Revert "Move frameworks/base/tools/ to frameworks/tools/"

This reverts commit 9f6a119c8aa276432ece4fe2118bd8a3c9b1067e.

1 files changed, 560 insertions, 0 deletions

diff --git a/tools/aidl/generate_java_binder.cpp b/tools/aidl/generate_java_binder.cpp
new file mode 100644
index 0000000..f291ceb
--- /dev/null
+++ b/tools/aidl/generate_java_binder.cpp
@@ -0,0 +1,560 @@
+#include "generate_java.h"
+#include "Type.h"
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+// =================================================
+class StubClass : public Class
+{
+public:
+    StubClass(Type* type, Type* interfaceType);
+    virtual ~StubClass();
+
+    Variable* transact_code;
+    Variable* transact_data;
+    Variable* transact_reply;
+    Variable* transact_flags;
+    SwitchStatement* transact_switch;
+private:
+    void make_as_interface(Type* interfaceType);
+};
+
+StubClass::StubClass(Type* type, Type* interfaceType)
+    :Class()
+{
+    this->comment = "/** Local-side IPC implementation stub class. */";
+    this->modifiers = PUBLIC | ABSTRACT | STATIC;
+    this->what = Class::CLASS;
+    this->type = type;
+    this->extends = BINDER_NATIVE_TYPE;
+    this->interfaces.push_back(interfaceType);
+
+    // descriptor
+    Field* descriptor = new Field(STATIC | FINAL | PRIVATE,
+                            new Variable(STRING_TYPE, "DESCRIPTOR"));
+    descriptor->value = "\"" + interfaceType->QualifiedName() + "\"";
+    this->elements.push_back(descriptor);
+
+    // ctor
+    Method* ctor = new Method;
+        ctor->modifiers = PUBLIC;
+        ctor->comment = "/** Construct the stub at attach it to the "
+                        "interface. */";
+        ctor->name = "Stub";
+        ctor->statements = new StatementBlock;
+    MethodCall* attach = new MethodCall(THIS_VALUE, "attachInterface",
+                            2, THIS_VALUE, new LiteralExpression("DESCRIPTOR"));
+    ctor->statements->Add(attach);
+    this->elements.push_back(ctor);
+
+    // asInterface
+    make_as_interface(interfaceType);
+
+    // asBinder
+    Method* asBinder = new Method;
+        asBinder->modifiers = PUBLIC | OVERRIDE;
+        asBinder->returnType = IBINDER_TYPE;
+        asBinder->name = "asBinder";
+        asBinder->statements = new StatementBlock;
+    asBinder->statements->Add(new ReturnStatement(THIS_VALUE));
+    this->elements.push_back(asBinder);
+
+    // onTransact
+    this->transact_code = new Variable(INT_TYPE, "code");
+    this->transact_data = new Variable(PARCEL_TYPE, "data");
+    this->transact_reply = new Variable(PARCEL_TYPE, "reply");
+    this->transact_flags = new Variable(INT_TYPE, "flags");
+    Method* onTransact = new Method;
+        onTransact->modifiers = PUBLIC | OVERRIDE;
+        onTransact->returnType = BOOLEAN_TYPE;
+        onTransact->name = "onTransact";
+        onTransact->parameters.push_back(this->transact_code);
+        onTransact->parameters.push_back(this->transact_data);
+        onTransact->parameters.push_back(this->transact_reply);
+        onTransact->parameters.push_back(this->transact_flags);
+        onTransact->statements = new StatementBlock;
+        onTransact->exceptions.push_back(REMOTE_EXCEPTION_TYPE);
+    this->elements.push_back(onTransact);
+    this->transact_switch = new SwitchStatement(this->transact_code);
+
+    onTransact->statements->Add(this->transact_switch);
+    MethodCall* superCall = new MethodCall(SUPER_VALUE, "onTransact", 4,
+                                    this->transact_code, this->transact_data,
+                                    this->transact_reply, this->transact_flags);
+    onTransact->statements->Add(new ReturnStatement(superCall));
+}
+
+StubClass::~StubClass()
+{
+}
+
+void
+StubClass::make_as_interface(Type *interfaceType)
+{
+    Variable* obj = new Variable(IBINDER_TYPE, "obj");
+
+    Method* m = new Method;
+        m->comment = "/**\n * Cast an IBinder object into an ";
+        m->comment += interfaceType->QualifiedName();
+        m->comment += " interface,\n";
+        m->comment += " * generating a proxy if needed.\n */";
+        m->modifiers = PUBLIC | STATIC;
+        m->returnType = interfaceType;
+        m->name = "asInterface";
+        m->parameters.push_back(obj);
+        m->statements = new StatementBlock;
+
+    IfStatement* ifstatement = new IfStatement();
+        ifstatement->expression = new Comparison(obj, "==", NULL_VALUE);
+        ifstatement->statements = new StatementBlock;
+        ifstatement->statements->Add(new ReturnStatement(NULL_VALUE));
+    m->statements->Add(ifstatement);
+
+    // IInterface iin = obj.queryLocalInterface(DESCRIPTOR)
+    MethodCall* queryLocalInterface = new MethodCall(obj, "queryLocalInterface");
+    queryLocalInterface->arguments.push_back(new LiteralExpression("DESCRIPTOR"));
+    IInterfaceType* iinType = new IInterfaceType();
+    Variable *iin = new Variable(iinType, "iin");
+    VariableDeclaration* iinVd = new VariableDeclaration(iin, queryLocalInterface, NULL);
+    m->statements->Add(iinVd);
+
+    // Ensure the instance type of the local object is as expected.
