jruby/src/org/jruby/RubyJRuby.java at serializable_procs · MSNexploder/jruby · GitHub

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**** BEGIN LICENSE BLOCK *****

* Version: CPL 1.0/GPL 2.0/LGPL 2.1

* The contents of this file are subject to the Common Public

* License Version 1.0 (the "License"); you may not use this file

* except in compliance with the License. You may obtain a copy of

* the License at http://www.eclipse.org/legal/cpl-v10.html

* Software distributed under the License is distributed on an "AS

* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or

* implied. See the License for the specific language governing

* rights and limitations under the License.

* Alternatively, the contents of this file may be used under the terms of

* either of the GNU General Public License Version 2 or later (the "GPL"),

* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),

* in which case the provisions of the GPL or the LGPL are applicable instead

* of those above. If you wish to allow use of your version of this file only

* under the terms of either the GPL or the LGPL, and not to allow others to

* use your version of this file under the terms of the CPL, indicate your

* decision by deleting the provisions above and replace them with the notice

* and other provisions required by the GPL or the LGPL. If you do not delete

* the provisions above, a recipient may use your version of this file under

* the terms of any one of the CPL, the GPL or the LGPL.

***** END LICENSE BLOCK *****/

package org.jruby;

import java.io.IOException;

import java.io.PrintWriter;

import java.io.StringWriter;

import java.lang.management.ManagementFactory;

import java.lang.management.ThreadMXBean;

import java.net.URL;

import java.util.ArrayList;

import java.util.Collections;

import java.util.Enumeration;

import java.util.Iterator;

import java.util.List;

import org.jruby.anno.JRubyMethod;

import org.jruby.anno.JRubyModule;

import org.jruby.anno.JRubyClass;

import org.jruby.ast.ArgsNode;

import org.jruby.ast.ListNode;

import org.jruby.exceptions.RaiseException;

import org.jruby.javasupport.Java;

import org.jruby.javasupport.JavaObject;

import org.jruby.runtime.Arity;

import org.jruby.runtime.Block;

import org.jruby.runtime.builtin.IRubyObject;

import org.jruby.runtime.load.Library;

import org.jruby.internal.runtime.methods.DynamicMethod;

import org.jruby.ast.Node;

import org.jruby.ast.types.INameNode;

import org.jruby.compiler.ASTInspector;

import org.jruby.compiler.ASTCompiler;

import org.jruby.compiler.impl.StandardASMCompiler;

import org.jruby.internal.runtime.methods.MethodArgs;

import org.jruby.javasupport.JavaUtil;

import org.jruby.runtime.InterpretedBlock;

import org.jruby.runtime.ThreadContext;

import org.jruby.util.TypeConverter;

import org.objectweb.asm.ClassReader;

import org.objectweb.asm.util.TraceClassVisitor;

import java.util.Map;

import org.jruby.java.proxies.JavaProxy;

import org.jruby.runtime.ExecutionContext;

import org.jruby.runtime.ObjectAllocator;

import org.jruby.runtime.Visibility;

/**

* Module which defines JRuby-specific methods for use.

@JRubyModule(name="JRuby")

public class RubyJRuby {

public static RubyModule createJRuby(Ruby runtime) {

ThreadContext context = runtime.getCurrentContext();

runtime.getKernel().callMethod(context, "require", runtime.newString("java"));

RubyModule jrubyModule = runtime.defineModule("JRuby");

jrubyModule.defineAnnotatedMethods(RubyJRuby.class);

jrubyModule.defineAnnotatedMethods(UtilLibrary.class);

RubyClass compiledScriptClass = jrubyModule.defineClassUnder("CompiledScript",runtime.getObject(), runtime.getObject().getAllocator());

for (String name : new String[] {"name", "class_name", "original_script", "code"}) {

compiledScriptClass.addReadWriteAttribute(context, name);

}

compiledScriptClass.defineAnnotatedMethods(JRubyCompiledScript.class);

