File size: 2,488 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 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | export const numberMethods = new Set(["toFixed", "toPrecision", "toExponential", "toString"])
export const numberConstants = new Set(["MAX_SAFE_INTEGER", "MIN_SAFE_INTEGER", "MAX_VALUE", "MIN_VALUE", "EPSILON"])
export const numberStatics = new Set(["isInteger", "isFinite", "isNaN", "isSafeInteger", "parseInt", "parseFloat"])
export const invokeNumberMethod = (value: number, name: string, args: Array<unknown>, node: AstNode): unknown => {
const optNum = (index: number): number | undefined => {
const arg = args[index]
if (arg === undefined) return undefined
if (typeof arg !== "number") throw new InterpreterRuntimeError(`Number.${name} expects a number argument.`, node)
return arg
}
let result: unknown
switch (name) {
case "toFixed":
result = value.toFixed(optNum(0))
break
case "toExponential":
result = value.toExponential(optNum(0))
break
case "toPrecision": {
const digits = optNum(0)
result = digits === undefined ? value.toString() : value.toPrecision(digits)
break
}
case "toString": {
const radix = optNum(0)
if (radix !== undefined && (radix < 2 || radix > 36)) {
throw new InterpreterRuntimeError("Number.toString radix must be between 2 and 36.", node)
}
result = value.toString(radix)
break
}
default:
throw new InterpreterRuntimeError(`Number method '${name}' is not available in CodeMode.`, node)
}
return boundedData(result, `Number.${name} result`)
}
export const invokeNumberStatic = (name: string, args: Array<unknown>, node: AstNode): unknown => {
const value = args[0]
switch (name) {
case "isInteger":
return Number.isInteger(value)
case "isFinite":
return Number.isFinite(value)
case "isNaN":
return Number.isNaN(value)
case "isSafeInteger":
return Number.isSafeInteger(value)
case "parseInt": {
const radix = args[1]
if (radix !== undefined && typeof radix !== "number") {
throw new InterpreterRuntimeError("Number.parseInt expects a numeric radix.", node)
}
return parseInt(coerceToString(value), radix)
}
case "parseFloat":
return parseFloat(coerceToString(value))
default:
throw new InterpreterRuntimeError(`Number.${name} is not available in CodeMode.`, node)
}
}
import { type AstNode, InterpreterRuntimeError } from "../interpreter/model.js"
import { boundedData, coerceToString } from "./value.js"
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