1425 lines
52 KiB
C++
1425 lines
52 KiB
C++
//=- LocalizationChecker.cpp -------------------------------------*- C++ -*-==//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines a set of checks for localizability including:
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// 1) A checker that warns about uses of non-localized NSStrings passed to
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// UI methods expecting localized strings
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// 2) A syntactic checker that warns against the bad practice of
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// not including a comment in NSLocalizedString macros.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/StaticAnalyzer/Checkers/BuiltinCheckerRegistration.h"
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#include "clang/AST/Attr.h"
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#include "clang/AST/Decl.h"
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#include "clang/AST/DeclObjC.h"
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#include "clang/AST/RecursiveASTVisitor.h"
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#include "clang/AST/StmtVisitor.h"
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#include "clang/Lex/Lexer.h"
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#include "clang/StaticAnalyzer/Core/BugReporter/BugReporter.h"
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#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
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#include "clang/StaticAnalyzer/Core/Checker.h"
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#include "clang/StaticAnalyzer/Core/CheckerManager.h"
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#include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"
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#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
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#include "clang/StaticAnalyzer/Core/PathSensitive/ExprEngine.h"
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#include "llvm/Support/Unicode.h"
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using namespace clang;
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using namespace ento;
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namespace {
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struct LocalizedState {
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private:
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enum Kind { NonLocalized, Localized } K;
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LocalizedState(Kind InK) : K(InK) {}
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public:
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bool isLocalized() const { return K == Localized; }
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bool isNonLocalized() const { return K == NonLocalized; }
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static LocalizedState getLocalized() { return LocalizedState(Localized); }
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static LocalizedState getNonLocalized() {
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return LocalizedState(NonLocalized);
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}
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// Overload the == operator
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bool operator==(const LocalizedState &X) const { return K == X.K; }
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// LLVMs equivalent of a hash function
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void Profile(llvm::FoldingSetNodeID &ID) const { ID.AddInteger(K); }
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};
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class NonLocalizedStringChecker
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: public Checker<check::PreCall, check::PostCall, check::PreObjCMessage,
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check::PostObjCMessage,
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check::PostStmt<ObjCStringLiteral>> {
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mutable std::unique_ptr<BugType> BT;
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// Methods that require a localized string
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mutable llvm::DenseMap<const IdentifierInfo *,
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llvm::DenseMap<Selector, uint8_t>> UIMethods;
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// Methods that return a localized string
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mutable llvm::SmallSet<std::pair<const IdentifierInfo *, Selector>, 12> LSM;
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// C Functions that return a localized string
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mutable llvm::SmallSet<const IdentifierInfo *, 5> LSF;
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void initUIMethods(ASTContext &Ctx) const;
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void initLocStringsMethods(ASTContext &Ctx) const;
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bool hasNonLocalizedState(SVal S, CheckerContext &C) const;
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bool hasLocalizedState(SVal S, CheckerContext &C) const;
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void setNonLocalizedState(SVal S, CheckerContext &C) const;
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void setLocalizedState(SVal S, CheckerContext &C) const;
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bool isAnnotatedAsReturningLocalized(const Decl *D) const;
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bool isAnnotatedAsTakingLocalized(const Decl *D) const;
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void reportLocalizationError(SVal S, const CallEvent &M, CheckerContext &C,
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int argumentNumber = 0) const;
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int getLocalizedArgumentForSelector(const IdentifierInfo *Receiver,
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Selector S) const;
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public:
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NonLocalizedStringChecker();
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// When this parameter is set to true, the checker assumes all
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// methods that return NSStrings are unlocalized. Thus, more false
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// positives will be reported.
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DefaultBool IsAggressive;
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void checkPreObjCMessage(const ObjCMethodCall &msg, CheckerContext &C) const;
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void checkPostObjCMessage(const ObjCMethodCall &msg, CheckerContext &C) const;
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void checkPostStmt(const ObjCStringLiteral *SL, CheckerContext &C) const;
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void checkPreCall(const CallEvent &Call, CheckerContext &C) const;
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void checkPostCall(const CallEvent &Call, CheckerContext &C) const;
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};
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} // end anonymous namespace
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REGISTER_MAP_WITH_PROGRAMSTATE(LocalizedMemMap, const MemRegion *,
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LocalizedState)
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NonLocalizedStringChecker::NonLocalizedStringChecker() {
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BT.reset(new BugType(this, "Unlocalizable string",
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"Localizability Issue (Apple)"));
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}
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namespace {
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class NonLocalizedStringBRVisitor final : public BugReporterVisitor {
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const MemRegion *NonLocalizedString;
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bool Satisfied;
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public:
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NonLocalizedStringBRVisitor(const MemRegion *NonLocalizedString)
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: NonLocalizedString(NonLocalizedString), Satisfied(false) {
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assert(NonLocalizedString);
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}
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PathDiagnosticPieceRef VisitNode(const ExplodedNode *Succ,
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BugReporterContext &BRC,
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PathSensitiveBugReport &BR) override;
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void Profile(llvm::FoldingSetNodeID &ID) const override {
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ID.Add(NonLocalizedString);
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}
