mirror of
https://github.com/dart-lang/sdk
synced 2024-09-19 23:31:42 +00:00
2e89f4f4d6
R=asiva@google.com Review URL: https://codereview.chromium.org//63393003 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@30321 260f80e4-7a28-3924-810f-c04153c831b5
1955 lines
72 KiB
C++
1955 lines
72 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "lib/invocation_mirror.h"
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#include "vm/bootstrap_natives.h"
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#include "vm/class_finalizer.h"
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#include "vm/compiler.h"
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#include "vm/dart_entry.h"
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#include "vm/exceptions.h"
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#include "vm/object_store.h"
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#include "vm/parser.h"
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#include "vm/port.h"
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#include "vm/resolver.h"
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#include "vm/symbols.h"
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namespace dart {
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DEFINE_FLAG(bool, use_mirrored_compilation_error, false,
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"Wrap compilation errors that occur during reflective access in a "
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"MirroredCompilationError, rather than suspending the isolate.");
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DEFINE_FLAG(bool, support_find_in_context, false,
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"Experimental support for ClosureMirror.findInContext.");
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static RawInstance* CreateMirror(const String& mirror_class_name,
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const Array& constructor_arguments) {
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const Library& mirrors_lib = Library::Handle(Library::MirrorsLibrary());
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const String& constructor_name = Symbols::Dot();
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const Object& result = Object::Handle(
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DartLibraryCalls::InstanceCreate(mirrors_lib,
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mirror_class_name,
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constructor_name,
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constructor_arguments));
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ASSERT(!result.IsError());
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return Instance::Cast(result).raw();
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}
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static void ThrowMirroredCompilationError(const String& message) {
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Array& args = Array::Handle(Array::New(1));
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args.SetAt(0, message);
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Exceptions::ThrowByType(Exceptions::kMirroredCompilationError, args);
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UNREACHABLE();
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}
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static void ThrowInvokeError(const Error& error) {
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if (FLAG_use_mirrored_compilation_error && error.IsLanguageError()) {
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// A compilation error that was delayed by lazy compilation.
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const LanguageError& compilation_error = LanguageError::Cast(error);
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String& message = String::Handle(compilation_error.FormatMessage());
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ThrowMirroredCompilationError(message);
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UNREACHABLE();
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}
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Exceptions::PropagateError(error);
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UNREACHABLE();
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}
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// Conventions:
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// * For throwing a NSM in a class klass we use its runtime type as receiver,
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// i.e., klass.RareType().
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// * For throwing a NSM in a library, we just pass the null instance as
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// receiver.
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static void ThrowNoSuchMethod(const Instance& receiver,
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const String& function_name,
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const Function& function,
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const InvocationMirror::Call call,
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const InvocationMirror::Type type) {
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const Smi& invocation_type = Smi::Handle(Smi::New(
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InvocationMirror::EncodeType(call, type)));
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const Array& args = Array::Handle(Array::New(6));
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args.SetAt(0, receiver);
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args.SetAt(1, function_name);
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args.SetAt(2, invocation_type);
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// Parameter 3 (actual arguments): We omit this parameter to get the same
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// error message as one would get by invoking the function non-reflectively.
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// Parameter 4 (named arguments): We omit this parameters since we cannot
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// invoke functions with named parameters reflectively (using mirrors).
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if (!function.IsNull()) {
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const int total_num_parameters = function.NumParameters();
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const Array& array = Array::Handle(Array::New(total_num_parameters));
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String& param_name = String::Handle();
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for (int i = 0; i < total_num_parameters; i++) {
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param_name = function.ParameterNameAt(i);
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array.SetAt(i, param_name);
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}
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args.SetAt(5, array);
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}
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Exceptions::ThrowByType(Exceptions::kNoSuchMethod, args);
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UNREACHABLE();
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}
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DEFINE_NATIVE_ENTRY(Mirrors_isLocalPort, 1) {
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GET_NON_NULL_NATIVE_ARGUMENT(Instance, port, arguments->NativeArgAt(0));
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// Get the port id from the SendPort instance.
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const Object& id_obj = Object::Handle(DartLibraryCalls::PortGetId(port));
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if (id_obj.IsError()) {
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Exceptions::PropagateError(Error::Cast(id_obj));
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UNREACHABLE();
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}
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ASSERT(id_obj.IsSmi() || id_obj.IsMint());
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Integer& id = Integer::Handle();
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id ^= id_obj.raw();
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Dart_Port port_id = static_cast<Dart_Port>(id.AsInt64Value());
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return Bool::Get(PortMap::IsLocalPort(port_id)).raw();
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}
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static void EnsureConstructorsAreCompiled(const Function& func) {
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// Only generative constructors can have initializing formals.
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if (!func.IsConstructor()) return;
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const Class& cls = Class::Handle(func.Owner());
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const Error& error = Error::Handle(cls.EnsureIsFinalized(Isolate::Current()));
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if (!error.IsNull()) {
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ThrowInvokeError(error);
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UNREACHABLE();
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}
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if (!func.HasCode()) {
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const Error& error = Error::Handle(Compiler::CompileFunction(func));
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if (!error.IsNull()) {
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ThrowInvokeError(error);
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UNREACHABLE();
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}
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}
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}
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static RawInstance* CreateParameterMirrorList(const Function& func,
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const Instance& owner_mirror) {
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HANDLESCOPE(Isolate::Current());
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const intptr_t implicit_param_count = func.NumImplicitParameters();
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const intptr_t non_implicit_param_count = func.NumParameters() -
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implicit_param_count;
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const intptr_t index_of_first_optional_param =
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non_implicit_param_count - func.NumOptionalParameters();
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const intptr_t index_of_first_named_param =
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non_implicit_param_count - func.NumOptionalNamedParameters();
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const Array& results = Array::Handle(Array::New(non_implicit_param_count));
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const Array& args = Array::Handle(Array::New(9));
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// Return for synthetic functions and getters.
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if (func.IsGetterFunction() ||
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func.IsImplicitConstructor() ||
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func.IsImplicitGetterFunction() ||
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func.IsImplicitSetterFunction()) {
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return results.raw();
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}
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Smi& pos = Smi::Handle();
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String& name = String::Handle();
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Instance& param = Instance::Handle();
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Bool& is_final = Bool::Handle();
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Object& default_value = Object::Handle();
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Object& metadata = Object::Handle();
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// We force compilation of constructors to ensure the types of initializing
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// formals have been corrected. We do not force the compilation of all types
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// of functions because some have no body, e.g. signature functions.
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EnsureConstructorsAreCompiled(func);
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// Reparse the function for the following information:
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// * The default value of a parameter.
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// * Whether a parameters has been deflared as final.
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// * Any metadata associated with the parameter.
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const Object& result = Object::Handle(Parser::ParseFunctionParameters(func));
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if (result.IsError()) {
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ThrowInvokeError(Error::Cast(result));
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UNREACHABLE();
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}
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args.SetAt(0, MirrorReference::Handle(MirrorReference::New(func)));
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args.SetAt(2, owner_mirror);
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const Array& param_descriptor = Array::Cast(result);
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ASSERT(param_descriptor.Length() ==
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(Parser::kParameterEntrySize * non_implicit_param_count));
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for (intptr_t i = 0; i < non_implicit_param_count; i++) {
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pos ^= Smi::New(i);
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name ^= func.ParameterNameAt(implicit_param_count + i);
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is_final ^= param_descriptor.At(
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i * Parser::kParameterEntrySize + Parser::kParameterIsFinalOffset);
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default_value = param_descriptor.At(
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i * Parser::kParameterEntrySize + Parser::kParameterDefaultValueOffset);
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metadata = param_descriptor.At(
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i * Parser::kParameterEntrySize + Parser::kParameterMetadataOffset);
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ASSERT(default_value.IsNull() || default_value.IsInstance());
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// Arguments 0 (referent) and 2 (owner) are the same for all parameters. See
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// above.
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args.SetAt(1, name);
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args.SetAt(3, pos);
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args.SetAt(4, Bool::Get(i >= index_of_first_optional_param));
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args.SetAt(5, Bool::Get(i >= index_of_first_named_param));
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args.SetAt(6, is_final);
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args.SetAt(7, default_value);
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args.SetAt(8, metadata);
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param ^= CreateMirror(Symbols::_LocalParameterMirror(), args);
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results.SetAt(i, param);
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}
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results.MakeImmutable();
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return results.raw();
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}
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static RawInstance* CreateTypeVariableMirror(const TypeParameter& param,
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const Instance& owner_mirror) {
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const Array& args = Array::Handle(Array::New(3));
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args.SetAt(0, param);
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args.SetAt(1, String::Handle(param.name()));
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args.SetAt(2, owner_mirror);
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return CreateMirror(Symbols::_LocalTypeVariableMirror(), args);
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}
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// We create a list in native code and let Dart code create the type mirror
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// object and the ordered map.
