/*
***** BEGIN LICENSE BLOCK *****
* Version: EPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Eclipse 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/epl-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.
*
* Copyright (C) 2006-2007 Thomas E Enebo <enebo@acm.org>
* Copyright (C) 2006-2007 Charles 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
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***** END LICENSE BLOCK *****/
package org.jruby.runtime;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.jruby.runtime.callsite.LtCallSite;
import org.jruby.runtime.callsite.LeCallSite;
import org.jruby.runtime.callsite.MinusCallSite;
import org.jruby.runtime.callsite.MulCallSite;
import org.jruby.runtime.callsite.NormalCachingCallSite;
import org.jruby.runtime.callsite.GtCallSite;
import org.jruby.runtime.callsite.PlusCallSite;
import org.jruby.runtime.callsite.GeCallSite;
import org.jruby.RubyInstanceConfig;
import org.jruby.runtime.callsite.CmpCallSite;
import org.jruby.runtime.callsite.EqCallSite;
import org.jruby.runtime.callsite.BitAndCallSite;
import org.jruby.runtime.callsite.BitOrCallSite;
import org.jruby.runtime.callsite.FunctionalCachingCallSite;
import org.jruby.runtime.callsite.RespondToCallSite;
import org.jruby.runtime.callsite.ShiftLeftCallSite;
import org.jruby.runtime.callsite.ShiftRightCallSite;
import org.jruby.runtime.callsite.SuperCallSite;
import org.jruby.runtime.callsite.VariableCachingCallSite;
import org.jruby.runtime.callsite.XorCallSite;
import org.jruby.runtime.invokedynamic.MethodNames;
import org.jruby.util.log.Logger;
import org.jruby.util.log.LoggerFactory;
/**
*
* @author headius
*/
public class MethodIndex {
private static final boolean DEBUG = false;
private static final Logger LOG = LoggerFactory.getLogger("MethodIndex");
@Deprecated
public static final int NO_METHOD = MethodNames.DUMMY.ordinal();
@Deprecated
public static final int OP_EQUAL = MethodNames.OP_EQUAL.ordinal();
@Deprecated
public static final int EQL = MethodNames.EQL.ordinal();
@Deprecated
public static final int HASH = MethodNames.HASH.ordinal();
@Deprecated
public static final int OP_CMP = MethodNames.OP_CMP.ordinal();
@Deprecated
public static final int MAX_METHODS = MethodNames.values().length;
@Deprecated
public static final String[] METHOD_NAMES = {
"",
"==",
"eql?",
"hash",
"<=>"
};
public static final Set<String> FRAME_AWARE_METHODS = Collections.synchronizedSet(new HashSet<String>());
public static final Set<String> SCOPE_AWARE_METHODS = Collections.synchronizedSet(new HashSet<String>());
public static CallSite getCallSite(String name) {
// fast and safe respond_to? call site logic
if (name.equals("respond_to?")) return new RespondToCallSite();
// only use fast ops if we're not tracing
if (RubyInstanceConfig.FASTOPS_COMPILE_ENABLED &&
!(RubyInstanceConfig.FULL_TRACE_ENABLED)) return getFastFixnumOpsCallSite(name);
return new NormalCachingCallSite(name);
}
private static final Map<String, String> FIXNUM_OPS = new HashMap<String, String>();
private static final String[][] fastFixnumOps = {
{"+", "op_plus"},
{"-", "op_minus"},
{"*", "op_mul"},
{"==", "op_equal"},
{"<", "op_lt"},
{"<=", "op_le"},
{">", "op_gt"},
{">=", "op_ge"},
{"<=>", "op_cmp"},
{"&", "op_and"},
{"|", "op_or"},
{"^", "op_xor"},
{">>", "op_rshift"},
{"<<", "op_lshift"}
};
static {
for (String[] fastOp : fastFixnumOps) FIXNUM_OPS.put(fastOp[0], fastOp[1]);
}
private static final Map<String, String> FLOAT_OPS = new HashMap<String, String>();
private static final String[][] fastFloatOps = {
{"+", "op_plus"},
{"-", "op_minus"},
{"*", "op_mul"},
{"==", "op_equal"},
{"<", "op_lt"},
{"<=", "op_le"},
{">", "op_gt"},
{">=", "op_ge"},
{"<=>", "op_cmp"}
};
static {
for (String[] fastOp : fastFloatOps) FLOAT_OPS.put(fastOp[0], fastOp[1]);
}
public static boolean hasFastFixnumOps(String name) {
return FIXNUM_OPS.containsKey(name);
}
public static String getFastFixnumOpsMethod(String name) {
return FIXNUM_OPS.get(name);
}
public static CallSite getFastFixnumOpsCallSite(String name) {
if (name.equals("+")) {
return new PlusCallSite();
} else if (name.equals("-")) {
return new MinusCallSite();
} else if (name.equals("*")) {
return new MulCallSite();
} else if (name.equals("<")) {
return new LtCallSite();
} else if (name.equals("<=")) {
return new LeCallSite();
} else if (name.equals(">")) {
return new GtCallSite();
} else if (name.equals(">=")) {
return new GeCallSite();
} else if (name.equals("==")) {
return new EqCallSite();
} else if (name.equals("<=>")) {
return new CmpCallSite();
} else if (name.equals("&")) {
return new BitAndCallSite();
} else if (name.equals("|")) {
return new BitOrCallSite();
} else if (name.equals("^")) {
return new XorCallSite();
} else if (name.equals(">>")) {
return new ShiftRightCallSite();
} else if (name.equals("<<")) {
return new ShiftLeftCallSite();
}
return new NormalCachingCallSite(name);
}
public static boolean hasFastFloatOps(String name) {
return FLOAT_OPS.containsKey(name);
}
public static String getFastFloatOpsMethod(String name) {
return FLOAT_OPS.get(name);
}
public static CallSite getFastFloatOpsCallSite(String name) {
if (name.equals("+")) {
return new PlusCallSite();
} else if (name.equals("-")) {
return new MinusCallSite();
} else if (name.equals("*")) {
return new MulCallSite();
} else if (name.equals("<")) {
return new LtCallSite();
} else if (name.equals("<=")) {
return new LeCallSite();
} else if (name.equals(">")) {
return new GtCallSite();
} else if (name.equals(">=")) {
return new GeCallSite();
} else if (name.equals("==")) {
return new EqCallSite();
} else if (name.equals("<=>")) {
return new CmpCallSite();
}
return new NormalCachingCallSite(name);
}
public static CallSite getFunctionalCallSite(String name) {
return new FunctionalCachingCallSite(name);
}
public static CallSite getVariableCallSite(String name) {
return new VariableCachingCallSite(name);
}
public static CallSite getSuperCallSite() {
return new SuperCallSite();
}
public static void addFrameAwareMethods(String... methods) {
if (DEBUG) LOG.debug("Adding frame-aware method names: {}", Arrays.toString(methods));
FRAME_AWARE_METHODS.addAll(Arrays.asList(methods));
}
public static void addScopeAwareMethods(String... methods) {
if (DEBUG) LOG.debug("Adding scope-aware method names: {}", Arrays.toString(methods));
SCOPE_AWARE_METHODS.addAll(Arrays.asList(methods));
}
}