mirror of
https://github.com/php/php-src.git
synced 2024-12-14 20:33:36 +08:00
1774 lines
61 KiB
Plaintext
1774 lines
61 KiB
Plaintext
%require "3.0"
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/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Andi Gutmans <andi@php.net> |
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| Zeev Suraski <zeev@php.net> |
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| Nikita Popov <nikic@php.net> |
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+----------------------------------------------------------------------+
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*/
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%code top {
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#include "zend.h"
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#include "zend_list.h"
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#include "zend_globals.h"
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#include "zend_API.h"
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#include "zend_constants.h"
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#include "zend_language_scanner.h"
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#include "zend_exceptions.h"
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#define YYSIZE_T size_t
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#define yytnamerr zend_yytnamerr
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static YYSIZE_T zend_yytnamerr(char*, const char*);
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#ifdef _MSC_VER
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#define YYMALLOC malloc
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#define YYFREE free
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#endif
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}
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%code requires {
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#include "zend_compile.h"
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}
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%define api.prefix {zend}
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%define api.pure full
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%define api.value.type {zend_parser_stack_elem}
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%define parse.error verbose
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%expect 0
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%destructor { zend_ast_destroy($$); } <ast>
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%destructor { if ($$) zend_string_release_ex($$, 0); } <str>
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%precedence T_THROW
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%precedence PREC_ARROW_FUNCTION
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%precedence T_INCLUDE T_INCLUDE_ONCE T_REQUIRE T_REQUIRE_ONCE
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%left T_LOGICAL_OR
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%left T_LOGICAL_XOR
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%left T_LOGICAL_AND
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%precedence T_PRINT
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%precedence T_YIELD
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%precedence T_DOUBLE_ARROW
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%precedence T_YIELD_FROM
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%precedence '=' T_PLUS_EQUAL T_MINUS_EQUAL T_MUL_EQUAL T_DIV_EQUAL T_CONCAT_EQUAL T_MOD_EQUAL T_AND_EQUAL T_OR_EQUAL T_XOR_EQUAL T_SL_EQUAL T_SR_EQUAL T_POW_EQUAL T_COALESCE_EQUAL
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%left '?' ':'
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%right T_COALESCE
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%left T_BOOLEAN_OR
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%left T_BOOLEAN_AND
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%left '|'
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%left '^'
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%left T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG
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%nonassoc T_IS_EQUAL T_IS_NOT_EQUAL T_IS_IDENTICAL T_IS_NOT_IDENTICAL T_SPACESHIP
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%nonassoc '<' T_IS_SMALLER_OR_EQUAL '>' T_IS_GREATER_OR_EQUAL
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%left '.'
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%left T_SL T_SR
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%left '+' '-'
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%left '*' '/' '%'
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%precedence '!'
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%precedence T_INSTANCEOF
