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js_native_api.h
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#ifndef SRC_JS_NATIVE_API_H_ #define SRC_JS_NATIVE_API_H_ #include <stddef.h> #include <stdbool.h> #include "js_native_api_types.h" // 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 #define NAPI_VERSION 4 #endif #endif // 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) #else #define NAPI_EXTERN __attribute__((visibility("default"))) #endif #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_get_last_error_info(napi_env env, const napi_extended_error_info** result); // Getters for defined singletons NAPI_EXTERN napi_status napi_get_undefined(napi_env env, napi_value* result); NAPI_EXTERN napi_status napi_get_null(napi_env env, napi_value* result); NAPI_EXTERN napi_status napi_get_global(napi_env env, napi_value* result); NAPI_EXTERN napi_status napi_get_boolean(napi_env env, bool value, napi_value* result); // Methods to create Primitive types/Objects NAPI_EXTERN napi_status napi_create_object(napi_env env, napi_value* result); NAPI_EXTERN napi_status napi_create_array(napi_env env, napi_value* result); NAPI_EXTERN napi_status napi_create_array_with_length(napi_env env, size_t length, napi_value* result); NAPI_EXTERN napi_status napi_create_double(napi_env env, double value, napi_value* result); NAPI_EXTERN napi_status napi_create_int32(napi_env env, int32_t value, napi_value* result); NAPI_EXTERN napi_status napi_create_uint32(napi_env env, uint32_t value, napi_value* result); NAPI_EXTERN napi_status napi_create_int64(napi_env env, int64_t value, napi_value* result); NAPI_EXTERN napi_status napi_create_string_latin1(napi_env env, const char* str, size_t length, napi_value* result); NAPI_EXTERN napi_status napi_create_string_utf8(napi_env env, const char* str, size_t length, napi_value* result); NAPI_EXTERN napi_status napi_create_string_utf16(napi_env env, const char16_t* str, size_t length, napi_value* result); NAPI_EXTERN napi_status napi_create_symbol(napi_env env, napi_value description, napi_value* result); NAPI_EXTERN napi_status 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_create_error(napi_env env, napi_value code, napi_value msg, napi_value* result); NAPI_EXTERN napi_status napi_create_type_error(napi_env env, napi_value code, napi_value msg, napi_value* result); NAPI_EXTERN napi_status napi_create_range_error(napi_env env, napi_value code, napi_value msg, napi_value* result); // Methods to get the native napi_value from Primitive type NAPI_EXTERN napi_status napi_typeof(napi_env env, napi_value value, napi_valuetype* result); NAPI_EXTERN napi_status napi_get_value_double(napi_env env, napi_value value, double* result); NAPI_EXTERN napi_status napi_get_value_int32(napi_env env, napi_value value, int32_t* result); NAPI_EXTERN napi_status napi_get_value_uint32(napi_env env, napi_value value, uint32_t* result); NAPI_EXTERN napi_status napi_get_value_int64(napi_env env, napi_value value, int64_t* result); NAPI_EXTERN napi_status 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_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_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_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_coerce_to_bool(napi_env env, napi_value value, napi_value* result); NAPI_EXTERN napi_status napi_coerce_to_number(napi_env env, napi_value value, napi_value* result); NAPI_EXTERN napi_status napi_coerce_to_object(napi_env env, napi_value value, napi_value* result); NAPI_EXTERN napi_status napi_coerce_to_string(napi_env env, napi_value value, napi_value* result); // Methods to work with Objects NAPI_EXTERN napi_status napi_get_prototype(napi_env env, napi_value object, napi_value* result); NAPI_EXTERN napi_status napi_get_property_names(napi_env env, napi_value object, napi_value* result); NAPI_EXTERN napi_status napi_set_property(napi_env env, napi_value object, napi_value key, napi_value value); NAPI_EXTERN napi_status napi_has_property(napi_env env, napi_value object, napi_value key, bool* result); NAPI_EXTERN napi_status napi_get_property(napi_env env, napi_value object, napi_value key, napi_value* result); NAPI_EXTERN napi_status napi_delete_property(napi_env env, napi_value object, napi_value key, bool* result); NAPI_EXTERN napi_status napi_has_own_property(napi_env env, napi_value object, napi_value key, bool* result); NAPI_EXTERN napi_status napi_set_named_property(napi_env env, napi_value object, const char* utf8name, napi_value value); NAPI_EXTERN napi_status napi_has_named_property(napi_env env, napi_value object, const char* utf8name, bool* result); NAPI_EXTERN napi_status napi_get_named_property(napi_env env, napi_value object, const char* utf8name, napi_value* result); NAPI_EXTERN napi_status napi_set_element(napi_env env, napi_value object, uint32_t index, napi_value value); NAPI_EXTERN napi_status napi_has_element(napi_env env, napi_value object, uint32_t index, bool* result); NAPI_EXTERN napi_status napi_get_element(napi_env env, napi_value object, uint32_t index, napi_value* result); NAPI_EXTERN napi_status napi_delete_element(napi_env env, napi_value object, uint32_t index, bool* result); NAPI_EXTERN napi_status 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_is_array(napi_env env, napi_value value, bool* result); NAPI_EXTERN napi_status