52 lines
2.8 KiB
TypeScript
52 lines
2.8 KiB
TypeScript
/** Validate and capture the binding names available to one program. */
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import { DUNDER_MEMBER, PORTABLE_RESERVED_WORDS, RESERVED_BINDING_GLOBALS, RESERVED_ERROR_MEMBERS } from '@deepseek-ai/dsh-ptc-runtime'
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import type { PtcBindingNamespace, PtcRunRequest } from '@deepseek-ai/dsh-ptc-runtime'
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const IDENTIFIER = /^[A-Za-z_][A-Za-z0-9_]*$/
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/**
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* Reject unusable namespaces before starting a process.
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* @param request - Host-owned binding declarations.
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* @returns Namespaces keyed by their declared global.
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*/
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export function validateBindings(request: PtcRunRequest): Map<string, PtcBindingNamespace> {
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const bindings = new Map<string, PtcBindingNamespace>()
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for (const namespace of request.bindings) {
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if (!IDENTIFIER.test(namespace.global) || PORTABLE_RESERVED_WORDS.has(namespace.global)) {
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throw new Error(`dsh-ptc-runtime-node: binding global ${JSON.stringify(namespace.global)} is not a usable identifier`)
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}
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// RESERVED_BINDING_GLOBALS is the seam's shared backend-owned set:
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// `console` is THIS backend's log-capture slot; the dunder entries exist
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// for the Python side — its seeded/wrapped slots plus the `__debug__`
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// compile-time constant — refused here too so the namespace list stays
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// portable across backends. The seam declaration is the single home for
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// why each entry is reserved.
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if (RESERVED_BINDING_GLOBALS.has(namespace.global)) {
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throw new Error(`dsh-ptc-runtime-node: reserved binding global ${JSON.stringify(namespace.global)}`)
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}
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if (bindings.has(namespace.global)) {
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throw new Error(`dsh-ptc-runtime-node: duplicate binding global ${JSON.stringify(namespace.global)}`)
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}
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bindings.set(namespace.global, namespace)
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}
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const errorClassNames = new Set<string>()
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for (const namespace of request.bindings) {
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const descriptor = namespace.errorClass
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if (!descriptor) continue
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if (!IDENTIFIER.test(descriptor.name) || PORTABLE_RESERVED_WORDS.has(descriptor.name)) {
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throw new Error(`dsh-ptc-runtime-node: binding error class ${JSON.stringify(descriptor.name)} is not a usable identifier`)
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}
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if (RESERVED_BINDING_GLOBALS.has(descriptor.name)) {
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throw new Error(`dsh-ptc-runtime-node: reserved binding global ${JSON.stringify(descriptor.name)}`)
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}
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if (bindings.has(descriptor.name) || errorClassNames.has(descriptor.name)) {
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throw new Error(`dsh-ptc-runtime-node: duplicate injected global ${JSON.stringify(descriptor.name)}`)
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}
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const member = descriptor.memberNameProperty
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if (member.length === 0 || RESERVED_ERROR_MEMBERS.has(member) || DUNDER_MEMBER.test(member)) {
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throw new Error(`dsh-ptc-runtime-node: binding error member property ${JSON.stringify(descriptor.memberNameProperty)} is not usable`)
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}
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errorClassNames.add(descriptor.name)
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}
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return bindings
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}
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