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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package jdk.nashorn.internal.tools.nasgen;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import jdk.internal.org.objectweb.asm.Type;
import jdk.nashorn.internal.tools.nasgen.MemberInfo.Kind;
import static jdk.nashorn.internal.tools.nasgen.StringConstants.OBJ_ANNO_PKG;
import static jdk.nashorn.internal.tools.nasgen.StringConstants.RUNTIME_PKG;
/**
* All annotation information from a class that is annotated with
* the annotation com.sun.oracle.objects.annotations.ScriptClass.
*
*/
public final class ScriptClassInfo {
private static String getTypeDescriptor(final String pkg, final String name) {
return "L" + pkg + name + ";";
}
// descriptors for various annotations
static final String SCRIPT_CLASS_ANNO_DESC = getTypeDescriptor(OBJ_ANNO_PKG, "ScriptClass");
static final String CONSTRUCTOR_ANNO_DESC = getTypeDescriptor(OBJ_ANNO_PKG, "Constructor");
static final String FUNCTION_ANNO_DESC = getTypeDescriptor(OBJ_ANNO_PKG, "Function");
static final String GETTER_ANNO_DESC = getTypeDescriptor(OBJ_ANNO_PKG, "Getter");
static final String SETTER_ANNO_DESC = getTypeDescriptor(OBJ_ANNO_PKG, "Setter");
static final String PROPERTY_ANNO_DESC = getTypeDescriptor(OBJ_ANNO_PKG, "Property");
static final String WHERE_ENUM_DESC = getTypeDescriptor(OBJ_ANNO_PKG, "Where");
static final String LINK_LOGIC_DESC = getTypeDescriptor(OBJ_ANNO_PKG, "SpecializedFunction$LinkLogic");
static final String SPECIALIZED_FUNCTION = getTypeDescriptor(OBJ_ANNO_PKG, "SpecializedFunction");
static final Map<String, Kind> annotations = new HashMap<>();
static {
annotations.put(SCRIPT_CLASS_ANNO_DESC, Kind.SCRIPT_CLASS);
annotations.put(FUNCTION_ANNO_DESC, Kind.FUNCTION);
annotations.put(CONSTRUCTOR_ANNO_DESC, Kind.CONSTRUCTOR);
annotations.put(GETTER_ANNO_DESC, Kind.GETTER);
annotations.put(SETTER_ANNO_DESC, Kind.SETTER);
annotations.put(PROPERTY_ANNO_DESC, Kind.PROPERTY);
annotations.put(SPECIALIZED_FUNCTION, Kind.SPECIALIZED_FUNCTION);
}
// name of the script class
private String name;
// member info for script properties
private List<MemberInfo> members = Collections.emptyList();
// java class name that is annotated with @ScriptClass
private String javaName;
/**
* @return the name
*/
public String getName() {
return name;
}
/**
* @param name the name to set
*/
public void setName(final String name) {
this.name = name;
}
/**
* @return the members
*/
public List<MemberInfo> getMembers() {
return Collections.unmodifiableList(members);
}
/**
* @param members the members to set
*/
public void setMembers(final List<MemberInfo> members) {
this.members = members;
}
MemberInfo getConstructor() {
for (final MemberInfo memInfo : members) {
if (memInfo.getKind() == Kind.CONSTRUCTOR) {
return memInfo;
}
}
return null;
}
List<MemberInfo> getSpecializedConstructors() {
final List<MemberInfo> res = new LinkedList<>();
for (final MemberInfo memInfo : members) {
if (memInfo.isSpecializedConstructor()) {
assert memInfo.getKind() == Kind.SPECIALIZED_FUNCTION;
res.add(memInfo);
}
}
return Collections.unmodifiableList(res);
}
boolean isConstructorNeeded() {
// Constructor class generation is needed if we one or
// more constructor properties are defined or @Constructor
// is defined in the class.
