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/** * TypeScript AST Transformer for useDeno hook. */
import ts from 'https://esm.sh/typescript@4.0.5'
const f = ts.factory
export default function transformReactUseDenoHook(sf: ts.SourceFile, node: ts.Node, options:{index:number, signUseDeno: (id: string) => string}): ts.VisitResult<ts.Node> {    if (isUseDenoHookCallExpr(node)) {        const args = node.arguments as unknown as Array<any>        const id = options.signUseDeno(`${sf.fileName}:useDeno#${options.index++}`)        const arg3 = f.createStringLiteral(id)        if (args.length === 1) {            args.push(f.createFalse())        }        if (args.length === 2) {            args.push(f.createVoidZero())        }        if (args.length === 3) {            args.push(arg3)        } else {            args[3] = arg3        }        return node    }}
function isUseDenoHookCallExpr(node: ts.Node): node is ts.CallExpression {    if (ts.isCallExpression(node)) {        const { expression, arguments: [arg0] } = node        if (ts.isFunctionLike(arg0)) {            if (ts.isIdentifier(expression)) {                return expression.text === 'useDeno'            } else if (ts.isPropertyAccessExpression(expression)) {                return expression.name.text === 'useDeno'            }        }    }    return false}