C++ FunctionScopePtr::getId方法代码示例

void MethodStatement::outputSwigFFIStub(CodeGenerator &cg,
                                        AnalysisResultPtr ar) {
  FunctionScopePtr funcScope = m_funcScope.lock();
  bool varArgs = funcScope->isVariableArgument();
  bool ret = funcScope->getReturnType();
  string fname = funcScope->getId();
  string originalName = funcScope->getOriginalName();
  int ac = funcScope->getMaxParamCount();

  if (cg.getContext() == CodeGenerator::SwigFFIImpl) {
    printSource(cg);
  }

  cg.printf("Variant *%s(HphpSession *s", originalName.c_str());
  ostringstream args;
  bool first = true;
  for (int i = 0; i < ac; i++) {
    cg.printf(", Variant *a%d", i);
    if (first) first = false;
    else args << ", ";
    args << "a" << i;
  }
  if (varArgs) {
    cg.printf(", Variant *va");
    if (!first) args << ", ";
    args << "va";
  }

  if (cg.getContext() == CodeGenerator::SwigFFIDecl) {
    cg.printf(");\n\n");
    return;
  }

  cg.indentBegin(") {\n");
  if (ret) {
    cg.printf("void *result;\n");
    cg.printf("int kind = ");
    cg.printf("%s%s(&result", Option::FFIFnPrefix, fname.c_str());
    if (ac > 0 || varArgs) cg.printf(", ");
  } else {
    cg.printf("%s%s(", Option::FFIFnPrefix, fname.c_str());
  }
  cg.printf("%s);\n", args.str().c_str());
  cg.printf("Variant *ret = ");
  if (ret) {
    cg.printf("hphpBuildVariant(kind, result);\n");
    cg.printf("s->addVariant(ret);\n");
  } else {
    cg.printf("hphpBuildVariant(0, 0);\n");
    cg.printf("s->addVariant(ret);\n");
  }
  cg.printf("return ret;\n");
  cg.indentEnd("}\n\n");
}

void MethodStatement::outputCPPTypeCheckWrapper(CodeGenerator &cg,
                                                AnalysisResultPtr ar) {
  FunctionScopePtr funcScope = getFunctionScope();
  TypePtr type = funcScope->getReturnType();
  bool isMethod = getClassScope();
  string fname = isMethod ? funcScope->getName() : funcScope->getId(cg);

  funcScope->outputCPP(cg, ar);
  cg_printf("%s%s%s(", type ? "return " : "",
            (isMethod ? (m_modifiers->isStatic() ?
                         Option::TypedMethodImplPrefix :
                         Option::TypedMethodPrefix) :
             Option::TypedFunctionPrefix),
            fname.c_str());
  if (getClassScope() && m_modifiers->isStatic()) {
    cg_printf("cls, ");
  }
  if (funcScope->isVariableArgument()) {
    cg_printf("num_args, ");
  }

  assert(m_params);

  for (int i = 0; i < m_params->getCount(); i++) {
    ParameterExpressionPtr param =
      dynamic_pointer_cast<ParameterExpression>((*m_params)[i]);
    ASSERT(param);
    if (i) cg_printf(", ");
    cg_printf("%s%s", Option::VariablePrefix,
              param->getName().c_str());
    if (TypePtr spec = funcScope->getParamTypeSpec(i)) {
      if (Type::SameType(spec, funcScope->getParamType(i))) {
        if (spec->is(Type::KindOfArray)) {
          cg_printf(".getArrayData()");
        } else {
          ClassScopePtr cls = ar->findClass(spec->getName());
          assert(cls && !cls->isRedeclaring());
          cg_printf(".getObjectData()");
        }
      }
    }
  }

  if (funcScope->isVariableArgument()) {
    cg_printf(", args");
  }
  cg_printf(");\n");
}

