jsvm_types.h

Overview

Defines JSVM-API types. JSVM-API is used to provide independent, standard, and complete JS engine capabilities, including managing the engine lifecycle, compiling and running JS code, implementing JS/C++ cross-language calls, and taking snapshots.

File to import: <ark_runtime/jsvm_types.h>

Library: libjsvm.so

System capability: SystemCapability.ArkCompiler.JSVM

Since: 11

Related module: JSVM

Summary

Structs

Name	typedef Keyword	Description
JSVM_CallbackStruct	JSVM_CallbackStruct	Defines the pointer to the data of the native callbacks provided by the user. These functions are exposed to JavaScript via JSVM-API.
JSVM_HeapStatistics	JSVM_HeapStatistics	Stores statistics about JavaScript heap memory usage.
JSVM_InitOptions	JSVM_InitOptions	Defines options for initializing a JavaScript VM.
JSVM_CreateVMOptions	JSVM_CreateVMOptions	Defines options for creating a JavaScript VM.
JSVM_VMInfo	JSVM_VMInfo	Defines JavaScript VM information.
JSVM_PropertyDescriptor	JSVM_PropertyDescriptor	Defines property descriptor.
JSVM_ExtendedErrorInfo	JSVM_ExtendedErrorInfo	Defines extended error information.
JSVM_TypeTag	JSVM_TypeTag	Defines the type tag, which is stored as a 128-bit value of two unsigned 64-bit integers. As a UUID, it can tag JavaScript objects to ensure that their types remain unchanged.
JSVM_PropertyHandlerConfigurationStruct	JSVM_PropertyHandlerConfigurationStruct	Defines a struct for triggering the corresponding callback when the getter, setter, deleter, or enumerator of an object is executed.
JSVM_ScriptOrigin	JSVM_ScriptOrigin	Defines the original information about a JavaScript code segment, such as the source map path, source file name, and start line/column number in the source file.
JSVM_CompileOptions	JSVM_CompileOptions	JSVM compilation options, which includes the content and ID.
JSVM_CodeCache	JSVM_CodeCache	Address and size of the JSVM code cache.
JSVM_PropertyHandler	JSVM_PropertyHandler	Defines the pointer to the callback function triggered when a class is called as a function, and the pointer collection of the callback function triggered when an instance object property is accessed.
JSVM_DefineClassOptions	JSVM_DefineClassOptions	Defines class options.
JSVM_VM__*	JSVM_VM	Defines a JavaScript VM instance.
JSVM_VMScope__*	JSVM_VMScope	Defines the JavaScript VM scope.
JSVM_EnvScope__*	JSVM_EnvScope	Defines the environment scope of the current VM instance. The environment is available to the VM instance of the thread only after the thread enters JSVM_EnvScope of the environment through OH_JSVM_OpenEnvScope.
JSVM_Script__*	JSVM_Script	Defines the JavaScript code.
JSVM_Env__*	JSVM_Env	Defines the context of a specific VM state. It needs to be passed as a parameter when the native function is called and passed to any subsequent JSVM-API nested call.
JSVM_CpuProfiler__*	JSVM_CpuProfiler	Defines a JavaScript CPU profiler.
JSVM_Value__*	JSVM_Value	Defines the JavaScript value.
JSVM_Data__*	JSVM_Data	Defines the JavaScript data.
JSVM_Ref__*	JSVM_Ref	Defines the reference to the JavaScript value.
JSVM_HandleScope__*	JSVM_HandleScope	Defines the scope of the JavaScript value. It is used to control and modify the lifecycle of an object created in a specific scope. Typically, the JSVM-API value is created in the context of JSVM_HandleScope. When the native method is called from JavaScript, the default JSVM_HandleScope exists. If the user does not explicitly create a new JSVM_HandleScope, the JSVM-API value is created in the default JSVM_HandleScope. For any code call other than native method execution (for example, libuv callback), the module needs to create a scope before calling any function that may create a JavaScript value. JSVM_HandleScope is created using OH_JSVM_OpenHandleScope and destroyed using OH_JSVM_CloseHandleScope. Closing the scope indicates to the GC that all JSVM_Values created during the lifecycle of JSVM_HandleScope will no longer be referenced from the stack frame of the current heap.
JSVM_EscapableHandleScope__*	JSVM_EscapableHandleScope	Defines a special type of handle scope, which is used to return the value created in a specific handle scope to the parent scope.
JSVM_CallbackInfo__*	JSVM_CallbackInfo	Defines an opaque data type passed to the callback. It can be used to obtain additional information about the context in which the function is called.
JSVM_Deferred__*	JSVM_Deferred	Defines the deferred object.
JSVM_PropertyHandlerConfigurationStruct*	JSVM_PropertyHandlerCfg	Defines the pointer type of the struct that contains the property handler.
JSVM_CallbackStruct*	JSVM_Callback	Defines the pointer types of the native functions provided by user. These functions are exposed to JavaScript via JSVM-API.
JSVM_CompileProfile	JSVM_CompileProfile	Defines the compilation sampling file transferred together with JSVM_COMPILE_COMPILE_PROFILE.