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%precedence '~' T_INT_CAST T_DOUBLE_CAST T_STRING_CAST T_ARRAY_CAST T_OBJECT_CAST T_BOOL_CAST T_UNSET_CAST '@'
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%right T_POW
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%precedence T_CLONE
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/* Resolve danging else conflict */
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%precedence T_NOELSE
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%precedence T_ELSEIF
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%precedence T_ELSE
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%token <ast> T_LNUMBER "integer"
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%token <ast> T_DNUMBER "floating-point number"
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%token <ast> T_STRING "identifier"
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%token <ast> T_NAME_FULLY_QUALIFIED "fully qualified name"
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%token <ast> T_NAME_RELATIVE "namespace-relative name"
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%token <ast> T_NAME_QUALIFIED "namespaced name"
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%token <ast> T_VARIABLE "variable"
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%token <ast> T_INLINE_HTML
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%token <ast> T_ENCAPSED_AND_WHITESPACE "string content"
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%token <ast> T_CONSTANT_ENCAPSED_STRING "quoted string"
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%token <ast> T_STRING_VARNAME "variable name"
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%token <ast> T_NUM_STRING "number"
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%token <ident> T_INCLUDE "'include'"
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%token <ident> T_INCLUDE_ONCE "'include_once'"
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%token <ident> T_EVAL "'eval'"
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%token <ident> T_REQUIRE "'require'"
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%token <ident> T_REQUIRE_ONCE "'require_once'"
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%token <ident> T_LOGICAL_OR "'or'"
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%token <ident> T_LOGICAL_XOR "'xor'"
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%token <ident> T_LOGICAL_AND "'and'"
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%token <ident> T_PRINT "'print'"
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%token <ident> T_YIELD "'yield'"
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%token <ident> T_YIELD_FROM "'yield from'"
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%token <ident> T_INSTANCEOF "'instanceof'"
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%token <ident> T_NEW "'new'"
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%token <ident> T_CLONE "'clone'"
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%token <ident> T_EXIT "'exit'"
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%token <ident> T_IF "'if'"
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%token <ident> T_ELSEIF "'elseif'"
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%token <ident> T_ELSE "'else'"
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%token <ident> T_ENDIF "'endif'"
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%token <ident> T_ECHO "'echo'"
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%token <ident> T_DO "'do'"
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%token <ident> T_WHILE "'while'"
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%token <ident> T_ENDWHILE "'endwhile'"
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%token <ident> T_FOR "'for'"
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%token <ident> T_ENDFOR "'endfor'"
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%token <ident> T_FOREACH "'foreach'"
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%token <ident> T_ENDFOREACH "'endforeach'"
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%token <ident> T_DECLARE "'declare'"
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%token <ident> T_ENDDECLARE "'enddeclare'"
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%token <ident> T_AS "'as'"
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%token <ident> T_SWITCH "'switch'"
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%token <ident> T_ENDSWITCH "'endswitch'"
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%token <ident> T_CASE "'case'"
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%token <ident> T_DEFAULT "'default'"
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%token <ident> T_MATCH "'match'"
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%token <ident> T_BREAK "'break'"
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%token <ident> T_CONTINUE "'continue'"
