clang -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name AffectedRangeManager.cpp -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-eagerly-assume -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -mrelocation-model pic -pic-level 2 -mthread-model posix -relaxed-aliasing -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb -momit-leaf-frame-pointer -ffunction-sections -fdata-sections -resource-dir /usr/lib/llvm-7/lib/clang/7.0.0 -D _DEBUG -D _GNU_SOURCE -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -I /build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/lib/Format -I /build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Format -I /build/llvm-toolchain-snapshot-7~svn329677/tools/clang/include -I /build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include -I /build/llvm-toolchain-snapshot-7~svn329677/build-llvm/include -I /build/llvm-toolchain-snapshot-7~svn329677/include -U NDEBUG -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../../include/c++/7.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../../include/x86_64-linux-gnu/c++/7.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../../include/x86_64-linux-gnu/c++/7.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../../include/c++/7.3.0/backward -internal-isystem /usr/include/clang/7.0.0/include/ -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-7/lib/clang/7.0.0/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -Wno-maybe-uninitialized -Wno-comment -std=c++11 -fdeprecated-macro -fdebug-compilation-dir /build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/lib/Format -ferror-limit 19 -fmessage-length 0 -fvisibility-inlines-hidden -fobjc-runtime=gcc -fno-common -fdiagnostics-show-option -vectorize-loops -vectorize-slp -analyzer-checker optin.performance.Padding -analyzer-output=html -analyzer-config stable-report-filename=true -o /tmp/scan-build-2018-04-11-031539-24776-1 -x c++ /build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Format/AffectedRangeManager.cpp
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14 | |
15 | #include "AffectedRangeManager.h" |
16 | |
17 | #include "FormatToken.h" |
18 | #include "TokenAnnotator.h" |
19 | |
20 | namespace clang { |
21 | namespace format { |
22 | |
23 | bool AffectedRangeManager::computeAffectedLines( |
24 | SmallVectorImpl<AnnotatedLine *>::iterator I, |
25 | SmallVectorImpl<AnnotatedLine *>::iterator E) { |
26 | bool SomeLineAffected = false; |
27 | const AnnotatedLine *PreviousLine = nullptr; |
28 | while (I != E) { |
| 1 | Assuming 'I' is not equal to 'E' | |
|
| 2 | | Loop condition is true. Entering loop body | |
|
29 | AnnotatedLine *Line = *I; |
30 | Line->LeadingEmptyLinesAffected = affectsLeadingEmptyLines(*Line->First); |
31 | |
32 | |
33 | |
34 | if (Line->InPPDirective) { |
| 3 | | Assuming the condition is false | |
|
| |
35 | FormatToken *Last = Line->Last; |
36 | SmallVectorImpl<AnnotatedLine *>::iterator PPEnd = I + 1; |
37 | while (PPEnd != E && !(*PPEnd)->First->HasUnescapedNewline) { |
38 | Last = (*PPEnd)->Last; |
39 | ++PPEnd; |
40 | } |
41 | |
42 | if (affectsTokenRange(*Line->First, *Last, |
43 | false)) { |
44 | SomeLineAffected = true; |
45 | markAllAsAffected(I, PPEnd); |
46 | } |
47 | I = PPEnd; |
48 | continue; |
49 | } |
50 | |
51 | if (nonPPLineAffected(Line, PreviousLine)) |
| 5 | | Calling 'AffectedRangeManager::nonPPLineAffected' | |
|
52 | SomeLineAffected = true; |
53 | |
54 | PreviousLine = Line; |
55 | ++I; |
56 | } |
57 | return SomeLineAffected; |
