Work around rollup ts plugin ES issue

This prevents the bahaviour documented in
ezolenko/rollup-plugin-typescript2#170 from
happening. Namely, a _virtual/tslib.js file would be emitted, which
confuses NodeJS because we expect all ES modules to have the .mjs
extension.

The previous syntax feels more elegant though, so I think it should be
re-enabled once the bug is resolved. Also, there's no guarantee that
this issue can alway be worked around so easily. Issue tracking is
available at
ezolenko/rollup-plugin-typescript2#282.

src/issue/issue.ts

@@ -60,19 +60,41 @@ export default async function issueVerifiableCredential(
     internalOptions.fetch = fallbackFetch;
   }
   // credentialClaims should contain all the claims, but not the context.
-  const {
-    "@context": subjectClaimsContext,
-    ...contextlessSubjectClaims
-  } = subjectClaims;
-  const {
-    "@context": credentialClaimsContext,
-    ...contextlessCredentialClaims
-  } = credentialClaims !== undefined ? credentialClaims : { "@context": [] };
+  // const {
+  //   "@context": subjectClaimsContext,
+  //   ...contextlessSubjectClaims
+  // } = subjectClaims;
+  // The following lines refactor the previous deconstruction in order to work
+  // around a misalignment between `rollup-plugin-typescript2` and NodeJS.
+  // Issue tracking: https://github.com/ezolenko/rollup-plugin-typescript2/issues/282
+  const contextlessSubjectClaims = { ...subjectClaims };
+  delete contextlessSubjectClaims["@context"];
+  const subjectClaimsContext = subjectClaims["@context"];
+
+  // const {
+  //   "@context": credentialClaimsContext,
+  //   ...contextlessCredentialClaims
+  // } = credentialClaims !== undefined ? credentialClaims : { "@context": [] };
+  // The following lines refactor the previous deconstruction in order to work
+  // around a misalignment between `rollup-plugin-typescript2` and NodeJS.
+  // Issue tracking: https://github.com/ezolenko/rollup-plugin-typescript2/issues/282
   // When we add proper JSONLD parsing support, the following should be replaced.
-  const {
-    type: credentialTypeClaims,
-    ...nonTypeCredentialClaims
-  } = contextlessCredentialClaims;
+  const contextlessCredentialClaims = { ...credentialClaims };
+  delete contextlessCredentialClaims["@context"];
+  const credentialClaimsContext =
+    credentialClaims !== undefined ? credentialClaims["@context"] : [];
+
+  // const {
+  //   type: credentialTypeClaims,
+  //   ...nonTypeCredentialClaims
+  // } = contextlessCredentialClaims;
+  // The following lines refactor the previous deconstruction in order to work
+  // around a misalignment between `rollup-plugin-typescript2` and NodeJS.
+  // Issue tracking: https://github.com/ezolenko/rollup-plugin-typescript2/issues/282
+  const nonTypeCredentialClaims = { ...contextlessCredentialClaims };
+  delete nonTypeCredentialClaims.type;
+  const credentialTypeClaims = contextlessCredentialClaims.type;
+
   let credentialTypes = [];
   if (credentialTypeClaims !== undefined) {
     credentialTypes = Array.isArray(credentialTypeClaims)

src/lookup/derive.ts

@@ -114,7 +114,13 @@ export default async function getVerifiableCredentialAllFromShape(
     internalOptions.fetch = fallbackFetch;
   }
   // credentialClaims should contain all the claims, but not the context.
-  const { "@context": claimsContext, ...credentialClaims } = vcShape;
+  // const { "@context": claimsContext, ...credentialClaims } = vcShape;
+  // The following lines refactor the previous deconstruction in order to work
+  // around a misalignment between `rollup-plugin-typescript2` and NodeJS.
+  // Issue tracking: https://github.com/ezolenko/rollup-plugin-typescript2/issues/282
+  const credentialClaims = { ...vcShape };
+  delete credentialClaims["@context"];
+  const claimsContext = vcShape["@context"];
   const credentialRequestBody = {
     // See https://w3c-ccg.github.io/vc-http-api/holder.html
     credential: {