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sdk/runtime/bin/io_natives.cc
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Alexander Markov 6195ea86bc [vm] Remove irregular type arguments parameter from factories 
In the VM, factory constructors always had an extra "type arguments"
parameter, even if class is not generic. Factory constructor bodies
were using class type parameters instead of function type parameters.

This results in extra code when calling non-generic factories
which is slightly inefficient in terms of code size and performance.
Also, it creates an additional complexity throughout the system as
factories should be special cased in many places.

This change removes artificial "type arguments" parameter, treating
factory constructors basically as static methods. This matches
kernel AST representation.

TEST=ci

Change-Id: I957583cb2ce9a3c408699880a04036e06b01dd31
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/501762
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2026-05-12 06:11:15 -07:00

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// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "bin/io_natives.h"
#include <stdlib.h>
#include <string.h>
#include "bin/builtin.h"
#include "bin/dartutils.h"
#include "bin/file_system_watcher.h"
#include "bin/socket_base.h"
#include "include/dart_api.h"
#include "platform/assert.h"
namespace dart {
namespace bin {
// Lists the native functions implementing advanced dart:io classes.
// Some classes, like File and Directory, list their implementations in
// builtin_natives.cc instead.
#define IO_NATIVE_LIST(V) \
V(Crypto_GetRandomBytes, 1) \
V(Directory_Create, 2) \
V(Directory_CreateTemp, 2) \
V(Directory_Current, 1) \
V(Directory_Delete, 3) \
V(Directory_Exists, 2) \
V(Directory_FillWithDirectoryListing, 5) \
V(Directory_GetAsyncDirectoryListerPointer, 1) \
V(Directory_Rename, 3) \
V(Directory_SetAsyncDirectoryListerPointer, 2) \
V(Directory_SetCurrent, 2) \
V(Directory_SystemTemp, 1) \
V(EventHandler_SendData, 3) \
V(EventHandler_TimerMillisecondClock, 0) \
V(File_AreIdentical, 3) \
V(File_Close, 1) \
V(File_Copy, 3) \
V(File_Create, 3) \
V(File_CreateLink, 3) \
V(File_CreatePipe, 1) \
V(File_Delete, 2) \
V(File_DeleteLink, 2) \
V(File_Exists, 2) \
V(File_Flush, 1) \
V(File_GetPointer, 1) \
V(File_GetFD, 1) \
V(File_GetStdioHandleType, 1) \
V(File_GetType, 3) \
V(File_LastAccessed, 2) \
V(File_LastModified, 2) \
V(File_Length, 1) \
V(File_LengthFromPath, 2) \
V(File_LinkTarget, 2) \
V(File_Lock, 4) \
V(File_Open, 3) \
V(File_OpenStdio, 1) \
V(File_Position, 1) \
V(File_Read, 2) \
V(File_ReadByte, 1) \
V(File_ReadInto, 4) \
V(File_Rename, 3) \
V(File_RenameLink, 3) \
V(File_ResolveSymbolicLinks, 2) \
V(File_SetLastAccessed, 3) \
V(File_SetLastModified, 3) \
V(File_SetPointer, 2) \
V(File_SetPosition, 2) \
V(File_Stat, 2) \
V(File_Truncate, 2) \
V(File_WriteByte, 2) \
V(File_WriteFrom, 4) \
V(FileSystemWatcher_GetSocketId, 2) \
V(FileSystemWatcher_InitWatcher, 0) \
V(FileSystemWatcher_IsSupported, 0) \
V(FileSystemWatcher_ReadEvents, 2) \
V(FileSystemWatcher_UnwatchPath, 2) \
V(FileSystemWatcher_WatchPath, 5) \
V(Filter_CreateZLibDeflate, 8) \
