mirror of
https://github.com/dart-lang/sdk
synced 2024-10-05 05:17:31 +00:00
ecdf148428
Generating identity hashes from the runtime no longer calls into Dart. On 32-bit systems, generating identity hashes from Dart now does only one runtime transition. TEST=ci Bug: https://github.com/dart-lang/sdk/issues/47873 Change-Id: Ib21156cb05706f81744eb4e5ccb644f40aa84c96 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/222326 Reviewed-by: Alexander Markov <alexmarkov@google.com>
800 lines
30 KiB
C++
800 lines
30 KiB
C++
// Copyright (c) 2011, 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 "vm/dart_entry.h"
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#include "platform/safe_stack.h"
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#include "vm/class_finalizer.h"
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#include "vm/debugger.h"
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#include "vm/dispatch_table.h"
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#include "vm/heap/safepoint.h"
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#include "vm/object_store.h"
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#include "vm/resolver.h"
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#include "vm/runtime_entry.h"
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#include "vm/simulator.h"
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#include "vm/stub_code.h"
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#include "vm/symbols.h"
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#include "vm/zone_text_buffer.h"
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#if !defined(DART_PRECOMPILED_RUNTIME)
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#include "vm/compiler/jit/compiler.h"
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#endif // !defined(DART_PRECOMPILED_RUNTIME)
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namespace dart {
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DECLARE_FLAG(bool, precompiled_mode);
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// A cache of VM heap allocated arguments descriptors.
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ArrayPtr ArgumentsDescriptor::cached_args_descriptors_[kCachedDescriptorCount];
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ObjectPtr DartEntry::InvokeFunction(const Function& function,
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const Array& arguments) {
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ASSERT(Thread::Current()->IsMutatorThread());
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const int kTypeArgsLen = 0; // No support to pass type args to generic func.
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const Array& arguments_descriptor = Array::Handle(
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ArgumentsDescriptor::NewBoxed(kTypeArgsLen, arguments.Length()));
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return InvokeFunction(function, arguments, arguments_descriptor);
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}
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class ScopedIsolateStackLimits : public ValueObject {
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public:
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NO_SANITIZE_SAFE_STACK
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explicit ScopedIsolateStackLimits(Thread* thread, uword current_sp)
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: thread_(thread) {
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ASSERT(thread != NULL);
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// Save the Thread's current stack limit and adjust the stack limit.
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ASSERT(thread->isolate() == Isolate::Current());
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saved_stack_limit_ = thread->saved_stack_limit();
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#if defined(USING_SIMULATOR)
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thread->SetStackLimit(Simulator::Current()->overflow_stack_limit());
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#else
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thread->SetStackLimit(OSThread::Current()->overflow_stack_limit());
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#endif
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#if defined(USING_SAFE_STACK)
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saved_safestack_limit_ = OSThread::GetCurrentSafestackPointer();
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thread->set_saved_safestack_limit(saved_safestack_limit_);
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#endif
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}
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~ScopedIsolateStackLimits() {
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ASSERT(thread_->isolate() == Isolate::Current());
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// Since we started with a stack limit of 0 we should be getting back
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// to a stack limit of 0 when all nested invocations are done and
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// we have bottomed out.
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thread_->SetStackLimit(saved_stack_limit_);
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#if defined(USING_SAFE_STACK)
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thread_->set_saved_safestack_limit(saved_safestack_limit_);
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#endif
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}
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private:
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Thread* thread_;
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#if defined(USING_SAFE_STACK)
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uword saved_safestack_limit_ = 0;
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#endif
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uword saved_stack_limit_ = 0;
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};
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// Clears/restores Thread::long_jump_base on construction/destruction.
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// Ensures that we do not attempt to long jump across Dart frames.
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class SuspendLongJumpScope : public ThreadStackResource {
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public:
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explicit SuspendLongJumpScope(Thread* thread)
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: ThreadStackResource(thread),
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saved_long_jump_base_(thread->long_jump_base()) {
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thread->set_long_jump_base(NULL);
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}
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~SuspendLongJumpScope() {
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ASSERT(thread()->long_jump_base() == NULL);
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thread()->set_long_jump_base(saved_long_jump_base_);
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}
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private:
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LongJumpScope* saved_long_jump_base_;
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};
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ObjectPtr DartEntry::InvokeFunction(const Function& function,
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const Array& arguments,
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const Array& arguments_descriptor,
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uword current_sp) {
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// We use a kernel2kernel constant evaluator in Dart 2.0 AOT compilation
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// and never start the VM service isolate. So we should never end up invoking
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// any dart code in the Dart 2.0 AOT compiler.
