node/src/js_native_api.h at main · fetchapi/node · GitHub

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#ifndef SRC_JS_NATIVE_API_H_

#define SRC_JS_NATIVE_API_H_

// This file needs to be compatible with C compilers.

#include <stdbool.h> // NOLINT(modernize-deprecated-headers)

#include <stddef.h> // NOLINT(modernize-deprecated-headers)

// Use INT_MAX, this should only be consumed by the pre-processor anyway.

#define NAPI_VERSION_EXPERIMENTAL 2147483647

#ifndef NAPI_VERSION

#ifdef NAPI_EXPERIMENTAL

#define NAPI_VERSION NAPI_VERSION_EXPERIMENTAL

#else

// The baseline version for N-API.

// The NAPI_VERSION controls which version will be used by default when

// compilling a native addon. If the addon developer specifically wants to use

// functions available in a new version of N-API that is not yet ported in all

// LTS versions, they can set NAPI_VERSION knowing that they have specifically

// depended on that version.

#define NAPI_VERSION 8

#endif

#include "js_native_api_types.h"

// If you need __declspec(dllimport), either include <node_api.h> instead, or

// define NAPI_EXTERN as __declspec(dllimport) on the compiler's command line.

#ifndef NAPI_EXTERN

#ifdef _WIN32

#define NAPI_EXTERN __declspec(dllexport)

#elif defined(__wasm__)

#define NAPI_EXTERN \

__attribute__((visibility("default"))) \

__attribute__((__import_module__("napi")))

#else

#define NAPI_EXTERN __attribute__((visibility("default")))

#endif

#define NAPI_AUTO_LENGTH SIZE_MAX

#ifdef __cplusplus

#define EXTERN_C_START extern "C" {

#define EXTERN_C_END }

#else

#define EXTERN_C_START

#define EXTERN_C_END

#endif

EXTERN_C_START

NAPI_EXTERN napi_status NAPI_CDECL

napi_get_last_error_info(napi_env env, const napi_extended_error_info** result);

// Getters for defined singletons

NAPI_EXTERN napi_status NAPI_CDECL napi_get_undefined(napi_env env,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_null(napi_env env,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_global(napi_env env,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_boolean(napi_env env,

bool value,

napi_value* result);

// Methods to create Primitive types/Objects

NAPI_EXTERN napi_status NAPI_CDECL napi_create_object(napi_env env,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_create_array(napi_env env,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL

napi_create_array_with_length(napi_env env, size_t length, napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_create_double(napi_env env,

double value,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_create_int32(napi_env env,

int32_t value,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_create_uint32(napi_env env,

uint32_t value,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_create_int64(napi_env env,

int64_t value,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_create_string_latin1(

napi_env env, const char* str, size_t length, napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_create_string_utf8(napi_env env,

const char* str,

size_t length,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_create_string_utf16(napi_env env,

const char16_t* str,

size_t length,

napi_value* result);

#ifdef NAPI_EXPERIMENTAL

NAPI_EXTERN napi_status NAPI_CDECL

node_api_create_external_string_latin1(napi_env env,

char* str,

size_t length,

napi_finalize finalize_callback,

void* finalize_hint,

napi_value* result,

bool* copied);

NAPI_EXTERN napi_status NAPI_CDECL

node_api_create_external_string_utf16(napi_env env,

char16_t* str,

size_t length,

napi_finalize finalize_callback,

void* finalize_hint,

napi_value* result,

bool* copied);

#endif // NAPI_EXPERIMENTAL

NAPI_EXTERN napi_status NAPI_CDECL napi_create_symbol(napi_env env,

napi_value description,

napi_value* result);

#if NAPI_VERSION >= 9

NAPI_EXTERN napi_status NAPI_CDECL

node_api_symbol_for(napi_env env,

const char* utf8description,

size_t length,

napi_value* result);

