/*
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* Copyright 2014 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import "ZXAztecBinaryShiftToken.h"
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#import "ZXAztecSimpleToken.h"
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#import "ZXAztecToken.h"
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#import "ZXBitArray.h"
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@implementation ZXAztecToken
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- (id)initWithPrevious:(ZXAztecToken *)previous {
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if (self = [super init]) {
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_previous = previous;
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}
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return self;
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}
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+ (ZXAztecToken *)empty {
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return [[ZXAztecSimpleToken alloc] initWithPrevious:nil value:0 bitCount:0];
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}
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- (ZXAztecToken *)add:(int)value bitCount:(int)bitCount {
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return [[ZXAztecSimpleToken alloc] initWithPrevious:self value:value bitCount:bitCount];
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}
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- (ZXAztecToken *)addBinaryShift:(int)start byteCount:(int)byteCount {
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// int bitCount = (byteCount * 8) + (byteCount <= 31 ? 10 : byteCount <= 62 ? 20 : 21);
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return [[ZXAztecBinaryShiftToken alloc] initWithPrevious:self binaryShiftStart:start binaryShiftByteCount:byteCount];
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}
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- (void)appendTo:(ZXBitArray *)bitArray text:(ZXByteArray *)text {
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@throw [NSException exceptionWithName:NSInternalInconsistencyException
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reason:[NSString stringWithFormat:@"You must override %@ in a subclass", NSStringFromSelector(_cmd)]
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userInfo:nil];
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}
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@end
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