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if (FLAG_precompiled_mode) {
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#if !defined(DART_PRECOMPILED_RUNTIME)
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UNREACHABLE();
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#else
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Thread* thread = Thread::Current();
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thread->set_global_object_pool(
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thread->isolate_group()->object_store()->global_object_pool());
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const DispatchTable* dispatch_table = thread->isolate()->dispatch_table();
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if (dispatch_table != nullptr) {
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thread->set_dispatch_table_array(dispatch_table->ArrayOrigin());
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}
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ASSERT(thread->global_object_pool() != Object::null());
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#endif // !defined(DART_PRECOMPILED_RUNTIME)
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}
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ASSERT(!function.IsNull());
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// Get the entrypoint corresponding to the function specified, this
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// will result in a compilation of the function if it is not already
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// compiled.
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Thread* thread = Thread::Current();
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Zone* zone = thread->zone();
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ASSERT(thread->IsMutatorThread());
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ScopedIsolateStackLimits stack_limit(thread, current_sp);
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#if !defined(DART_PRECOMPILED_RUNTIME)
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if (!function.HasCode()) {
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const Object& result =
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Object::Handle(zone, Compiler::CompileFunction(thread, function));
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if (result.IsError()) {
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return Error::Cast(result).ptr();
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}
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// At this point we should have native code.
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ASSERT(function.HasCode());
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}
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#endif // !defined(DART_PRECOMPILED_RUNTIME)
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// Now Call the invoke stub which will invoke the dart function.
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const Code& code = Code::Handle(zone, function.CurrentCode());
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return InvokeCode(code, function.entry_point(), arguments_descriptor,
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arguments, thread);
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}
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extern "C" {
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// Note: The invocation stub follows the C ABI, so we cannot pass C++ struct
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// values like ObjectPtr. In some calling conventions (IA32), ObjectPtr is
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// passed/returned different from a pointer.
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typedef uword /*ObjectPtr*/ (*invokestub)(const Code& target_code,
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const Array& arguments_descriptor,
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const Array& arguments,
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Thread* thread);
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typedef uword /*ObjectPtr*/ (*invokestub_bare_instructions)(
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uword entry_point,
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const Array& arguments_descriptor,
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const Array& arguments,
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Thread* thread);
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}
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NO_SANITIZE_SAFE_STACK
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ObjectPtr DartEntry::InvokeCode(const Code& code,
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uword entry_point,
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const Array& arguments_descriptor,
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const Array& arguments,
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Thread* thread) {
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ASSERT(!code.IsNull());
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ASSERT(thread->no_callback_scope_depth() == 0);
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ASSERT(!IsolateGroup::Current()->null_safety_not_set());
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const uword stub = StubCode::InvokeDartCode().EntryPoint();
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SuspendLongJumpScope suspend_long_jump_scope(thread);
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TransitionToGenerated transition(thread);
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#if defined(USING_SIMULATOR)
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return bit_copy<ObjectPtr, int64_t>(Simulator::Current()->Call(
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static_cast<intptr_t>(stub),
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FLAG_precompiled_mode ? static_cast<intptr_t>(entry_point)
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: reinterpret_cast<intptr_t>(&code),
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reinterpret_cast<intptr_t>(&arguments_descriptor),
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reinterpret_cast<intptr_t>(&arguments),
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reinterpret_cast<intptr_t>(thread)));
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#else
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if (FLAG_precompiled_mode) {
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return static_cast<ObjectPtr>(
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(reinterpret_cast<invokestub_bare_instructions>(stub))(
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entry_point, arguments_descriptor, arguments, thread));
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} else {
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return static_cast<ObjectPtr>((reinterpret_cast<invokestub>(stub))(
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code, arguments_descriptor, arguments, thread));
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}
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#endif
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}
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ObjectPtr DartEntry::ResolveCallable(Thread* thread,
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const Array& arguments,
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const Array& arguments_descriptor) {
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auto isolate_group = thread->isolate_group();
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auto zone = thread->zone();
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const ArgumentsDescriptor args_desc(arguments_descriptor);
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const intptr_t receiver_index = args_desc.FirstArgIndex();
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const intptr_t type_args_len = args_desc.TypeArgsLen();
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const auto& getter_name = Symbols::GetCall();
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auto& instance = Instance::Handle(zone);
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auto& function = Function::Handle(zone);
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auto& cls = Class::Handle(zone);
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// The null instance cannot resolve to a callable, so we can stop there.
