99 lines
3.9 KiB
Java
99 lines
3.9 KiB
Java
// Copyright (c) 2013-2014 Sandstorm Development Group, Inc. and contributors
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// Licensed under the MIT License:
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package org.capnproto;
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public final class AnyPointer {
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public static final class Factory implements PointerFactory<Builder, Reader> {
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public final Reader fromPointerReader(SegmentReader segment, int pointer, int nestingLimit) {
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return new Reader(segment, pointer, nestingLimit);
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}
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public final Builder fromPointerBuilder(SegmentBuilder segment, int pointer) {
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return new Builder(segment, pointer);
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}
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public final Builder initFromPointerBuilder(SegmentBuilder segment, int pointer, int elementCount) {
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Builder result = new Builder(segment, pointer);
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result.clear();
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return result;
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}
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}
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public static final Factory factory = new Factory();
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public final static class Reader {
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final SegmentReader segment;
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final int pointer; // offset in words
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final int nestingLimit;
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public Reader(SegmentReader segment, int pointer, int nestingLimit) {
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this.segment = segment;
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this.pointer = pointer;
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this.nestingLimit = nestingLimit;
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}
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public final boolean isNull() {
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return WirePointer.isNull(this.segment.buffer.getLong(this.pointer * Constants.BYTES_PER_WORD));
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}
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public final <T> T getAs(FromPointerReader<T> factory) {
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return factory.fromPointerReader(this.segment, this.pointer, this.nestingLimit);
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}
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}
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public static final class Builder {
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final SegmentBuilder segment;
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final int pointer;
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public Builder(SegmentBuilder segment, int pointer) {
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this.segment = segment;
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this.pointer = pointer;
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}
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public final boolean isNull() {
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return WirePointer.isNull(this.segment.buffer.getLong(this.pointer * Constants.BYTES_PER_WORD));
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}
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public final <T> T getAs(FromPointerBuilder<T> factory) {
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return factory.fromPointerBuilder(this.segment, this.pointer);
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}
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public final <T> T initAs(FromPointerBuilder<T> factory) {
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return factory.initFromPointerBuilder(this.segment, this.pointer, 0);
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}
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public final <T> T initAs(FromPointerBuilder<T> factory, int elementCount) {
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return factory.initFromPointerBuilder(this.segment, this.pointer, elementCount);
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}
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public final <T, U> void setAs(SetPointerBuilder<T, U> factory, U reader) {
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factory.setPointerBuilder(this.segment, this.pointer, reader);
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}
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public final Reader asReader() {
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return new Reader(segment, pointer, java.lang.Integer.MAX_VALUE);
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}
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public final void clear() {
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WireHelpers.zeroObject(this.segment, this.pointer);
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this.segment.buffer.putLong(this.pointer * 8, 0L);
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}
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}
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}
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