From 0c15c1e61303e3d80152cecfaf3c0712c381de77 Mon Sep 17 00:00:00 2001
From: Evan Wallace <evan.exe@gmail.com>
Date: Sun, 18 Dec 2022 03:10:26 +0000
Subject: [PATCH] implement test262 json module loading

---
 scripts/test262.js | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/scripts/test262.js b/scripts/test262.js
index f846568497d..30977ca7a51 100644
--- a/scripts/test262.js
+++ b/scripts/test262.js
@@ -552,7 +552,14 @@ async function runCodeInHarness(yaml, code, importDir) {
       let module = moduleCache.get(modulePath)
       if (!module) {
         const code = fs.readFileSync(modulePath, 'utf8')
-        module = new vm.SourceTextModule(code + unique(), { context, importModuleDynamically })
+        if (modulePath.endsWith('json')) {
+          const evaluate = function () {
+            this.setExport('default', vm.runInContext('JSON.parse', context)(code))
+          }
+          module = new vm.SyntheticModule(['default'], evaluate, { context })
+        } else {
+          module = new vm.SourceTextModule(code + unique(), { context, importModuleDynamically })
+        }
         moduleCache.set(modulePath, module)
       }
       return module
@@ -567,9 +574,13 @@ async function runCodeInHarness(yaml, code, importDir) {
       let promise = dynamicImportCache.get(where)
       if (!promise) {
         const module = findModule(where, context)
-        promise = module.link(linker)
-          .then(() => module.evaluate())
-          .then(() => module)
+        if (module.status === 'unlinked') {
+          promise = module.link(linker)
+            .then(() => module.evaluate())
+            .then(() => module)
+        } else {
+          promise = Promise.resolve(module)
+        }
         dynamicImportCache.set(where, promise)
       }
       return promise