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// 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 <stdlib.h>
#include <stdio.h>
#include <string.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/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) \
V(Builtin_LoadSource, 4) \
V(Builtin_AsyncLoadError, 3) \
V(Builtin_DoneLoading, 0) \
V(Builtin_NativeLibraryExtension, 0) \
V(Builtin_GetCurrentDirectory, 0) \
BUILTIN_NATIVE_LIST(DECLARE_FUNCTION);
static struct NativeEntries {
const char* name_;
Dart_NativeFunction function_;
int argument_count_;
} BuiltinEntries[] = {
BUILTIN_NATIVE_LIST(REGISTER_FUNCTION)
};
/**
* 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 = NULL;
Dart_Handle result = Dart_StringToCString(name, &function_name);
DART_CHECK_VALID(result);
ASSERT(function_name != NULL);
ASSERT(auto_setup_scope != NULL);
*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_) &&
(entry->argument_count_ == argument_count)) {
return reinterpret_cast<Dart_NativeFunction>(entry->function_);
}
}
return IONativeLookup(name, argument_count, auto_setup_scope);
}
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);
}
extern bool capture_stdout;
// 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;
uint8_t* chars = NULL;
Dart_Handle str = Dart_GetNativeArgument(args, 0);
Dart_Handle result = Dart_StringToUTF8(str, &chars, &length);
if (Dart_IsError(result)) Dart_PropagateError(result);
// Uses fwrite to support printing NUL bytes.
fwrite(chars, 1, length, stdout);
fputs("\n", stdout);
fflush(stdout);
if (capture_stdout) {
// For now we report print output on the Stdout stream.
uint8_t newline[] = { '\n' };
Dart_ServiceSendDataEvent("Stdout", "WriteEvent", chars, length);
Dart_ServiceSendDataEvent("Stdout", "WriteEvent",
newline, sizeof(newline));
}
}
} // namespace bin
} // namespace dart