Enums

Name	typedef Keyword	Description
JSVM_PropertyAttributes	JSVM_PropertyAttributes	Enumerates the behaviors of controlling JavaScript object properties.
JSVM_ValueType	JSVM_ValueType	Enumerates JSVM_Value types.
JSVM_TypedarrayType	JSVM_TypedarrayType	Enumerates TypedArray types.
JSVM_Status	JSVM_Status	Enumerates complete status codes indicating whether the JSVM-API call is successful or failed.
JSVM_KeyCollectionMode	JSVM_KeyCollectionMode	Enumerates ranges of properties to be searched for.
JSVM_KeyFilter	JSVM_KeyFilter	Enumerates key filters. You can use OR to construct a composite filter.
JSVM_KeyConversion	JSVM_KeyConversion	Enumerates key conversion options.
JSVM_MemoryPressureLevel	JSVM_MemoryPressureLevel	Enumerates memory pressure levels.
JSVM_CompileMode	JSVM_CompileMode	JSVM compilation mode.
JSVM_CompileOptionId	JSVM_CompileOptionId	ID of a JSVM compilation option.
JSVM_RegExpFlags	JSVM_RegExpFlags	Enumerates regular expression flags. They can be used to enable a set of flags.
JSVM_InitializedFlag	JSVM_InitializedFlag	Enumerates the initialization modes of flags.
JSVM_WasmOptLevel	JSVM_WasmOptLevel	Enumerates WebAssembly optimization levels.
JSVM_CacheType	JSVM_CacheType	Enumerates cache types.
JSVM_MicrotaskPolicy	JSVM_MicrotaskPolicy	Enumerates JSVM microtask execution policies.
JSVM_TraceCategory	JSVM_TraceCategory	Enumerates categories of the JSVM internal trace events.
JSVM_CBTriggerTimeForGC	JSVM_CBTriggerTimeForGC	Enumerates the timings when the callback is triggered.
JSVM_GCType	JSVM_GCType	Enumerates GC types.
JSVM_GCCallbackFlags	JSVM_GCCallbackFlags	Enumerates GC callback flags.
JSVM_PromiseRejectEvent	JSVM_PromiseRejectEvent	Enumerates reject events for a promise.
JSVM_MessageErrorLevel	JSVM_MessageErrorLevel	Enumerates error message levels.
JSVM_DefineClassOptionsId	JSVM_DefineClassOptionsId	Enumerates definition modes for a class.
JSVM_DebugOption	JSVM_DebugOption	Enumerates debugging options.

