Sha256: ff0569baa45de8e86a1b5f02ce37b23b418df15ab988bd152c0ae75ec0e9ae3e
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Size: 1.94 KB
Versions: 135
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Stored size: 1.94 KB
Contents
/**
* Copyright 2005-2007 Ye Zheng
* Distributed under the BSD License
*/
package com.xruby.runtime.lang;
class MethodCache {
private static int CACHE_SIZE = 0x800;
private static int CACHE_MASK = 0x7ff;
private CacheEntry[] cache = clearCache();
public void reset() {
if (!RubyRuntime.running) {
return;
}
for (int i = 0; i < CACHE_SIZE; i++) {
cache[i].klass = null;
cache[i].mid = null;
cache[i].method = null;
}
}
private CacheEntry[] clearCache() {
CacheEntry[] cache = new CacheEntry[CACHE_SIZE];
for (int i = 0; i < CACHE_SIZE; i++) {
cache[i] = new CacheEntry();
cache[i].klass = null;
cache[i].mid = null;
cache[i].method = null;
}
return cache;
}
private int cacheIndex(RubyClass c, RubyID id) {
return (((c.objectAddress() >> 3) ^ ((int)id.getId())) & CACHE_MASK);
}
public CacheEntry getMethod(RubyClass c, RubyID id) {
int index = cacheIndex(c, id);
return cache[index];
}
public void putMethod(RubyClass c, RubyID id, RubyMethod m) {
int index = cacheIndex(c, id);
cache[index].klass = c;
cache[index].mid = id;
cache[index].method = m;
}
public void removeMethod(RubyClass c, RubyID id) {
if (!RubyRuntime.running) {
return;
}
for (CacheEntry entry : cache) {
if (entry.mid == id && entry.klass == c) {
// FIXME: method table should be compared
entry.mid = null;
}
}
}
public void removeMethod(RubyID id) {
if (!RubyRuntime.running) {
return;
}
for (CacheEntry entry : cache) {
if (entry.mid == id) {
entry.mid = null;
}
}
}
public void removeClass(RubyClass c) {
if (!RubyRuntime.running) {
return;
}
for (CacheEntry entry : cache) {
if (entry.klass == c) {
entry.mid = null;
}
}
}
static class CacheEntry {
public RubyClass klass;
public RubyID mid;
public RubyMethod method;
}
}
Version data entries
135 entries across 135 versions & 2 rubygems