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for (instance ^= arguments.At(receiver_index); !instance.IsNull();
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instance ^= arguments.At(receiver_index)) {
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// The instance is a callable, so check that its function is compatible.
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if (instance.IsCallable(&function)) {
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bool matches = function.AreValidArguments(args_desc, nullptr);
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if (matches && type_args_len > 0 && function.IsClosureFunction()) {
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// Though the closure function is generic, the closure itself may
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// not be because it closes over delayed function type arguments.
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matches = Closure::Cast(instance).IsGeneric();
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}
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if (matches) {
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return function.ptr();
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}
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}
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// Special case: closures are implemented with a call getter instead of a
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// call method, so checking for a call getter would cause an infinite loop.
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if (instance.IsClosure()) {
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break;
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}
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cls = instance.clazz();
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// Find a call getter, if any, in the class hierarchy.
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function = Resolver::ResolveDynamicAnyArgs(zone, cls, getter_name,
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/*allow_add=*/false);
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if (function.IsNull()) {
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break;
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}
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if (!OSThread::Current()->HasStackHeadroom()) {
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const Instance& exception = Instance::Handle(
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zone, isolate_group->object_store()->stack_overflow());
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return UnhandledException::New(exception, StackTrace::Handle(zone));
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}
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const Array& getter_arguments = Array::Handle(zone, Array::New(1));
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getter_arguments.SetAt(0, instance);
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const Object& getter_result = Object::Handle(
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zone, DartEntry::InvokeFunction(function, getter_arguments));
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if (getter_result.IsError()) {
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return getter_result.ptr();
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}
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ASSERT(getter_result.IsNull() || getter_result.IsInstance());
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// We have a new possibly compatible callable, so set the first argument
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// accordingly so it gets picked up in the main loop.
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arguments.SetAt(receiver_index, getter_result);
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}
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// No compatible callable was found.
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return Function::null();
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}
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ObjectPtr DartEntry::InvokeCallable(Thread* thread,
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const Function& callable_function,
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const Array& arguments,
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const Array& arguments_descriptor) {
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auto const zone = thread->zone();
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const ArgumentsDescriptor args_desc(arguments_descriptor);
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if (callable_function.IsNull()) {
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// No compatible callable was found, so invoke noSuchMethod.
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auto& instance =
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Instance::CheckedHandle(zone, arguments.At(args_desc.FirstArgIndex()));
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// For closures, use the name of the closure, not 'call'.
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const String* target_name = &Symbols::Call();
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if (instance.IsClosure()) {
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auto const& function =
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Function::Handle(zone, Closure::Cast(instance).function());
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target_name = &String::Handle(function.QualifiedUserVisibleName());
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}
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return InvokeNoSuchMethod(thread, instance, *target_name, arguments,
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arguments_descriptor);
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}
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const auto& result = Object::Handle(
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zone, callable_function.DoArgumentTypesMatch(arguments, args_desc));
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if (result.IsError()) {
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return result.ptr();
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}
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return InvokeFunction(callable_function, arguments, arguments_descriptor);
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}
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ObjectPtr DartEntry::InvokeClosure(Thread* thread, const Array& arguments) {
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auto const zone = thread->zone();
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const int kTypeArgsLen = 0; // No support to pass type args to generic func.
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// Closures always have boxed parameters
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const Array& arguments_descriptor = Array::Handle(
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zone, ArgumentsDescriptor::NewBoxed(kTypeArgsLen, arguments.Length()));
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return InvokeClosure(thread, arguments, arguments_descriptor);
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}
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ObjectPtr DartEntry::InvokeClosure(Thread* thread,
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const Array& arguments,
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const Array& arguments_descriptor) {
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auto const zone = thread->zone();
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const Object& resolved_result = Object::Handle(
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zone, ResolveCallable(thread, arguments, arguments_descriptor));
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if (resolved_result.IsError()) {
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return resolved_result.ptr();
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}
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const auto& function =
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Function::Handle(zone, Function::RawCast(resolved_result.ptr()));
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return InvokeCallable(thread, function, arguments, arguments_descriptor);
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}
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ObjectPtr DartEntry::InvokeNoSuchMethod(Thread* thread,
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const Instance& receiver,
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const String& target_name,
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const Array& arguments,
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const Array& arguments_descriptor) {
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auto const zone = thread->zone();
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const ArgumentsDescriptor args_desc(arguments_descriptor);
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ASSERT(
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CompressedInstancePtr(receiver.ptr()).Decompress(thread->heap_base()) ==
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arguments.At(args_desc.FirstArgIndex()));
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// Allocate an Invocation object.
