store local init vars for anonymous functions in handle, not function object This change is step toward revamping function handles by storing variable init values for anonymous functions in function handle objects instead of in the corresponding functions. * call-stack.h, call-stack.cc (call_stack::push): New overload that accepts local variable map in addition to function object. * stack-frame.h (user_fcn_stack_frame::user_fcn_stack_frame): New constructor that accepts local variable map in addition to function object. (stack_frame::local_vars_map): New typedef. * ov-fcn-handle.h, ov-fcn-handle.cc (octave_fcn_handle::m_local_vars): New data member. (octave_fcn_handle::octave_fcn_handle): Update existing constructors and provide new one to construct handle from function object and local variable map. (octave_fcn_handle::call): If m_local_vars is defined, push stack frame with that info and execute function here. (octave_fcn_handle::workspace): Create workspace struct from m_local_vars instead of getting that info from the function object. (octave_fcn_handle::parse_anon_fcn_handle): Copy m_local_vars from new function handle object. (octave_fcn_handle::save_ascii, octave_fcn_handle::save_binary, octave_fcn_handle::save_hdf5): Use m_local_vars instead of getting info from function object. * ov-usr-fcn.h, ov-usr-fcn.cc (octave_user_function::local_vars_map): Delete typedef. (octave_user_function::m_local_var_init_vals): Delete data member and all uses. (octave_user_function::local_var_init_vals): Delete. * pt-eval.h, pt-eval.cc (tree_evaluator::push_stack_frame): New overload that accepts local variable map and user function. (tree_evaluator::init_local_fcn_vars): Delete function and all uses. * pt-fcn-handle.cc (tree_anon_fcn_handle::evaluate): Store local variables in function handle object instead of function object.

--- a/libinterp/corefcn/call-stack.cc	Mon Mar 30 10:43:47 2020 -0400
+++ b/libinterp/corefcn/call-stack.cc	Mon Mar 30 15:14:10 2020 -0400
@@ -401,6 +401,25 @@
     m_cs.push_back (new_frame);
   }
 
+  void call_stack::push (octave_user_function *fcn,
+                         const stack_frame::local_vars_map& local_vars)
+  {
+    size_t prev_frame = m_curr_frame;
+    m_curr_frame = m_cs.size ();
+
+    // m_max_stack_depth should never be less than zero.
+    if (m_curr_frame > static_cast<size_t> (m_max_stack_depth))
+      error ("max_stack_depth exceeded");
+
+    std::shared_ptr<stack_frame> slink = get_static_link (prev_frame);
+
+    std::shared_ptr<stack_frame>
+      new_frame (stack_frame::create (m_evaluator, fcn, m_curr_frame, slink,
+                                      local_vars));
+
+    m_cs.push_back (new_frame);
+  }
+
   void call_stack::push (octave_user_script *script)
   {
     size_t prev_frame = m_curr_frame;