aboutsummaryrefslogtreecommitdiffstats
path: root/native/jni/src
diff options
context:
space:
mode:
Diffstat (limited to 'native/jni/src')
-rw-r--r--native/jni/src/suggest/core/dictionary/dictionary.cpp16
-rw-r--r--native/jni/src/suggest/core/policy/dictionary_structure_with_buffer_policy.h4
-rw-r--r--native/jni/src/suggest/core/session/prev_words_info.h47
-rw-r--r--native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.cpp14
-rw-r--r--native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.h5
-rw-r--r--native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.cpp14
-rw-r--r--native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h4
-rw-r--r--native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.cpp14
-rw-r--r--native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.h4
-rw-r--r--native/jni/src/suggest/policyimpl/dictionary/utils/trie_map.cpp37
-rw-r--r--native/jni/src/suggest/policyimpl/dictionary/utils/trie_map.h121
11 files changed, 204 insertions, 76 deletions
diff --git a/native/jni/src/suggest/core/dictionary/dictionary.cpp b/native/jni/src/suggest/core/dictionary/dictionary.cpp
index 92f5c1713..d62573970 100644
--- a/native/jni/src/suggest/core/dictionary/dictionary.cpp
+++ b/native/jni/src/suggest/core/dictionary/dictionary.cpp
@@ -92,7 +92,11 @@ void Dictionary::getPredictions(const PrevWordsInfo *const prevWordsInfo,
TimeKeeper::setCurrentTime();
NgramListenerForPrediction listener(prevWordsInfo, outSuggestionResults,
mDictionaryStructureWithBufferPolicy.get());
- mDictionaryStructureWithBufferPolicy->iterateNgramEntries(prevWordsInfo, &listener);
+ int prevWordsPtNodePos[MAX_PREV_WORD_COUNT_FOR_N_GRAM];
+ prevWordsInfo->getPrevWordsTerminalPtNodePos(
+ mDictionaryStructureWithBufferPolicy.get(), prevWordsPtNodePos,
+ true /* tryLowerCaseSearch */);
+ mDictionaryStructureWithBufferPolicy->iterateNgramEntries(prevWordsPtNodePos, &listener);
}
int Dictionary::getProbability(const int *word, int length) const {
@@ -111,7 +115,15 @@ int Dictionary::getNgramProbability(const PrevWordsInfo *const prevWordsInfo, co
int nextWordPos = mDictionaryStructureWithBufferPolicy->getTerminalPtNodePositionOfWord(word,
length, false /* forceLowerCaseSearch */);
if (NOT_A_DICT_POS == nextWordPos) return NOT_A_PROBABILITY;
- return getDictionaryStructurePolicy()->getProbabilityOfPtNode(prevWordsInfo, nextWordPos);
+ if (!prevWordsInfo) {
+ return getDictionaryStructurePolicy()->getProbabilityOfPtNode(
+ nullptr /* prevWordsPtNodePos */, nextWordPos);
+ }
+ int prevWordsPtNodePos[MAX_PREV_WORD_COUNT_FOR_N_GRAM];
+ prevWordsInfo->getPrevWordsTerminalPtNodePos(
+ mDictionaryStructureWithBufferPolicy.get(), prevWordsPtNodePos,
+ true /* tryLowerCaseSearch */);
+ return getDictionaryStructurePolicy()->getProbabilityOfPtNode(prevWordsPtNodePos, nextWordPos);
}
bool Dictionary::addUnigramEntry(const int *const word, const int length,
diff --git a/native/jni/src/suggest/core/policy/dictionary_structure_with_buffer_policy.h b/native/jni/src/suggest/core/policy/dictionary_structure_with_buffer_policy.h
index 81e38f78e..7e3bf3ff6 100644
--- a/native/jni/src/suggest/core/policy/dictionary_structure_with_buffer_policy.h
+++ b/native/jni/src/suggest/core/policy/dictionary_structure_with_buffer_policy.h
@@ -59,10 +59,10 @@ class DictionaryStructureWithBufferPolicy {
virtual int getProbability(const int unigramProbability,
const int bigramProbability) const = 0;
- virtual int getProbabilityOfPtNode(const PrevWordsInfo *const prevWordsInfo,
+ virtual int getProbabilityOfPtNode(const int *const prevWordsPtNodePos,
const int nodePos) const = 0;
- virtual void iterateNgramEntries(const PrevWordsInfo *const prevWordsInfo,
+ virtual void iterateNgramEntries(const int *const prevWordsPtNodePos,
NgramListener *const listener) const = 0;
virtual int getShortcutPositionOfPtNode(const int nodePos) const = 0;
diff --git a/native/jni/src/suggest/core/session/prev_words_info.h b/native/jni/src/suggest/core/session/prev_words_info.h
index 76276f528..e44e876e9 100644
--- a/native/jni/src/suggest/core/session/prev_words_info.h
+++ b/native/jni/src/suggest/core/session/prev_words_info.h
@@ -90,13 +90,6 @@ class PrevWordsInfo {
}
}
- BinaryDictionaryBigramsIterator getBigramsIteratorForPrediction(
- const DictionaryStructureWithBufferPolicy *const dictStructurePolicy) const {
- return getBigramsIteratorForWordWithTryingLowerCaseSearch(
- dictStructurePolicy, mPrevWordCodePoints[0], mPrevWordCodePointCount[0],
- mIsBeginningOfSentence[0]);
- }
-
// n is 1-indexed.
