1 files changed, 471 insertions, 0 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/external/petamoriken/float16/float16.d.ts b/dom/webgpu/tests/cts/checkout/src/external/petamoriken/float16/float16.d.ts
new file mode 100644
index 0000000000..c9d66ab7ca
--- /dev/null
+++ b/dom/webgpu/tests/cts/checkout/src/external/petamoriken/float16/float16.d.ts
@@ -0,0 +1,471 @@
+/**
+ * A typed array of 16-bit float values. The contents are initialized to 0. If the requested number
+ * of bytes could not be allocated an exception is raised.
+ */
+export interface Float16Array {
+  /**
+   * The size in bytes of each element in the array.
+   */
+  readonly BYTES_PER_ELEMENT: number;
+
+  /**
+   * The ArrayBuffer instance referenced by the array.
+   */
+  readonly buffer: ArrayBufferLike;
+
+  /**
+   * The length in bytes of the array.
+   */
+  readonly byteLength: number;
+
+  /**
+   * The offset in bytes of the array.
+   */
+  readonly byteOffset: number;
+
+  [Symbol.iterator](): IterableIterator<number>;
+
+  /**
+   * Returns an array of key, value pairs for every entry in the array
+   */
+  entries(): IterableIterator<[number, number]>;
+
+  /**
+   * Returns an list of keys in the array
+   */
+  keys(): IterableIterator<number>;
+
+  /**
+   * Returns an list of values in the array
+   */
+  values(): IterableIterator<number>;
+
+  /**
+   * Returns the item located at the specified index.
+   * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+   */
+  at(index: number): number | undefined;
+
+  /**
+   * Returns the this object after copying a section of the array identified by start and end
+   * to the same array starting at position target
+   * @param target If target is negative, it is treated as length+target where length is the
+   * length of the array.
+   * @param start If start is negative, it is treated as length+start. If end is negative, it
+   * is treated as length+end.
+   * @param end If not specified, length of the this object is used as its default value.
+   */
+  copyWithin(target: number, start: number, end?: number): this;
+
+  /**
+   * Determines whether all the members of an array satisfy the specified test.
+   * @param callbackfn A function that accepts up to three arguments. The every method calls
+   * the callbackfn function for each element in the array until the callbackfn returns a value
+   * which is coercible to the Boolean value false, or until the end of the array.
+   * @param thisArg An object to which the this keyword can refer in the callbackfn function.
+   * If thisArg is omitted, undefined is used as the this value.
+   */
+  every(
+    callbackfn: (value: number, index: number, array: Float16Array) => unknown,
+    thisArg?: any,
+  ): boolean;
+
+  /**
+   * Returns the this object after filling the section identified by start and end with value
+   * @param value value to fill array section with
+   * @param start index to start filling the array at. If start is negative, it is treated as
+   * length+start where length is the length of the array.
+   * @param end index to stop filling the array at. If end is negative, it is treated as
+   * length+end.
+   */
+  fill(value: number, start?: number, end?: number): this;
+
+  /**
+   * Returns the elements of an array that meet the condition specified in a callback function.
+   * @param predicate A function that accepts up to three arguments. The filter method calls
+   * the predicate function one time for each element in the array.
+   * @param thisArg An object to which the this keyword can refer in the predicate function.
+   * If thisArg is omitted, undefined is used as the this value.
+   */
+  filter(
+    predicate: (value: number, index: number, array: Float16Array) => any,
+    thisArg?: any,
+  ): Float16Array;
+
+  /**
+   * Returns the value of the first element in the array where predicate is true, and undefined
+   * otherwise.
+   * @param predicate find calls predicate once for each element of the array, in ascending
+   * order, until it finds one where predicate returns true. If such an element is found, find
+   * immediately returns that element value. Otherwise, find returns undefined.
+   * @param thisArg If provided, it will be used as the this value for each invocation of
+   * predicate. If it is not provided, undefined is used instead.
+   */
+  find(
+    predicate: (value: number, index: number, obj: Float16Array) => boolean,
+    thisArg?: any,
+  ): number | undefined;
+
+  /**
+   * Returns the index of the first element in the array where predicate is true, and -1
+   * otherwise.