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%token <ident> T_GOTO "'goto'"
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%token <ident> T_FUNCTION "'function'"
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%token <ident> T_FN "'fn'"
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%token <ident> T_CONST "'const'"
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%token <ident> T_RETURN "'return'"
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%token <ident> T_TRY "'try'"
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%token <ident> T_CATCH "'catch'"
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%token <ident> T_FINALLY "'finally'"
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%token <ident> T_THROW "'throw'"
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%token <ident> T_USE "'use'"
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%token <ident> T_INSTEADOF "'insteadof'"
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%token <ident> T_GLOBAL "'global'"
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%token <ident> T_STATIC "'static'"
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%token <ident> T_ABSTRACT "'abstract'"
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%token <ident> T_FINAL "'final'"
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%token <ident> T_PRIVATE "'private'"
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%token <ident> T_PROTECTED "'protected'"
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%token <ident> T_PUBLIC "'public'"
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%token <ident> T_READONLY "'readonly'"
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%token <ident> T_VAR "'var'"
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%token <ident> T_UNSET "'unset'"
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%token <ident> T_ISSET "'isset'"
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%token <ident> T_EMPTY "'empty'"
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%token <ident> T_HALT_COMPILER "'__halt_compiler'"
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%token <ident> T_CLASS "'class'"
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%token <ident> T_TRAIT "'trait'"
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%token <ident> T_INTERFACE "'interface'"
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%token <ident> T_ENUM "'enum'"
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%token <ident> T_EXTENDS "'extends'"
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%token <ident> T_IMPLEMENTS "'implements'"
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%token <ident> T_NAMESPACE "'namespace'"
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%token <ident> T_LIST "'list'"
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%token <ident> T_ARRAY "'array'"
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%token <ident> T_CALLABLE "'callable'"
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%token <ident> T_LINE "'__LINE__'"
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%token <ident> T_FILE "'__FILE__'"
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%token <ident> T_DIR "'__DIR__'"
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%token <ident> T_CLASS_C "'__CLASS__'"
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%token <ident> T_TRAIT_C "'__TRAIT__'"
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%token <ident> T_METHOD_C "'__METHOD__'"
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%token <ident> T_FUNC_C "'__FUNCTION__'"
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%token <ident> T_NS_C "'__NAMESPACE__'"
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%token END 0 "end of file"
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%token T_ATTRIBUTE "'#['"
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%token T_PLUS_EQUAL "'+='"
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%token T_MINUS_EQUAL "'-='"
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%token T_MUL_EQUAL "'*='"
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%token T_DIV_EQUAL "'/='"
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%token T_CONCAT_EQUAL "'.='"
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%token T_MOD_EQUAL "'%='"
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%token T_AND_EQUAL "'&='"
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%token T_OR_EQUAL "'|='"
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%token T_XOR_EQUAL "'^='"
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%token T_SL_EQUAL "'<<='"
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%token T_SR_EQUAL "'>>='"
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%token T_COALESCE_EQUAL "'??='"
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%token T_BOOLEAN_OR "'||'"
