refactor: move WebGPU, FFI and FS typings from unstable to stable (#25488)

Closes #25377
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Leo Kettmeir 2024-09-10 05:04:59 -07:00 committed by GitHub
parent 9a169e3cf1
commit c2f97494f7
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7 changed files with 847 additions and 1375 deletions

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@ -4556,6 +4556,24 @@ declare namespace Deno {
mtime: number | Date,
): Promise<void>;
/** Retrieve the process umask. If `mask` is provided, sets the process umask.
* This call always returns what the umask was before the call.
*
* ```ts
* console.log(Deno.umask()); // e.g. 18 (0o022)
* const prevUmaskValue = Deno.umask(0o077); // e.g. 18 (0o022)
* console.log(Deno.umask()); // e.g. 63 (0o077)
* ```
*
* This API is under consideration to determine if permissions are required to
* call it.
*
* *Note*: This API is not implemented on Windows
*
* @category File System
*/
export function umask(mask?: number): number;
/** The object that is returned from a {@linkcode Deno.upgradeWebSocket}
* request.
*
@ -5395,4 +5413,675 @@ declare namespace Deno {
& (ServeTcpOptions | (ServeTcpOptions & TlsCertifiedKeyOptions))
& ServeInit<Deno.NetAddr>,
): HttpServer<Deno.NetAddr>;
/** All plain number types for interfacing with foreign functions.
*
* @category FFI
*/
export type NativeNumberType =
| "u8"
| "i8"
| "u16"
| "i16"
| "u32"
| "i32"
| "f32"
| "f64";
/** All BigInt number types for interfacing with foreign functions.
*
* @category FFI
*/
export type NativeBigIntType =
| "u64"
| "i64"
| "usize"
| "isize";
/** The native boolean type for interfacing to foreign functions.
*
* @category FFI
*/
export type NativeBooleanType = "bool";
/** The native pointer type for interfacing to foreign functions.
*
* @category FFI
*/
export type NativePointerType = "pointer";
/** The native buffer type for interfacing to foreign functions.
*
* @category FFI
*/
export type NativeBufferType = "buffer";
/** The native function type for interfacing with foreign functions.
*
* @category FFI
*/
export type NativeFunctionType = "function";
/** The native void type for interfacing with foreign functions.
*
* @category FFI
*/
export type NativeVoidType = "void";
/** The native struct type for interfacing with foreign functions.
*
* @category FFI
*/
export type NativeStructType = { readonly struct: readonly NativeType[] };
/**
* @category FFI
*/
export const brand: unique symbol;
/**
* @category FFI
*/
export type NativeU8Enum<T extends number> = "u8" & { [brand]: T };
/**
* @category FFI
*/
export type NativeI8Enum<T extends number> = "i8" & { [brand]: T };
/**
* @category FFI
*/
export type NativeU16Enum<T extends number> = "u16" & { [brand]: T };
/**
* @category FFI
*/
export type NativeI16Enum<T extends number> = "i16" & { [brand]: T };
/**
* @category FFI
*/
export type NativeU32Enum<T extends number> = "u32" & { [brand]: T };
/**
* @category FFI
*/
export type NativeI32Enum<T extends number> = "i32" & { [brand]: T };
/**
* @category FFI
*/
export type NativeTypedPointer<T extends PointerObject> = "pointer" & {
[brand]: T;
};
/**
* @category FFI
*/
export type NativeTypedFunction<T extends UnsafeCallbackDefinition> =
& "function"
& {
[brand]: T;
};
/** All supported types for interfacing with foreign functions.
*
* @category FFI
*/
export type NativeType =
| NativeNumberType
| NativeBigIntType
| NativeBooleanType
| NativePointerType
| NativeBufferType
| NativeFunctionType
| NativeStructType;
/** @category FFI
*/
export type NativeResultType = NativeType | NativeVoidType;
/** Type conversion for foreign symbol parameters and unsafe callback return
* types.
