mirror of https://github.com/Icinga/icinga2.git
1243 lines
31 KiB
Plaintext
1243 lines
31 KiB
Plaintext
%{
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#define YYDEBUG 1
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/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2017 Icinga Development Team (https://www.icinga.com/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#include "config/i2-config.hpp"
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#include "config/configcompiler.hpp"
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#include "config/expression.hpp"
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#include "config/applyrule.hpp"
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#include "config/objectrule.hpp"
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#include "base/value.hpp"
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#include "base/utility.hpp"
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#include "base/exception.hpp"
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#include "base/configtype.hpp"
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#include "base/exception.hpp"
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#include <sstream>
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#include <stack>
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#define YYLTYPE icinga::CompilerDebugInfo
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#define YYERROR_VERBOSE
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#define YYLLOC_DEFAULT(Current, Rhs, N) \
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do { \
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if (N) { \
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(Current).Path = YYRHSLOC(Rhs, 1).Path; \
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(Current).FirstLine = YYRHSLOC(Rhs, 1).FirstLine; \
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(Current).FirstColumn = YYRHSLOC(Rhs, 1).FirstColumn; \
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(Current).LastLine = YYRHSLOC(Rhs, N).LastLine; \
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(Current).LastColumn = YYRHSLOC(Rhs, N).LastColumn; \
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} else { \
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(Current).Path = YYRHSLOC(Rhs, 0).Path; \
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(Current).FirstLine = (Current).LastLine = \
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YYRHSLOC(Rhs, 0).LastLine; \
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(Current).FirstColumn = (Current).LastColumn = \
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YYRHSLOC(Rhs, 0).LastColumn; \
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} \
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} while (0)
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#define YY_LOCATION_PRINT(file, loc) \
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do { \
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std::ostringstream msgbuf; \
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msgbuf << loc; \
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std::string str = msgbuf.str(); \
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fputs(str.c_str(), file); \
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} while (0)
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#define YYINITDEPTH 10000
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using namespace icinga;
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template<typename T>
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static void MakeRBinaryOp(Expression** result, Expression *left, Expression *right, const DebugInfo& diLeft, const DebugInfo& diRight)
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{
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*result = new T(left, right, DebugInfoRange(diLeft, diRight));
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}
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%}
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%pure-parser
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%locations
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%defines
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%error-verbose
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%glr-parser
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%parse-param { std::vector<std::pair<Expression *, EItemInfo> > *llist }
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%parse-param { ConfigCompiler *context }
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%lex-param { void *scanner }
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%union {
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String *text;
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double num;
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bool boolean;
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icinga::Expression *expr;
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icinga::DictExpression *dexpr;
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CombinedSetOp csop;
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std::vector<String> *slist;
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std::vector<std::pair<Expression *, EItemInfo> > *llist;
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std::vector<Expression *> *elist;
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std::vector<std::pair<Expression *, Expression *> > *ebranchlist;
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std::pair<Expression *, Expression *> *ebranch;
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std::pair<String, Expression *> *cvitem;
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std::map<String, Expression *> *cvlist;
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icinga::ScopeSpecifier scope;
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}
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%token T_NEWLINE "new-line"
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%token <text> T_STRING
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%token <text> T_STRING_ANGLE
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%token <num> T_NUMBER
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%token <boolean> T_BOOLEAN
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%token T_NULL
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%token <text> T_IDENTIFIER
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%token <csop> T_SET "= (T_SET)"
