runtime/include/dart_api.h - Issue 15689013: - Modify dart_api.h to be a proper C API.

Unified Diff: runtime/include/dart_api.h

Issue 15689013: - Modify dart_api.h to be a proper C API. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/

Patch Set: Created 7 years, 7 months ago

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Index: runtime/include/dart_api.h

===================================================================

--- runtime/include/dart_api.h (revision 23447)

+++ runtime/include/dart_api.h (working copy)

@@ -1,6 +1,8 @@

-// BSD-style license that can be found in the LICENSE file.

+/*

+ * BSD-style license that can be found in the LICENSE file.

+ */

#ifndef INCLUDE_DART_API_H_

#define INCLUDE_DART_API_H_

@@ -38,8 +40,8 @@

#define DART_EXPORT DART_EXTERN_C

#endif

#else

-// __STDC_FORMAT_MACROS has to be defined before including <inttypes.h> to

-// enable platform independent printf format specifiers.

+/* __STDC_FORMAT_MACROS has to be defined before including <inttypes.h> to

+ * enable platform independent printf format specifiers. */

#ifndef __STDC_FORMAT_MACROS

#define __STDC_FORMAT_MACROS

#endif

@@ -58,7 +60,7 @@

#include <assert.h>

-// --- Handles ---

+/* --- Handles --- */

/**

* An object reference managed by the Dart VM garbage collector.

@@ -283,8 +285,8 @@

DART_EXPORT Dart_Handle Dart_NewUnhandledExceptionError(Dart_Handle exception);

-// Deprecated.

-// TODO(turnidge): Remove all uses and delete.

+/* Deprecated. */

+/* TODO(turnidge): Remove all uses and delete. */

DART_EXPORT Dart_Handle Dart_Error(const char* format, ...);

/**

@@ -314,17 +316,17 @@

* error handle is returned.

DART_EXPORT Dart_Handle Dart_PropagateError(Dart_Handle handle);

-// TODO(turnidge): Should this really return an error handle?

-// Consider just terminating.

+/* TODO(turnidge): Should this really return an error handle? */

+/* Consider just terminating. */

-// Internal routine used for reporting error handles.

+/* Internal routine used for reporting error handles. */

DART_EXPORT void _Dart_ReportErrorHandle(const char* file,

int line,

const char* handle_string,

const char* error);

-// TODO(turnidge): Move DART_CHECK_VALID to some sort of dart_utils

-// header instead of this header.

+/* TODO(turnidge): Move DART_CHECK_VALID to some sort of dart_utils

+ * header instead of this header. */

/**

* Aborts the process if 'handle' is an error handle.

@@ -476,7 +478,7 @@

Dart_WeakPersistentHandle* values,

intptr_t num_values);

-// --- Garbage Collection Callbacks ---

+/* --- Garbage Collection Callbacks --- */

/**

* Callbacks signal the beginning and end of a garbage collection.

@@ -546,7 +548,7 @@

DART_EXPORT Dart_Handle Dart_RemoveGcEpilogueCallback(

Dart_GcEpilogueCallback callback);

-// --- Initialization and Globals ---

+/* --- Initialization and Globals --- */

/**

* Gets the version string for the Dart VM.

@@ -627,7 +629,7 @@

* unwound (currently unimplemented).

typedef bool (*Dart_IsolateInterruptCallback)();

-// TODO(turnidge): Define and implement unwinding.

+/* TODO(turnidge): Define and implement unwinding. */

/**

* An isolate unhandled exception callback function.

@@ -737,7 +739,7 @@

DART_EXPORT bool Dart_IsVMFlagSet(const char* flag_name);

-// --- Isolates ---

+/* --- Isolates --- */

/**

* Creates a new isolate. The new isolate becomes the current isolate.

@@ -767,8 +769,8 @@

const uint8_t* snapshot,

void* callback_data,

char** error);

-// TODO(turnidge): Document behavior when there is already a current

-// isolate.

+/* TODO(turnidge): Document behavior when there is already a current

+ * isolate. */

/**

* Shuts down the current isolate. After this call, the current

@@ -777,7 +779,7 @@

* Requires there to be a current isolate.

DART_EXPORT void Dart_ShutdownIsolate();

-// TODO(turnidge): Document behavior when there is no current isolate.

