/*
|
* 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
|