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%token <csop> T_SET_ADD "+= (T_SET_ADD)"
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%token <csop> T_SET_SUBTRACT "-= (T_SET_SUBTRACT)"
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%token <csop> T_SET_MULTIPLY "*= (T_SET_MULTIPLY)"
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%token <csop> T_SET_DIVIDE "/= (T_SET_DIVIDE)"
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%token <csop> T_SET_MODULO "%= (T_SET_MODULO)"
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%token <csop> T_SET_XOR "^= (T_SET_XOR)"
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%token <csop> T_SET_BINARY_AND "&= (T_SET_BINARY_AND)"
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%token <csop> T_SET_BINARY_OR "|= (T_SET_BINARY_OR)"
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%token T_SHIFT_LEFT "<< (T_SHIFT_LEFT)"
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%token T_SHIFT_RIGHT ">> (T_SHIFT_RIGHT)"
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%token T_EQUAL "== (T_EQUAL)"
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%token T_NOT_EQUAL "!= (T_NOT_EQUAL)"
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%token T_IN "in (T_IN)"
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%token T_NOT_IN "!in (T_NOT_IN)"
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%token T_LOGICAL_AND "&& (T_LOGICAL_AND)"
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%token T_LOGICAL_OR "|| (T_LOGICAL_OR)"
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%token T_LESS_THAN_OR_EQUAL "<= (T_LESS_THAN_OR_EQUAL)"
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%token T_GREATER_THAN_OR_EQUAL ">= (T_GREATER_THAN_OR_EQUAL)"
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%token T_PLUS "+ (T_PLUS)"
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%token T_MINUS "- (T_MINUS)"
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%token T_MULTIPLY "* (T_MULTIPLY)"
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%token T_DIVIDE_OP "/ (T_DIVIDE_OP)"
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%token T_MODULO "% (T_MODULO)"
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%token T_XOR "^ (T_XOR)"
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%token T_BINARY_AND "& (T_BINARY_AND)"
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%token T_BINARY_OR "| (T_BINARY_OR)"
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%token T_LESS_THAN "< (T_LESS_THAN)"
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%token T_GREATER_THAN "> (T_GREATER_THAN)"
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%token T_VAR "var (T_VAR)"
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%token T_GLOBALS "globals (T_GLOBALS)"
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%token T_LOCALS "locals (T_LOCALS)"
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%token T_CONST "const (T_CONST)"
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%token T_DEFAULT "default (T_DEFAULT)"
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%token T_IGNORE_ON_ERROR "ignore_on_error (T_IGNORE_ON_ERROR)"
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%token T_CURRENT_FILENAME "current_filename (T_CURRENT_FILENAME)"
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%token T_CURRENT_LINE "current_line (T_CURRENT_LINE)"
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%token T_DEBUGGER "debugger (T_DEBUGGER)"
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%token T_USE "use (T_USE)"
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%token T_USING "__using (T_USING)"
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%token T_OBJECT "object (T_OBJECT)"
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%token T_TEMPLATE "template (T_TEMPLATE)"
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%token T_INCLUDE "include (T_INCLUDE)"
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%token T_INCLUDE_RECURSIVE "include_recursive (T_INCLUDE_RECURSIVE)"
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%token T_INCLUDE_ZONES "include_zones (T_INCLUDE_ZONES)"
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%token T_LIBRARY "library (T_LIBRARY)"
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%token T_APPLY "apply (T_APPLY)"
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%token T_TO "to (T_TO)"
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%token T_WHERE "where (T_WHERE)"
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%token T_IMPORT "import (T_IMPORT)"
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%token T_ASSIGN "assign (T_ASSIGN)"
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%token T_IGNORE "ignore (T_IGNORE)"
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%token T_FUNCTION "function (T_FUNCTION)"
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%token T_RETURN "return (T_RETURN)"
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%token T_BREAK "break (T_BREAK)"
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%token T_CONTINUE "continue (T_CONTINUE)"
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%token T_FOR "for (T_FOR)"
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%token T_IF "if (T_IF)"
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%token T_ELSE "else (T_ELSE)"
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%token T_WHILE "while (T_WHILE)"
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%token T_THROW "throw (T_THROW)"
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%token T_TRY "try (T_TRY)"
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%token T_EXCEPT "except (T_EXCEPT)"
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%token T_FOLLOWS "=> (T_FOLLOWS)"
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%token T_NULLARY_LAMBDA_BEGIN "{{ (T_NULLARY_LAMBDA_BEGIN)"
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%token T_NULLARY_LAMBDA_END "}} (T_NULLARY_LAMBDA_END)"
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%type <text> identifier
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%type <elist> rterm_items
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%type <elist> rterm_items_inner
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%type <slist> identifier_items
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%type <slist> identifier_items_inner
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%type <csop> combined_set_op
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%type <llist> statements
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%type <llist> lterm_items
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%type <llist> lterm_items_inner