+/* TODO(turnidge): Document behavior when there is no current isolate. */

/**

* Returns the current isolate. Will return NULL if there is no

@@ -806,9 +808,9 @@

* Requires there to be no current isolate.

DART_EXPORT void Dart_EnterIsolate(Dart_Isolate isolate);

-// TODO(turnidge): Describe what happens if two threads attempt to

-// enter the same isolate simultaneously. Check for this in the code.

-// Describe whether isolates are allowed to migrate.

+/* TODO(turnidge): Describe what happens if two threads attempt to

+ * enter the same isolate simultaneously. Check for this in the code.

+ * Describe whether isolates are allowed to migrate. */

/**

* Exits an isolate. After this call, Dart_CurrentIsolate will

@@ -817,8 +819,8 @@

* Requires there to be a current isolate.

DART_EXPORT void Dart_ExitIsolate();

-// TODO(turnidge): We don't want users of the api to be able to exit a

-// "pure" dart isolate. Implement and document.

+/* TODO(turnidge): We don't want users of the api to be able to exit a

+ * "pure" dart isolate. Implement and document. */

/**

* Creates a full snapshot of the current isolate heap.

@@ -887,7 +889,7 @@

DART_EXPORT bool Dart_IsolateMakeRunnable(Dart_Isolate isolate);

-// --- Messages and Ports ---

+/* --- Messages and Ports --- */

/**

* A port is used to send or receive inter-isolate messages

@@ -921,8 +923,8 @@

DART_EXPORT void Dart_SetMessageNotifyCallback(

Dart_MessageNotifyCallback message_notify_callback);

-// TODO(turnidge): Consider moving this to isolate creation so that it

-// is impossible to mess up.

+/* TODO(turnidge): Consider moving this to isolate creation so that it

+ * is impossible to mess up. */

/**

* Handles the next pending message for the current isolate.

@@ -950,7 +952,7 @@

* error handle is returned.

DART_EXPORT Dart_Handle Dart_RunLoop();

-// TODO(turnidge): Should this be removed from the public api?

+/* TODO(turnidge): Should this be removed from the public api? */

/**

* Gets the main port id for the current isolate.

@@ -977,141 +979,7 @@

DART_EXPORT bool Dart_Post(Dart_Port port_id, Dart_Handle object);

-// --- Message sending/receiving from native code ----

/**

- * A Dart_CObject is used for representing Dart objects as native C

- * data outside the Dart heap. These objects are totally detached from

- * the Dart heap. Only a subset of the Dart objects have a

- * representation as a Dart_CObject.

- *

- * The string encoding in the 'value.as_string' is UTF-8.

- *

- * All the different types from dart:typed_data are exposed as type

- * kTypedData. The specific type from dart:typed_data is in the type

- * field of the as_typed_data structure. The length in the

- * as_typed_data structure is always in bytes.

- */

-typedef struct _Dart_CObject {

- enum Type {

- kNull = 0,

- kBool,

- kInt32,

- kInt64,

- kBigint,

- kDouble,

- kString,

- kArray,

- kTypedData,

- kExternalTypedData,

- kUnsupported,

- kNumberOfTypes

- } type;

- enum TypedDataType {

- kInt8Array = 0,

- kUint8Array,

- kUint8ClampedArray,

- kInt16Array,

- kUint16Array,

- kInt32Array,

- kUint32Array,

- kInt64Array,

- kUint64Array,

- kFloat32Array,

- kFloat64Array,

- kNumberOfTypedDataTypes

- };

- union {

- bool as_bool;

- int32_t as_int32;

- int64_t as_int64;

- double as_double;

- char* as_string;

- char* as_bigint;

- struct {

- int length;

- struct _Dart_CObject** values;

- } as_array;

- struct {

- TypedDataType type;

- int length;

- uint8_t* values;

- } as_typed_data;

- struct {

- TypedDataType type;

- int length;

- uint8_t* data;

- void* peer;

- Dart_WeakPersistentHandleFinalizer callback;

- } as_external_typed_data;

- } value;

-} Dart_CObject;

-/**

- * Posts a message on some port. The message will contain the

- * Dart_CObject object graph rooted in 'message'.

- *

- * While the message is being sent the state of the graph of

- * Dart_CObject structures rooted in 'message' should not be accessed,

- * as the message generation will make temporary modifications to the

- * data. When the message has been sent the graph will be fully

- * restored.

