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Split TypeNames and Types into different lists

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This commit is contained in:
Bjorn Stromberg 2020-06-06 16:52:10 +09:00
parent 6824f1446d
commit dc348a0e49
1 changed files with 50 additions and 30 deletions
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80
source/index.ts
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@ -31,42 +31,62 @@ const objectTypeNames = [
type ObjectTypeName = typeof objectTypeNames[number];
const primitives = {
null: null,
undefined,
string: String(),
number: Number(),
bigint: BigInt(0),
boolean: Boolean(),
symbol: Symbol('')
} as const;
const primitiveTypeNames = [
'null',
'undefined',
'string',
'number',
'bigint',
'boolean',
'symbol'
] as const;
type PrimitiveTypeName = keyof typeof primitives;
export type Primitive = typeof primitives[PrimitiveTypeName];
export type Primitive =
| null
| undefined
| string
| number
| bigint
| boolean
| symbol;
function isPrimitiveTypeName(name: string): name is PrimitiveTypeName {
return Object.prototype.hasOwnProperty.call(primitives, name);
type PrimitiveTypeName = typeof primitiveTypeNames[number];
function isPrimitiveTypeName(name: any): name is PrimitiveTypeName {
return primitiveTypeNames.includes(name);
}
const typedArrays = {
Int8Array: new Int8Array(),
Uint8Array: new Uint8Array(),
Uint8ClampedArray: new Uint8ClampedArray(),
Int16Array: new Int16Array(),
Uint16Array: new Uint16Array(),
Int32Array: new Int32Array(),
Uint32Array: new Uint32Array(),
Float32Array: new Float32Array(),
Float64Array: new Float64Array(),
BigInt64Array: new BigInt64Array(),
BigUint64Array: new BigUint64Array()
} as const;
const typedArrayTypeNames = [
'Int8Array',
'Uint8Array',
'Uint8ClampedArray',
'Int16Array',
'Uint16Array',
'Int32Array',
'Uint32Array',
'Float32Array',
'Float64Array',
'BigInt64Array',
'BigUint64Array'
] as const;
type TypedArrayTypeName = keyof typeof typedArrays;
export type TypedArray = typeof typedArrays[TypedArrayTypeName];
export type TypedArray =
| Int8Array
| Uint8Array
| Uint8ClampedArray
| Int16Array
| Uint16Array
| Int32Array
| Uint32Array
| Float32Array
| Float64Array
| BigInt64Array
| BigUint64Array;
function isTypedArrayName(value: any): value is TypedArrayTypeName {
return Object.prototype.hasOwnProperty.call(typedArrays, value);
type TypedArrayTypeName = typeof typedArrayTypeNames[number];
function isTypedArrayName(name: any): name is TypedArrayTypeName {
return typedArrayTypeNames.includes(name);
}
export type TypeName = ObjectTypeName | PrimitiveTypeName | TypedArrayTypeName;