Functions

Name	typedef Keyword	Description
typedef void (JSVM_CDECL* JSVM_Finalize)(JSVM_Env env,void* finalizeData,void* finalizeHint)	JSVM_CDECL* JSVM_Finalize	Defines a pointer to the JSVM_Finalize function. It is passed in when a native object or data is associated with a JavaScript object, and is called when the associated JavaScript object is reclaimed by the GC to execute the native cleanup action.
typedef bool (JSVM_CDECL* JSVM_OutputStream)(const char* data,int size,void* streamData)	JSVM_CDECL* JSVM_OutputStream	Defines a pointer to the callback of the ASCII output stream. data indicates the pointer to the output data. size indicates the size of the output data. void is a null pointer that points to the end of the stream. streamData indicates the pointer passed to the API function together with the callback. The API function generates data to the output stream.
typedef void (JSVM_CDECL* JSVM_HandlerForGC)(JSVM_VM vm, JSVM_GCType gcType, JSVM_GCCallbackFlags flags, void* data)	JSVM_CDECL* JSVM_HandlerForGC	Defines a pointer to the handler for GC callback.
typedef void (JSVM_CDECL* JSVM_HandlerForOOMError)(const char* location,const char* detail,bool isHeapOOM)	JSVM_CDECL* JSVM_HandlerForOOMError	Defines a pointer to the handler for OOM-Error callback.
typedef void (JSVM_CDECL* JSVM_HandlerForFatalError)(const char* location,const char* message)	JSVM_CDECL* JSVM_HandlerForFatalError	Defines a pointer to the handler for Fatal-Error callback.
typedef void (JSVM_CDECL* JSVM_HandlerForPromiseReject)(JSVM_Env env, JSVM_PromiseRejectEvent rejectEvent, JSVM_Value rejectInfo)	JSVM_CDECL* JSVM_HandlerForPromiseReject	Defines a pointer to the handler for Promise-Reject callback.

Variables

Name	typedef Keyword	Description
uint16_t	char16_t	Create an alias, char16_t, for uint16_t. This code ensures that the char16_t type is available in all target compilation environments, even in some old environments that do not support it. char16_t is a new basic data type introduced in C++11. It is used to store 16-bit characters and represent UTF-16-encoded characters. If the compiler does not recognize char16_t, manually define a custom type whose underlying implementation is a 16-bit unsigned integer. Prerequisite: The current compiler is not a C++ compiler.||It is a Microsoft Visual C++ compiler with a version earlier than Visual Studio 2015 (exclusive).

Enum Description

JSVM_PropertyAttributes

enum JSVM_PropertyAttributes

Description

Enumerates the behaviors of controlling JavaScript object properties.

Since: 11

Enum Item	Description
JSVM_DEFAULT = 0	No explicit attribute set on the property.
JSVM_WRITABLE = 1 << 0	Writable property.
JSVM_ENUMERABLE = 1 << 1	Enumerable property.
JSVM_CONFIGURABLE = 1 << 2	Configurable property.
JSVM_NO_RECEIVER_CHECK = 1 << 3	Receiver used to mark the local methods does not need to be checked. If JSVM_NO_RECEIVER_CHECK is not set, the method accepts only the instance of the defined class as the receiver. Otherwise, an exception "TypeError: illegal call" is thrown to the JSVM.
JSVM_STATIC = 1 << 10	Static property of the class, instead of the default instance property. Used only by OH_JSVM_DefineClass.
JSVM_DEFAULT_METHOD = JSVM_WRITABLE |JSVM_CONFIGURABLE	Configurable, writable, but not enumerable property, like a method of a JavaScript class.
JSVM_METHOD_NO_RECEIVER_CHECK = JSVM_DEFAULT_METHOD |JSVM_NO_RECEIVER_CHECK	Class method whose receiver does not need to be checked.
JSVM_DEFAULT_JSPROPERTY = JSVM_WRITABLE |JSVM_ENUMERABLE |JSVM_CONFIGURABLE	Writable, enumerable, and configurable property, like a property set by value assignment in JavaScript.
JSVM_JSPROPERTY_NO_RECEIVER_CHECK = JSVM_DEFAULT_JSPROPERTY |JSVM_NO_RECEIVER_CHECK	Object property whose receiver does not need to be checked.

JSVM_ValueType

enum JSVM_ValueType

Description

Enumerates JSVM_Value types.

Since: 11

Enum Item	Description
JSVM_UNDEFINED	Undefined.
JSVM_NULL	Null.
JSVM_BOOLEAN	Boolean.
JSVM_NUMBER	Number.
JSVM_STRING	String.
JSVM_SYMBOL	Symbol.
JSVM_OBJECT	Object.
JSVM_FUNCTION	Function.
JSVM_EXTERNAL	External.
JSVM_BIGINT	BigInt.