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%token T_BOOLEAN_AND "'&&'"
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%token T_IS_EQUAL "'=='"
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%token T_IS_NOT_EQUAL "'!='"
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%token T_IS_IDENTICAL "'==='"
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%token T_IS_NOT_IDENTICAL "'!=='"
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%token T_IS_SMALLER_OR_EQUAL "'<='"
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%token T_IS_GREATER_OR_EQUAL "'>='"
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%token T_SPACESHIP "'<=>'"
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%token T_SL "'<<'"
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%token T_SR "'>>'"
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%token T_INC "'++'"
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%token T_DEC "'--'"
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%token T_INT_CAST "'(int)'"
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%token T_DOUBLE_CAST "'(double)'"
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%token T_STRING_CAST "'(string)'"
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%token T_ARRAY_CAST "'(array)'"
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%token T_OBJECT_CAST "'(object)'"
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%token T_BOOL_CAST "'(bool)'"
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%token T_UNSET_CAST "'(unset)'"
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%token T_OBJECT_OPERATOR "'->'"
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%token T_NULLSAFE_OBJECT_OPERATOR "'?->'"
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%token T_DOUBLE_ARROW "'=>'"
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%token T_COMMENT "comment"
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%token T_DOC_COMMENT "doc comment"
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%token T_OPEN_TAG "open tag"
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%token T_OPEN_TAG_WITH_ECHO "'<?='"
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%token T_CLOSE_TAG "'?>'"
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%token T_WHITESPACE "whitespace"
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|
%token T_START_HEREDOC "heredoc start"
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|
%token T_END_HEREDOC "heredoc end"
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|
%token T_DOLLAR_OPEN_CURLY_BRACES "'${'"
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%token T_CURLY_OPEN "'{$'"
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%token T_PAAMAYIM_NEKUDOTAYIM "'::'"
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%token T_NS_SEPARATOR "'\\'"
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%token T_ELLIPSIS "'...'"
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%token T_COALESCE "'??'"
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%token T_POW "'**'"
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%token T_POW_EQUAL "'**='"
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|
/* We need to split the & token in two to avoid a shift/reduce conflict. For T1&$v and T1&T2,
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* with only one token lookahead, bison does not know whether to reduce T1 as a complete type,
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* or shift to continue parsing an intersection type. */
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%token T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG "'&'"
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/* Bison warns on duplicate token literals, so use a different dummy value here.
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* It will be fixed up by zend_yytnamerr() later. */
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%token T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG "amp"
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%token T_BAD_CHARACTER "invalid character"
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/* Token used to force a parse error from the lexer */
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%token T_ERROR
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%type <ast> top_statement namespace_name name statement function_declaration_statement
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%type <ast> class_declaration_statement trait_declaration_statement legacy_namespace_name
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%type <ast> interface_declaration_statement interface_extends_list
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%type <ast> group_use_declaration inline_use_declarations inline_use_declaration
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%type <ast> mixed_group_use_declaration use_declaration unprefixed_use_declaration