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const Library& core_lib = Library::Handle(zone, Library::CoreLibrary());
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Class& invocation_mirror_class = Class::Handle(
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zone, core_lib.LookupClass(String::Handle(
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zone, core_lib.PrivateName(Symbols::InvocationMirror()))));
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ASSERT(!invocation_mirror_class.IsNull());
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const auto& error = invocation_mirror_class.EnsureIsFinalized(thread);
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ASSERT(error == Error::null());
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const String& function_name = String::Handle(
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zone, core_lib.PrivateName(Symbols::AllocateInvocationMirror()));
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const Function& allocation_function = Function::Handle(
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zone, invocation_mirror_class.LookupStaticFunction(function_name));
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ASSERT(!allocation_function.IsNull());
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const int kNumAllocationArgs = 4;
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const Array& allocation_args =
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Array::Handle(zone, Array::New(kNumAllocationArgs));
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allocation_args.SetAt(0, target_name);
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allocation_args.SetAt(1, arguments_descriptor);
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allocation_args.SetAt(2, arguments);
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allocation_args.SetAt(3, Bool::False()); // Not a super invocation.
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const Object& invocation_mirror = Object::Handle(
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zone, InvokeFunction(allocation_function, allocation_args));
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if (invocation_mirror.IsError()) {
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Exceptions::PropagateError(Error::Cast(invocation_mirror));
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UNREACHABLE();
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}
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// Now use the invocation mirror object and invoke NoSuchMethod.
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const int kNumArguments = 2;
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const Function& function = Function::Handle(
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zone,
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core_lib.LookupFunctionAllowPrivate(Symbols::_objectNoSuchMethod()));
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ASSERT(!function.IsNull());
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const Array& args = Array::Handle(zone, Array::New(kNumArguments));
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args.SetAt(0, receiver);
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args.SetAt(1, invocation_mirror);
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return InvokeFunction(function, args);
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}
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ArgumentsDescriptor::ArgumentsDescriptor(const Array& array) : array_(array) {}
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intptr_t ArgumentsDescriptor::TypeArgsLen() const {
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return Smi::Value(Smi::RawCast(array_.At(kTypeArgsLenIndex)));
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}
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intptr_t ArgumentsDescriptor::Count() const {
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return Smi::Value(Smi::RawCast(array_.At(kCountIndex)));
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}
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intptr_t ArgumentsDescriptor::Size() const {
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return Smi::Value(Smi::RawCast(array_.At(kSizeIndex)));
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}
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intptr_t ArgumentsDescriptor::PositionalCount() const {
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return Smi::Value(Smi::RawCast(array_.At(kPositionalCountIndex)));
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}
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StringPtr ArgumentsDescriptor::NameAt(intptr_t index) const {
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const intptr_t offset =
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kFirstNamedEntryIndex + (index * kNamedEntrySize) + kNameOffset;
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String& result = String::Handle();
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result ^= array_.At(offset);
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return result.ptr();
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}
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intptr_t ArgumentsDescriptor::PositionAt(intptr_t index) const {
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const intptr_t offset =
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kFirstNamedEntryIndex + (index * kNamedEntrySize) + kPositionOffset;
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return Smi::Value(Smi::RawCast(array_.At(offset)));
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}
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bool ArgumentsDescriptor::MatchesNameAt(intptr_t index,
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const String& other) const {
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return NameAt(index) == other.ptr();
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}
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ArrayPtr ArgumentsDescriptor::GetArgumentNames() const {
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const intptr_t num_named_args = NamedCount();
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if (num_named_args == 0) {
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return Array::null();
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}
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Zone* zone = Thread::Current()->zone();
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const Array& names =
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Array::Handle(zone, Array::New(num_named_args, Heap::kOld));
