jruby/core/src/main/java/org/jruby/RubyMethod.java at master · jruby/jruby · GitHub

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

* Version: EPL 2.0/GPL 2.0/LGPL 2.1

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

* License Version 2.0 (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/epl-v20.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 EPL, 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 EPL, the GPL or the LGPL.

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

package org.jruby;

import org.jruby.anno.JRubyMethod;

import org.jruby.anno.JRubyClass;

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

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

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

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

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

import org.jruby.runtime.ArgumentDescriptor;

import org.jruby.runtime.Block;

import org.jruby.runtime.ClassIndex;

import org.jruby.runtime.Helpers;

import org.jruby.runtime.JavaSites;

import org.jruby.runtime.MethodBlockBody;

import org.jruby.runtime.Signature;

import org.jruby.runtime.ThreadContext;

import org.jruby.runtime.builtin.IRubyObject;

import org.jruby.runtime.callsite.CacheEntry;

import static org.jruby.api.Convert.*;

import static org.jruby.api.Create.newArray;

import static org.jruby.api.Create.newString;

import static org.jruby.api.Define.defineClass;

import static org.jruby.ir.runtime.IRRuntimeHelpers.dupIfKeywordRestAtCallsite;

import static org.jruby.runtime.ObjectAllocator.NOT_ALLOCATABLE_ALLOCATOR;

/**

* The RubyMethod class represents a RubyMethod object.

* You can get such a method by calling the "method" method of an object.

* Note: This was renamed from Method.java

* @author jpetersen

* @since 0.2.3

@JRubyClass(name="Method")

public class RubyMethod extends AbstractRubyMethod {

protected IRubyObject receiver;

protected RubyMethod(Ruby runtime, RubyClass rubyClass) {

super(runtime, rubyClass);

}

public static RubyClass createMethodClass(ThreadContext context, RubyClass Object) {

return defineClass(context, "Method", Object, NOT_ALLOCATABLE_ALLOCATOR).

reifiedClass(RubyMethod.class).

classIndex(ClassIndex.METHOD).

defineMethods(context, AbstractRubyMethod.class, RubyMethod.class);

}

public static RubyMethod newMethod(

RubyModule implementationModule,

String methodName,

RubyModule originModule,

String originName,

CacheEntry entry,

IRubyObject receiver) {

Ruby runtime = implementationModule.getRuntime();

RubyMethod newMethod = new RubyMethod(runtime, runtime.getMethod());

newMethod.implementationModule = implementationModule;

newMethod.methodName = methodName;

newMethod.originModule = originModule;

newMethod.originName = originName;

newMethod.entry = entry;

newMethod.method = entry.method;

newMethod.sourceModule = entry.sourceModule;

newMethod.receiver = receiver;

return newMethod;

}

/** Call the method.

@JRubyMethod(name = {"call", "[]"}, keywords = true)

public IRubyObject call(ThreadContext context, Block block) {

return method.call(context, receiver, sourceModule, methodName, block);

}

@JRubyMethod(name = {"call", "[]"}, keywords = true)

public IRubyObject call(ThreadContext context, IRubyObject arg, Block block) {

arg = dupIfKeywordRestAtCallsite(context, arg);

return method.call(context, receiver, sourceModule, methodName, arg, block);

}

@JRubyMethod(name = {"call", "[]"}, keywords = true)

public IRubyObject call(ThreadContext context, IRubyObject arg0, IRubyObject arg1, Block block) {

arg1 = dupIfKeywordRestAtCallsite(context, arg1);

return method.call(context, receiver, sourceModule, methodName, arg0, arg1, block);

}

@JRubyMethod(name = {"call", "[]"}, keywords = true)

public IRubyObject call(ThreadContext context, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2, Block block) {

arg2 = dupIfKeywordRestAtCallsite(context, arg2);

return method.call(context, receiver, sourceModule, methodName, arg0, arg1, arg2, block);

}

@JRubyMethod(name = {"call", "[]"}, rest = true, keywords = true)

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

if (args.length > 0) {

args[args.length - 1] = dupIfKeywordRestAtCallsite(context, args[args.length - 1]);

}

return method.call(context, receiver, sourceModule, methodName, args, block);

}

/** Returns the number of arguments a method accepted.

* @return the number of arguments of a method.

