39 lines
1.4 KiB
TypeScript
39 lines
1.4 KiB
TypeScript
import {
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type AstNode,
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CodeModeFunction,
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InterpreterRuntimeError,
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supportedSyntaxMessage,
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} from "../interpreter/model.js"
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import { copyIn, copyOut } from "../tool-runtime.js"
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export const invokeJsonMethod = (name: string, args: Array<unknown>, node: AstNode): unknown => {
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switch (name) {
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case "stringify": {
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const replacer = args[1]
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if (Array.isArray(replacer) || replacer instanceof CodeModeFunction) {
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throw new InterpreterRuntimeError(
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"JSON.stringify replacers are not supported in CodeMode.",
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node,
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"UnsupportedSyntax",
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[supportedSyntaxMessage],
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)
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}
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const space = args[2]
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const indent = typeof space === "number" || typeof space === "string" ? space : undefined
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return JSON.stringify(copyOut(copyIn(args[0], "JSON.stringify value")), null, indent)
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}
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case "parse": {
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const text = args[0]
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if (typeof text !== "string") throw new InterpreterRuntimeError("JSON.parse expects a string.", node)
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try {
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return copyIn(JSON.parse(text), "JSON.parse result")
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} catch (error) {
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throw new InterpreterRuntimeError(
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`JSON.parse received invalid JSON: ${error instanceof Error ? error.message : String(error)}`,
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node,
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).as("SyntaxError")
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}
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}
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}
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throw new InterpreterRuntimeError(`JSON.${name} is not available in CodeMode.`, node)
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}
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