Tony
57b27a7b44
- Updated conditional compilation flags throughout the runtime codebase to transition from DART_DYNAMIC_MODULES to DART_BYTECODE_INTERPRETER. - Adjusted logic in various files including object_graph_copy.cc, object_reload.cc, profiler.cc, and others to ensure compatibility with the new interpreter model. - Ensured that all references to dynamic modules are replaced with bytecode interpreter checks, maintaining functionality for interpreted code execution. - Modified stack frame handling and service-related code to align with the new interpreter architecture. - Updated tests and service implementations to reflect the changes in the runtime environment. Signed-off-by: Tony <tonylu@tony-cloud.com>
847 lines
32 KiB
C++
847 lines
32 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 <array>
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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/interpreter.h"
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#include "vm/log.h"
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#include "vm/object_store.h"
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#include "vm/resolver.h"
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#include "vm/roots.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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ObjectPtr DartEntry::InvokeFunction(const Function& function,
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const Array& arguments) {
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ASSERT(Thread::Current()->IsDartMutatorThread());
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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 DartEntryScope : public TransitionToGenerated {
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public:
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NO_SANITIZE_SAFE_STACK
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explicit DartEntryScope(Thread* thread) : TransitionToGenerated(thread) {
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// Ensure we do not attempt to long jump across Dart frames.
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saved_long_jump_base_ = thread->long_jump_base();
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thread->set_long_jump_base(nullptr);
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#if defined(USING_SAFE_STACK)
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// Remember the safestack pointer at entry so it can be restored in
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// Exceptions::JumpToFrame when a Dart exception jumps over C++ frames.
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saved_safestack_ = thread->saved_safestack();
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thread->set_saved_safestack(OSThread::GetCurrentSafestackPointer());
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#endif
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#if defined(USING_SHADOW_CALL_STACK)
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saved_shadow_call_stack_ = thread->saved_shadow_call_stack();
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#endif
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saved_api_scope_ = thread->api_top_scope();
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}
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~DartEntryScope() {
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// Propagating an Error that is not an UnhandledException, such as an
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// UnwindError, will bypass the DLRT_ExitHandleScope in an FFI callout
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// trampoline.
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while (thread()->api_top_scope() != saved_api_scope_) [[unlikely]] {
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thread()->ExitApiScope();
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}
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#if defined(USING_SHADOW_CALL_STACK)
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thread()->set_saved_shadow_call_stack(saved_shadow_call_stack_);
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#endif
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#if defined(USING_SAFE_STACK)
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thread()->set_saved_safestack(saved_safestack_);
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#endif
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ASSERT(thread()->long_jump_base() == nullptr);
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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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#if defined(USING_SAFE_STACK)
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uword saved_safestack_ = 0;
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#endif
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#if defined(USING_SHADOW_CALL_STACK)
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uword saved_shadow_call_stack_ = 0;
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#endif
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ApiLocalScope* saved_api_scope_;
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};
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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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extern "C" typedef uword /*ObjectPtr*/ (*invokestub)(
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#if defined(DART_PRECOMPILED_RUNTIME)
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uword entry_point,
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#else
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uword /*CodePtr*/ target_code,
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#endif
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uword /*ArrayPtr*/ arguments_descriptor,
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uword /*ArrayPtr*/ arguments,
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Thread* thread);
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// Private helper for converting types and switching between Simulator
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// and CPU invocations.
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static ObjectPtr InvokeDartCode(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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const uword stub = StubCode::InvokeDartCode().EntryPoint();
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#if defined(DART_INCLUDE_SIMULATOR)
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if (FLAG_use_simulator) {
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return static_cast<ObjectPtr>(
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static_cast<intptr_t>(Simulator::Current()->Call(
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stub, entry_point, static_cast<uword>(arguments_descriptor.ptr()),
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static_cast<uword>(arguments.ptr()),
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reinterpret_cast<uword>(thread))));
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}
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#endif
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auto invoke = reinterpret_cast<invokestub>(stub);
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uword result =
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invoke(entry_point, static_cast<uword>(arguments_descriptor.ptr()),
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static_cast<uword>(arguments.ptr()), thread);
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return static_cast<ObjectPtr>(result);
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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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#if defined(DART_PRECOMPILER)
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if (FLAG_precompiled_mode) {
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FATAL("Should never invoke Dart code during AOT compilation");
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}
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#endif
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Thread* thread = Thread::Current();
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ASSERT(thread->IsDartMutatorThread());
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ASSERT(!function.IsNull());
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#if defined(DART_BYTECODE_INTERPRETER)
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if (function.IsInterpreted()) {
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// SuspendLongJumpScope suspend_long_jump_scope(thread);
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TransitionToGenerated transition(thread);
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return Interpreter::Current()->Call(function, arguments_descriptor,
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arguments, thread);
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}
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#endif // defined(DART_BYTECODE_INTERPRETER)
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#if !defined(DART_PRECOMPILED_RUNTIME)
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if (!function.HasCode()) {
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const Object& result = Object::Handle(
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thread->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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}
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#endif // defined(DART_PRECOMPILED_RUNTIME)
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// Loading the function's current code must be after the safepoint transition,
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// otherwise it might have already been replaced before we call it.