const int *getNthPrevWordCodePoints(const int n) const {
if (n <= 0 || n > MAX_PREV_WORD_COUNT_FOR_N_GRAM) {
@@ -154,46 +147,6 @@ class PrevWordsInfo {
codePoints, codePointCount, true /* forceLowerCaseSearch */);
}
- static BinaryDictionaryBigramsIterator getBigramsIteratorForWordWithTryingLowerCaseSearch(
- const DictionaryStructureWithBufferPolicy *const dictStructurePolicy,
- const int *const wordCodePoints, const int wordCodePointCount,
- const bool isBeginningOfSentence) {
- if (!dictStructurePolicy || !wordCodePoints || wordCodePointCount > MAX_WORD_LENGTH) {
- return BinaryDictionaryBigramsIterator();
- }
- int codePoints[MAX_WORD_LENGTH];
- int codePointCount = wordCodePointCount;
- memmove(codePoints, wordCodePoints, sizeof(int) * codePointCount);
- if (isBeginningOfSentence) {
- codePointCount = CharUtils::attachBeginningOfSentenceMarker(codePoints,
- codePointCount, MAX_WORD_LENGTH);
- if (codePointCount <= 0) {
- return BinaryDictionaryBigramsIterator();
- }
- }
- BinaryDictionaryBigramsIterator bigramsIt = getBigramsIteratorForWord(dictStructurePolicy,
- codePoints, codePointCount, false /* forceLowerCaseSearch */);
- // getBigramsIteratorForWord returns an empty iterator if this word isn't in the dictionary
- // or has no bigrams.
- if (bigramsIt.hasNext()) {
- return bigramsIt;
- }
- // If no bigrams for this exact word, search again in lower case.
- return getBigramsIteratorForWord(dictStructurePolicy, codePoints,
- codePointCount, true /* forceLowerCaseSearch */);
- }
-
- static BinaryDictionaryBigramsIterator getBigramsIteratorForWord(
- const DictionaryStructureWithBufferPolicy *const dictStructurePolicy,
- const int *wordCodePoints, const int wordCodePointCount,
- const bool forceLowerCaseSearch) {
- if (!wordCodePoints || wordCodePointCount <= 0) return BinaryDictionaryBigramsIterator();
- const int terminalPtNodePos = dictStructurePolicy->getTerminalPtNodePositionOfWord(
- wordCodePoints, wordCodePointCount, forceLowerCaseSearch);
- if (NOT_A_DICT_POS == terminalPtNodePos) return BinaryDictionaryBigramsIterator();
- return dictStructurePolicy->getBigramsIteratorOfPtNode(terminalPtNodePos);
- }
-
void clear() {
for (size_t i = 0; i < NELEMS(mPrevWordCodePoints); ++i) {
mPrevWordCodePointCount[i] = 0;
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.cpp
index 4b834a09d..994c42505 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.cpp
@@ -132,7 +132,7 @@ int Ver4PatriciaTriePolicy::getProbability(const int unigramProbability,
}
}
-int Ver4PatriciaTriePolicy::getProbabilityOfPtNode(const PrevWordsInfo *const prevWordsInfo,
+int Ver4PatriciaTriePolicy::getProbabilityOfPtNode(const int *const prevWordsPtNodePos,
const int ptNodePos) const {
if (ptNodePos == NOT_A_DICT_POS) {
return NOT_A_PROBABILITY;