*
* @category FFI
*/
export type ToNativeType<T extends NativeType = NativeType> = T extends
NativeStructType ? BufferSource
: T extends NativeNumberType ? T extends NativeU8Enum<infer U> ? U
: T extends NativeI8Enum<infer U> ? U
: T extends NativeU16Enum<infer U> ? U
: T extends NativeI16Enum<infer U> ? U
: T extends NativeU32Enum<infer U> ? U
: T extends NativeI32Enum<infer U> ? U
: number
: T extends NativeBigIntType ? bigint
: T extends NativeBooleanType ? boolean
: T extends NativePointerType
? T extends NativeTypedPointer<infer U> ? U | null : PointerValue
: T extends NativeFunctionType
? T extends NativeTypedFunction<infer U> ? PointerValue<U> | null
: PointerValue
: T extends NativeBufferType ? BufferSource | null
: never;
/** Type conversion for unsafe callback return types.
*
* @category FFI
*/
export type ToNativeResultType<
T extends NativeResultType = NativeResultType,
> = T extends NativeStructType ? BufferSource
: T extends NativeNumberType ? T extends NativeU8Enum<infer U> ? U
: T extends NativeI8Enum<infer U> ? U
: T extends NativeU16Enum<infer U> ? U
: T extends NativeI16Enum<infer U> ? U
: T extends NativeU32Enum<infer U> ? U
: T extends NativeI32Enum<infer U> ? U
: number
: T extends NativeBigIntType ? bigint
: T extends NativeBooleanType ? boolean
: T extends NativePointerType
? T extends NativeTypedPointer<infer U> ? U | null : PointerValue
: T extends NativeFunctionType
? T extends NativeTypedFunction<infer U> ? PointerObject<U> | null
: PointerValue
: T extends NativeBufferType ? BufferSource | null
: T extends NativeVoidType ? void
: never;
/** A utility type for conversion of parameter types of foreign functions.
*
* @category FFI
*/
export type ToNativeParameterTypes<T extends readonly NativeType[]> =
//
[(T[number])[]] extends [T] ? ToNativeType<T[number]>[]
: [readonly (T[number])[]] extends [T]
? readonly ToNativeType<T[number]>[]
: T extends readonly [...NativeType[]] ? {
[K in keyof T]: ToNativeType<T[K]>;
}
: never;
/** Type conversion for foreign symbol return types and unsafe callback
* parameters.
*
* @category FFI
*/
export type FromNativeType<T extends NativeType = NativeType> = T extends
NativeStructType ? Uint8Array
: T extends NativeNumberType ? T extends NativeU8Enum<infer U> ? U
: T extends NativeI8Enum<infer U> ? U
: T extends NativeU16Enum<infer U> ? U
: T extends NativeI16Enum<infer U> ? U
: T extends NativeU32Enum<infer U> ? U
: T extends NativeI32Enum<infer U> ? U
: number
: T extends NativeBigIntType ? bigint
: T extends NativeBooleanType ? boolean
: T extends NativePointerType
? T extends NativeTypedPointer<infer U> ? U | null : PointerValue
: T extends NativeBufferType ? PointerValue
: T extends NativeFunctionType
? T extends NativeTypedFunction<infer U> ? PointerObject<U> | null
: PointerValue
: never;
/** Type conversion for foreign symbol return types.
*
* @category FFI
*/
export type FromNativeResultType<
T extends NativeResultType = NativeResultType,
> = T extends NativeStructType ? Uint8Array
: T extends NativeNumberType ? T extends NativeU8Enum<infer U> ? U
: T extends NativeI8Enum<infer U> ? U
: T extends NativeU16Enum<infer U> ? U
: T extends NativeI16Enum<infer U> ? U
: T extends NativeU32Enum<infer U> ? U
: T extends NativeI32Enum<infer U> ? U
: number
: T extends NativeBigIntType ? bigint
: T extends NativeBooleanType ? boolean
: T extends NativePointerType
? T extends NativeTypedPointer<infer U> ? U | null : PointerValue
: T extends NativeBufferType ? PointerValue
: T extends NativeFunctionType
? T extends NativeTypedFunction<infer U> ? PointerObject<U> | null
: PointerValue
: T extends NativeVoidType ? void
: never;
/** @category FFI
*/
export type FromNativeParameterTypes<
T extends readonly NativeType[],
> =
//
[(T[number])[]] extends [T] ? FromNativeType<T[number]>[]
: [readonly (T[number])[]] extends [T]
? readonly FromNativeType<T[number]>[]
: T extends readonly [...NativeType[]] ? {
[K in keyof T]: FromNativeType<T[K]>;
}
: never;
/** The interface for a foreign function as defined by its parameter and result
* types.