V(Filter_CreateZLibInflate, 5) \
V(Filter_Process, 4) \
V(Filter_Processed, 3) \
V(ResourceHandleImpl_toFile, 1) \
V(ResourceHandleImpl_toSocket, 1) \
V(ResourceHandleImpl_toRawSocket, 1) \
V(ResourceHandleImpl_toRawDatagramSocket, 1) \
V(InternetAddress_Parse, 1) \
V(InternetAddress_ParseScopedLinkLocalAddress, 1) \
V(InternetAddress_RawAddrToString, 1) \
V(IOService_NewServicePort, 0) \
V(Namespace_Create, 2) \
V(Namespace_GetDefault, 0) \
V(Namespace_GetPointer, 1) \
V(OSError_inProgressErrorCode, 0) \
V(Platform_NumberOfProcessors, 0) \
V(Platform_OperatingSystem, 0) \
V(Platform_OperatingSystemVersion, 0) \
V(Platform_PathSeparator, 0) \
V(Platform_LocalHostname, 0) \
V(Platform_ExecutableName, 0) \
V(Platform_ResolvedExecutableName, 0) \
V(Platform_Environment, 0) \
V(Platform_ExecutableArguments, 0) \
V(Platform_GetVersion, 0) \
V(Platform_LocaleName, 0) \
V(Process_Start, 12) \
V(Process_Wait, 5) \
V(Process_KillPid, 2) \
V(Process_SetExitCode, 1) \
V(Process_GetExitCode, 0) \
V(Process_Exit, 1) \
V(Process_Sleep, 1) \
V(Process_Pid, 1) \
V(Process_SetSignalHandler, 1) \
V(Process_ClearSignalHandler, 1) \
V(ProcessInfo_CurrentRSS, 0) \
V(ProcessInfo_MaxRSS, 0) \
V(RawSocketOption_GetOptionValue, 1) \
V(SecureSocket_Connect, 7) \
V(SecureSocket_Destroy, 1) \
V(SecureSocket_FilterPointer, 1) \
V(SecureSocket_GetSelectedProtocol, 1) \
V(SecureSocket_Handshake, 2) \
V(SecureSocket_MarkAsTrusted, 3) \
V(SecureSocket_NewX509CertificateWrapper, 1) \
V(SecureSocket_Init, 1) \
V(SecureSocket_PeerCertificate, 1) \
V(SecureSocket_RegisterBadCertificateCallback, 2) \
V(SecureSocket_RegisterKeyLogPort, 2) \
V(SecureSocket_RegisterHandshakeCompleteCallback, 2) \
V(SecurityContext_Allocate, 1) \
V(SecurityContext_UsePrivateKeyBytes, 3) \
V(SecurityContext_SetAlpnProtocols, 3) \
V(SecurityContext_SetClientAuthoritiesBytes, 3) \
V(SecurityContext_SetTrustedCertificatesBytes, 3) \
V(SecurityContext_TrustBuiltinRoots, 1) \
V(SecurityContext_SetAllowTlsRenegotiation, 2) \
V(SecurityContext_SetMinimumProtocolVersion, 2) \
V(SecurityContext_GetMinimumProtocolVersion, 1) \
V(SecurityContext_UseCertificateChainBytes, 3) \
V(ServerSocket_Accept, 2) \
V(ServerSocket_CreateBindListen, 7) \
V(ServerSocket_CreateUnixDomainBindListen, 5) \
V(SocketBase_IsBindError, 2) \
V(Socket_Available, 1) \
V(Socket_AvailableDatagram, 1) \
V(Socket_CreateBindConnect, 6) \
V(Socket_CreateUnixDomainBindConnect, 4) \
V(Socket_CreateBindDatagram, 6) \
V(Socket_CreateConnect, 4) \
V(Socket_CreateUnixDomainConnect, 3) \
V(Socket_GetPort, 1) \
V(Socket_GetRemotePeer, 1) \
V(Socket_GetError, 1) \
V(Socket_Fatal, 1) \
V(Socket_GetFD, 1) \
V(Socket_GetOption, 3) \
V(Socket_GetRawOption, 4) \
V(Socket_GetSocketId, 1) \
V(Socket_GetStdioHandle, 2) \
V(Socket_GetType, 1) \
V(Socket_JoinMulticast, 4) \
V(Socket_LeaveMulticast, 4) \
V(Socket_Read, 2) \
V(Socket_RecvFrom, 1) \
V(Socket_ReceiveMessage, 2) \
V(Socket_SendMessage, 5) \
V(Socket_SendTo, 6) \
V(Socket_SetOption, 4) \
V(Socket_SetRawOption, 4) \
V(Socket_SetSocketId, 3) \
V(Socket_WriteList, 4) \
V(Socket_HasPendingWrite, 1) \
V(SocketControlMessage_fromHandles, 1) \
V(SocketControlMessageImpl_extractHandles, 1) \
