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package org.mule.devkit.model.code;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
/**
* Represents X<Y>.
* <p/>
* TODO: consider separating the decl and the use.
*
* @author Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
*/
class NarrowedClass extends TypeReference {
/**
* A generic class with type parameters.
*/
final TypeReference basis;
/**
* Arguments to those parameters.
*/
private final List<TypeReference> args;
NarrowedClass(TypeReference basis, TypeReference arg) {
this(basis, Collections.singletonList(arg));
}
NarrowedClass(TypeReference basis, List<TypeReference> args) {
super(basis.owner());
this.basis = basis;
assert !(basis instanceof NarrowedClass);
this.args = args;
}
@Override
public TypeReference narrow(TypeReference clazz) {
List<TypeReference> newArgs = new ArrayList<TypeReference>(args);
newArgs.add(clazz);
return new NarrowedClass(basis, newArgs);
}
@Override
public TypeReference narrow(TypeReference... clazz) {
List<TypeReference> newArgs = new ArrayList<TypeReference>(args);
newArgs.addAll(Arrays.asList(clazz));
return new NarrowedClass(basis, newArgs);
}
public String name() {
StringBuilder buf = new StringBuilder();
buf.append(basis.name());
buf.append('<');
boolean first = true;
for (TypeReference c : args) {
if (first) {
first = false;
} else {
buf.append(',');
}
buf.append(c.name());
}
buf.append('>');
return buf.toString();
}
public String fullName() {
StringBuilder buf = new StringBuilder();
buf.append(basis.fullName());
buf.append('<');
boolean first = true;
for (TypeReference c : args) {
if (first) {
first = false;
} else {
buf.append(',');
}
buf.append(c.fullName());
}
buf.append('>');
return buf.toString();
}
@Override
public String binaryName() {
StringBuilder buf = new StringBuilder();
buf.append(basis.binaryName());
buf.append('<');
boolean first = true;
for (TypeReference c : args) {
if (first) {
first = false;
} else {
buf.append(',');
}
buf.append(c.binaryName());
}
buf.append('>');
return buf.toString();
}
@Override
public void generate(Formatter f) {
f.t(basis).p('<').g(args).p(Formatter.CLOSE_TYPE_ARGS);
}
@Override
void printLink(Formatter f) {
basis.printLink(f);
f.p("{@code <}");
boolean first = true;
for (TypeReference c : args) {
if (first) {
first = false;
} else {
f.p(',');
}
c.printLink(f);
}
f.p("{@code >}");
}
public Package _package() {
return basis._package();
}
public TypeReference _extends() {
TypeReference base = basis._extends();
if (base == null) {
return base;
}
return base.substituteParams(basis.typeParams(), args);
}
public Iterator<TypeReference> _implements() {
return new Iterator<TypeReference>() {
private final Iterator<TypeReference> core = basis._implements();
public void remove() {
core.remove();
}
public TypeReference next() {
return core.next().substituteParams(basis.typeParams(), args);
}
public boolean hasNext() {
return core.hasNext();
}
};
}
@Override
public TypeReference erasure() {
return basis;
}
public boolean isInterface() {
return basis.isInterface();
}
public boolean isAbstract() {
return basis.isAbstract();
}
@Override
public boolean isArray() {
return false;
}
//
// Equality is based on value
//
@Override
public boolean equals(Object obj) {
if (!(obj instanceof NarrowedClass)) {
return false;
}
return fullName().equals(((TypeReference) obj).fullName());
}
@Override
public int hashCode() {
return fullName().hashCode();
}
protected TypeReference substituteParams(TypeVariable[] variables, List<TypeReference> bindings) {
TypeReference b = basis.substituteParams(variables, bindings);
boolean different = b != basis;
List<TypeReference> clazz = new ArrayList<TypeReference>(args.size());
for (int i = 0; i < clazz.size(); i++) {
TypeReference c = args.get(i).substituteParams(variables, bindings);
clazz.set(i, c);
different |= c != args.get(i);
}
if (different) {
return new NarrowedClass(b, clazz);
} else {
return this;
}
}
@Override
public List<TypeReference> getTypeParameters() {
return args;
}
}