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String& name = String::Handle(zone);
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const intptr_t num_pos_args = PositionalCount();
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for (intptr_t i = 0; i < num_named_args; ++i) {
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const intptr_t index = PositionAt(i) - num_pos_args;
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name = NameAt(i);
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ASSERT(names.At(index) == Object::null());
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names.SetAt(index, name);
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}
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return names.ptr();
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}
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void ArgumentsDescriptor::PrintTo(BaseTextBuffer* buffer,
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bool show_named_positions) const {
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if (TypeArgsLen() > 0) {
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buffer->Printf("<%" Pd ">", TypeArgsLen());
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}
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buffer->Printf("(%" Pd "", Count());
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if (NamedCount() > 0) {
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buffer->AddString(" {");
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auto& str = String::Handle();
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for (intptr_t i = 0; i < NamedCount(); i++) {
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if (i != 0) {
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buffer->AddString(", ");
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}
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str = NameAt(i);
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buffer->Printf("%s", str.ToCString());
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if (show_named_positions) {
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buffer->Printf(" (%" Pd ")", PositionAt(i));
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}
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}
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buffer->Printf("}");
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}
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buffer->Printf(")");
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}
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const char* ArgumentsDescriptor::ToCString() const {
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ZoneTextBuffer buf(Thread::Current()->zone());
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PrintTo(&buf);
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return buf.buffer();
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}
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ArrayPtr ArgumentsDescriptor::New(intptr_t type_args_len,
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intptr_t num_arguments,
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intptr_t size_arguments,
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const Array& optional_arguments_names,
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Heap::Space space) {
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const intptr_t num_named_args =
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optional_arguments_names.IsNull() ? 0 : optional_arguments_names.Length();
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if (num_named_args == 0) {
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return ArgumentsDescriptor::New(type_args_len, num_arguments,
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size_arguments, space);
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}
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ASSERT(type_args_len >= 0);
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ASSERT(num_arguments >= 0);
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const intptr_t num_pos_args = num_arguments - num_named_args;
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|
|
// Build the arguments descriptor array, which consists of the type
|
|
// argument vector length (0 if none); total argument count; the positional
|
|
// argument count; a sequence of (name, position) pairs, sorted by name, for
|
|
// each named optional argument; and a terminating null to simplify iterating
|
|
// in generated code.
|
|
Thread* thread = Thread::Current();
|
|
Zone* zone = thread->zone();
|
|
const intptr_t descriptor_len = LengthFor(num_named_args);
|
|
Array& descriptor = Array::Handle(zone, Array::New(descriptor_len, space));
|
|
|
|
// Set length of type argument vector.
|
|
descriptor.SetAt(kTypeArgsLenIndex, Smi::Handle(Smi::New(type_args_len)));
|
|
// Set total number of passed arguments.
|
|
descriptor.SetAt(kCountIndex, Smi::Handle(Smi::New(num_arguments)));
|
|
// Set total number of passed arguments.
|
|
descriptor.SetAt(kSizeIndex, Smi::Handle(Smi::New(size_arguments)));
|
|
|
|
// Set number of positional arguments.
|
|
descriptor.SetAt(kPositionalCountIndex, Smi::Handle(Smi::New(num_pos_args)));
|
|
|
|
// Set alphabetically sorted entries for named arguments.
|
|
String& name = String::Handle(zone);
|
|
Smi& pos = Smi::Handle(zone);
|
|
String& previous_name = String::Handle(zone);
|
|
Smi& previous_pos = Smi::Handle(zone);
|
|
for (intptr_t i = 0; i < num_named_args; i++) {
|
|
name ^= optional_arguments_names.At(i);
|
|
pos = Smi::New(num_pos_args + i);
|
|
intptr_t insert_index = kFirstNamedEntryIndex + (kNamedEntrySize * i);
|
|
// Shift already inserted pairs with "larger" names.
|
|
while (insert_index > kFirstNamedEntryIndex) {
|
|
intptr_t previous_index = insert_index - kNamedEntrySize;
|
|
previous_name ^= descriptor.At(previous_index + kNameOffset);
|
|
intptr_t result = name.CompareTo(previous_name);
|
|
ASSERT(result != 0); // Duplicate argument names checked in parser.
|
|
if (result > 0) break;
|
|
previous_pos ^= descriptor.At(previous_index + kPositionOffset);
|
|
descriptor.SetAt(insert_index + kNameOffset, previous_name);
|
|
descriptor.SetAt(insert_index + kPositionOffset, previous_pos);
|
|
insert_index = previous_index;
|
|
}
|
|
// Insert pair in descriptor array.
|
|
descriptor.SetAt(insert_index + kNameOffset, name);
|
|
descriptor.SetAt(insert_index + kPositionOffset, pos);
|
|
}
|
|
// Set terminating null.
|
|
descriptor.SetAt(descriptor_len - 1, Object::null_object());
|
|
|
|
// Share the immutable descriptor when possible by canonicalizing it.