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%type <expr> rterm
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%type <expr> rterm_array
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%type <dexpr> rterm_dict
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%type <dexpr> rterm_scope_require_side_effect
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%type <dexpr> rterm_scope
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%type <ebranchlist> else_if_branches
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%type <ebranch> else_if_branch
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%type <expr> rterm_side_effect
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%type <expr> rterm_no_side_effect
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%type <expr> rterm_no_side_effect_no_dict
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%type <expr> lterm
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%type <expr> object
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%type <expr> apply
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%type <expr> optional_rterm
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%type <text> target_type_specifier
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%type <boolean> default_specifier
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%type <boolean> ignore_specifier
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%type <cvlist> use_specifier
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%type <cvlist> use_specifier_items
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%type <cvitem> use_specifier_item
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%type <num> object_declaration
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%right T_FOLLOWS
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%right T_INCLUDE T_INCLUDE_RECURSIVE T_INCLUDE_ZONES T_OBJECT T_TEMPLATE T_APPLY T_IMPORT T_ASSIGN T_IGNORE T_WHERE
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%right T_FUNCTION T_FOR
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%left T_SET T_SET_ADD T_SET_SUBTRACT T_SET_MULTIPLY T_SET_DIVIDE T_SET_MODULO T_SET_XOR T_SET_BINARY_AND T_SET_BINARY_OR
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%left T_LOGICAL_OR
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%left T_LOGICAL_AND
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%left T_RETURN T_BREAK T_CONTINUE
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%left T_IDENTIFIER
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%left T_BINARY_OR
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%left T_XOR
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%left T_BINARY_AND
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%nonassoc T_EQUAL T_NOT_EQUAL
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%left T_IN T_NOT_IN
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%nonassoc T_LESS_THAN T_LESS_THAN_OR_EQUAL T_GREATER_THAN T_GREATER_THAN_OR_EQUAL
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%left T_SHIFT_LEFT T_SHIFT_RIGHT
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%left T_PLUS T_MINUS
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%left T_MULTIPLY T_DIVIDE_OP T_MODULO
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%left UNARY_MINUS UNARY_PLUS
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%right '!' '~'
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%left '.' '(' '['
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%left T_VAR T_THIS T_GLOBALS T_LOCALS
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%right ';' ','
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%right T_NEWLINE
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%{
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int yylex(YYSTYPE *lvalp, YYLTYPE *llocp, void *scanner);
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extern int yydebug;
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void yyerror(const YYLTYPE *locp, std::vector<std::pair<Expression *, EItemInfo> > *, ConfigCompiler *context, const char *err)
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{
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bool incomplete = context && context->m_Eof && (context->m_OpenBraces > 0);
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BOOST_THROW_EXCEPTION(ScriptError(err, *locp, incomplete));
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}
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int yyparse(std::vector<std::pair<Expression *, EItemInfo> > *llist, ConfigCompiler *context);
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static void BeginFlowControlBlock(ConfigCompiler *compiler, int allowedTypes, bool inherit)
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{
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if (inherit)
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allowedTypes |= compiler->m_FlowControlInfo.top();
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compiler->m_FlowControlInfo.push(allowedTypes);
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}
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static void EndFlowControlBlock(ConfigCompiler *compiler)
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{
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compiler->m_FlowControlInfo.pop();
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}
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static void UseFlowControl(ConfigCompiler *compiler, FlowControlType type, const CompilerDebugInfo& location)
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{
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int fci = compiler->m_FlowControlInfo.top();
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if ((type & fci) != type)
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BOOST_THROW_EXCEPTION(ScriptError("Invalid flow control statement.", location));
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}
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Expression *ConfigCompiler::Compile(void)
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{
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std::vector<std::pair<Expression *, EItemInfo> > llist;
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//yydebug = 1;
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m_IgnoreNewlines.push(false);
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BeginFlowControlBlock(this, 0, false);
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if (yyparse(&llist, this) != 0)
