1 files changed, 31 insertions, 0 deletions
diff --git a/src/bun.js/builtins/js/ProcessObjectInternals.js b/src/bun.js/builtins/js/ProcessObjectInternals.js
index c1898d686..d9ab6d88a 100644
--- a/src/bun.js/builtins/js/ProcessObjectInternals.js
+++ b/src/bun.js/builtins/js/ProcessObjectInternals.js
@@ -23,6 +23,37 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+
+function binding(bindingName) {
+  "use strict";
+  bindingName !== "constants" &&
+    @throwTypeError(
+      'process.binding() is not supported in Bun. If that breaks something, please file an issue and include a reproducible code sample.'
+    );
+
+  var cache = globalThis.Symbol.for("process.bindings.constants");
+  var constants = globalThis[cache];
+  if (!constants) {
+    // TODO: make this less hacky.
+    // This calls require("node:fs").constants
+    // except, outside an ESM module.
+    const {constants: fs} = globalThis[globalThis.Symbol.for("Bun.lazy")](
+      "createImportMeta",
+      "node:process"
+    ).require(
+      "node:fs"
+    )
+    constants = {
+      fs,
+      zlib: {},
+      crypto: {},
+      os: @Bun._Os().constants,
+    };
+    globalThis[cache] = constants;
+  }
+  return constants;
+}
+
 function getStdioWriteStream(fd_, rawRequire) {
   var module = { path: "node:process", require: rawRequire };
   var require = path => module.require(path);