napi_get_array_length(napi_env env, napi_value value, uint32_t* result); // Methods to compare values NAPI_EXTERN napi_status napi_strict_equals(napi_env env, napi_value lhs, napi_value rhs, bool* result); // Methods to work with Functions NAPI_EXTERN napi_status 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_new_instance(napi_env env, napi_value constructor, size_t argc, const napi_value* argv, napi_value* result); NAPI_EXTERN napi_status 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_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_get_new_target(napi_env env, napi_callback_info cbinfo, napi_value* result); NAPI_EXTERN napi_status 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_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_unwrap(napi_env env, napi_value js_object, void** result); NAPI_EXTERN napi_status napi_remove_wrap(napi_env env, napi_value js_object, void** result); NAPI_EXTERN napi_status napi_create_external(napi_env env, void* data, napi_finalize finalize_cb, void* finalize_hint, napi_value* result); NAPI_EXTERN napi_status 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_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_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_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_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_get_reference_value(napi_env env, napi_ref ref, napi_value* result); NAPI_EXTERN napi_status napi_open_handle_scope(napi_env env, napi_handle_scope* result); NAPI_EXTERN napi_status napi_close_handle_scope(napi_env env, napi_handle_scope scope); NAPI_EXTERN napi_status napi_open_escapable_handle_scope(napi_env env, napi_escapable_handle_scope* result); NAPI_EXTERN napi_status napi_close_escapable_handle_scope(napi_env env, napi_escapable_handle_scope scope); NAPI_EXTERN napi_status 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_throw(napi_env env, napi_value error); NAPI_EXTERN napi_status napi_throw_error(napi_env env, const char* code, const char* msg); NAPI_EXTERN napi_status napi_throw_type_error(napi_env env, const char* code, const char* msg); NAPI_EXTERN napi_status napi_throw_range_error(napi_env env, const char* code, const char* msg); NAPI_EXTERN napi_status napi_is_error(napi_env env, napi_value value, bool* result); // Methods to support catching exceptions NAPI_EXTERN napi_status napi_is_exception_pending(napi_env env, bool* result); NAPI_EXTERN napi_status 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_is_arraybuffer(napi_env env, napi_value value, bool* result); NAPI_EXTERN napi_status napi_create_arraybuffer(napi_env env, size_t byte_length, void** data, napi_value* result); NAPI_EXTERN napi_status napi_create_external_arraybuffer(napi_env env, void* external_data, size_t byte_length, napi_finalize finalize_cb, void* finalize_hint, napi_value* result); NAPI_EXTERN napi_status napi_get_arraybuffer_info(napi_env env, napi_value arraybuffer, void** data, size_t* byte_length); NAPI_EXTERN napi_status napi_is_typedarray(napi_env env, napi_value value, bool* result); NAPI_EXTERN napi_status 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_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_create_dataview(napi_env env, size_t length, napi_value arraybuffer, size_t byte_offset, napi_value* result); NAPI_EXTERN napi_status napi_is_dataview(napi_env env, napi_value value, bool* result); NAPI_EXTERN napi_status 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_get_version(napi_env env, uint32_t* result); // Promises NAPI_EXTERN napi_status napi_create_promise(napi_env env, napi_deferred* deferred, napi_value* promise); NAPI_EXTERN napi_status napi_resolve_deferred(napi_env env, napi_deferred deferred, napi_value resolution); NAPI_EXTERN napi_status napi_reject_deferred(napi_env env, napi_deferred deferred, napi_value rejection); NAPI_EXTERN napi_status napi_is_promise(napi_env env, napi_value promise, bool* is_promise); // Running a script NAPI_EXTERN napi_status napi_run_script(napi_env env, napi_value script, napi_value* result); // Memory management NAPI_EXTERN napi_status napi_adjust_external_memory(napi_env env, int64_t change_in_bytes, int64_t* adjusted_value); #ifdef NAPI_EXPERIMENTAL // Dates NAPI_EXTERN napi_status napi_create_date(napi_env env, double time, napi_value* result); NAPI_EXTERN napi_status napi_is_date(napi_env env, napi_value value, bool* is_date); NAPI_EXTERN napi_status napi_get_date_value(napi_env env, napi_value value, double* result); // BigInt NAPI_EXTERN napi_status napi_create_bigint_int64(napi_env env, int64_t value, napi_value* result); NAPI_EXTERN napi_status napi_create_bigint_uint64(napi_env env, uint64_t value, napi_value* result); NAPI_EXTERN napi_status 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_get_value_bigint_int64(napi_env env, napi_value value, int64_t* result, bool* lossless); NAPI_EXTERN napi_status napi_get_value_bigint_uint64(napi_env env, napi_value value, uint64_t* result, bool* lossless); NAPI_EXTERN napi_status napi_get_value_bigint_words(napi_env env, napi_value value, int* sign_bit, size_t* word_count, uint64_t* words); NAPI_EXTERN napi_status napi_add_finalizer(napi_env env, napi_value js_object, void* native_object, napi_finalize finalize_cb, void* finalize_hint, napi_ref* result); #endif // NAPI_EXPERIMENTAL EXTERN_C_END #endif // SRC_JS_NATIVE_API_H_