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return NULL;
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EndFlowControlBlock(this);
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m_IgnoreNewlines.pop();
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std::vector<Expression *> dlist;
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std::vector<std::pair<Expression *, EItemInfo> >::size_type num = 0;
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for (const auto& litem : llist) {
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if (!litem.second.SideEffect && num != llist.size() - 1) {
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yyerror(&litem.second.DebugInfo, NULL, NULL, "Value computed is not used.");
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}
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dlist.push_back(litem.first);
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num++;
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}
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DictExpression *expr = new DictExpression(dlist);
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expr->MakeInline();
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return expr;
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}
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#define scanner (context->GetScanner())
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%}
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%%
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script: statements
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{
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llist->swap(*$1);
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delete $1;
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}
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;
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statements: newlines lterm_items
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{
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$$ = $2;
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}
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| lterm_items
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;
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lterm_items: /* empty */
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{
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$$ = new std::vector<std::pair<Expression *, EItemInfo> >();
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}
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| lterm_items_inner
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| lterm_items_inner sep
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;
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lterm_items_inner: lterm %dprec 2
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{
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$$ = new std::vector<std::pair<Expression *, EItemInfo> >();
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EItemInfo info = { true, @1 };
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$$->push_back(std::make_pair($1, info));
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}
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| rterm_no_side_effect
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{
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$$ = new std::vector<std::pair<Expression *, EItemInfo> >();
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EItemInfo info = { false, @1 };
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$$->push_back(std::make_pair($1, info));
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}
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| lterm_items_inner sep lterm %dprec 1
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{
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if ($1)
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$$ = $1;
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else
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$$ = new std::vector<std::pair<Expression *, EItemInfo> >();
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if ($3) {
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EItemInfo info = { true, @3 };
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$$->push_back(std::make_pair($3, info));
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}
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}
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| lterm_items_inner sep rterm_no_side_effect %dprec 1
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{
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if ($1)
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$$ = $1;
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else
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$$ = new std::vector<std::pair<Expression *, EItemInfo> >();
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if ($3) {
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EItemInfo info = { false, @3 };
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$$->push_back(std::make_pair($3, info));
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}
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}
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;
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identifier: T_IDENTIFIER
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| T_STRING
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;
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object:
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{
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context->m_ObjectAssign.push(true);
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context->m_SeenAssign.push(false);
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context->m_SeenIgnore.push(false);
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context->m_Assign.push(0);
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context->m_Ignore.push(0);
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}
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object_declaration rterm optional_rterm use_specifier default_specifier ignore_specifier
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{
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BeginFlowControlBlock(context, FlowControlReturn, false);
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}
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rterm_scope_require_side_effect
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{
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EndFlowControlBlock(context);