V(Stdin_ReadByte, 1) \
V(Stdin_GetEchoMode, 1) \
V(Stdin_SetEchoMode, 2) \
V(Stdin_GetEchoNewlineMode, 1) \
V(Stdin_SetEchoNewlineMode, 2) \
V(Stdin_GetLineMode, 1) \
V(Stdin_SetLineMode, 2) \
V(Stdin_AnsiSupported, 1) \
V(Stdout_GetTerminalSize, 1) \
V(Stdout_AnsiSupported, 1) \
V(StringToSystemEncoding, 1) \
V(SynchronousSocket_Available, 1) \
V(SynchronousSocket_CloseSync, 1) \
V(SynchronousSocket_CreateConnectSync, 3) \
V(SynchronousSocket_GetPort, 1) \
V(SynchronousSocket_GetRemotePeer, 1) \
V(SynchronousSocket_LookupRequest, 2) \
V(SynchronousSocket_ShutdownRead, 1) \
V(SynchronousSocket_ShutdownWrite, 1) \
V(SynchronousSocket_Read, 2) \
V(SynchronousSocket_ReadList, 4) \
V(SynchronousSocket_WriteList, 4) \
V(SystemEncodingToString, 1) \
V(X509_Der, 1) \
V(X509_Pem, 1) \
V(X509_Sha1, 1) \
V(X509_Subject, 1) \
V(X509_Issuer, 1) \
V(X509_StartValidity, 1) \
V(X509_EndValidity, 1)
#if defined(DART_HOST_OS_MACOS) || defined(DART_HOST_OS_WINDOWS)
#define IO_FFI_NATIVE_LIST(V) V(FileSystemWatcher::DestroyWatch)
#else
#define IO_FFI_NATIVE_LIST(V)
#endif
IO_NATIVE_LIST(DECLARE_FUNCTION);
static const struct NativeEntries {
const char* name_;
Dart_NativeFunction function_;
int argument_count_;
} IOEntries[] = {IO_NATIVE_LIST(REGISTER_FUNCTION)};
Dart_NativeFunction IONativeLookup(Dart_Handle name,
int argument_count,
bool* auto_setup_scope) {
#if defined(DART_PRECOMPILER) && !defined(TESTING)
UNREACHABLE(); // gen_snapshot does not execute Dart code.
#endif
const char* function_name = nullptr;
Dart_Handle result = Dart_StringToCString(name, &function_name);
ASSERT(!Dart_IsError(result));
ASSERT(function_name != nullptr);
ASSERT(auto_setup_scope != nullptr);
*auto_setup_scope = true;
int num_entries = sizeof(IOEntries) / sizeof(struct NativeEntries);
for (int i = 0; i < num_entries; i++) {
const struct NativeEntries* entry = &(IOEntries[i]);
if ((strcmp(function_name, entry->name_) == 0) &&
(entry->argument_count_ == argument_count)) {
return reinterpret_cast<Dart_NativeFunction>(entry->function_);
}
}
return nullptr;
}
const uint8_t* IONativeSymbol(Dart_NativeFunction nf) {
#if defined(DART_PRECOMPILER) && !defined(TESTING)
UNREACHABLE(); // gen_snapshot does not execute Dart code.
#endif
int num_entries = sizeof(IOEntries) / sizeof(struct NativeEntries);
for (int i = 0; i < num_entries; i++) {
const struct NativeEntries* entry = &(IOEntries[i]);
if (reinterpret_cast<Dart_NativeFunction>(entry->function_) == nf) {
return reinterpret_cast<const uint8_t*>(entry->name_);
}
}
return nullptr;
}
#define REGISTER_FFI_NATIVE_ENTRY(name) {#name, reinterpret_cast<void*>(&name)},
static const struct FfiNativeEntries {
const char* const name_;
void* const function_;
} IOFfiEntries[] = {IO_FFI_NATIVE_LIST(REGISTER_FFI_NATIVE_ENTRY)};
void* IOFfiNativeLookup(const char* name, uintptr_t argument_count) {
int num_entries = sizeof(IOFfiEntries) / sizeof(struct FfiNativeEntries);
for (int i = 0; i < num_entries; i++) {
const struct FfiNativeEntries* entry = &(IOFfiEntries[i]);
if (strcmp(name, entry->name_) == 0) {
return entry->function_;
}
}
return nullptr;
}
} // namespace bin
} // namespace dart
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