bc518174
 王天杨
提交两个项目文件
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import { invariant } from '@react-dnd/invariant'
import type { DragSource, DropTarget, Identifier } from './interfaces.js'
export function validateSourceContract(source: DragSource): void {
invariant(
typeof source.canDrag === 'function',
'Expected canDrag to be a function.',
)
invariant(
typeof source.beginDrag === 'function',
'Expected beginDrag to be a function.',
)
invariant(
typeof source.endDrag === 'function',
'Expected endDrag to be a function.',
)
}
export function validateTargetContract(target: DropTarget): void {
invariant(
typeof target.canDrop === 'function',
'Expected canDrop to be a function.',
)
invariant(
typeof target.hover === 'function',
'Expected hover to be a function.',
)
invariant(
typeof target.drop === 'function',
'Expected beginDrag to be a function.',
)
}
export function validateType(
type: Identifier | Identifier[],
allowArray?: boolean,
): void {
if (allowArray && Array.isArray(type)) {
type.forEach((t) => validateType(t, false))
return
}
invariant(
typeof type === 'string' || typeof type === 'symbol',
allowArray
? 'Type can only be a string, a symbol, or an array of either.'
: 'Type can only be a string or a symbol.',
)
}
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