- *

- * \param port_id The destination port.

- * \param message The message to send.

- *

- * \return True if the message was posted.

- */

-DART_EXPORT bool Dart_PostCObject(Dart_Port port_id, Dart_CObject* message);

-/**

- * A native message handler.

- *

- * This handler is associated with a native port by calling

- * Dart_NewNativePort.

- *

- * The message received is decoded into the message structure. The

- * lifetime of the message data is controlled by the caller. All the

- * data references from the message are allocated by the caller and

- * will be reclaimed when returning to it.

- */

-typedef void (*Dart_NativeMessageHandler)(Dart_Port dest_port_id,

- Dart_Port reply_port_id,

- Dart_CObject* message);

-/**

- * Creates a new native port. When messages are received on this

- * native port, then they will be dispatched to the provided native

- * message handler.

- *

- * \param name The name of this port in debugging messages.

- * \param handler The C handler to run when messages arrive on the port.

- * \param handle_concurrently Is it okay to process requests on this

- * native port concurrently?

- *

- * \return If successful, returns the port id for the native port. In

- * case of error, returns ILLEGAL_PORT.

- */

-DART_EXPORT Dart_Port Dart_NewNativePort(const char* name,

- Dart_NativeMessageHandler handler,

- bool handle_concurrently);

-// TODO(turnidge): Currently handle_concurrently is ignored.

-/**

- * Closes the native port with the given id.

- *

- * The port must have been allocated by a call to Dart_NewNativePort.

- *

- * \param native_port_id The id of the native port to close.

- *

- * \return Returns true if the port was closed successfully.

- */

-DART_EXPORT bool Dart_CloseNativePort(Dart_Port native_port_id);

-/**

* Returns a new SendPort with the provided port id.

DART_EXPORT Dart_Handle Dart_NewSendPort(Dart_Port port_id);

@@ -1123,7 +991,7 @@

DART_EXPORT Dart_Handle Dart_GetReceivePort(Dart_Port port_id);

-// --- Scopes ----

+/* --- Scopes ---- */

/**

* Enters a new scope.

@@ -1169,7 +1037,7 @@

DART_EXPORT uint8_t* Dart_ScopeAllocate(intptr_t size);

-// --- Objects ----

+/* --- Objects ---- */

/**

* Returns the null object.

@@ -1220,13 +1088,13 @@

Dart_Handle type,

bool* instanceof);

-// --- Instances ----

-// For the purposes of the embedding api, not all objects returned are

-// Dart language objects. Within the api, we use the term 'Instance'

-// to indicate handles which refer to true Dart language objects.

-//

-// TODO(turnidge): Reorganize the "Object" section above, pulling down

-// any functions that more properly belong here.

+/* --- Instances ----

+ * For the purposes of the embedding api, not all objects returned are

+ * Dart language objects. Within the api, we use the term 'Instance'

+ * to indicate handles which refer to true Dart language objects.

+ *

+ * TODO(turnidge): Reorganize the "Object" section above, pulling down

+ * any functions that more properly belong here. */

/**

* Does this handle refer to some Dart language object?

@@ -1243,14 +1111,14 @@

DART_EXPORT Dart_Handle Dart_InstanceGetClass(Dart_Handle instance);

-// --- Numbers ----

+/* --- Numbers ---- */

/**

* Is this object a Number?

DART_EXPORT bool Dart_IsNumber(Dart_Handle object);

-// --- Integers ----

+/* --- Integers ---- */

/**

* Is this object an Integer?

@@ -1340,7 +1208,7 @@

DART_EXPORT Dart_Handle Dart_IntegerToHexCString(Dart_Handle integer,

const char** value);

-// --- Booleans ----

+/* --- Booleans ---- */

/**

* Returns the True object.

@@ -1385,7 +1253,7 @@

DART_EXPORT Dart_Handle Dart_BooleanValue(Dart_Handle boolean_obj, bool* value);

-// --- Doubles ---

+/* --- Doubles --- */

/**

* Is this object a Double?

@@ -1412,7 +1280,7 @@

DART_EXPORT Dart_Handle Dart_DoubleValue(Dart_Handle double_obj, double* value);

-// --- Strings ---

+/* --- Strings --- */

/**

* Is this object a String?