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%type <ast> unprefixed_use_declarations const_decl inner_statement
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%type <ast> expr optional_expr while_statement for_statement foreach_variable
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%type <ast> foreach_statement declare_statement finally_statement unset_variable variable
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%type <ast> extends_from parameter optional_type_without_static argument global_var
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%type <ast> static_var class_statement trait_adaptation trait_precedence trait_alias
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%type <ast> absolute_trait_method_reference trait_method_reference property echo_expr
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%type <ast> new_expr anonymous_class class_name class_name_reference simple_variable
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%type <ast> internal_functions_in_yacc
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%type <ast> exit_expr scalar backticks_expr lexical_var function_call member_name property_name
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%type <ast> variable_class_name dereferenceable_scalar constant class_constant
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%type <ast> fully_dereferenceable array_object_dereferenceable
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%type <ast> callable_expr callable_variable static_member new_variable
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%type <ast> encaps_var encaps_var_offset isset_variables
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%type <ast> top_statement_list use_declarations const_list inner_statement_list if_stmt
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%type <ast> alt_if_stmt for_exprs switch_case_list global_var_list static_var_list
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%type <ast> echo_expr_list unset_variables catch_name_list catch_list optional_variable parameter_list class_statement_list
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%type <ast> implements_list case_list if_stmt_without_else
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%type <ast> non_empty_parameter_list argument_list non_empty_argument_list property_list
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%type <ast> class_const_list class_const_decl class_name_list trait_adaptations method_body non_empty_for_exprs
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%type <ast> ctor_arguments alt_if_stmt_without_else trait_adaptation_list lexical_vars
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%type <ast> lexical_var_list encaps_list
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%type <ast> array_pair non_empty_array_pair_list array_pair_list possible_array_pair
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%type <ast> isset_variable type return_type type_expr type_without_static
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%type <ast> identifier type_expr_without_static union_type_without_static_element union_type_without_static intersection_type_without_static
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%type <ast> inline_function union_type_element union_type intersection_type
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%type <ast> attributed_statement attributed_class_statement attributed_parameter
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%type <ast> attribute_decl attribute attributes attribute_group namespace_declaration_name
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%type <ast> match match_arm_list non_empty_match_arm_list match_arm match_arm_cond_list
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%type <ast> enum_declaration_statement enum_backing_type enum_case enum_case_expr
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%type <ast> function_name non_empty_member_modifiers
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%type <num> returns_ref function fn is_reference is_variadic property_modifiers
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%type <num> method_modifiers class_const_modifiers member_modifier optional_cpp_modifiers
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%type <num> class_modifiers class_modifier anonymous_class_modifiers anonymous_class_modifiers_optional use_type backup_fn_flags
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%type <ptr> backup_lex_pos
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%type <str> backup_doc_comment
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%type <ident> reserved_non_modifiers semi_reserved
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%% /* Rules */
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start:
