner, types))) {
        do {
            ots = ots.tail;
            if (ots.isEmpty()) {
                log.error(pos, Errors.NoEnclInstanceOfTypeInScope(c));
                Assert.error();
                return tree;
            }
            ot = ots.head;
        } while (ot.owner != otc);
        tree = access(make.at(pos).Select(tree, ot));
        otc = ot.type.tsym;
    }
    return tree;
}
 

import com.sun.tools.javac.util.List; //導入依賴的package包/類
/**
 * Return the string form of a type variable along with any
 * "extends" clause.  Class names are qualified if "full" is true.
 */
static String typeVarToString(DocEnv env, TypeVar v, boolean full) {
    StringBuilder s = new StringBuilder(v.toString());
    List<Type> bounds = getBounds(v, env);
    if (bounds.nonEmpty()) {
        boolean first = true;
        for (Type b : bounds) {
            s.append(first ? " extends " : " & ");
            s.append(TypeMaker.getTypeString(env, b, full));
            first = false;
        }
    }
    return s.toString();
}