File size: 1,596 Bytes
89a2873 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | import {
type AstNode,
CodeModeFunction,
InterpreterRuntimeError,
supportedSyntaxMessage,
} from "../interpreter/model.js"
import { copyIn, copyOut } from "../tool-runtime.js"
export const jsonStatics = new Set(["stringify", "parse"])
export const invokeJsonMethod = (name: string, args: Array<unknown>, node: AstNode): unknown => {
if (!jsonStatics.has(name)) throw new InterpreterRuntimeError(`JSON.${name} is not available in CodeMode.`, node)
switch (name) {
case "stringify": {
const replacer = args[1]
if (Array.isArray(replacer) || replacer instanceof CodeModeFunction) {
throw new InterpreterRuntimeError(
"JSON.stringify replacers are not supported in CodeMode.",
node,
"UnsupportedSyntax",
[supportedSyntaxMessage],
)
}
const space = args[2]
const indent = typeof space === "number" || typeof space === "string" ? space : undefined
return JSON.stringify(copyOut(copyIn(args[0], "JSON.stringify value")), null, indent)
}
case "parse": {
const text = args[0]
if (typeof text !== "string") throw new InterpreterRuntimeError("JSON.parse expects a string.", node)
try {
return copyIn(JSON.parse(text), "JSON.parse result")
} catch (error) {
throw new InterpreterRuntimeError(
`JSON.parse received invalid JSON: ${error instanceof Error ? error.message : String(error)}`,
node,
).as("SyntaxError")
}
}
}
throw new InterpreterRuntimeError(`JSON.${name} is not available in CodeMode.`, node)
}
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