*
* @category FFI
*/
export interface ForeignFunction<
Parameters extends readonly NativeType[] = readonly NativeType[],
Result extends NativeResultType = NativeResultType,
NonBlocking extends boolean = boolean,
> {
/** Name of the symbol.
*
* Defaults to the key name in symbols object. */
name?: string;
/** The parameters of the foreign function. */
parameters: Parameters;
/** The result (return value) of the foreign function. */
result: Result;
/** When `true`, function calls will run on a dedicated blocking thread and
* will return a `Promise` resolving to the `result`. */
nonblocking?: NonBlocking;
/** When `true`, dlopen will not fail if the symbol is not found.
* Instead, the symbol will be set to `null`.
*
* @default {false} */
optional?: boolean;
}
/** @category FFI
*/
export interface ForeignStatic<Type extends NativeType = NativeType> {
/** Name of the symbol, defaults to the key name in symbols object. */
name?: string;
/** The type of the foreign static value. */
type: Type;
/** When `true`, dlopen will not fail if the symbol is not found.
* Instead, the symbol will be set to `null`.
*
* @default {false} */
optional?: boolean;
}
/** A foreign library interface descriptor.
*
* @category FFI
*/
export interface ForeignLibraryInterface {
[name: string]: ForeignFunction | ForeignStatic;
}
/** A utility type that infers a foreign symbol.
*
* @category FFI
*/
export type StaticForeignSymbol<T extends ForeignFunction | ForeignStatic> =
T extends ForeignFunction ? FromForeignFunction<T>
: T extends ForeignStatic ? FromNativeType<T["type"]>
: never;
/** @category FFI
*/
export type FromForeignFunction<T extends ForeignFunction> =
T["parameters"] extends readonly [] ? () => StaticForeignSymbolReturnType<T>
: (
...args: ToNativeParameterTypes<T["parameters"]>
) => StaticForeignSymbolReturnType<T>;
/** @category FFI
*/
export type StaticForeignSymbolReturnType<T extends ForeignFunction> =
ConditionalAsync<T["nonblocking"], FromNativeResultType<T["result"]>>;
/** @category FFI
*/
export type ConditionalAsync<IsAsync extends boolean | undefined, T> =
IsAsync extends true ? Promise<T> : T;
/** A utility type that infers a foreign library interface.
*
* @category FFI
*/
export type StaticForeignLibraryInterface<T extends ForeignLibraryInterface> =
{
[K in keyof T]: T[K]["optional"] extends true
? StaticForeignSymbol<T[K]> | null
: StaticForeignSymbol<T[K]>;
};
/** A non-null pointer, represented as an object
* at runtime. The object's prototype is `null`
* and cannot be changed. The object cannot be
* assigned to either and is thus entirely read-only.
*
* To interact with memory through a pointer use the
* {@linkcode UnsafePointerView} class. To create a
* pointer from an address or the get the address of
* a pointer use the static methods of the
* {@linkcode UnsafePointer} class.
*
* @category FFI
*/
export type PointerObject<T = unknown> = { [brand]: T };
/** Pointers are represented either with a {@linkcode PointerObject}
* object or a `null` if the pointer is null.
*
* @category FFI
*/
export type PointerValue<T = unknown> = null | PointerObject<T>;
/** A collection of static functions for interacting with pointer objects.
*
* @category FFI
*/
export class UnsafePointer {
/** Create a pointer from a numeric value. This one is <i>really</i> dangerous! */
static create<T = unknown>(value: bigint): PointerValue<T>;
/** Returns `true` if the two pointers point to the same address. */
static equals<T = unknown>(a: PointerValue<T>, b: PointerValue<T>): boolean;
/** Return the direct memory pointer to the typed array in memory. */
static of<T = unknown>(
value: Deno.UnsafeCallback | BufferSource,
): PointerValue<T>;
/** Return a new pointer offset from the original by `offset` bytes. */
static offset<T = unknown>(
value: PointerObject,
offset: number,
): PointerValue<T>;
/** Get the numeric value of a pointer */
static value(value: PointerValue): bigint;
}
/** An unsafe pointer view to a memory location as specified by the `pointer`
* value. The `UnsafePointerView` API follows the standard built in interface
* {@linkcode DataView} for accessing the underlying types at an memory
* location (numbers, strings and raw bytes).