+   * @param predicate find calls predicate once for each element of the array, in ascending
+   * order, until it finds one where predicate returns true. If such an element is found,
+   * findIndex immediately returns that element index. Otherwise, findIndex returns -1.
+   * @param thisArg If provided, it will be used as the this value for each invocation of
+   * predicate. If it is not provided, undefined is used instead.
+   */
+  findIndex(
+    predicate: (value: number, index: number, obj: Float16Array) => boolean,
+    thisArg?: any,
+  ): number;
+
+  /**
+   * Returns the value of the last element in the array where predicate is true, and undefined
+   * otherwise.
+   * @param predicate find calls predicate once for each element of the array, in descending
+   * order, until it finds one where predicate returns true. If such an element is found, findLast
+   * immediately returns that element value. Otherwise, findLast returns undefined.
+   * @param thisArg If provided, it will be used as the this value for each invocation of
+   * predicate. If it is not provided, undefined is used instead.
+   */
+  findLast(
+    predicate: (value: number, index: number, obj: Float16Array) => boolean,
+    thisArg?: any,
+  ): number | undefined;
+
+  /**
+   * Returns the index of the last element in the array where predicate is true, and -1
+   * otherwise.
+   * @param predicate find calls predicate once for each element of the array, in descending
+   * order, until it finds one where predicate returns true. If such an element is found,
+   * findLastIndex immediately returns that element index. Otherwise, findLastIndex returns -1.
+   * @param thisArg If provided, it will be used as the this value for each invocation of
+   * predicate. If it is not provided, undefined is used instead.
+   */
+  findLastIndex(
+    predicate: (value: number, index: number, obj: Float16Array) => boolean,
+    thisArg?: any,
+  ): number;
+
+  /**
+   * Performs the specified action for each element in an array.
+   * @param callbackfn A function that accepts up to three arguments. forEach calls the
+   * callbackfn function one time for each element in the array.
+   * @param thisArg An object to which the this keyword can refer in the callbackfn function.
+   * If thisArg is omitted, undefined is used as the this value.
+   */
+  forEach(
+    callbackfn: (value: number, index: number, array: Float16Array) => void,
+    thisArg?: any,
+  ): void;
+
+  /**
+   * Determines whether an array includes a certain element, returning true or false as appropriate.
+   * @param searchElement The element to search for.
+   * @param fromIndex The position in this array at which to begin searching for searchElement.
+   */
+  includes(searchElement: number, fromIndex?: number): boolean;
+
+  /**
+   * Returns the index of the first occurrence of a value in an array.
+   * @param searchElement The value to locate in the array.
+   * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the
+   * search starts at index 0.
+   */
+  indexOf(searchElement: number, fromIndex?: number): number;
+
+  /**
+   * Adds all the elements of an array separated by the specified separator string.
+   * @param separator A string used to separate one element of an array from the next in the
+   * resulting String. If omitted, the array elements are separated with a comma.
+   */
+  join(separator?: string): string;
+
+  /**
+   * Returns the index of the last occurrence of a value in an array.
+   * @param searchElement The value to locate in the array.
+   * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the
+   * search starts at index 0.
+   */
+  lastIndexOf(searchElement: number, fromIndex?: number): number;
+
+  /**
+   * The length of the array.
+   */
+  readonly length: number;
+
+  /**
+   * Calls a defined callback function on each element of an array, and returns an array that
+   * contains the results.
+   * @param callbackfn A function that accepts up to three arguments. The map method calls the
+   * callbackfn function one time for each element in the array.
+   * @param thisArg An object to which the this keyword can refer in the callbackfn function.
+   * If thisArg is omitted, undefined is used as the this value.
+   */
+  map(
+    callbackfn: (value: number, index: number, array: Float16Array) => number,
+    thisArg?: any,
+  ): Float16Array;
+
+  /**
+   * Calls the specified callback function for all the elements in an array. The return value of
+   * the callback function is the accumulated result, and is provided as an argument in the next
+   * call to the callback function.