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static RawInstance* CreateTypeVariableList(const Class& cls) {
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const TypeArguments& args = TypeArguments::Handle(cls.type_parameters());
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if (args.IsNull()) {
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return Object::empty_array().raw();
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}
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const Array& result = Array::Handle(Array::New(args.Length() * 2));
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TypeParameter& type = TypeParameter::Handle();
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String& name = String::Handle();
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for (intptr_t i = 0; i < args.Length(); i++) {
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type ^= args.TypeAt(i);
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ASSERT(type.IsTypeParameter());
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ASSERT(!type.IsMalformed());
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ASSERT(type.IsFinalized());
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name ^= type.name();
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result.SetAt(2 * i, name);
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result.SetAt(2 * i + 1, type);
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}
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return result.raw();
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}
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static RawInstance* CreateTypedefMirror(const Class& cls,
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const AbstractType& type,
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const Bool& is_declaration,
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const Instance& owner_mirror) {
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const Array& args = Array::Handle(Array::New(6));
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args.SetAt(0, MirrorReference::Handle(MirrorReference::New(cls)));
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args.SetAt(1, type);
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args.SetAt(2, String::Handle(cls.UserVisibleName()));
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args.SetAt(3, Bool::Get(cls.NumTypeParameters() != 0));
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args.SetAt(4, cls.NumTypeParameters() == 0 ? Bool::False() : is_declaration);
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args.SetAt(5, owner_mirror);
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return CreateMirror(Symbols::_LocalTypedefMirror(), args);
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}
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static RawInstance* CreateFunctionTypeMirror(const Class& cls,
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const AbstractType& type) {
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const Array& args = Array::Handle(Array::New(2));
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args.SetAt(0, MirrorReference::Handle(MirrorReference::New(cls)));
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args.SetAt(1, type);
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return CreateMirror(Symbols::_LocalFunctionTypeMirror(), args);
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}
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static RawInstance* CreateMethodMirror(const Function& func,
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const Instance& owner_mirror) {
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const Array& args = Array::Handle(Array::New(12));
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args.SetAt(0, MirrorReference::Handle(MirrorReference::New(func)));
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String& name = String::Handle(func.name());
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name = String::IdentifierPrettyNameRetainPrivate(name);
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args.SetAt(1, name);
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args.SetAt(2, owner_mirror);
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args.SetAt(3, Bool::Get(func.is_static()));
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args.SetAt(4, Bool::Get(func.is_abstract()));
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args.SetAt(5, Bool::Get(func.IsGetterFunction()));
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args.SetAt(6, Bool::Get(func.IsSetterFunction()));
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bool isConstructor = (func.kind() == RawFunction::kConstructor);
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args.SetAt(7, Bool::Get(isConstructor));
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args.SetAt(8, Bool::Get(isConstructor && func.is_const()));
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args.SetAt(9, Bool::Get(isConstructor && func.IsConstructor()));
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args.SetAt(10, Bool::Get(isConstructor && func.is_redirecting()));
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args.SetAt(11, Bool::Get(isConstructor && func.IsFactory()));
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return CreateMirror(Symbols::_LocalMethodMirror(), args);
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}
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static RawInstance* CreateVariableMirror(const Field& field,
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const Instance& owner_mirror) {
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const MirrorReference& field_ref =
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MirrorReference::Handle(MirrorReference::New(field));
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const String& name = String::Handle(field.name());
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const Array& args = Array::Handle(Array::New(7));
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args.SetAt(0, field_ref);
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args.SetAt(1, name);
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args.SetAt(2, owner_mirror);
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args.SetAt(3, Object::null_instance()); // Null for type.
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args.SetAt(4, Bool::Get(field.is_static()));
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args.SetAt(5, Bool::Get(field.is_final()));
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args.SetAt(6, Bool::Get(field.is_const()));
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return CreateMirror(Symbols::_LocalVariableMirror(), args);
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}
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static RawFunction* CallMethod(const Class& cls) {
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if (cls.IsSignatureClass()) {
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return cls.signature_function();
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}
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Class& lookup_cls = Class::Handle(cls.raw());
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Function& call_function = Function::Handle();
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do {
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call_function = lookup_cls.LookupDynamicFunction(Symbols::Call());
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if (!call_function.IsNull()) {
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return call_function.raw();
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}
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lookup_cls = lookup_cls.SuperClass();
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} while (!lookup_cls.IsNull());
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return Function::null();
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}
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static RawInstance* CreateClassMirror(const Class& cls,
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const AbstractType& type,
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const Bool& is_declaration,
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const Instance& owner_mirror) {
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ASSERT(!cls.IsDynamicClass() && !cls.IsVoidClass());
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ASSERT(!type.IsNull());
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ASSERT(type.IsFinalized());
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if (cls.IsSignatureClass()) {
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if (cls.IsCanonicalSignatureClass()) {
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// We represent function types as canonical signature classes.
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return CreateFunctionTypeMirror(cls, type);
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} else {
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// We represent typedefs as non-canonical signature classes.
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return CreateTypedefMirror(cls, type, is_declaration, owner_mirror);
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}
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}
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const Bool& is_generic = Bool::Get(cls.NumTypeParameters() != 0);
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const Bool& is_mixin_app_alias = Bool::Get(cls.is_mixin_app_alias());
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const Array& args = Array::Handle(Array::New(7));
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args.SetAt(0, MirrorReference::Handle(MirrorReference::New(cls)));
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args.SetAt(1, type);
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// We do not set the names of anonymous mixin applications because the mirrors
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// use a different naming convention than the VM (lib.S with lib.M and S&M
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// respectively).
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if (!cls.IsAnonymousMixinApplication()) {
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args.SetAt(2, String::Handle(cls.Name()));
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}
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args.SetAt(3, owner_mirror);
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args.SetAt(4, is_generic);
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args.SetAt(5, is_mixin_app_alias);
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args.SetAt(6, cls.NumTypeParameters() == 0 ? Bool::False() : is_declaration);
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return CreateMirror(Symbols::_LocalClassMirror(), args);
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}
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static RawInstance* CreateLibraryMirror(const Library& lib) {
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const Array& args = Array::Handle(Array::New(3));
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args.SetAt(0, MirrorReference::Handle(MirrorReference::New(lib)));
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String& str = String::Handle();
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str = lib.name();
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args.SetAt(1, str);
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str = lib.url();
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args.SetAt(2, str);
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return CreateMirror(Symbols::_LocalLibraryMirror(), args);
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}
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static RawInstance* CreateTypeMirror(const AbstractType& type) {
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ASSERT(type.IsFinalized());
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ASSERT(!type.IsMalformed());
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if (type.HasResolvedTypeClass()) {
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const Class& cls = Class::Handle(type.type_class());
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// Handle void and dynamic types.
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if (cls.IsVoidClass()) {
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Array& args = Array::Handle(Array::New(1));
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args.SetAt(0, Symbols::Void());
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// TODO(mlippautz): Create once in the VM isolate and retrieve from there.
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return CreateMirror(Symbols::_SpecialTypeMirror(), args);
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} else if (cls.IsDynamicClass()) {
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Array& args = Array::Handle(Array::New(1));
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args.SetAt(0, Symbols::Dynamic());
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// TODO(mlippautz): Create once in the VM isolate and retrieve from there.
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return CreateMirror(Symbols::_SpecialTypeMirror(), args);
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}
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return CreateClassMirror(cls, type, Bool::False(), Object::null_instance());
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} else if (type.IsTypeParameter()) {
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return CreateTypeVariableMirror(TypeParameter::Cast(type),
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Object::null_instance());
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} else if (type.IsBoundedType()) {
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AbstractType& actual_type =
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AbstractType::Handle(BoundedType::Cast(type).type());
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return CreateTypeMirror(actual_type);
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}
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UNREACHABLE();
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return Instance::null();
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}
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static RawInstance* CreateIsolateMirror() {
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Isolate* isolate = Isolate::Current();
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const String& debug_name = String::Handle(String::New(isolate->name()));
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const Library& root_library =
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Library::Handle(isolate, isolate->object_store()->root_library());
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const Instance& root_library_mirror =
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Instance::Handle(CreateLibraryMirror(root_library));
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const Array& args = Array::Handle(Array::New(2));
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args.SetAt(0, debug_name);
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args.SetAt(1, root_library_mirror);
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return CreateMirror(Symbols::_LocalIsolateMirror(), args);
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}
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static RawInstance* CreateMirrorSystem() {
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Isolate* isolate = Isolate::Current();
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const GrowableObjectArray& libraries =
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GrowableObjectArray::Handle(isolate->object_store()->libraries());
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const int num_libraries = libraries.Length();
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const Array& library_mirrors = Array::Handle(Array::New(num_libraries));
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Library& library = Library::Handle();
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Instance& library_mirror = Instance::Handle();
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for (int i = 0; i < num_libraries; i++) {
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library ^= libraries.At(i);
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library_mirror = CreateLibraryMirror(library);
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library_mirrors.SetAt(i, library_mirror);
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}
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const Instance& isolate_mirror = Instance::Handle(CreateIsolateMirror());
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const Array& args = Array::Handle(Array::New(2));
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args.SetAt(0, library_mirrors);
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args.SetAt(1, isolate_mirror);
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return CreateMirror(Symbols::_LocalMirrorSystem(), args);
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}
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static RawInstance* ReturnResult(const Object& result) {
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if (result.IsError()) {
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ThrowInvokeError(Error::Cast(result));
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UNREACHABLE();
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}
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if (result.IsInstance()) {
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return Instance::Cast(result).raw();
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}
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ASSERT(result.IsNull());
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return Instance::null();
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}
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// Invoke the function, or noSuchMethod if it is null. Propagate any unhandled
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// exceptions. Wrap and propagate any compilation errors.