/**
 * Generates the Java stub method for a PHP toplevel function.
 *
 * @author qixin
 */
void MethodStatement::outputJavaFFIStub(CodeGenerator &cg,
                                        AnalysisResultPtr ar) {
  FunctionScopePtr funcScope = m_funcScope.lock();
  bool varArgs = funcScope->isVariableArgument();
  bool ret = funcScope->getReturnType();
  bool inClass = !m_className.empty();
  bool isStatic = !inClass || m_modifiers->isStatic();
  string fname = funcScope->getId();
  string originalName = funcScope->getOriginalName();
  if (originalName.length() < fname.length()) {
    // if there are functions of the same name, fname may contain "$$..."
    // in the end
    originalName += fname.substr(originalName.length());
  }

  if (originalName == "clone"     || originalName == "equals"
   || originalName == "finalize"  || originalName == "getClass"
   || originalName == "hashCode"  || originalName == "notify"
   || originalName == "notifyAll" || originalName == "toString"
   || originalName == "wait") {
    // not to clash with Java method names
    originalName = "_" + originalName;
  }

  if (cg.getContext() == CodeGenerator::JavaFFIInterface
   || inClass && m_modifiers->isAbstract()) {
    // skip all the abstract methods, because php overriding is not very
    // compatible with Java
    return;
  }

  if (!inClass) printSource(cg);

  // This Java method extracts the Variant pointer from the HphpVariant
  // argument as a 64-bit integer, and then calls the native version.
  bool exposeNative = false;
  int ac = funcScope->getMaxParamCount();
  if (ac > 0 || varArgs || !isStatic || !ret && inClass
   || cg.getContext() == CodeGenerator::JavaFFIInterface) {
    // make methods always return something, so that they can override
    // each other
    cg.printf("public %s%s %s(",
              (isStatic ? "static " : ""),
              (!ret && !inClass ? "void" : "HphpVariant"),
              originalName.c_str());
    ostringstream args;
    bool first = true;
    if (!isStatic) {
      // instance method has an additional parameter
      args << "this.getVariantPtr()";
    }
    for (int i = 0; i < ac; i++) {
      if (first) {
        first = false;
        if (!isStatic) args << ", ";
      }
      else {
        cg.printf(", ");
        args << ", ";
      }
      cg.printf("HphpVariant a%d", i);
      args << "a" << i << ".getVariantPtr()";
    }
    if (varArgs) {
      if (!first) {
        cg.printf(", ");
        args << ", ";
      }
      else if (!isStatic) {
        args << ", ";
      }
      cg.printf("HphpVariant va");
      args << "va.getVariantPtr()";
    }

    if (cg.getContext() == CodeGenerator::JavaFFIInterface) {
      cg.printf(");\n\n");
      return;
    }

    cg.indentBegin(") {\n");
    cg.printf("%s%s_native(%s);\n", (ret ? "return " : ""),
              originalName.c_str(),
              args.str().c_str());
    if (!ret && inClass) {
      cg.printf("return HphpNull.phpNull();\n");
    }
    cg.indentEnd("}\n\n");
  }
  else {
    exposeNative = true;
  }

  // the native method stub
  cg.printf("%s %snative %s %s%s(",
//.........这里部分代码省略.........

void MethodStatement::outputHSFFIStub(CodeGenerator &cg, AnalysisResultPtr ar) {
  if (!m_className.empty()) {
    // Haskell currently doesn't support FFI for class methods.
    return;
  }

  FunctionScopePtr funcScope = m_funcScope.lock();
  bool varArgs = funcScope->isVariableArgument();
  bool ret = funcScope->getReturnType();
  string fname = funcScope->getId().c_str();
  cg.indentBegin("foreign import ccall \"stubs.h %s%s\" %s%s\n",
                 Option::FFIFnPrefix,
                 fname.c_str(),
                 Option::FFIFnPrefix,
                 fname.c_str());
  cg.printf(":: ");
  if (ret) {
    cg.printf("PtrPtr a -> ");
  }
  int ac = funcScope->getMaxParamCount();
  for (int i = 0; i < ac; ++i) {
    cg.printf("HphpVariantPtr -> ");
  }
  if (varArgs) {
    cg.printf("HphpVariantPtr -> ");
  }
  if (ret) {
    cg.printf("IO CInt");
  } else {
    cg.printf("IO ()");
  }
  cg.indentEnd("\n");