JSVM_TypedarrayType

enum JSVM_TypedarrayType

Description

Enumerates TypedArray types.

Since: 11

Enum Item	Description
JSVM_INT8_ARRAY	int8 type.
JSVM_UINT8_ARRAY	uint8 type.
JSVM_UINT8_CLAMPED_ARRAY	Fixed uint8 type.
JSVM_INT16_ARRAY	int16 type.
JSVM_UINT16_ARRAY	uint16 type.
JSVM_INT32_ARRAY	int32 type.
JSVM_UINT32_ARRAY	uint32 type.
JSVM_FLOAT32_ARRAY	float32 type.
JSVM_FLOAT64_ARRAY	float64 type.
JSVM_BIGINT64_ARRAY	bigint64 type.
JSVM_BIGUINT64_ARRAY	biguint64 type.

JSVM_Status

enum JSVM_Status

Description

Enumerates complete status codes indicating whether the JSVM-API call is successful or failed.

Since: 11

Enum Item	Description
JSVM_OK	Successful.
JSVM_INVALID_ARG	Invalid argument.
JSVM_OBJECT_EXPECTED	Object expected.
JSVM_STRING_EXPECTED	String expected.
JSVM_NAME_EXPECTED	Name expected.
JSVM_FUNCTION_EXPECTED	Function expected.
JSVM_NUMBER_EXPECTED	Number expected.
JSVM_BOOLEAN_EXPECTED	Boolean expected.
JSVM_ARRAY_EXPECTED	Array expected.
JSVM_GENERIC_FAILURE	Generic failure.
JSVM_PENDING_EXCEPTION	Pending exception.
JSVM_CANCELLED	Canceled.
JSVM_ESCAPE_CALLED_TWICE	Escape called twice.
JSVM_HANDLE_SCOPE_MISMATCH	Handle scope mismatch.
JSVM_CALLBACK_SCOPE_MISMATCH	Callback scope mismatch.
JSVM_QUEUE_FULL	Full queue.
JSVM_CLOSING	Closing.
JSVM_BIGINT_EXPECTED	BigInt expected.
JSVM_DATE_EXPECTED	Date expected.
JSVM_ARRAYBUFFER_EXPECTED	ArrayBuffer expected.
JSVM_DETACHABLE_ARRAYBUFFER_EXPECTED	Detachable array buffer expected.
JSVM_WOULD_DEADLOCK	Would be in deadlock.
JSVM_NO_EXTERNAL_BUFFERS_ALLOWED	No external buffers allowed.
JSVM_CANNOT_RUN_JS	Cannot run JavaSript.
JSVM_INVALID_TYPE	Invalid type. Since: 18
JSVM_JIT_MODE_EXPECTED	JIT mode expected. Since: 18

JSVM_KeyCollectionMode

enum JSVM_KeyCollectionMode

Description

Enumerates ranges of properties to be searched for.

Since: 11

Enum Item	Description
JSVM_KEY_INCLUDE_PROTOTYPES	Properties on the prototype chain of the object are included.
JSVM_KEY_OWN_ONLY	Only the object's own properties are included.

JSVM_KeyFilter

enum JSVM_KeyFilter

Description

Enumerates key filters. You can use OR to construct a composite filter.

Since: 11

Enum Item	Description
JSVM_KEY_ALL_PROPERTIES = 0	Key of all properties.
JSVM_KEY_WRITABLE = 1	Writable key.
JSVM_KEY_ENUMERABLE = 1 << 1	Enumerable key.
JSVM_KEY_CONFIGURABLE = 1 << 2	Configurable key.
JSVM_KEY_SKIP_STRINGS = 1 << 3	Key that skips strings.
JSVM_KEY_SKIP_SYMBOLS = 1 << 4	Key that skips symbols.

JSVM_KeyConversion

enum JSVM_KeyConversion

Description

Enumerates key conversion options.

Since: 11

Enum Item	Description
JSVM_KEY_KEEP_NUMBERS	Returns the numbers of integer indexes.
JSVM_KEY_NUMBERS_TO_STRINGS	Converts integer indexes to strings.