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};
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} // End anonymous namespace.
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#define NEW_RECEIVER(receiver) \
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llvm::DenseMap<Selector, uint8_t> &receiver##M = \
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UIMethods.insert({&Ctx.Idents.get(#receiver), \
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llvm::DenseMap<Selector, uint8_t>()}) \
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.first->second;
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#define ADD_NULLARY_METHOD(receiver, method, argument) \
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receiver##M.insert( \
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{Ctx.Selectors.getNullarySelector(&Ctx.Idents.get(#method)), argument});
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#define ADD_UNARY_METHOD(receiver, method, argument) \
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receiver##M.insert( \
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{Ctx.Selectors.getUnarySelector(&Ctx.Idents.get(#method)), argument});
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#define ADD_METHOD(receiver, method_list, count, argument) \
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receiver##M.insert({Ctx.Selectors.getSelector(count, method_list), argument});
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/// Initializes a list of methods that require a localized string
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/// Format: {"ClassName", {{"selectorName:", LocStringArg#}, ...}, ...}
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void NonLocalizedStringChecker::initUIMethods(ASTContext &Ctx) const {
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if (!UIMethods.empty())
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return;
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// UI Methods
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NEW_RECEIVER(UISearchDisplayController)
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ADD_UNARY_METHOD(UISearchDisplayController, setSearchResultsTitle, 0)
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NEW_RECEIVER(UITabBarItem)
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IdentifierInfo *initWithTitleUITabBarItemTag[] = {
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&Ctx.Idents.get("initWithTitle"), &Ctx.Idents.get("image"),
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&Ctx.Idents.get("tag")};
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ADD_METHOD(UITabBarItem, initWithTitleUITabBarItemTag, 3, 0)
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IdentifierInfo *initWithTitleUITabBarItemImage[] = {
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&Ctx.Idents.get("initWithTitle"), &Ctx.Idents.get("image"),
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&Ctx.Idents.get("selectedImage")};
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ADD_METHOD(UITabBarItem, initWithTitleUITabBarItemImage, 3, 0)
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NEW_RECEIVER(NSDockTile)
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ADD_UNARY_METHOD(NSDockTile, setBadgeLabel, 0)
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NEW_RECEIVER(NSStatusItem)
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ADD_UNARY_METHOD(NSStatusItem, setTitle, 0)
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ADD_UNARY_METHOD(NSStatusItem, setToolTip, 0)
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NEW_RECEIVER(UITableViewRowAction)
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IdentifierInfo *rowActionWithStyleUITableViewRowAction[] = {
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&Ctx.Idents.get("rowActionWithStyle"), &Ctx.Idents.get("title"),
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&Ctx.Idents.get("handler")};
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ADD_METHOD(UITableViewRowAction, rowActionWithStyleUITableViewRowAction, 3, 1)
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ADD_UNARY_METHOD(UITableViewRowAction, setTitle, 0)
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NEW_RECEIVER(NSBox)
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ADD_UNARY_METHOD(NSBox, setTitle, 0)
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NEW_RECEIVER(NSButton)
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ADD_UNARY_METHOD(NSButton, setTitle, 0)
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ADD_UNARY_METHOD(NSButton, setAlternateTitle, 0)
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IdentifierInfo *radioButtonWithTitleNSButton[] = {
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&Ctx.Idents.get("radioButtonWithTitle"), &Ctx.Idents.get("target"),
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&Ctx.Idents.get("action")};
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ADD_METHOD(NSButton, radioButtonWithTitleNSButton, 3, 0)
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IdentifierInfo *buttonWithTitleNSButtonImage[] = {
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&Ctx.Idents.get("buttonWithTitle"), &Ctx.Idents.get("image"),
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&Ctx.Idents.get("target"), &Ctx.Idents.get("action")};
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ADD_METHOD(NSButton, buttonWithTitleNSButtonImage, 4, 0)
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IdentifierInfo *checkboxWithTitleNSButton[] = {
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&Ctx.Idents.get("checkboxWithTitle"), &Ctx.Idents.get("target"),
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&Ctx.Idents.get("action")};
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ADD_METHOD(NSButton, checkboxWithTitleNSButton, 3, 0)
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IdentifierInfo *buttonWithTitleNSButtonTarget[] = {
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&Ctx.Idents.get("buttonWithTitle"), &Ctx.Idents.get("target"),
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&Ctx.Idents.get("action")};
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ADD_METHOD(NSButton, buttonWithTitleNSButtonTarget, 3, 0)
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NEW_RECEIVER(NSSavePanel)
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ADD_UNARY_METHOD(NSSavePanel, setPrompt, 0)
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ADD_UNARY_METHOD(NSSavePanel, setTitle, 0)
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ADD_UNARY_METHOD(NSSavePanel, setNameFieldLabel, 0)
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ADD_UNARY_METHOD(NSSavePanel, setNameFieldStringValue, 0)
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ADD_UNARY_METHOD(NSSavePanel, setMessage, 0)
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NEW_RECEIVER(UIPrintInfo)
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ADD_UNARY_METHOD(UIPrintInfo, setJobName, 0)
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NEW_RECEIVER(NSTabViewItem)
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ADD_UNARY_METHOD(NSTabViewItem, setLabel, 0)
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ADD_UNARY_METHOD(NSTabViewItem, setToolTip, 0)
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NEW_RECEIVER(NSBrowser)
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IdentifierInfo *setTitleNSBrowser[] = {&Ctx.Idents.get("setTitle"),
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&Ctx.Idents.get("ofColumn")};
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ADD_METHOD(NSBrowser, setTitleNSBrowser, 2, 0)
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NEW_RECEIVER(UIAccessibilityElement)
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ADD_UNARY_METHOD(UIAccessibilityElement, setAccessibilityLabel, 0)
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ADD_UNARY_METHOD(UIAccessibilityElement, setAccessibilityHint, 0)
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ADD_UNARY_METHOD(UIAccessibilityElement, setAccessibilityValue, 0)
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NEW_RECEIVER(UIAlertAction)
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IdentifierInfo *actionWithTitleUIAlertAction[] = {
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&Ctx.Idents.get("actionWithTitle"), &Ctx.Idents.get("style"),
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&Ctx.Idents.get("handler")};
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ADD_METHOD(UIAlertAction, actionWithTitleUIAlertAction, 3, 0)
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NEW_RECEIVER(NSPopUpButton)
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ADD_UNARY_METHOD(NSPopUpButton, addItemWithTitle, 0)
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IdentifierInfo *insertItemWithTitleNSPopUpButton[] = {
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&Ctx.Idents.get("insertItemWithTitle"), &Ctx.Idents.get("atIndex")};
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ADD_METHOD(NSPopUpButton, insertItemWithTitleNSPopUpButton, 2, 0)
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ADD_UNARY_METHOD(NSPopUpButton, removeItemWithTitle, 0)