  cg.printf("f_%s :: ", fname.c_str());
  bool first = true;
  if (ac > 0) {
    cg.printf("(");
  }
  for (int i = 0; i < ac; ++i) {
    if (first) {
      first = false;
    } else {
      cg.printf(", ");
    }
    cg.printf("VariantAble a%d", i);
  }
  if (ac > 0) {
    cg.printf(") => ");
  }
  for (int i = 0; i < ac; ++i) {
    cg.printf("a%d -> ", i);
  }
  if (varArgs) {
    cg.printf("[Variant] -> ");
  }
  if (ret) {
    cg.printf("IO Variant");
  } else {
    cg.printf("IO ()");
  }
  cg.printf("\n");
  cg.printf("f_%s ", fname.c_str());
  for (int i = 0; i < ac; ++i) {
    cg.printf("v%d ", i);
  }
  if (varArgs) {
    cg.printf("va ");
  }
  cg.indentBegin("=%s\n", ret ? " alloca (\\pres ->" : "");
  for (int i = 0; i < ac; ++i) {
    cg.indentBegin("withExportedVariant (toVariant v%d) (\\p%d ->\n", i, i);
  }
  if (varArgs) {
    cg.indentBegin("withVParamList va (\\pva ->\n");
  }
  cg.indentBegin("do\n");
  cg.printf("%sffi_%s", ret ? "t <- " : "", fname.c_str());
  if (ret) {
    cg.printf(" pres");
  }
  for (int i = 0; i < ac; ++i) {
    cg.printf(" p%d", i);
  }
  if (varArgs) {
    cg.printf(" pva");
  }
  if (ret) {
    cg.printf("\n");
    cg.printf("ppres <- peek pres\n");
    cg.printf("buildVariant (fromIntegral t) ppres");
  }
  cg.indentEnd(""); // end do
  if (varArgs) {
    cg.indentEnd(")"); // end varargs
  }
  for (int i = 0; i < ac; ++i) {
    cg.indentEnd(")"); // end wEV i
  }
  if (ret) {
    cg.indentEnd(")"); // end alloca
//.........这里部分代码省略.........

void MethodStatement::outputCPPFFIStub(CodeGenerator &cg,
                                       AnalysisResultPtr ar) {
  FunctionScopePtr funcScope = m_funcScope.lock();
  bool varArgs = funcScope->isVariableArgument();
  bool ret = funcScope->getReturnType();
  string fname = funcScope->getId();
  bool inClass = !m_className.empty();
  bool isStatic = !inClass || m_modifiers->isStatic();

  if (inClass && m_modifiers->isAbstract()) {
    return;
  }

  if (fname == "__lval" || fname == "__offsetget_lval") {
    return;
  }

  if (ret) {
    cg.printf("int");
  } else {
    cg.printf("void");
  }
  cg.printf(" %s%s%s(", Option::FFIFnPrefix,
            (inClass ? (m_className + "_cls_").c_str() : ""), fname.c_str());
  if (ret) {
    cg.printf("void** res");
  }

  bool first = !ret;

  if (!isStatic) {
    // instance methods need one additional parameter for the target
    if (first) {
      first = false;
    }
    else {
      cg.printf(", ");
    }
    cg.printf("Variant *target");
  }

  int ac = funcScope->getMaxParamCount();
  for (int i = 0; i < ac; ++i) {
    if (first) {
      first = false;
    } else {
      cg.printf(", ");
    }
    cg.printf("Variant *a%d", i);
  }
  if (varArgs) {
    if (!first) {
      cg.printf(", ");
    }
    cg.printf("Variant *va");
  }
  cg.printf(")");
  if (cg.getContext() == CodeGenerator::CppFFIDecl) {
    cg.printf(";\n");
  } else {
    cg.indentBegin(" {\n");
    if (ret) {
      cg.printf("return hphp_ffi_exportVariant(");
    }

