Mercurial > octave
view libinterp/parse-tree/pt-unop.h @ 23084:ef4d915df748
maint: Merge stable to default.
author | John W. Eaton <jwe@octave.org> |
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date | Mon, 23 Jan 2017 14:27:48 -0500 |
parents | 4e3d47dc7e25 e9a0469dedd9 |
children | 092078913d54 |
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/* Copyright (C) 1996-2016 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 <http://www.gnu.org/licenses/>. */ #if ! defined (octave_pt_unop_h) #define octave_pt_unop_h 1 #include "octave-config.h" #include <string> class octave_value; class octave_value_list; class octave_lvalue; #include "pt-exp.h" #include "symtab.h" namespace octave { class tree_walker; // Unary expressions. class tree_unary_expression : public tree_expression { public: tree_unary_expression (int l = -1, int c = -1, octave_value::unary_op t = octave_value::unknown_unary_op) : tree_expression (l, c), op (0), etype (t) { } tree_unary_expression (tree_expression *e, int l = -1, int c = -1, octave_value::unary_op t = octave_value::unknown_unary_op) : tree_expression (l, c), op (e), etype (t) { } // No copying! tree_unary_expression (const tree_unary_expression&) = delete; tree_unary_expression& operator = (const tree_unary_expression&) = delete; ~tree_unary_expression (void) { delete op; } bool is_unary_expression (void) const { return true; } bool has_magic_end (void) const { return (op && op->has_magic_end ()); } tree_expression *operand (void) { return op; } std::string oper (void) const; octave_value::unary_op op_type (void) const { return etype; } protected: // The operand for the expression. tree_expression *op; // The type of the expression. octave_value::unary_op etype; }; // Prefix expressions. class tree_prefix_expression : public tree_unary_expression { public: tree_prefix_expression (int l = -1, int c = -1) : tree_unary_expression (l, c, octave_value::unknown_unary_op) { } tree_prefix_expression (tree_expression *e, int l = -1, int c = -1, octave_value::unary_op t = octave_value::unknown_unary_op) : tree_unary_expression (e, l, c, t) { } // No copying! tree_prefix_expression (const tree_prefix_expression&) = delete; tree_prefix_expression& operator = (const tree_prefix_expression&) = delete; ~tree_prefix_expression (void) = default; bool rvalue_ok (void) const { return true; } octave_value rvalue1 (int nargout = 1); octave_value_list rvalue (int nargout); tree_expression *dup (symbol_table::scope_id scope, symbol_table::context_id context) const; void accept (tree_walker& tw); std::string profiler_name (void) const { return "prefix " + oper (); } }; // Postfix expressions. class tree_postfix_expression : public tree_unary_expression { public: tree_postfix_expression (int l = -1, int c = -1) : tree_unary_expression (l, c, octave_value::unknown_unary_op) { } tree_postfix_expression (tree_expression *e, int l = -1, int c = -1, octave_value::unary_op t = octave_value::unknown_unary_op) : tree_unary_expression (e, l, c, t) { } // No copying! tree_postfix_expression (const tree_postfix_expression&) = delete; tree_postfix_expression& operator = (const tree_postfix_expression&) = delete; ~tree_postfix_expression (void) = default; bool rvalue_ok (void) const { return true; } octave_value rvalue1 (int nargout = 1); octave_value_list rvalue (int nargout); tree_expression *dup (symbol_table::scope_id scope, symbol_table::context_id context) const; void accept (tree_walker& tw); std::string profiler_name (void) const { return "postfix " + oper (); } }; } #if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS) OCTAVE_DEPRECATED ("use 'octave::tree_unary_expression' instead") typedef octave::tree_unary_expression tree_unary_expression; OCTAVE_DEPRECATED ("use 'octave::tree_prefix_expression' instead") typedef octave::tree_prefix_expression tree_prefix_expression; OCTAVE_DEPRECATED ("use 'octave::tree_postfix_expression' instead") typedef octave::tree_postfix_expression tree_postfix_expression; #endif #endif