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feat(struct): add constraint to TOmitInitKey

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This commit is contained in:
Simon Chan 2021-01-18 11:21:07 +08:00
parent 2cef5baba2
commit 4fb1d07722
4 changed files with 20 additions and 17 deletions
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29
packages/struct/src/struct.ts
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@ -1,6 +1,6 @@
import { StructDefaultOptions, StructDeserializationContext, StructFieldDefinition, StructFieldValue, StructOptions, StructSerializationContext, StructValue } from './basic';
import { ArrayBufferFieldType, ArrayBufferLikeFieldType, FixedLengthArrayBufferLikeFieldDefinition, FixedLengthArrayBufferLikeFieldOptions, NumberFieldDefinition, NumberFieldType, StringFieldType, Uint8ClampedArrayFieldType, VariableLengthArrayBufferLikeFieldDefinition, VariableLengthArrayBufferLikeFieldOptions } from './types';
import { Awaited, Evaluate, Identity, KeysOfType, Overwrite } from './utils';
import { ArrayBufferFieldType, ArrayBufferLikeFieldType, FixedLengthArrayBufferLikeFieldDefinition, FixedLengthArrayBufferLikeFieldOptions, LengthField, NumberFieldDefinition, NumberFieldType, StringFieldType, Uint8ClampedArrayFieldType, VariableLengthArrayBufferLikeFieldDefinition, VariableLengthArrayBufferLikeFieldOptions } from './types';
import { Awaited, Evaluate, Identity, Overwrite } from './utils';
export interface StructLike<TValue> {
deserialize(context: StructDeserializationContext): Promise<TValue>;
@ -19,17 +19,18 @@ export type StructValueType<T extends StructLike<any>> =
*/
type AddFieldDescriptor<
TFields extends object,
TOmitInit extends string,
TOmitInitKey extends PropertyKey,
TExtra extends object,
TPostDeserialized,
TFieldName extends PropertyKey,
TDefinition extends StructFieldDefinition<any, any, any>> =
TDefinition extends StructFieldDefinition<any, any, any>
> =
Identity<Struct<
// Merge two types
// Evaluate immediately to optimize editor hover tooltip
Evaluate<TFields & Record<TFieldName, TDefinition['valueType']>>,
// Merge two `TOmitInit
TOmitInit | TDefinition['omitInitKeyType'],
// Merge two `TOmitInitKey`s
TOmitInitKey | TDefinition['omitInitKeyType'],
TExtra,
TPostDeserialized
>>;
@ -39,7 +40,7 @@ type AddFieldDescriptor<
*/
interface ArrayBufferLikeFieldCreator<
TFields extends object,
TOmitInit extends string,
TOmitInitKey extends PropertyKey,
TExtra extends object,
TPostDeserialized
> {
@ -63,7 +64,7 @@ interface ArrayBufferLikeFieldCreator<
typescriptType?: TTypeScriptType,
): AddFieldDescriptor<
TFields,
TOmitInit,
TOmitInitKey,
TExtra,
TPostDeserialized,
TName,
@ -88,7 +89,7 @@ interface ArrayBufferLikeFieldCreator<
typescriptType?: TTypeScriptType,
): AddFieldDescriptor<
TFields,
TOmitInit,
TOmitInitKey,
TExtra,
TPostDeserialized,
TName,
@ -104,7 +105,7 @@ interface ArrayBufferLikeFieldCreator<
*/
interface ArrayBufferTypeFieldDefinitionCreator<
TFields extends object,
TOmitInit extends string,
TOmitInitKey extends PropertyKey,
TExtra extends object,
TPostDeserialized,
TType extends ArrayBufferLikeFieldType
@ -118,7 +119,7 @@ interface ArrayBufferTypeFieldDefinitionCreator<
typescriptType?: TTypeScriptType,
): AddFieldDescriptor<
TFields,
TOmitInit,
TOmitInitKey,
TExtra,
TPostDeserialized,
TName,
@ -130,7 +131,7 @@ interface ArrayBufferTypeFieldDefinitionCreator<
<
TName extends PropertyKey,
TLengthField extends KeysOfType<TFields, number | string>,
TLengthField extends LengthField<TFields>,
TOptions extends VariableLengthArrayBufferLikeFieldOptions<TFields, TLengthField>,
TTypeScriptType = TType['valueType'],
>(
@ -139,7 +140,7 @@ interface ArrayBufferTypeFieldDefinitionCreator<
typescriptType?: TTypeScriptType,
): AddFieldDescriptor<
TFields,
TOmitInit,
TOmitInitKey,
TExtra,
TPostDeserialized,
TName,
@ -158,7 +159,7 @@ export type StructDeserializedType<TFields extends object, TExtra extends object
export class Struct<
TFields extends object = {},
TOmitInitKey extends string = never,
TOmitInitKey extends PropertyKey = never,
TExtra extends object = {},
TPostDeserialized = undefined,
> implements StructLike<StructDeserializedType<TFields, TExtra, TPostDeserialized>>{