RubyClass threadLocalClass = jrubyModule.defineClassUnder("ThreadLocal", runtime.getObject(), JRubyThreadLocal.ALLOCATOR);

threadLocalClass.defineAnnotatedMethods(JRubyExecutionContextLocal.class);

RubyClass fiberLocalClass = jrubyModule.defineClassUnder("FiberLocal", runtime.getObject(), JRubyFiberLocal.ALLOCATOR);

fiberLocalClass.defineAnnotatedMethods(JRubyExecutionContextLocal.class);

return jrubyModule;

}

public static RubyModule createJRubyExt(Ruby runtime) {

runtime.getKernel().callMethod(runtime.getCurrentContext(),"require", runtime.newString("java"));

RubyModule mJRubyExt = runtime.getOrCreateModule("JRuby").defineModuleUnder("Extensions");

mJRubyExt.defineAnnotatedMethods(JRubyExtensions.class);

runtime.getObject().includeModule(mJRubyExt);

return mJRubyExt;

}

public static void createJRubyCoreExt(Ruby runtime) {

runtime.getClassClass().defineAnnotatedMethods(JRubyClassExtensions.class);

runtime.getThread().defineAnnotatedMethods(JRubyThreadExtensions.class);

runtime.getString().defineAnnotatedMethods(JRubyStringExtensions.class);

}

public static class JRubySynchronizedMeta {

@JRubyMethod(frame = true, visibility = Visibility.PRIVATE)

public static IRubyObject append_features(IRubyObject self, IRubyObject target) {

if (target instanceof RubyClass && self instanceof RubyModule) { // should always be true

RubyClass targetModule = ((RubyClass)target);

targetModule.becomeSynchronized();

return ((RubyModule)self).append_features(target);

}

throw target.getRuntime().newTypeError(self + " can only be included into classes");

}

@JRubyMethod(frame = true, visibility = Visibility.PRIVATE)

public static IRubyObject extend_object(IRubyObject self, IRubyObject obj) {

if (self instanceof RubyModule) {

RubyClass singletonClass = obj.getSingletonClass();

singletonClass.becomeSynchronized();

return ((RubyModule)self).extend_object(obj);

}

// should never happen

throw self.getRuntime().newTypeError("JRuby::Singleton.extend_object called against " + self);

}

public static class ExtLibrary implements Library {

public void load(Ruby runtime, boolean wrap) throws IOException {

RubyJRuby.createJRubyExt(runtime);

runtime.getMethod().defineAnnotatedMethods(MethodExtensions.class);

}

public static class CoreExtLibrary implements Library {

public void load(Ruby runtime, boolean wrap) throws IOException {

RubyJRuby.createJRubyCoreExt(runtime);

}

public static class SynchronizedLibrary implements Library {

public void load(Ruby runtime, boolean wrap) throws IOException {

RubyModule syncModule = runtime.getOrCreateModule("JRuby").defineModuleUnder("Synchronized");

syncModule.getSingletonClass().defineAnnotatedMethods(JRubySynchronizedMeta.class);

// make Synchronized itself be synchronized, so subclasses created later pick that up

syncModule.becomeSynchronized();

}

public static class TypeLibrary implements Library {

public void load(Ruby runtime, boolean wrap) throws IOException {

RubyModule jrubyType = runtime.defineModule("Type");

jrubyType.defineAnnotatedMethods(TypeLibrary.class);

}

@JRubyMethod(module = true)

public static IRubyObject coerce_to(ThreadContext context, IRubyObject self, IRubyObject object, IRubyObject clazz, IRubyObject method) {

Ruby ruby = object.getRuntime();

if (!(clazz instanceof RubyClass)) {

throw ruby.newTypeError(clazz, ruby.getClassClass());

}

if (!(method instanceof RubySymbol)) {

throw ruby.newTypeError(method, ruby.getSymbol());

}

RubyClass rubyClass = (RubyClass)clazz;