+    // One scenario where this is needed is if another package (with a
+    // different class loader) runs in the same process as the service.
+
+    // if (iin != null && iin instanceof <interfaceType>) return (<interfaceType>) iin;
+    Comparison* iinNotNull = new Comparison(iin, "!=", NULL_VALUE);
+    Comparison* instOfCheck = new Comparison(iin, " instanceof ",
+            new LiteralExpression(interfaceType->QualifiedName()));
+    IfStatement* instOfStatement = new IfStatement();
+        instOfStatement->expression = new Comparison(iinNotNull, "&&", instOfCheck);
+        instOfStatement->statements = new StatementBlock;
+        instOfStatement->statements->Add(new ReturnStatement(new Cast(interfaceType, iin)));
+    m->statements->Add(instOfStatement);
+
+    string proxyType = interfaceType->QualifiedName();
+    proxyType += ".Stub.Proxy";
+    NewExpression* ne = new NewExpression(NAMES.Find(proxyType));
+    ne->arguments.push_back(obj);
+    m->statements->Add(new ReturnStatement(ne));
+
+    this->elements.push_back(m);
+}
+
+
+
+// =================================================
+class ProxyClass : public Class
+{
+public:
+    ProxyClass(Type* type, InterfaceType* interfaceType);
+    virtual ~ProxyClass();
+
+    Variable* mRemote;
+    bool mOneWay;
+};
+
+ProxyClass::ProxyClass(Type* type, InterfaceType* interfaceType)
+    :Class()
+{
+    this->modifiers = PRIVATE | STATIC;
+    this->what = Class::CLASS;
+    this->type = type;
+    this->interfaces.push_back(interfaceType);
+
+    mOneWay = interfaceType->OneWay();
+
+    // IBinder mRemote
+    mRemote = new Variable(IBINDER_TYPE, "mRemote");
+    this->elements.push_back(new Field(PRIVATE, mRemote));
+
+    // Proxy()
+    Variable* remote = new Variable(IBINDER_TYPE, "remote");
+    Method* ctor = new Method;
+        ctor->name = "Proxy";
+        ctor->statements = new StatementBlock;
+        ctor->parameters.push_back(remote);
+    ctor->statements->Add(new Assignment(mRemote, remote));
+    this->elements.push_back(ctor);
+
+    // IBinder asBinder()
+    Method* asBinder = new Method;
+        asBinder->modifiers = PUBLIC | OVERRIDE;
+        asBinder->returnType = IBINDER_TYPE;
+        asBinder->name = "asBinder";
+        asBinder->statements = new StatementBlock;
+    asBinder->statements->Add(new ReturnStatement(mRemote));
+    this->elements.push_back(asBinder);
+}
+
+ProxyClass::~ProxyClass()
+{
+}
+
+// =================================================
+static void
+generate_new_array(Type* t, StatementBlock* addTo, Variable* v,
+                            Variable* parcel)
+{
+    Variable* len = new Variable(INT_TYPE, v->name + "_length");
+    addTo->Add(new VariableDeclaration(len, new MethodCall(parcel, "readInt")));
+    IfStatement* lencheck = new IfStatement();
+    lencheck->expression = new Comparison(len, "<", new LiteralExpression("0"));
+    lencheck->statements->Add(new Assignment(v, NULL_VALUE));
+    lencheck->elseif = new IfStatement();
+    lencheck->elseif->statements->Add(new Assignment(v,
+                new NewArrayExpression(t, len)));
+    addTo->Add(lencheck);
+}
+
+static void
+generate_write_to_parcel(Type* t, StatementBlock* addTo, Variable* v,
+                            Variable* parcel, int flags)
+{
+    if (v->dimension == 0) {
+        t->WriteToParcel(addTo, v, parcel, flags);
+    }
+    if (v->dimension == 1) {
+        t->WriteArrayToParcel(addTo, v, parcel, flags);
+    }
+}
+
+static void
+generate_create_from_parcel(Type* t, StatementBlock* addTo, Variable* v,
+                            Variable* parcel, Variable** cl)
+{
+    if (v->dimension == 0) {
+        t->CreateFromParcel(addTo, v, parcel, cl);
+    }
+    if (v->dimension == 1) {
+        t->CreateArrayFromParcel(addTo, v, parcel, cl);
+    }
+}
+
+static void
+generate_read_from_parcel(Type* t, StatementBlock* addTo, Variable* v,
+                            Variable* parcel, Variable** cl)
+{
+    if (v->dimension == 0) {
+        t->ReadFromParcel(addTo, v, parcel, cl);
+    }
+    if (v->dimension == 1) {
+        t->ReadArrayFromParcel(addTo, v, parcel, cl);
+    }
+}
+
+
+static void
