Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.ruby.runtime/src/com/oracle/truffle/ruby/runtime/core/array/ObjectArrayStore.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.array; import java.util.*; import com.oracle.truffle.ruby.runtime.*; /** * A store for an array of any objects. */ public final class ObjectArrayStore extends BaseArrayStore { private Object[] values; public ObjectArrayStore() { this(new Object[]{}); } public ObjectArrayStore(Object[] values) { this.values = values; size = values.length; capacity = values.length; } @Override public Object get(int normalisedIndex) { if (normalisedIndex >= size) { return NilPlaceholder.INSTANCE; } return values[normalisedIndex]; } @Override public ArrayStore getRange(int normalisedBegin, int normalisedExclusiveEnd) { if (normalisedBegin >= size) { return null; // Represents Nil } return new ObjectArrayStore(Arrays.copyOfRange(values, normalisedBegin, normalisedExclusiveEnd)); } @Override public void set(int normalisedIndex, Object value) throws GeneraliseArrayStoreException { if (normalisedIndex > size) { final int originalLength = size; createSpace(size, normalisedIndex - size + 1); Arrays.fill(values, originalLength, normalisedIndex, NilPlaceholder.INSTANCE); values[normalisedIndex] = value; } else if (normalisedIndex == size) { push(value); } else { values[normalisedIndex] = value; } } @Override public void setRangeSingle(int normalisedBegin, int normalisedExclusiveEnd, Object value) throws GeneraliseArrayStoreException { // Is the range the whole array? if (normalisedBegin == 0 && normalisedExclusiveEnd == size) { // Reset length and set the value. size = 1; values[0] = value; } else { // Delete the range, except for the first value. deleteSpace(normalisedBegin + 1, normalisedExclusiveEnd - normalisedBegin - 1); // Set the value we left in. System.err.println(normalisedBegin + " in " + size + " with " + values.length); values[normalisedBegin] = value; } } @Override public void setRangeArray(int normalisedBegin, int normalisedExclusiveEnd, ArrayStore other) throws GeneraliseArrayStoreException { setRangeArray(normalisedBegin, normalisedExclusiveEnd, (ObjectArrayStore) other.generalizeFor(null)); } public void setRangeArray(int normalisedBegin, int normalisedExclusiveEnd, ObjectArrayStore other) { setRangeArrayMatchingTypes(normalisedBegin, normalisedExclusiveEnd, other.values, other.size); } @Override public void insert(int normalisedIndex, Object value) throws GeneraliseArrayStoreException { if (normalisedIndex > size) { final int originalLength = size; createSpaceAtEnd(normalisedIndex - size + 1); Arrays.fill(values, originalLength, normalisedIndex, NilPlaceholder.INSTANCE); values[normalisedIndex] = value; } else { createSpace(normalisedIndex, 1); values[normalisedIndex] = value; } } @Override public void push(Object value) throws GeneraliseArrayStoreException { createSpaceAtEnd(1); values[size - 1] = value; } @Override public Object deleteAt(int normalisedIndex) { if (normalisedIndex >= size) { return NilPlaceholder.INSTANCE; } final Object value = values[normalisedIndex]; deleteSpace(normalisedIndex, 1); return value; } @Override public ArrayStore dup() { return new ObjectArrayStore(Arrays.copyOf(values, size)); } @Override public boolean contains(Object value) { for (int n = 0; n < size; n++) { if (values[n].equals(value)) { return true; } } return false; } @Override public ObjectArrayStore generalizeFor(Object type) { return this; } @Override public Object getIndicativeValue() { return null; } @Override protected void setCapacityByCopying(int newCapacity) { values = Arrays.copyOf(values, newCapacity); capacity = values.length; } @Override protected void setCapacityWithNewArray(int newCapacity) { values = new Object[newCapacity]; capacity = values.length; } @Override protected Object getValuesArrayObject() { return values; } public Object[] getValues() { return values; } @Override public Object[] toObjectArray() { if (values.length == size) { return values; } else { return Arrays.copyOf(values, size); } } @Override public boolean equals(ArrayStore other) { if (other instanceof ObjectArrayStore) { return equals((ObjectArrayStore) other); } else { return super.equals(other); } } public boolean equals(ObjectArrayStore other) { if (other == null) { return false; } else if (other == this) { return true; } else if (other.size != size) { return false; } else if (other.capacity == capacity) { return Arrays.equals(other.values, values); } else { for (int n = 0; n < size; n++) { if (!other.values[n].equals(values[n])) { return false; } } return true; } } }