for (final MemberInfo memInfo : members) {
if (memInfo.getKind() == Kind.CONSTRUCTOR ||
memInfo.getWhere() == Where.CONSTRUCTOR) {
return true;
}
}
return false;
}
boolean isPrototypeNeeded() {
// Prototype class generation is needed if we have at least one
// prototype property or @Constructor defined in the class.
for (final MemberInfo memInfo : members) {
if (memInfo.getWhere() == Where.PROTOTYPE || memInfo.isConstructor()) {
return true;
}
}
return false;
}
int getPrototypeMemberCount() {
int count = 0;
for (final MemberInfo memInfo : members) {
switch (memInfo.getKind()) {
case SETTER:
case SPECIALIZED_FUNCTION:
// SETTER was counted when GETTER was encountered.
// SPECIALIZED_FUNCTION was counted as FUNCTION already.
continue;
}
if (memInfo.getWhere() == Where.PROTOTYPE) {
count++;
}
}
return count;
}
int getConstructorMemberCount() {
int count = 0;
for (final MemberInfo memInfo : members) {
switch (memInfo.getKind()) {
case CONSTRUCTOR:
case SETTER:
case SPECIALIZED_FUNCTION:
// SETTER was counted when GETTER was encountered.
// Constructor and constructor SpecializedFunctions
// are not added as members and so not counted.
continue;
}
if (memInfo.getWhere() == Where.CONSTRUCTOR) {
count++;
}
}
return count;
}
int getInstancePropertyCount() {
int count = 0;
for (final MemberInfo memInfo : members) {
switch (memInfo.getKind()) {
case SETTER:
case SPECIALIZED_FUNCTION:
// SETTER was counted when GETTER was encountered.
// SPECIALIZED_FUNCTION was counted as FUNCTION already.
continue;
}
if (memInfo.getWhere() == Where.INSTANCE) {
count++;
}
}
return count;
}
MemberInfo find(final String findJavaName, final String findJavaDesc, final int findAccess) {
for (final MemberInfo memInfo : members) {
if (memInfo.getJavaName().equals(findJavaName) &&
memInfo.getJavaDesc().equals(findJavaDesc) &&
memInfo.getJavaAccess() == findAccess) {
return memInfo;
}
}
return null;
}
List<MemberInfo> findSpecializations(final String methodName) {
final List<MemberInfo> res = new LinkedList<>();
for (final MemberInfo memInfo : members) {
if (memInfo.getName().equals(methodName) &&
memInfo.getKind() == Kind.SPECIALIZED_FUNCTION) {
res.add(memInfo);
}
}
return Collections.unmodifiableList(res);
}
MemberInfo findSetter(final MemberInfo getter) {
assert getter.getKind() == Kind.GETTER : "getter expected";
final String getterName = getter.getName();
final Where getterWhere = getter.getWhere();
for (final MemberInfo memInfo : members) {
if (memInfo.getKind() == Kind.SETTER &&
getterName.equals(memInfo.getName()) &&
getterWhere == memInfo.getWhere()) {
return memInfo;
}
}
return null;
}
/**
* @return the javaName
*/
public String getJavaName() {
return javaName;
}
/**
* @param javaName the javaName to set
*/
void setJavaName(final String javaName) {
this.javaName = javaName;
}
String getConstructorClassName() {
return getJavaName() + StringConstants.CONSTRUCTOR_SUFFIX;
}
String getPrototypeClassName() {
return getJavaName() + StringConstants.PROTOTYPE_SUFFIX;
}
void verify() {
boolean constructorSeen = false;
for (final MemberInfo memInfo : getMembers()) {
if (memInfo.isConstructor()) {
if (constructorSeen) {
error("more than @Constructor method");
}
constructorSeen = true;
}
try {
memInfo.verify();
} catch (final Exception e) {
e.printStackTrace();
error(e.getMessage());
}
}
}
private void error(final String msg) throws RuntimeException {
throw new RuntimeException(javaName + " : " + msg);
}
}