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context->m_ObjectAssign.pop();
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bool abstract = $2;
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bool defaultTmpl = $6;
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if (!abstract && defaultTmpl)
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BOOST_THROW_EXCEPTION(ScriptError("'default' keyword is invalid for object definitions", DebugInfoRange(@2, @4)));
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bool seen_assign = context->m_SeenAssign.top();
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context->m_SeenAssign.pop();
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bool seen_ignore = context->m_SeenIgnore.top();
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context->m_SeenIgnore.pop();
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Expression *ignore = context->m_Ignore.top();
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context->m_Ignore.pop();
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Expression *assign = context->m_Assign.top();
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context->m_Assign.pop();
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Expression *filter = NULL;
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if (seen_assign) {
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if (ignore) {
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Expression *rex = new LogicalNegateExpression(ignore, DebugInfoRange(@2, @5));
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filter = new LogicalAndExpression(assign, rex, DebugInfoRange(@2, @5));
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} else
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filter = assign;
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} else if (seen_ignore) {
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BOOST_THROW_EXCEPTION(ScriptError("object rule 'ignore where' cannot be used without 'assign where'", DebugInfoRange(@2, @4)));
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}
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$$ = new ObjectExpression(abstract, $3, $4, filter, context->GetZone(), context->GetPackage(), $5, $6, $7, $9, DebugInfoRange(@2, @7));
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}
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;
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object_declaration: T_OBJECT
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{
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$$ = false;
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}
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| T_TEMPLATE
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{
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$$ = true;
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}
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;
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identifier_items: /* empty */
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{
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$$ = new std::vector<String>();
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}
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| identifier_items_inner
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| identifier_items_inner ','
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;
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identifier_items_inner: identifier
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{
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$$ = new std::vector<String>();
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$$->push_back(*$1);
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delete $1;
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}
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| identifier_items_inner ',' identifier
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{
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if ($1)
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$$ = $1;
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else
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$$ = new std::vector<String>();
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$$->push_back(*$3);
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delete $3;
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}
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;
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combined_set_op: T_SET
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| T_SET_ADD
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| T_SET_SUBTRACT
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| T_SET_MULTIPLY
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| T_SET_DIVIDE
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| T_SET_MODULO
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| T_SET_XOR
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| T_SET_BINARY_AND
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| T_SET_BINARY_OR
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;
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lterm: T_LIBRARY rterm
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{
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$$ = new LibraryExpression($2, @$);
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}
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| rterm combined_set_op rterm
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{
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$$ = new SetExpression($1, $2, $3, @$);
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}
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| T_INCLUDE rterm
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{
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$$ = new IncludeExpression(Utility::DirName(context->GetPath()), $2, NULL, NULL, IncludeRegular, false, context->GetZone(), context->GetPackage(), @$);
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}
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| T_INCLUDE T_STRING_ANGLE
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{
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|
$$ = new IncludeExpression(Utility::DirName(context->GetPath()), MakeLiteral(*$2), NULL, NULL, IncludeRegular, true, context->GetZone(), context->GetPackage(), @$);
|
|
delete $2;
|
|
}
|
|
| T_INCLUDE_RECURSIVE rterm
|
|
{
|
|
$$ = new IncludeExpression(Utility::DirName(context->GetPath()), $2, MakeLiteral("*.conf"), NULL, IncludeRecursive, false, context->GetZone(), context->GetPackage(), @$);
