Josh Gross
27 lines
891 B
TypeScript
27 lines
891 B
TypeScript
import {ExpressionData} from "../data";
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import {reviver} from "../data/reviver";
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import {ExpressionEvaluationError} from "../errors";
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import {FunctionDefinition} from "./info";
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export const fromjson: FunctionDefinition = {
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name: "fromJson",
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description:
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"`fromJSON(value)`\n\nReturns a JSON object or JSON data type for `value`. You can use this function to provide a JSON object as an evaluated expression or to convert environment variables from a string.",
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minArgs: 1,
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maxArgs: 1,
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call: (...args: ExpressionData[]): ExpressionData => {
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const input = args[0];
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const is = input.coerceString();
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if (is.trim() === "") {
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throw new Error("empty input");
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}
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try {
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return JSON.parse(is, reviver) as ExpressionData;
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} catch (e) {
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throw new ExpressionEvaluationError("Error parsing JSON when evaluating fromJson", {cause: e});
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}
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}
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};
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