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Made Deserializer a friend class of BitstreamReader.
Moved some of the logic in BitstreamReader::ExitBlock into a utility function BitstreamReader::PopBlockScope. The latter is a private method. It will also be called by Deserializer to manipulate the current "block scope." llvm-svn: 43972
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@ -20,9 +20,12 @@
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namespace llvm {
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class Deserializer;
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class BitstreamReader {
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const unsigned char *NextChar;
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const unsigned char *LastChar;
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friend class Deserializer;
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/// CurWord - This is the current data we have pulled from the stream but have
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/// not returned to the client.
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@ -269,8 +272,8 @@ public:
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return false;
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}
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/// EnterSubBlock - Having read the ENTER_SUBBLOCK abbrevid, read and enter
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/// the block, returning the BlockID of the block we just entered.
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/// EnterSubBlock - Having read the ENTER_SUBBLOCK abbrevid, enter
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/// the block, and return true if the block is valid.
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bool EnterSubBlock(unsigned BlockID, unsigned *NumWordsP = 0) {
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// Save the current block's state on BlockScope.
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BlockScope.push_back(Block(CurCodeSize));
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@ -303,6 +306,13 @@ public:
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// Block tail:
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// [END_BLOCK, <align4bytes>]
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SkipToWord();
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PopBlockScope();
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return false;
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}
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private:
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void PopBlockScope() {
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CurCodeSize = BlockScope.back().PrevCodeSize;
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// Delete abbrevs from popped scope.
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@ -311,9 +321,8 @@ public:
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BlockScope.back().PrevAbbrevs.swap(CurAbbrevs);
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BlockScope.pop_back();
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return false;
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}
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}
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//===--------------------------------------------------------------------===//
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// Record Processing
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//===--------------------------------------------------------------------===//
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