RubySymbol methodSym = (RubySymbol)method;

return TypeConverter.convertToTypeOrRaise(object, rubyClass, methodSym.asJavaString());

}

/**

* Utilities library for all those methods that don't need the full 'java' library

* to be loaded. This is done mostly for performance reasons. For example, for those

* who only need to enable the object space, not loading 'java' might save 200-300ms

* of startup time, like in case of jirb.

public static class UtilLibrary implements Library {

public void load(Ruby runtime, boolean wrap) throws IOException {

RubyModule mJRubyUtil = runtime.getOrCreateModule("JRuby").defineModuleUnder("Util");

mJRubyUtil.defineAnnotatedMethods(UtilLibrary.class);

}

@JRubyMethod(module = true)

public static void gc(IRubyObject recv) {

System.gc();

}

@JRubyMethod(name = "objectspace", module = true)

public static IRubyObject getObjectSpaceEnabled(IRubyObject recv) {

Ruby runtime = recv.getRuntime();

return RubyBoolean.newBoolean(

runtime, runtime.isObjectSpaceEnabled());

}

@JRubyMethod(name = "objectspace=", module = true)

public static IRubyObject setObjectSpaceEnabled(

IRubyObject recv, IRubyObject arg) {

Ruby runtime = recv.getRuntime();

runtime.setObjectSpaceEnabled(arg.isTrue());

return runtime.getNil();

}

@SuppressWarnings("deprecation")

@JRubyMethod(name = "classloader_resources", module = true)

public static IRubyObject getClassLoaderResources(IRubyObject recv, IRubyObject arg) {

Ruby runtime = recv.getRuntime();

String resource = arg.convertToString().toString();

final List<RubyString> urlStrings = new ArrayList<RubyString>();

try {

Enumeration<URL> urls = runtime.getJRubyClassLoader().getResources(resource);

while (urls.hasMoreElements()) {

URL url = urls.nextElement();

String urlString;

if ("jar".equals(url.getProtocol()) && url.getFile().startsWith("file:/")) {

try {

urlString = url.toURI().getSchemeSpecificPart();

} catch (java.net.URISyntaxException urise) {

if (runtime.getInstanceConfig().isDebug()) {

runtime.getErr().println("URISyntaxException trying to parse " + url + ", stack trace follows:");

urise.printStackTrace(runtime.getErr());

}

urlString = null;

}

} else {

urlString = url.getFile();

}

urlStrings.add(runtime.newString(urlString));

}

return RubyArray.newArrayNoCopy(runtime,

urlStrings.toArray(new IRubyObject[urlStrings.size()]));

} catch (IOException ignore) {}

return runtime.newEmptyArray();

}

@JRubyMethod(name = "runtime", frame = true, module = true)

public static IRubyObject runtime(IRubyObject recv, Block unusedBlock) {

return JavaUtil.convertJavaToUsableRubyObject(recv.getRuntime(), recv.getRuntime());

}

@JRubyMethod(frame = true, module = true)

public static IRubyObject with_current_runtime_as_global(ThreadContext context, IRubyObject recv, Block block) {

Ruby currentRuntime = context.getRuntime();

Ruby globalRuntime = Ruby.getGlobalRuntime();

try {

if (globalRuntime != currentRuntime) {

currentRuntime.useAsGlobalRuntime();

}

block.yieldSpecific(context);

} finally {

if (Ruby.getGlobalRuntime() != globalRuntime) {

globalRuntime.useAsGlobalRuntime();

}

return currentRuntime.getNil();

}

@JRubyMethod(name = {"parse", "ast_for"}, optional = 3, frame = true, module = true)

public static IRubyObject parse(IRubyObject recv, IRubyObject[] args, Block block) {

if(block.isGiven()) {

if(block.getBody() instanceof org.jruby.runtime.CompiledBlock) {

throw new RuntimeException("Cannot compile an already compiled block. Use -J-Djruby.jit.enabled=false to avoid this problem.");