@@ -141,9 +141,9 @@ int Ver4PatriciaTriePolicy::getProbabilityOfPtNode(const PrevWordsInfo *const pr
if (ptNodeParams.isDeleted() || ptNodeParams.isBlacklisted() || ptNodeParams.isNotAWord()) {
return NOT_A_PROBABILITY;
}
- if (prevWordsInfo) {
+ if (prevWordsPtNodePos) {
BinaryDictionaryBigramsIterator bigramsIt =
- prevWordsInfo->getBigramsIteratorForPrediction(this /* dictStructurePolicy */);
+ getBigramsIteratorOfPtNode(prevWordsPtNodePos[0]);
while (bigramsIt.hasNext()) {
bigramsIt.next();
if (bigramsIt.getBigramPos() == ptNodePos
@@ -156,10 +156,12 @@ int Ver4PatriciaTriePolicy::getProbabilityOfPtNode(const PrevWordsInfo *const pr
return getProbability(ptNodeParams.getProbability(), NOT_A_PROBABILITY);
}
-void Ver4PatriciaTriePolicy::iterateNgramEntries(const PrevWordsInfo *const prevWordsInfo,
+void Ver4PatriciaTriePolicy::iterateNgramEntries(const int *const prevWordsPtNodePos,
NgramListener *const listener) const {
- BinaryDictionaryBigramsIterator bigramsIt = prevWordsInfo->getBigramsIteratorForPrediction(
- this /* dictStructurePolicy */);
+ if (!prevWordsPtNodePos) {
+ return;
+ }
+ BinaryDictionaryBigramsIterator bigramsIt = getBigramsIteratorOfPtNode(prevWordsPtNodePos[0]);
while (bigramsIt.hasNext()) {
bigramsIt.next();
listener->onVisitEntry(bigramsIt.getProbability(), bigramsIt.getBigramPos());
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.h b/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.h
index e61c060e8..ff69de7c0 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.h
@@ -90,10 +90,9 @@ class Ver4PatriciaTriePolicy : public DictionaryStructureWithBufferPolicy {
int getProbability(const int unigramProbability, const int bigramProbability) const;
- int getProbabilityOfPtNode(const PrevWordsInfo *const prevWordsInfo,
- const int ptNodePos) const;
+ int getProbabilityOfPtNode(const int *const prevWordsPtNodePos, const int ptNodePos) const;
- void iterateNgramEntries(const PrevWordsInfo *const prevWordsInfo,
+ void iterateNgramEntries(const int *const prevWordsPtNodePos,
NgramListener *const listener) const;
int getShortcutPositionOfPtNode(const int ptNodePos) const;
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.cpp
index 6f02ff363..53415aeb6 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.cpp
@@ -297,7 +297,7 @@ int PatriciaTriePolicy::getProbability(const int unigramProbability,
}
}
-int PatriciaTriePolicy::getProbabilityOfPtNode(const PrevWordsInfo *const prevWordsInfo,
+int PatriciaTriePolicy::getProbabilityOfPtNode(const int *const prevWordsPtNodePos,
const int ptNodePos) const {
if (ptNodePos == NOT_A_DICT_POS) {
return NOT_A_PROBABILITY;
@@ -310,9 +310,9 @@ int PatriciaTriePolicy::getProbabilityOfPtNode(const PrevWordsInfo *const prevWo
// for shortcuts).