JSVM_MemoryPressureLevel

enum JSVM_MemoryPressureLevel

Description

Enumerates memory pressure levels.

Since: 11

Enum Item	Description
JSVM_MEMORY_PRESSURE_LEVEL_NONE	No pressure.
JSVM_MEMORY_PRESSURE_LEVEL_MODERATE	Moderate pressure.
JSVM_MEMORY_PRESSURE_LEVEL_CRITICAL	Critical pressure.
JSVM_MEMORY_PRESSURE_LEVEL_LOW_MEMORY	The system is notified that the memory is insufficient and garbage collection is triggered immediately. Since: 22

JSVM_CompileMode

enum JSVM_CompileMode

Description

Defines an enum for the compilation modes when id is JSVM_COMPILE_MODE.

Since: 12

Enum Item	Description
JSVM_COMPILE_MODE_DEFAULT	Default compilation mode.
JSVM_COMPILE_MODE_CONSUME_CODE_CACHE	Mode that consumes the code cache.
JSVM_COMPILE_MODE_EAGER_COMPILE	Eager compilation mode.
JSVM_COMPILE_MODE_PRODUCE_COMPILE_PROFILE	Mode that generates the compilation profile.
JSVM_COMPILE_MODE_CONSUME_COMPILE_PROFILE	Mode that consumes the compilation profile.

JSVM_CompileOptionId

enum JSVM_CompileOptionId

Description

Defines an enum for id in JSVM_CompileOptions. Each id corresponds to a content value. The value JSVM_COMPILE_ENABLE_SOURCE_MAP is a Boolean, and is valid only when sourceMapUrl in JSVM_ScriptOrigin is not empty.

Since: 12

Enum Item	Description
JSVM_COMPILE_MODE	JSVM compilation mode.
JSVM_COMPILE_CODE_CACHE	JSVM code cache.
JSVM_COMPILE_SCRIPT_ORIGIN	JSVM script origin.
JSVM_COMPILE_COMPILE_PROFILE	JSVM compilation profile.
JSVM_COMPILE_ENABLE_SOURCE_MAP	Source map enablement status of JSVM.

JSVM_RegExpFlags

enum JSVM_RegExpFlags

Description

Enumerates regular expression flags. They can be used to enable a set of flags.

Since: 12

Enum Item	Description
JSVM_REGEXP_NONE = 0	None mode.
JSVM_REGEXP_GLOBAL = 1 << 0	Global mode.
JSVM_REGEXP_IGNORE_CASE = 1 << 1	Ignore Case mode.
JSVM_REGEXP_MULTILINE = 1 << 2	Multiline mode.
JSVM_REGEXP_STICKY = 1 << 3	Sticky mode.
JSVM_REGEXP_UNICODE = 1 << 4	Unicode mode.
JSVM_REGEXP_DOT_ALL = 1 << 5	dotAll mode.
JSVM_REGEXP_LINEAR = 1 << 6	Linear mode.
JSVM_REGEXP_HAS_INDICES = 1 << 7	Has Indices mode.
JSVM_REGEXP_UNICODE_SETS = 1 << 8	Unicode Sets mode.

JSVM_InitializedFlag

enum JSVM_InitializedFlag

Description

Enumerates the initialization modes of flags.

Since: 12

Enum Item	Description
JSVM_ZERO_INITIALIZED	Flags are initialized to 0.
JSVM_UNINITIALIZED	No initialization.

JSVM_WasmOptLevel

enum JSVM_WasmOptLevel

Description

Enumerates WebAssembly optimization levels.

Since: 12

Enum Item	Description
JSVM_WASM_OPT_BASELINE = 10	Baseline optimization level.
JSVM_WASM_OPT_HIGH = 20	High optimization level.

JSVM_CacheType

enum JSVM_CacheType

Description

Enumerates cache types.

Since: 12

Enum Item	Description
JSVM_CACHE_TYPE_JS	JavaScript cache, which is generated by OH_JSVM_CreateCodeCache.
JSVM_CACHE_TYPE_WASM	WebAssembly cache, which is generated by OH_JSVM_CreateWasmCache.