#endif // NAPI_VERSION >= 9

NAPI_EXTERN napi_status NAPI_CDECL napi_create_function(napi_env env,

const char* utf8name,

size_t length,

napi_callback cb,

void* data,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_create_error(napi_env env,

napi_value code,

napi_value msg,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_create_type_error(napi_env env,

napi_value code,

napi_value msg,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_create_range_error(napi_env env,

napi_value code,

napi_value msg,

napi_value* result);

#if NAPI_VERSION >= 9

NAPI_EXTERN napi_status NAPI_CDECL node_api_create_syntax_error(

napi_env env, napi_value code, napi_value msg, napi_value* result);

#endif // NAPI_VERSION >= 9

// Methods to get the native napi_value from Primitive type

NAPI_EXTERN napi_status NAPI_CDECL napi_typeof(napi_env env,

napi_value value,

napi_valuetype* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_value_double(napi_env env,

napi_value value,

double* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_value_int32(napi_env env,

napi_value value,

int32_t* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_value_uint32(napi_env env,

napi_value value,

uint32_t* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_value_int64(napi_env env,

napi_value value,

int64_t* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_value_bool(napi_env env,

napi_value value,

bool* result);

// Copies LATIN-1 encoded bytes from a string into a buffer.

NAPI_EXTERN napi_status NAPI_CDECL napi_get_value_string_latin1(

napi_env env, napi_value value, char* buf, size_t bufsize, size_t* result);

// Copies UTF-8 encoded bytes from a string into a buffer.

NAPI_EXTERN napi_status NAPI_CDECL napi_get_value_string_utf8(

napi_env env, napi_value value, char* buf, size_t bufsize, size_t* result);

// Copies UTF-16 encoded bytes from a string into a buffer.

NAPI_EXTERN napi_status NAPI_CDECL napi_get_value_string_utf16(napi_env env,

napi_value value,

char16_t* buf,

size_t bufsize,

size_t* result);

// Methods to coerce values

// These APIs may execute user scripts

NAPI_EXTERN napi_status NAPI_CDECL napi_coerce_to_bool(napi_env env,

napi_value value,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_coerce_to_number(napi_env env,

napi_value value,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_coerce_to_object(napi_env env,

napi_value value,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_coerce_to_string(napi_env env,

napi_value value,

napi_value* result);

// Methods to work with Objects

NAPI_EXTERN napi_status NAPI_CDECL napi_get_prototype(napi_env env,

napi_value object,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_property_names(napi_env env,

napi_value object,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_set_property(napi_env env,

napi_value object,

napi_value key,

napi_value value);

NAPI_EXTERN napi_status NAPI_CDECL napi_has_property(napi_env env,

napi_value object,

napi_value key,

bool* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_property(napi_env env,

napi_value object,

napi_value key,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_delete_property(napi_env env,

napi_value object,

napi_value key,

bool* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_has_own_property(napi_env env,

napi_value object,

napi_value key,

bool* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_set_named_property(napi_env env,

napi_value object,

const char* utf8name,

napi_value value);

NAPI_EXTERN napi_status NAPI_CDECL napi_has_named_property(napi_env env,

napi_value object,

const char* utf8name,

bool* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_named_property(napi_env env,

napi_value object,

const char* utf8name,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_set_element(napi_env env,

napi_value object,

uint32_t index,

napi_value value);

NAPI_EXTERN napi_status NAPI_CDECL napi_has_element(napi_env env,

napi_value object,

uint32_t index,

bool* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_element(napi_env env,

napi_value object,

uint32_t index,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_delete_element(napi_env env,

napi_value object,

uint32_t index,

bool* result);

NAPI_EXTERN napi_status NAPI_CDECL

napi_define_properties(napi_env env,

napi_value object,

size_t property_count,

const napi_property_descriptor* properties);

// Methods to work with Arrays

NAPI_EXTERN napi_status NAPI_CDECL napi_is_array(napi_env env,

napi_value value,

bool* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_array_length(napi_env env,

napi_value value,

uint32_t* result);

