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-rw-r--r--cli/rt/10_dispatch_minimal.js8
1 files changed, 7 insertions, 1 deletions
diff --git a/cli/rt/10_dispatch_minimal.js b/cli/rt/10_dispatch_minimal.js
index a843d4a9e..dceb23e5f 100644
--- a/cli/rt/10_dispatch_minimal.js
+++ b/cli/rt/10_dispatch_minimal.js
@@ -50,7 +50,13 @@
function unwrapResponse(res) {
if (res.err != null) {
- throw new (core.getErrorClass(res.err.className))(res.err.message);
+ const ErrorClass = core.getErrorClass(res.err.className);
+ if (!ErrorClass) {
+ throw new Error(
+ `Unregistered error class: "${res.err.className}"\n ${res.err.message}\n Classes of errors returned from ops should be registered via Deno.core.registerErrorClass().`,
+ );
+ }
+ throw new ErrorClass(res.err.message);
}
return res.result;
}