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ADD_UNARY_METHOD(NSPopUpButton, selectItemWithTitle, 0)
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ADD_UNARY_METHOD(NSPopUpButton, setTitle, 0)
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NEW_RECEIVER(NSTableViewRowAction)
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IdentifierInfo *rowActionWithStyleNSTableViewRowAction[] = {
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&Ctx.Idents.get("rowActionWithStyle"), &Ctx.Idents.get("title"),
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&Ctx.Idents.get("handler")};
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ADD_METHOD(NSTableViewRowAction, rowActionWithStyleNSTableViewRowAction, 3, 1)
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ADD_UNARY_METHOD(NSTableViewRowAction, setTitle, 0)
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NEW_RECEIVER(NSImage)
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ADD_UNARY_METHOD(NSImage, setAccessibilityDescription, 0)
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NEW_RECEIVER(NSUserActivity)
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ADD_UNARY_METHOD(NSUserActivity, setTitle, 0)
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NEW_RECEIVER(NSPathControlItem)
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ADD_UNARY_METHOD(NSPathControlItem, setTitle, 0)
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NEW_RECEIVER(NSCell)
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ADD_UNARY_METHOD(NSCell, initTextCell, 0)
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ADD_UNARY_METHOD(NSCell, setTitle, 0)
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ADD_UNARY_METHOD(NSCell, setStringValue, 0)
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NEW_RECEIVER(NSPathControl)
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ADD_UNARY_METHOD(NSPathControl, setPlaceholderString, 0)
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NEW_RECEIVER(UIAccessibility)
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ADD_UNARY_METHOD(UIAccessibility, setAccessibilityLabel, 0)
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ADD_UNARY_METHOD(UIAccessibility, setAccessibilityHint, 0)
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ADD_UNARY_METHOD(UIAccessibility, setAccessibilityValue, 0)
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NEW_RECEIVER(NSTableColumn)
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ADD_UNARY_METHOD(NSTableColumn, setTitle, 0)
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ADD_UNARY_METHOD(NSTableColumn, setHeaderToolTip, 0)
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NEW_RECEIVER(NSSegmentedControl)
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IdentifierInfo *setLabelNSSegmentedControl[] = {
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&Ctx.Idents.get("setLabel"), &Ctx.Idents.get("forSegment")};
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ADD_METHOD(NSSegmentedControl, setLabelNSSegmentedControl, 2, 0)
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IdentifierInfo *setToolTipNSSegmentedControl[] = {
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&Ctx.Idents.get("setToolTip"), &Ctx.Idents.get("forSegment")};
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ADD_METHOD(NSSegmentedControl, setToolTipNSSegmentedControl, 2, 0)
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NEW_RECEIVER(NSButtonCell)
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ADD_UNARY_METHOD(NSButtonCell, setTitle, 0)
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ADD_UNARY_METHOD(NSButtonCell, setAlternateTitle, 0)
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NEW_RECEIVER(NSDatePickerCell)
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ADD_UNARY_METHOD(NSDatePickerCell, initTextCell, 0)
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NEW_RECEIVER(NSSliderCell)
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ADD_UNARY_METHOD(NSSliderCell, setTitle, 0)
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NEW_RECEIVER(NSControl)
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ADD_UNARY_METHOD(NSControl, setStringValue, 0)
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NEW_RECEIVER(NSAccessibility)
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ADD_UNARY_METHOD(NSAccessibility, setAccessibilityValueDescription, 0)
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ADD_UNARY_METHOD(NSAccessibility, setAccessibilityLabel, 0)
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ADD_UNARY_METHOD(NSAccessibility, setAccessibilityTitle, 0)
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ADD_UNARY_METHOD(NSAccessibility, setAccessibilityPlaceholderValue, 0)
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ADD_UNARY_METHOD(NSAccessibility, setAccessibilityHelp, 0)
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NEW_RECEIVER(NSMatrix)
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IdentifierInfo *setToolTipNSMatrix[] = {&Ctx.Idents.get("setToolTip"),
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&Ctx.Idents.get("forCell")};
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ADD_METHOD(NSMatrix, setToolTipNSMatrix, 2, 0)
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NEW_RECEIVER(NSPrintPanel)
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ADD_UNARY_METHOD(NSPrintPanel, setDefaultButtonTitle, 0)
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NEW_RECEIVER(UILocalNotification)
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ADD_UNARY_METHOD(UILocalNotification, setAlertBody, 0)
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ADD_UNARY_METHOD(UILocalNotification, setAlertAction, 0)
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ADD_UNARY_METHOD(UILocalNotification, setAlertTitle, 0)
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NEW_RECEIVER(NSSlider)
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ADD_UNARY_METHOD(NSSlider, setTitle, 0)
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NEW_RECEIVER(UIMenuItem)
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IdentifierInfo *initWithTitleUIMenuItem[] = {&Ctx.Idents.get("initWithTitle"),
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&Ctx.Idents.get("action")};
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ADD_METHOD(UIMenuItem, initWithTitleUIMenuItem, 2, 0)
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ADD_UNARY_METHOD(UIMenuItem, setTitle, 0)
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NEW_RECEIVER(UIAlertController)
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IdentifierInfo *alertControllerWithTitleUIAlertController[] = {
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&Ctx.Idents.get("alertControllerWithTitle"), &Ctx.Idents.get("message"),
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&Ctx.Idents.get("preferredStyle")};
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ADD_METHOD(UIAlertController, alertControllerWithTitleUIAlertController, 3, 1)
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ADD_UNARY_METHOD(UIAlertController, setTitle, 0)
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ADD_UNARY_METHOD(UIAlertController, setMessage, 0)
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NEW_RECEIVER(UIApplicationShortcutItem)
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IdentifierInfo *initWithTypeUIApplicationShortcutItemIcon[] = {
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&Ctx.Idents.get("initWithType"), &Ctx.Idents.get("localizedTitle"),
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&Ctx.Idents.get("localizedSubtitle"), &Ctx.Idents.get("icon"),
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&Ctx.Idents.get("userInfo")};
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ADD_METHOD(UIApplicationShortcutItem,
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initWithTypeUIApplicationShortcutItemIcon, 5, 1)
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IdentifierInfo *initWithTypeUIApplicationShortcutItem[] = {
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&Ctx.Idents.get("initWithType"), &Ctx.Idents.get("localizedTitle")};
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ADD_METHOD(UIApplicationShortcutItem, initWithTypeUIApplicationShortcutItem,
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2, 1)
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NEW_RECEIVER(UIActionSheet)
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IdentifierInfo *initWithTitleUIActionSheet[] = {
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&Ctx.Idents.get("initWithTitle"), &Ctx.Idents.get("delegate"),
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&Ctx.Idents.get("cancelButtonTitle"),
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&Ctx.Idents.get("destructiveButtonTitle"),
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&Ctx.Idents.get("otherButtonTitles")};
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ADD_METHOD(UIActionSheet, initWithTitleUIActionSheet, 5, 0)
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ADD_UNARY_METHOD(UIActionSheet, addButtonWithTitle, 0)
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ADD_UNARY_METHOD(UIActionSheet, setTitle, 0)
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NEW_RECEIVER(UIAccessibilityCustomAction)
