imccyu
793ce790a6
With replScoped: true, persistent-in-memory runs each call as a separate VM Script in one retained context. Each call starts with copies of the top-level bindings left by earlier calls, so a later call may declare any earlier name again with any keyword while earlier functions and still-running code keep their values. Results, top-level await, errors and asynchronous failures follow the existing REPL evaluator; modules load only through dynamic import(), resolved from the environment's first working directory. The control protocol moves to version 3; the upgrade guide covers preinstalled bootstraps and the new PtcProgramFormat member. The Agent Note records the decision and its comparison with node:repl and vm-script, and the ptc-scoped-repl snapshot pins the model guidance.
28 lines
1.4 KiB
TypeScript
28 lines
1.4 KiB
TypeScript
/** Select one child evaluator without process-lifetime policy. */
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import type { PtcProgramFormat } from '@deepseek-ai/dsh-ptc-runtime'
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import { createAsyncFunctionEvaluator } from './async-function.ts'
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import { createReplEvaluator } from './repl.ts'
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import { createScopedReplEvaluator } from './scoped-repl-evaluator.ts'
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import { createVmScriptEvaluator } from './vm-script.ts'
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import type { ProgramEvaluator, ProgramEvaluatorOptions, ProgramImportHandler } from './types.ts'
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const evaluators: Record<PtcProgramFormat, (options: ProgramEvaluatorOptions) => ProgramEvaluator> = {
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'function-body': createAsyncFunctionEvaluator,
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repl: createReplEvaluator,
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script: createVmScriptEvaluator,
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'scoped-repl': createScopedReplEvaluator,
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}
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/**
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* Create the selected evaluator for either a fresh or retained process.
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* @param format - Evaluation syntax selected by the host.
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* @param reportError - Asynchronous diagnostics attributed to the active evaluation.
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* @param importHandler - Runner-local import handling; omission uses Node's loader.
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* @returns Globals, evaluation entry point, and resource cleanup.
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*/
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export function createProgramEvaluator(
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format: PtcProgramFormat, reportError: (message: string) => void, importHandler?: ProgramImportHandler,
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): ProgramEvaluator {
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return evaluators[format]({ reportError, ...importHandler === undefined ? {} : { importHandler } })
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}
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