}

Arity.checkArgumentCount(recv.getRuntime(),args,0,0);

return JavaUtil.convertJavaToUsableRubyObject(recv.getRuntime(), ((InterpretedBlock)block.getBody()).getBodyNode());

} else {

Arity.checkArgumentCount(recv.getRuntime(),args,1,3);

String filename = "-";

boolean extraPositionInformation = false;

RubyString content = args[0].convertToString();

if(args.length>1) {

filename = args[1].convertToString().toString();

if(args.length>2) {

extraPositionInformation = args[2].isTrue();

}

return JavaUtil.convertJavaToUsableRubyObject(recv.getRuntime(),

recv.getRuntime().parse(content.getByteList(), filename, null, 0, extraPositionInformation));

}

@JRubyMethod(name = "compile", optional = 3, frame = true, module = true)

public static IRubyObject compile(IRubyObject recv, IRubyObject[] args, Block block) {

Node node;

String filename;

RubyString content;

if(block.isGiven()) {

Arity.checkArgumentCount(recv.getRuntime(),args,0,0);

if(block.getBody() instanceof org.jruby.runtime.CompiledBlock) {

throw new RuntimeException("Cannot compile an already compiled block. Use -J-Djruby.jit.enabled=false to avoid this problem.");

}

content = RubyString.newEmptyString(recv.getRuntime());

Node bnode = ((InterpretedBlock)block.getBody()).getBodyNode();

node = new org.jruby.ast.RootNode(bnode.getPosition(), block.getBinding().getDynamicScope(), bnode);

filename = "__block_" + node.getPosition().getFile();

} else {

Arity.checkArgumentCount(recv.getRuntime(),args,1,3);

filename = "-";

boolean extraPositionInformation = false;

content = args[0].convertToString();

if(args.length>1) {

filename = args[1].convertToString().toString();

if(args.length>2) {

extraPositionInformation = args[2].isTrue();

}

node = recv.getRuntime().parse(content.getByteList(), filename, null, 0, extraPositionInformation);

}

String classname;

if (filename.equals("-e")) {

classname = "__dash_e__";

} else {

classname = filename.replace('\\', '/').replaceAll(".rb", "").replaceAll("-","_dash_");

}

ASTInspector inspector = new ASTInspector();

inspector.inspect(node);

StandardASMCompiler asmCompiler = new StandardASMCompiler(classname, filename);

ASTCompiler compiler = recv.getRuntime().getInstanceConfig().newCompiler();

compiler.compileRoot(node, asmCompiler, inspector);

byte[] bts = asmCompiler.getClassByteArray();

IRubyObject compiledScript = ((RubyModule)recv).fastGetConstant("CompiledScript").callMethod(recv.getRuntime().getCurrentContext(),"new");

compiledScript.callMethod(recv.getRuntime().getCurrentContext(), "name=", recv.getRuntime().newString(filename));

compiledScript.callMethod(recv.getRuntime().getCurrentContext(), "class_name=", recv.getRuntime().newString(classname));

compiledScript.callMethod(recv.getRuntime().getCurrentContext(), "original_script=", content);

compiledScript.callMethod(recv.getRuntime().getCurrentContext(), "code=", JavaUtil.convertJavaToUsableRubyObject(recv.getRuntime(), bts));

return compiledScript;

}

@JRubyMethod(name = "reference", required = 1, module = true)

public static IRubyObject reference(ThreadContext context, IRubyObject recv, IRubyObject obj) {

Ruby runtime = context.getRuntime();

return Java.getInstance(runtime, obj);

}

@JRubyMethod(name = "dereference", required = 1, module = true)

public static IRubyObject dereference(ThreadContext context, IRubyObject recv, IRubyObject obj) {

Object unwrapped;

if (obj instanceof JavaProxy) {

unwrapped = ((JavaProxy)obj).getObject();