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IdentifierInfo *initWithNameUIAccessibilityCustomAction[] = {
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&Ctx.Idents.get("initWithName"), &Ctx.Idents.get("target"),
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&Ctx.Idents.get("selector")};
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ADD_METHOD(UIAccessibilityCustomAction,
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initWithNameUIAccessibilityCustomAction, 3, 0)
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ADD_UNARY_METHOD(UIAccessibilityCustomAction, setName, 0)
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NEW_RECEIVER(UISearchBar)
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ADD_UNARY_METHOD(UISearchBar, setText, 0)
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ADD_UNARY_METHOD(UISearchBar, setPrompt, 0)
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ADD_UNARY_METHOD(UISearchBar, setPlaceholder, 0)
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NEW_RECEIVER(UIBarItem)
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ADD_UNARY_METHOD(UIBarItem, setTitle, 0)
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NEW_RECEIVER(UITextView)
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ADD_UNARY_METHOD(UITextView, setText, 0)
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NEW_RECEIVER(NSView)
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ADD_UNARY_METHOD(NSView, setToolTip, 0)
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NEW_RECEIVER(NSTextField)
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ADD_UNARY_METHOD(NSTextField, setPlaceholderString, 0)
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ADD_UNARY_METHOD(NSTextField, textFieldWithString, 0)
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ADD_UNARY_METHOD(NSTextField, wrappingLabelWithString, 0)
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ADD_UNARY_METHOD(NSTextField, labelWithString, 0)
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NEW_RECEIVER(NSAttributedString)
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ADD_UNARY_METHOD(NSAttributedString, initWithString, 0)
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IdentifierInfo *initWithStringNSAttributedString[] = {
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&Ctx.Idents.get("initWithString"), &Ctx.Idents.get("attributes")};
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ADD_METHOD(NSAttributedString, initWithStringNSAttributedString, 2, 0)
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NEW_RECEIVER(NSText)
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ADD_UNARY_METHOD(NSText, setString, 0)
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NEW_RECEIVER(UIKeyCommand)
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IdentifierInfo *keyCommandWithInputUIKeyCommand[] = {
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&Ctx.Idents.get("keyCommandWithInput"), &Ctx.Idents.get("modifierFlags"),
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&Ctx.Idents.get("action"), &Ctx.Idents.get("discoverabilityTitle")};
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ADD_METHOD(UIKeyCommand, keyCommandWithInputUIKeyCommand, 4, 3)
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ADD_UNARY_METHOD(UIKeyCommand, setDiscoverabilityTitle, 0)
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NEW_RECEIVER(UILabel)
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ADD_UNARY_METHOD(UILabel, setText, 0)
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NEW_RECEIVER(NSAlert)
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IdentifierInfo *alertWithMessageTextNSAlert[] = {
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&Ctx.Idents.get("alertWithMessageText"), &Ctx.Idents.get("defaultButton"),
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&Ctx.Idents.get("alternateButton"), &Ctx.Idents.get("otherButton"),
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&Ctx.Idents.get("informativeTextWithFormat")};
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ADD_METHOD(NSAlert, alertWithMessageTextNSAlert, 5, 0)
|
|
ADD_UNARY_METHOD(NSAlert, addButtonWithTitle, 0)
|
|
ADD_UNARY_METHOD(NSAlert, setMessageText, 0)
|
|
ADD_UNARY_METHOD(NSAlert, setInformativeText, 0)
|
|
ADD_UNARY_METHOD(NSAlert, setHelpAnchor, 0)
|
|
|
|
NEW_RECEIVER(UIMutableApplicationShortcutItem)
|
|
ADD_UNARY_METHOD(UIMutableApplicationShortcutItem, setLocalizedTitle, 0)
|
|
ADD_UNARY_METHOD(UIMutableApplicationShortcutItem, setLocalizedSubtitle, 0)
|
|
|
|
NEW_RECEIVER(UIButton)
|
|
IdentifierInfo *setTitleUIButton[] = {&Ctx.Idents.get("setTitle"),
|
|
&Ctx.Idents.get("forState")};
|
|
ADD_METHOD(UIButton, setTitleUIButton, 2, 0)
|
|
|
|
NEW_RECEIVER(NSWindow)
|
|
ADD_UNARY_METHOD(NSWindow, setTitle, 0)
|
|
IdentifierInfo *minFrameWidthWithTitleNSWindow[] = {
|
|
&Ctx.Idents.get("minFrameWidthWithTitle"), &Ctx.Idents.get("styleMask")};
|
|
ADD_METHOD(NSWindow, minFrameWidthWithTitleNSWindow, 2, 0)
|
|
ADD_UNARY_METHOD(NSWindow, setMiniwindowTitle, 0)
|
|
|
|
NEW_RECEIVER(NSPathCell)
|
|
ADD_UNARY_METHOD(NSPathCell, setPlaceholderString, 0)
|
|
|
|
NEW_RECEIVER(UIDocumentMenuViewController)
|
|
IdentifierInfo *addOptionWithTitleUIDocumentMenuViewController[] = {
|
|
&Ctx.Idents.get("addOptionWithTitle"), &Ctx.Idents.get("image"),
|
|
&Ctx.Idents.get("order"), &Ctx.Idents.get("handler")};
|
|
ADD_METHOD(UIDocumentMenuViewController,
|
|
addOptionWithTitleUIDocumentMenuViewController, 4, 0)
|
|
|
|
NEW_RECEIVER(UINavigationItem)
|
|
ADD_UNARY_METHOD(UINavigationItem, initWithTitle, 0)
|
|
ADD_UNARY_METHOD(UINavigationItem, setTitle, 0)
|
|
ADD_UNARY_METHOD(UINavigationItem, setPrompt, 0)
|
|
|
|
NEW_RECEIVER(UIAlertView)
|
|
IdentifierInfo *initWithTitleUIAlertView[] = {
|
|
&Ctx.Idents.get("initWithTitle"), &Ctx.Idents.get("message"),
|
|
&Ctx.Idents.get("delegate"), &Ctx.Idents.get("cancelButtonTitle"),
|
|
&Ctx.Idents.get("otherButtonTitles")};
|
|
ADD_METHOD(UIAlertView, initWithTitleUIAlertView, 5, 0)
|
|
ADD_UNARY_METHOD(UIAlertView, addButtonWithTitle, 0)
|
|
ADD_UNARY_METHOD(UIAlertView, setTitle, 0)
|
|
ADD_UNARY_METHOD(UIAlertView, setMessage, 0)
|
|
|
|
NEW_RECEIVER(NSFormCell)
|
|
ADD_UNARY_METHOD(NSFormCell, initTextCell, 0)
|
|
ADD_UNARY_METHOD(NSFormCell, setTitle, 0)
|
|
ADD_UNARY_METHOD(NSFormCell, setPlaceholderString, 0)
|
|
|
|
NEW_RECEIVER(NSUserNotification)
|
|
ADD_UNARY_METHOD(NSUserNotification, setTitle, 0)
|
|
ADD_UNARY_METHOD(NSUserNotification, setSubtitle, 0)
|
|
ADD_UNARY_METHOD(NSUserNotification, setInformativeText, 0)
|
|
ADD_UNARY_METHOD(NSUserNotification, setActionButtonTitle, 0)
|
|
ADD_UNARY_METHOD(NSUserNotification, setOtherButtonTitle, 0)
|
|
ADD_UNARY_METHOD(NSUserNotification, setResponsePlaceholder, 0)
|
|
|
|
NEW_RECEIVER(NSToolbarItem)
|
|
ADD_UNARY_METHOD(NSToolbarItem, setLabel, 0)
|
|
ADD_UNARY_METHOD(NSToolbarItem, setPaletteLabel, 0)
|
|
ADD_UNARY_METHOD(NSToolbarItem, setToolTip, 0)
|
|
|
|
NEW_RECEIVER(NSProgress)
|
|
ADD_UNARY_METHOD(NSProgress, setLocalizedDescription, 0)
|
|
ADD_UNARY_METHOD(NSProgress, setLocalizedAdditionalDescription, 0)
|
|
|
|
NEW_RECEIVER(NSSegmentedCell)
|
|
IdentifierInfo *setLabelNSSegmentedCell[] = {&Ctx.Idents.get("setLabel"),
|
|
&Ctx.Idents.get("forSegment")};
|
|
ADD_METHOD(NSSegmentedCell, setLabelNSSegmentedCell, 2, 0)
|
|
IdentifierInfo *setToolTipNSSegmentedCell[] = {&Ctx.Idents.get("setToolTip"),
|
|
&Ctx.Idents.get("forSegment")};
|
|
ADD_METHOD(NSSegmentedCell, setToolTipNSSegmentedCell, 2, 0)
|
|
|
|
NEW_RECEIVER(NSUndoManager)
|
|
ADD_UNARY_METHOD(NSUndoManager, setActionName, 0)
|
|
ADD_UNARY_METHOD(NSUndoManager, undoMenuTitleForUndoActionName, 0)
|
|
ADD_UNARY_METHOD(NSUndoManager, redoMenuTitleForUndoActionName, 0)
|
|
|
|
NEW_RECEIVER(NSMenuItem)
|
|
IdentifierInfo *initWithTitleNSMenuItem[] = {
|
|
&Ctx.Idents.get("initWithTitle"), &Ctx.Idents.get("action"),
|
|
&Ctx.Idents.get("keyEquivalent")};
|
|
ADD_METHOD(NSMenuItem, initWithTitleNSMenuItem, 3, 0)
|
|
ADD_UNARY_METHOD(NSMenuItem, setTitle, 0)
|
|
ADD_UNARY_METHOD(NSMenuItem, setToolTip, 0)
|
|
|
|
NEW_RECEIVER(NSPopUpButtonCell)
|
|
IdentifierInfo *initTextCellNSPopUpButtonCell[] = {
|
|
&Ctx.Idents.get("initTextCell"), &Ctx.Idents.get("pullsDown")};
|
|
ADD_METHOD(NSPopUpButtonCell, initTextCellNSPopUpButtonCell, 2, 0)
|
|
ADD_UNARY_METHOD(NSPopUpButtonCell, addItemWithTitle, 0)
|
|
IdentifierInfo *insertItemWithTitleNSPopUpButtonCell[] = {
|
|
&Ctx.Idents.get("insertItemWithTitle"), &Ctx.Idents.get("atIndex")};
|
|
ADD_METHOD(NSPopUpButtonCell, insertItemWithTitleNSPopUpButtonCell, 2, 0)
|
|
ADD_UNARY_METHOD(NSPopUpButtonCell, removeItemWithTitle, 0)
|
|
ADD_UNARY_METHOD(NSPopUpButtonCell, selectItemWithTitle, 0)
|
|
ADD_UNARY_METHOD(NSPopUpButtonCell, setTitle, 0)
|
|
|
|
NEW_RECEIVER(NSViewController)
|
|
ADD_UNARY_METHOD(NSViewController, setTitle, 0)
|
|
|
|
NEW_RECEIVER(NSMenu)
|
|
ADD_UNARY_METHOD(NSMenu, initWithTitle, 0)
|
|
IdentifierInfo *insertItemWithTitleNSMenu[] = {
|
|
&Ctx.Idents.get("insertItemWithTitle"), &Ctx.Idents.get("action"),
|
|
&Ctx.Idents.get("keyEquivalent"), &Ctx.Idents.get("atIndex")};
|
|
ADD_METHOD(NSMenu, insertItemWithTitleNSMenu, 4, 0)
|
|
IdentifierInfo *addItemWithTitleNSMenu[] = {
|
|
&Ctx.Idents.get("addItemWithTitle"), &Ctx.Idents.get("action"),
|
|
&Ctx.Idents.get("keyEquivalent")};