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|
static RawInstance* InvokeDynamicFunction(
|
|
const Instance& receiver,
|
|
const Function& function,
|
|
const String& target_name,
|
|
const Array& args,
|
|
const Array& args_descriptor_array) {
|
|
// Note "args" is already the internal arguments with the receiver as the
|
|
// first element.
|
|
Object& result = Object::Handle();
|
|
ArgumentsDescriptor args_descriptor(args_descriptor_array);
|
|
if (function.IsNull() ||
|
|
!function.is_visible() ||
|
|
!function.AreValidArguments(args_descriptor, NULL)) {
|
|
result = DartEntry::InvokeNoSuchMethod(receiver,
|
|
target_name,
|
|
args,
|
|
args_descriptor_array);
|
|
} else {
|
|
result = DartEntry::InvokeFunction(function,
|
|
args,
|
|
args_descriptor_array);
|
|
}
|
|
return ReturnResult(result);
|
|
}
|
|
|
|
|
|
static RawInstance* InvokeLibraryGetter(const Library& library,
|
|
const String& getter_name,
|
|
const bool throw_nsm_if_absent) {
|
|
// To access a top-level we may need to use the Field or the getter Function.
|
|
// The getter function may either be in the library or in the field's owner
|
|
// class, depending on whether it was an actual getter, or an uninitialized
|
|
// field.
|
|
const Field& field = Field::Handle(
|
|
library.LookupLocalField(getter_name));
|
|
Function& getter = Function::Handle();
|
|
if (field.IsNull()) {
|
|
// No field found. Check for a getter in the lib.
|
|
const String& internal_getter_name =
|
|
String::Handle(Field::GetterName(getter_name));
|
|
getter = library.LookupLocalFunction(internal_getter_name);
|
|
if (getter.IsNull()) {
|
|
getter = library.LookupLocalFunction(getter_name);
|
|
if (!getter.IsNull()) {
|
|
// Looking for a getter but found a regular method: closurize it.
|
|
const Function& closure_function =
|
|
Function::Handle(getter.ImplicitClosureFunction());
|
|
return closure_function.ImplicitStaticClosure();
|
|
}
|
|
}
|
|
} else {
|
|
if (!field.IsUninitialized()) {
|
|
return field.value();
|
|
}
|
|
// An uninitialized field was found. Check for a getter in the field's
|
|
// owner classs.
|
|
const Class& klass = Class::Handle(field.owner());
|
|
const String& internal_getter_name =
|
|
String::Handle(Field::GetterName(getter_name));
|
|
getter = klass.LookupStaticFunction(internal_getter_name);
|
|
}
|
|
|
|
if (!getter.IsNull() && getter.is_visible()) {
|
|
// Invoke the getter and return the result.
|
|
const Object& result = Object::Handle(
|
|
DartEntry::InvokeFunction(getter, Object::empty_array()));
|
|
return ReturnResult(result);
|
|
}
|
|
|
|
if (throw_nsm_if_absent) {
|
|
ThrowNoSuchMethod(Instance::null_instance(),
|
|
getter_name,
|
|
getter,
|
|
InvocationMirror::kTopLevel,
|
|
InvocationMirror::kGetter);
|
|
UNREACHABLE();
|
|
}
|
|
|
|
// Fall through case: Indicate that we didn't find any function or field using
|
|
// a special null instance. This is different from a field being null. Callers
|
|
// make sure that this null does not leak into Dartland.
|
|
return Object::sentinel().raw();
|
|
}
|
|
|
|
|
|
// TODO(13656): Remove AllowPrivate.
|
|
static RawInstance* InvokeLibraryGetterAllowImports(
|
|
const Library& library,
|
|
const String& getter_name,
|
|
const bool throw_nsm_if_absent) {
|
|
// To access a top-level we may need to use the Field or the getter Function.
|
|
// The getter function may either be in the library or in the field's owner
|
|
// class, depending on whether it was an actual getter, or an uninitialized
|
|
// field.
|
|
const Field& field = Field::Handle(
|
|
library.LookupFieldAllowPrivate(getter_name));
|
|
Function& getter = Function::Handle();
|
|
if (field.IsNull()) {
|
|
// No field found. Check for a getter in the lib.
|
|
const String& internal_getter_name =
|
|
String::Handle(Field::GetterName(getter_name));
|
|
getter = library.LookupFunctionAllowPrivate(internal_getter_name);
|
|
if (getter.IsNull()) {
|
|
getter = library.LookupFunctionAllowPrivate(getter_name);
|
|
if (!getter.IsNull()) {
|
|
// Looking for a getter but found a regular method: closurize it.
|
|
const Function& closure_function =
|
|
Function::Handle(getter.ImplicitClosureFunction());
|
|
return closure_function.ImplicitStaticClosure();
|
|
}
|
|
}
|
|
} else {
|
|
if (!field.IsUninitialized()) {
|
|
return field.value();
|
|
}
|
|
// An uninitialized field was found. Check for a getter in the field's
|
|
// owner classs.
|
|
const Class& klass = Class::Handle(field.owner());
|
|
const String& internal_getter_name =
|
|
String::Handle(Field::GetterName(getter_name));
|
|
getter = klass.LookupStaticFunction(internal_getter_name);
|
|
}
|
|
|
|
if (!getter.IsNull() && getter.is_visible()) {
|
|
// Invoke the getter and return the result.
|
|
const Object& result = Object::Handle(
|
|
DartEntry::InvokeFunction(getter, Object::empty_array()));
|
|
return ReturnResult(result);
|
|
}
|
|
|
|
if (throw_nsm_if_absent) {
|
|
ThrowNoSuchMethod(Instance::null_instance(),
|
|
getter_name,
|
|
getter,
|
|
InvocationMirror::kTopLevel,
|
|
InvocationMirror::kGetter);
|
|
UNREACHABLE();
|
|
}
|
|
|
|
// Fall through case: Indicate that we didn't find any function or field using
|
|
// a special null instance. This is different from a field being null. Callers
|
|
// make sure that this null does not leak into Dartland.
|
|
return Object::sentinel().raw();
|
|
}
|
|
|
|
|
|
static RawInstance* InvokeClassGetter(const Class& klass,
|
|
const String& getter_name,
|
|
const bool throw_nsm_if_absent) {
|
|
// Note static fields do not have implicit getters.
|
|
const Field& field = Field::Handle(klass.LookupStaticField(getter_name));
|
|
if (field.IsNull() || field.IsUninitialized()) {
|
|
const String& internal_getter_name = String::Handle(
|
|
Field::GetterName(getter_name));
|
|
Function& getter = Function::Handle(
|
|
klass.LookupStaticFunction(internal_getter_name));
|
|
|
|
if (getter.IsNull() || !getter.is_visible()) {
|
|
if (getter.IsNull()) {
|
|
getter = klass.LookupStaticFunction(getter_name);
|
|
if (!getter.IsNull()) {
|
|
// Looking for a getter but found a regular method: closurize it.
|
|
const Function& closure_function =
|
|
Function::Handle(getter.ImplicitClosureFunction());
|
|
return closure_function.ImplicitStaticClosure();
|
|
}
|
|
}
|
|
if (throw_nsm_if_absent) {
|
|
ThrowNoSuchMethod(AbstractType::Handle(klass.RareType()),
|
|
getter_name,
|
|
getter,
|
|
InvocationMirror::kStatic,
|
|
InvocationMirror::kGetter);
|
|
UNREACHABLE();
|
|
}
|
|
// Fall through case: Indicate that we didn't find any function or field
|
|
// using a special null instance. This is different from a field being
|
|
// null. Callers make sure that this null does not leak into Dartland.
|
|
return Object::sentinel().raw();
|
|
}
|
|
|
|
// Invoke the getter and return the result.
|
|
const Object& result = Object::Handle(
|
|
DartEntry::InvokeFunction(getter, Object::empty_array()));
|
|
return ReturnResult(result);
|
|
}
|
|
return field.value();
|
|
}
|
|
|
|
|
|
|
|
|
|
static RawInstance* InvokeInstanceGetter(const Class& klass,
|
|
const Instance& reflectee,
|
|
const String& getter_name,
|
|
const bool throw_nsm_if_absent) {
|
|
const String& internal_getter_name = String::Handle(
|
|
Field::GetterName(getter_name));
|
|
Function& function = Function::Handle(
|
|
Resolver::ResolveDynamicAnyArgs(klass, internal_getter_name));
|
|
|
|
if (!function.IsNull() || throw_nsm_if_absent) {
|
|
const int kNumArgs = 1;
|
|
const Array& args = Array::Handle(Array::New(kNumArgs));
|
|
args.SetAt(0, reflectee);
|
|
const Array& args_descriptor =
|
|
Array::Handle(ArgumentsDescriptor::New(args.Length()));
|
|
|
|
// InvokeDynamic invokes NoSuchMethod if the provided function is null.
|
|
return InvokeDynamicFunction(reflectee,
|
|
function,
|
|
internal_getter_name,
|
|
args,
|
|
args_descriptor);
|
|
}
|
|
|
|
// Fall through case: Indicate that we didn't find any function or field using
|
|
// a special null instance. This is different from a field being null. Callers
|
|
// make sure that this null does not leak into Dartland.
|
|
return Object::sentinel().raw();
|
|
}
|
|
|
|
|
|
static RawInstance* LookupFunctionOrFieldInLibraryPrefix(
|
|
const LibraryPrefix& prefix,
|
|
const String& lookup_name) {
|
|
const Object& entry = Object::Handle(prefix.LookupObject(lookup_name));
|
|
if (!entry.IsNull()) {
|
|
if (entry.IsField()) {
|
|
const Field& field = Field::Cast(entry);
|
|
const Class& field_owner = Class::Handle(field.owner());
|
|
const Library& field_library = Library::Handle(field_owner.library());
|
|
const Instance& result = Instance::Handle(
|
|
InvokeLibraryGetterAllowImports(field_library, lookup_name, false));
|
|
if (result.raw() != Object::sentinel().raw()) {
|
|
return result.raw();
|
|
}
|
|
} else if (entry.IsFunction()) {
|
|
const Function& func = Function::Cast(entry);
|
|
const Function& closure_function = Function::Handle(
|
|
func.ImplicitClosureFunction());
|
|
return closure_function.ImplicitStaticClosure();
|
|
}
|
|
}
|
|
|
|
// Fall through case: Indicate that we didn't find any function or field using
|
|
// a special null instance. This is different from a field being null. Callers
|
|
// make sure that this null does not leak into Dartland.
|
|
return Object::sentinel().raw();
|
|
}
|
|
|
|
|
|
static RawInstance* LookupStaticFunctionOrFieldInClass(
|
|
const Class& klass,
|
|
const String& lookup_name) {
|
|
Instance& result = Instance::Handle(
|
|
InvokeClassGetter(klass, lookup_name, false));
|
|
if (result.raw() != Object::sentinel().raw()) {
|
|
return result.raw();
|
|
}
|
|
|
|
const Function& func =
|
|
Function::Handle(klass.LookupStaticFunction(lookup_name));
|
|
if (!func.IsNull()) {
|
|
const Function& closure_function = Function::Handle(
|
|
func.ImplicitClosureFunction());
|
|
ASSERT(!closure_function.IsNull());
|
|
return closure_function.ImplicitStaticClosure();
|
|
}
|
|
|
|
// Fall through case: Indicate that we didn't find any function or field using
|
|
// a special null instance. This is different from a field being null. Callers
|
|
// make sure that this null does not leak into Dartland.