*
* @category FFI
*/
export class UnsafePointerView {
constructor(pointer: PointerObject);
pointer: PointerObject;
/** Gets a boolean at the specified byte offset from the pointer. */
getBool(offset?: number): boolean;
/** Gets an unsigned 8-bit integer at the specified byte offset from the
* pointer. */
getUint8(offset?: number): number;
/** Gets a signed 8-bit integer at the specified byte offset from the
* pointer. */
getInt8(offset?: number): number;
/** Gets an unsigned 16-bit integer at the specified byte offset from the
* pointer. */
getUint16(offset?: number): number;
/** Gets a signed 16-bit integer at the specified byte offset from the
* pointer. */
getInt16(offset?: number): number;
/** Gets an unsigned 32-bit integer at the specified byte offset from the
* pointer. */
getUint32(offset?: number): number;
/** Gets a signed 32-bit integer at the specified byte offset from the
* pointer. */
getInt32(offset?: number): number;
/** Gets an unsigned 64-bit integer at the specified byte offset from the
* pointer. */
getBigUint64(offset?: number): bigint;
/** Gets a signed 64-bit integer at the specified byte offset from the
* pointer. */
getBigInt64(offset?: number): bigint;
/** Gets a signed 32-bit float at the specified byte offset from the
* pointer. */
getFloat32(offset?: number): number;
/** Gets a signed 64-bit float at the specified byte offset from the
* pointer. */
getFloat64(offset?: number): number;
/** Gets a pointer at the specified byte offset from the pointer */
getPointer<T = unknown>(offset?: number): PointerValue<T>;
/** Gets a C string (`null` terminated string) at the specified byte offset
* from the pointer. */
getCString(offset?: number): string;
/** Gets a C string (`null` terminated string) at the specified byte offset
* from the specified pointer. */
static getCString(
pointer: PointerObject,
offset?: number,
): string;
/** Gets an `ArrayBuffer` of length `byteLength` at the specified byte
* offset from the pointer. */
getArrayBuffer(byteLength: number, offset?: number): ArrayBuffer;
/** Gets an `ArrayBuffer` of length `byteLength` at the specified byte
* offset from the specified pointer. */
static getArrayBuffer(
pointer: PointerObject,
byteLength: number,
offset?: number,
): ArrayBuffer;
/** Copies the memory of the pointer into a typed array.
*
* Length is determined from the typed array's `byteLength`.
*
* Also takes optional byte offset from the pointer. */
copyInto(destination: BufferSource, offset?: number): void;
/** Copies the memory of the specified pointer into a typed array.
*
* Length is determined from the typed array's `byteLength`.
*
* Also takes optional byte offset from the pointer. */
static copyInto(
pointer: PointerObject,
destination: BufferSource,
offset?: number,
): void;
}
/** An unsafe pointer to a function, for calling functions that are not present
* as symbols.
*
* @category FFI
*/
export class UnsafeFnPointer<const Fn extends ForeignFunction> {
/** The pointer to the function. */
pointer: PointerObject<Fn>;
/** The definition of the function. */
definition: Fn;
constructor(pointer: PointerObject<NoInfer<Fn>>, definition: Fn);
/** @deprecated Properly type {@linkcode pointer} using {@linkcode NativeTypedFunction} or {@linkcode UnsafeCallbackDefinition} types. */
constructor(pointer: PointerObject, definition: Fn);
/** Call the foreign function. */
call: FromForeignFunction<Fn>;
}
/** Definition of a unsafe callback function.
*
* @category FFI
*/
export interface UnsafeCallbackDefinition<
Parameters extends readonly NativeType[] = readonly NativeType[],
Result extends NativeResultType = NativeResultType,
> {
/** The parameters of the callbacks. */
parameters: Parameters;
/** The current result of the callback. */
result: Result;
}
/** An unsafe callback function.
*
* @category FFI
*/
export type UnsafeCallbackFunction<
Parameters extends readonly NativeType[] = readonly NativeType[],
Result extends NativeResultType = NativeResultType,
> = Parameters extends readonly [] ? () => ToNativeResultType<Result> : (
...args: FromNativeParameterTypes<Parameters>
) => ToNativeResultType<Result>;
/** An unsafe function pointer for passing JavaScript functions as C function
* pointers to foreign function calls.
*
* The function pointer remains valid until the `close()` method is called.
*
* All `UnsafeCallback` are always thread safe in that they can be called from
* foreign threads without crashing. However, they do not wake up the Deno event
* loop by default.