|
|
descriptor.MakeImmutable();
|
|
descriptor ^= descriptor.Canonicalize(thread);
|
|
ASSERT(!descriptor.IsNull());
|
|
return descriptor.ptr();
|
|
}
|
|
|
|
ArrayPtr ArgumentsDescriptor::New(intptr_t type_args_len,
|
|
intptr_t num_arguments,
|
|
intptr_t size_arguments,
|
|
Heap::Space space) {
|
|
ASSERT(type_args_len >= 0);
|
|
ASSERT(num_arguments >= 0);
|
|
|
|
if ((type_args_len == 0) && (num_arguments < kCachedDescriptorCount) &&
|
|
(num_arguments == size_arguments)) {
|
|
return cached_args_descriptors_[num_arguments];
|
|
}
|
|
return NewNonCached(type_args_len, num_arguments, size_arguments, true,
|
|
space);
|
|
}
|
|
|
|
ArrayPtr ArgumentsDescriptor::NewNonCached(intptr_t type_args_len,
|
|
intptr_t num_arguments,
|
|
intptr_t size_arguments,
|
|
bool canonicalize,
|
|
Heap::Space space) {
|
|
// Build the arguments descriptor array, which consists of the length of the
|
|
// type argument vector, total argument count; the positional argument count;
|
|
// and a terminating null to simplify iterating in generated code.
|
|
Thread* thread = Thread::Current();
|
|
Zone* zone = thread->zone();
|
|
const intptr_t descriptor_len = LengthFor(0);
|
|
Array& descriptor = Array::Handle(zone, Array::New(descriptor_len, space));
|
|
const Smi& arg_count = Smi::Handle(zone, Smi::New(num_arguments));
|
|
const Smi& arg_size = Smi::Handle(zone, Smi::New(size_arguments));
|
|
|
|
// Set type argument vector length.
|
|
descriptor.SetAt(kTypeArgsLenIndex,
|
|
Smi::Handle(zone, Smi::New(type_args_len)));
|
|
|
|
// Set total number of passed arguments.
|
|
descriptor.SetAt(kCountIndex, arg_count);
|
|
|
|
// Set total size of passed arguments.
|
|
descriptor.SetAt(kSizeIndex, arg_size);
|
|
|
|
// Set number of positional arguments.
|
|
descriptor.SetAt(kPositionalCountIndex, arg_count);
|
|
|
|
// Set terminating null.
|
|
descriptor.SetAt((descriptor_len - 1), Object::null_object());
|
|
|
|
// Share the immutable descriptor when possible by canonicalizing it.
|
|
descriptor.MakeImmutable();
|
|
if (canonicalize) {
|
|
descriptor ^= descriptor.Canonicalize(thread);
|
|
}
|
|
ASSERT(!descriptor.IsNull());
|
|
return descriptor.ptr();
|
|
}
|
|
|
|
void ArgumentsDescriptor::Init() {
|
|
for (int i = 0; i < kCachedDescriptorCount; i++) {
|
|
cached_args_descriptors_[i] =
|
|
NewNonCached(/*type_args_len=*/0, i, i, false, Heap::kOld);
|
|
}
|
|
}
|
|
|
|
void ArgumentsDescriptor::Cleanup() {
|
|
for (int i = 0; i < kCachedDescriptorCount; i++) {
|
|
// Don't free pointers to RawArray objects managed by the VM.
|
|
cached_args_descriptors_[i] = NULL;
|
|
}
|
|
}
|
|
|
|
ObjectPtr DartLibraryCalls::InstanceCreate(const Library& lib,
|
|
const String& class_name,
|
|
const String& constructor_name,
|
|
const Array& arguments) {
|
|
const Class& cls = Class::Handle(lib.LookupClassAllowPrivate(class_name));
|
|
ASSERT(!cls.IsNull());
|
|
// For now, we only support a non-parameterized or raw type.
|
|
const int kNumExtraArgs = 1; // implicit rcvr arg.