+generate_method(const method_type* method, Class* interface,
+                    StubClass* stubClass, ProxyClass* proxyClass, int index)
+{
+    arg_type* arg;
+    int i;
+    bool hasOutParams = false;
+
+    const bool oneway = proxyClass->mOneWay || method->oneway;
+
+    // == the TRANSACT_ constant =============================================
+    string transactCodeName = "TRANSACTION_";
+    transactCodeName += method->name.data;
+
+    char transactCodeValue[60];
+    sprintf(transactCodeValue, "(android.os.IBinder.FIRST_CALL_TRANSACTION + %d)", index);
+
+    Field* transactCode = new Field(STATIC | FINAL,
+                            new Variable(INT_TYPE, transactCodeName));
+    transactCode->value = transactCodeValue;
+    stubClass->elements.push_back(transactCode);
+
+    // == the declaration in the interface ===================================
+    Method* decl = new Method;
+        decl->comment = gather_comments(method->comments_token->extra);
+        decl->modifiers = PUBLIC;
+        decl->returnType = NAMES.Search(method->type.type.data);
+        decl->returnTypeDimension = method->type.dimension;
+        decl->name = method->name.data;
+
+    arg = method->args;
+    while (arg != NULL) {
+        decl->parameters.push_back(new Variable(
+                            NAMES.Search(arg->type.type.data), arg->name.data,
+                            arg->type.dimension));
+        arg = arg->next;
+    }
+
+    decl->exceptions.push_back(REMOTE_EXCEPTION_TYPE);
+
+    interface->elements.push_back(decl);
+
+    // == the stub method ====================================================
+
+    Case* c = new Case(transactCodeName);
+
+    MethodCall* realCall = new MethodCall(THIS_VALUE, method->name.data);
+
+    // interface token validation is the very first thing we do
+    c->statements->Add(new MethodCall(stubClass->transact_data,
+            "enforceInterface", 1, new LiteralExpression("DESCRIPTOR")));
+
+    // args
+    Variable* cl = NULL;
+    VariableFactory stubArgs("_arg");
+    arg = method->args;
+    while (arg != NULL) {
+        Type* t = NAMES.Search(arg->type.type.data);
+        Variable* v = stubArgs.Get(t);
+        v->dimension = arg->type.dimension;
+
+        c->statements->Add(new VariableDeclaration(v));
+
+        if (convert_direction(arg->direction.data) & IN_PARAMETER) {
+            generate_create_from_parcel(t, c->statements, v,
+                    stubClass->transact_data, &cl);
+        } else {
+            if (arg->type.dimension == 0) {
+                c->statements->Add(new Assignment(v, new NewExpression(v->type)));
+            }
+            else if (arg->type.dimension == 1) {
+                generate_new_array(v->type, c->statements, v,
+                        stubClass->transact_data);
+            }
+            else {
+                fprintf(stderr, "aidl:internal error %s:%d\n", __FILE__,
+                        __LINE__);
+            }
+        }
+
+        realCall->arguments.push_back(v);
+
+        arg = arg->next;
+    }
+
+    // the real call
+    Variable* _result = NULL;
+    if (0 == strcmp(method->type.type.data, "void")) {
+        c->statements->Add(realCall);
+
+        if (!oneway) {
+            // report that there were no exceptions
+            MethodCall* ex = new MethodCall(stubClass->transact_reply,
+                    "writeNoException", 0);
+            c->statements->Add(ex);
+        }
+    } else {
+        _result = new Variable(decl->returnType, "_result",
+                                decl->returnTypeDimension);
+        c->statements->Add(new VariableDeclaration(_result, realCall));
+
+        if (!oneway) {
+            // report that there were no exceptions
+            MethodCall* ex = new MethodCall(stubClass->transact_reply,
+                    "writeNoException", 0);
+            c->statements->Add(ex);
+        }
+
+        // marshall the return value
+        generate_write_to_parcel(decl->returnType, c->statements, _result,
+                                    stubClass->transact_reply,
+                                    Type::PARCELABLE_WRITE_RETURN_VALUE);
+    }
+
+    // out parameters