@@ -1446,8 +1314,8 @@

* an error handle.

DART_EXPORT Dart_Handle Dart_NewStringFromCString(const char* str);

-// TODO(turnidge): Document what happens when we run out of memory

-// during this call.

+/* TODO(turnidge): Document what happens when we run out of memory

+ * during this call. */

/**

* Returns a String built from an array of UTF-8 encoded characters.

@@ -1639,7 +1507,7 @@

Dart_PeerFinalizer cback);

-// --- Lists ---

+/* --- Lists --- */

/**

* Is this object a List?

@@ -1717,23 +1585,23 @@

uint8_t* native_array,

intptr_t length);

-// --- Typed Data ---

+/* --- Typed Data --- */

typedef enum {

- kByteData = 0,

- kInt8,

- kUint8,

- kUint8Clamped,

- kInt16,

- kUint16,

- kInt32,

- kUint32,

- kInt64,

- kUint64,

- kFloat32,

- kFloat64,

- kFloat32x4,

- kInvalid

+ Dart_TypedData_kByteData = 0,

+ Dart_TypedData_kInt8,

+ Dart_TypedData_kUint8,

+ Dart_TypedData_kUint8Clamped,

+ Dart_TypedData_kInt16,

+ Dart_TypedData_kUint16,

+ Dart_TypedData_kInt32,

+ Dart_TypedData_kUint32,

+ Dart_TypedData_kInt64,

+ Dart_TypedData_kUint64,

+ Dart_TypedData_kFloat32,

+ Dart_TypedData_kFloat64,

+ Dart_TypedData_kFloat32x4,

+ Dart_TypedData_kInvalid

} Dart_TypedData_Type;

/**

@@ -1816,7 +1684,7 @@

DART_EXPORT Dart_Handle Dart_TypedDataReleaseData(Dart_Handle object);

-// --- Closures ---

+/* --- Closures --- */

/**

* Is this object a Closure?

@@ -1844,7 +1712,7 @@

int number_of_arguments,

Dart_Handle* arguments);

-// --- Classes and Interfaces ---

+/* --- Classes and Interfaces --- */

/**

* Is this a class handle?

@@ -1919,7 +1787,7 @@

DART_EXPORT Dart_Handle Dart_ClassGetFunctionTypeSignature(Dart_Handle clazz);

-// --- Function and Variable Declarations ---

+/* --- Function and Variable Declarations --- */

/**

* Returns a list of the names of all functions or methods declared in

@@ -2009,7 +1877,7 @@

DART_EXPORT Dart_Handle Dart_FunctionIsConstructor(Dart_Handle function,

bool* is_constructor);

-// TODO(turnidge): Document behavior for factory constructors too.

+/* TODO(turnidge): Document behavior for factory constructors too. */

/**

* Determines whether a function or method is a getter.

@@ -2185,9 +2053,9 @@

* argument is not a valid handle.

DART_EXPORT Dart_Handle Dart_TypeVariableUpperBound(Dart_Handle type_variable);

-// TODO(turnidge): Finish documentation.

+/* TODO(turnidge): Finish documentation. */

-// --- Constructors, Methods, and Fields ---

+/* --- Constructors, Methods, and Fields --- */

/**

* Invokes a constructor, creating a new object.

@@ -2237,7 +2105,7 @@

Dart_Handle name,

int number_of_arguments,

Dart_Handle* arguments);

-// TODO(turnidge): Document how to invoke operators.

+/* TODO(turnidge): Document how to invoke operators. */

/**

* Gets the value of a field.

@@ -2316,9 +2184,9 @@

int index,

intptr_t value);

-// --- Exceptions ----

-// TODO(turnidge): Remove these functions from the api and replace all

-// uses with Dart_NewUnhandledExceptionError.

+/* --- Exceptions ----

+ * TODO(turnidge): Remove these functions from the api and replace all

+ * uses with Dart_NewUnhandledExceptionError. */

/**

* Throws an exception.

@@ -2351,7 +2219,7 @@

DART_EXPORT Dart_Handle Dart_RethrowException(Dart_Handle exception,

Dart_Handle stacktrace);

-// --- Native functions ---

+/* --- Native functions --- */

/**

* The arguments to a native function.