return NOT_A_PROBABILITY;
}
- if (prevWordsInfo) {
+ if (prevWordsPtNodePos) {
BinaryDictionaryBigramsIterator bigramsIt =
- prevWordsInfo->getBigramsIteratorForPrediction(this /* dictStructurePolicy */);
+ getBigramsIteratorOfPtNode(prevWordsPtNodePos[0]);
while (bigramsIt.hasNext()) {
bigramsIt.next();
if (bigramsIt.getBigramPos() == ptNodePos
@@ -325,10 +325,12 @@ int PatriciaTriePolicy::getProbabilityOfPtNode(const PrevWordsInfo *const prevWo
return getProbability(ptNodeParams.getProbability(), NOT_A_PROBABILITY);
}
-void PatriciaTriePolicy::iterateNgramEntries(const PrevWordsInfo *const prevWordsInfo,
+void PatriciaTriePolicy::iterateNgramEntries(const int *const prevWordsPtNodePos,
NgramListener *const listener) const {
- BinaryDictionaryBigramsIterator bigramsIt = prevWordsInfo->getBigramsIteratorForPrediction(
- this /* dictStructurePolicy */);
+ if (!prevWordsPtNodePos) {
+ return;
+ }
+ BinaryDictionaryBigramsIterator bigramsIt = getBigramsIteratorOfPtNode(prevWordsPtNodePos[0]);
while (bigramsIt.hasNext()) {
bigramsIt.next();
listener->onVisitEntry(bigramsIt.getProbability(), bigramsIt.getBigramPos());
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h
index a3b22206c..07cb72b23 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h
@@ -63,9 +63,9 @@ class PatriciaTriePolicy : public DictionaryStructureWithBufferPolicy {
int getProbability(const int unigramProbability, const int bigramProbability) const;
- int getProbabilityOfPtNode(const PrevWordsInfo *const prevWordsInfo, const int ptNodePos) const;
+ int getProbabilityOfPtNode(const int *const prevWordsPtNodePos, const int ptNodePos) const;
- void iterateNgramEntries(const PrevWordsInfo *const prevWordsInfo,
+ void iterateNgramEntries(const int *const prevWordsPtNodePos,
NgramListener *const listener) const;
int getShortcutPositionOfPtNode(const int ptNodePos) const;
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.cpp
index 23bbbbde5..22f7e1182 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.cpp
@@ -122,7 +122,7 @@ int Ver4PatriciaTriePolicy::getProbability(const int unigramProbability,
}
}
-int Ver4PatriciaTriePolicy::getProbabilityOfPtNode(const PrevWordsInfo *const prevWordsInfo,
+int Ver4PatriciaTriePolicy::getProbabilityOfPtNode(const int *const prevWordsPtNodePos,
const int ptNodePos) const {
if (ptNodePos == NOT_A_DICT_POS) {
return NOT_A_PROBABILITY;
@@ -131,9 +131,9 @@ int Ver4PatriciaTriePolicy::getProbabilityOfPtNode(const PrevWordsInfo *const pr
if (ptNodeParams.isDeleted() || ptNodeParams.isBlacklisted() || ptNodeParams.isNotAWord()) {
return NOT_A_PROBABILITY;
}
- if (prevWordsInfo) {
+ if (prevWordsPtNodePos) {
BinaryDictionaryBigramsIterator bigramsIt =
- prevWordsInfo->getBigramsIteratorForPrediction(this /* dictStructurePolicy */);
+ getBigramsIteratorOfPtNode(prevWordsPtNodePos[0]);
while (bigramsIt.hasNext()) {
bigramsIt.next();
if (bigramsIt.getBigramPos() == ptNodePos
@@ -146,10 +146,12 @@ int Ver4PatriciaTriePolicy::getProbabilityOfPtNode(const PrevWordsInfo *const pr
return getProbability(ptNodeParams.getProbability(), NOT_A_PROBABILITY);
}
-void Ver4PatriciaTriePolicy::iterateNgramEntries(const PrevWordsInfo *const prevWordsInfo,
+void Ver4PatriciaTriePolicy::iterateNgramEntries(const int *const prevWordsPtNodePos,
NgramListener *const listener) const {
- BinaryDictionaryBigramsIterator bigramsIt = prevWordsInfo->getBigramsIteratorForPrediction(
- this /* dictStructurePolicy */);
+ if (!prevWordsPtNodePos) {
+ return;
+ }
+ BinaryDictionaryBigramsIterator bigramsIt = getBigramsIteratorOfPtNode(prevWordsPtNodePos[0]);
while (bigramsIt.hasNext()) {
bigramsIt.next();
listener->onVisitEntry(bigramsIt.getProbability(), bigramsIt.getBigramPos());
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.h
index 18384546f..c5b6a80c0 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.h
@@ -72,9 +72,9 @@ class Ver4PatriciaTriePolicy : public DictionaryStructureWithBufferPolicy {
int getProbability(const int unigramProbability, const int bigramProbability) const;
- int getProbabilityOfPtNode(const PrevWordsInfo *const prevWordsInfo, const int ptNodePos) const;
+ int getProbabilityOfPtNode(const int *const prevWordsPtNodePos, const int ptNodePos) const;
- void iterateNgramEntries(const PrevWordsInfo *const prevWordsInfo,
+ void iterateNgramEntries(const int *const prevWordsPtNodePos,
NgramListener *const listener) const;
int getShortcutPositionOfPtNode(const int ptNodePos) const;
diff --git a/native/jni/src/suggest/policyimpl/dictionary/utils/trie_map.cpp b/native/jni/src/suggest/policyimpl/dictionary/utils/trie_map.cpp
index a7d86f9ae..c70047638 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/utils/trie_map.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/utils/trie_map.cpp
@@ -98,6 +98,43 @@ bool TrieMap::put(const int key, const uint64_t value, const int bitmapEntryInde
return putInternal(unsignedKey, value, getBitShuffledKey(unsignedKey), bitmapEntryIndex,
readEntry(bitmapEntryIndex), 0 /* level */);
}
+/**
+ * Iterate next entry in a certain level.
