Introduce gin_shell

This CL adds a simple shell program for Gin to make edit/test/debug cycle
faster. The shell excutes a list of scripts from the command line and loads any
requested AMD modules relative to the current working directory.

This CL will also let us remove the ugly code in
https://codereview.chromium.org/69843003/diff/240001/mojo/public/bindings/js/test/run_js_tests.cc
because we now know how to file modules via the file system. Eventually for
Mojo, we'll want to use a net_module_provider (instead of the
file_module_provider included in this CL) to load additional AMD modules off
the network.

BUG=317398
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/74753002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235750 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 12 insertions, 1 deletions

diff --git a/gin/runner.h b/gin/runner.h
index 3e999e1f..fa41259 100644
--- a/gin/runner.h
+++ b/gin/runner.h
@@ -6,11 +6,14 @@
 #define GIN_RUNNER_H_
 
 #include <string>
+
+#include "base/memory/weak_ptr.h"
 #include "gin/context_holder.h"
 
 namespace gin {
 
 class Runner;
+class TryCatch;
 
 class RunnerDelegate {
  public:
@@ -19,8 +22,10 @@ class RunnerDelegate {
 
   // Returns the template for the global object.
   virtual v8::Handle<v8::ObjectTemplate> GetGlobalTemplate(Runner* runner);
-
   virtual void DidCreateContext(Runner* runner);
+  virtual void WillRunScript(Runner* runner, v8::Handle<v8::Script> script);
+  virtual void DidRunScript(Runner* runner, v8::Handle<v8::Script> script);
+  virtual void UnhandledException(Runner* runner, TryCatch& try_catch);
 };
 
 class Runner : public ContextHolder {
@@ -35,6 +40,10 @@ class Runner : public ContextHolder {
     return context()->Global();
   }
 
+  base::WeakPtr<Runner> GetWeakPtr() {
+    return weak_factory_.GetWeakPtr();
+  }
+
   class Scope {
    public:
     explicit Scope(Runner* runner);
@@ -52,6 +61,8 @@ class Runner : public ContextHolder {
 
   RunnerDelegate* delegate_;
 
+  base::WeakPtrFactory<Runner> weak_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(Runner);
 };