    if (!inClass) {
      // simple function call
      cg.printf("%s%s(", Option::FunctionPrefix, fname.c_str());
    }
    else if (isStatic) {
      // static method call
      cg.printf("%s%s::%s%s(", Option::ClassPrefix, m_className.c_str(),
                Option::MethodPrefix, fname.c_str());
    }
    else {
      // instance method call
      cg.printf("dynamic_cast<%s%s *>(target->getObjectData())->",
                Option::ClassPrefix, m_className.c_str());
      cg.printf("%s%s(", Option::MethodPrefix, fname.c_str());
    }

    first = true;
    if (varArgs) {
      cg.printf("%d + (va->isNull() ? 0 : va->getArrayData()->size())", ac);
      first = false;
    }

    for (int i = 0; i < ac; ++i) {
      if (first) {
        first = false;
      } else {
        cg.printf(", ");
      }
      cg.printf("*a%d", i);
    }
    if (varArgs) {
      cg.printf(", va->toArray()");
    }
    if (ret) {
      cg.printf("), res");
//.........这里部分代码省略.........

void MethodStatement::outputJavaFFICPPStub(CodeGenerator &cg,
                                           AnalysisResultPtr ar) {
  // TODO translate PHP namespace once that is supported
  string packageName = Option::JavaFFIRootPackage;

  FunctionScopePtr funcScope = m_funcScope.lock();
  bool varArgs = funcScope->isVariableArgument();
  bool ret = funcScope->getReturnType();
  bool inClass = !m_className.empty();
  bool isStatic = !inClass || m_modifiers->isStatic();
  string fname = funcScope->getId();
  int ac = funcScope->getMaxParamCount();
  bool exposeNative = !(ac > 0 || varArgs || !isStatic || !ret && inClass);

  if (inClass && m_modifiers->isAbstract()) {
    // skip all the abstract methods, because hphp doesn't generate code
    // for them
    return;
  }

  if (fname == "__lval" || fname == "__offsetget_lval") return;

  const char *clsName;
  if (inClass) {
    // uses capitalized original class name
    ClassScopePtr cls = ar->findClass(m_className);
    clsName = cls->getOriginalName();
  }
  else {
    clsName = "HphpMain";
  }
  string mangledName = "Java." + packageName + "." + clsName + "." + fname
    + (exposeNative ? "" : "_native");
  // all the existing "_" are replaced as "_1"
  Util::replaceAll(mangledName, "_", "_1");
  Util::replaceAll(mangledName, ".", "_");

  cg.printf("JNIEXPORT %s JNICALL\n", ret ? "jobject" : "void");
  cg.printf("%s(JNIEnv *env, %s target", mangledName.c_str(),
            (isStatic ? "jclass" : "jobject"));

  ostringstream args;
  bool first = true;
  if (!isStatic) {
    // instance method also gets an additional argument, which is a Variant
    // pointer to the target, encoded in int64
    first = false;
    cg.printf(", jlong targetPtr");
    args << "(Variant *)targetPtr";
  }
  for (int i = 0; i < ac; i++) {
    cg.printf(", jlong a%d", i);
    if (first) first = false;
    else args << ", ";
    args << "(Variant *)a" << i;
  }
  if (varArgs) {
    cg.printf(", jlong va");
    if (!first) args << ", ";
    args << "(Variant *)va";
  }

  if (cg.getContext() == CodeGenerator::JavaFFICppDecl) {
    // java_stubs.h
    cg.printf(");\n\n");
    return;
  }

  cg.indentBegin(") {\n");

  // support static/instance methods
  if (ret) {
    cg.printf("void *result;\n");
    cg.printf("int kind = ");
    cg.printf("%s%s%s(&result",
              Option::FFIFnPrefix,
              (inClass ? (m_className + "_cls_").c_str() : ""), fname.c_str());
    if (!isStatic || ac > 0 || varArgs) cg.printf(", ");
  }
  else {
    cg.printf("%s%s%s(", Option::FFIFnPrefix,
                         (inClass ? (m_className + "_cls_").c_str() : ""),
                         fname.c_str());
  }
  cg.printf("%s);\n", args.str().c_str());
  if (ret) {
    if (!inClass) {
      // HphpMain extends hphp.Hphp.
      cg.printf("jclass hphp = env->GetSuperclass(target);\n");
    }
    else {
      cg.printf("jclass hphp = env->FindClass(\"hphp/Hphp\");\n");
    }
    cg.printf("return exportVariantToJava(env, hphp, result, kind);\n");
  }

  cg.indentEnd("} /* function */\n\n");
}

void FunctionStatement::outputCPPImpl(CodeGenerator &cg,
                                      AnalysisResultPtr ar) {
  CodeGenerator::Context context = cg.getContext();

