| /* |
| * Copyright (C) 2015, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "type_namespace.h" |
| |
| #include <algorithm> |
| #include <string> |
| #include <vector> |
| |
| #include "aidl_language.h" |
| #include "logging.h" |
| |
| using android::base::StringPrintf; |
| using std::string; |
| using std::vector; |
| |
| namespace android { |
| namespace aidl { |
| |
| // Since packages cannot contain '-' normally, we cannot be asked |
| // to create a type that conflicts with these strings. |
| const char kAidlReservedTypePackage[] = "aidl-internal"; |
| const char kUtf8InCppStringClass[] = "Utf8InCppString"; |
| |
| // These *must* match the package and class names above. |
| const char kUtf8InCppStringCanonicalName[] = "aidl-internal.Utf8InCppString"; |
| |
| const char kStringCanonicalName[] = "java.lang.String"; |
| |
| const char kUtf8InCppAnnotation[] = "@utfInCpp"; |
| |
| namespace { |
| |
| bool is_java_keyword(const char* str) { |
| static const std::vector<std::string> kJavaKeywords{ |
| "abstract", "assert", "boolean", "break", "byte", |
| "case", "catch", "char", "class", "const", |
| "continue", "default", "do", "double", "else", |
| "enum", "extends", "final", "finally", "float", |
| "for", "goto", "if", "implements", "import", |
| "instanceof", "int", "interface", "long", "native", |
| "new", "package", "private", "protected", "public", |
| "return", "short", "static", "strictfp", "super", |
| "switch", "synchronized", "this", "throw", "throws", |
| "transient", "try", "void", "volatile", "while", |
| "true", "false", "null", |
| }; |
| return std::find(kJavaKeywords.begin(), kJavaKeywords.end(), str) != |
| kJavaKeywords.end(); |
| } |
| |
| } // namespace |
| |
| ValidatableType::ValidatableType( |
| int kind, const string& package, const string& type_name, |
| const string& decl_file, int decl_line) |
| : kind_(kind), |
| type_name_(type_name), |
| canonical_name_((package.empty()) ? type_name |
| : package + "." + type_name), |
| origin_file_(decl_file), |
| origin_line_(decl_line) {} |
| |
| string ValidatableType::HumanReadableKind() const { |
| switch (Kind()) { |
| case ValidatableType::KIND_BUILT_IN: |
| return "a built in"; |
| case ValidatableType::KIND_PARCELABLE: |
| return "a parcelable"; |
| case ValidatableType::KIND_INTERFACE: |
| return "an interface"; |
| case ValidatableType::KIND_GENERATED: |
| return "a generated"; |
| } |
| return "unknown"; |
| } |
| |
| const ValidatableType* TypeNamespace::GetReturnType(const AidlTypeSpecifier& raw_type, |
| const AidlDefinedType& context) const { |
| string error_msg; |
| const ValidatableType* return_type = GetValidatableType(raw_type, &error_msg, context); |
| if (return_type == nullptr) { |
| AIDL_ERROR(raw_type) << "Return type " << raw_type.ToString() << ": " << error_msg; |
| return nullptr; |
| } |
| |
| return return_type; |
| } |
| |
| bool TypeNamespace::AddDefinedTypes(vector<AidlDefinedType*>& types, const string& filename) { |
| bool success = true; |
| for (const auto type : types) { |
| const AidlInterface* interface = type->AsInterface(); |
| if (interface != nullptr) { |
| success &= AddBinderType(*interface, filename); |
| continue; |
| } |
| |
| const AidlParcelable* parcelable = type->AsParcelable(); |
| if (parcelable != nullptr) { |
| success &= AddParcelableType(*parcelable, filename); |
| continue; |
| } |
| |
| CHECK(false) << "aidl internal error: unrecognized type"; |
| } |
| return success; |
| } |
| |
| const ValidatableType* TypeNamespace::GetArgType(const AidlArgument& a, int arg_index, |
| const AidlDefinedType& context) const { |
| string error_prefix = |
| StringPrintf("parameter %s (argument %d): ", a.GetName().c_str(), arg_index); |
| |
| // check the arg type |
| string error_msg; |
| const ValidatableType* t = GetValidatableType(a.GetType(), &error_msg, context); |
| if (t == nullptr) { |
| AIDL_ERROR(a) << error_prefix << error_msg; |
| return nullptr; |
| } |
| |
| const bool can_be_out = typenames_.CanBeOutParameter(a.GetType()); |
| if (!a.DirectionWasSpecified() && can_be_out) { |
| AIDL_ERROR(a) << error_prefix << "'" << a.GetType().ToString() |
| << "' can be an out type, so you must declare it as in, out, or inout."; |
| return nullptr; |
| } |
| |
| if (a.GetDirection() != AidlArgument::IN_DIR && !can_be_out) { |
| AIDL_ERROR(a) << error_prefix << "'" << a.ToString() << "' can only be an in parameter."; |
| return nullptr; |
| } |
| |
| // check that the name doesn't match a keyword |
| if (is_java_keyword(a.GetName().c_str())) { |
| AIDL_ERROR(a) << error_prefix << "Argument name is a Java or aidl keyword"; |
| return nullptr; |
| } |
| |
| // Reserve a namespace for internal use |
| if (a.GetName().substr(0, 5) == "_aidl") { |
| AIDL_ERROR(a) << error_prefix << "Argument name cannot begin with '_aidl'"; |
| return nullptr; |
| } |
| |
| return t; |
| } |
| |
| } // namespace aidl |
| } // namespace android |