Examples of com.sun.tools.javac.code.Type$ClassType

com.sun.tools.javac.code.Type
An abstract class for mappings from types to types

        if (isSameType(cl1.head, cl2.head))
            return intersect(cl1.tail, cl2.tail).prepend(cl1.head);
        if (cl1.head.tsym == cl2.head.tsym &&
            cl1.head.tag == CLASS && cl2.head.tag == CLASS) {
            if (cl1.head.isParameterized() && cl2.head.isParameterized()) {
                Type merge = merge(cl1.head,cl2.head);
                return intersect(cl1.tail, cl2.tail).prepend(merge);
            }
            if (cl1.head.isRaw() || cl2.head.isRaw())
                return intersect(cl1.tail, cl2.tail).prepend(erasure(cl1.head));
        }

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                    merged.append(act1.head);
                } else if (containsType(act2.head, act1.head)) {
                    merged.append(act2.head);
                } else {
                    TypePair pair = new TypePair(c1, c2);
                    Type m;
                    if (mergeCache.add(pair)) {
                        m = new WildcardType(lub(upperBound(act1.head),
                                                 upperBound(act2.head)),
                                             BoundKind.EXTENDS,
                                             syms.boundClass);
                        mergeCache.remove(pair);
                    } else {
                        m = new WildcardType(syms.objectType,
                                             BoundKind.UNBOUND,
                                             syms.boundClass);
                    }
                    merged.append(m.withTypeVar(typarams.head));
                }
                act1 = act1.tail;
                act2 = act2.tail;
                typarams = typarams.tail;
            }

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     */
    private List<Type> closureMin(List<Type> cl) {
        ListBuffer<Type> classes = lb();
        ListBuffer<Type> interfaces = lb();
        while (!cl.isEmpty()) {
            Type current = cl.head;
            if (current.isInterface())
                interfaces.append(current);
            else
                classes.append(current);
            ListBuffer<Type> candidates = lb();
            for (Type t : cl.tail) {

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            for (Type t : elements) {
                if (t.isPrimitive()) {
                    // if a primitive type is found, then return
                    // arraySuperType unless all the types are the
                    // same
                    Type first = ts.head;
                    for (Type s : ts.tail) {
                        if (!isSameType(first, s)) {
                             // lub(int[], B[]) is Cloneable & Serializable
                            return arraySuperType();
                        }

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        }
    // </editor-fold>


    // <editor-fold defaultstate="collapsed" desc="Greatest lower bound">
    public Type glb(List<Type> ts) {
        Type t1 = ts.head;
        for (Type t2 : ts.tail) {
            if (t1.isErroneous())
                return t1;
            t1 = glb(t1, t2);
        }
        return t1;
    }

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     * type variables in the other, where correspondence is by
     * position in the type parameter list. */
    public boolean resultSubtype(Type t, Type s, Warner warner) {
        List<Type> tvars = t.getTypeArguments();
        List<Type> svars = s.getTypeArguments();
        Type tres = t.getReturnType();
        Type sres = subst(s.getReturnType(), svars, tvars);
        return covariantReturnType(tres, sres, warner);
    }

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    }
    public Type capture(Type t) {
        if (t.tag != CLASS)
            return t;
        if (t.getEnclosingType() != Type.noType) {
            Type capturedEncl = capture(t.getEnclosingType());
            if (capturedEncl != t.getEnclosingType()) {
                Type type1 = memberType(capturedEncl, t.tsym);
                t = subst(type1, t.tsym.type.getTypeArguments(), t.getTypeArguments());
            }
        }
        ClassType cls = (ClassType)t;
        if (cls.isRaw() || !cls.isParameterized())
            return cls;


        ClassType G = (ClassType)cls.asElement().asType();
        List<Type> A = G.getTypeArguments();
        List<Type> T = cls.getTypeArguments();
        List<Type> S = freshTypeVariables(T);


        List<Type> currentA = A;
        List<Type> currentT = T;
        List<Type> currentS = S;
        boolean captured = false;
        while (!currentA.isEmpty() &&
               !currentT.isEmpty() &&
               !currentS.isEmpty()) {
            if (currentS.head != currentT.head) {
                captured = true;
                WildcardType Ti = (WildcardType)currentT.head;
                Type Ui = currentA.head.getUpperBound();
                CapturedType Si = (CapturedType)currentS.head;
                if (Ui == null)
                    Ui = syms.objectType;
                switch (Ti.kind) {
                case UNBOUND:

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    // where
        public List<Type> freshTypeVariables(List<Type> types) {
            ListBuffer<Type> result = lb();
            for (Type t : types) {
                if (t.tag == WILDCARD) {
                    Type bound = ((WildcardType)t).getExtendsBound();
                    if (bound == null)
                        bound = syms.objectType;
                    result.append(new CapturedType(capturedName,
                                                   syms.noSymbol,
                                                   bound,

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    // </editor-fold>


    // <editor-fold defaultstate="collapsed" desc="Internal utility methods">
    private List<Type> upperBounds(List<Type> ss) {
        if (ss.isEmpty()) return ss;
        Type head = upperBound(ss.head);
        List<Type> tail = upperBounds(ss.tail);
        if (head != ss.head || tail != ss.tail)
            return tail.prepend(head);
        else
            return ss;

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            memberEnter(l.head, env);
            argbuf.append(l.head.vartype.type);
        }


        // Attribute result type, if one is given.
        Type restype = res == null ? syms.voidType : attr.attribType(res, env);


        // Attribute thrown exceptions.
        ListBuffer<Type> thrownbuf = new ListBuffer<Type>();
        for (List<JCExpression> l = thrown; l.nonEmpty(); l = l.tail) {
            Type exc = attr.attribType(l.head, env);
            if (exc.tag != TYPEVAR)
                exc = chk.checkClassType(l.head.pos(), exc);
            thrownbuf.append(exc);
        }
        Type mtype = new MethodType(argbuf.toList(),
                                    restype,
                                    thrownbuf.toList(),
                                    syms.methodClass);
        return tvars.isEmpty() ? mtype : new ForAll(tvars, mtype);
    }

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