} else if (obj.dataGetStruct() instanceof JavaObject) {

unwrapped = JavaUtil.unwrapJavaObject(obj);

} else {

throw context.getRuntime().newTypeError("got " + obj + ", expected wrapped Java object");

}

if (!(unwrapped instanceof IRubyObject)) {

throw context.getRuntime().newTypeError("got " + obj + ", expected Java-wrapped Ruby object");

}

return (IRubyObject)unwrapped;

}

@JRubyClass(name="JRuby::CompiledScript")

public static class JRubyCompiledScript {

@JRubyMethod(name = "to_s")

public static IRubyObject compiled_script_to_s(IRubyObject recv) {

return recv.getInstanceVariables().fastGetInstanceVariable("@original_script");

}

@JRubyMethod(name = "inspect")

public static IRubyObject compiled_script_inspect(IRubyObject recv) {

return recv.getRuntime().newString("#<JRuby::CompiledScript " + recv.getInstanceVariables().fastGetInstanceVariable("@name") + ">");

}

@JRubyMethod(name = "inspect_bytecode")

public static IRubyObject compiled_script_inspect_bytecode(IRubyObject recv) {

StringWriter sw = new StringWriter();

ClassReader cr = new ClassReader((byte[])recv.getInstanceVariables().fastGetInstanceVariable("@code").toJava(byte[].class));

TraceClassVisitor cv = new TraceClassVisitor(new PrintWriter(sw));

cr.accept(cv, ClassReader.SKIP_DEBUG);

return recv.getRuntime().newString(sw.toString());

}

public abstract static class JRubyExecutionContextLocal extends RubyObject {

private IRubyObject default_value;

private RubyProc default_proc;

public JRubyExecutionContextLocal(Ruby runtime, RubyClass type) {

super(runtime, type);

default_value = runtime.getNil();

default_proc = null;

}

@JRubyMethod(name="initialize", required=0, optional=1)

public IRubyObject rubyInitialize(ThreadContext context, IRubyObject args[], Block block) {

if (block.isGiven()) {

if (args.length != 0) {

throw context.getRuntime().newArgumentError("wrong number of arguments");

}

default_proc = block.getProcObject();

if (default_proc == null) {

default_proc = RubyProc.newProc(context.getRuntime(), block, block.type);

}

} else {

if (args.length == 1) {

default_value = args[0];

} else if (args.length != 0) {

throw context.getRuntime().newArgumentError("wrong number of arguments");

}

return context.getRuntime().getNil();

}

@JRubyMethod(name="default", required=0)

public IRubyObject getDefault(ThreadContext context) {

return default_value;

}

@JRubyMethod(name="default_proc", required=0)

public IRubyObject getDefaultProc(ThreadContext context) {

if (default_proc != null) {

return default_proc;

} else {

return context.getRuntime().getNil();

}

private static final IRubyObject[] EMPTY_ARGS = new IRubyObject[]{};

@JRubyMethod(name="value", required=0)

public IRubyObject getValue(ThreadContext context) {

final IRubyObject value;

final Map<Object, IRubyObject> contextVariables;

contextVariables = getContextVariables(context);

value = contextVariables.get(this);

if (value != null) {

return value;

} else if (default_proc != null) {

// pre-set for the sake of terminating recursive calls

contextVariables.put(this, context.getRuntime().getNil());

final IRubyObject new_value;

new_value = default_proc.call(context, EMPTY_ARGS, null, Block.NULL_BLOCK);

contextVariables.put(this, new_value);

return new_value;

} else {

return default_value;

}

@JRubyMethod(name="value=", required=1)

public IRubyObject setValue(ThreadContext context, IRubyObject value) {

getContextVariables(context).put(this, value);

return value;

}

protected final Map<Object, IRubyObject> getContextVariables(ThreadContext context) {

return getExecutionContext(context).getContextVariables();

}

protected abstract ExecutionContext getExecutionContext(ThreadContext context);