// Methods to compare values

NAPI_EXTERN napi_status NAPI_CDECL napi_strict_equals(napi_env env,

napi_value lhs,

napi_value rhs,

bool* result);

// Methods to work with Functions

NAPI_EXTERN napi_status NAPI_CDECL napi_call_function(napi_env env,

napi_value recv,

napi_value func,

size_t argc,

const napi_value* argv,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_new_instance(napi_env env,

napi_value constructor,

size_t argc,

const napi_value* argv,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_instanceof(napi_env env,

napi_value object,

napi_value constructor,

bool* result);

// Methods to work with napi_callbacks

// Gets all callback info in a single call. (Ugly, but faster.)

NAPI_EXTERN napi_status NAPI_CDECL napi_get_cb_info(

napi_env env, // [in] NAPI environment handle

napi_callback_info cbinfo, // [in] Opaque callback-info handle

size_t* argc, // [in-out] Specifies the size of the provided argv array

// and receives the actual count of args.

napi_value* argv, // [out] Array of values

napi_value* this_arg, // [out] Receives the JS 'this' arg for the call

void** data); // [out] Receives the data pointer for the callback.

NAPI_EXTERN napi_status NAPI_CDECL napi_get_new_target(

napi_env env, napi_callback_info cbinfo, napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL

napi_define_class(napi_env env,

const char* utf8name,

size_t length,

napi_callback constructor,

void* data,

size_t property_count,

const napi_property_descriptor* properties,

napi_value* result);

// Methods to work with external data objects

NAPI_EXTERN napi_status NAPI_CDECL napi_wrap(napi_env env,

napi_value js_object,

void* native_object,

napi_finalize finalize_cb,

void* finalize_hint,

napi_ref* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_unwrap(napi_env env,

napi_value js_object,

void** result);

NAPI_EXTERN napi_status NAPI_CDECL napi_remove_wrap(napi_env env,

napi_value js_object,

void** result);

NAPI_EXTERN napi_status NAPI_CDECL

napi_create_external(napi_env env,

void* data,

napi_finalize finalize_cb,

void* finalize_hint,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_value_external(napi_env env,

napi_value value,

void** result);

// Methods to control object lifespan

// Set initial_refcount to 0 for a weak reference, >0 for a strong reference.

NAPI_EXTERN napi_status NAPI_CDECL

napi_create_reference(napi_env env,

napi_value value,

uint32_t initial_refcount,

napi_ref* result);

// Deletes a reference. The referenced value is released, and may

// be GC'd unless there are other references to it.

NAPI_EXTERN napi_status NAPI_CDECL napi_delete_reference(napi_env env,

napi_ref ref);

// Increments the reference count, optionally returning the resulting count.

// After this call the reference will be a strong reference because its

// refcount is >0, and the referenced object is effectively "pinned".

// Calling this when the refcount is 0 and the object is unavailable

// results in an error.

NAPI_EXTERN napi_status NAPI_CDECL napi_reference_ref(napi_env env,

napi_ref ref,

uint32_t* result);

// Decrements the reference count, optionally returning the resulting count.

// If the result is 0 the reference is now weak and the object may be GC'd

// at any time if there are no other references. Calling this when the

// refcount is already 0 results in an error.

NAPI_EXTERN napi_status NAPI_CDECL napi_reference_unref(napi_env env,

napi_ref ref,

uint32_t* result);

// Attempts to get a referenced value. If the reference is weak,

// the value might no longer be available, in that case the call

// is still successful but the result is NULL.