|
|
}
|
|
| T_INCLUDE_RECURSIVE rterm ',' rterm
|
|
{
|
|
$$ = new IncludeExpression(Utility::DirName(context->GetPath()), $2, $4, NULL, IncludeRecursive, false, context->GetZone(), context->GetPackage(), @$);
|
|
}
|
|
| T_INCLUDE_ZONES rterm ',' rterm
|
|
{
|
|
$$ = new IncludeExpression(Utility::DirName(context->GetPath()), $4, MakeLiteral("*.conf"), $2, IncludeZones, false, context->GetZone(), context->GetPackage(), @$);
|
|
}
|
|
| T_INCLUDE_ZONES rterm ',' rterm ',' rterm
|
|
{
|
|
$$ = new IncludeExpression(Utility::DirName(context->GetPath()), $4, $6, $2, IncludeZones, false, context->GetZone(), context->GetPackage(), @$);
|
|
}
|
|
| T_IMPORT rterm
|
|
{
|
|
$$ = new ImportExpression($2, @$);
|
|
}
|
|
| T_ASSIGN T_WHERE
|
|
{
|
|
BeginFlowControlBlock(context, FlowControlReturn, false);
|
|
}
|
|
rterm_scope %dprec 2
|
|
{
|
|
EndFlowControlBlock(context);
|
|
|
|
if ((context->m_Apply.empty() || !context->m_Apply.top()) && (context->m_ObjectAssign.empty() || !context->m_ObjectAssign.top()))
|
|
BOOST_THROW_EXCEPTION(ScriptError("'assign' keyword not valid in this context.", @$));
|
|
|
|
context->m_SeenAssign.top() = true;
|
|
|
|
if (context->m_Assign.top())
|
|
context->m_Assign.top() = new LogicalOrExpression(context->m_Assign.top(), $4, @$);
|
|
else
|
|
context->m_Assign.top() = $4;
|
|
|
|
$$ = MakeLiteral();
|
|
}
|
|
| T_ASSIGN T_WHERE rterm %dprec 1
|
|
{
|
|
ASSERT(!dynamic_cast<DictExpression *>($3));
|
|
|
|
if ((context->m_Apply.empty() || !context->m_Apply.top()) && (context->m_ObjectAssign.empty() || !context->m_ObjectAssign.top()))
|
|
BOOST_THROW_EXCEPTION(ScriptError("'assign' keyword not valid in this context.", @$));
|
|
|
|
context->m_SeenAssign.top() = true;
|
|
|
|
if (context->m_Assign.top())
|
|
context->m_Assign.top() = new LogicalOrExpression(context->m_Assign.top(), $3, @$);
|
|
else
|
|
context->m_Assign.top() = $3;
|
|
|
|
$$ = MakeLiteral();
|
|
}
|
|
| T_IGNORE T_WHERE
|
|
{
|
|
BeginFlowControlBlock(context, FlowControlReturn, false);
|
|
}
|
|
rterm_scope %dprec 2
|
|
{
|
|
EndFlowControlBlock(context);
|
|
|
|
if ((context->m_Apply.empty() || !context->m_Apply.top()) && (context->m_ObjectAssign.empty() || !context->m_ObjectAssign.top()))
|
|
BOOST_THROW_EXCEPTION(ScriptError("'ignore' keyword not valid in this context.", @$));
|
|
|
|
context->m_SeenIgnore.top() = true;
|
|
|
|
if (context->m_Ignore.top())
|
|
context->m_Ignore.top() = new LogicalOrExpression(context->m_Ignore.top(), $4, @$);
|
|
else
|
|
context->m_Ignore.top() = $4;
|
|
|
|
$$ = MakeLiteral();
|
|
}
|
|
| T_IGNORE T_WHERE rterm %dprec 1
|
|
{
|
|
ASSERT(!dynamic_cast<DictExpression *>($3));
|
|
|
|
if ((context->m_Apply.empty() || !context->m_Apply.top()) && (context->m_ObjectAssign.empty() || !context->m_ObjectAssign.top()))
|
|
BOOST_THROW_EXCEPTION(ScriptError("'ignore' keyword not valid in this context.", @$));
|
|
|
|
context->m_SeenIgnore.top() = true;
|
|
|
|
if (context->m_Ignore.top())
|
|
context->m_Ignore.top() = new LogicalOrExpression(context->m_Ignore.top(), $3, @$);
|
|
else
|
|
context->m_Ignore.top() = $3;
|
|
|
|
$$ = MakeLiteral();
|
|
}
|
|
| T_RETURN optional_rterm
|
|
{
|
|
UseFlowControl(context, FlowControlReturn, @$);
|
|
$$ = new ReturnExpression($2, @$);
|
|
}
|
|
| T_BREAK
|
|
{
|
|
UseFlowControl(context, FlowControlBreak, @$);
|
|
$$ = new BreakExpression(@$);
|
|
}
|
|
| T_CONTINUE
|
|
{
|
|
UseFlowControl(context, FlowControlContinue, @$);
|
|
$$ = new ContinueExpression(@$);
|
|
}
|
|
| T_DEBUGGER
|
|
{
|
|
$$ = new BreakpointExpression(@$);
|
|
}
|
|
| T_USING rterm
|
|
{
|
|
$$ = new UsingExpression($2, @$);
|
|
}
|
|
| apply
|
|
| object
|
|
| T_FOR '(' identifier T_FOLLOWS identifier T_IN rterm ')'
|
|
{
|
|
BeginFlowControlBlock(context, FlowControlContinue | FlowControlBreak, true);
|
|
}
|
|
rterm_scope_require_side_effect
|
|
{
|
|
EndFlowControlBlock(context);
|
|
|
|
$$ = new ForExpression(*$3, *$5, $7, $10, @$);
|
|
delete $3;
|
|
delete $5;
|
|
}
|
|
| T_FOR '(' identifier T_IN rterm ')'
|
|
{
|
|
BeginFlowControlBlock(context, FlowControlContinue | FlowControlBreak, true);
|
|
}
|
|
rterm_scope_require_side_effect
|
|
{
|
|
EndFlowControlBlock(context);
|
|
|
|
$$ = new ForExpression(*$3, "", $5, $8, @$);
|
|
delete $3;
|
|
}
|
|
| T_FUNCTION identifier '(' identifier_items ')' use_specifier
|
|
{
|
|
BeginFlowControlBlock(context, FlowControlReturn, false);
|
|
}
|
|
rterm_scope
|
|
{
|
|
EndFlowControlBlock(context);
|
|
|
|
FunctionExpression *fexpr = new FunctionExpression(*$2, *$4, $6, $8, @$);
|
|
delete $4;
|
|
|
|
$$ = new SetExpression(MakeIndexer(ScopeThis, *$2), OpSetLiteral, fexpr, @$);
|
|
delete $2;
|
|
}
|
|
| T_CONST T_IDENTIFIER T_SET rterm
|
|
{
|
|
$$ = new SetExpression(MakeIndexer(ScopeGlobal, *$2), OpSetLiteral, $4);
|
|
delete $2;
|
|
}
|
|
| T_VAR rterm
|
|
{
|
|
Expression *expr = $2;
|
|
BindToScope(expr, ScopeLocal);
|
|
$$ = new SetExpression(expr, OpSetLiteral, MakeLiteral(), @$);
|
|
}
|
|
| T_VAR rterm combined_set_op rterm
|
|
{
|
|
Expression *expr = $2;
|
|
BindToScope(expr, ScopeLocal);
|
|
$$ = new SetExpression(expr, $3, $4, @$);
|
|
}
|
|
| T_WHILE '(' rterm ')'
|
|
{
|
|
BeginFlowControlBlock(context, FlowControlContinue | FlowControlBreak, true);
|
|
}
|
|
rterm_scope
|
|
{
|
|
EndFlowControlBlock(context);
|
|
|
|
$$ = new WhileExpression($3, $6, @$);
|
|
}
|
|
| T_THROW rterm
|
|
{
|
|
$$ = new ThrowExpression($2, false, @$);
|
|
}
|
|
| T_TRY rterm_scope T_EXCEPT rterm_scope
|
|
{
|
|
$$ = new TryExceptExpression($2, $4, @$);
|
|
}
|
|
| rterm_side_effect
|
|
;
|
|
|
|
rterm_items: /* empty */
|
|
{
|
|
$$ = new std::vector<Expression *>();
|
|
}
|
|
| rterm_items_inner
|
|
| rterm_items_inner ','
|
|
| rterm_items_inner ',' newlines
|
|
| rterm_items_inner newlines
|
|
;
|
|
|
|
rterm_items_inner: rterm
|
|
{
|
|
$$ = new std::vector<Expression *>();
|
|
$$->push_back($1);
|
|
}
|
|
| rterm_items_inner arraysep rterm
|
|
{
|
|
$$ = $1;
|
|
$$->push_back($3);
|
|
}
|
|
;
|
|
|
|
rterm_array: '['
|
|
{
|
|
context->m_OpenBraces++;
|
|
}
|
|
newlines rterm_items ']'
|
|
{
|
|
context->m_OpenBraces--;
|
|
$$ = new ArrayExpression(*$4, @$);
|
|
delete $4;
|
|
}
|
|
| '['
|
|
{
|
|
context->m_OpenBraces++;
|
|
}
|
|
rterm_items ']'
|
|
{
|
|
context->m_OpenBraces--;
|
|
$$ = new ArrayExpression(*$3, @$);
|
|
delete $3;
|
|
}
|
|
;
|
|
|
|
rterm_dict: '{'
|
|
{
|
|
BeginFlowControlBlock(context, 0, false);
|
|
context->m_IgnoreNewlines.push(false);
|
|
context->m_OpenBraces++;
|
|
}
|
|
statements '}'
|
|
{
|
|
EndFlowControlBlock(context);
|
|
context->m_OpenBraces--;
|
|
context->m_IgnoreNewlines.pop();
|
|
