1 files changed, 21 insertions, 1 deletions
diff --git a/cli/ops/resources.rs b/cli/ops/resources.rs
index 3031725e2..4f49b2d9a 100644
--- a/cli/ops/resources.rs
+++ b/cli/ops/resources.rs
@@ -1,11 +1,12 @@
 // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
-use super::dispatch_json::{JsonOp, Value};
+use super::dispatch_json::{Deserialize, JsonOp, Value};
 use crate::op_error::OpError;
 use crate::state::State;
 use deno_core::*;
 
 pub fn init(i: &mut Isolate, s: &State) {
   i.register_op("op_resources", s.stateful_json_op(op_resources));
+  i.register_op("op_close", s.stateful_json_op(op_close));
 }
 
 fn op_resources(
@@ -17,3 +18,22 @@ fn op_resources(
   let serialized_resources = state.resource_table.entries();
   Ok(JsonOp::Sync(json!(serialized_resources)))
 }
+
+/// op_close removes a resource from the resource table.
+fn op_close(
+  state: &State,
+  args: Value,
+  _zero_copy: Option<ZeroCopyBuf>,
+) -> Result<JsonOp, OpError> {
+  #[derive(Deserialize)]
+  struct CloseArgs {
+    rid: i32,
+  }
+  let args: CloseArgs = serde_json::from_value(args)?;
+  let mut state = state.borrow_mut();
+  state
+    .resource_table
+    .close(args.rid as u32)
+    .ok_or_else(OpError::bad_resource_id)?;
+  Ok(JsonOp::Sync(json!({})))
+}