|
|
ADD_METHOD(NSMenu, addItemWithTitleNSMenu, 3, 0)
|
|
ADD_UNARY_METHOD(NSMenu, setTitle, 0)
|
|
|
|
NEW_RECEIVER(UIMutableUserNotificationAction)
|
|
ADD_UNARY_METHOD(UIMutableUserNotificationAction, setTitle, 0)
|
|
|
|
NEW_RECEIVER(NSForm)
|
|
ADD_UNARY_METHOD(NSForm, addEntry, 0)
|
|
IdentifierInfo *insertEntryNSForm[] = {&Ctx.Idents.get("insertEntry"),
|
|
&Ctx.Idents.get("atIndex")};
|
|
ADD_METHOD(NSForm, insertEntryNSForm, 2, 0)
|
|
|
|
NEW_RECEIVER(NSTextFieldCell)
|
|
ADD_UNARY_METHOD(NSTextFieldCell, setPlaceholderString, 0)
|
|
|
|
NEW_RECEIVER(NSUserNotificationAction)
|
|
IdentifierInfo *actionWithIdentifierNSUserNotificationAction[] = {
|
|
&Ctx.Idents.get("actionWithIdentifier"), &Ctx.Idents.get("title")};
|
|
ADD_METHOD(NSUserNotificationAction,
|
|
actionWithIdentifierNSUserNotificationAction, 2, 1)
|
|
|
|
NEW_RECEIVER(UITextField)
|
|
ADD_UNARY_METHOD(UITextField, setText, 0)
|
|
ADD_UNARY_METHOD(UITextField, setPlaceholder, 0)
|
|
|
|
NEW_RECEIVER(UIBarButtonItem)
|
|
IdentifierInfo *initWithTitleUIBarButtonItem[] = {
|
|
&Ctx.Idents.get("initWithTitle"), &Ctx.Idents.get("style"),
|
|
&Ctx.Idents.get("target"), &Ctx.Idents.get("action")};
|
|
ADD_METHOD(UIBarButtonItem, initWithTitleUIBarButtonItem, 4, 0)
|
|
|
|
NEW_RECEIVER(UIViewController)
|
|
ADD_UNARY_METHOD(UIViewController, setTitle, 0)
|
|
|
|
NEW_RECEIVER(UISegmentedControl)
|
|
IdentifierInfo *insertSegmentWithTitleUISegmentedControl[] = {
|
|
&Ctx.Idents.get("insertSegmentWithTitle"), &Ctx.Idents.get("atIndex"),
|
|
&Ctx.Idents.get("animated")};
|
|
ADD_METHOD(UISegmentedControl, insertSegmentWithTitleUISegmentedControl, 3, 0)
|
|
IdentifierInfo *setTitleUISegmentedControl[] = {
|
|
&Ctx.Idents.get("setTitle"), &Ctx.Idents.get("forSegmentAtIndex")};
|
|
ADD_METHOD(UISegmentedControl, setTitleUISegmentedControl, 2, 0)
|
|
|
|
NEW_RECEIVER(NSAccessibilityCustomRotorItemResult)
|
|
IdentifierInfo
|
|
*initWithItemLoadingTokenNSAccessibilityCustomRotorItemResult[] = {
|
|
&Ctx.Idents.get("initWithItemLoadingToken"),
|
|
&Ctx.Idents.get("customLabel")};
|
|
ADD_METHOD(NSAccessibilityCustomRotorItemResult,
|
|
initWithItemLoadingTokenNSAccessibilityCustomRotorItemResult, 2, 1)
|
|
ADD_UNARY_METHOD(NSAccessibilityCustomRotorItemResult, setCustomLabel, 0)
|
|
|
|
NEW_RECEIVER(UIContextualAction)
|
|
IdentifierInfo *contextualActionWithStyleUIContextualAction[] = {
|
|
&Ctx.Idents.get("contextualActionWithStyle"), &Ctx.Idents.get("title"),
|
|
&Ctx.Idents.get("handler")};
|
|
ADD_METHOD(UIContextualAction, contextualActionWithStyleUIContextualAction, 3,
|
|
1)
|
|
ADD_UNARY_METHOD(UIContextualAction, setTitle, 0)
|
|
|
|
NEW_RECEIVER(NSAccessibilityCustomRotor)
|
|
IdentifierInfo *initWithLabelNSAccessibilityCustomRotor[] = {
|
|
&Ctx.Idents.get("initWithLabel"), &Ctx.Idents.get("itemSearchDelegate")};
|
|
ADD_METHOD(NSAccessibilityCustomRotor,
|
|
initWithLabelNSAccessibilityCustomRotor, 2, 0)
|
|
ADD_UNARY_METHOD(NSAccessibilityCustomRotor, setLabel, 0)
|
|
|
|
NEW_RECEIVER(NSWindowTab)
|
|
ADD_UNARY_METHOD(NSWindowTab, setTitle, 0)
|
|
ADD_UNARY_METHOD(NSWindowTab, setToolTip, 0)
|
|
|
|
NEW_RECEIVER(NSAccessibilityCustomAction)
|
|
IdentifierInfo *initWithNameNSAccessibilityCustomAction[] = {
|
|
&Ctx.Idents.get("initWithName"), &Ctx.Idents.get("handler")};
|
|
ADD_METHOD(NSAccessibilityCustomAction,
|
|
initWithNameNSAccessibilityCustomAction, 2, 0)
|
|
IdentifierInfo *initWithNameTargetNSAccessibilityCustomAction[] = {
|
|
&Ctx.Idents.get("initWithName"), &Ctx.Idents.get("target"),
|
|
&Ctx.Idents.get("selector")};
|
|
ADD_METHOD(NSAccessibilityCustomAction,
|
|
initWithNameTargetNSAccessibilityCustomAction, 3, 0)
|
|
ADD_UNARY_METHOD(NSAccessibilityCustomAction, setName, 0)
|
|
}
|
|
|
|
#define LSF_INSERT(function_name) LSF.insert(&Ctx.Idents.get(function_name));
|
|
#define LSM_INSERT_NULLARY(receiver, method_name) \
|
|
LSM.insert({&Ctx.Idents.get(receiver), Ctx.Selectors.getNullarySelector( \
|
|
&Ctx.Idents.get(method_name))});
|
|
#define LSM_INSERT_UNARY(receiver, method_name) \
|
|
LSM.insert({&Ctx.Idents.get(receiver), \
|
|
Ctx.Selectors.getUnarySelector(&Ctx.Idents.get(method_name))});
|
|
#define LSM_INSERT_SELECTOR(receiver, method_list, arguments) \
|
|
LSM.insert({&Ctx.Idents.get(receiver), \
|
|
Ctx.Selectors.getSelector(arguments, method_list)});
|
|
|
|
/// Initializes a list of methods and C functions that return a localized string
|
|
void NonLocalizedStringChecker::initLocStringsMethods(ASTContext &Ctx) const {
|
|
if (!LSM.empty())
|
|
return;
|
|
|
|
IdentifierInfo *LocalizedStringMacro[] = {
|
|
&Ctx.Idents.get("localizedStringForKey"), &Ctx.Idents.get("value"),
|
|
&Ctx.Idents.get("table")};
|
|
LSM_INSERT_SELECTOR("NSBundle", LocalizedStringMacro, 3)
|
|
LSM_INSERT_UNARY("NSDateFormatter", "stringFromDate")
|
|
IdentifierInfo *LocalizedStringFromDate[] = {
|
|
&Ctx.Idents.get("localizedStringFromDate"), &Ctx.Idents.get("dateStyle"),
|
|
&Ctx.Idents.get("timeStyle")};
|
|
LSM_INSERT_SELECTOR("NSDateFormatter", LocalizedStringFromDate, 3)
|
|
LSM_INSERT_UNARY("NSNumberFormatter", "stringFromNumber")
|
|
LSM_INSERT_NULLARY("UITextField", "text")
|
|
LSM_INSERT_NULLARY("UITextView", "text")
|
|
LSM_INSERT_NULLARY("UILabel", "text")
|
|
|
|
LSF_INSERT("CFDateFormatterCreateStringWithDate");
|
|
LSF_INSERT("CFDateFormatterCreateStringWithAbsoluteTime");
|
|
LSF_INSERT("CFNumberFormatterCreateStringWithNumber");
|
|
}
|
|
|
|
/// Checks to see if the method / function declaration includes
|
|
/// __attribute__((annotate("returns_localized_nsstring")))
|
|
bool NonLocalizedStringChecker::isAnnotatedAsReturningLocalized(
|
|
const Decl *D) const {
|
|
if (!D)
|
|
return false;
|
|
return std::any_of(
|
|
D->specific_attr_begin<AnnotateAttr>(),
|
|
D->specific_attr_end<AnnotateAttr>(), [](const AnnotateAttr *Ann) {
|
|
return Ann->getAnnotation() == "returns_localized_nsstring";
|
|
});
|
|
}
|
|
|
|
/// Checks to see if the method / function declaration includes
|
|
/// __attribute__((annotate("takes_localized_nsstring")))
|
|
bool NonLocalizedStringChecker::isAnnotatedAsTakingLocalized(
|
|
const Decl *D) const {
|
|
if (!D)
|
|
return false;
|
|
return std::any_of(
|
|
D->specific_attr_begin<AnnotateAttr>(),
|
|
D->specific_attr_end<AnnotateAttr>(), [](const AnnotateAttr *Ann) {
|
|
return Ann->getAnnotation() == "takes_localized_nsstring";
|
|
});
|
|
}
|
|
|
|
/// Returns true if the given SVal is marked as Localized in the program state
|
|
bool NonLocalizedStringChecker::hasLocalizedState(SVal S,
|
|
CheckerContext &C) const {
|
|
const MemRegion *mt = S.getAsRegion();
|
|
if (mt) {
|
|
const LocalizedState *LS = C.getState()->get<LocalizedMemMap>(mt);
|
|
if (LS && LS->isLocalized())
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// Returns true if the given SVal is marked as NonLocalized in the program
|
|
/// state
|
|
bool NonLocalizedStringChecker::hasNonLocalizedState(SVal S,
|
|
CheckerContext &C) const {
|
|
const MemRegion *mt = S.getAsRegion();
|
|
if (mt) {
|
|
const LocalizedState *LS = C.getState()->get<LocalizedMemMap>(mt);
|
|
if (LS && LS->isNonLocalized())
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// Marks the given SVal as Localized in the program state
|
|
void NonLocalizedStringChecker::setLocalizedState(const SVal S,
|
|
CheckerContext &C) const {
|
|
const MemRegion *mt = S.getAsRegion();
|
|
if (mt) {
|
|
ProgramStateRef State =
|
|
C.getState()->set<LocalizedMemMap>(mt, LocalizedState::getLocalized());
|
|
C.addTransition(State);
|
|
}
|
|
}
|
|
|
|
/// Marks the given SVal as NonLocalized in the program state
|
|
void NonLocalizedStringChecker::setNonLocalizedState(const SVal S,
|
|
CheckerContext &C) const {
|
|
const MemRegion *mt = S.getAsRegion();
|
|
if (mt) {
|
|
ProgramStateRef State = C.getState()->set<LocalizedMemMap>(
|
|
mt, LocalizedState::getNonLocalized());
|
|
C.addTransition(State);
|
|
}
|
|
}
|
|
|
|
|
|
static bool isDebuggingName(std::string name) {
|
|
return StringRef(name).lower().find("debug") != StringRef::npos;
|
|
}
|
|
|
|
/// Returns true when, heuristically, the analyzer may be analyzing debugging
|
|
/// code. We use this to suppress localization diagnostics in un-localized user
|
|
/// interfaces that are only used for debugging and are therefore not user
|
|
/// facing.
|
|
static bool isDebuggingContext(CheckerContext &C) {
|
|
const Decl *D = C.getCurrentAnalysisDeclContext()->getDecl();
|
|
if (!D)
|
|
return false;
|
|
|
|
if (auto *ND = dyn_cast<NamedDecl>(D)) {
|
|
if (isDebuggingName(ND->getNameAsString()))
|
|
return true;
|
|
}
|
|
|
|
const DeclContext *DC = D->getDeclContext();
|
|
|
|
if (auto *CD = dyn_cast<ObjCContainerDecl>(DC)) {
|
|
if (isDebuggingName(CD->getNameAsString()))
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
/// Reports a localization error for the passed in method call and SVal
|
|
void NonLocalizedStringChecker::reportLocalizationError(
|
|
SVal S, const CallEvent &M, CheckerContext &C, int argumentNumber) const {
|
|
|
|
// Don't warn about localization errors in classes and methods that
|
|
// may be debug code.
|
|
if (isDebuggingContext(C))
|
|
return;
|
|
|
|
static CheckerProgramPointTag Tag("NonLocalizedStringChecker",
|
|
"UnlocalizedString");
|
|
ExplodedNode *ErrNode = C.addTransition(C.getState(), C.getPredecessor(), &Tag);
|
|
|
|
if (!ErrNode)
|
|
return;
|
|
|
|
// Generate the bug report.