|
|
return Object::sentinel().raw();
|
|
}
|
|
|
|
|
|
static RawInstance* LookupFunctionOrFieldInFunctionContext(
|
|
const Function& func,
|
|
const Context& ctx,
|
|
const String& lookup_name) {
|
|
const ContextScope& ctx_scope = ContextScope::Handle(func.context_scope());
|
|
intptr_t this_index = -1;
|
|
|
|
// Search local context.
|
|
String& name = String::Handle();
|
|
for (intptr_t i = 0; i < ctx_scope.num_variables(); i++) {
|
|
name ^= ctx_scope.NameAt(i);
|
|
if (name.Equals(lookup_name)) {
|
|
return ctx.At(i);
|
|
} else if (name.Equals(Symbols::This())) {
|
|
// Record instance index to search for the field in the instance
|
|
// afterwards.
|
|
this_index = i;
|
|
}
|
|
}
|
|
|
|
// Search the instance this function is attached to.
|
|
if (this_index >= 0) {
|
|
// Since we want the closurized version of a function, we can access, both,
|
|
// functions and fields through their implicit getter name. If the implicit
|
|
// getter does not exist for the function, a method extractor will be
|
|
// created.
|
|
const Class& owner = Class::Handle(func.Owner());
|
|
const Instance& receiver = Instance::Handle(ctx.At(this_index));
|
|
return InvokeInstanceGetter(owner, receiver, lookup_name, false);
|
|
}
|
|
|
|
// Fall through case: Indicate that we didn't find any function or field using
|
|
// a special null instance. This is different from a field being null. Callers
|
|
// make sure that this null does not leak into Dartland.
|
|
return Object::sentinel().raw();
|
|
}
|
|
|
|
|
|
static RawInstance* LookupFunctionOrFieldInLibraryHelper(
|
|
const Library& library,
|
|
const String& class_name,
|
|
const String& lookup_name) {
|
|
if (class_name.IsNull()) {
|
|
const Instance& result = Instance::Handle(
|
|
InvokeLibraryGetterAllowImports(library, lookup_name, false));
|
|
if (result.raw() != Object::sentinel().raw()) {
|
|
return result.raw();
|
|
}
|
|
const Function& func = Function::Handle(
|
|
library.LookupLocalFunction(lookup_name));
|
|
if (!func.IsNull()) {
|
|
const Function& closure_function = Function::Handle(
|
|
func.ImplicitClosureFunction());
|
|
return closure_function.ImplicitStaticClosure();
|
|
}
|
|
} else {
|
|
const Class& cls = Class::Handle(
|
|
library.LookupClass(class_name));
|
|
if (!cls.IsNull()) {
|
|
return LookupStaticFunctionOrFieldInClass(cls, lookup_name);
|
|
}
|
|
}
|
|
|
|
// Fall through case: Indicate that we didn't find any function or field using
|
|
// a special null instance. This is different from a field being null. Callers
|
|
// make sure that this null does not leak into Dartland.
|
|
return Object::sentinel().raw();
|
|
}
|
|
|
|
|
|
static RawInstance* LookupFunctionOrFieldInLibrary(const Library& library,
|
|
const String& class_name,
|
|
const String& lookup_name) {
|
|
Instance& result = Instance::Handle();
|
|
// Check current library.
|
|
result ^= LookupFunctionOrFieldInLibraryHelper(
|
|
library, class_name, lookup_name);
|
|
if (result.raw() != Object::sentinel().raw()) {
|
|
return result.raw();
|
|
}
|
|
// Check all imports.
|
|
Library& lib_it = Library::Handle();
|
|
for (intptr_t i = 0; i < library.num_imports(); i++) {
|
|
lib_it ^= library.ImportLibraryAt(i);
|
|
result ^= LookupFunctionOrFieldInLibraryHelper(
|
|
lib_it, class_name, lookup_name);
|
|
if (result.raw() != Object::sentinel().raw()) {
|
|
return result.raw();
|
|
}
|
|
}
|
|
|
|
// Fall through case: Indicate that we didn't find any function or field using
|
|
// a special null instance. This is different from a field being null. Callers
|
|
// make sure that this null does not leak into Dartland.
|
|
return Object::sentinel().raw();
|
|
}
|
|
|
|
|
|
static RawAbstractType* InstantiateType(const AbstractType& type,
|
|
const AbstractType& instantiator) {
|
|
ASSERT(type.IsFinalized());
|
|
ASSERT(!type.IsMalformed());
|
|
|
|
if (type.IsInstantiated()) {
|
|
return type.Canonicalize();
|
|
}
|
|
|
|
ASSERT(!instantiator.IsNull());
|
|
ASSERT(instantiator.IsFinalized());
|
|
ASSERT(!instantiator.IsMalformed());
|
|
|
|
const AbstractTypeArguments& type_args =
|
|
AbstractTypeArguments::Handle(instantiator.arguments());
|
|
Error& bound_error = Error::Handle();
|
|
AbstractType& result =
|
|
AbstractType::Handle(type.InstantiateFrom(type_args, &bound_error));
|
|
if (!bound_error.IsNull()) {
|
|
ThrowInvokeError(bound_error);
|
|
UNREACHABLE();
|
|
}
|
|
ASSERT(result.IsFinalized());
|
|
return result.Canonicalize();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Mirrors_makeLocalMirrorSystem, 0) {
|
|
return CreateMirrorSystem();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Mirrors_makeLocalClassMirror, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(AbstractType, type, arguments->NativeArgAt(0));
|
|
ASSERT(!type.IsMalformed());
|
|
ASSERT(type.IsFinalized());
|
|
ASSERT(type.HasResolvedTypeClass());
|
|
const Class& cls = Class::Handle(type.type_class());
|
|
ASSERT(!cls.IsNull());
|
|
if (cls.IsDynamicClass() ||
|
|
cls.IsVoidClass() ||
|
|
(cls.IsSignatureClass() && !cls.IsCanonicalSignatureClass())) {
|
|
Exceptions::ThrowArgumentError(type);
|
|
UNREACHABLE();
|
|
}
|
|
return CreateClassMirror(cls,
|
|
AbstractType::Handle(cls.DeclarationType()),
|
|
Bool::True(), // is_declaration
|
|
Object::null_instance());
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Mirrors_makeLocalTypeMirror, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(AbstractType, type, arguments->NativeArgAt(0));
|
|
return CreateTypeMirror(type);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Mirrors_mangleName, 2) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(String, name, arguments->NativeArgAt(0));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(1));
|
|
const Library& lib = Library::Handle(ref.GetLibraryReferent());
|
|
return lib.IsPrivate(name) ? lib.PrivateName(name) : name.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(MirrorReference_equals, 2) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, a, arguments->NativeArgAt(0));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, b, arguments->NativeArgAt(1));
|
|
return Bool::Get(a.referent() == b.referent()).raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(DeclarationMirror_metadata, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Instance, reflectee, arguments->NativeArgAt(0));
|
|
Object& decl = Object::Handle();
|
|
if (reflectee.IsMirrorReference()) {
|
|
const MirrorReference& decl_ref = MirrorReference::Cast(reflectee);
|
|
decl = decl_ref.referent();
|
|
} else if (reflectee.IsTypeParameter()) {
|
|
decl = reflectee.raw();
|
|
} else {
|
|
UNREACHABLE();
|
|
}
|
|
|
|
Class& klass = Class::Handle();
|
|
Library& library = Library::Handle();
|
|
|
|
if (decl.IsClass()) {
|
|
klass ^= decl.raw();
|
|
library = klass.library();
|
|
} else if (decl.IsFunction()) {
|
|
klass = Function::Cast(decl).origin();
|
|
library = klass.library();
|
|
} else if (decl.IsField()) {
|
|
klass = Field::Cast(decl).origin();
|
|
library = klass.library();
|
|
} else if (decl.IsLibrary()) {
|
|
library ^= decl.raw();
|
|
} else if (decl.IsTypeParameter()) {
|
|
klass ^= TypeParameter::Cast(decl).parameterized_class();
|
|
library = klass.library();
|
|
} else {
|
|
return Object::empty_array().raw();
|
|
}
|
|
|
|
const Object& metadata = Object::Handle(library.GetMetadata(decl));
|
|
if (metadata.IsError()) {
|
|
ThrowInvokeError(Error::Cast(metadata));
|
|
}
|
|
return metadata.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(FunctionTypeMirror_call_method, 2) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Instance,
|
|
owner_mirror,
|
|
arguments->NativeArgAt(0));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(1));
|
|
const Class& cls = Class::Handle(ref.GetClassReferent());
|
|
const Function& func = Function::Handle(CallMethod(cls));
|
|
ASSERT(!func.IsNull());
|
|
return CreateMethodMirror(func, owner_mirror);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(FunctionTypeMirror_parameters, 2) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Instance, owner, arguments->NativeArgAt(0));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(1));
|
|
const Class& cls = Class::Handle(ref.GetClassReferent());
|
|
const Function& func = Function::Handle(cls.signature_function());
|
|
return CreateParameterMirrorList(func, owner);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(FunctionTypeMirror_return_type, 2) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(0));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(AbstractType,
|
|
instantiator,
|
|
arguments->NativeArgAt(1));
|
|
const Class& cls = Class::Handle(ref.GetClassReferent());
|
|
const Function& func = Function::Handle(CallMethod(cls));
|
|
ASSERT(!func.IsNull());
|
|
AbstractType& type = AbstractType::Handle(func.result_type());
|
|
return InstantiateType(type, instantiator);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClassMirror_library, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(0));
|
|
const Class& klass = Class::Handle(ref.GetClassReferent());
|
|
const Library& library = Library::Handle(klass.library());
|
|
ASSERT(!library.IsNull());
|
|
return CreateLibraryMirror(library);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClassMirror_supertype, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(AbstractType, type, arguments->NativeArgAt(0));