58 | } |
59 | |
60 | bool AffectedRangeManager::affectsCharSourceRange( |
61 | const CharSourceRange &Range) { |
62 | for (SmallVectorImpl<CharSourceRange>::const_iterator I = Ranges.begin(), |
63 | E = Ranges.end(); |
64 | I != E; ++I) { |
65 | if (!SourceMgr.isBeforeInTranslationUnit(Range.getEnd(), I->getBegin()) && |
66 | !SourceMgr.isBeforeInTranslationUnit(I->getEnd(), Range.getBegin())) |
67 | return true; |
68 | } |
69 | return false; |
70 | } |
71 | |
72 | bool AffectedRangeManager::affectsTokenRange(const FormatToken &First, |
73 | const FormatToken &Last, |
74 | bool IncludeLeadingNewlines) { |
75 | SourceLocation Start = First.WhitespaceRange.getBegin(); |
76 | if (!IncludeLeadingNewlines) |
77 | Start = Start.getLocWithOffset(First.LastNewlineOffset); |
78 | SourceLocation End = Last.getStartOfNonWhitespace(); |
79 | End = End.getLocWithOffset(Last.TokenText.size()); |
80 | CharSourceRange Range = CharSourceRange::getCharRange(Start, End); |
81 | return affectsCharSourceRange(Range); |
82 | } |
83 | |
84 | bool AffectedRangeManager::affectsLeadingEmptyLines(const FormatToken &Tok) { |
85 | CharSourceRange EmptyLineRange = CharSourceRange::getCharRange( |
86 | Tok.WhitespaceRange.getBegin(), |
87 | Tok.WhitespaceRange.getBegin().getLocWithOffset(Tok.LastNewlineOffset)); |
88 | return affectsCharSourceRange(EmptyLineRange); |
89 | } |
90 | |
91 | void AffectedRangeManager::markAllAsAffected( |
92 | SmallVectorImpl<AnnotatedLine *>::iterator I, |
93 | SmallVectorImpl<AnnotatedLine *>::iterator E) { |
94 | while (I != E) { |
95 | (*I)->Affected = true; |
96 | markAllAsAffected((*I)->Children.begin(), (*I)->Children.end()); |
97 | ++I; |
98 | } |
99 | } |
100 | |
101 | bool AffectedRangeManager::nonPPLineAffected( |
102 | AnnotatedLine *Line, const AnnotatedLine *PreviousLine) { |
103 | bool SomeLineAffected = false; |
104 | Line->ChildrenAffected = |
105 | computeAffectedLines(Line->Children.begin(), Line->Children.end()); |
| 6 | | Value assigned to field 'First' | |
|
106 | if (Line->ChildrenAffected) |
| 7 | | Assuming the condition is false | |
|
| |
107 | SomeLineAffected = true; |
108 | |
109 | |
110 | bool SomeTokenAffected = false; |
111 | |
112 | |
113 | bool IncludeLeadingNewlines = false; |
114 | |
115 | |
116 | |
117 | bool SomeFirstChildAffected = false; |
118 | |
119 | for (FormatToken *Tok = Line->First; Tok; Tok = Tok->Next) { |
| 9 | | Assuming pointer value is null | |
|
| 10 | | Loop condition is false. Execution continues on line 133 | |
|
120 | |
121 | if (affectsTokenRange(*Tok, *Tok, IncludeLeadingNewlines)) |
122 | SomeTokenAffected = true; |
123 | |
124 | |
125 | if (!Tok->Children.empty() && Tok->Children.front()->Affected) |
126 | SomeFirstChildAffected = true; |
127 | |
128 | IncludeLeadingNewlines = Tok->Children.empty(); |
129 | } |
130 | |
131 | |
132 | |
133 | bool LineMoved = PreviousLine && PreviousLine->Affected && |
134 | Line->First->NewlinesBefore == 0; |
135 | |
136 | bool IsContinuedComment = |
137 | Line->First->is(tok::comment) && Line->First->Next == nullptr && |
| 11 | | Called C++ object pointer is null |
|
138 | Line->First->NewlinesBefore < 2 && PreviousLine && |
139 | PreviousLine->Affected && PreviousLine->Last->is(tok::comment); |
140 | |
141 | if (SomeTokenAffected || SomeFirstChildAffected || LineMoved || |
142 | IsContinuedComment) { |
143 | Line->Affected = true; |
144 | SomeLineAffected = true; |
145 | } |
146 | return SomeLineAffected; |
147 | } |
148 | |
149 | } |
150 | } |