Mercurial > octave-libtiff
view libinterp/octave-value/ov-fcn.h @ 27873:020d0e8f7ac6
reafactor mlock, munlock, and mislocked functions
* interpreter.h, interpreter.cc (interpreter::mlock,
interpreter::munlock, interpreter::mislocked): Revamp. Provide
versions that act on current function in the call stack (possibly
skipping the first found) and versions of munlock and mislocked that
accept function names.
* call-stack.h, call-stack.cc (call_stack::current): Delete.
(call_stack::current_function): New function. Change all uses of
call_stack::current to use this function instead.
(call_stack::caller): Delete.
(call_stack::caller_function): New function, define in terms of
current_function. Change all uses of call_stack::caller to use this
function instead.
(call_stack::mlock): Delete.
* ov-fcn.h (octave_function::islocked): Now const.
* pt-eval.h, pt-eval.cc (tree_evaluator::current_function,
tree_evaluator::current_function_name, tree_evaluator::mlock):
New argument, SKIP_FIRST.
(tree_evaluator::munlock, tree_evaluator::mislocked): New functions.
* variables.cc (Fmlock, Fmunlock, Fmislocked): Simplify. Decode
arguments and call interpreter fucntions.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 17 Dec 2019 12:26:09 -0500 |
parents | 6e9034836239 |
children | b442ec6dda5c |
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/* Copyright (C) 1996-2019 John W. Eaton This file is part of Octave. Octave is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <https://www.gnu.org/licenses/>. */ #if ! defined (octave_ov_fcn_h) #define octave_ov_fcn_h 1 #include "octave-config.h" #include <string> #include "oct-time.h" #include "str-vec.h" #include "ovl.h" #include "ov-base.h" #include "ov-typeinfo.h" #include "symscope.h" namespace octave { class stack_frame; class tree_evaluator; class tree_walker; } // Functions. class OCTINTERP_API octave_function : public octave_base_value { public: octave_function (void) : relative (false), locked (false), private_function (false), xdispatch_class (), xpackage_name (), my_name (), my_dir_name (), doc () { } // No copying! octave_function (const octave_function& f) = delete; octave_function& operator = (const octave_function& f) = delete; ~octave_function (void) = default; octave_base_value * clone (void) const; octave_base_value * empty_clone (void) const; bool is_defined (void) const { return true; } bool is_function (void) const { return true; } virtual bool is_system_fcn_file (void) const { return false; } virtual std::string fcn_file_name (void) const { return ""; } virtual std::string src_file_name (void) const { return ""; } // The name to show in the profiler (also used as map-key). virtual std::string profiler_name (void) const { return name (); } virtual std::string parent_fcn_name (void) const { return ""; } virtual octave::symbol_scope parent_fcn_scope (void) const { return octave::symbol_scope (); } virtual void mark_fcn_file_up_to_date (const octave::sys::time&) { } virtual octave::symbol_scope scope (void) { return octave::symbol_scope (); } virtual octave::sys::time time_parsed (void) const { return octave::sys::time (static_cast<time_t> (0)); } virtual octave::sys::time time_checked (void) const { return octave::sys::time (static_cast<time_t> (0)); } virtual int call_depth (void) const { return 0; } virtual bool is_subfunction (void) const { return false; } bool is_class_constructor (const std::string& cname = "") const { return (is_classdef_constructor (cname) || is_legacy_constructor (cname)); } bool is_class_method (const std::string& cname = "") const { return (is_classdef_method (cname) || is_legacy_method (cname)); } virtual bool is_legacy_constructor (const std::string& = "") const { return false; } virtual bool is_classdef_constructor (const std::string& = "") const { return false; } virtual bool is_legacy_method (const std::string& = "") const { return false; } virtual bool is_classdef_method (const std::string& = "") const { return false; } virtual bool takes_varargs (void) const { return false; } virtual bool takes_var_return (void) const { return false; } // The next two functions are for dispatching to built-in // functions given built-in classes. virtual void push_dispatch_class (const std::string&) { } virtual bool handles_dispatch_class (const std::string&) const { return false; } void stash_dispatch_class (const std::string& nm) { xdispatch_class = nm; } std::string dispatch_class (void) const { return xdispatch_class; } void stash_package_name (const std::string& pack) { xpackage_name = pack; } std::string package_name (void) const { return xpackage_name; } virtual void mark_as_private_function (const std::string& cname = "") { private_function = true; xdispatch_class = cname; } bool is_private_function (void) const { return private_function; } bool is_private_function_of_class (const std::string& nm) const { return private_function && xdispatch_class == nm; } virtual bool is_anonymous_function_of_class (const std::string& = "") const { return false; } std::string dir_name (void) const { return my_dir_name; } void stash_dir_name (const std::string& dir) { my_dir_name = dir; } void lock (void) { this->lock_subfunctions (); locked = true; } void unlock (void) { this->unlock_subfunctions (); locked = false; } bool islocked (void) const { return locked; } virtual void lock_subfunctions (void) { } virtual void unlock_subfunctions (void) { } virtual void maybe_relocate_end (void) { } // Not valid until after the function is completley parsed. virtual bool has_subfunctions (void) const { return false; } virtual void stash_subfunction_names (const std::list<std::string>&) { } virtual std::list<std::string> subfunction_names (void) const { return std::list<std::string> (); } void mark_relative (void) { relative = true; } bool is_relative (void) const { return relative; } std::string name (void) const { return my_name; } std::string canonical_name (void) const { if (xpackage_name.empty ()) return my_name; else return xpackage_name + '.' + my_name; } void document (const std::string& ds) { doc = ds; } std::string doc_string (void) const { return doc; } virtual void unload (void) { } virtual void accept (octave::tree_walker&) { } virtual bool accepts_postfix_index (char type) const { return (type == '('); } virtual octave_value_list call (octave::tree_evaluator& tw, int nargout = 0, const octave_value_list& args = octave_value_list ()) = 0; virtual octave_value_list call (octave::tree_evaluator& tw, int nargout, const octave_value_list& args, octave::stack_frame *closure_context); protected: octave_function (const std::string& nm, const std::string& ds = "") : relative (false), locked (false), private_function (false), xdispatch_class (), my_name (nm), my_dir_name (), doc (ds) { } // TRUE if this function was found from a relative path element. bool relative; // TRUE if this function is tagged so that it can't be cleared. bool locked; // TRUE means this is a private function. bool private_function; // If this object is a class method or constructor, or a private // function inside a class directory, this is the name of the class // to which the method belongs. std::string xdispatch_class; // If this function is part of a package, this is the full name // of the package to which the function belongs. std::string xpackage_name; // The name of this function. std::string my_name; // The name of the directory in the path where we found this // function. May be relative. std::string my_dir_name; // The help text for this function. std::string doc; }; #endif