Exemplo n.º 1
0
void ClassScope::collectMethods(AnalysisResultPtr ar,
                                StringToFunctionScopePtrMap &funcs,
                                bool collectPrivate) {
  // add all functions this class has
  for (FunctionScopePtrVec::const_iterator iter =
         m_functionsVec.begin(); iter != m_functionsVec.end(); ++iter) {
    const FunctionScopePtr &fs = *iter;
    if (!collectPrivate && fs->isPrivate()) continue;

    FunctionScopePtr &func = funcs[fs->getScopeName()];
    if (!func) {
      func = fs;
    } else {
      func->setVirtual();
      fs->setVirtual();
      fs->setHasOverride();
      if (fs->isFinal()) {
        std::string s__MockClass = "__MockClass";
        ClassScopePtr derivedClass = func->getContainingClass();
        if (derivedClass->m_userAttributes.find(s__MockClass) ==
            derivedClass->m_userAttributes.end()) {
          Compiler::Error(Compiler::InvalidOverride,
                          fs->getStmt(), func->getStmt());
        }
      }
    }
  }

  int n = m_bases.size();
  for (int i = 0; i < n; i++) {
    const string &base = m_bases[i];
    ClassScopePtr super = ar->findClass(base);
    if (super) {
      if (super->isRedeclaring()) {
        const ClassScopePtrVec &classes = ar->findRedeclaredClasses(base);
        StringToFunctionScopePtrMap pristine(funcs);

        for (auto& cls : classes) {
          StringToFunctionScopePtrMap cur(pristine);
          derivedMagicMethods(cls);
          cls->collectMethods(ar, cur, false);
          inheritedMagicMethods(cls);
          funcs.insert(cur.begin(), cur.end());
        }

        m_derivesFromRedeclaring = Derivation::Redeclaring;

        setVolatile();
      } else {
        derivedMagicMethods(super);
        super->collectMethods(ar, funcs, false);
        inheritedMagicMethods(super);
        if (super->derivesFromRedeclaring() == Derivation::Redeclaring) {
          m_derivesFromRedeclaring = Derivation::Redeclaring;
          setVolatile();
        } else if (super->isVolatile()) {
          setVolatile();
        }
      }
    } else {
      Compiler::Error(Compiler::UnknownBaseClass, m_stmt, base);
      if (base == m_parent) {
        ar->declareUnknownClass(m_parent);
        m_derivesFromRedeclaring = Derivation::Redeclaring;
        setVolatile();
      } else {
        /*
         * TODO(#3685260): this should not be removing interfaces from
         * the base list.
         */
        if (isInterface()) {
          m_derivesFromRedeclaring = Derivation::Redeclaring;
        }
        m_bases.erase(m_bases.begin() + i);
        n--;
        i--;
      }
    }
  }
}
Exemplo n.º 2
0
void AnalysisResult::analyzeProgram(bool system /* = false */) {
  AnalysisResultPtr ar = shared_from_this();

  getVariables()->forceVariants(ar, VariableTable::AnyVars);
  getVariables()->setAttribute(VariableTable::ContainsLDynamicVariable);
  getVariables()->setAttribute(VariableTable::ContainsExtract);
  getVariables()->setAttribute(VariableTable::ForceGlobal);

  // Analyze Includes
  Logger::Verbose("Analyzing Includes");
  sort(m_fileScopes.begin(), m_fileScopes.end(), by_filename); // fixed order
  unsigned int i = 0;
  for (i = 0; i < m_fileScopes.size(); i++) {
    collectFunctionsAndClasses(m_fileScopes[i]);
  }

  // Keep generated code identical without randomness
  canonicalizeSymbolOrder();

  markRedeclaringClasses();

  // Analyze some special cases
  for (set<string>::const_iterator it = Option::VolatileClasses.begin();
       it != Option::VolatileClasses.end(); ++it) {
    ClassScopePtr cls = findClass(toLower(*it));
    if (cls && cls->isUserClass()) {
      cls->setVolatile();
    }
  }

  checkClassDerivations();
  resolveNSFallbackFuncs();

  // Analyze All
  Logger::Verbose("Analyzing All");
  setPhase(AnalysisResult::AnalyzeAll);
  for (i = 0; i < m_fileScopes.size(); i++) {
    m_fileScopes[i]->analyzeProgram(ar);
  }

  /*
    Note that cls->collectMethods() can add entries to m_classDecs,
    which can invalidate iterators. So we have to create an array
    and then iterate over that.
    The new entries added to m_classDecs are always empty, so it
    doesnt matter that we dont include them in the iteration
  */
  std::vector<ClassScopePtr> classes;
  classes.reserve(m_classDecs.size());
  for (StringToClassScopePtrVecMap::const_iterator iter = m_classDecs.begin();
       iter != m_classDecs.end(); ++iter) {
    for (ClassScopePtr cls: iter->second) {
      classes.push_back(cls);
    }
  }

  // Collect methods
  for (ClassScopePtr cls: classes) {
    if (cls->isRedeclaring()) {
      cls->setStaticDynamic(ar);
    }
    StringToFunctionScopePtrMap methods;
    cls->collectMethods(ar, methods, true /* include privates */);
    bool needAbstractMethodImpl =
      (!cls->isAbstract() && !cls->isInterface() &&
       cls->derivesFromRedeclaring() == Derivation::Normal &&
       !cls->getAttribute(ClassScope::UsesUnknownTrait));
    for (StringToFunctionScopePtrMap::const_iterator iterMethod =
           methods.begin(); iterMethod != methods.end(); ++iterMethod) {
      FunctionScopePtr func = iterMethod->second;
      if (Option::WholeProgram && !func->hasImpl() && needAbstractMethodImpl) {
        FunctionScopePtr tmpFunc =
          cls->findFunction(ar, func->getName(), true, true);
        always_assert(!tmpFunc || !tmpFunc->hasImpl());
        Compiler::Error(Compiler::MissingAbstractMethodImpl,
                        func->getStmt(), cls->getStmt());
      }
      m_methodToClassDecs[iterMethod->first].push_back(cls);
    }
  }

  ClassScopePtr cls;
  string cname;
  for (auto& sysclass_cls: m_systemClasses) {
    tie(cname, cls) = sysclass_cls;
    StringToFunctionScopePtrMap methods;
    cls->collectMethods(ar, methods, true /* include privates */);
    for (StringToFunctionScopePtrMap::const_iterator iterMethod =
           methods.begin(); iterMethod != methods.end(); ++iterMethod) {
      m_methodToClassDecs[iterMethod->first].push_back(cls);
    }
  }
}