|
|
const Instance& exception_object = Instance::Handle(Instance::New(cls));
|
|
const Array& constructor_arguments =
|
|
Array::Handle(Array::New(arguments.Length() + kNumExtraArgs));
|
|
constructor_arguments.SetAt(0, exception_object);
|
|
Object& obj = Object::Handle();
|
|
for (intptr_t i = 0; i < arguments.Length(); i++) {
|
|
obj = arguments.At(i);
|
|
constructor_arguments.SetAt((i + kNumExtraArgs), obj);
|
|
}
|
|
|
|
const String& function_name =
|
|
String::Handle(String::Concat(class_name, constructor_name));
|
|
const Function& constructor =
|
|
Function::Handle(cls.LookupConstructorAllowPrivate(function_name));
|
|
ASSERT(!constructor.IsNull());
|
|
const Object& retval = Object::Handle(
|
|
DartEntry::InvokeFunction(constructor, constructor_arguments));
|
|
ASSERT(retval.IsNull() || retval.IsError());
|
|
if (retval.IsError()) {
|
|
return retval.ptr();
|
|
}
|
|
return exception_object.ptr();
|
|
}
|
|
|
|
ObjectPtr DartLibraryCalls::ToString(const Instance& receiver) {
|
|
Thread* thread = Thread::Current();
|
|
Zone* zone = thread->zone();
|
|
const auto& function = Function::Handle(
|
|
zone,
|
|
thread->isolate_group()->object_store()->_object_to_string_function());
|
|
ASSERT(!function.IsNull());
|
|
const int kNumArguments = 1;
|
|
const Array& args = Array::Handle(zone, Array::New(kNumArguments));
|
|
args.SetAt(0, receiver);
|
|
const Object& result =
|
|
Object::Handle(zone, DartEntry::InvokeFunction(function, args));
|
|
ASSERT(result.IsInstance() || result.IsError());
|
|
return result.ptr();
|
|
}
|
|
|
|
ObjectPtr DartLibraryCalls::HashCode(const Instance& receiver) {
|
|
Thread* thread = Thread::Current();
|
|
Zone* zone = thread->zone();
|
|
const auto& function = Function::Handle(
|
|
zone,
|
|
thread->isolate_group()->object_store()->_object_hash_code_function());
|
|
ASSERT(!function.IsNull());
|
|
const int kNumArguments = 1;
|
|
const Array& args = Array::Handle(zone, Array::New(kNumArguments));
|
|
args.SetAt(0, receiver);
|
|
const Object& result =
|
|
Object::Handle(zone, DartEntry::InvokeFunction(function, args));
|
|
ASSERT(result.IsInstance() || result.IsError());
|
|
return result.ptr();
|
|
}
|
|
|
|
ObjectPtr DartLibraryCalls::Equals(const Instance& left,
|
|
const Instance& right) {
|
|
Thread* thread = Thread::Current();
|
|
Zone* zone = thread->zone();
|
|
const auto& function = Function::Handle(
|
|
zone, thread->isolate_group()->object_store()->_object_equals_function());
|
|
ASSERT(!function.IsNull());
|
|
const int kNumArguments = 2;
|
|
const Array& args = Array::Handle(zone, Array::New(kNumArguments));
|
|
args.SetAt(0, left);
|
|
args.SetAt(1, right);
|
|
const Object& result =
|
|
Object::Handle(zone, DartEntry::InvokeFunction(function, args));
|
|
ASSERT(result.IsInstance() || result.IsError());
|
|
return result.ptr();
|
|
}
|
|
|
|
ObjectPtr DartLibraryCalls::LookupHandler(Dart_Port port_id) {
|
|
Thread* thread = Thread::Current();
|
|
Zone* zone = thread->zone();
|
|
const auto& function = Function::Handle(
|
|
zone, thread->isolate_group()->object_store()->lookup_port_handler());
|
|
const int kNumArguments = 1;
|
|
ASSERT(!function.IsNull());
|
|
Array& args = Array::Handle(
|
|
zone, thread->isolate()->isolate_object_store()->dart_args_1());
|
|
if (args.IsNull()) {
|
|
args = Array::New(kNumArguments);
|
|
thread->isolate()->isolate_object_store()->set_dart_args_1(args);
|
|
}
|
|
args.SetAt(0, Integer::Handle(zone, Integer::New(port_id)));
|
|
const Object& result =
|
|
Object::Handle(zone, DartEntry::InvokeFunction(function, args));
|
|
return result.ptr();
|
|
}
|
|
|
|
ObjectPtr DartLibraryCalls::LookupOpenPorts() {
|
|
Thread* thread = Thread::Current();
|
|
Zone* zone = thread->zone();
|
|
Function& function = Function::Handle(
|
|
zone, thread->isolate_group()->object_store()->lookup_open_ports());
|
|
ASSERT(!function.IsNull());
|
|
const Object& result = Object::Handle(
|
|
zone, DartEntry::InvokeFunction(function, Object::empty_array()));
|
|
return result.ptr();
|
|
}
|
|
|
|
ObjectPtr DartLibraryCalls::HandleMessage(Dart_Port port_id,
|
|
const Instance& message) {
|
|
auto thread = Thread::Current();
|
|
auto zone = thread->zone();
|
|
auto isolate = thread->isolate();
|
|
auto object_store = thread->isolate_group()->object_store();
|
|
const auto& function =
|
|
Function::Handle(zone, object_store->handle_message_function());
|
|
const int kNumArguments = 2;
|
|
ASSERT(!function.IsNull());
|
|
Array& args =
|
|
Array::Handle(zone, isolate->isolate_object_store()->dart_args_2());
|
|
if (args.IsNull()) {
|
|
args = Array::New(kNumArguments);
|
|
isolate->isolate_object_store()->set_dart_args_2(args);
|
|
}
|
|
args.SetAt(0, Integer::Handle(zone, Integer::New(port_id)));
|
|
args.SetAt(1, message);
|
|
#if !defined(PRODUCT)
|
|
if (isolate->debugger()->IsStepping()) {
|
|
// If the isolate is being debugged and the debugger was stepping
|
|
// through code, enable single stepping so debugger will stop
|
|
// at the first location the user is interested in.
