blob: bd28a128a226d2bc9d1c82cf5069193d90bb2637 [file] [log] [blame]
// Copyright (c) 2012, 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "include/bin/dart_io_api.h"
#include "include/dart_api.h"
#include "include/dart_tools_api.h"
#include "platform/assert.h"
#include "bin/builtin.h"
#include "bin/dartutils.h"
#include "bin/file.h"
#include "bin/io_natives.h"
#include "bin/platform.h"
namespace dart {
namespace bin {
// Lists the native functions implementing basic functionality in
// standalone dart, such as printing, file I/O, and platform information.
// Advanced I/O classes like sockets and process management are implemented
// using functions listed in io_natives.cc.
#define BUILTIN_NATIVE_LIST(V) V(Builtin_PrintString, 1)
BUILTIN_NATIVE_LIST(DECLARE_FUNCTION);
static struct NativeEntries {
const char* name_;
Dart_NativeFunction function_;
int argument_count_;
} BuiltinEntries[] = {BUILTIN_NATIVE_LIST(REGISTER_FUNCTION)};
void Builtin_DummyNative(Dart_NativeArguments args) {
UNREACHABLE();
}
/**
* Looks up native functions in both libdart_builtin and libdart_io.
*/
Dart_NativeFunction Builtin::NativeLookup(Dart_Handle name,
int argument_count,
bool* auto_setup_scope) {
const char* function_name = nullptr;
Dart_Handle err = Dart_StringToCString(name, &function_name);
if (Dart_IsError(err)) {
Dart_PropagateError(err);
}
ASSERT(function_name != nullptr);
ASSERT(auto_setup_scope != nullptr);
*auto_setup_scope = true;
int num_entries = sizeof(BuiltinEntries) / sizeof(struct NativeEntries);
for (int i = 0; i < num_entries; i++) {
struct NativeEntries* entry = &(BuiltinEntries[i]);
if ((strcmp(function_name, entry->name_) == 0) &&
(entry->argument_count_ == argument_count)) {
return reinterpret_cast<Dart_NativeFunction>(entry->function_);
}
}
Dart_NativeFunction result =
IONativeLookup(name, argument_count, auto_setup_scope);
if (result == nullptr) {
result = Builtin_DummyNative;
}
return result;
}
const uint8_t* Builtin::NativeSymbol(Dart_NativeFunction nf) {
int num_entries = sizeof(BuiltinEntries) / sizeof(struct NativeEntries);
for (int i = 0; i < num_entries; i++) {
struct NativeEntries* entry = &(BuiltinEntries[i]);
if (reinterpret_cast<Dart_NativeFunction>(entry->function_) == nf) {
return reinterpret_cast<const uint8_t*>(entry->name_);
}
}
return IONativeSymbol(nf);
}
// Implementation of native functions which are used for some
// test/debug functionality in standalone dart mode.
void FUNCTION_NAME(Builtin_PrintString)(Dart_NativeArguments args) {
intptr_t length = 0;
Dart_Handle str = Dart_GetNativeArgument(args, 0);
Dart_Handle result = Dart_StringUTF8Length(str, &length);
if (Dart_IsError(result)) {
Dart_PropagateError(result);
}
intptr_t new_length = length + 1;
uint8_t* chars = Dart_ScopeAllocate(new_length);
ASSERT(chars != nullptr);
result = Dart_CopyUTF8EncodingOfString(str, chars, length);
if (Dart_IsError(result)) {
Dart_PropagateError(result);
}
chars[length] = '\n';
// Uses fwrite to support printing NUL bytes.
intptr_t res = fwrite(chars, 1, new_length, stdout);
ASSERT(res == new_length);
fflush(stdout);
if (ShouldCaptureStdout()) {
// For now we report print output on the Stdout stream.
const char* res =
Dart_ServiceSendDataEvent("Stdout", "WriteEvent", chars, new_length);
ASSERT(res == nullptr);
}
}
} // namespace bin
} // namespace dart