1 files changed, 90 insertions, 0 deletions
diff --git a/cli/cli.rs b/cli/cli.rs
new file mode 100644
index 000000000..42b2b29f8
--- /dev/null
+++ b/cli/cli.rs
@@ -0,0 +1,90 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+#![allow(unused_variables)]
+#![allow(dead_code)]
+
+use crate::errors::DenoResult;
+use crate::isolate_state::IsolateState;
+use crate::ops;
+use crate::permissions::DenoPermissions;
+use deno_core::deno_buf;
+use deno_core::deno_mod;
+use deno_core::Behavior;
+use deno_core::Op;
+use deno_core::StartupData;
+use std::sync::atomic::Ordering;
+use std::sync::Arc;
+
+// Buf represents a byte array returned from a "Op". The message might be empty
+// (which will be translated into a null object on the javascript side) or it is
+// a heap allocated opaque sequence of bytes.  Usually a flatbuffer message.
+pub type Buf = Box<[u8]>;
+
+/// Implements deno_core::Behavior for the main Deno command-line.
+pub struct Cli {
+  startup_data: Option<StartupData>,
+  pub state: Arc<IsolateState>,
+  pub permissions: Arc<DenoPermissions>, // TODO(ry) move to IsolateState
+}
+
+impl Cli {
+  pub fn new(
+    startup_data: Option<StartupData>,
+    state: Arc<IsolateState>,
+    permissions: DenoPermissions,
+  ) -> Self {
+    Self {
+      startup_data,
+      state,
+      permissions: Arc::new(permissions),
+    }
+  }
+
+  #[inline]
+  pub fn check_read(&self, filename: &str) -> DenoResult<()> {
+    self.permissions.check_read(filename)
+  }
+
+  #[inline]
+  pub fn check_write(&self, filename: &str) -> DenoResult<()> {
+    self.permissions.check_write(filename)
+  }
+
+  #[inline]
+  pub fn check_env(&self) -> DenoResult<()> {
+    self.permissions.check_env()
+  }
+
+  #[inline]
+  pub fn check_net(&self, filename: &str) -> DenoResult<()> {
+    self.permissions.check_net(filename)
+  }
+
+  #[inline]
+  pub fn check_run(&self) -> DenoResult<()> {
+    self.permissions.check_run()
+  }
+}
+
+impl Behavior for Cli {
+  fn startup_data(&mut self) -> Option<StartupData> {
+    self.startup_data.take()
+  }
+
+  fn resolve(&mut self, specifier: &str, referrer: deno_mod) -> deno_mod {
+    self
+      .state
+      .metrics
+      .resolve_count
+      .fetch_add(1, Ordering::Relaxed);
+    let mut modules = self.state.modules.lock().unwrap();
+    modules.resolve_cb(&self.state.dir, specifier, referrer)
+  }
+
+  fn dispatch(
+    &mut self,
+    control: &[u8],
+    zero_copy: deno_buf,
+  ) -> (bool, Box<Op>) {
+    ops::dispatch(self, control, zero_copy)
+  }
+}