|
|
isolate->debugger()->SetResumeAction(Debugger::kStepInto);
|
|
}
|
|
#endif
|
|
const Object& handler =
|
|
Object::Handle(zone, DartEntry::InvokeFunction(function, args));
|
|
return handler.ptr();
|
|
}
|
|
|
|
ObjectPtr DartLibraryCalls::DrainMicrotaskQueue() {
|
|
Zone* zone = Thread::Current()->zone();
|
|
Library& isolate_lib = Library::Handle(zone, Library::IsolateLibrary());
|
|
ASSERT(!isolate_lib.IsNull());
|
|
Function& function =
|
|
Function::Handle(zone, isolate_lib.LookupFunctionAllowPrivate(
|
|
Symbols::_runPendingImmediateCallback()));
|
|
const Object& result = Object::Handle(
|
|
zone, DartEntry::InvokeFunction(function, Object::empty_array()));
|
|
ASSERT(result.IsNull() || result.IsError());
|
|
return result.ptr();
|
|
}
|
|
|
|
ObjectPtr DartLibraryCalls::EnsureScheduleImmediate() {
|
|
Zone* zone = Thread::Current()->zone();
|
|
const Library& async_lib = Library::Handle(zone, Library::AsyncLibrary());
|
|
ASSERT(!async_lib.IsNull());
|
|
const Function& function =
|
|
Function::Handle(zone, async_lib.LookupFunctionAllowPrivate(
|
|
Symbols::_ensureScheduleImmediate()));
|
|
ASSERT(!function.IsNull());
|
|
const Object& result = Object::Handle(
|
|
zone, DartEntry::InvokeFunction(function, Object::empty_array()));
|
|
ASSERT(result.IsNull() || result.IsError());
|
|
return result.ptr();
|
|
}
|
|
|
|
static ObjectPtr RehashObjects(Zone* zone,
|
|
const Library& library,
|
|
const Object& array_or_growable_array) {
|
|
ASSERT(array_or_growable_array.IsArray() ||
|
|
array_or_growable_array.IsGrowableObjectArray());
|
|
const auto& rehashing_function = Function::Handle(
|
|
zone, library.LookupFunctionAllowPrivate(Symbols::_rehashObjects()));
|
|
ASSERT(!rehashing_function.IsNull());
|
|
|
|
const auto& arguments = Array::Handle(zone, Array::New(1));
|
|
arguments.SetAt(0, array_or_growable_array);
|
|
|
|
return DartEntry::InvokeFunction(rehashing_function, arguments);
|
|
}
|
|
|
|
ObjectPtr DartLibraryCalls::RehashObjectsInDartCollection(
|
|
Thread* thread,
|
|
const Object& array_or_growable_array) {
|
|
auto zone = thread->zone();
|
|
const auto& collections_lib =
|
|
Library::Handle(zone, Library::CollectionLibrary());
|
|
return RehashObjects(zone, collections_lib, array_or_growable_array);
|
|
}
|
|
|
|
ObjectPtr DartLibraryCalls::RehashObjectsInDartCore(
|
|
Thread* thread,
|
|
const Object& array_or_growable_array) {
|
|
auto zone = thread->zone();
|
|
const auto& core_lib = Library::Handle(zone, Library::CoreLibrary());
|
|
return RehashObjects(zone, core_lib, array_or_growable_array);
|
|
}
|
|
|
|
} // namespace dart
|