std::vector<Expression *> dlist;
|
|
typedef std::pair<Expression *, EItemInfo> EListItem;
|
|
int num = 0;
|
|
for (const EListItem& litem : *$3) {
|
|
if (!litem.second.SideEffect)
|
|
yyerror(&litem.second.DebugInfo, NULL, NULL, "Value computed is not used.");
|
|
dlist.push_back(litem.first);
|
|
num++;
|
|
}
|
|
delete $3;
|
|
$$ = new DictExpression(dlist, @$);
|
|
}
|
|
;
|
|
|
|
rterm_scope_require_side_effect: '{'
|
|
{
|
|
context->m_IgnoreNewlines.push(false);
|
|
context->m_OpenBraces++;
|
|
}
|
|
statements '}'
|
|
{
|
|
context->m_OpenBraces--;
|
|
context->m_IgnoreNewlines.pop();
|
|
std::vector<Expression *> dlist;
|
|
typedef std::pair<Expression *, EItemInfo> EListItem;
|
|
int num = 0;
|
|
for (const EListItem& litem : *$3) {
|
|
if (!litem.second.SideEffect)
|
|
yyerror(&litem.second.DebugInfo, NULL, NULL, "Value computed is not used.");
|
|
dlist.push_back(litem.first);
|
|
num++;
|
|
}
|
|
delete $3;
|
|
$$ = new DictExpression(dlist, @$);
|
|
$$->MakeInline();
|
|
}
|
|
;
|
|
|
|
rterm_scope: '{'
|
|
{
|
|
context->m_IgnoreNewlines.push(false);
|
|
context->m_OpenBraces++;
|
|
}
|
|
statements '}'
|
|
{
|
|
context->m_OpenBraces--;
|
|
context->m_IgnoreNewlines.pop();
|
|
std::vector<Expression *> dlist;
|
|
typedef std::pair<Expression *, EItemInfo> EListItem;
|
|
std::vector<std::pair<Expression *, EItemInfo> >::size_type num = 0;
|
|
for (const EListItem& litem : *$3) {
|
|
if (!litem.second.SideEffect && num != $3->size() - 1)
|
|
yyerror(&litem.second.DebugInfo, NULL, NULL, "Value computed is not used.");
|
|
dlist.push_back(litem.first);
|
|
num++;
|
|
}
|
|
delete $3;
|
|
$$ = new DictExpression(dlist, @$);
|
|
$$->MakeInline();
|
|
}
|
|
;
|
|
|
|
else_if_branch: T_ELSE T_IF '(' rterm ')' rterm_scope
|
|
{
|
|
$$ = new std::pair<Expression *, Expression *>($4, $6);
|
|
}
|
|
;
|
|
|
|
else_if_branches: /* empty */
|
|
{
|
|
$$ = new std::vector<std::pair<Expression *, Expression *> >();
|
|
}
|
|
| else_if_branches else_if_branch
|
|
{
|
|
$$ = $1;
|
|
$$->push_back(*$2);
|
|
delete $2;
|
|
}
|
|
;
|
|
|
|
rterm_side_effect: rterm '(' rterm_items ')'
|
|
{
|
|
$$ = new FunctionCallExpression($1, *$3, @$);
|
|
delete $3;
|
|
}
|
|
| T_IF '(' rterm ')' rterm_scope else_if_branches
|
|
{
|
|
std::vector<std::pair<Expression *, Expression *> > ebranches = *$6;
|
|
delete $6;
|
|
|
|
Expression *afalse = NULL;
|
|
|
|
for (int i = ebranches.size() - 1; i >= 0; i--) {
|
|
const std::pair<Expression *, Expression *>& ebranch = ebranches[i];
|
|
afalse = new ConditionalExpression(ebranch.first, ebranch.second, afalse, @6);
|
|
}
|
|
|
|
$$ = new ConditionalExpression($3, $5, afalse, @$);
|
|
}
|
|
| T_IF '(' rterm ')' rterm_scope else_if_branches T_ELSE rterm_scope
|
|
{
|
|
std::vector<std::pair<Expression *, Expression *> > ebranches = *$6;
|
|
delete $6;
|
|
|
|
$8->MakeInline();
|
|
|
|
Expression *afalse = $8;
|
|
|
|
for (int i = ebranches.size() - 1; i >= 0; i--) {
|
|
const std::pair<Expression *, Expression *>& ebranch = ebranches[i];
|
|
afalse = new ConditionalExpression(ebranch.first, ebranch.second, afalse, @6);
|
|
}
|
|
|
|
$$ = new ConditionalExpression($3, $5, afalse, @$);
|
|
}
|
|
;
|
|
|
|
rterm_no_side_effect_no_dict: T_STRING
|
|
{
|
|
$$ = MakeLiteral(*$1);
|
|
delete $1;
|
|
}
|
|
| T_NUMBER
|
|
{
|
|
$$ = MakeLiteral($1);
|
|
}
|
|
| T_BOOLEAN
|
|
{
|
|
$$ = MakeLiteral($1);
|
|
}
|
|
| T_NULL
|
|
{
|
|
$$ = MakeLiteral();
|
|
}
|
|
| rterm '.' T_IDENTIFIER %dprec 2
|
|
{
|
|
$$ = new IndexerExpression($1, MakeLiteral(*$3), @$);
|
|
delete $3;
|
|
}
|
|
| rterm '[' rterm ']'
|
|
{
|
|
$$ = new IndexerExpression($1, $3, @$);
|
|
}
|
|
| T_IDENTIFIER
|
|
{
|
|
$$ = new VariableExpression(*$1, @1);
|
|
delete $1;
|
|
}
|
|
| '!' rterm
|
|
{
|
|
$$ = new LogicalNegateExpression($2, @$);
|
|
}
|
|
| '~' rterm
|
|
{
|
|
$$ = new NegateExpression($2, @$);
|
|
}
|
|
| T_PLUS rterm %prec UNARY_PLUS
|
|
{
|
|
$$ = $2;
|
|
}
|
|
| T_MINUS rterm %prec UNARY_MINUS
|
|
{
|
|
$$ = new SubtractExpression(MakeLiteral(0), $2, @$);
|
|
}
|
|
| T_THIS
|
|
{
|
|
$$ = new GetScopeExpression(ScopeThis);
|
|
}
|
|
| T_GLOBALS
|
|
{
|
|
$$ = new GetScopeExpression(ScopeGlobal);
|
|
}
|
|
| T_LOCALS
|
|
{
|
|
$$ = new GetScopeExpression(ScopeLocal);
|
|
}
|
|
| T_CURRENT_FILENAME
|
|
{
|
|
$$ = MakeLiteral(@$.Path);
|
|
}
|
|
| T_CURRENT_LINE
|
|
{
|
|
$$ = MakeLiteral(@$.FirstLine);
|
|
}
|
|
| identifier T_FOLLOWS
|
|
{
|
|
BeginFlowControlBlock(context, FlowControlReturn, false);
|
|
}
|
|
rterm_scope %dprec 2
|
|
{
|
|
EndFlowControlBlock(context);
|
|
|
|
std::vector<String> args;
|
|
args.push_back(*$1);
|
|
delete $1;
|
|
|
|
$$ = new FunctionExpression("<anonymous>", args, new std::map<String, Expression *>(), $4, @$);
|
|
}
|
|
| identifier T_FOLLOWS rterm %dprec 1
|
|
{
|
|
ASSERT(!dynamic_cast<DictExpression *>($3));
|
|
|
|
std::vector<String> args;
|
|
args.push_back(*$1);
|
|
delete $1;
|
|
|
|
$$ = new FunctionExpression("<anonymous>", args, new std::map<String, Expression *>(), $3, @$);
|
|
}
|
|
| '(' identifier_items ')' T_FOLLOWS
|
|
{
|
|
BeginFlowControlBlock(context, FlowControlReturn, false);
|
|
}
|
|
rterm_scope %dprec 2
|
|
{
|
|
EndFlowControlBlock(context);
|
|
|
|
$$ = new FunctionExpression("<anonymous>", *$2, new std::map<String, Expression *>(), $6, @$);
|
|
delete $2;
|
|
}
|
|
| '(' identifier_items ')' T_FOLLOWS rterm %dprec 1
|
|
{
|
|
ASSERT(!dynamic_cast<DictExpression *>($5));
|
|
|
|
$$ = new FunctionExpression("<anonymous>", *$2, new std::map<String, Expression *>(), $5, @$);
|
|
delete $2;
|
|
}
|
|
| rterm_array
|
|
| '('
|
|
{
|
|
context->m_OpenBraces++;
|
|
}
|
|
rterm ')'
|
|
{
|
|
context->m_OpenBraces--;
|
|
$$ = $3;
|
|
}
|
|
| rterm T_LOGICAL_OR rterm { MakeRBinaryOp<LogicalOrExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_LOGICAL_AND rterm { MakeRBinaryOp<LogicalAndExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_BINARY_OR rterm { MakeRBinaryOp<BinaryOrExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_BINARY_AND rterm { MakeRBinaryOp<BinaryAndExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_IN rterm { MakeRBinaryOp<InExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_NOT_IN rterm { MakeRBinaryOp<NotInExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_EQUAL rterm { MakeRBinaryOp<EqualExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_NOT_EQUAL rterm { MakeRBinaryOp<NotEqualExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_LESS_THAN rterm { MakeRBinaryOp<LessThanExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_LESS_THAN_OR_EQUAL rterm { MakeRBinaryOp<LessThanOrEqualExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_GREATER_THAN rterm { MakeRBinaryOp<GreaterThanExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_GREATER_THAN_OR_EQUAL rterm { MakeRBinaryOp<GreaterThanOrEqualExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_SHIFT_LEFT rterm { MakeRBinaryOp<ShiftLeftExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_SHIFT_RIGHT rterm { MakeRBinaryOp<ShiftRightExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_PLUS rterm { MakeRBinaryOp<AddExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_MINUS rterm { MakeRBinaryOp<SubtractExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_MULTIPLY rterm { MakeRBinaryOp<MultiplyExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_DIVIDE_OP rterm { MakeRBinaryOp<DivideExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_MODULO rterm { MakeRBinaryOp<ModuloExpression>(&$$, $1, $3, @1, @3); }