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top_statement_list { CG(ast) = $1; (void) zendnerrs; }
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;
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|
reserved_non_modifiers:
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T_INCLUDE | T_INCLUDE_ONCE | T_EVAL | T_REQUIRE | T_REQUIRE_ONCE | T_LOGICAL_OR | T_LOGICAL_XOR | T_LOGICAL_AND
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|
| T_INSTANCEOF | T_NEW | T_CLONE | T_EXIT | T_IF | T_ELSEIF | T_ELSE | T_ENDIF | T_ECHO | T_DO | T_WHILE | T_ENDWHILE
|
|
| T_FOR | T_ENDFOR | T_FOREACH | T_ENDFOREACH | T_DECLARE | T_ENDDECLARE | T_AS | T_TRY | T_CATCH | T_FINALLY
|
|
| T_THROW | T_USE | T_INSTEADOF | T_GLOBAL | T_VAR | T_UNSET | T_ISSET | T_EMPTY | T_CONTINUE | T_GOTO
|
|
| T_FUNCTION | T_CONST | T_RETURN | T_PRINT | T_YIELD | T_LIST | T_SWITCH | T_ENDSWITCH | T_CASE | T_DEFAULT | T_BREAK
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| T_ARRAY | T_CALLABLE | T_EXTENDS | T_IMPLEMENTS | T_NAMESPACE | T_TRAIT | T_INTERFACE | T_CLASS
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|
| T_CLASS_C | T_TRAIT_C | T_FUNC_C | T_METHOD_C | T_LINE | T_FILE | T_DIR | T_NS_C | T_FN | T_MATCH | T_ENUM
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|
;
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|
semi_reserved:
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|
reserved_non_modifiers
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| T_STATIC | T_ABSTRACT | T_FINAL | T_PRIVATE | T_PROTECTED | T_PUBLIC | T_READONLY
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|
;
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|
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|
ampersand:
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|
T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG
|
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| T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG
|
|
;
|
|
|
|
identifier:
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|
T_STRING { $$ = $1; }
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|
| semi_reserved {
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zval zv;
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|
if (zend_lex_tstring(&zv, $1) == FAILURE) { YYABORT; }
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|
$$ = zend_ast_create_zval(&zv);
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}
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|
;
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|
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|
top_statement_list:
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|
top_statement_list top_statement { $$ = zend_ast_list_add($1, $2); }
|
|
| %empty { $$ = zend_ast_create_list(0, ZEND_AST_STMT_LIST); }
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|
;
|
|
|
|
/* Name usable in a namespace declaration. */
|
|
namespace_declaration_name:
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|
identifier { $$ = $1; }
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|
| T_NAME_QUALIFIED { $$ = $1; }
|
|
;
|
|
|
|
/* Name usable in "use" declarations (leading separator forbidden). */
|
|
namespace_name:
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|
T_STRING { $$ = $1; }
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|
| T_NAME_QUALIFIED { $$ = $1; }
|
|
;
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|
|
|
/* Name usable in "use" declarations (leading separator allowed). */
|
|
legacy_namespace_name:
|
|
namespace_name { $$ = $1; }
|
|
| T_NAME_FULLY_QUALIFIED { $$ = $1; }
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|
;
|
|
|
|
name:
|
|
T_STRING { $$ = $1; $$->attr = ZEND_NAME_NOT_FQ; }
|
|
| T_NAME_QUALIFIED { $$ = $1; $$->attr = ZEND_NAME_NOT_FQ; }
|
|
| T_NAME_FULLY_QUALIFIED { $$ = $1; $$->attr = ZEND_NAME_FQ; }
|
|
| T_NAME_RELATIVE { $$ = $1; $$->attr = ZEND_NAME_RELATIVE; }
|
|
;
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|
|
|
attribute_decl:
|
|
class_name
|
|
{ $$ = zend_ast_create(ZEND_AST_ATTRIBUTE, $1, NULL); }
|
|
| class_name argument_list
|
|
{ $$ = zend_ast_create(ZEND_AST_ATTRIBUTE, $1, $2); }
|
|
;
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|
|
|
attribute_group:
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|
attribute_decl
|
|
{ $$ = zend_ast_create_list(1, ZEND_AST_ATTRIBUTE_GROUP, $1); }
|
|
| attribute_group ',' attribute_decl
|
|
{ $$ = zend_ast_list_add($1, $3); }
|
|
;
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|
|
|
attribute:
|
|
T_ATTRIBUTE attribute_group possible_comma ']' { $$ = $2; }
|
|
;
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|
|
|
attributes:
|
|
attribute { $$ = zend_ast_create_list(1, ZEND_AST_ATTRIBUTE_LIST, $1); }
|
|
| attributes attribute { $$ = zend_ast_list_add($1, $2); }
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|
;
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|