@@ -2368,7 +2236,7 @@

DART_EXPORT Dart_Handle Dart_GetNativeArgument(Dart_NativeArguments args,

int index);

-// TODO(turnidge): Specify the behavior of an out-of-bounds access.

+/* TODO(turnidge): Specify the behavior of an out-of-bounds access. */

/**

* Gets the number of native arguments.

@@ -2398,20 +2266,20 @@

typedef Dart_NativeFunction (*Dart_NativeEntryResolver)(Dart_Handle name,

int num_of_arguments);

-// TODO(turnidge): Consider renaming to NativeFunctionResolver or

-// NativeResolver.

+/* TODO(turnidge): Consider renaming to NativeFunctionResolver or

+ * NativeResolver. */

-// --- Scripts and Libraries ---

-// TODO(turnidge): Finish documenting this section.

+/* --- Scripts and Libraries ---

+ * TODO(turnidge): Finish documenting this section. */

typedef enum {

- kLibraryTag = 0,

- kImportTag,

- kSourceTag,

- kCanonicalizeUrl

+ Dart_kLibraryTag = 0,

+ Dart_kImportTag,

+ Dart_kSourceTag,

+ Dart_kCanonicalizeUrl

} Dart_LibraryTag;

-// TODO(turnidge): Document.

+/* TODO(turnidge): Document. */

typedef Dart_Handle (*Dart_LibraryTagHandler)(Dart_LibraryTag tag,

Dart_Handle library,

Dart_Handle url);

@@ -2502,8 +2370,8 @@

DART_EXPORT Dart_Handle Dart_GetClass(Dart_Handle library,

Dart_Handle class_name);

-// TODO(turnidge): Consider returning Dart_Null() when the class is

-// not found to distinguish that from a true error case.

+/* TODO(turnidge): Consider returning Dart_Null() when the class is

+ * not found to distinguish that from a true error case. */

/**

* Returns the name of a library as declared in the #library directive.

@@ -2525,8 +2393,8 @@

DART_EXPORT Dart_Handle Dart_LibraryGetClassNames(Dart_Handle library);

DART_EXPORT Dart_Handle Dart_LookupLibrary(Dart_Handle url);

-// TODO(turnidge): Consider returning Dart_Null() when the library is

-// not found to distinguish that from a true error case.

+/* TODO(turnidge): Consider returning Dart_Null() when the library is

+ * not found to distinguish that from a true error case. */

DART_EXPORT Dart_Handle Dart_LoadLibrary(Dart_Handle url,

Dart_Handle source);

@@ -2558,7 +2426,7 @@

DART_EXPORT Dart_Handle Dart_LoadSource(Dart_Handle library,

Dart_Handle url,

Dart_Handle source);

-// TODO(turnidge): Rename to Dart_LibraryLoadSource?

+/* TODO(turnidge): Rename to Dart_LibraryLoadSource? */

/**

@@ -2583,20 +2451,20 @@

DART_EXPORT Dart_Handle Dart_SetNativeResolver(

Dart_Handle library,

Dart_NativeEntryResolver resolver);

-// TODO(turnidge): Rename to Dart_LibrarySetNativeResolver?

+/* TODO(turnidge): Rename to Dart_LibrarySetNativeResolver? */

-// --- Profiling support ----

+/* --- Profiling support ---- */

-// External pprof support for gathering and dumping symbolic

-// information that can be used for better profile reports for

-// dynamically generated code.

+/* External pprof support for gathering and dumping symbolic

+ * information that can be used for better profile reports for

+ * dynamically generated code. */

DART_EXPORT void Dart_InitPprofSupport();

DART_EXPORT void Dart_GetPprofSymbolInfo(void** buffer, int* buffer_size);

-// Support for generating symbol maps for use by the Linux perf tool.

+/* Support for generating symbol maps for use by the Linux perf tool. */

DART_EXPORT void Dart_InitPerfEventsSupport(void* perf_events_file);

-// --- Heap Profiler ---

+/* --- Heap Profiler --- */

/**

* Generates a heap profile.

