Emit toString functions for all types.
* toString() is mainly for debugging purposes only.
* For HIDL internal types (hidl_string, hidl_vec, etc.)
toString() is found in ::android::hardware::details.
* For a user defined type
android.hardware.foo@1.0::IFoo.Type,
toString() is found in ::android::hardware::foo::V1_0.
* For bitfield<::anroid::hardware::foo::V1_0::T>
that gets translated to the underlying
numeric type of T, it doesn't make sense to override toString().
A templated toString() function for each user-defined HIDL enum \
is introduced into the same namespace; call it with
using namespace ::android::hardware::foo::V1_0;
toString<IFoo::MyEnumType>(value);
Test: hidl_test and look at the output of logcat
Bug: 33459772
Change-Id: I70eee018e31d700bf1376334276dbd343af5615f
diff --git a/Interface.cpp b/Interface.cpp
index 9fd8954..9d7cc89 100644
--- a/Interface.cpp
+++ b/Interface.cpp
@@ -500,6 +500,53 @@
}
}
+status_t Interface::emitGlobalTypeDeclarations(Formatter &out) const {
+ status_t status = Scope::emitGlobalTypeDeclarations(out);
+ if (status != OK) {
+ return status;
+ }
+ out << "std::string toString("
+ << getCppArgumentType()
+ << ");\n";
+ return OK;
+}
+
+
+status_t Interface::emitTypeDefinitions(
+ Formatter &out, const std::string prefix) const {
+ std::string space = prefix.empty() ? "" : (prefix + "::");
+ status_t err = Scope::emitTypeDefinitions(out, space + localName());
+ if (err != OK) {
+ return err;
+ }
+
+ out << "std::string toString("
+ << getCppArgumentType()
+ << " o) ";
+
+ out.block([&] {
+ out << "std::string os;\nbool ok = false;\n";
+ // TODO b/34136228 use interfaceDescriptor instead
+ out << "auto ret = o->interfaceChain([&os, &ok] (const auto &chain) ";
+ out.block([&] {
+ out.sIf("chain.size() >= 1", [&] {
+ out << "os += chain[0].c_str();\n"
+ << "ok = true;\n";
+ }).endl();
+ });
+ out << ");\n";
+ out.sIf("!ret.isOk() || !ok", [&] {
+ out << "os += \"[class or subclass of \";\n"
+ << "os += " << fullName() << "::descriptor;\n"
+ << "os += \"]\";\n";
+ }).endl();
+ out << "os += o->isRemote() ? \"@remote\" : \"@local\";\n"
+ << "return os;\n";
+ }).endl().endl();
+
+ return OK;
+}
+
void Interface::emitJavaReaderWriter(
Formatter &out,
const std::string &parcelObj,