+    i = 0;
+    arg = method->args;
+    while (arg != NULL) {
+        Type* t = NAMES.Search(arg->type.type.data);
+        Variable* v = stubArgs.Get(i++);
+
+        if (convert_direction(arg->direction.data) & OUT_PARAMETER) {
+            generate_write_to_parcel(t, c->statements, v,
+                                stubClass->transact_reply,
+                                Type::PARCELABLE_WRITE_RETURN_VALUE);
+            hasOutParams = true;
+        }
+
+        arg = arg->next;
+    }
+
+    // return true
+    c->statements->Add(new ReturnStatement(TRUE_VALUE));
+    stubClass->transact_switch->cases.push_back(c);
+
+    // == the proxy method ===================================================
+    Method* proxy = new Method;
+        proxy->comment = gather_comments(method->comments_token->extra);
+        proxy->modifiers = PUBLIC | OVERRIDE;
+        proxy->returnType = NAMES.Search(method->type.type.data);
+        proxy->returnTypeDimension = method->type.dimension;
+        proxy->name = method->name.data;
+        proxy->statements = new StatementBlock;
+        arg = method->args;
+        while (arg != NULL) {
+            proxy->parameters.push_back(new Variable(
+                            NAMES.Search(arg->type.type.data), arg->name.data,
+                            arg->type.dimension));
+            arg = arg->next;
+        }
+        proxy->exceptions.push_back(REMOTE_EXCEPTION_TYPE);
+    proxyClass->elements.push_back(proxy);
+
+    // the parcels
+    Variable* _data = new Variable(PARCEL_TYPE, "_data");
+    proxy->statements->Add(new VariableDeclaration(_data,
+                                new MethodCall(PARCEL_TYPE, "obtain")));
+    Variable* _reply = NULL;
+    if (!oneway) {
+        _reply = new Variable(PARCEL_TYPE, "_reply");
+        proxy->statements->Add(new VariableDeclaration(_reply,
+                                    new MethodCall(PARCEL_TYPE, "obtain")));
+    }
+
+    // the return value
+    _result = NULL;
+    if (0 != strcmp(method->type.type.data, "void")) {
+        _result = new Variable(proxy->returnType, "_result",
+                method->type.dimension);
+        proxy->statements->Add(new VariableDeclaration(_result));
+    }
+
+    // try and finally
+    TryStatement* tryStatement = new TryStatement();
+    proxy->statements->Add(tryStatement);
+    FinallyStatement* finallyStatement = new FinallyStatement();
+    proxy->statements->Add(finallyStatement);
+
+    // the interface identifier token: the DESCRIPTOR constant, marshalled as a string
+    tryStatement->statements->Add(new MethodCall(_data, "writeInterfaceToken",
+            1, new LiteralExpression("DESCRIPTOR")));
+
+    // the parameters
+    arg = method->args;
+    while (arg != NULL) {
+        Type* t = NAMES.Search(arg->type.type.data);
+        Variable* v = new Variable(t, arg->name.data, arg->type.dimension);
+        int dir = convert_direction(arg->direction.data);
+        if (dir == OUT_PARAMETER && arg->type.dimension != 0) {
+            IfStatement* checklen = new IfStatement();
+            checklen->expression = new Comparison(v, "==", NULL_VALUE);
+            checklen->statements->Add(new MethodCall(_data, "writeInt", 1,
+                        new LiteralExpression("-1")));
+            checklen->elseif = new IfStatement();
+            checklen->elseif->statements->Add(new MethodCall(_data, "writeInt",
+                        1, new FieldVariable(v, "length")));
+            tryStatement->statements->Add(checklen);
+        }
+        else if (dir & IN_PARAMETER) {
+            generate_write_to_parcel(t, tryStatement->statements, v, _data, 0);
+        }
+        arg = arg->next;
+    }
+
+    // the transact call
+    MethodCall* call = new MethodCall(proxyClass->mRemote, "transact", 4,
+                            new LiteralExpression("Stub." + transactCodeName),
+                            _data, _reply ? _reply : NULL_VALUE,
+                            new LiteralExpression(
+                                oneway ? "android.os.IBinder.FLAG_ONEWAY" : "0"));
+    tryStatement->statements->Add(call);
+
+    // throw back exceptions.