+ *
+ * @param iterationState the iteration state that will be read and updated in this method.
+ * @param outKey the output key
+ * @return Result instance. mIsValid is false when all entries are iterated.
+ */
+const TrieMap::Result TrieMap::iterateNext(std::vector<TableIterationState> *const iterationState,
+ int *const outKey) const {
+ while (!iterationState->empty()) {
+ TableIterationState &state = iterationState->back();
+ if (state.mTableSize <= state.mCurrentIndex) {
+ // Move to parent.
+ iterationState->pop_back();
+ } else {
+ const int entryIndex = state.mTableIndex + state.mCurrentIndex;
+ state.mCurrentIndex += 1;
+ const Entry entry = readEntry(entryIndex);
+ if (entry.isBitmapEntry()) {
+ // Move to child.
+ iterationState->emplace_back(popCount(entry.getBitmap()), entry.getTableIndex());
+ } else {
+ if (outKey) {
+ *outKey = entry.getKey();
+ }
+ if (!entry.hasTerminalLink()) {
+ return Result(entry.getValue(), true, INVALID_INDEX);
+ }
+ const int valueEntryIndex = entry.getValueEntryIndex();
+ const Entry valueEntry = readEntry(valueEntryIndex);
+ return Result(valueEntry.getValueOfValueEntry(), true, valueEntryIndex + 1);
+ }
+ }
+ }
+ // Visited all entries.
+ return Result(0, false, INVALID_INDEX);
+}
/**
* Shuffle bits of the key in the fixed order.
diff --git a/native/jni/src/suggest/policyimpl/dictionary/utils/trie_map.h b/native/jni/src/suggest/policyimpl/dictionary/utils/trie_map.h
index 2a9051f98..b5bcc3bc8 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/utils/trie_map.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/utils/trie_map.h
@@ -44,6 +44,117 @@ class TrieMap {
mNextLevelBitmapEntryIndex(nextLevelBitmapEntryIndex) {}
};
+ /**
+ * Struct to record iteration state in a table.