@@ -2611,7 +2479,7 @@

DART_EXPORT Dart_Handle Dart_HeapProfile(Dart_FileWriteCallback callback,

void* stream);

-// --- Peers ---

+/* --- Peers --- */

/**

* The peer field is a lazily allocated field intendend for storage of

@@ -2644,4 +2512,124 @@

DART_EXPORT Dart_Handle Dart_SetPeer(Dart_Handle object, void* peer);

-#endif // INCLUDE_DART_API_H_

+/* --- Message sending/receiving from native code ---- */

+/**

+ * A Dart_CObject is used for representing Dart objects as native C

+ * data outside the Dart heap. These objects are totally detached from

+ * the Dart heap. Only a subset of the Dart objects have a

+ * representation as a Dart_CObject.

+ *

+ * The string encoding in the 'value.as_string' is UTF-8.

+ *

+ * All the different types from dart:typed_data are exposed as type

+ * kTypedData. The specific type from dart:typed_data is in the type

+ * field of the as_typed_data structure. The length in the

+ * as_typed_data structure is always in bytes.

+ */

+typedef enum {

+ Dart_CObject_kNull = 0,

+ Dart_CObject_kBool,

+ Dart_CObject_kInt32,

+ Dart_CObject_kInt64,

+ Dart_CObject_kBigint,

+ Dart_CObject_kDouble,

+ Dart_CObject_kString,

+ Dart_CObject_kArray,

+ Dart_CObject_kTypedData,

+ Dart_CObject_kExternalTypedData,

+ Dart_CObject_kUnsupported,

+ Dart_CObject_kNumberOfTypes

+} Dart_CObject_Type;

+typedef struct _Dart_CObject {

+ Dart_CObject_Type type;

+ union {

+ bool as_bool;

+ int32_t as_int32;

+ int64_t as_int64;

+ double as_double;

+ char* as_string;

+ char* as_bigint;

+ struct {

+ int length;

+ struct _Dart_CObject** values;

+ } as_array;

+ struct {

+ Dart_TypedData_Type type;

+ int length;

+ uint8_t* values;

+ } as_typed_data;

+ struct {

+ Dart_TypedData_Type type;

+ int length;

+ uint8_t* data;

+ void* peer;

+ Dart_WeakPersistentHandleFinalizer callback;

+ } as_external_typed_data;

+ } value;

+} Dart_CObject;

+/**

+ * Posts a message on some port. The message will contain the

+ * Dart_CObject object graph rooted in 'message'.

+ *

+ * While the message is being sent the state of the graph of

+ * Dart_CObject structures rooted in 'message' should not be accessed,

+ * as the message generation will make temporary modifications to the

+ * data. When the message has been sent the graph will be fully

+ * restored.

+ *

+ * \param port_id The destination port.

+ * \param message The message to send.

+ *

+ * \return True if the message was posted.

+ */

+DART_EXPORT bool Dart_PostCObject(Dart_Port port_id, Dart_CObject* message);

+/**

+ * A native message handler.

+ *

+ * This handler is associated with a native port by calling

+ * Dart_NewNativePort.

+ *

+ * The message received is decoded into the message structure. The

+ * lifetime of the message data is controlled by the caller. All the

+ * data references from the message are allocated by the caller and

+ * will be reclaimed when returning to it.

+ */

+typedef void (*Dart_NativeMessageHandler)(Dart_Port dest_port_id,

+Dart_Port reply_port_id,

+Dart_CObject* message);

+/**

+ * Creates a new native port. When messages are received on this

+ * native port, then they will be dispatched to the provided native

+ * message handler.

+ *

+ * \param name The name of this port in debugging messages.

+ * \param handler The C handler to run when messages arrive on the port.

+ * \param handle_concurrently Is it okay to process requests on this

+ * native port concurrently?

+ *

+ * \return If successful, returns the port id for the native port. In

+ * case of error, returns ILLEGAL_PORT.

+ */

+DART_EXPORT Dart_Port Dart_NewNativePort(const char* name,

+ Dart_NativeMessageHandler handler,

+ bool handle_concurrently);

+/* TODO(turnidge): Currently handle_concurrently is ignored. */

+/**

+ * Closes the native port with the given id.

+ *

+ * The port must have been allocated by a call to Dart_NewNativePort.

+ *

+ * \param native_port_id The id of the native port to close.

+ *

+ * \return Returns true if the port was closed successfully.

+ */

+DART_EXPORT bool Dart_CloseNativePort(Dart_Port native_port_id);

+#endif /* INCLUDE_DART_API_H_ */ /* NOLINT */

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