|
|
auto R = std::make_unique<PathSensitiveBugReport>(
|
|
*BT, "User-facing text should use localized string macro", ErrNode);
|
|
if (argumentNumber) {
|
|
R->addRange(M.getArgExpr(argumentNumber - 1)->getSourceRange());
|
|
} else {
|
|
R->addRange(M.getSourceRange());
|
|
}
|
|
R->markInteresting(S);
|
|
|
|
const MemRegion *StringRegion = S.getAsRegion();
|
|
if (StringRegion)
|
|
R->addVisitor(std::make_unique<NonLocalizedStringBRVisitor>(StringRegion));
|
|
|
|
C.emitReport(std::move(R));
|
|
}
|
|
|
|
/// Returns the argument number requiring localized string if it exists
|
|
/// otherwise, returns -1
|
|
int NonLocalizedStringChecker::getLocalizedArgumentForSelector(
|
|
const IdentifierInfo *Receiver, Selector S) const {
|
|
auto method = UIMethods.find(Receiver);
|
|
|
|
if (method == UIMethods.end())
|
|
return -1;
|
|
|
|
auto argumentIterator = method->getSecond().find(S);
|
|
|
|
if (argumentIterator == method->getSecond().end())
|
|
return -1;
|
|
|
|
int argumentNumber = argumentIterator->getSecond();
|
|
return argumentNumber;
|
|
}
|
|
|
|
/// Check if the string being passed in has NonLocalized state
|
|
void NonLocalizedStringChecker::checkPreObjCMessage(const ObjCMethodCall &msg,
|
|
CheckerContext &C) const {
|
|
initUIMethods(C.getASTContext());
|
|
|
|
const ObjCInterfaceDecl *OD = msg.getReceiverInterface();
|
|
if (!OD)
|
|
return;
|
|
const IdentifierInfo *odInfo = OD->getIdentifier();
|
|
|
|
Selector S = msg.getSelector();
|
|
|
|
std::string SelectorString = S.getAsString();
|
|
StringRef SelectorName = SelectorString;
|
|
assert(!SelectorName.empty());
|
|
|
|
if (odInfo->isStr("NSString")) {
|
|
// Handle the case where the receiver is an NSString
|
|
// These special NSString methods draw to the screen
|
|
|
|
if (!(SelectorName.startswith("drawAtPoint") ||
|
|
SelectorName.startswith("drawInRect") ||
|
|
SelectorName.startswith("drawWithRect")))
|
|
return;
|
|
|
|
SVal svTitle = msg.getReceiverSVal();
|
|
|
|
bool isNonLocalized = hasNonLocalizedState(svTitle, C);
|
|
|
|
if (isNonLocalized) {
|
|
reportLocalizationError(svTitle, msg, C);
|
|
}
|
|
}
|
|
|
|
int argumentNumber = getLocalizedArgumentForSelector(odInfo, S);
|
|
// Go up each hierarchy of superclasses and their protocols
|
|
while (argumentNumber < 0 && OD->getSuperClass() != nullptr) {
|
|
for (const auto *P : OD->all_referenced_protocols()) {
|
|
argumentNumber = getLocalizedArgumentForSelector(P->getIdentifier(), S);
|
|
if (argumentNumber >= 0)
|
|
break;
|
|
}
|
|
if (argumentNumber < 0) {
|
|
OD = OD->getSuperClass();
|
|
argumentNumber = getLocalizedArgumentForSelector(OD->getIdentifier(), S);
|
|
}
|
|
}
|
|
|
|
if (argumentNumber < 0) { // There was no match in UIMethods
|
|
if (const Decl *D = msg.getDecl()) {
|
|
if (const ObjCMethodDecl *OMD = dyn_cast_or_null<ObjCMethodDecl>(D)) {
|
|
auto formals = OMD->parameters();
|
|
for (unsigned i = 0, ei = formals.size(); i != ei; ++i) {
|
|
if (isAnnotatedAsTakingLocalized(formals[i])) {
|
|
argumentNumber = i;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (argumentNumber < 0) // Still no match
|
|
return;
|
|
|
|
SVal svTitle = msg.getArgSVal(argumentNumber);
|
|
|
|
if (const ObjCStringRegion *SR =
|
|
dyn_cast_or_null<ObjCStringRegion>(svTitle.getAsRegion())) {
|
|
StringRef stringValue =
|
|
SR->getObjCStringLiteral()->getString()->getString();
|
|
if ((stringValue.trim().size() == 0 && stringValue.size() > 0) ||
|
|
stringValue.empty())
|
|
return;
|
|
if (!IsAggressive && llvm::sys::unicode::columnWidthUTF8(stringValue) < 2)
|
|
return;
|
|
}
|
|
|
|
bool isNonLocalized = hasNonLocalizedState(svTitle, C);
|
|
|
|
if (isNonLocalized) {
|
|
reportLocalizationError(svTitle, msg, C, argumentNumber + 1);
|
|
}
|
|
}
|
|
|
|
void NonLocalizedStringChecker::checkPreCall(const CallEvent &Call,
|
|
CheckerContext &C) const {
|
|
const auto *FD = dyn_cast_or_null<FunctionDecl>(Call.getDecl());
|
|
if (!FD)
|
|
return;
|
|
|
|
auto formals = FD->parameters();
|
|
for (unsigned i = 0, ei = std::min(static_cast<unsigned>(formals.size()),
|
|
Call.getNumArgs()); i != ei; ++i) {
|
|
if (isAnnotatedAsTakingLocalized(formals[i])) {
|
|
auto actual = Call.getArgSVal(i);
|
|
if (hasNonLocalizedState(actual, C)) {
|
|
reportLocalizationError(actual, Call, C, i + 1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static inline bool isNSStringType(QualType T, ASTContext &Ctx) {
|
|
|
|
const ObjCObjectPointerType *PT = T->getAs<ObjCObjectPointerType>();
|
|
if (!PT)
|
|
return false;
|
|
|
|
ObjCInterfaceDecl *Cls = PT->getObjectType()->getInterface();
|
|
if (!Cls)
|
|
return false;
|
|
|
|
IdentifierInfo *ClsName = Cls->getIdentifier();
|
|
|
|
// FIXME: Should we walk the chain of classes?
|
|
return ClsName == &Ctx.Idents.get("NSString") ||
|
|
ClsName == &Ctx.Idents.get("NSMutableString");
|
|
}
|
|
|
|
/// Marks a string being returned by any call as localized
|
|
/// if it is in LocStringFunctions (LSF) or the function is annotated.
|
|
/// Otherwise, we mark it as NonLocalized (Aggressive) or
|
|
/// NonLocalized only if it is not backed by a SymRegion (Non-Aggressive),
|
|
/// basically leaving only string literals as NonLocalized.
|
|
void NonLocalizedStringChecker::checkPostCall(const CallEvent &Call,
|
|
CheckerContext &C) const {
|
|
initLocStringsMethods(C.getASTContext());
|
|
|
|
if (!Call.getOriginExpr())
|
|
return;
|
|
|
|
// Anything that takes in a localized NSString as an argument
|
|
// and returns an NSString will be assumed to be returning a
|
|
// localized NSString. (Counter: Incorrectly combining two LocalizedStrings)
|
|
const QualType RT = Call.getResultType();
|
|
if (isNSStringType(RT, C.getASTContext())) {
|
|
for (unsigned i = 0; i < Call.getNumArgs(); ++i) {
|
|
SVal argValue = Call.getArgSVal(i);
|
|
if (hasLocalizedState(argValue, C)) {
|
|
SVal sv = Call.getReturnValue();
|
|
setLocalizedState(sv, C);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
const Decl *D = Call.getDecl();
|
|
if (!D)
|
|
return;
|
|
|
|
const IdentifierInfo *Identifier = Call.getCalleeIdentifier();
|
|
|
|
SVal sv = Call.getReturnValue();
|
|
if (isAnnotatedAsReturningLocalized(D) || LSF.count(Identifier) != 0) {
|
|
setLocalizedState(sv, C);
|
|
} else if (isNSStringType(RT, C.getASTContext()) &&
|
|
!hasLocalizedState(sv, C)) {
|
|
if (IsAggressive) {
|
|
setNonLocalizedState(sv, C);
|
|
} else {
|
|
const SymbolicRegion *SymReg =
|
|
dyn_cast_or_null<SymbolicRegion>(sv.getAsRegion());
|
|
if (!SymReg)
|
|
setNonLocalizedState(sv, C);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Marks a string being returned by an ObjC method as localized
|
|
/// if it is in LocStringMethods or the method is annotated
|
|
void NonLocalizedStringChecker::checkPostObjCMessage(const ObjCMethodCall &msg,
|
|
CheckerContext &C) const {
|
|
initLocStringsMethods(C.getASTContext());
|
|
|
|
if (!msg.isInstanceMessage())
|
|
return;
|
|
|
|
const ObjCInterfaceDecl *OD = msg.getReceiverInterface();