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DartEntryScope dart_entry_scope(thread);
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ASSERT(function.HasCode());
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// Note: InvokeFunction takes Arguments then ArgumentsDescriptor,
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// where as InvokeDartCode takes ArgumentsDescriptor then Arguments.
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return InvokeDartCode(
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#if defined(DART_PRECOMPILED_RUNTIME)
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function.entry_point(),
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#else
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static_cast<uword>(function.CurrentCode()),
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#endif
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arguments_descriptor, arguments, thread);
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}
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#if defined(TESTING)
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NO_SANITIZE_SAFE_STACK
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ObjectPtr DartEntry::InvokeCode(const Code& 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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#if defined(DART_PRECOMPILER)
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if (FLAG_precompiled_mode) {
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FATAL("Should never invoke Dart code during AOT compilation");
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}
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#endif
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ASSERT(!code.IsNull());
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ASSERT(thread->no_callback_scope_depth() == 0);
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// Loading the code's raw pointer must be after the safepoint transition,
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// otherwise it might have been moved before we call it.
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DartEntryScope dart_entry_scope(thread);
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return InvokeDartCode(
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#if defined(DART_PRECOMPILED_RUNTIME)
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code.EntryPoint(),
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#else // defined(DART_PRECOMPILED_RUNTIME)
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static_cast<uword>(code.ptr()),
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#endif
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arguments_descriptor, arguments, thread);
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}
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#endif // defined(TESTING)
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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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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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intptr_t ArgumentsDescriptor::CacheIndexFor(intptr_t type_args_len,
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intptr_t num_arguments) {
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static constexpr auto kOffsetTo = []() {
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std::array<intptr_t, kMaxTypeArgsForCachedDescriptor + 1> offset = {0};
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for (intptr_t i = 1; i <= kMaxTypeArgsForCachedDescriptor; i++) {
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offset[i] =
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offset[i - 1] + (kMaxNumArgumentsForCachedDescriptor[i - 1] + 1);
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}
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return offset;
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}();
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return kOffsetTo[type_args_len] + num_arguments;
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}
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bool ArgumentsDescriptor::CanUseCachedDescriptor(intptr_t type_args_len,
|
|
intptr_t num_arguments) {
|
|
return (type_args_len <= kMaxTypeArgsForCachedDescriptor) &&
|
|
(num_arguments <= kMaxNumArgumentsForCachedDescriptor[type_args_len]);
|
|
}
|
|
|
|
