Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.ruby.runtime/src/com/oracle/truffle/ruby/runtime/core/RubyHash.java @ 13514:0fbee3eb71f0
Ruby: import project.
author | Chris Seaton <chris.seaton@oracle.com> |
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date | Mon, 06 Jan 2014 17:12:09 +0000 |
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/* * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This * code is released under a tri EPL/GPL/LGPL license. You can use it, * redistribute it and/or modify it under the terms of the: * * Eclipse Public License version 1.0 * GNU General Public License version 2 * GNU Lesser General Public License version 2.1 */ package com.oracle.truffle.ruby.runtime.core; import java.util.*; import com.oracle.truffle.api.CompilerDirectives.CompilationFinal; import com.oracle.truffle.ruby.runtime.objects.*; /** * Represents the Ruby {@code Hash} class. */ public class RubyHash extends RubyObject { /** * The class from which we create the object that is {@code Hash}. A subclass of * {@link RubyClass} so that we can override {@link #newInstance} and allocate a * {@link RubyHash} rather than a normal {@link RubyBasicObject}. */ public static class RubyHashClass extends RubyClass { public RubyHashClass(RubyClass objectClass) { super(null, objectClass, "Hash"); } @Override public RubyBasicObject newInstance() { return new RubyHash(this); } } public final Map<Object, Object> storage = new LinkedHashMap<>(); @CompilationFinal public RubyProc defaultBlock = null; public RubyHash(RubyClass rubyClass, RubyProc defaultBlock) { super(rubyClass); initialize(defaultBlock); } public RubyHash(RubyClass rubyClass) { super(rubyClass); } public void initialize(RubyProc setDefaultBlock) { defaultBlock = setDefaultBlock; } @Override public Object dup() { final RubyHash newHash = new RubyHash(rubyClass); newHash.setInstanceVariables(getInstanceVariables()); newHash.storage.putAll(storage); return newHash; } public void put(Object key, Object value) { checkFrozen(); storage.put(key, value); } public Object get(Object key) { return storage.get(key); } public Map<Object, Object> getMap() { return storage; } @Override public String toString() { final StringBuilder builder = new StringBuilder(); builder.append("{"); for (Map.Entry<Object, Object> entry : storage.entrySet()) { if (builder.length() > 1) { builder.append(", "); } builder.append(entry.getKey().toString()); builder.append("=>"); builder.append(entry.getValue().toString()); } builder.append("}"); return builder.toString(); } @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((storage == null) ? 0 : storage.hashCode()); return result; } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (obj == null) { return false; } if (!(obj instanceof RubyHash)) { return false; } RubyHash other = (RubyHash) obj; if (storage == null) { if (other.storage != null) { return false; } } else if (!storage.equals(other.storage)) { return false; } return true; } }