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PPCaching.cpp (208954) PPCaching.cpp (210299)
1//===--- PPCaching.cpp - Handle caching lexed tokens ----------------------===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//

--- 31 unchanged lines hidden (view full) ---

40void Preprocessor::Backtrack() {
41 assert(!BacktrackPositions.empty()
42 && "EnableBacktrackAtThisPos was not called!");
43 CachedLexPos = BacktrackPositions.back();
44 BacktrackPositions.pop_back();
45}
46
47void Preprocessor::CachingLex(Token &Result) {
1//===--- PPCaching.cpp - Handle caching lexed tokens ----------------------===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//

--- 31 unchanged lines hidden (view full) ---

40void Preprocessor::Backtrack() {
41 assert(!BacktrackPositions.empty()
42 && "EnableBacktrackAtThisPos was not called!");
43 CachedLexPos = BacktrackPositions.back();
44 BacktrackPositions.pop_back();
45}
46
47void Preprocessor::CachingLex(Token &Result) {
48 if (!InCachingLexMode())
49 return;
50
48 if (CachedLexPos < CachedTokens.size()) {
49 Result = CachedTokens[CachedLexPos++];
50 return;
51 }
52
53 ExitCachingLexMode();
54 Lex(Result);
55
56 if (!isBacktrackEnabled()) {
57 // All cached tokens were consumed.
58 CachedTokens.clear();
59 CachedLexPos = 0;
60 return;
61 }
62
51 if (CachedLexPos < CachedTokens.size()) {
52 Result = CachedTokens[CachedLexPos++];
53 return;
54 }
55
56 ExitCachingLexMode();
57 Lex(Result);
58
59 if (!isBacktrackEnabled()) {
60 // All cached tokens were consumed.
61 CachedTokens.clear();
62 CachedLexPos = 0;
63 return;
64 }
65
63 // We should cache the lexed token.
64
66 // Cache the lexed token.
65 EnterCachingLexMode();
67 EnterCachingLexMode();
66 if (Result.isNot(tok::eof)) {
67 CachedTokens.push_back(Result);
68 ++CachedLexPos;
69 }
68 CachedTokens.push_back(Result);
69 ++CachedLexPos;
70}
71
72void Preprocessor::EnterCachingLexMode() {
73 if (InCachingLexMode())
74 return;
75
76 PushIncludeMacroStack();
77}

--- 35 unchanged lines hidden --- 		70}
71
72void Preprocessor::EnterCachingLexMode() {
73 if (InCachingLexMode())
74 return;
75
76 PushIncludeMacroStack();
77}

--- 35 unchanged lines hidden ---