JSVM_MicrotaskPolicy

enum JSVM_MicrotaskPolicy

Description

Enumerates JSVM microtask execution policies.

Since: 18

Enum Item	Description
JSVM_MICROTASK_EXPLICIT = 0	Microtasks are executed after the OH_JSVM_PerformMicrotaskCheckpoint method is called.
JSVM_MICROTASK_AUTO	Microtasks are automatically executed when the JS call stack is 0. This policy is used by default.

JSVM_TraceCategory

enum JSVM_TraceCategory

Description

Enumerates categories of the JSVM internal trace events.

Since: 18

Enum Item	Description
JSVM_TRACE_VM	Collects the calls of main JSVM APIs, for example, executing JS scripts.
JSVM_TRACE_COMPILE	Collects the calls of compilation APIs, for example, background compilation.
JSVM_TRACE_EXECUTE	Collects the calls of APIs related to the running status, for example, task interruption and microtasks.
JSVM_TRACE_RUNTIME	Collects information about the external function calls.
JSVM_TRACE_STACK_TRACE	Collects stack trace information from the JSVM.
JSVM_TRACE_WASM	Collects the calls of main WASM APIs, for example, compiling and instantiating WASM modules.
JSVM_TRACE_WASM_DETAILED	Collects detailed WASM API calls, for example, background compilation and jumpboard compilation.

JSVM_CBTriggerTimeForGC

enum JSVM_CBTriggerTimeForGC

Description

Enumerates the timings when the callback is triggered.

Since: 18

Enum Item	Description
JSVM_CB_TRIGGER_BEFORE_GC	A callback function is triggered before GC.
JSVM_CB_TRIGGER_AFTER_GC	A callback function is triggered after GC.

JSVM_GCType

enum JSVM_GCType

Description

Enumerates GC types.

Since: 18

Enum Item	Description
JSVM_GC_TYPE_SCAVENGE = 1 << 0	The GC algorithm is Scavenge.
JSVM_GC_TYPE_MINOR_MARK_COMPACT = 1 << 1	The GC algorithm is Minor-Mark-Compact.
JSVM_GC_TYPE_MARK_SWEEP_COMPACT = 1 << 2	The GC algorithm is Mark-Sweep-Compact.
JSVM_GC_TYPE_INCREMENTAL_MARKING = 1 << 3	The GC algorithm is Incremental-Marking.
JSVM_GC_TYPE_PROCESS_WEAK_CALLBACKS = 1 << 4	The GC algorithm is Weak-Callbacks.
JSVM_GC_TYPE_ALL = JSVM_GC_TYPE_SCAVENGE |JSVM_GC_TYPE_MINOR_MARK_COMPACT |JSVM_GC_TYPE_MARK_SWEEP_COMPACT |JSVM_GC_TYPE_INCREMENTAL_MARKING |JSVM_GC_TYPE_PROCESS_WEAK_CALLBACKS	All types of GC algorithms are included.

JSVM_GCCallbackFlags

enum JSVM_GCCallbackFlags

Description

Enumerates GC callback flags.

Since: 18

Enum Item	Description
JSVM_NO_GC_CALLBACK_FLAGS	No callback flag.
JSVM_GC_CALLBACK_CONSTRUCT_RETAINED_OBJECT_INFOS	Builds reserved object information in the GC callback.
JSVM_GC_CALLBACK_FORCED	Forcibly executes the GC callback.
JSVM_GC_CALLBACK_SYNCHRONOUS_PHANTOM_CALLBACK_PROCESSING	Synchronously processes ghost object callbacks.
JSVM_GC_CALLBACK_COLLECT_ALL_AVAILABLE_GARBAGE	Collects all available garbage objects during GC.
JSVM_GC_CALLBACK_COLLECT_ALL_EXTERNAL_MEMORY	Collects all external memory during GC.
JSVM_GC_CALLBACK_SCHEDULE_IDLE_GARBAGE_COLLECTION	Schedules GC when idle.

JSVM_PromiseRejectEvent

enum JSVM_PromiseRejectEvent

Description

Enumerates reject events for a promise.

