[analyzer] Small cleanups when checkers retrieving statements from exploded
nodes.
Differential Revision: https://reviews.llvm.org/D23550
llvm-svn: 279037
diff --git a/clang/lib/StaticAnalyzer/Checkers/DynamicTypeChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/DynamicTypeChecker.cpp
index 7e0cb8e..a37ebc5 100644
--- a/clang/lib/StaticAnalyzer/Checkers/DynamicTypeChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/DynamicTypeChecker.cpp
@@ -107,12 +107,7 @@
return nullptr;
// Retrieve the associated statement.
- const Stmt *S = nullptr;
- ProgramPoint ProgLoc = N->getLocation();
- if (Optional<StmtPoint> SP = ProgLoc.getAs<StmtPoint>()) {
- S = SP->getStmt();
- }
-
+ const Stmt *S = PathDiagnosticLocation::getStmt(N);
if (!S)
return nullptr;
diff --git a/clang/lib/StaticAnalyzer/Checkers/DynamicTypePropagation.cpp b/clang/lib/StaticAnalyzer/Checkers/DynamicTypePropagation.cpp
index b8e4332..a8f2f3a 100644
--- a/clang/lib/StaticAnalyzer/Checkers/DynamicTypePropagation.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/DynamicTypePropagation.cpp
@@ -909,12 +909,7 @@
return nullptr;
// Retrieve the associated statement.
- const Stmt *S = nullptr;
- ProgramPoint ProgLoc = N->getLocation();
- if (Optional<StmtPoint> SP = ProgLoc.getAs<StmtPoint>()) {
- S = SP->getStmt();
- }
-
+ const Stmt *S = PathDiagnosticLocation::getStmt(N);
if (!S)
return nullptr;
diff --git a/clang/lib/StaticAnalyzer/Checkers/MacOSKeychainAPIChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/MacOSKeychainAPIChecker.cpp
index 1e56d70..86c8270 100644
--- a/clang/lib/StaticAnalyzer/Checkers/MacOSKeychainAPIChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/MacOSKeychainAPIChecker.cpp
@@ -524,12 +524,7 @@
// allocated, and only report a single path.
PathDiagnosticLocation LocUsedForUniqueing;
const ExplodedNode *AllocNode = getAllocationNode(N, AP.first, C);
- const Stmt *AllocStmt = nullptr;
- ProgramPoint P = AllocNode->getLocation();
- if (Optional<CallExitEnd> Exit = P.getAs<CallExitEnd>())
- AllocStmt = Exit->getCalleeContext()->getCallSite();
- else if (Optional<clang::PostStmt> PS = P.getAs<clang::PostStmt>())
- AllocStmt = PS->getStmt();
+ const Stmt *AllocStmt = PathDiagnosticLocation::getStmt(AllocNode);
if (AllocStmt)
LocUsedForUniqueing = PathDiagnosticLocation::createBegin(AllocStmt,
diff --git a/clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
index c6eb30c..611d9b4 100644
--- a/clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
@@ -2094,12 +2094,7 @@
const MemRegion *Region = nullptr;
std::tie(AllocNode, Region) = getAllocationSite(N, Sym, C);
- ProgramPoint P = AllocNode->getLocation();
- const Stmt *AllocationStmt = nullptr;
- if (Optional<CallExitEnd> Exit = P.getAs<CallExitEnd>())
- AllocationStmt = Exit->getCalleeContext()->getCallSite();
- else if (Optional<StmtPoint> SP = P.getAs<StmtPoint>())
- AllocationStmt = SP->getStmt();
+ const Stmt *AllocationStmt = PathDiagnosticLocation::getStmt(AllocNode);
if (AllocationStmt)
LocUsedForUniqueing = PathDiagnosticLocation::createBegin(AllocationStmt,
C.getSourceManager(),
@@ -2626,22 +2621,7 @@
if (!RS)
return nullptr;
- const Stmt *S = nullptr;
- const char *Msg = nullptr;
- StackHintGeneratorForSymbol *StackHint = nullptr;
-
- // Retrieve the associated statement.
- ProgramPoint ProgLoc = N->getLocation();
- if (Optional<StmtPoint> SP = ProgLoc.getAs<StmtPoint>()) {
- S = SP->getStmt();
- } else if (Optional<CallExitEnd> Exit = ProgLoc.getAs<CallExitEnd>()) {
- S = Exit->getCalleeContext()->getCallSite();
- } else if (Optional<BlockEdge> Edge = ProgLoc.getAs<BlockEdge>()) {
- // If an assumption was made on a branch, it should be caught
- // here by looking at the state transition.
- S = Edge->getSrc()->getTerminator();
- }
-
+ const Stmt *S = PathDiagnosticLocation::getStmt(N);
if (!S)
return nullptr;
@@ -2649,6 +2629,8 @@
// (__attribute__((cleanup))).
// Find out if this is an interesting point and what is the kind.
+ const char *Msg = nullptr;
+ StackHintGeneratorForSymbol *StackHint = nullptr;
if (Mode == Normal) {
if (isAllocated(RS, RSPrev, S)) {
Msg = "Memory is allocated";
diff --git a/clang/lib/StaticAnalyzer/Checkers/NullabilityChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/NullabilityChecker.cpp
index d7ec6b1..d642356 100644
--- a/clang/lib/StaticAnalyzer/Checkers/NullabilityChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/NullabilityChecker.cpp
@@ -325,10 +325,7 @@
// Retrieve the associated statement.
const Stmt *S = TrackedNullab->getNullabilitySource();
if (!S) {
- ProgramPoint ProgLoc = N->getLocation();
- if (Optional<StmtPoint> SP = ProgLoc.getAs<StmtPoint>()) {
- S = SP->getStmt();
- }
+ S = PathDiagnosticLocation::getStmt(N);
}
if (!S)
diff --git a/clang/lib/StaticAnalyzer/Checkers/RetainCountChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/RetainCountChecker.cpp
index 6bb0727..d445e91b 100644
--- a/clang/lib/StaticAnalyzer/Checkers/RetainCountChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/RetainCountChecker.cpp
@@ -2418,12 +2418,7 @@
// FIXME: This will crash the analyzer if an allocation comes from an
// implicit call (ex: a destructor call).
// (Currently there are no such allocations in Cocoa, though.)
- const Stmt *AllocStmt = nullptr;
- ProgramPoint P = AllocNode->getLocation();
- if (Optional<CallExitEnd> Exit = P.getAs<CallExitEnd>())
- AllocStmt = Exit->getCalleeContext()->getCallSite();
- else
- AllocStmt = P.castAs<PostStmt>().getStmt();
+ const Stmt *AllocStmt = PathDiagnosticLocation::getStmt(AllocNode);
assert(AllocStmt && "Cannot find allocation statement");
PathDiagnosticLocation AllocLocation =