|
|
ASSERT(!type.IsMalformed());
|
|
ASSERT(type.IsFinalized());
|
|
if (!type.HasResolvedTypeClass()) {
|
|
Exceptions::ThrowArgumentError(type);
|
|
UNREACHABLE();
|
|
}
|
|
const Class& cls = Class::Handle(type.type_class());
|
|
const AbstractType& super_type = AbstractType::Handle(cls.super_type());
|
|
ASSERT(super_type.IsNull() || super_type.IsFinalized());
|
|
return super_type.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClassMirror_supertype_instantiated, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(AbstractType, type, arguments->NativeArgAt(0));
|
|
ASSERT(!type.IsMalformed());
|
|
ASSERT(type.IsFinalized());
|
|
if (!type.HasResolvedTypeClass()) {
|
|
Exceptions::ThrowArgumentError(type);
|
|
UNREACHABLE();
|
|
}
|
|
const Class& cls = Class::Handle(type.type_class());
|
|
const AbstractType& super_type = AbstractType::Handle(cls.super_type());
|
|
return InstantiateType(super_type, type);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClassMirror_interfaces, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(AbstractType, type, arguments->NativeArgAt(0));
|
|
ASSERT(!type.IsMalformed());
|
|
ASSERT(type.IsFinalized());
|
|
if (!type.HasResolvedTypeClass()) {
|
|
Exceptions::ThrowArgumentError(type);
|
|
UNREACHABLE();
|
|
}
|
|
const Class& cls = Class::Handle(type.type_class());
|
|
const Error& error = Error::Handle(cls.EnsureIsFinalized(isolate));
|
|
if (!error.IsNull()) {
|
|
ThrowInvokeError(error);
|
|
}
|
|
|
|
return cls.interfaces();
|
|
}
|
|
|
|
DEFINE_NATIVE_ENTRY(ClassMirror_interfaces_instantiated, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(AbstractType, type, arguments->NativeArgAt(0));
|
|
ASSERT(!type.IsMalformed());
|
|
ASSERT(type.IsFinalized());
|
|
if (!type.HasResolvedTypeClass()) {
|
|
Exceptions::ThrowArgumentError(type);
|
|
UNREACHABLE();
|
|
}
|
|
const Class& cls = Class::Handle(type.type_class());
|
|
const Error& error = Error::Handle(cls.EnsureIsFinalized(isolate));
|
|
if (!error.IsNull()) {
|
|
ThrowInvokeError(error);
|
|
}
|
|
|
|
Array& interfaces = Array::Handle(cls.interfaces());
|
|
Array& interfaces_inst = Array::Handle(Array::New(interfaces.Length()));
|
|
AbstractType& interface = AbstractType::Handle();
|
|
|
|
for (int i = 0; i < interfaces.Length(); i++) {
|
|
interface ^= interfaces.At(i);
|
|
interface = InstantiateType(interface, type);
|
|
interfaces_inst.SetAt(i, interface);
|
|
}
|
|
|
|
return interfaces_inst.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClassMirror_mixin, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(AbstractType, type, arguments->NativeArgAt(0));
|
|
ASSERT(!type.IsMalformed());
|
|
ASSERT(type.IsFinalized());
|
|
if (!type.HasResolvedTypeClass()) {
|
|
Exceptions::ThrowArgumentError(type);
|
|
UNREACHABLE();
|
|
}
|
|
const Class& cls = Class::Handle(type.type_class());
|
|
const AbstractType& mixin_type = AbstractType::Handle(cls.mixin());
|
|
ASSERT(mixin_type.IsNull() || mixin_type.IsFinalized());
|
|
return mixin_type.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClassMirror_mixin_instantiated, 2) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(AbstractType, type, arguments->NativeArgAt(0));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(AbstractType,
|
|
instantiator,
|
|
arguments->NativeArgAt(1));
|
|
ASSERT(!type.IsMalformed());
|
|
ASSERT(type.IsFinalized());
|
|
if (!type.HasResolvedTypeClass()) {
|
|
Exceptions::ThrowArgumentError(type);
|
|
UNREACHABLE();
|
|
}
|
|
const Class& cls = Class::Handle(type.type_class());
|
|
const AbstractType& mixin_type = AbstractType::Handle(cls.mixin());
|
|
if (mixin_type.IsNull()) {
|
|
return mixin_type.raw();
|
|
}
|
|
|
|
return InstantiateType(mixin_type, instantiator);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClassMirror_members, 2) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Instance,
|
|
owner_mirror,
|
|
arguments->NativeArgAt(0));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(1));
|
|
const Class& klass = Class::Handle(ref.GetClassReferent());
|
|
|
|
const Error& error = Error::Handle(klass.EnsureIsFinalized(isolate));
|
|
if (!error.IsNull()) {
|
|
ThrowInvokeError(error);
|
|
}
|
|
|
|
const Array& fields = Array::Handle(klass.fields());
|
|
const intptr_t num_fields = fields.Length();
|
|
|
|
const Array& functions = Array::Handle(klass.functions());
|
|
const intptr_t num_functions = functions.Length();
|
|
|
|
Instance& member_mirror = Instance::Handle();
|
|
const GrowableObjectArray& member_mirrors = GrowableObjectArray::Handle(
|
|
GrowableObjectArray::New(num_fields + num_functions));
|
|
|
|
Field& field = Field::Handle();
|
|
for (intptr_t i = 0; i < num_fields; i++) {
|
|
field ^= fields.At(i);
|
|
member_mirror = CreateVariableMirror(field, owner_mirror);
|
|
member_mirrors.Add(member_mirror);
|
|
}
|
|
|
|
Function& func = Function::Handle();
|
|
for (intptr_t i = 0; i < num_functions; i++) {
|
|
func ^= functions.At(i);
|
|
if (func.is_visible() &&
|
|
(func.kind() == RawFunction::kRegularFunction ||
|
|
func.kind() == RawFunction::kGetterFunction ||
|
|
func.kind() == RawFunction::kSetterFunction)) {
|
|
member_mirror = CreateMethodMirror(func, owner_mirror);
|
|
member_mirrors.Add(member_mirror);
|
|
}
|
|
}
|
|
|
|
return member_mirrors.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClassMirror_constructors, 2) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Instance,
|
|
owner_mirror,
|
|
arguments->NativeArgAt(0));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(1));
|
|
const Class& klass = Class::Handle(ref.GetClassReferent());
|
|
|
|
const Error& error = Error::Handle(klass.EnsureIsFinalized(isolate));
|
|
if (!error.IsNull()) {
|
|
ThrowInvokeError(error);
|
|
}
|
|
|
|
const Array& functions = Array::Handle(klass.functions());
|
|
const intptr_t num_functions = functions.Length();
|
|
|
|
Instance& constructor_mirror = Instance::Handle();
|
|
const GrowableObjectArray& constructor_mirrors = GrowableObjectArray::Handle(
|
|
GrowableObjectArray::New(num_functions));
|
|
|
|
Function& func = Function::Handle();
|
|
for (intptr_t i = 0; i < num_functions; i++) {
|
|
func ^= functions.At(i);
|
|
if (func.kind() == RawFunction::kConstructor) {
|
|
constructor_mirror = CreateMethodMirror(func, owner_mirror);
|
|
constructor_mirrors.Add(constructor_mirror);
|
|
}
|
|
}
|
|
|
|
return constructor_mirrors.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(LibraryMirror_members, 2) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Instance,
|
|
owner_mirror,
|
|
arguments->NativeArgAt(0));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(1));
|
|
const Library& library = Library::Handle(ref.GetLibraryReferent());
|
|
|
|
Instance& member_mirror = Instance::Handle();
|
|
const GrowableObjectArray& member_mirrors =
|
|
GrowableObjectArray::Handle(GrowableObjectArray::New());
|
|
|
|
Object& entry = Object::Handle();
|
|
DictionaryIterator entries(library);
|
|
|
|
AbstractType& type = AbstractType::Handle();
|
|
|
|
while (entries.HasNext()) {
|
|
entry = entries.GetNext();
|
|
if (entry.IsClass()) {
|
|
const Class& klass = Class::Cast(entry);
|
|
// We filter out function signature classes and dynamic.
|
|
// TODO(12478): Should not need to filter out dynamic.
|
|
if (!klass.IsCanonicalSignatureClass() &&
|
|
!klass.IsDynamicClass() &&
|
|
!klass.IsAnonymousMixinApplication()) {
|
|
type = klass.DeclarationType();
|
|
member_mirror = CreateClassMirror(klass,
|
|
type,
|
|
Bool::True(), // is_declaration
|
|
owner_mirror);
|
|
member_mirrors.Add(member_mirror);
|
|
}
|
|
} else if (entry.IsField()) {
|
|
const Field& field = Field::Cast(entry);
|
|
member_mirror = CreateVariableMirror(field, owner_mirror);
|
|
member_mirrors.Add(member_mirror);
|
|
} else if (entry.IsFunction()) {
|
|
const Function& func = Function::Cast(entry);
|
|
if (func.kind() == RawFunction::kRegularFunction ||
|
|
func.kind() == RawFunction::kGetterFunction ||
|
|
func.kind() == RawFunction::kSetterFunction) {
|
|
member_mirror = CreateMethodMirror(func, owner_mirror);
|
|
member_mirrors.Add(member_mirror);
|
|
}
|
|
}
|
|
}
|
|
|
|
return member_mirrors.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClassMirror_type_variables, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(0));
|
|
const Class& klass = Class::Handle(ref.GetClassReferent());
|
|
return CreateTypeVariableList(klass);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClassMirror_type_arguments, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(AbstractType, type, arguments->NativeArgAt(0));
|
|
|
|
const Class& cls = Class::Handle(type.type_class());
|
|
const intptr_t num_params = cls.NumTypeParameters();
|
|
|
|
if (num_params == 0) {
|
|
return Object::empty_array().raw();
|
|
}
|
|
|
|
const Array& result = Array::Handle(Array::New(num_params));
|
|
AbstractType& arg_type = AbstractType::Handle();
|
|
Instance& type_mirror = Instance::Handle();
|
|
const AbstractTypeArguments& args =
|
|
AbstractTypeArguments::Handle(type.arguments());
|
|
|
|
// Handle argument lists that have been optimized away, because either no
|
|
// arguments have been provided, or all arguments are dynamic. Return a list
|
|
// of typemirrors on dynamic in this case.