bool ArgumentsDescriptor::IsCached() const {
|
|
const intptr_t num_type_arguments = TypeArgsLen();
|
|
const intptr_t num_arguments = Count();
|
|
return CanUseCachedDescriptor(num_type_arguments, num_arguments) &&
|
|
(array_.ptr() == Roots::cached_args_descriptor(CacheIndexFor(
|
|
num_type_arguments, num_arguments)));
|
|
}
|
|
|
|
ArrayPtr ArgumentsDescriptor::New(intptr_t type_args_len,
|
|
intptr_t num_arguments,
|
|
intptr_t size_arguments,
|
|
const Array& optional_arguments_names,
|
|
Heap::Space space) {
|
|
const intptr_t num_named_args =
|
|
optional_arguments_names.IsNull() ? 0 : optional_arguments_names.Length();
|
|
if (num_named_args == 0) {
|
|
return ArgumentsDescriptor::New(type_args_len, num_arguments,
|
|
size_arguments, space);
|
|
}
|
|
ASSERT(type_args_len >= 0);
|
|
ASSERT(num_arguments >= 0);
|
|
const intptr_t num_pos_args = num_arguments - num_named_args;
|
|
|
|
// 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 (num_arguments == size_arguments &&
|
|
CanUseCachedDescriptor(type_args_len, num_arguments)) {
|
|
return Roots::cached_args_descriptor(
|
|
CacheIndexFor(type_args_len, 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() {
|
|
intptr_t cache_index = 0;
|
|
for (intptr_t type_args_len = 0;
|
|
type_args_len <= kMaxTypeArgsForCachedDescriptor; type_args_len++) {
|
|
for (intptr_t num_arguments = 0;
|
|
num_arguments <= kMaxNumArgumentsForCachedDescriptor[type_args_len];
|
|
num_arguments++) {
|
|
Roots::set_cached_args_descriptor(
|
|
cache_index++,
|
|
NewNonCached(type_args_len, num_arguments, num_arguments,
|
|
/*canonicalize=*/false, Heap::kOld));
|
|
}
|
|
}
|
|
ASSERT(cache_index == kCachedDescriptorCount);
|
|
}
|
|
|
|
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* const thread = Thread::Current();
|
|
Zone* const zone = thread->zone();
|
|
const auto& function = Function::Handle(
|
|
zone, thread->isolate_group()->object_store()->lookup_port_handler());
|
|
ASSERT(!function.IsNull());
|
|
Array& args = Array::Handle(
|
|
zone, thread->isolate()->isolate_object_store()->dart_args_1());
|
|
ASSERT(!args.IsNull());
|
|
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();
|
|
}
|
|
|
|
static void DebuggerSetResumeIfStepping(Isolate* isolate) {
|
|
#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
|
|
}
|
|
|
|
ObjectPtr DartLibraryCalls::HandleMessage(Dart_Port port_id,
|
|
const Instance& message) {
|
|
auto* const thread = Thread::Current();
|
|
auto* const zone = thread->zone();
|
|
auto* const isolate = thread->isolate();
|
|
auto* const object_store = thread->isolate_group()->object_store();
|
|
const auto& function =
|
|
Function::Handle(zone, object_store->handle_message_function());
|
|
ASSERT(!function.IsNull());
|
|
Array& args =
|
|
Array::Handle(zone, isolate->isolate_object_store()->dart_args_2());
|
|
ASSERT(!args.IsNull());
|
|
args.SetAt(0, Integer::Handle(zone, Integer::New(port_id)));
|
|
args.SetAt(1, message);
|
|
DebuggerSetResumeIfStepping(isolate);
|
|
const Object& handler =
|
|
Object::Handle(zone, DartEntry::InvokeFunction(function, args));
|
|
return handler.ptr();
|
|
}
|
|
|
|
ObjectPtr DartLibraryCalls::HandleFinalizerMessage(
|
|
const FinalizerBase& finalizer) {
|
|
if (FLAG_trace_finalizers) {
|
|
THR_Print("Running finalizer %p callback on isolate %p\n",
|
|
finalizer.ptr()->untag(), finalizer.isolate());
|
|
}
|
|
|
|
auto* const thread = Thread::Current();
|
|
auto* const zone = thread->zone();
|
|
auto* const isolate = thread->isolate();
|
|
auto* const object_store = thread->isolate_group()->object_store();
|
|
auto& function = Function::Handle(zone);
|
|
if (finalizer.IsFinalizer()) {
|
|
function ^= object_store->handle_finalizer_message_function();
|
|
} else {
|
|
ASSERT(finalizer.IsNativeFinalizer());
|
|
function ^= object_store->handle_native_finalizer_message_function();
|
|
}
|
|
ASSERT(!function.IsNull());
|
|
Array& args =
|
|
Array::Handle(zone, isolate->isolate_object_store()->dart_args_1());
|
|
ASSERT(!args.IsNull());
|
|
args.SetAt(0, finalizer);
|
|
DebuggerSetResumeIfStepping(isolate);
|
|
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();
|
|
}
|
|
|
|
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::RehashObjectsInDartCompactHash(
|
|
Thread* thread,
|
|
const Object& array_or_growable_array) {
|
|
auto zone = thread->zone();
|
|
const auto& compact_hash_lib =
|
|
Library::Handle(zone, Library::CompactHashLibrary());
|
|
return RehashObjects(zone, compact_hash_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
|