| /* |
| * 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 android::base::Split; |
| using android::base::Trim; |
| 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 kUtf8StringClass[] = "Utf8String"; |
| const char kUtf8InCppStringClass[] = "Utf8InCppString"; |
| |
| // These *must* match the package and class names above. |
| const char kUtf8StringCanonicalName[] = "aidl-internal.Utf8String"; |
| const char kUtf8InCppStringCanonicalName[] = "aidl-internal.Utf8InCppString"; |
| |
| const char kStringCanonicalName[] = "java.lang.String"; |
| |
| const char kUtf8Annotation[] = "@utf8"; |
| 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"; |
| } |
| |
| bool TypeNamespace::IsValidPackage(const string& /* package */) const { |
| return true; |
| } |
| |
| const ValidatableType* TypeNamespace::GetReturnType( |
| const AidlType& raw_type, const string& filename, |
| const AidlInterface& interface) const { |
| string error_msg; |
| const ValidatableType* return_type = GetValidatableType(raw_type, &error_msg, |
| interface); |
| if (return_type == nullptr) { |
| LOG(ERROR) << StringPrintf("In file %s line %d return type %s:\n ", |
| filename.c_str(), raw_type.GetLine(), |
| raw_type.ToString().c_str()) |
| << error_msg; |
| return nullptr; |
| } |
| |
| return return_type; |
| } |
| |
| const ValidatableType* TypeNamespace::GetArgType( |
| const AidlArgument& a, int arg_index, const string& filename, |
| const AidlInterface& interface) const { |
| string error_prefix = StringPrintf( |
| "In file %s line %d parameter %s (argument %d):\n ", |
| filename.c_str(), a.GetLine(), a.GetName().c_str(), arg_index); |
| |
| // check the arg type |
| string error_msg; |
| const ValidatableType* t = GetValidatableType(a.GetType(), &error_msg, |
| interface); |
| if (t == nullptr) { |
| LOG(ERROR) << error_prefix << error_msg; |
| return nullptr; |
| } |
| |
| if (!a.DirectionWasSpecified() && t->CanBeOutParameter()) { |
| LOG(ERROR) << error_prefix << StringPrintf( |
| "'%s' can be an out type, so you must declare it as in," |
| " out or inout.", |
| a.GetType().ToString().c_str()); |
| return nullptr; |
| } |
| |
| if (a.GetDirection() != AidlArgument::IN_DIR && |
| !t->CanBeOutParameter()) { |
| LOG(ERROR) << error_prefix << StringPrintf( |
| "'%s' can only be an in parameter.", |
| a.ToString().c_str()); |
| return nullptr; |
| } |
| |
| // check that the name doesn't match a keyword |
| if (is_java_keyword(a.GetName().c_str())) { |
| LOG(ERROR) << 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") { |
| LOG(ERROR) << error_prefix << "Argument name cannot begin with '_aidl'"; |
| return nullptr; |
| } |
| |
| return t; |
| } |
| |
| } // namespace aidl |
| } // namespace android |