fix(tools): cap Python SDK list nesting at CPython's bracket limit

A schema nesting arrays past ~200 levels rendered a `list[list[...]]` chain CPython's tokenizer rejects outright (`too many nested parentheses`), so the SDK block was not valid Python at all — the failure docstring escaping in the same file already guards against. The chain now degrades to `Any` at 180 levels; nesting restarts per TypedDict field, since a field annotation is its own logical line. Unions and nested objects are unaffected: neither accumulates open brackets. Also aligns the unreachable SDK_RENDERERS guard message with the two reachable ones, and corrects a test comment that still said class docstring.
2026-08-05 14:59:52 +08:00
parent b83c15b1ed
commit 95da760696
6 changed files with 73 additions and 18 deletions
@@ -795,7 +795,7 @@ export class ToolRegistry extends Service {
          const render = SDK_RENDERERS[runtime.language]
          /* v8 ignore next 3 -- requireCodeRuntime rejects an unknown language before this ever runs. */
          if (!Object.hasOwn(SDK_RENDERERS, runtime.language) || render === undefined) {
-            throw new Error(`dsh-tools: no SDK renderer registered for runtime language "${runtime.language}"`)
+            throw new Error(`dsh-tools: no SDK renderer registered for runtime language ${JSON.stringify(runtime.language)} (known: ${Object.keys(SDK_RENDERERS).map(name => JSON.stringify(name)).join(', ')})`)
          }
          return render(this.sdkSchemas(context.scope))
        },