NAPI_EXTERN napi_status NAPI_CDECL napi_get_reference_value(napi_env env,

napi_ref ref,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL

napi_open_handle_scope(napi_env env, napi_handle_scope* result);

NAPI_EXTERN napi_status NAPI_CDECL

napi_close_handle_scope(napi_env env, napi_handle_scope scope);

NAPI_EXTERN napi_status NAPI_CDECL napi_open_escapable_handle_scope(

napi_env env, napi_escapable_handle_scope* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_close_escapable_handle_scope(

napi_env env, napi_escapable_handle_scope scope);

NAPI_EXTERN napi_status NAPI_CDECL

napi_escape_handle(napi_env env,

napi_escapable_handle_scope scope,

napi_value escapee,

napi_value* result);

// Methods to support error handling

NAPI_EXTERN napi_status NAPI_CDECL napi_throw(napi_env env, napi_value error);

NAPI_EXTERN napi_status NAPI_CDECL napi_throw_error(napi_env env,

const char* code,

const char* msg);

NAPI_EXTERN napi_status NAPI_CDECL napi_throw_type_error(napi_env env,

const char* code,

const char* msg);

NAPI_EXTERN napi_status NAPI_CDECL napi_throw_range_error(napi_env env,

const char* code,

const char* msg);

#if NAPI_VERSION >= 9

NAPI_EXTERN napi_status NAPI_CDECL node_api_throw_syntax_error(napi_env env,

const char* code,

const char* msg);

#endif // NAPI_VERSION >= 9

NAPI_EXTERN napi_status NAPI_CDECL napi_is_error(napi_env env,

napi_value value,

bool* result);

// Methods to support catching exceptions

NAPI_EXTERN napi_status NAPI_CDECL napi_is_exception_pending(napi_env env,

bool* result);

NAPI_EXTERN napi_status NAPI_CDECL

napi_get_and_clear_last_exception(napi_env env, napi_value* result);

// Methods to work with array buffers and typed arrays

NAPI_EXTERN napi_status NAPI_CDECL napi_is_arraybuffer(napi_env env,

napi_value value,

bool* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_create_arraybuffer(napi_env env,

size_t byte_length,

void** data,

napi_value* result);

#ifndef NODE_API_NO_EXTERNAL_BUFFERS_ALLOWED

NAPI_EXTERN napi_status NAPI_CDECL

napi_create_external_arraybuffer(napi_env env,

void* external_data,

size_t byte_length,

napi_finalize finalize_cb,

void* finalize_hint,

napi_value* result);

#endif // NODE_API_NO_EXTERNAL_BUFFERS_ALLOWED

NAPI_EXTERN napi_status NAPI_CDECL napi_get_arraybuffer_info(

napi_env env, napi_value arraybuffer, void** data, size_t* byte_length);

NAPI_EXTERN napi_status NAPI_CDECL napi_is_typedarray(napi_env env,

napi_value value,

bool* result);

NAPI_EXTERN napi_status NAPI_CDECL

napi_create_typedarray(napi_env env,

napi_typedarray_type type,

size_t length,

napi_value arraybuffer,

size_t byte_offset,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL

napi_get_typedarray_info(napi_env env,

napi_value typedarray,

napi_typedarray_type* type,

size_t* length,

void** data,

napi_value* arraybuffer,

size_t* byte_offset);

NAPI_EXTERN napi_status NAPI_CDECL napi_create_dataview(napi_env env,

size_t length,

napi_value arraybuffer,

size_t byte_offset,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_is_dataview(napi_env env,

napi_value value,

bool* result);

NAPI_EXTERN napi_status NAPI_CDECL

napi_get_dataview_info(napi_env env,

napi_value dataview,

size_t* bytelength,

void** data,

napi_value* arraybuffer,

size_t* byte_offset);

// version management

NAPI_EXTERN napi_status NAPI_CDECL napi_get_version(napi_env env,

uint32_t* result);

// Promises

NAPI_EXTERN napi_status NAPI_CDECL napi_create_promise(napi_env env,

napi_deferred* deferred,

napi_value* promise);

NAPI_EXTERN napi_status NAPI_CDECL napi_resolve_deferred(napi_env env,

napi_deferred deferred,

napi_value resolution);