|
|
if (args.IsNull()) {
|
|
arg_type ^= Object::dynamic_type();
|
|
type_mirror ^= CreateTypeMirror(arg_type);
|
|
for (intptr_t i = 0; i < num_params; i++) {
|
|
result.SetAt(i, type_mirror);
|
|
}
|
|
return result.raw();
|
|
}
|
|
|
|
ASSERT(args.Length() >= num_params);
|
|
const intptr_t num_inherited_args = args.Length() - num_params;
|
|
for (intptr_t i = 0; i < num_params; i++) {
|
|
arg_type ^= args.TypeAt(i + num_inherited_args);
|
|
type_mirror = CreateTypeMirror(arg_type);
|
|
result.SetAt(i, type_mirror);
|
|
}
|
|
return result.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(TypeVariableMirror_owner, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(TypeParameter, param, arguments->NativeArgAt(0));
|
|
const Class& owner = Class::Handle(param.parameterized_class());
|
|
const AbstractType& type = AbstractType::Handle(owner.DeclarationType());
|
|
return CreateClassMirror(owner,
|
|
type,
|
|
Bool::True(), // is_declaration
|
|
Instance::null_instance());
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(TypeVariableMirror_upper_bound, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(TypeParameter, param, arguments->NativeArgAt(0));
|
|
return param.bound();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(TypedefMirror_declaration, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Type, type, arguments->NativeArgAt(0));
|
|
const Class& cls = Class::Handle(type.type_class());
|
|
// We represent typedefs as non-canonical signature classes.
|
|
ASSERT(cls.IsSignatureClass() && !cls.IsCanonicalSignatureClass());
|
|
return CreateTypedefMirror(cls,
|
|
AbstractType::Handle(cls.DeclarationType()),
|
|
Bool::True(), // is_declaration
|
|
Object::null_instance());
|
|
}
|
|
|
|
DEFINE_NATIVE_ENTRY(InstanceMirror_invoke, 5) {
|
|
// Argument 0 is the mirror, which is unused by the native. It exists
|
|
// because this native is an instance method in order to be polymorphic
|
|
// with its cousins.
|
|
GET_NATIVE_ARGUMENT(Instance, reflectee, arguments->NativeArgAt(1));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(
|
|
String, function_name, arguments->NativeArgAt(2));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Array, args, arguments->NativeArgAt(3));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Array, arg_names, arguments->NativeArgAt(4));
|
|
|
|
Class& klass = Class::Handle(reflectee.clazz());
|
|
Function& function = Function::Handle(
|
|
Resolver::ResolveDynamicAnyArgs(klass, function_name));
|
|
|
|
const Array& args_descriptor =
|
|
Array::Handle(ArgumentsDescriptor::New(args.Length(), arg_names));
|
|
|
|
return InvokeDynamicFunction(reflectee,
|
|
function,
|
|
function_name,
|
|
args,
|
|
args_descriptor);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(InstanceMirror_invokeGetter, 3) {
|
|
// Argument 0 is the mirror, which is unused by the native. It exists
|
|
// because this native is an instance method in order to be polymorphic
|
|
// with its cousins.
|
|
GET_NATIVE_ARGUMENT(Instance, reflectee, arguments->NativeArgAt(1));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(String, getter_name, arguments->NativeArgAt(2));
|
|
Class& klass = Class::Handle(reflectee.clazz());
|
|
return InvokeInstanceGetter(klass, reflectee, getter_name, true);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(InstanceMirror_invokeSetter, 4) {
|
|
// Argument 0 is the mirror, which is unused by the native. It exists
|
|
// because this native is an instance method in order to be polymorphic
|
|
// with its cousins.
|
|
GET_NATIVE_ARGUMENT(Instance, reflectee, arguments->NativeArgAt(1));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(String, setter_name, arguments->NativeArgAt(2));
|
|
GET_NATIVE_ARGUMENT(Instance, value, arguments->NativeArgAt(3));
|
|
|
|
const Class& klass = Class::Handle(reflectee.clazz());
|
|
const String& internal_setter_name =
|
|
String::Handle(Field::SetterName(setter_name));
|
|
const Function& setter = Function::Handle(
|
|
Resolver::ResolveDynamicAnyArgs(klass, internal_setter_name));
|
|
|
|
const int kNumArgs = 2;
|
|
const Array& args = Array::Handle(Array::New(kNumArgs));
|
|
args.SetAt(0, reflectee);
|
|
args.SetAt(1, value);
|
|
const Array& args_descriptor =
|
|
Array::Handle(ArgumentsDescriptor::New(args.Length()));
|
|
|
|
return InvokeDynamicFunction(reflectee,
|
|
setter,
|
|
internal_setter_name,
|
|
args,
|
|
args_descriptor);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(InstanceMirror_computeType, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Instance, instance, arguments->NativeArgAt(0));
|
|
const Type& type = Type::Handle(instance.GetType());
|
|
// The static type of null is specified to be the bottom type, however, the
|
|
// runtime type of null is the Null type, which we correctly return here.
|
|
return type.Canonicalize();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClosureMirror_apply, 2) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Array, args, arguments->NativeArgAt(0));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Array, arg_names, arguments->NativeArgAt(1));
|
|
|
|
const Array& args_descriptor =
|
|
Array::Handle(ArgumentsDescriptor::New(args.Length(), arg_names));
|
|
|
|
const Object& result =
|
|
Object::Handle(DartEntry::InvokeClosure(args, args_descriptor));
|
|
if (result.IsError()) {
|
|
ThrowInvokeError(Error::Cast(result));
|
|
UNREACHABLE();
|
|
}
|
|
return result.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClosureMirror_find_in_context, 2) {
|
|
if (!FLAG_support_find_in_context) {
|
|
return Object::empty_array().raw();
|
|
}
|
|
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Instance, closure, arguments->NativeArgAt(0));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Array, lookup_parts, arguments->NativeArgAt(1));
|
|
ASSERT(lookup_parts.Length() >= 1 && lookup_parts.Length() <= 3);
|
|
|
|
if (!closure.IsClosure()) {
|
|
const Array& result_tuple = Array::Handle(Array::New(2));
|
|
result_tuple.SetAt(0, Bool::False());
|
|
return result_tuple.raw();
|
|
}
|
|
|
|
Function& function = Function::Handle();
|
|
const bool callable = closure.IsCallable(&function, NULL);
|
|
ASSERT(callable);
|
|
|
|
const int parts_len = lookup_parts.Length();
|
|
// Lookup name is always the last part.
|
|
const String& lookup_name = String::Handle(String::RawCast(
|
|
lookup_parts.At(parts_len - 1)));
|
|
|
|
String& part_name = String::Handle();
|
|
Class& owner = Class::Handle(function.Owner());
|
|
LibraryPrefix& prefix = LibraryPrefix::Handle();
|
|
Library& this_library = Library::Handle(owner.library());
|
|
Instance& result = Instance::Handle(Object::sentinel().raw());
|
|
if (parts_len == 1) {
|
|
// Could be either a field in context, an instance or static field of the
|
|
// enclosing class, or a field in the current library or any imported
|
|
// library.
|
|
result ^= LookupFunctionOrFieldInFunctionContext(
|
|
function, Context::Handle(Closure::context(closure)), lookup_name);
|
|
if (result.raw() == Object::sentinel().raw()) {
|
|
result ^= LookupStaticFunctionOrFieldInClass(owner, lookup_name);
|
|
}
|
|
if (result.raw() == Object::sentinel().raw()) {
|
|
result ^= LookupFunctionOrFieldInLibrary(this_library,
|
|
part_name,
|
|
lookup_name);
|
|
}
|
|
} else if (parts_len == 2) {
|
|
// Could be either library.field or class.staticfield.
|
|
part_name ^= lookup_parts.At(0);
|
|
prefix ^= this_library.LookupLocalLibraryPrefix(part_name);
|
|
if (prefix.IsNull()) {
|
|
result ^= LookupFunctionOrFieldInLibrary(this_library,
|
|
part_name,
|
|
lookup_name);
|
|
} else {
|
|
result ^= LookupFunctionOrFieldInLibraryPrefix(prefix, lookup_name);
|
|
}
|
|
} else {
|
|
ASSERT(parts_len == 3);
|
|
// Can only be library.class.staticfield.
|
|
part_name ^= lookup_parts.At(0);
|
|
prefix ^= this_library.LookupLocalLibraryPrefix(part_name);
|
|
if (!prefix.IsNull()) {
|
|
part_name ^= lookup_parts.At(1);
|
|
owner ^= prefix.LookupClass(part_name);
|
|
if (!owner.IsNull()) {
|
|
result ^= LookupStaticFunctionOrFieldInClass(owner, lookup_name);
|
|
}
|
|
}
|
|
}
|
|
|
|
// We return a tuple (list) where the first slot is a boolean indicates
|
|
// whether we found a field or function and the second slot contains the
|
|
// result. This is needed to distinguish between not finding a field and a
|
|
// field containing null as value.
|
|
const Array& result_tuple = Array::Handle(Array::New(2));
|
|
if (result.raw() == Object::sentinel().raw()) {
|
|
result_tuple.SetAt(0, Bool::False());
|
|
// No need to set the value.
|
|
} else {
|
|
result_tuple.SetAt(0, Bool::True());
|
|
result_tuple.SetAt(1, result);
|
|
}
|
|
return result_tuple.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClosureMirror_function, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Instance, closure, arguments->NativeArgAt(0));
|
|
ASSERT(!closure.IsNull());
|
|
|
|
Function& function = Function::Handle();
|
|
bool callable = closure.IsCallable(&function, NULL);
|
|
if (callable) {
|
|
return CreateMethodMirror(function, Instance::null_instance());
|
|
}
|
|
return Instance::null();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClassMirror_invoke, 5) {
|
|
// Argument 0 is the mirror, which is unused by the native. It exists
|
|
// because this native is an instance method in order to be polymorphic
|
|
// with its cousins.