+   * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
+   * callbackfn function one time for each element in the array.
+   * @param initialValue If initialValue is specified, it is used as the initial value to start
+   * the accumulation. The first call to the callbackfn function provides this value as an argument
+   * instead of an array value.
+   */
+  reduce(
+    callbackfn: (
+      previousValue: number,
+      currentValue: number,
+      currentIndex: number,
+      array: Float16Array,
+    ) => number,
+  ): number;
+  reduce(
+    callbackfn: (
+      previousValue: number,
+      currentValue: number,
+      currentIndex: number,
+      array: Float16Array,
+    ) => number,
+    initialValue: number,
+  ): number;
+  reduce<U>(
+    callbackfn: (
+      previousValue: U,
+      currentValue: number,
+      currentIndex: number,
+      array: Float16Array,
+    ) => U,
+    initialValue: U,
+  ): U;
+
+  /**
+   * Calls the specified callback function for all the elements in an array, in descending order.
+   * The return value of the callback function is the accumulated result, and is provided as an
+   * argument in the next call to the callback function.
+   * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
+   * the callbackfn function one time for each element in the array.
+   * @param initialValue If initialValue is specified, it is used as the initial value to start
+   * the accumulation. The first call to the callbackfn function provides this value as an
+   * argument instead of an array value.
+   */
+  reduceRight(
+    callbackfn: (
+      previousValue: number,
+      currentValue: number,
+      currentIndex: number,
+      array: Float16Array,
+    ) => number,
+  ): number;
+  reduceRight(
+    callbackfn: (
+      previousValue: number,
+      currentValue: number,
+      currentIndex: number,
+      array: Float16Array,
+    ) => number,
+    initialValue: number,
+  ): number;
+  reduceRight<U>(
+    callbackfn: (
+      previousValue: U,
+      currentValue: number,
+      currentIndex: number,
+      array: Float16Array,
+    ) => U,
+    initialValue: U,
+  ): U;
+
+  /**
+   * Reverses the elements in an Array.
+   */
+  reverse(): this;
+
+  /**
+   * Sets a value or an array of values.
+   * @param array A typed or untyped array of values to set.
+   * @param offset The index in the current array at which the values are to be written.
+   */
+  set(array: ArrayLike<number>, offset?: number): void;
+
+  /**
+   * Returns a section of an array.
+   * @param start The beginning of the specified portion of the array.
+   * @param end The end of the specified portion of the array. This is exclusive of the element at the index 'end'.
+   */
+  slice(start?: number, end?: number): Float16Array;
+
+  /**
+   * Determines whether the specified callback function returns true for any element of an array.
+   * @param callbackfn A function that accepts up to three arguments. The some method calls
+   * the callbackfn function for each element in the array until the callbackfn returns a value
+   * which is coercible to the Boolean value true, or until the end of the array.
+   * @param thisArg An object to which the this keyword can refer in the callbackfn function.
+   * If thisArg is omitted, undefined is used as the this value.
+   */
+  some(
+    callbackfn: (value: number, index: number, array: Float16Array) => unknown,
+    thisArg?: any,
+  ): boolean;
+
+  /**
+   * Sorts an array.
+   * @param compareFn Function used to determine the order of the elements. It is expected to return
+   * a negative value if first argument is less than second argument, zero if they're equal and a positive
+   * value otherwise. If omitted, the elements are sorted in ascending.
+   */
+  sort(compareFn?: (a: number, b: number) => number): this;
+
+  /**
+   * Gets a new Float16Array view of the ArrayBuffer store for this array, referencing the elements
+   * at begin, inclusive, up to end, exclusive.
+   * @param begin The index of the beginning of the array.
+   * @param end The index of the end of the array.
+   */
+  subarray(begin?: number, end?: number): Float16Array;
+
+  /**
+   * Converts a number to a string by using the current locale.
+   */
+  toLocaleString(): string;
+
+  /**
+   * Returns a string representation of an array.
+   */
+  toString(): string;
+
+  /**
+   * Returns the primitive value of the specified object.
