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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.
*
* Copyright (C) 2007 Charles O Nutter <headius@headius.com>
*
* 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.runtime;
import org.jruby.runtime.builtin.IRubyObject;
/**
* This is the abstract superclass for all call sites in the system.
*/
public abstract class CallSite {
/** The method name this site calls and caches */
public final String methodName;
/** The type of call this site makes */
protected final CallType callType;
/**
* Construct a new CallSite with the given method name and call type.
*
* @param methodName the method name this site will call and cache
* @param callType the type of call to perform (normal, functional, etc)
* @see org.jruby.runtime.CallType
*/
public CallSite(String methodName, CallType callType) {
this.methodName = methodName;
this.callType = callType;
}
// binary typed calls
/**
* Call the site's method against the target object, passing a literal long
* value.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param fixnum the literal long value to pass
* @return the result of the call
*/
public abstract IRubyObject call(ThreadContext context, IRubyObject caller, IRubyObject self, long fixnum);
/**
* Call the site's method against the target object, passing a literal long
* value. This version does not check visibility.
*
* @param context the ThreadContext for the current thread
* @param self the target object to call against
* @param fixnum the literal long value to pass
* @return the result of the call
*/
public IRubyObject fcall(ThreadContext context, IRubyObject self, long fixnum) {
return call(context, self, self, fixnum);
}
/**
* Call the site's method against the target object, passing a literal double
* value.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param flote the literal double value to pass
* @return the result of the call
*/
public abstract IRubyObject call(ThreadContext context, IRubyObject caller, IRubyObject self, double flote);
/**
* Call the site's method against the target object, passing a literal double
* value. This version does not check visibility.
*
* @param context the ThreadContext for the current thread
* @param self the target object to call against
* @param flote the literal double value to pass
* @return the result of the call
*/
public IRubyObject fcall(ThreadContext context, IRubyObject self, double flote) {
return call(context, self, self, flote);
}
// no block
/**
* Call the site's method against the target object passing no args.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @return the result of the call
*/
public abstract IRubyObject call(ThreadContext context, IRubyObject caller, IRubyObject self);
/**
* Call the site's method against the target object passing one argument.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param arg0 the argument to pass
* @return the result of the call
*/
public abstract IRubyObject call(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg0);
/**
* Call the site's method against the target object passing two arguments.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param arg0 the first argument to pass
* @param arg1 the second argument to pass
* @return the result of the call
*/
public abstract IRubyObject call(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg0, IRubyObject arg1);
/**
* Call the site's method against the target object passing two arguments.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param arg0 the first argument to pass
* @param arg1 the second argument to pass
* @param arg2 the third argument to pass
* @return the result of the call
*/
public abstract IRubyObject call(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2);
/**
* Call the site's method against the target object passing arguments.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param args the arguments to pass
* @return the result of the call
*/
public abstract IRubyObject call(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject... args);
/**
* Call the site's method against the target object passing arguments.
*
* As a "varargs" method, this will use the length of the args array to
* dispatch to the correct arity call, rather than dispatching unconditionally
* to the IRubyObject[] path.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param args the arguments to pass
* @return the result of the call
*/
public abstract IRubyObject callVarargs(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject... args);
// with block pass
/**
* Call the site's method against the target object passing no arguments and
* a non-literal (block pass, &) block.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param block the block argument to pass
* @return the result of the call
*/
public abstract IRubyObject call(ThreadContext context, IRubyObject caller, IRubyObject self, Block block);
/**
* Call the site's method against the target object passing one argument and
* a non-literal (block pass, &) block.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param arg0 the argument to pass
* @param block the block argument to pass
* @return the result of the call
*/
public abstract IRubyObject call(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg0, Block block);
/**
* Call the site's method against the target object passing two arguments and
* a non-literal (block pass, &) block.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param arg0 the first argument to pass
* @param arg1 the second argument to pass
* @param block the block argument to pass
* @return the result of the call
*/
public abstract IRubyObject call(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg0, IRubyObject arg1, Block block);
/**
* Call the site's method against the target object passing three arguments and
* a non-literal (block pass, &) block.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param arg0 the first argument to pass
* @param arg1 the second argument to pass
* @param arg2 the third argument to pass
* @param block the block argument to pass
* @return the result of the call
*/
public abstract IRubyObject call(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2, Block block);
/**
* Call the site's method against the target object passing one argument and
* a non-literal (block pass, &) block.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param args the arguments to pass
* @param block the block argument to pass
* @return the result of the call
*/
public abstract IRubyObject call(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject[] args, Block block);
/**
* Call the site's method against the target object passing one argument and
* a non-literal (block pass, &) block.
*
* As a "varargs" method, this will use the length of the args array to
* dispatch to the correct arity call, rather than dispatching unconditionally
* to the IRubyObject[] path.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param args the arguments to pass
* @param block the block argument to pass
* @return the result of the call
*/
public abstract IRubyObject callVarargs(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject[] args, Block block);
// with block literal (iter)
/**
* Call the site's method against the target object passing no arguments and
* a literal block. This version handles break jumps by returning their
* value if this is the appropriate place in the call stack to do so.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param block the literal block to pass
* @return the result of the call
*/
public abstract IRubyObject callIter(ThreadContext context, IRubyObject caller, IRubyObject self, Block block);
/**
* Call the site's method against the target object passing one argument and
* a literal block. This version handles break jumps by returning their
* value if this is the appropriate place in the call stack to do so.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param arg0 the argument to pass
* @param block the literal block to pass
* @return the result of the call
*/
public abstract IRubyObject callIter(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg0, Block block);
/**
* Call the site's method against the target object passing two arguments and
* a literal block. This version handles break jumps by returning their
* value if this is the appropriate place in the call stack to do so.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param arg0 the first argument to pass
* @param arg1 the second argument to pass
* @param block the literal block to pass
* @return the result of the call
*/
public abstract IRubyObject callIter(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg0, IRubyObject arg1, Block block);
/**
* Call the site's method against the target object passing three arguments and
* a literal block. This version handles break jumps by returning their
* value if this is the appropriate place in the call stack to do so.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param arg0 the first argument to pass
* @param arg1 the second argument to pass
* @param arg2 the third argument to pass
* @param block the literal block to pass
* @return the result of the call
*/
public abstract IRubyObject callIter(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject arg0, IRubyObject arg1, IRubyObject arg2, Block block);
/**
* Call the site's method against the target object passing arguments and
* a literal block. This version handles break jumps by returning their
* value if this is the appropriate place in the call stack to do so.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param args the arguments to pass
* @param block the literal block to pass
* @return the result of the call
*/
public abstract IRubyObject callIter(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject[] args, Block block);
/**
* Call the site's method against the target object passing arguments and
* a literal block. This version handles break jumps by returning their
* value if this is the appropriate place in the call stack to do so.
*
* As a "varargs" method, this will use the length of the args array to
* dispatch to the correct arity call, rather than dispatching unconditionally
* to the IRubyObject[] path.
*
* @param context the ThreadContext for the current thread
* @param caller the caller, for visibility checks
* @param self the target object to call against
* @param args the arguments to pass
* @param block the literal block to pass
* @return the result of the call
*/
public abstract IRubyObject callVarargsIter(ThreadContext context, IRubyObject caller, IRubyObject self, IRubyObject[] args, Block block);
/**
* Produce a string representation of this CallSite, for informational purposes. Subclasses can override this to
* provide more information.
*
* @return an informational string representation of this CallSite
*/
public String toString() {
return "CallSite(\"" + methodName + "\"," + callType + ")";
}
}