  FunctionScopePtr funcScope = m_funcScope.lock();
  string fname = funcScope->getId(cg).c_str();
  bool pseudoMain = funcScope->inPseudoMain();
  string origFuncName = !pseudoMain ? funcScope->getOriginalName() :
          ("run_init::" + funcScope->getFileScope()->getName());
  string funcSection;

  if (outputFFI(cg, ar)) return;

  if (context == CodeGenerator::NoContext) {
    string rname = cg.formatLabel(m_name);
    if (funcScope->isRedeclaring()) {
      cg.printf("g->%s%s = &%s%s;\n", Option::CallInfoPrefix, m_name.c_str(),
          Option::CallInfoPrefix, fname.c_str());
    }
    if (funcScope->isVolatile()) {
      cg_printf("g->declareFunctionLit(");
      cg_printString(m_name, ar);
      cg_printf(");\n");
      cg_printf("g->FVF(%s) = true;\n", rname.c_str());
    }
    return;
  }

  if (context == CodeGenerator::CppDeclaration &&
      !funcScope->isInlined()) return;

  if (context == CodeGenerator::CppPseudoMain &&
      !pseudoMain) return;
  if (context == CodeGenerator::CppImplementation &&
      (funcScope->isInlined() || pseudoMain)) return;
  ar->pushScope(funcScope);

  cg.setPHPLineNo(-1);

  if (pseudoMain && !Option::GenerateCPPMain) {
    if (context == CodeGenerator::CppPseudoMain) {
      if (cg.getOutput() != CodeGenerator::SystemCPP) {
        cg.setContext(CodeGenerator::NoContext); // no inner functions/classes
        funcScope->getVariables()->setAttribute(VariableTable::ForceGlobal);
        outputCPPStmt(cg, ar);
        funcScope->getVariables()->clearAttribute(VariableTable::ForceGlobal);
        cg.setContext(CodeGenerator::CppPseudoMain);
        ar->popScope();
        return;
      }
    } else if (context == CodeGenerator::CppForwardDeclaration &&
               cg.getOutput() != CodeGenerator::SystemCPP) {
      return;
    }
  }

  if (context == CodeGenerator::CppImplementation) {
    printSource(cg);
  } else if (context == CodeGenerator::CppForwardDeclaration &&
             Option::GenerateCppLibCode) {
    cg_printf("\n");
    printSource(cg);
    cg.printDocComment(funcScope->getDocComment());
  }

  if (funcScope->isInlined()) cg_printf("inline ");

  TypePtr type = funcScope->getReturnType();
  if (type) {
    type->outputCPPDecl(cg, ar);
  } else {
    cg_printf("void");
  }

  funcSection = Option::FunctionSections[origFuncName];
  if (!funcSection.empty()) {
    cg_printf(" __attribute__ ((section (\".text.%s\")))",
              funcSection.c_str());
  }

  if (pseudoMain) {
    cg_printf(" %s%s(", Option::PseudoMainPrefix,
              funcScope->getFileScope()->pseudoMainName().c_str());
  } else {
    cg_printf(" %s%s(", Option::FunctionPrefix, fname.c_str());
  }

  switch (context) {
  case CodeGenerator::CppForwardDeclaration:
    funcScope->outputCPPParamsDecl(cg, ar, m_params, true);
    cg_printf(");\n");
    if (funcScope->hasDirectInvoke()) {
      cg_printf("Variant %s%s(void *extra, CArrRef params);\n",
                Option::InvokePrefix, fname.c_str());
    }
    break;
  case CodeGenerator::CppDeclaration:
  case CodeGenerator::CppImplementation:
  case CodeGenerator::CppPseudoMain:
    {
//.........这里部分代码省略.........