}

@JRubyClass(name="JRuby::ThreadLocal")

public final static class JRubyThreadLocal extends JRubyExecutionContextLocal {

public static final ObjectAllocator ALLOCATOR = new ObjectAllocator() {

public IRubyObject allocate(Ruby runtime, RubyClass type) {

return new JRubyThreadLocal(runtime, type);

}

};

public JRubyThreadLocal(Ruby runtime, RubyClass type) {

super(runtime, type);

}

protected final ExecutionContext getExecutionContext(ThreadContext context) {

return context.getThread();

}

@JRubyClass(name="JRuby::FiberLocal")

public final static class JRubyFiberLocal extends JRubyExecutionContextLocal {

public static final ObjectAllocator ALLOCATOR = new ObjectAllocator() {

public IRubyObject allocate(Ruby runtime, RubyClass type) {

return new JRubyFiberLocal(runtime, type);

}

};

public JRubyFiberLocal(Ruby runtime, RubyClass type) {

super(runtime, type);

}

@JRubyMethod(name="with_value", required=1)

public IRubyObject withValue(ThreadContext context, IRubyObject value, Block block) {

final Map<Object, IRubyObject> contextVariables;

contextVariables = getContextVariables(context);

final IRubyObject old_value;

old_value = contextVariables.get(this);

contextVariables.put(this, value);

try {

return block.yieldSpecific(context);

} finally {

contextVariables.put(this, old_value);

}

protected final ExecutionContext getExecutionContext(ThreadContext context) {

final ExecutionContext fiber;

fiber = context.getFiber();

if (fiber != null) {

return fiber;

} else {

/* root fiber */

return context.getThread();

}

@JRubyModule(name="JRubyExtensions")

public static class JRubyExtensions {

@JRubyMethod(name = "steal_method", required = 2, module = true)

public static IRubyObject steal_method(IRubyObject recv, IRubyObject type, IRubyObject methodName) {

RubyModule to_add = null;

if(recv instanceof RubyModule) {

to_add = (RubyModule)recv;

} else {

to_add = recv.getSingletonClass();

}

String name = methodName.toString();

if(!(type instanceof RubyModule)) {

throw recv.getRuntime().newArgumentError("First argument must be a module/class");

}

DynamicMethod method = ((RubyModule)type).searchMethod(name);

if(method == null || method.isUndefined()) {

throw recv.getRuntime().newArgumentError("No such method " + name + " on " + type);

}

to_add.addMethod(name, method);

return recv.getRuntime().getNil();

}

@JRubyMethod(name = "steal_methods", required = 1, rest = true, module = true)

public static IRubyObject steal_methods(IRubyObject recv, IRubyObject[] args) {

IRubyObject type = args[0];

for(int i=1;i<args.length;i++) {

steal_method(recv, type, args[i]);

}

return recv.getRuntime().getNil();

}

public static class JRubyClassExtensions {

// TODO: Someday, enable.

@JRubyMethod(name = "subclasses", optional = 1)

public static IRubyObject subclasses(ThreadContext context, IRubyObject maybeClass, IRubyObject[] args) {

RubyClass clazz;

if (maybeClass instanceof RubyClass) {

clazz = (RubyClass)maybeClass;

} else {

throw context.getRuntime().newTypeError(maybeClass, context.getRuntime().getClassClass());

}

boolean recursive = false;

if (args.length == 1) {

if (args[0] instanceof RubyBoolean) {

recursive = args[0].isTrue();

} else {

context.getRuntime().newTypeError(args[0], context.getRuntime().fastGetClass("Boolean"));

}

return RubyArray.newArray(context.getRuntime(), clazz.subclasses(recursive)).freeze(context);

}

@JRubyMethod(name = "become_java!", optional = 1)

public static IRubyObject become_java_bang(ThreadContext context, IRubyObject maybeClass, IRubyObject[] args) {

RubyClass clazz;

if (maybeClass instanceof RubyClass) {

clazz = (RubyClass)maybeClass;

