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Add empty PtNode checking for PatriciaTriePolicy.

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Bug: 9503570
Change-Id: I784d29c307c1040699fa0aadfc6a47d97f03ffe4
This commit is contained in:
Keisuke Kuroyanagi 2013-09-26 11:19:04 +09:00
parent 009dcac33f
commit 9155eec0d9
4 changed files with 18 additions and 4 deletions
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2
native/jni/src/suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.cpp
View file

@ -325,7 +325,7 @@ int DynamicBigramListPolicy::followBigramLinkAndGetCurrentBigramPtNodePos(
nodeReader.fetchNodeInfoInBufferFromPtNodePos(currentPos); nodeReader.fetchNodeInfoInBufferFromPtNodePos(currentPos);
bigramLinkCount++; bigramLinkCount++;
if (bigramLinkCount > CONTINUING_BIGRAM_LINK_COUNT_LIMIT) { if (bigramLinkCount > CONTINUING_BIGRAM_LINK_COUNT_LIMIT) {
AKLOGE("Bigram link is invalid. start position: %d", bigramPos); AKLOGE("Bigram link is invalid. start position: %d", originalBigramPos);
ASSERT(false); ASSERT(false);
return NOT_A_DICT_POS; return NOT_A_DICT_POS;
} }

2
native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_helper.h
View file

@ -263,7 +263,7 @@ class DynamicPatriciaTrieReadingHelper {
AK_FORCE_INLINE void pushReadingStateToStack() { AK_FORCE_INLINE void pushReadingStateToStack() {
if (mReadingStateStack.size() > MAX_READING_STATE_STACK_SIZE) { if (mReadingStateStack.size() > MAX_READING_STATE_STACK_SIZE) {
AKLOGI("Reading state stack overflow. Max size: %d", MAX_READING_STATE_STACK_SIZE); AKLOGI("Reading state stack overflow. Max size: %zd", MAX_READING_STATE_STACK_SIZE);
ASSERT(false); ASSERT(false);
mIsError = true; mIsError = true;
mReadingState.mPos = NOT_A_DICT_POS; mReadingState.mPos = NOT_A_DICT_POS;

5
native/jni/src/suggest/policyimpl/dictionary/patricia_trie_policy.cpp
View file

@ -416,6 +416,11 @@ int PatriciaTriePolicy::createAndGetLeavingChildNode(const DicNode *const dicNod
if (PatriciaTrieReadingUtils::hasBigrams(flags)) { if (PatriciaTrieReadingUtils::hasBigrams(flags)) {
getBigramsStructurePolicy()->skipAllBigrams(&pos); getBigramsStructurePolicy()->skipAllBigrams(&pos);
} }
if (mergedNodeCodePointCount <= 0) {
AKLOGE("Empty PtNode is not allowed. Code point count: %d", mergedNodeCodePointCount);
ASSERT(false);
return pos;
}
childDicNodes->pushLeavingChild(dicNode, ptNodePos, childrenPos, probability, childDicNodes->pushLeavingChild(dicNode, ptNodePos, childrenPos, probability,
PatriciaTrieReadingUtils::isTerminal(flags), PatriciaTrieReadingUtils::isTerminal(flags),
PatriciaTrieReadingUtils::hasChildrenInFlags(flags), PatriciaTrieReadingUtils::hasChildrenInFlags(flags),

13
native/jni/src/suggest/policyimpl/dictionary/patricia_trie_reading_utils.cpp
View file

@ -71,8 +71,17 @@ const PtReadingUtils::NodeFlags PtReadingUtils::FLAG_IS_BLACKLISTED = 0x01;
length = ByteArrayUtils::readStringAndAdvancePosition(buffer, maxLength, outBuffer, length = ByteArrayUtils::readStringAndAdvancePosition(buffer, maxLength, outBuffer,
pos); pos);
} else { } else {
if (maxLength > 0) { const int codePoint = getCodePointAndAdvancePosition(buffer, pos);
outBuffer[0] = getCodePointAndAdvancePosition(buffer, pos); if (codePoint == NOT_A_CODE_POINT) {
// CAVEAT: codePoint == NOT_A_CODE_POINT means the code point is
// CHARACTER_ARRAY_TERMINATOR. The code point must not be CHARACTER_ARRAY_TERMINATOR
// when the PtNode has a single code point.
length = 0;
AKLOGE("codePoint is NOT_A_CODE_POINT. pos: %d, codePoint: 0x%x, buffer[pos - 1]: 0x%x",
*pos - 1, codePoint, buffer[*pos - 1]);
ASSERT(false);
} else if (maxLength > 0) {
outBuffer[0] = codePoint;
length = 1; length = 1;
} }
} }