Since: 18

Enum Item	Description
JSVM_PROMISE_REJECT_OTHER_REASONS = 0	A promise is rejected, but the rejection reason is unknown or unclear.
JSVM_PROMISE_REJECT_WITH_NO_HANDLER = 1	A promise is rejected but no handler is available.
JSVM_PROMISE_ADD_HANDLER_AFTER_REJECTED = 2	A handler is added after a promise is rejected.
JSVM_PROMISE_REJECT_AFTER_RESOLVED = 3	Attempts to reject a promise after this promise is resolved.
JSVM_PROMISE_RESOLVE_AFTER_RESOLVED = 4	Attempts to resolve a promise after this promise is resolved.

JSVM_MessageErrorLevel

enum JSVM_MessageErrorLevel

Description

Enumerates error message levels.

Since: 18

Enum Item	Description
JSVM_MESSAGE_LOG = (1 << 0)	Logs.
JSVM_MESSAGE_DEBUG = (1 << 1)	Debugging messages.
JSVM_MESSAGE_INFO = (1 << 2)	Information.
JSVM_MESSAGE_ERROR = (1 << 3)	Errors.
JSVM_MESSAGE_WARNING = (1 << 4)	Warnings.
JSVM_MESSAGE_ALL = JSVM_MESSAGE_LOG |JSVM_MESSAGE_DEBUG |JSVM_MESSAGE_INFO |JSVM_MESSAGE_ERROR |JSVM_MESSAGE_WARNING	Information of all levels.

JSVM_DefineClassOptionsId

enum JSVM_DefineClassOptionsId

Description

Enumerates definition modes for a class.

Since: 18

Enum Item	Description
JSVM_DEFINE_CLASS_NORMAL	Defines a class in normal mode.
JSVM_DEFINE_CLASS_WITH_COUNT	Reserves a specified number of interfield slots for the created class. Native data can be stored in these slots.
JSVM_DEFINE_CLASS_WITH_PROPERTY_HANDLER	Sets a listener property for the created class and sets a callback to be invoked when it is called as a function.

JSVM_DebugOption

enum JSVM_DebugOption

Description

Enumerates debugging options.

Since: 20

Enum Item	Description
JSVM_SCOPE_CHECK	Scope check.

Function Description

JSVM_Finalize()

typedef void (JSVM_CDECL* JSVM_Finalize)(JSVM_Env env,void* finalizeData,void* finalizeHint)

Description

Defines a pointer to the JSVM_Finalize function. It is passed in when a native object or data is associated with a JavaScript object, and is called when the associated JavaScript object is reclaimed by the GC to execute the native cleanup action.

Since: 11

JSVM_OutputStream()

typedef bool (JSVM_CDECL* JSVM_OutputStream)(const char* data,int size,void* streamData)

Description

Defines a pointer to the callback of the ASCII output stream. data indicates the pointer to the output data. size indicates the size of the output data. void is a null pointer that points to the end of the stream. streamData indicates the pointer passed to the API function together with the callback. The API function generates data to the output stream.

Since: 12

Returns

Type	Description
bool	Returns true if the stream can continue to receive data; returns false if the stream is closed.

JSVM_HandlerForGC()

typedef void (JSVM_CDECL* JSVM_HandlerForGC)(JSVM_VM vm, JSVM_GCType gcType, JSVM_GCCallbackFlags flags, void* data)

Description

Defines a pointer to the handler for GC callback.

Since: 18

JSVM_HandlerForOOMError()

typedef void (JSVM_CDECL* JSVM_HandlerForOOMError)(const char* location,const char* detail,bool isHeapOOM)

Description

Defines a pointer to the handler for OOM-Error callback.

Since: 18

JSVM_HandlerForFatalError()

typedef void (JSVM_CDECL* JSVM_HandlerForFatalError)(const char* location,const char* message)

Description

Defines a pointer to the handler for Fatal-Error callback.

Since: 18

JSVM_HandlerForPromiseReject()

typedef void (JSVM_CDECL* JSVM_HandlerForPromiseReject)(JSVM_Env env, JSVM_PromiseRejectEvent rejectEvent, JSVM_Value rejectInfo)

Description

Defines a pointer to the handler for Promise-Reject callback.

Since: 18

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