|
|
if (!OD)
|
|
return;
|
|
const IdentifierInfo *odInfo = OD->getIdentifier();
|
|
|
|
Selector S = msg.getSelector();
|
|
std::string SelectorName = S.getAsString();
|
|
|
|
std::pair<const IdentifierInfo *, Selector> MethodDescription = {odInfo, S};
|
|
|
|
if (LSM.count(MethodDescription) ||
|
|
isAnnotatedAsReturningLocalized(msg.getDecl())) {
|
|
SVal sv = msg.getReturnValue();
|
|
setLocalizedState(sv, C);
|
|
}
|
|
}
|
|
|
|
/// Marks all empty string literals as localized
|
|
void NonLocalizedStringChecker::checkPostStmt(const ObjCStringLiteral *SL,
|
|
CheckerContext &C) const {
|
|
SVal sv = C.getSVal(SL);
|
|
setNonLocalizedState(sv, C);
|
|
}
|
|
|
|
PathDiagnosticPieceRef
|
|
NonLocalizedStringBRVisitor::VisitNode(const ExplodedNode *Succ,
|
|
BugReporterContext &BRC,
|
|
PathSensitiveBugReport &BR) {
|
|
if (Satisfied)
|
|
return nullptr;
|
|
|
|
Optional<StmtPoint> Point = Succ->getLocation().getAs<StmtPoint>();
|
|
if (!Point.hasValue())
|
|
return nullptr;
|
|
|
|
auto *LiteralExpr = dyn_cast<ObjCStringLiteral>(Point->getStmt());
|
|
if (!LiteralExpr)
|
|
return nullptr;
|
|
|
|
SVal LiteralSVal = Succ->getSVal(LiteralExpr);
|
|
if (LiteralSVal.getAsRegion() != NonLocalizedString)
|
|
return nullptr;
|
|
|
|
Satisfied = true;
|
|
|
|
PathDiagnosticLocation L =
|
|
PathDiagnosticLocation::create(*Point, BRC.getSourceManager());
|
|
|
|
if (!L.isValid() || !L.asLocation().isValid())
|
|
return nullptr;
|
|
|
|
auto Piece = std::make_shared<PathDiagnosticEventPiece>(
|
|
L, "Non-localized string literal here");
|
|
Piece->addRange(LiteralExpr->getSourceRange());
|
|
|
|
return std::move(Piece);
|
|
}
|
|
|
|
namespace {
|
|
class EmptyLocalizationContextChecker
|
|
: public Checker<check::ASTDecl<ObjCImplementationDecl>> {
|
|
|
|
// A helper class, which walks the AST
|
|
class MethodCrawler : public ConstStmtVisitor<MethodCrawler> {
|
|
const ObjCMethodDecl *MD;
|
|
BugReporter &BR;
|
|
AnalysisManager &Mgr;
|
|
const CheckerBase *Checker;
|
|
LocationOrAnalysisDeclContext DCtx;
|
|
|
|
public:
|
|
MethodCrawler(const ObjCMethodDecl *InMD, BugReporter &InBR,
|
|
const CheckerBase *Checker, AnalysisManager &InMgr,
|
|
AnalysisDeclContext *InDCtx)
|
|
: MD(InMD), BR(InBR), Mgr(InMgr), Checker(Checker), DCtx(InDCtx) {}
|
|
|
|
void VisitStmt(const Stmt *S) { VisitChildren(S); }
|
|
|
|
void VisitObjCMessageExpr(const ObjCMessageExpr *ME);
|
|
|
|
void reportEmptyContextError(const ObjCMessageExpr *M) const;
|
|
|
|
void VisitChildren(const Stmt *S) {
|
|
for (const Stmt *Child : S->children()) {
|
|
if (Child)
|
|
this->Visit(Child);
|
|
}
|
|
}
|
|
};
|
|
|
|
public:
|
|
void checkASTDecl(const ObjCImplementationDecl *D, AnalysisManager &Mgr,
|
|
BugReporter &BR) const;
|
|
};
|
|
} // end anonymous namespace
|
|
|
|
void EmptyLocalizationContextChecker::checkASTDecl(
|
|
const ObjCImplementationDecl *D, AnalysisManager &Mgr,
|
|
BugReporter &BR) const {
|
|
|
|
for (const ObjCMethodDecl *M : D->methods()) {
|
|
AnalysisDeclContext *DCtx = Mgr.getAnalysisDeclContext(M);
|
|
|
|
const Stmt *Body = M->getBody();
|
|
if (!Body) {
|
|
assert(M->isSynthesizedAccessorStub());
|
|
continue;
|
|
}
|
|
|
|
MethodCrawler MC(M->getCanonicalDecl(), BR, this, Mgr, DCtx);
|
|
MC.VisitStmt(Body);
|
|
}
|
|
}
|
|
|
|
/// This check attempts to match these macros, assuming they are defined as
|
|
/// follows:
|
|
///
|
|
/// #define NSLocalizedString(key, comment) \
|
|
/// [[NSBundle mainBundle] localizedStringForKey:(key) value:@"" table:nil]
|
|
/// #define NSLocalizedStringFromTable(key, tbl, comment) \
|
|
/// [[NSBundle mainBundle] localizedStringForKey:(key) value:@"" table:(tbl)]
|
|
/// #define NSLocalizedStringFromTableInBundle(key, tbl, bundle, comment) \
|
|
/// [bundle localizedStringForKey:(key) value:@"" table:(tbl)]
|
|
/// #define NSLocalizedStringWithDefaultValue(key, tbl, bundle, val, comment)
|
|
///
|
|
/// We cannot use the path sensitive check because the macro argument we are
|
|
/// checking for (comment) is not used and thus not present in the AST,
|
|
/// so we use Lexer on the original macro call and retrieve the value of
|
|
/// the comment. If it's empty or nil, we raise a warning.
|
|
void EmptyLocalizationContextChecker::MethodCrawler::VisitObjCMessageExpr(
|
|
const ObjCMessageExpr *ME) {
|
|
|
|
// FIXME: We may be able to use PPCallbacks to check for empty context
|
|
// comments as part of preprocessing and avoid this re-lexing hack.
|
|
const ObjCInterfaceDecl *OD = ME->getReceiverInterface();
|
|
if (!OD)
|
|
return;
|
|
|
|
const IdentifierInfo *odInfo = OD->getIdentifier();
|
|
|
|
if (!(odInfo->isStr("NSBundle") &&
|
|
ME->getSelector().getAsString() ==
|
|
"localizedStringForKey:value:table:")) {
|
|
return;
|
|
}
|
|
|
|
SourceRange R = ME->getSourceRange();
|
|
if (!R.getBegin().isMacroID())
|
|
return;
|
|
|
|
// getImmediateMacroCallerLoc gets the location of the immediate macro
|
|
// caller, one level up the stack toward the initial macro typed into the
|
|
// source, so SL should point to the NSLocalizedString macro.
|
|
SourceLocation SL =
|
|
Mgr.getSourceManager().getImmediateMacroCallerLoc(R.getBegin());
|
|
std::pair<FileID, unsigned> SLInfo =
|
|
Mgr.getSourceManager().getDecomposedLoc(SL);
|
|
|
|
SrcMgr::SLocEntry SE = Mgr.getSourceManager().getSLocEntry(SLInfo.first);
|
|
|
|
// If NSLocalizedString macro is wrapped in another macro, we need to
|
|
// unwrap the expansion until we get to the NSLocalizedStringMacro.
|
|
while (SE.isExpansion()) {
|
|
SL = SE.getExpansion().getSpellingLoc();
|
|
SLInfo = Mgr.getSourceManager().getDecomposedLoc(SL);
|
|
SE = Mgr.getSourceManager().getSLocEntry(SLInfo.first);
|
|
}
|
|
|
|
llvm::Optional<llvm::MemoryBufferRef> BF =
|
|
Mgr.getSourceManager().getBufferOrNone(SLInfo.first, SL);
|
|
if (!BF)
|
|
return;
|
|
|
|
Lexer TheLexer(SL, LangOptions(), BF->getBufferStart(),
|
|
BF->getBufferStart() + SLInfo.second, BF->getBufferEnd());
|
|
|
|
Token I;
|
|
Token Result; // This will hold the token just before the last ')'
|
|
int p_count = 0; // This is for parenthesis matching
|
|
while (!TheLexer.LexFromRawLexer(I)) {
|
|
if (I.getKind() == tok::l_paren)
|
|
++p_count;
|
|
if (I.getKind() == tok::r_paren) {
|
|
if (p_count == 1)
|
|
break;
|
|
--p_count;
|
|
}
|
|
Result = I;
|
|
}
|
|
|
|
if (isAnyIdentifier(Result.getKind())) {
|
|
if (Result.getRawIdentifier().equals("nil")) {
|
|
reportEmptyContextError(ME);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!isStringLiteral(Result.getKind()))
|
|
return;
|
|
|
|
StringRef Comment =
|
|
StringRef(Result.getLiteralData(), Result.getLength()).trim('"');
|
|
|
|
if ((Comment.trim().size() == 0 && Comment.size() > 0) || // Is Whitespace
|
|
Comment.empty()) {
|
|
reportEmptyContextError(ME);
|
|
}
|
|
}
|
|
|
|
void EmptyLocalizationContextChecker::MethodCrawler::reportEmptyContextError(
|
|
const ObjCMessageExpr *ME) const {
|
|
// Generate the bug report.
