Mercurial > octave
view libinterp/octave-value/ov-usr-fcn.h @ 27919:1891570abac8
update Octave Project Developers copyright for the new year
In files that have the "Octave Project Developers" copyright notice,
update for 2020.
author | John W. Eaton <jwe@octave.org> |
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date | Mon, 06 Jan 2020 22:29:51 -0500 |
parents | b442ec6dda5c |
children | bd51beb6205e |
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/* Copyright (C) 1996-2020 The Octave Project Developers See the file COPYRIGHT.md in the top-level directory of this distribution or <https://octave.org/COPYRIGHT.html/>. 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_usr_fcn_h) #define octave_ov_usr_fcn_h 1 #include "octave-config.h" #include <ctime> #include <string> #include "comment-list.h" #include "ovl.h" #include "ov-fcn.h" #include "ov-typeinfo.h" #include "symscope.h" #include "unwind-prot.h" class string_vector; class octave_value; namespace octave { class file_info; class stack_frame; class tree_parameter_list; class tree_statement_list; class tree_evaluator; class tree_expression; class tree_walker; #if defined (HAVE_LLVM) class jit_function_info; #endif } class octave_user_code : public octave_function { protected: octave_user_code (const std::string& fnm = "", const std::string& nm = "", const octave::symbol_scope& scope = octave::symbol_scope (), octave::tree_statement_list *cmds = nullptr, const std::string& ds = "") : octave_function (nm, ds), m_scope (scope), file_name (fnm), t_parsed (static_cast<time_t> (0)), t_checked (static_cast<time_t> (0)), m_file_info (nullptr), cmd_list (cmds) { if (m_scope) m_scope.set_user_code (this); } public: // No copying! octave_user_code (const octave_user_code& f) = delete; octave_user_code& operator = (const octave_user_code& f) = delete; ~octave_user_code (void); bool is_user_code (void) const { return true; } std::string get_code_line (size_t line); std::deque<std::string> get_code_lines (size_t line, size_t num_lines); void cache_function_text (const std::string& text, const octave::sys::time& timestamp); octave::symbol_scope scope (void) { return m_scope; } void stash_fcn_file_name (const std::string& nm) { file_name = nm; } void mark_fcn_file_up_to_date (const octave::sys::time& t) { t_checked = t; } void stash_fcn_file_time (const octave::sys::time& t) { t_parsed = t; mark_fcn_file_up_to_date (t); } std::string fcn_file_name (void) const { return file_name; } octave::sys::time time_parsed (void) const { return t_parsed; } octave::sys::time time_checked (void) const { return t_checked; } virtual octave_value find_subfunction (const std::string&) const { return octave_value (); } virtual std::map<std::string, octave_value> subfunctions (void) const; octave::tree_statement_list * body (void) { return cmd_list; } octave_value dump (void) const; protected: void get_file_info (void); // Our symbol table scope. octave::symbol_scope m_scope; // The name of the file we parsed. std::string file_name; // The time the file was parsed. octave::sys::time t_parsed; // The time the file was last checked to see if it needs to be // parsed again. octave::sys::time t_checked; // Cached text of function or script code with line offsets // calculated. octave::file_info *m_file_info; // The list of commands that make up the body of this function. octave::tree_statement_list *cmd_list; }; // Scripts. class octave_user_script : public octave_user_code { public: octave_user_script (void); octave_user_script (const std::string& fnm, const std::string& nm, const octave::symbol_scope& scope = octave::symbol_scope (), octave::tree_statement_list *cmds = nullptr, const std::string& ds = ""); octave_user_script (const std::string& fnm, const std::string& nm, const octave::symbol_scope& scope = octave::symbol_scope (), const std::string& ds = ""); // No copying! octave_user_script (const octave_user_script& f) = delete; octave_user_script& operator = (const octave_user_script& f) = delete; ~octave_user_script (void) = default; octave_function * function_value (bool = false) { return this; } octave_user_script * user_script_value (bool = false) { return this; } octave_user_code * user_code_value (bool = false) { return this; } // Scripts and user functions are both considered "scripts" because // they are written in Octave's scripting language. bool is_user_script (void) const { return true; } // We don't need to override both forms of the call method. The using // declaration will avoid warnings about partially-overloaded virtual // functions. using octave_user_code::call; octave_value_list call (octave::tree_evaluator& tw, int nargout = 0, const octave_value_list& args = octave_value_list ()); void accept (octave::tree_walker& tw); private: DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA }; // User-defined functions. class octave_user_function : public octave_user_code { public: typedef std::map<std::string, octave_value> local_vars_map; octave_user_function (const octave::symbol_scope& scope = octave::symbol_scope (), octave::tree_parameter_list *pl = nullptr, octave::tree_parameter_list *rl = nullptr, octave::tree_statement_list *cl = nullptr, const local_vars_map& lviv = local_vars_map ()); // No copying! octave_user_function (const octave_user_function& fn) = delete; octave_user_function& operator = (const octave_user_function& fn) = delete; ~octave_user_function (void); octave_function * function_value (bool = false) { return this; } octave_user_function * user_function_value (bool = false) { return this; } octave_user_code * user_code_value (bool = false) { return this; } octave_user_function * define_param_list (octave::tree_parameter_list *t); octave_user_function * define_ret_list (octave::tree_parameter_list *t); void stash_fcn_location (int line, int col) { location_line = line; location_column = col; } int beginning_line (void) const { return location_line; } int beginning_column (void) const { return location_column; } void stash_fcn_end_location (int line, int col) { end_location_line = line; end_location_column = col; } int ending_line (void) const { return end_location_line; } int ending_column (void) const { return end_location_column; } void maybe_relocate_end (void); void stash_parent_fcn_name (const std::string& p) { parent_name = p; } void stash_parent_fcn_scope (const octave::symbol_scope& ps); void stash_leading_comment (octave::comment_list *lc) { lead_comm = lc; } void stash_trailing_comment (octave::comment_list *tc) { trail_comm = tc; } std::string profiler_name (void) const; std::string parent_fcn_name (void) const { return parent_name; } octave::symbol_scope parent_fcn_scope (void) const { return m_scope.parent_scope (); } void mark_as_system_fcn_file (void); bool is_system_fcn_file (void) const { return system_fcn_file; } bool is_user_function (void) const { return true; } void erase_subfunctions (void); bool takes_varargs (void) const; bool takes_var_return (void) const; void mark_as_private_function (const std::string& cname = ""); void lock_subfunctions (void); void unlock_subfunctions (void); std::map<std::string, octave_value> subfunctions (void) const; octave_value find_subfunction (const std::string& subfuns) const; bool has_subfunctions (void) const; void stash_subfunction_names (const std::list<std::string>& names); std::list<std::string> subfunction_names (void) const; octave_value_list all_va_args (const octave_value_list& args); void stash_function_name (const std::string& s) { my_name = s; } void mark_as_subfunction (void) { subfunction = true; } bool is_subfunction (void) const { return subfunction; } void mark_as_inline_function (void) { inline_function = true; } bool is_inline_function (void) const { return inline_function; } void mark_as_anonymous_function (void) { anonymous_function = true; } bool is_anonymous_function (void) const { return anonymous_function; } bool is_anonymous_function_of_class (const std::string& cname = "") const { return anonymous_function ? (cname.empty () ? (! dispatch_class ().empty ()) : cname == dispatch_class ()) : false; } // If we are a special expression, then the function body consists of exactly // one expression. The expression's result is the return value of the // function. bool is_special_expr (void) const { return is_inline_function () || is_anonymous_function (); } void mark_as_nested_function (void) { nested_function = true; } bool is_nested_function (void) const { return nested_function; } bool is_parent_function (void) const { return m_scope.is_parent (); } void mark_as_legacy_constructor (void) { class_constructor = legacy; } bool is_legacy_constructor (const std::string& cname = "") const { return (class_constructor == legacy ? (cname.empty () ? true : cname == dispatch_class ()) : false); } void mark_as_classdef_constructor (void) { class_constructor = classdef; } bool is_classdef_constructor (const std::string& cname = "") const { return (class_constructor == classdef ? (cname.empty () ? true : cname == dispatch_class ()) : false); } void mark_as_legacy_method (void) { class_method = legacy; } bool is_legacy_method (const std::string& cname = "") const { return (class_method == legacy ? (cname.empty () ? true : cname == dispatch_class ()) : false); } void mark_as_classdef_method (void) { class_method = classdef; } bool is_classdef_method (const std::string& cname = "") const { return (class_method == classdef ? (cname.empty () ? true : cname == dispatch_class ()) : false); } octave_value_list call (octave::tree_evaluator& tw, int nargout = 0, const octave_value_list& args = octave_value_list ()) { return call (tw, nargout, args, nullptr); } octave_value_list call (octave::tree_evaluator& tw, int nargout, const octave_value_list& args, octave::stack_frame *); octave::tree_parameter_list * parameter_list (void) { return param_list; } octave::tree_parameter_list * return_list (void) { return ret_list; } octave::comment_list * leading_comment (void) { return lead_comm; } octave::comment_list * trailing_comment (void) { return trail_comm; } const local_vars_map& local_var_init_vals (void) const { return m_local_var_init_vals; } // If is_special_expr is true, retrieve the sigular expression that forms the // body. May be null (even if is_special_expr is true). octave::tree_expression * special_expr (void); bool subsasgn_optimization_ok (void); void accept (octave::tree_walker& tw); #if defined (HAVE_LLVM) octave::jit_function_info * get_info (void) { return jit_info; } void stash_info (octave::jit_function_info *info) { jit_info = info; } #endif octave_value dump (void) const; private: enum class_method_type { none, legacy, classdef }; std::string ctor_type_str (void) const; std::string method_type_str (void) const; // List of arguments for this function. These are local variables. octave::tree_parameter_list *param_list; // List of parameters we return. These are also local variables in // this function. octave::tree_parameter_list *ret_list; // For anonymous function values inherited from parent scope. local_vars_map m_local_var_init_vals; // The comments preceding the FUNCTION token. octave::comment_list *lead_comm; // The comments preceding the ENDFUNCTION token. octave::comment_list *trail_comm; // Location where this function was defined. int location_line; int location_column; int end_location_line; int end_location_column; // The name of the parent function, if any. std::string parent_name; // True if this function came from a file that is considered to be a // system function. This affects whether we check the time stamp // on the file to see if it has changed. bool system_fcn_file; // The number of arguments that have names. int num_named_args; // TRUE means this is a subfunction of a primary function. bool subfunction; // TRUE means this is an inline function. bool inline_function; // TRUE means this is an anonymous function. bool anonymous_function; // TRUE means this is a nested function. bool nested_function; // TRUE means this function contains a nested function. bool parent_function; // Enum describing whether this function is the constructor for class object. class_method_type class_constructor; // Enum describing whether this function is a method for a class. class_method_type class_method; #if defined (HAVE_LLVM) octave::jit_function_info *jit_info; #endif void maybe_relocate_end_internal (void); void print_code_function_header (const std::string& prefix); void print_code_function_trailer (const std::string& prefix); // XXX FIXME (public) public: void restore_warning_states (void); DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA }; #endif