NAPI_EXTERN napi_status NAPI_CDECL napi_reject_deferred(napi_env env,

napi_deferred deferred,

napi_value rejection);

NAPI_EXTERN napi_status NAPI_CDECL napi_is_promise(napi_env env,

napi_value value,

bool* is_promise);

// Running a script

NAPI_EXTERN napi_status NAPI_CDECL napi_run_script(napi_env env,

napi_value script,

napi_value* result);

// Memory management

NAPI_EXTERN napi_status NAPI_CDECL napi_adjust_external_memory(

napi_env env, int64_t change_in_bytes, int64_t* adjusted_value);

#if NAPI_VERSION >= 5

// Dates

NAPI_EXTERN napi_status NAPI_CDECL napi_create_date(napi_env env,

double time,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_is_date(napi_env env,

napi_value value,

bool* is_date);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_date_value(napi_env env,

napi_value value,

double* result);

// Add finalizer for pointer

NAPI_EXTERN napi_status NAPI_CDECL napi_add_finalizer(napi_env env,

napi_value js_object,

void* finalize_data,

napi_finalize finalize_cb,

void* finalize_hint,

napi_ref* result);

#endif // NAPI_VERSION >= 5

#ifdef NAPI_EXPERIMENTAL

NAPI_EXTERN napi_status NAPI_CDECL

node_api_post_finalizer(napi_env env,

napi_finalize finalize_cb,

void* finalize_data,

void* finalize_hint);

#endif // NAPI_EXPERIMENTAL

#if NAPI_VERSION >= 6

// BigInt

NAPI_EXTERN napi_status NAPI_CDECL napi_create_bigint_int64(napi_env env,

int64_t value,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL

napi_create_bigint_uint64(napi_env env, uint64_t value, napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL

napi_create_bigint_words(napi_env env,

int sign_bit,

size_t word_count,

const uint64_t* words,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_value_bigint_int64(napi_env env,

napi_value value,

int64_t* result,

bool* lossless);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_value_bigint_uint64(

napi_env env, napi_value value, uint64_t* result, bool* lossless);

NAPI_EXTERN napi_status NAPI_CDECL

napi_get_value_bigint_words(napi_env env,

napi_value value,

int* sign_bit,

size_t* word_count,

uint64_t* words);

// Object

NAPI_EXTERN napi_status NAPI_CDECL

napi_get_all_property_names(napi_env env,

napi_value object,

napi_key_collection_mode key_mode,

napi_key_filter key_filter,

napi_key_conversion key_conversion,

napi_value* result);

// Instance data

NAPI_EXTERN napi_status NAPI_CDECL napi_set_instance_data(

napi_env env, void* data, napi_finalize finalize_cb, void* finalize_hint);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_instance_data(napi_env env,

void** data);

#endif // NAPI_VERSION >= 6

#if NAPI_VERSION >= 7

// ArrayBuffer detaching

NAPI_EXTERN napi_status NAPI_CDECL

napi_detach_arraybuffer(napi_env env, napi_value arraybuffer);

NAPI_EXTERN napi_status NAPI_CDECL

napi_is_detached_arraybuffer(napi_env env, napi_value value, bool* result);

#endif // NAPI_VERSION >= 7

#if NAPI_VERSION >= 8

// Type tagging

NAPI_EXTERN napi_status NAPI_CDECL napi_type_tag_object(

napi_env env, napi_value value, const napi_type_tag* type_tag);

NAPI_EXTERN napi_status NAPI_CDECL

napi_check_object_type_tag(napi_env env,

napi_value value,

const napi_type_tag* type_tag,

bool* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_object_freeze(napi_env env,

napi_value object);

NAPI_EXTERN napi_status NAPI_CDECL napi_object_seal(napi_env env,

napi_value object);

#endif // NAPI_VERSION >= 8

EXTERN_C_END

#endif // SRC_JS_NATIVE_API_H_

node/src/js_native_api.h at main · fetchapi/node · GitHub

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