|
|
attributed_statement:
|
|
function_declaration_statement { $$ = $1; }
|
|
| class_declaration_statement { $$ = $1; }
|
|
| trait_declaration_statement { $$ = $1; }
|
|
| interface_declaration_statement { $$ = $1; }
|
|
| enum_declaration_statement { $$ = $1; }
|
|
;
|
|
|
|
top_statement:
|
|
statement { $$ = $1; }
|
|
| attributed_statement { $$ = $1; }
|
|
| attributes attributed_statement { $$ = zend_ast_with_attributes($2, $1); }
|
|
| T_HALT_COMPILER '(' ')' ';'
|
|
{ $$ = zend_ast_create(ZEND_AST_HALT_COMPILER,
|
|
zend_ast_create_zval_from_long(zend_get_scanned_file_offset()));
|
|
zend_stop_lexing(); }
|
|
| T_NAMESPACE namespace_declaration_name ';'
|
|
{ $$ = zend_ast_create(ZEND_AST_NAMESPACE, $2, NULL);
|
|
RESET_DOC_COMMENT(); }
|
|
| T_NAMESPACE namespace_declaration_name { RESET_DOC_COMMENT(); }
|
|
'{' top_statement_list '}'
|
|
{ $$ = zend_ast_create(ZEND_AST_NAMESPACE, $2, $5); }
|
|
| T_NAMESPACE { RESET_DOC_COMMENT(); }
|
|
'{' top_statement_list '}'
|
|
{ $$ = zend_ast_create(ZEND_AST_NAMESPACE, NULL, $4); }
|
|
| T_USE mixed_group_use_declaration ';' { $$ = $2; }
|
|
| T_USE use_type group_use_declaration ';' { $$ = $3; $$->attr = $2; }
|
|
| T_USE use_declarations ';' { $$ = $2; $$->attr = ZEND_SYMBOL_CLASS; }
|
|
| T_USE use_type use_declarations ';' { $$ = $3; $$->attr = $2; }
|
|
| T_CONST const_list ';' { $$ = $2; }
|
|
;
|
|
|
|
use_type:
|
|
T_FUNCTION { $$ = ZEND_SYMBOL_FUNCTION; }
|
|
| T_CONST { $$ = ZEND_SYMBOL_CONST; }
|
|
;
|
|
|
|
group_use_declaration:
|
|
legacy_namespace_name T_NS_SEPARATOR '{' unprefixed_use_declarations possible_comma '}'
|
|
{ $$ = zend_ast_create(ZEND_AST_GROUP_USE, $1, $4); }
|
|
;
|
|
|
|
mixed_group_use_declaration:
|
|
legacy_namespace_name T_NS_SEPARATOR '{' inline_use_declarations possible_comma '}'
|
|
{ $$ = zend_ast_create(ZEND_AST_GROUP_USE, $1, $4);}
|
|
;
|
|
|
|
possible_comma:
|
|
%empty
|
|
| ','
|
|
;
|
|
|
|
inline_use_declarations:
|
|
inline_use_declarations ',' inline_use_declaration
|
|
{ $$ = zend_ast_list_add($1, $3); }
|
|
| inline_use_declaration
|
|
{ $$ = zend_ast_create_list(1, ZEND_AST_USE, $1); }
|
|
;
|
|
|
|
unprefixed_use_declarations:
|
|
unprefixed_use_declarations ',' unprefixed_use_declaration
|
|
{ $$ = zend_ast_list_add($1, $3); }
|
|
| unprefixed_use_declaration
|
|
{ $$ = zend_ast_create_list(1, ZEND_AST_USE, $1); }
|
|
;
|
|
|
|
use_declarations:
|
|
use_declarations ',' use_declaration
|
|
{ $$ = zend_ast_list_add($1, $3); }
|
|
| use_declaration
|
|
{ $$ = zend_ast_create_list(1, ZEND_AST_USE, $1); }
|
|
;
|
|
|
|
inline_use_declaration:
|
|
unprefixed_use_declaration { $$ = $1; $$->attr = ZEND_SYMBOL_CLASS; }
|
|
| use_type unprefixed_use_declaration { $$ = $2; $$->attr = $1; }
|
|
;
|
|
|
|
unprefixed_use_declaration:
|
|
namespace_name
|
|
{ $$ = zend_ast_create(ZEND_AST_USE_ELEM, $1, NULL); }
|
|
| namespace_name T_AS T_STRING
|
|
{ $$ = zend_ast_create(ZEND_AST_USE_ELEM, $1, $3); }
|
|
;
|
|
|
|
use_declaration:
|
|
legacy_namespace_name
|
|
{ $$ = zend_ast_create(ZEND_AST_USE_ELEM, $1, NULL); }
|
|
| legacy_namespace_name T_AS T_STRING
|
|
{ $$ = zend_ast_create(ZEND_AST_USE_ELEM, $1, $3); }
|
|
;
|
|
|
|
const_list:
|
|
const_list ',' const_decl { $$ = zend_ast_list_add($1, $3); }
|
|
| const_decl { $$ = zend_ast_create_list(1, ZEND_AST_CONST_DECL, $1); }
|
|
;
|
|
|
|
inner_statement_list:
|
|
inner_statement_list inner_statement
|
|
{ $$ = zend_ast_list_add($1, $2); }
|
|
| %empty
|
|
{ $$ = zend_ast_create_list(0, ZEND_AST_STMT_LIST); }
|
|
;
|
|
|
|
|
|
inner_statement:
|
|
statement { $$ = $1; }
|
|
| attributed_statement { $$ = $1; }
|
|
| attributes attributed_statement { $$ = zend_ast_with_attributes($2, $1); }
|
|
| T_HALT_COMPILER '(' ')' ';'
|
|
{ $$ = NULL; zend_throw_exception(zend_ce_compile_error,
|
|
"__HALT_COMPILER() can only be used from the outermost scope", 0); YYERROR; }
|
|
;
|
|
|
|
|
|
statement:
|
|
'{' inner_statement_list '}' { $$ = $2; }
|
|
| if_stmt { $$ = $1; }
|
|
| alt_if_stmt { $$ = $1; }
|
|
| T_WHILE '(' expr ')' while_statement
|
|
{ $$ = zend_ast_create(ZEND_AST_WHILE, $3, $5); }
|
|
| T_DO statement T_WHILE '(' expr ')' ';'
|
|
{ $$ = zend_ast_create(ZEND_AST_DO_WHILE, $2, $5); }
|
|
| T_FOR '(' for_exprs ';' for_exprs ';' for_exprs ')' for_statement
|
|
{ $$ = zend_ast_create(ZEND_AST_FOR, $3, $5, $7, $9); }
|
|
| T_SWITCH '(' expr ')' switch_case_list
|
|
{ $$ = zend_ast_create(ZEND_AST_SWITCH, $3, $5); }
|
|
| T_BREAK optional_expr ';' { $$ = zend_ast_create(ZEND_AST_BREAK, $2); }
|
|
| T_CONTINUE optional_expr ';' { $$ = zend_ast_create(ZEND_AST_CONTINUE, $2); }
|
|
| T_RETURN optional_expr ';' { $$ = zend_ast_create(ZEND_AST_RETURN, $2); }
|
|
| T_GLOBAL global_var_list ';' { $$ = $2; }
|
|
| T_STATIC static_var_list ';' { $$ = $2; }
|
|
| T_ECHO echo_expr_list ';' { $$ = $2; }
|
|
| T_INLINE_HTML { $$ = zend_ast_create(ZEND_AST_ECHO, $1); }
|
|
| expr ';' { $$ = $1; }
|
|
