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mon-entreprise/publicodes/source/evaluationFunctions.tsx
2020-12-07 14:40:59 +01:00

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530 B
TypeScript

import { evaluationFunction } from '.'
import { ASTNode } from './AST/types'
export let evaluationFunctions = {
constant: (node) => node,
} as any
export function registerEvaluationFunction<
NodeName extends ASTNode['nodeKind']
>(nodeKind: NodeName, evaluationFunction: evaluationFunction<NodeName>) {
evaluationFunctions ??= {}
if (evaluationFunctions[nodeKind]) {
throw Error(
`Multiple evaluation functions registered for the nodeKind \x1b[4m${nodeKind}`
)
}
evaluationFunctions[nodeKind] = evaluationFunction
}