merrymeerkat created this revision.
Herald added subscribers: martong, xazax.hun.
Herald added a reviewer: NoQ.
Herald added a project: All.
merrymeerkat requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.
...lattice element.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D139868
Files:
clang/include/clang/Analysis/FlowSensitive/MatchSwitch.h
clang/unittests/Analysis/FlowSensitive/TestingSupport.h
clang/unittests/Analysis/FlowSensitive/UncheckedOptionalAccessModelTest.cpp
Index: clang/unittests/Analysis/FlowSensitive/UncheckedOptionalAccessModelTest.cpp
===================================================================
--- clang/unittests/Analysis/FlowSensitive/UncheckedOptionalAccessModelTest.cpp
+++ clang/unittests/Analysis/FlowSensitive/UncheckedOptionalAccessModelTest.cpp
@@ -1314,7 +1314,8 @@
[&Diagnostics,
Diagnoser = UncheckedOptionalAccessDiagnoser(Options)](
ASTContext &Ctx, const CFGElement &Elt,
- const TypeErasedDataflowAnalysisState &State) mutable {
+ const TransferStateForDiagnostics<NoopLattice>
+ &State) mutable {
auto EltDiagnostics =
Diagnoser.diagnose(Ctx, &Elt, State.Env);
llvm::move(EltDiagnostics, std::back_inserter(Diagnostics));
Index: clang/unittests/Analysis/FlowSensitive/TestingSupport.h
===================================================================
--- clang/unittests/Analysis/FlowSensitive/TestingSupport.h
+++ clang/unittests/Analysis/FlowSensitive/TestingSupport.h
@@ -30,6 +30,7 @@
#include "clang/Analysis/FlowSensitive/ControlFlowContext.h"
#include "clang/Analysis/FlowSensitive/DataflowAnalysis.h"
#include "clang/Analysis/FlowSensitive/DataflowEnvironment.h"
+#include "clang/Analysis/FlowSensitive/MatchSwitch.h"
#include "clang/Analysis/FlowSensitive/WatchedLiteralsSolver.h"
#include "clang/Basic/LLVM.h"
#include "clang/Serialization/PCHContainerOperations.h"
@@ -116,11 +117,26 @@
SetupTest = std::move(Arg);
return std::move(*this);
}
+ AnalysisInputs<AnalysisT> &&withPostVisitCFG(
+ std::function<void(
+ ASTContext &, const CFGElement &,
+ const TransferStateForDiagnostics<typename AnalysisT::Lattice> &)>
+ Arg) && {
+ PostVisitCFG = std::move(Arg);
+ return std::move(*this);
+ }
+
AnalysisInputs<AnalysisT> &&
withPostVisitCFG(std::function<void(ASTContext &, const CFGElement &,
const TypeErasedDataflowAnalysisState &)>
Arg) && {
- PostVisitCFG = std::move(Arg);
+ PostVisitCFG =
+ [=](ASTContext &Context, const CFGElement &Element,
+ const TransferStateForDiagnostics<typename AnalysisT::Lattice>
+ &State) {
+ Arg(Context, Element,
+ TypeErasedDataflowAnalysisState({State.Lattice}, State.Env));
+ };
return std::move(*this);
}
AnalysisInputs<AnalysisT> &&withASTBuildArgs(ArrayRef<std::string> Arg) && {
@@ -148,8 +164,9 @@
std::function<llvm::Error(AnalysisOutputs &)> SetupTest = nullptr;
/// Optional. If provided, this function is applied on each CFG element after
/// the analysis has been run.
- std::function<void(ASTContext &, const CFGElement &,
- const TypeErasedDataflowAnalysisState &)>
+ std::function<void(
+ ASTContext &, const CFGElement &,
+ const TransferStateForDiagnostics<typename AnalysisT::Lattice> &)>
PostVisitCFG = nullptr;
/// Optional. Options for building the AST context.