@JRubyMethod

public RubyFixnum arity(ThreadContext context) {

Signature signature = method.getSignature();

int min = signature.min();

int max = signature.max();

return asFixnum(context, min == max ? min : -min-1);

}

@JRubyMethod(name = "eql?")

public IRubyObject op_eql(ThreadContext context, IRubyObject other) {

return op_equal(context, other);

}

@Override

@JRubyMethod(name = "==")

public RubyBoolean op_equal(ThreadContext context, IRubyObject other) {

return asBoolean(context, equals(other) );

}

@Override

@JRubyMethod(name = "===")

public IRubyObject op_eqq(ThreadContext context, IRubyObject other) {

return method.call(context, receiver, sourceModule, methodName, other, Block.NULL_BLOCK);

}

@Override

public boolean equals(Object other) {

if (!(other instanceof RubyMethod)) {

return false;

}

if (method instanceof ProcMethod) {

return ((ProcMethod) method).isSame(((RubyMethod) other).getMethod());

}

if (getMetaClass() != ((RubyBasicObject) other).getMetaClass()) {

return false;

}

RubyMethod otherMethod = (RubyMethod)other;

return receiver == otherMethod.receiver &&

( isSerialMatch(otherMethod.method) || isMethodMissingMatch(otherMethod.getMethod().getRealMethod()) );

}

private boolean isMethodMissingMatch(DynamicMethod other) {

return (method.getRealMethod() instanceof RubyModule.RespondToMissingMethod) &&

((RubyModule.RespondToMissingMethod) method.getRealMethod()).equals(other);

}

private boolean isSerialMatch(DynamicMethod otherMethod) {

return method.getRealMethod().getSerialNumber() == otherMethod.getRealMethod().getSerialNumber();

}

@JRubyMethod

public RubyFixnum hash(ThreadContext context) {

return asFixnum(context, hashCodeImpl());

}

@Override

public int hashCode() {

return (int) hashCodeImpl();

}

private long hashCodeImpl() {

return receiver.hashCode() * method.getRealMethod().getSerialNumber();

}

@JRubyMethod(name = "clone")

@Override

public RubyMethod rbClone() {

RubyMethod newMethod = newMethod(implementationModule, methodName, originModule, originName, entry, receiver);

ThreadContext context = getRuntime().getCurrentContext();

return (RubyMethod) cloneSetup(context, newMethod, context.nil);

}

@JRubyMethod

public RubyMethod dup(ThreadContext context) {

RubyMethod newMethod = newMethod(implementationModule, methodName, originModule, originName, entry, receiver);

return (RubyMethod) dupSetup(context, newMethod);

}

/** Create a Proc object.

@JRubyMethod

public IRubyObject to_proc(ThreadContext context) {

Signature signature = method.getSignature();

ArgumentDescriptor[] argsDesc = method instanceof IRMethodArgs ?

((IRMethodArgs) method).getArgumentDescriptors() :

Helpers.methodToArgumentDescriptors(context, method);

int line = getLine(); // getLine adds 1 to 1-index but we need to reset to 0-index internally

MethodBlockBody body = new MethodBlockBody(context.runtime.getStaticScopeFactory().getDummyScope(), signature, entry, argsDesc,

receiver, originModule, originName, getFilename(), line == -1 ? -1 : line - 1);

Block b = MethodBlockBody.createMethodBlock(body);

RubyProc proc = RubyProc.newMethodProc(context.runtime, b);

return proc;

}

@JRubyMethod

public RubyUnboundMethod unbind() {

RubyUnboundMethod unboundMethod =

RubyUnboundMethod.newUnboundMethod(implementationModule, methodName, originModule, originName, entry);

return unboundMethod;

}

@JRubyMethod(name = {"inspect", "to_s"})

public IRubyObject inspect(ThreadContext context) {

return inspect(receiver);

}

@JRubyMethod

public IRubyObject receiver(ThreadContext context) {

return receiver;

}

@JRubyMethod

public IRubyObject source_location(ThreadContext context) {

String filename = getFilename();

return filename == null ? context.nil :

newArray(context, newString(context, filename), asFixnum(context, getLine()));

}

@JRubyMethod

public IRubyObject parameters(ThreadContext context) {

return Helpers.methodToParameters(context, this);

}

@JRubyMethod

public IRubyObject curry(ThreadContext context) {

IRubyObject proc = to_proc(context);

return sites(context).curry.call(context, proc, proc);

}

@JRubyMethod

public IRubyObject curry(ThreadContext context, IRubyObject arg0) {

IRubyObject proc = to_proc(context);

return sites(context).curry.call(context, proc, proc, arg0);

}

@JRubyMethod

public IRubyObject super_method(ThreadContext context) {

RubyModule superClass = null;

if (method instanceof PartialDelegatingMethod || method instanceof AliasMethod) {

RubyModule definedClass = method.getRealMethod().getDefinedClass();

RubyModule module = sourceModule.findImplementer(definedClass);

if (module != null) superClass = module.getSuperClass();

} else {

superClass = sourceModule.getSuperClass();

}

return super_method(context, receiver, superClass);

}

public IRubyObject getReceiver() {

return receiver;

}

@Deprecated(since = "9.4.6.0")

public IRubyObject curry(ThreadContext context, IRubyObject[] args) {

IRubyObject proc = to_proc(context);

return sites(context).curry.call(context, proc, proc, args);

}

private static JavaSites.MethodSites sites(ThreadContext context) {

return context.sites.Method;

}

jruby/core/src/main/java/org/jruby/RubyMethod.java at master · jruby/jruby · GitHub

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jruby/core/src/main/java/org/jruby/RubyMethod.java at master · jruby/jruby · GitHub

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