*
* If a callback is to be called from foreign threads, use the `threadSafe()`
* static constructor or explicitly call `ref()` to have the callback wake up
* the Deno event loop when called from foreign threads. This also stops
* Deno's process from exiting while the callback still exists and is not
* unref'ed.
*
* Use `deref()` to then allow Deno's process to exit. Calling `deref()` on
* a ref'ed callback does not stop it from waking up the Deno event loop when
* called from foreign threads.
*
* @category FFI
*/
export class UnsafeCallback<
const Definition extends UnsafeCallbackDefinition =
UnsafeCallbackDefinition,
> {
constructor(
definition: Definition,
callback: UnsafeCallbackFunction<
Definition["parameters"],
Definition["result"]
>,
);
/** The pointer to the unsafe callback. */
readonly pointer: PointerObject<Definition>;
/** The definition of the unsafe callback. */
readonly definition: Definition;
/** The callback function. */
readonly callback: UnsafeCallbackFunction<
Definition["parameters"],
Definition["result"]
>;
/**
* Creates an {@linkcode UnsafeCallback} and calls `ref()` once to allow it to
* wake up the Deno event loop when called from foreign threads.
*
* This also stops Deno's process from exiting while the callback still
* exists and is not unref'ed.
*/
static threadSafe<
Definition extends UnsafeCallbackDefinition = UnsafeCallbackDefinition,
>(
definition: Definition,
callback: UnsafeCallbackFunction<
Definition["parameters"],
Definition["result"]
>,
): UnsafeCallback<Definition>;
/**
* Increments the callback's reference counting and returns the new
* reference count.
*
* After `ref()` has been called, the callback always wakes up the
* Deno event loop when called from foreign threads.
*
* If the callback's reference count is non-zero, it keeps Deno's
* process from exiting.
*/
ref(): number;
/**
* Decrements the callback's reference counting and returns the new
* reference count.
*
* Calling `unref()` does not stop a callback from waking up the Deno
* event loop when called from foreign threads.
*
* If the callback's reference counter is zero, it no longer keeps
* Deno's process from exiting.
*/
unref(): number;
/**
* Removes the C function pointer associated with this instance.
*
* Continuing to use the instance or the C function pointer after closing
* the `UnsafeCallback` will lead to errors and crashes.
*
* Calling this method sets the callback's reference counting to zero,
* stops the callback from waking up the Deno event loop when called from
* foreign threads and no longer keeps Deno's process from exiting.
*/
close(): void;
}
/** A dynamic library resource. Use {@linkcode Deno.dlopen} to load a dynamic
* library and return this interface.
*
* @category FFI
*/
export interface DynamicLibrary<S extends ForeignLibraryInterface> {
/** All of the registered library along with functions for calling them. */
symbols: StaticForeignLibraryInterface<S>;
/** Removes the pointers associated with the library symbols.
*
* Continuing to use symbols that are part of the library will lead to
* errors and crashes.
*
* Calling this method will also immediately set any references to zero and
* will no longer keep Deno's process from exiting.
*/
close(): void;
}
/** Opens an external dynamic library and registers symbols, making foreign
* functions available to be called.
*
* Requires `allow-ffi` permission. Loading foreign dynamic libraries can in
* theory bypass all of the sandbox permissions. While it is a separate
* permission users should acknowledge in practice that is effectively the
* same as running with the `allow-all` permission.
*
* @example Given a C library which exports a foreign function named `add()`
*
* ```ts
* // Determine library extension based on
* // your OS.
* let libSuffix = "";
* switch (Deno.build.os) {
* case "windows":
* libSuffix = "dll";
* break;
* case "darwin":
* libSuffix = "dylib";
* break;
* default:
* libSuffix = "so";
* break;
* }
*
* const libName = `./libadd.${libSuffix}`;
* // Open library and define exported symbols
* const dylib = Deno.dlopen(
* libName,
* {
* "add": { parameters: ["isize", "isize"], result: "isize" },
* } as const,
* );
*
* // Call the symbol `add`
* const result = dylib.symbols.add(35n, 34n); // 69n
*
* console.log(`Result from external addition of 35 and 34: ${result}`);
* ```
*
* @tags allow-ffi
* @category FFI
*/
export function dlopen<const S extends ForeignLibraryInterface>(
filename: string | URL,
symbols: S,
): DynamicLibrary<S>;
}