} else {

throw context.getRuntime().newTypeError(maybeClass, context.getRuntime().getClassClass());

}

if (args.length > 0) {

clazz.reify(args[0].convertToString().asJavaString());

} else {

clazz.reify();

}

return JavaUtil.convertJavaToUsableRubyObject(context.getRuntime(), clazz.getReifiedClass());

}

@JRubyMethod

public static IRubyObject java_class(ThreadContext context, IRubyObject maybeClass) {

RubyClass clazz;

if (maybeClass instanceof RubyClass) {

clazz = (RubyClass)maybeClass;

} else {

throw context.getRuntime().newTypeError(maybeClass, context.getRuntime().getClassClass());

}

for (RubyClass current = clazz; current != null; current = current.getSuperClass()) {

if (current.getReifiedClass() != null) {

clazz = current;

break;

}

return JavaUtil.convertJavaToUsableRubyObject(context.getRuntime(), clazz.getReifiedClass());

}

@JRubyMethod

public static IRubyObject add_method_annotation(ThreadContext context, IRubyObject maybeClass, IRubyObject methodName, IRubyObject annoMap) {

RubyClass clazz = getRubyClass(maybeClass, context);

String method = methodName.convertToString().asJavaString();

Map<Class,Map<String,Object>> annos = (Map<Class,Map<String,Object>>)annoMap;

for (Map.Entry<Class,Map<String,Object>> entry : annos.entrySet()) {

Map<String,Object> value = entry.getValue();

if (value == null) value = Collections.EMPTY_MAP;

clazz.addMethodAnnotation(method, getAnnoClass(context, entry.getKey()), value);

}

return context.getRuntime().getNil();

}

@JRubyMethod

public static IRubyObject add_parameter_annotations(ThreadContext context, IRubyObject maybeClass, IRubyObject methodName, IRubyObject paramAnnoMaps) {

RubyClass clazz = getRubyClass(maybeClass, context);

String method = methodName.convertToString().asJavaString();

List<Map<Class,Map<String,Object>>> annos = (List<Map<Class,Map<String,Object>>>) paramAnnoMaps;

for (int i = annos.size() - 1; i >= 0; i--) {

Map<Class, Map<String, Object>> paramAnnos = annos.get(i);

for (Map.Entry<Class,Map<String,Object>> entry : paramAnnos.entrySet()) {

Map<String,Object> value = entry.getValue();

if (value == null) value = Collections.EMPTY_MAP;

clazz.addParameterAnnotation(method, i, getAnnoClass(context, entry.getKey()), value);

}

return context.getRuntime().getNil();

}

@JRubyMethod

public static IRubyObject add_class_annotation(ThreadContext context, IRubyObject maybeClass, IRubyObject annoMap) {

RubyClass clazz = getRubyClass(maybeClass, context);

Map<Class,Map<String,Object>> annos = (Map<Class,Map<String,Object>>)annoMap;

for (Map.Entry<Class,Map<String,Object>> entry : annos.entrySet()) {

Map<String,Object> value = entry.getValue();

if (value == null) value = Collections.EMPTY_MAP;

clazz.addClassAnnotation(getAnnoClass(context, entry.getKey()), value);

}

return context.getRuntime().getNil();

}

@JRubyMethod

public static IRubyObject add_method_signature(ThreadContext context, IRubyObject maybeClass, IRubyObject methodName, IRubyObject clsList) {

RubyClass clazz = getRubyClass(maybeClass, context);

List<Class> types = new ArrayList<Class>();

for (Iterator i = ((List)clsList).iterator(); i.hasNext();) {

types.add(getAnnoClass(context, i.next()));

}

clazz.addMethodSignature(methodName.convertToString().asJavaString(), types.toArray(new Class[types.size()]));

return context.getRuntime().getNil();

}

private static Class getAnnoClass(ThreadContext context, Object annoClass) {

if (annoClass instanceof Class) {

return (Class) annoClass;