@@ -226,11 +243,15 @@
const TypeErasedDataflowAnalysisState &)>
PostVisitCFGClosure = nullptr;
if (AI.PostVisitCFG) {
- PostVisitCFGClosure =
- [&AI, &Context](const CFGElement &Element,
- const TypeErasedDataflowAnalysisState &State) {
- AI.PostVisitCFG(Context, Element, State);
- };
+ PostVisitCFGClosure = [&AI, &Context](
+ const CFGElement &Element,
+ const TypeErasedDataflowAnalysisState &State) {
+ AI.PostVisitCFG(Context, Element,
+ TransferStateForDiagnostics<typename AnalysisT::Lattice>(
+ llvm::any_cast<const typename AnalysisT::Lattice &>(
+ State.Lattice.Value),
+ State.Env));
+ };
}
// Additional test setup.
@@ -326,28 +347,28 @@
// Save the states computed for program points immediately following annotated
// statements. The saved states are keyed by the content of the annotation.
llvm::StringMap<StateT> AnnotationStates;
- auto PostVisitCFG = [&StmtToAnnotations, &AnnotationStates,
- PrevPostVisitCFG = std::move(AI.PostVisitCFG)](
- ASTContext &Ctx, const CFGElement &Elt,
- const TypeErasedDataflowAnalysisState &State) {
- if (PrevPostVisitCFG) {
- PrevPostVisitCFG(Ctx, Elt, State);
- }
- // FIXME: Extend retrieval of state for non statement constructs.
- auto Stmt = Elt.getAs<CFGStmt>();
- if (!Stmt)
- return;
- auto It = StmtToAnnotations.find(Stmt->getStmt());
- if (It == StmtToAnnotations.end())
- return;
- auto *Lattice =
- llvm::any_cast<typename AnalysisT::Lattice>(&State.Lattice.Value);
- auto [_, InsertSuccess] =
- AnnotationStates.insert({It->second, StateT{*Lattice, State.Env}});
- (void)_;
- (void)InsertSuccess;
- assert(InsertSuccess);
- };
+ auto PostVisitCFG =
+ [&StmtToAnnotations, &AnnotationStates,
+ PrevPostVisitCFG = std::move(AI.PostVisitCFG)](
+ ASTContext &Ctx, const CFGElement &Elt,
+ const TransferStateForDiagnostics<typename AnalysisT::Lattice>
+ &State) {
+ if (PrevPostVisitCFG) {
+ PrevPostVisitCFG(Ctx, Elt, State);
+ }
+ // FIXME: Extend retrieval of state for non statement constructs.
+ auto Stmt = Elt.getAs<CFGStmt>();
+ if (!Stmt)
+ return;
+ auto It = StmtToAnnotations.find(Stmt->getStmt());
+ if (It == StmtToAnnotations.end())
+ return;
+ auto [_, InsertSuccess] = AnnotationStates.insert(
+ {It->second, StateT{State.Lattice, State.Env}});
+ (void)_;
+ (void)InsertSuccess;
+ assert(InsertSuccess);
+ };
return checkDataflow<AnalysisT>(
std::move(AI)
.withSetupTest(std::move(SetupTest))
Index: clang/include/clang/Analysis/FlowSensitive/MatchSwitch.h
===================================================================
--- clang/include/clang/Analysis/FlowSensitive/MatchSwitch.h
+++ clang/include/clang/Analysis/FlowSensitive/MatchSwitch.h
@@ -48,6 +48,16 @@
Environment &Env;
};
+/// A read-only version of TransferState.
+template <typename LatticeT> struct TransferStateForDiagnostics {
+ TransferStateForDiagnostics(const LatticeT &Lattice, const Environment &Env)
+ : Lattice(Lattice), Env(Env) {}
+
+ /// Current lattice element.
+ const LatticeT &Lattice;
+ const Environment &Env;
+};
+
template <typename T>
using MatchSwitchMatcher = ast_matchers::internal::Matcher<T>;
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