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(1));
|
|
const Class& klass = Class::Handle(ref.GetClassReferent());
|
|
GET_NON_NULL_NATIVE_ARGUMENT(
|
|
String, function_name, arguments->NativeArgAt(2));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Array, args, arguments->NativeArgAt(3));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Array, arg_names, arguments->NativeArgAt(4));
|
|
|
|
const Array& args_descriptor_array =
|
|
Array::Handle(ArgumentsDescriptor::New(args.Length(), arg_names));
|
|
|
|
const Function& function = Function::Handle(
|
|
klass.LookupStaticFunction(function_name));
|
|
|
|
ArgumentsDescriptor args_descriptor(args_descriptor_array);
|
|
if (function.IsNull() ||
|
|
!function.AreValidArguments(args_descriptor, NULL) ||
|
|
!function.is_visible()) {
|
|
ThrowNoSuchMethod(AbstractType::Handle(klass.RareType()),
|
|
function_name,
|
|
function,
|
|
InvocationMirror::kStatic,
|
|
InvocationMirror::kMethod);
|
|
UNREACHABLE();
|
|
}
|
|
|
|
Object& result = Object::Handle(
|
|
DartEntry::InvokeFunction(function, args, args_descriptor_array));
|
|
if (result.IsError()) {
|
|
ThrowInvokeError(Error::Cast(result));
|
|
UNREACHABLE();
|
|
}
|
|
return result.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClassMirror_invokeGetter, 3) {
|
|
// Argument 0 is the mirror, which is unused by the native. It exists
|
|
// because this native is an instance method in order to be polymorphic
|
|
// with its cousins.
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(1));
|
|
const Class& klass = Class::Handle(ref.GetClassReferent());
|
|
GET_NON_NULL_NATIVE_ARGUMENT(String, getter_name, arguments->NativeArgAt(2));
|
|
return InvokeClassGetter(klass, getter_name, true);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClassMirror_invokeSetter, 4) {
|
|
// Argument 0 is the mirror, which is unused by the native. It exists
|
|
// because this native is an instance method in order to be polymorphic
|
|
// with its cousins.
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(1));
|
|
const Class& klass = Class::Handle(ref.GetClassReferent());
|
|
GET_NON_NULL_NATIVE_ARGUMENT(String, setter_name, arguments->NativeArgAt(2));
|
|
GET_NATIVE_ARGUMENT(Instance, value, arguments->NativeArgAt(3));
|
|
|
|
// Check for real fields and user-defined setters.
|
|
const Field& field = Field::Handle(klass.LookupStaticField(setter_name));
|
|
Function& setter = Function::Handle();
|
|
if (field.IsNull()) {
|
|
const String& internal_setter_name = String::Handle(
|
|
Field::SetterName(setter_name));
|
|
|
|
setter = klass.LookupStaticFunction(internal_setter_name);
|
|
|
|
if (setter.IsNull() || !setter.is_visible()) {
|
|
ThrowNoSuchMethod(AbstractType::Handle(klass.RareType()),
|
|
setter_name,
|
|
setter,
|
|
InvocationMirror::kStatic,
|
|
InvocationMirror::kSetter);
|
|
UNREACHABLE();
|
|
}
|
|
|
|
// Invoke the setter and return the result.
|
|
const int kNumArgs = 1;
|
|
const Array& args = Array::Handle(Array::New(kNumArgs));
|
|
args.SetAt(0, value);
|
|
|
|
Object& result = Object::Handle(
|
|
DartEntry::InvokeFunction(setter, args));
|
|
if (result.IsError()) {
|
|
ThrowInvokeError(Error::Cast(result));
|
|
UNREACHABLE();
|
|
}
|
|
return result.raw();
|
|
}
|
|
|
|
if (field.is_final()) {
|
|
ThrowNoSuchMethod(AbstractType::Handle(klass.RareType()),
|
|
setter_name,
|
|
setter,
|
|
InvocationMirror::kStatic,
|
|
InvocationMirror::kSetter);
|
|
UNREACHABLE();
|
|
}
|
|
|
|
field.set_value(value);
|
|
return value.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(ClassMirror_invokeConstructor, 5) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(0));
|
|
const Class& klass = Class::Handle(ref.GetClassReferent());
|
|
GET_NATIVE_ARGUMENT(Type, type, arguments->NativeArgAt(1));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(
|
|
String, constructor_name, arguments->NativeArgAt(2));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Array, explicit_args, arguments->NativeArgAt(3));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Array, arg_names, arguments->NativeArgAt(4));
|
|
|
|
// By convention, the static function implementing a named constructor 'C'
|
|
// for class 'A' is labeled 'A.C', and the static function implementing the
|
|
// unnamed constructor for class 'A' is labeled 'A.'.
|
|
// This convention prevents users from explicitly calling constructors.
|
|
const String& klass_name = String::Handle(klass.Name());
|
|
String& internal_constructor_name =
|
|
String::Handle(String::Concat(klass_name, Symbols::Dot()));
|
|
if (!constructor_name.IsNull()) {
|
|
internal_constructor_name =
|
|
String::Concat(internal_constructor_name, constructor_name);
|
|
}
|
|
|
|
Function& lookup_constructor = Function::Handle(
|
|
klass.LookupFunction(internal_constructor_name));
|
|
|
|
if (lookup_constructor.IsNull() ||
|
|
!(lookup_constructor.IsConstructor() || lookup_constructor.IsFactory()) ||
|
|
!lookup_constructor.is_visible()) {
|
|
// Pretend we didn't find the constructor at all when the arity is wrong
|
|
// so as to produce the same NoSuchMethodError as the non-reflective case.
|
|
lookup_constructor = Function::null();
|
|
ThrowNoSuchMethod(AbstractType::Handle(klass.RareType()),
|
|
internal_constructor_name,
|
|
lookup_constructor,
|
|
InvocationMirror::kConstructor,
|
|
InvocationMirror::kMethod);
|
|
UNREACHABLE();
|
|
}
|
|
|
|
ASSERT(!type.IsNull());
|
|
AbstractTypeArguments& type_arguments =
|
|
AbstractTypeArguments::Handle(type.arguments());
|
|
if (!type.IsInstantiated()) {
|
|
// Must have been a declaration type.
|
|
AbstractType& rare_type = AbstractType::Handle(klass.RareType());
|
|
ASSERT(rare_type.IsInstantiated());
|
|
type_arguments = rare_type.arguments();
|
|
}
|
|
|
|
Class& redirected_klass = Class::Handle(klass.raw());
|
|
Function& redirected_constructor = Function::Handle(lookup_constructor.raw());
|
|
if (lookup_constructor.IsRedirectingFactory()) {
|
|
ClassFinalizer::ResolveRedirectingFactory(klass, lookup_constructor);
|
|
Type& redirect_type = Type::Handle(lookup_constructor.RedirectionType());
|
|
|
|
if (!redirect_type.IsInstantiated()) {
|
|
// The type arguments of the redirection type are instantiated from the
|
|
// type arguments of the type reflected by the class mirror.
|
|
Error& bound_error = Error::Handle();
|
|
redirect_type ^= redirect_type.InstantiateFrom(type_arguments,
|
|
&bound_error);
|
|
if (!bound_error.IsNull()) {
|
|
ThrowInvokeError(bound_error);
|
|
UNREACHABLE();
|
|
}
|
|
}
|
|
|
|
type = redirect_type.raw();
|
|
type_arguments = redirect_type.arguments();
|
|
|
|
redirected_constructor = lookup_constructor.RedirectionTarget();
|
|
ASSERT(!redirected_constructor.IsNull());
|
|
redirected_klass = type.type_class();
|
|
}
|
|
|
|
const intptr_t num_explicit_args = explicit_args.Length();
|
|
const intptr_t num_implicit_args =
|
|
redirected_constructor.IsConstructor() ? 2 : 1;
|
|
const Array& args =
|
|
Array::Handle(Array::New(num_implicit_args + num_explicit_args));
|
|
|
|
// Copy over the explicit arguments.
|
|
Object& explicit_argument = Object::Handle();
|
|
for (int i = 0; i < num_explicit_args; i++) {
|
|
explicit_argument = explicit_args.At(i);
|
|
args.SetAt(i + num_implicit_args, explicit_argument);
|
|
}
|
|
|
|
const Array& args_descriptor_array =
|
|
Array::Handle(ArgumentsDescriptor::New(args.Length(),
|
|
arg_names));
|
|
|
|
ArgumentsDescriptor args_descriptor(args_descriptor_array);
|
|
if (!redirected_constructor.AreValidArguments(args_descriptor, NULL) ||
|
|
!redirected_constructor.is_visible()) {
|
|
// Pretend we didn't find the constructor at all when the arity is wrong
|
|
// so as to produce the same NoSuchMethodError as the non-reflective case.
|
|
redirected_constructor = Function::null();
|
|
ThrowNoSuchMethod(AbstractType::Handle(klass.RareType()),
|
|
internal_constructor_name,
|
|
redirected_constructor,
|
|
InvocationMirror::kConstructor,
|
|
InvocationMirror::kMethod);
|
|
UNREACHABLE();
|
|
}
|
|
|
|
Instance& new_object = Instance::Handle();
|
|
if (redirected_constructor.IsConstructor()) {
|
|
// Constructors get the uninitialized object and a constructor phase. Note
|
|
// we have delayed allocation until after the function type and argument
|
|
// matching checks.
|
|
new_object = Instance::New(redirected_klass);
|
|
if (!type_arguments.IsNull()) {
|
|
// The type arguments will be null if the class has no type parameters, in
|
|
// which case the following call would fail because there is no slot
|
|
// reserved in the object for the type vector.
|
|
new_object.SetTypeArguments(type_arguments);
|
|
}
|
|
args.SetAt(0, new_object);
|
|
args.SetAt(1, Smi::Handle(Smi::New(Function::kCtorPhaseAll)));
|
|
} else {
|
|
// Factories get type arguments.
|
|
args.SetAt(0, type_arguments);
|
|
}
|
|
|
|
// Invoke the constructor and return the new object.
|
|
const Object& result =
|
|
Object::Handle(DartEntry::InvokeFunction(redirected_constructor,
|
|
args,
|
|
args_descriptor_array));
|
|
if (result.IsError()) {
|
|
ThrowInvokeError(Error::Cast(result));
|
|
UNREACHABLE();
|
|
}
|
|
|
|
// Factories may return null.
|
|
ASSERT(result.IsInstance() || result.IsNull());
|
|
|
|
if (redirected_constructor.IsConstructor()) {
|
|
return new_object.raw();
|
|
} else {
|
|
return result.raw();
|
|
}
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(LibraryMirror_invoke, 5) {
|
|
// Argument 0 is the mirror, which is unused by the native. It exists
|
|
// because this native is an instance method in order to be polymorphic
|
|
// with its cousins.