} else if (annoClass instanceof IRubyObject) {

IRubyObject annoMod = (IRubyObject) annoClass;

if (annoMod.respondsTo("java_class")) {

return (Class) annoMod.callMethod(context, "java_class").toJava(Object.class);

}

throw context.getRuntime().newArgumentError("must supply java class argument instead of " + annoClass.toString());

}

private static RubyClass getRubyClass(IRubyObject maybeClass, ThreadContext context) throws RaiseException {

RubyClass clazz;

if (maybeClass instanceof RubyClass) {

clazz = (RubyClass) maybeClass;

} else {

throw context.getRuntime().newTypeError(maybeClass, context.getRuntime().getClassClass());

}

return clazz;

}

public static class JRubyThreadExtensions {

private static final ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();

@JRubyMethod(name = "times", module = true)

public static IRubyObject times(IRubyObject recv, Block unusedBlock) {

Ruby runtime = recv.getRuntime();

double system = threadBean.getCurrentThreadCpuTime() / 1000000000.0;

double user = threadBean.getCurrentThreadUserTime() / 1000000000.0;

RubyFloat zero = runtime.newFloat(0.0);

return RubyStruct.newStruct(runtime.getTmsStruct(),

new IRubyObject[] { RubyFloat.newFloat(runtime, user), RubyFloat.newFloat(runtime, system), zero, zero },

Block.NULL_BLOCK);

}

public static class JRubyStringExtensions {

@JRubyMethod(name = "alloc", meta = true)

public static IRubyObject alloc(ThreadContext context, IRubyObject recv, IRubyObject size) {

return RubyString.newStringLight(context.getRuntime(), (int)size.convertToInteger().getLongValue());

}

public static class MethodExtensions {

@JRubyMethod(name = "args")

public static IRubyObject methodArgs(IRubyObject recv) {

Ruby runtime = recv.getRuntime();

RubyMethod rubyMethod = (RubyMethod)recv;

DynamicMethod method = rubyMethod.method;

if (method instanceof MethodArgs) {

RubySymbol req = runtime.newSymbol("req");

RubySymbol opt = runtime.newSymbol("opt");

RubySymbol rest = runtime.newSymbol("rest");

RubySymbol block = runtime.newSymbol("block");

MethodArgs interpMethod = (MethodArgs)method;

ArgsNode args = interpMethod.getArgsNode();

RubyArray argsArray = RubyArray.newArray(runtime);

ListNode requiredArgs = args.getPre();

for (int i = 0; requiredArgs != null && i < requiredArgs.size(); i++) {

argsArray.append(RubyArray.newArray(runtime, req, getNameFrom(runtime, (INameNode) requiredArgs.get(i))));

}

ListNode optArgs = args.getOptArgs();

for (int i = 0; optArgs != null && i < optArgs.size(); i++) {

argsArray.append(RubyArray.newArray(runtime, opt, getNameFrom(runtime, (INameNode) optArgs.get(i))));

}

if (args.getRestArg() >= 0) {

argsArray.append(RubyArray.newArray(runtime, rest, getNameFrom(runtime, args.getRestArgNode())));

}

ListNode requiredArgsPost = args.getPost();

for (int i = 0; requiredArgsPost != null && i < requiredArgsPost.size(); i++) {

argsArray.append(RubyArray.newArray(runtime, req, getNameFrom(runtime, (INameNode) requiredArgsPost.get(i))));

}

if (args.getBlock() != null) {

argsArray.append(RubyArray.newArray(runtime, block, getNameFrom(runtime, args.getBlock())));

}

return argsArray;

}

return runtime.getNil();

}

private static IRubyObject getNameFrom(Ruby runtime, INameNode node) {

return node == null ? runtime.getNil() : RubySymbol.newSymbol(runtime, node.getName());

}

jruby/src/org/jruby/RubyJRuby.java at serializable_procs · MSNexploder/jruby · GitHub

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