|
|
BR.EmitBasicReport(MD, Checker, "Context Missing",
|
|
"Localizability Issue (Apple)",
|
|
"Localized string macro should include a non-empty "
|
|
"comment for translators",
|
|
PathDiagnosticLocation(ME, BR.getSourceManager(), DCtx));
|
|
}
|
|
|
|
namespace {
|
|
class PluralMisuseChecker : public Checker<check::ASTCodeBody> {
|
|
|
|
// A helper class, which walks the AST
|
|
class MethodCrawler : public RecursiveASTVisitor<MethodCrawler> {
|
|
BugReporter &BR;
|
|
const CheckerBase *Checker;
|
|
AnalysisDeclContext *AC;
|
|
|
|
// This functions like a stack. We push on any IfStmt or
|
|
// ConditionalOperator that matches the condition
|
|
// and pop it off when we leave that statement
|
|
llvm::SmallVector<const clang::Stmt *, 8> MatchingStatements;
|
|
// This is true when we are the direct-child of a
|
|
// matching statement
|
|
bool InMatchingStatement = false;
|
|
|
|
public:
|
|
explicit MethodCrawler(BugReporter &InBR, const CheckerBase *Checker,
|
|
AnalysisDeclContext *InAC)
|
|
: BR(InBR), Checker(Checker), AC(InAC) {}
|
|
|
|
bool VisitIfStmt(const IfStmt *I);
|
|
bool EndVisitIfStmt(IfStmt *I);
|
|
bool TraverseIfStmt(IfStmt *x);
|
|
bool VisitConditionalOperator(const ConditionalOperator *C);
|
|
bool TraverseConditionalOperator(ConditionalOperator *C);
|
|
bool VisitCallExpr(const CallExpr *CE);
|
|
bool VisitObjCMessageExpr(const ObjCMessageExpr *ME);
|
|
|
|
private:
|
|
void reportPluralMisuseError(const Stmt *S) const;
|
|
bool isCheckingPlurality(const Expr *E) const;
|
|
};
|
|
|
|
public:
|
|
void checkASTCodeBody(const Decl *D, AnalysisManager &Mgr,
|
|
BugReporter &BR) const {
|
|
MethodCrawler Visitor(BR, this, Mgr.getAnalysisDeclContext(D));
|
|
Visitor.TraverseDecl(const_cast<Decl *>(D));
|
|
}
|
|
};
|
|
} // end anonymous namespace
|
|
|
|
// Checks the condition of the IfStmt and returns true if one
|
|
// of the following heuristics are met:
|
|
// 1) The conidtion is a variable with "singular" or "plural" in the name
|
|
// 2) The condition is a binary operator with 1 or 2 on the right-hand side
|
|
bool PluralMisuseChecker::MethodCrawler::isCheckingPlurality(
|
|
const Expr *Condition) const {
|
|
const BinaryOperator *BO = nullptr;
|
|
// Accounts for when a VarDecl represents a BinaryOperator
|
|
if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(Condition)) {
|
|
if (const VarDecl *VD = dyn_cast<VarDecl>(DRE->getDecl())) {
|
|
const Expr *InitExpr = VD->getInit();
|
|
if (InitExpr) {
|
|
if (const BinaryOperator *B =
|
|
dyn_cast<BinaryOperator>(InitExpr->IgnoreParenImpCasts())) {
|
|
BO = B;
|
|
}
|
|
}
|
|
if (VD->getName().lower().find("plural") != StringRef::npos ||
|
|
VD->getName().lower().find("singular") != StringRef::npos) {
|
|
return true;
|
|
}
|
|
}
|
|
} else if (const BinaryOperator *B = dyn_cast<BinaryOperator>(Condition)) {
|
|
BO = B;
|
|
}
|
|
|
|
if (BO == nullptr)
|
|
return false;
|
|
|
|
if (IntegerLiteral *IL = dyn_cast_or_null<IntegerLiteral>(
|
|
BO->getRHS()->IgnoreParenImpCasts())) {
|
|
llvm::APInt Value = IL->getValue();
|
|
if (Value == 1 || Value == 2) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// A CallExpr with "LOC" in its identifier that takes in a string literal
|
|
// has been shown to almost always be a function that returns a localized
|
|
// string. Raise a diagnostic when this is in a statement that matches
|
|
// the condition.
|
|
bool PluralMisuseChecker::MethodCrawler::VisitCallExpr(const CallExpr *CE) {
|
|
if (InMatchingStatement) {
|
|
if (const FunctionDecl *FD = CE->getDirectCallee()) {
|
|
std::string NormalizedName =
|
|
StringRef(FD->getNameInfo().getAsString()).lower();
|
|
if (NormalizedName.find("loc") != std::string::npos) {
|
|
for (const Expr *Arg : CE->arguments()) {
|
|
if (isa<ObjCStringLiteral>(Arg))
|
|
reportPluralMisuseError(CE);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// The other case is for NSLocalizedString which also returns
|
|
// a localized string. It's a macro for the ObjCMessageExpr
|
|
// [NSBundle localizedStringForKey:value:table:] Raise a
|
|
// diagnostic when this is in a statement that matches
|
|
// the condition.
|
|
bool PluralMisuseChecker::MethodCrawler::VisitObjCMessageExpr(
|
|
const ObjCMessageExpr *ME) {
|
|
const ObjCInterfaceDecl *OD = ME->getReceiverInterface();
|
|
if (!OD)
|
|
return true;
|
|
|
|
const IdentifierInfo *odInfo = OD->getIdentifier();
|
|
|
|
if (odInfo->isStr("NSBundle") &&
|
|
ME->getSelector().getAsString() == "localizedStringForKey:value:table:") {
|
|
if (InMatchingStatement) {
|
|
reportPluralMisuseError(ME);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/// Override TraverseIfStmt so we know when we are done traversing an IfStmt
|
|
bool PluralMisuseChecker::MethodCrawler::TraverseIfStmt(IfStmt *I) {
|
|
RecursiveASTVisitor<MethodCrawler>::TraverseIfStmt(I);
|
|
return EndVisitIfStmt(I);
|
|
}
|
|
|
|
// EndVisit callbacks are not provided by the RecursiveASTVisitor
|
|
// so we override TraverseIfStmt and make a call to EndVisitIfStmt
|
|
// after traversing the IfStmt
|
|
bool PluralMisuseChecker::MethodCrawler::EndVisitIfStmt(IfStmt *I) {
|
|
MatchingStatements.pop_back();
|
|
if (!MatchingStatements.empty()) {
|
|
if (MatchingStatements.back() != nullptr) {
|
|
InMatchingStatement = true;
|
|
return true;
|
|
}
|
|
}
|
|
InMatchingStatement = false;
|
|
return true;
|
|
}
|
|
|
|
bool PluralMisuseChecker::MethodCrawler::VisitIfStmt(const IfStmt *I) {
|
|
const Expr *Condition = I->getCond()->IgnoreParenImpCasts();
|
|
if (isCheckingPlurality(Condition)) {
|
|
MatchingStatements.push_back(I);
|
|
InMatchingStatement = true;
|
|
} else {
|
|
MatchingStatements.push_back(nullptr);
|
|
InMatchingStatement = false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Preliminary support for conditional operators.
|
|
bool PluralMisuseChecker::MethodCrawler::TraverseConditionalOperator(
|
|
ConditionalOperator *C) {
|
|
RecursiveASTVisitor<MethodCrawler>::TraverseConditionalOperator(C);
|
|
MatchingStatements.pop_back();
|
|
if (!MatchingStatements.empty()) {
|
|
if (MatchingStatements.back() != nullptr)
|
|
InMatchingStatement = true;
|
|
else
|
|
InMatchingStatement = false;
|
|
} else {
|
|
InMatchingStatement = false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool PluralMisuseChecker::MethodCrawler::VisitConditionalOperator(
|
|
const ConditionalOperator *C) {
|
|
const Expr *Condition = C->getCond()->IgnoreParenImpCasts();
|
|
if (isCheckingPlurality(Condition)) {
|
|
MatchingStatements.push_back(C);
|
|
InMatchingStatement = true;
|
|
} else {
|
|
MatchingStatements.push_back(nullptr);
|
|
InMatchingStatement = false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void PluralMisuseChecker::MethodCrawler::reportPluralMisuseError(
|
|
const Stmt *S) const {
|
|
// Generate the bug report.
|
|
BR.EmitBasicReport(AC->getDecl(), Checker, "Plural Misuse",
|
|
"Localizability Issue (Apple)",
|
|
"Plural cases are not supported across all languages. "
|
|
"Use a .stringsdict file instead",
|
|
PathDiagnosticLocation(S, BR.getSourceManager(), AC));
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Checker registration.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
void ento::registerNonLocalizedStringChecker(CheckerManager &mgr) {
|
|
NonLocalizedStringChecker *checker =
|
|
mgr.registerChecker<NonLocalizedStringChecker>();
|
|
checker->IsAggressive =
|
|
mgr.getAnalyzerOptions().getCheckerBooleanOption(
|
|
checker, "AggressiveReport");
|
|
}
|
|
|
|
bool ento::shouldRegisterNonLocalizedStringChecker(const CheckerManager &mgr) {
|
|
return true;
|
|
}
|
|
|
|
void ento::registerEmptyLocalizationContextChecker(CheckerManager &mgr) {
|
|
mgr.registerChecker<EmptyLocalizationContextChecker>();
|
|
}
|
|
|
|
bool ento::shouldRegisterEmptyLocalizationContextChecker(
|
|
const CheckerManager &mgr) {
|
|
return true;
|
|
}
|
|
|
|
void ento::registerPluralMisuseChecker(CheckerManager &mgr) {
|
|
mgr.registerChecker<PluralMisuseChecker>();
|
|
}
|
|
|
|
bool ento::shouldRegisterPluralMisuseChecker(const CheckerManager &mgr) {
|
|
return true;
|
|
}
|