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(1));
|
|
const Library& library = Library::Handle(ref.GetLibraryReferent());
|
|
GET_NON_NULL_NATIVE_ARGUMENT(
|
|
String, function_name, arguments->NativeArgAt(2));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Array, args, arguments->NativeArgAt(3));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Array, arg_names, arguments->NativeArgAt(4));
|
|
|
|
const Array& args_descriptor_array =
|
|
Array::Handle(ArgumentsDescriptor::New(args.Length(), arg_names));
|
|
|
|
const Function& function = Function::Handle(
|
|
library.LookupLocalFunction(function_name));
|
|
|
|
ArgumentsDescriptor args_descriptor(args_descriptor_array);
|
|
if (function.IsNull() ||
|
|
!function.AreValidArguments(args_descriptor, NULL) ||
|
|
!function.is_visible()) {
|
|
ThrowNoSuchMethod(Instance::null_instance(),
|
|
function_name,
|
|
function,
|
|
InvocationMirror::kTopLevel,
|
|
InvocationMirror::kMethod);
|
|
UNREACHABLE();
|
|
}
|
|
|
|
const Object& result = Object::Handle(
|
|
DartEntry::InvokeFunction(function, args, args_descriptor_array));
|
|
if (result.IsError()) {
|
|
ThrowInvokeError(Error::Cast(result));
|
|
UNREACHABLE();
|
|
}
|
|
return result.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(LibraryMirror_invokeGetter, 3) {
|
|
// Argument 0 is the mirror, which is unused by the native. It exists
|
|
// because this native is an instance method in order to be polymorphic
|
|
// with its cousins.
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(1));
|
|
const Library& library = Library::Handle(ref.GetLibraryReferent());
|
|
GET_NON_NULL_NATIVE_ARGUMENT(String, getter_name, arguments->NativeArgAt(2));
|
|
return InvokeLibraryGetter(library, getter_name, true);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(LibraryMirror_invokeSetter, 4) {
|
|
// Argument 0 is the mirror, which is unused by the native. It exists
|
|
// because this native is an instance method in order to be polymorphic
|
|
// with its cousins.
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(1));
|
|
const Library& library = Library::Handle(ref.GetLibraryReferent());
|
|
GET_NON_NULL_NATIVE_ARGUMENT(String, setter_name, arguments->NativeArgAt(2));
|
|
GET_NATIVE_ARGUMENT(Instance, value, arguments->NativeArgAt(3));
|
|
|
|
// To access a top-level we may need to use the Field or the
|
|
// setter Function. The setter function may either be in the
|
|
// library or in the field's owner class, depending.
|
|
const Field& field = Field::Handle(
|
|
library.LookupLocalField(setter_name));
|
|
Function& setter = Function::Handle();
|
|
|
|
if (field.IsNull()) {
|
|
const String& internal_setter_name =
|
|
String::Handle(Field::SetterName(setter_name));
|
|
|
|
setter = library.LookupLocalFunction(internal_setter_name);
|
|
if (setter.IsNull() || !setter.is_visible()) {
|
|
ThrowNoSuchMethod(Instance::null_instance(),
|
|
setter_name,
|
|
setter,
|
|
InvocationMirror::kTopLevel,
|
|
InvocationMirror::kSetter);
|
|
UNREACHABLE();
|
|
}
|
|
|
|
// Invoke the setter and return the result.
|
|
const int kNumArgs = 1;
|
|
const Array& args = Array::Handle(Array::New(kNumArgs));
|
|
args.SetAt(0, value);
|
|
const Object& result = Object::Handle(
|
|
DartEntry::InvokeFunction(setter, args));
|
|
if (result.IsError()) {
|
|
ThrowInvokeError(Error::Cast(result));
|
|
UNREACHABLE();
|
|
}
|
|
return result.raw();
|
|
}
|
|
|
|
if (field.is_final()) {
|
|
ThrowNoSuchMethod(Instance::null_instance(),
|
|
setter_name,
|
|
setter,
|
|
InvocationMirror::kTopLevel,
|
|
InvocationMirror::kSetter);
|
|
UNREACHABLE();
|
|
}
|
|
|
|
field.set_value(value);
|
|
return value.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(MethodMirror_owner, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(0));
|
|
const Function& func = Function::Handle(ref.GetFunctionReferent());
|
|
if (func.IsNonImplicitClosureFunction()) {
|
|
return CreateMethodMirror(Function::Handle(
|
|
func.parent_function()), Object::null_instance());
|
|
}
|
|
const Class& owner = Class::Handle(func.Owner());
|
|
if (owner.IsTopLevel()) {
|
|
return CreateLibraryMirror(Library::Handle(owner.library()));
|
|
}
|
|
|
|
AbstractType& type = AbstractType::Handle(owner.DeclarationType());
|
|
return CreateClassMirror(owner, type, Bool::True(), Object::null_instance());
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(MethodMirror_parameters, 2) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Instance, owner, arguments->NativeArgAt(0));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(1));
|
|
const Function& func = Function::Handle(ref.GetFunctionReferent());
|
|
return CreateParameterMirrorList(func, owner);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(MethodMirror_return_type, 2) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(0));
|
|
const Function& func = Function::Handle(ref.GetFunctionReferent());
|
|
GET_NATIVE_ARGUMENT(AbstractType, instantiator, arguments->NativeArgAt(1));
|
|
// We handle constructors in Dart code.
|
|
ASSERT(!func.IsConstructor());
|
|
const AbstractType& type = AbstractType::Handle(func.result_type());
|
|
return InstantiateType(type, instantiator);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(MethodMirror_source, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(0));
|
|
const Function& func = Function::Handle(ref.GetFunctionReferent());
|
|
const Script& script = Script::Handle(func.script());
|
|
const TokenStream& stream = TokenStream::Handle(script.tokens());
|
|
const TokenStream::Iterator tkit(stream, func.end_token_pos());
|
|
intptr_t from_line;
|
|
intptr_t from_col;
|
|
intptr_t to_line;
|
|
intptr_t to_col;
|
|
script.GetTokenLocation(func.token_pos(), &from_line, &from_col);
|
|
script.GetTokenLocation(func.end_token_pos(), &to_line, &to_col);
|
|
intptr_t last_tok_len = String::Handle(tkit.CurrentLiteral()).Length();
|
|
// Handle special cases for end tokens of closures (where we exclude the last
|
|
// token):
|
|
// (1) "foo(() => null, bar);": End token is `,', but we don't print it.
|
|
// (2) "foo(() => null);": End token is ')`, but we don't print it.
|
|
// (3) "var foo = () => null;": End token is `;', but in this case the token
|
|
// semicolon belongs to the assignment so we skip it.
|
|
if ((tkit.CurrentTokenKind() == Token::kCOMMA) || // Case 1.
|
|
(tkit.CurrentTokenKind() == Token::kRPAREN) || // Case 2.
|
|
(tkit.CurrentTokenKind() == Token::kSEMICOLON &&
|
|
String::Handle(func.name()).Equals("<anonymous closure>"))) { // Case 3.
|
|
last_tok_len = 0;
|
|
}
|
|
return script.GetSnippet(from_line, from_col, to_line, to_col + last_tok_len);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(TypedefMirror_referent, 1) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Type, type, arguments->NativeArgAt(0));
|
|
const Class& cls = Class::Handle(type.type_class());
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const Function& sig_func = Function::Handle(cls.signature_function());
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const Class& sig_cls = Class::Handle(sig_func.signature_class());
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|
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AbstractType& referent_type = AbstractType::Handle(sig_cls.DeclarationType());
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referent_type = InstantiateType(referent_type, type);
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return CreateFunctionTypeMirror(sig_cls, referent_type);
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}
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|
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DEFINE_NATIVE_ENTRY(ParameterMirror_type, 3) {
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GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(0));
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GET_NON_NULL_NATIVE_ARGUMENT(Smi, pos, arguments->NativeArgAt(1));
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GET_NATIVE_ARGUMENT(AbstractType, instantiator, arguments->NativeArgAt(2));
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|
const Function& func = Function::Handle(ref.GetFunctionReferent());
|
|
const AbstractType& type = AbstractType::Handle(
|
|
func.ParameterTypeAt(func.NumImplicitParameters() + pos.Value()));
|
|
return InstantiateType(type, instantiator);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(VariableMirror_type, 2) {
|
|
GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(0));
|
|
const Field& field = Field::Handle(ref.GetFieldReferent());
|
|
GET_NATIVE_ARGUMENT(AbstractType, instantiator, arguments->NativeArgAt(1));
|
|
const AbstractType& type = AbstractType::Handle(field.type());
|
|
return InstantiateType(type, instantiator);
|
|
}
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} // namespace dart
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