|
|
| rterm T_XOR rterm { MakeRBinaryOp<XorExpression>(&$$, $1, $3, @1, @3); }
|
|
| T_FUNCTION '(' identifier_items ')' use_specifier
|
|
{
|
|
BeginFlowControlBlock(context, FlowControlReturn, false);
|
|
}
|
|
rterm_scope
|
|
{
|
|
EndFlowControlBlock(context);
|
|
|
|
$$ = new FunctionExpression("<anonymous>", *$3, $5, $7, @$);
|
|
delete $3;
|
|
}
|
|
| T_NULLARY_LAMBDA_BEGIN
|
|
{
|
|
BeginFlowControlBlock(context, FlowControlReturn, false);
|
|
}
|
|
statements T_NULLARY_LAMBDA_END
|
|
{
|
|
EndFlowControlBlock(context);
|
|
|
|
std::vector<Expression *> dlist;
|
|
typedef std::pair<Expression *, EItemInfo> EListItem;
|
|
std::vector<std::pair<Expression *, EItemInfo> >::size_type num = 0;
|
|
for (const EListItem& litem : *$3) {
|
|
if (!litem.second.SideEffect && num != $3->size() - 1)
|
|
yyerror(&litem.second.DebugInfo, NULL, NULL, "Value computed is not used.");
|
|
dlist.push_back(litem.first);
|
|
num++;
|
|
}
|
|
delete $3;
|
|
DictExpression *aexpr = new DictExpression(dlist, @$);
|
|
aexpr->MakeInline();
|
|
|
|
$$ = new FunctionExpression("<anonymous>", std::vector<String>(), NULL, aexpr, @$);
|
|
}
|
|
;
|
|
|
|
rterm_no_side_effect:
|
|
rterm_no_side_effect_no_dict %dprec 1
|
|
| rterm_dict %dprec 2
|
|
{
|
|
Expression *expr = $1;
|
|
BindToScope(expr, ScopeThis);
|
|
$$ = expr;
|
|
}
|
|
;
|
|
|
|
rterm:
|
|
rterm_side_effect %dprec 2
|
|
| rterm_no_side_effect %dprec 1
|
|
;
|
|
|
|
target_type_specifier: /* empty */
|
|
{
|
|
$$ = new String();
|
|
}
|
|
| T_TO identifier
|
|
{
|
|
$$ = $2;
|
|
}
|
|
;
|
|
|
|
default_specifier: /* empty */
|
|
{
|
|
$$ = false;
|
|
}
|
|
| T_DEFAULT
|
|
{
|
|
$$ = true;
|
|
}
|
|
;
|
|
|
|
ignore_specifier: /* empty */
|
|
{
|
|
$$ = false;
|
|
}
|
|
| T_IGNORE_ON_ERROR
|
|
{
|
|
$$ = true;
|
|
}
|
|
;
|
|
|
|
use_specifier: /* empty */
|
|
{
|
|
$$ = NULL;
|
|
}
|
|
| T_USE '(' use_specifier_items ')'
|
|
{
|
|
$$ = $3;
|
|
}
|
|
;
|
|
|
|
use_specifier_items: use_specifier_item
|
|
{
|
|
$$ = new std::map<String, Expression *>();
|
|
$$->insert(*$1);
|
|
delete $1;
|
|
}
|
|
| use_specifier_items ',' use_specifier_item
|
|
{
|
|
$$ = $1;
|
|
$$->insert(*$3);
|
|
delete $3;
|
|
}
|
|
;
|
|
|
|
use_specifier_item: identifier
|
|
{
|
|
$$ = new std::pair<String, Expression *>(*$1, new VariableExpression(*$1, @1));
|
|
delete $1;
|
|
}
|
|
| identifier T_SET rterm
|
|
{
|
|
$$ = new std::pair<String, Expression *>(*$1, $3);
|
|
delete $1;
|
|
}
|
|
;
|
|
|
|
apply_for_specifier: /* empty */
|
|
| T_FOR '(' identifier T_FOLLOWS identifier T_IN rterm ')'
|
|
{
|
|
context->m_FKVar.top() = *$3;
|
|
delete $3;
|
|
|
|
context->m_FVVar.top() = *$5;
|
|
delete $5;
|
|
|
|
context->m_FTerm.top() = $7;
|
|
}
|
|
| T_FOR '(' identifier T_IN rterm ')'
|
|
{
|
|
context->m_FKVar.top() = *$3;
|
|
delete $3;
|
|
|
|
context->m_FVVar.top() = "";
|
|
|
|
context->m_FTerm.top() = $5;
|
|
}
|
|
;
|
|
|
|
optional_rterm: /* empty */
|
|
{
|
|
$$ = MakeLiteral();
|
|
}
|
|
| rterm
|
|
;
|
|
|
|
apply:
|
|
{
|
|
context->m_Apply.push(true);
|
|
context->m_SeenAssign.push(false);
|
|
context->m_SeenIgnore.push(false);
|
|
context->m_Assign.push(NULL);
|
|
context->m_Ignore.push(NULL);
|
|
context->m_FKVar.push("");
|
|
context->m_FVVar.push("");
|
|
context->m_FTerm.push(NULL);
|
|
}
|
|
T_APPLY identifier optional_rterm apply_for_specifier target_type_specifier use_specifier ignore_specifier
|
|
{
|
|
BeginFlowControlBlock(context, FlowControlReturn, false);
|
|
}
|
|
rterm_scope_require_side_effect
|
|
{
|
|
EndFlowControlBlock(context);
|
|
|
|
context->m_Apply.pop();
|
|
|
|
String type = *$3;
|
|
delete $3;
|
|
String target = *$6;
|
|
delete $6;
|
|
|
|
if (!ApplyRule::IsValidSourceType(type))
|
|
BOOST_THROW_EXCEPTION(ScriptError("'apply' cannot be used with type '" + type + "'", DebugInfoRange(@2, @3)));
|
|
|
|
if (!ApplyRule::IsValidTargetType(type, target)) {
|
|
if (target == "") {
|
|
std::vector<String> types = ApplyRule::GetTargetTypes(type);
|
|
String typeNames;
|
|
|
|
for (std::vector<String>::size_type i = 0; i < types.size(); i++) {
|
|
if (typeNames != "") {
|
|
if (i == types.size() - 1)
|
|
typeNames += " or ";
|
|
else
|
|
typeNames += ", ";
|
|
}
|
|
|
|
typeNames += "'" + types[i] + "'";
|
|
}
|
|
|
|
BOOST_THROW_EXCEPTION(ScriptError("'apply' target type is ambiguous (can be one of " + typeNames + "): use 'to' to specify a type", DebugInfoRange(@2, @3)));
|
|
} else
|
|
BOOST_THROW_EXCEPTION(ScriptError("'apply' target type '" + target + "' is invalid", DebugInfoRange(@2, @5)));
|
|
}
|
|
|
|
bool seen_assign = context->m_SeenAssign.top();
|
|
context->m_SeenAssign.pop();
|
|
|
|
// assign && !ignore
|
|
if (!seen_assign && !context->m_FTerm.top())
|
|
BOOST_THROW_EXCEPTION(ScriptError("'apply' is missing 'assign'/'for'", DebugInfoRange(@2, @3)));
|
|
|
|
Expression *ignore = context->m_Ignore.top();
|
|
context->m_Ignore.pop();
|
|
|
|
Expression *assign;
|
|
|
|
if (!seen_assign)
|
|
assign = MakeLiteral(true);
|
|
else
|
|
assign = context->m_Assign.top();
|
|
|
|
context->m_Assign.pop();
|
|
|
|
Expression *filter;
|
|
|
|
if (ignore) {
|
|
Expression *rex = new LogicalNegateExpression(ignore, DebugInfoRange(@2, @5));
|
|
|
|
filter = new LogicalAndExpression(assign, rex, DebugInfoRange(@2, @5));
|
|
} else
|
|
filter = assign;
|
|
|
|
String fkvar = context->m_FKVar.top();
|
|
context->m_FKVar.pop();
|
|
|
|
String fvvar = context->m_FVVar.top();
|
|
context->m_FVVar.pop();
|
|
|
|
Expression *fterm = context->m_FTerm.top();
|
|
context->m_FTerm.pop();
|
|
|
|
$$ = new ApplyExpression(type, target, $4, filter, context->GetPackage(), fkvar, fvvar, fterm, $7, $8, $10, DebugInfoRange(@2, @8));
|
|
}
|
|
;
|
|
|
|
newlines: T_NEWLINE
|
|
| T_NEWLINE newlines
|
|
;
|
|
|
|
/* required separator */
|
|
sep: ',' newlines
|
|
| ','
|
|
| ';' newlines
|
|
| ';'
|
|
| newlines
|
|
;
|
|
|
|
arraysep: ',' newlines
|
|
| ','
|
|
;
|
|
|
|
%%
|