+ */
+ struct TableIterationState {
+ int mTableSize;
+ int mTableIndex;
+ int mCurrentIndex;
+
+ TableIterationState(const int tableSize, const int tableIndex)
+ : mTableSize(tableSize), mTableIndex(tableIndex), mCurrentIndex(0) {}
+ };
+
+ class TrieMapRange;
+ class TrieMapIterator {
+ public:
+ class IterationResult {
+ public:
+ IterationResult(const TrieMap *const trieMap, const int key, const uint64_t value,
+ const int nextLeveBitmapEntryIndex)
+ : mTrieMap(trieMap), mKey(key), mValue(value),
+ mNextLevelBitmapEntryIndex(nextLeveBitmapEntryIndex) {}
+
+ const TrieMapRange getEntriesInNextLevel() const {
+ return TrieMapRange(mTrieMap, mNextLevelBitmapEntryIndex);
+ }
+
+ bool hasNextLevelMap() const {
+ return mNextLevelBitmapEntryIndex != INVALID_INDEX;
+ }
+
+ AK_FORCE_INLINE int key() const {
+ return mKey;
+ }
+
+ AK_FORCE_INLINE uint64_t value() const {
+ return mValue;
+ }
+
+ private:
+ const TrieMap *const mTrieMap;
+ const int mKey;
+ const uint64_t mValue;
+ const int mNextLevelBitmapEntryIndex;
+ };
+
+ TrieMapIterator(const TrieMap *const trieMap, const int bitmapEntryIndex)
+ : mTrieMap(trieMap), mStateStack(), mBaseBitmapEntryIndex(bitmapEntryIndex),
+ mKey(0), mValue(0), mIsValid(false), mNextLevelBitmapEntryIndex(INVALID_INDEX) {
+ if (!trieMap) {
+ return;
+ }
+ const Entry bitmapEntry = mTrieMap->readEntry(mBaseBitmapEntryIndex);
+ mStateStack.emplace_back(
+ mTrieMap->popCount(bitmapEntry.getBitmap()), bitmapEntry.getTableIndex());
+ this->operator++();
+ }
+
+ const IterationResult operator*() const {
+ return IterationResult(mTrieMap, mKey, mValue, mNextLevelBitmapEntryIndex);
+ }
+
+ bool operator!=(const TrieMapIterator &other) const {
+ // Caveat: This works only for for loops.
+ return mIsValid || other.mIsValid;
+ }
+
+ const TrieMapIterator &operator++() {
+ const Result result = mTrieMap->iterateNext(&mStateStack, &mKey);
+ mValue = result.mValue;
+ mIsValid = result.mIsValid;
+ mNextLevelBitmapEntryIndex = result.mNextLevelBitmapEntryIndex;
+ return *this;
+ }
+
+ private:
+ DISALLOW_DEFAULT_CONSTRUCTOR(TrieMapIterator);
+ DISALLOW_ASSIGNMENT_OPERATOR(TrieMapIterator);
+
+ const TrieMap *const mTrieMap;
+ std::vector<TrieMap::TableIterationState> mStateStack;
+ const int mBaseBitmapEntryIndex;
+ int mKey;
+ uint64_t mValue;
+ bool mIsValid;
+ int mNextLevelBitmapEntryIndex;
+ };
+
+ /**
+ * Class to support iterating entries in TrieMap by range base for loops.
+ */
+ class TrieMapRange {
+ public:
+ TrieMapRange(const TrieMap *const trieMap, const int bitmapEntryIndex)
+ : mTrieMap(trieMap), mBaseBitmapEntryIndex(bitmapEntryIndex) {};
+
+ TrieMapIterator begin() const {
+ return TrieMapIterator(mTrieMap, mBaseBitmapEntryIndex);
+ }
+
+ const TrieMapIterator end() const {
+ return TrieMapIterator(nullptr, INVALID_INDEX);
+ }
+
+ private:
+ DISALLOW_DEFAULT_CONSTRUCTOR(TrieMapRange);
+ DISALLOW_ASSIGNMENT_OPERATOR(TrieMapRange);
+
+ const TrieMap *const mTrieMap;
+ const int mBaseBitmapEntryIndex;
+ };
+
static const int INVALID_INDEX;
static const uint64_t MAX_VALUE;
@@ -73,6 +184,14 @@ class TrieMap {
bool put(const int key, const uint64_t value, const int bitmapEntryIndex);
+ const TrieMapRange getEntriesInRootLevel() const {
+ return getEntriesInSpecifiedLevel(ROOT_BITMAP_ENTRY_INDEX);
+ }
+
+ const TrieMapRange getEntriesInSpecifiedLevel(const int bitmapEntryIndex) const {
+ return TrieMapRange(this, bitmapEntryIndex);
+ }
+
private:
DISALLOW_COPY_AND_ASSIGN(TrieMap);
@@ -171,6 +290,8 @@ class TrieMap {
bool addNewEntryByExpandingTable(const uint32_t key, const uint64_t value,
const int tableIndex, const uint32_t bitmap, const int bitmapEntryIndex,
const int label);
+ const Result iterateNext(std::vector<TableIterationState> *const iterationState,
+ int *const outKey) const;
AK_FORCE_INLINE const Entry readEntry(const int entryIndex) const {
return Entry(readField0(entryIndex), readField1(entryIndex));