+    if (_reply) {
+        MethodCall* ex = new MethodCall(_reply, "readException", 0);
+        tryStatement->statements->Add(ex);
+    }
+
+    // returning and cleanup
+    if (_reply != NULL) {
+        if (_result != NULL) {
+            generate_create_from_parcel(proxy->returnType,
+                    tryStatement->statements, _result, _reply, &cl);
+        }
+
+        // the out/inout parameters
+        arg = method->args;
+        while (arg != NULL) {
+            Type* t = NAMES.Search(arg->type.type.data);
+            Variable* v = new Variable(t, arg->name.data, arg->type.dimension);
+            if (convert_direction(arg->direction.data) & OUT_PARAMETER) {
+                generate_read_from_parcel(t, tryStatement->statements,
+                                            v, _reply, &cl);
+            }
+            arg = arg->next;
+        }
+
+        finallyStatement->statements->Add(new MethodCall(_reply, "recycle"));
+    }
+    finallyStatement->statements->Add(new MethodCall(_data, "recycle"));
+
+    if (_result != NULL) {
+        proxy->statements->Add(new ReturnStatement(_result));
+    }
+}
+
+static void
+generate_interface_descriptors(StubClass* stub, ProxyClass* proxy)
+{
+    // the interface descriptor transaction handler
+    Case* c = new Case("INTERFACE_TRANSACTION");
+    c->statements->Add(new MethodCall(stub->transact_reply, "writeString",
+            1, new LiteralExpression("DESCRIPTOR")));
+    c->statements->Add(new ReturnStatement(TRUE_VALUE));
+    stub->transact_switch->cases.push_back(c);
+
+    // and the proxy-side method returning the descriptor directly
+    Method* getDesc = new Method;
+    getDesc->modifiers = PUBLIC;
+    getDesc->returnType = STRING_TYPE;
+    getDesc->returnTypeDimension = 0;
+    getDesc->name = "getInterfaceDescriptor";
+    getDesc->statements = new StatementBlock;
+    getDesc->statements->Add(new ReturnStatement(new LiteralExpression("DESCRIPTOR")));
+    proxy->elements.push_back(getDesc);
+}
+
+Class*
+generate_binder_interface_class(const interface_type* iface)
+{
+    InterfaceType* interfaceType = static_cast<InterfaceType*>(
+        NAMES.Find(iface->package, iface->name.data));
+
+    // the interface class
+    Class* interface = new Class;
+        interface->comment = gather_comments(iface->comments_token->extra);
+        interface->modifiers = PUBLIC;
+        interface->what = Class::INTERFACE;
+        interface->type = interfaceType;
+        interface->interfaces.push_back(IINTERFACE_TYPE);
+
+    // the stub inner class
+    StubClass* stub = new StubClass(
+        NAMES.Find(iface->package, append(iface->name.data, ".Stub").c_str()),
+        interfaceType);
+    interface->elements.push_back(stub);
+
+    // the proxy inner class
+    ProxyClass* proxy = new ProxyClass(
+        NAMES.Find(iface->package,
+                         append(iface->name.data, ".Stub.Proxy").c_str()),
+        interfaceType);
+    stub->elements.push_back(proxy);
+
+    // stub and proxy support for getInterfaceDescriptor()
+    generate_interface_descriptors(stub, proxy);
+
+    // all the declared methods of the interface
+    int index = 0;
+    interface_item_type* item = iface->interface_items;
+    while (item != NULL) {
+        if (item->item_type == METHOD_TYPE) {
+            method_type * method_item = (method_type*) item;
+            generate_method(method_item, interface, stub, proxy, method_item->assigned_id);
+        }
+        item = item->next;
+        index++;
+    }
+
+    return interface;
+}
+