+   */
+  valueOf(): Float16Array;
+
+  readonly [Symbol.toStringTag]: "Float16Array";
+
+  [index: number]: number;
+}
+
+export interface Float16ArrayConstructor {
+  readonly prototype: Float16Array;
+  new (): Float16Array;
+  new (length: number): Float16Array;
+  new (elements: Iterable<number>): Float16Array;
+  new (array: ArrayLike<number> | ArrayBufferLike): Float16Array;
+  new (
+    buffer: ArrayBufferLike,
+    byteOffset: number,
+    length?: number,
+  ): Float16Array;
+
+  /**
+   * The size in bytes of each element in the array.
+   */
+  readonly BYTES_PER_ELEMENT: number;
+
+  /**
+   * Returns a new array from a set of elements.
+   * @param items A set of elements to include in the new array object.
+   */
+  of(...items: number[]): Float16Array;
+
+  /**
+   * Creates an array from an array-like or iterable object.
+   * @param elements An iterable object to convert to an array.
+   */
+  from(elements: Iterable<number>): Float16Array;
+
+  /**
+   * Creates an array from an array-like or iterable object.
+   * @param elements An iterable object to convert to an array.
+   * @param mapfn A mapping function to call on every element of the array.
+   * @param thisArg Value of 'this' used to invoke the mapfn.
+   */
+  from<T>(
+    elements: Iterable<T>,
+    mapfn: (v: T, k: number) => number,
+    thisArg?: any,
+  ): Float16Array;
+
+  /**
+   * Creates an array from an array-like or iterable object.
+   * @param arrayLike An array-like object to convert to an array.
+   */
+  from(arrayLike: ArrayLike<number>): Float16Array;
+
+  /**
+   * Creates an array from an array-like or iterable object.
+   * @param arrayLike An array-like object to convert to an array.
+   * @param mapfn A mapping function to call on every element of the array.
+   * @param thisArg Value of 'this' used to invoke the mapfn.
+   */
+  from<T>(
+    arrayLike: ArrayLike<T>,
+    mapfn: (v: T, k: number) => number,
+    thisArg?: any,
+  ): Float16Array;
+}
+export declare const Float16Array: Float16ArrayConstructor;
+
+/**
+ * Returns `true` if the value is a Float16Array instance.
+ * @since v3.4.0
+ */
+export declare function isFloat16Array(value: unknown): value is Float16Array;
+
+/**
+ * Returns `true` if the value is a type of TypedArray instance that contains  Float16Array.
+ * @since v3.6.0
+ */
+export declare function isTypedArray(
+  value: unknown,
+): value is
+  | Uint8Array
+  | Uint8ClampedArray
+  | Uint16Array
+  | Uint32Array
+  | Int8Array
+  | Int16Array
+  | Int32Array
+  | Float16Array
+  | Float32Array
+  | Float64Array
+  | BigUint64Array
+  | BigInt64Array;
+
+/**
+ * Gets the Float16 value at the specified byte offset from the start of the view. There is
+ * no alignment constraint; multi-byte values may be fetched from any offset.
+ * @param byteOffset The place in the buffer at which the value should be retrieved.
+ * @param littleEndian If false or undefined, a big-endian value should be read,
+ * otherwise a little-endian value should be read.
+ */
+export declare function getFloat16(
+  dataView: DataView,
+  byteOffset: number,
+  littleEndian?: boolean,
+): number;
+
+/**
+ * Stores an Float16 value at the specified byte offset from the start of the view.
+ * @param byteOffset The place in the buffer at which the value should be set.
+ * @param value The value to set.
+ * @param littleEndian If false or undefined, a big-endian value should be written,
+ * otherwise a little-endian value should be written.
+ */
+export declare function setFloat16(
+  dataView: DataView,
+  byteOffset: number,
+  value: number,
+  littleEndian?: boolean,
+): void;
+
+/**
+ * Returns the nearest half-precision float representation of a number.
+ * @param x A numeric expression.
+ */
+export declare function hfround(x: number): number;