nodejs
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‎src/module_wrap.cc‎
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+1Lines changed: 1 addition & 0 deletions b/Collapse file
‎src/module_wrap.cc‎
Copy file name to clipboardExpand all lines: src/module_wrap.cc
+1Lines changed: 1 addition & 0 deletions
diff --git a/Collapse file
‎test/es-module/test-vm-synthetic-module-leak.js‎
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‎test/es-module/test-vm-synthetic-module-leak.js‎
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+23Lines changed: 23 additions & 0 deletions
@@ -64,6 +64,7 @@ ModuleWrap::ModuleWrap(Environment* env,
   if (!synthetic_evaluation_step->IsUndefined()) {
     synthetic_ = true;
   }
+  MakeWeak();
 }
 
 ModuleWrap::~ModuleWrap() {
 
@@ -0,0 +1,23 @@
+// Flags: --experimental-vm-modules --max-old-space-size=16
+'use strict';
+
+// This tests that vm.SyntheticModule does not leak.
+// See https://github.com/nodejs/node/issues/44211
+require('../common');
+const vm = require('vm');
+
+let count = 0;
+async function createModule() {
+  // Try to reach the maximum old space size.
+  const m = new vm.SyntheticModule(['bar'], () => {
+    m.setExport('bar', new Array(512).fill('----'));
+  });
+  await m.link(() => {});
+  await m.evaluate();
+  if (count++ < 4 * 1024) {
+    setTimeout(createModule, 1);
+  }
+  return m;
+}
+
+createModule();
Original file line number	Diff line number	Diff line change
`@@ -64,6 +64,7 @@ ModuleWrap::ModuleWrap(Environment* env,`
`64`	`64`	`if (!synthetic_evaluation_step->IsUndefined()) {`
`65`	`65`	`synthetic_ = true;`
`66`	`66`	`}`
	`67`	`+ MakeWeak();`
`67`	`68`	`}`
`68`	`69`
`69`	`70`	`ModuleWrap::~ModuleWrap() {`