| T_UNSET '(' unset_variables possible_comma ')' ';' { $$ = $3; }
|
|
| T_FOREACH '(' expr T_AS foreach_variable ')' foreach_statement
|
|
{ $$ = zend_ast_create(ZEND_AST_FOREACH, $3, $5, NULL, $7); }
|
|
| T_FOREACH '(' expr T_AS foreach_variable T_DOUBLE_ARROW foreach_variable ')'
|
|
foreach_statement
|
|
{ $$ = zend_ast_create(ZEND_AST_FOREACH, $3, $7, $5, $9); }
|
|
| T_DECLARE '(' const_list ')'
|
|
{ if (!zend_handle_encoding_declaration($3)) { YYERROR; } }
|
|
declare_statement
|
|
{ $$ = zend_ast_create(ZEND_AST_DECLARE, $3, $6); }
|
|
| ';' /* empty statement */ { $$ = NULL; }
|
|
| T_TRY '{' inner_statement_list '}' catch_list finally_statement
|
|
{ $$ = zend_ast_create(ZEND_AST_TRY, $3, $5, $6); }
|
|
| T_GOTO T_STRING ';' { $$ = zend_ast_create(ZEND_AST_GOTO, $2); }
|
|
| T_STRING ':' { $$ = zend_ast_create(ZEND_AST_LABEL, $1); }
|
|
;
|
|
|
|
catch_list:
|
|
%empty
|
|
{ $$ = zend_ast_create_list(0, ZEND_AST_CATCH_LIST); }
|
|
| catch_list T_CATCH '(' catch_name_list optional_variable ')' '{' inner_statement_list '}'
|
|
{ $$ = zend_ast_list_add($1, zend_ast_create(ZEND_AST_CATCH, $4, $5, $8)); }
|
|
;
|
|
|
|
catch_name_list:
|
|
class_name { $$ = zend_ast_create_list(1, ZEND_AST_NAME_LIST, $1); }
|
|
| catch_name_list '|' class_name { $$ = zend_ast_list_add($1, $3); }
|
|
;
|
|
|
|
optional_variable:
|
|
%empty { $$ = NULL; }
|
|
| T_VARIABLE { $$ = $1; }
|
|
;
|
|
|
|
finally_statement:
|
|
%empty { $$ = NULL; }
|
|
| T_FINALLY '{' inner_statement_list '}' { $$ = $3; }
|
|
;
|
|
|
|
unset_variables:
|
|
unset_variable { $$ = zend_ast_create_list(1, ZEND_AST_STMT_LIST, $1); }
|
|
| unset_variables ',' unset_variable { $$ = zend_ast_list_add($1, $3); }
|
|
;
|
|
|
|
unset_variable:
|
|
variable { $$ = zend_ast_create(ZEND_AST_UNSET, $1); }
|
|
;
|
|
|
|
function_name:
|
|
T_STRING { $$ = $1; }
|
|
| T_READONLY {
|
|
zval zv;
|
|
if (zend_lex_tstring(&zv, $1) == FAILURE) { YYABORT; }
|
|
$$ = zend_ast_create_zval(&zv);
|
|
}
|
|
;
|
|
|
|
function_declaration_statement:
|
|
function returns_ref function_name backup_doc_comment '(' parameter_list ')' return_type
|
|
backup_fn_flags '{' inner_statement_list '}' backup_fn_flags
|
|
{ $$ = zend_ast_create_decl(ZEND_AST_FUNC_DECL, $2 | $13, $1, $4,
|
|
zend_ast_get_str($3), $6, NULL, $11, $8, NULL); CG(extra_fn_flags) = $9; }
|
|
;
|
|
|
|
is_reference:
|
|
%empty { $$ = 0; }
|
|
| T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG { $$ = ZEND_PARAM_REF; }
|
|
;
|
|
|
|
is_variadic:
|
|
%empty { $$ = 0; }
|
|
| T_ELLIPSIS { $$ = ZEND_PARAM_VARIADIC; }
|
|
;
|
|
|
|
class_declaration_statement:
|
|
class_modifiers T_CLASS { $<num>$ = CG(zend_lineno); }
|
|
T_STRING extends_from implements_list backup_doc_comment '{' class_statement_list '}'
|
|
{ $$ = zend_ast_create_decl(ZEND_AST_CLASS, $1, $<num>3, $7, zend_ast_get_str($4), $5, $6, $9, NULL, NULL); }
|
|
| T_CLASS { $<num>$ = CG(zend_lineno); }
|
|
T_STRING extends_from implements_list backup_doc_comment '{' class_statement_list '}'
|
|
{ $$ = zend_ast_create_decl(ZEND_AST_CLASS, 0, $<num>2, $6, zend_ast_get_str($3), $4, $5, $8, NULL, NULL); }
|
|
;
|
|
|
|
class_modifiers:
|
|
class_modifier { $$ = $1; }
|
|
| class_modifiers class_modifier
|
|
{ $$ = zend_add_class_modifier($1, $2); if (!$$) { YYERROR; } }
|
|
;
|
|
|
|
anonymous_class_modifiers:
|
|
class_modifier
|
|
{ $$ = zend_add_anonymous_class_modifier(0, $1); if (!$$) { YYERROR; } }
|
|
| anonymous_class_modifiers class_modifier
|
|
{ $$ = zend_add_anonymous_class_modifier($1, $2); if (!$$) { YYERROR; } }
|
|
;
|
|
|
|
anonymous_class_modifiers_optional:
|
|
%empty { $$ = 0; }
|
|
| anonymous_class_modifiers { $$ = $1; }
|
|
;
|
|
|
|
class_modifier:
|
|
T_ABSTRACT { $$ = ZEND_ACC_EXPLICIT_ABSTRACT_CLASS; }
|
|
| T_FINAL { $$ = ZEND_ACC_FINAL; }
|
|
| T_READONLY { $$ = ZEND_ACC_READONLY_CLASS|ZEND_ACC_NO_DYNAMIC_PROPERTIES; }
|
|
;
|
|
|
|
trait_declaration_statement:
|
|
T_TRAIT { $<num>$ = CG(zend_lineno); }
|
|
T_STRING backup_doc_comment '{' class_statement_list '}'
|
|
{ $$ = zend_ast_create_decl(ZEND_AST_CLASS, ZEND_ACC_TRAIT, $<num>2, $4, zend_ast_get_str($3), NULL, NULL, $6, NULL, NULL); }
|
|
;
|
|
|
|
interface_declaration_statement:
|
|
T_INTERFACE { $<num>$ = CG(zend_lineno); }
|
|
T_STRING interface_extends_list backup_doc_comment '{' class_statement_list '}'
|
|
{ $$ = zend_ast_create_decl(ZEND_AST_CLASS, ZEND_ACC_INTERFACE, $<num>2, $5, zend_ast_get_str($3), NULL, $4, $7, NULL, NULL); }
|
|
;
|
|
|
|
enum_declaration_statement:
|
|
T_ENUM { $<num>$ = CG(zend_lineno); }
|
|
T_STRING enum_backing_type implements_list backup_doc_comment '{' class_statement_list '}'
|
|
{ $$ = zend_ast_create_decl(ZEND_AST_CLASS, ZEND_ACC_ENUM|ZEND_ACC_FINAL, $<num>2, $6, zend_ast_get_str($3), NULL, $5, $8, NULL, $4); }
|
|
;
|
|
|
|
enum_backing_type:
|
|
%empty { $$ = NULL; }
|
|
| ':' type_expr { $$ = $2; }
|
|
;
|
|
|
|
enum_case:
|
|
T_CASE backup_doc_comment identifier enum_case_expr ';'
|
|
{ $$ = zend_ast_create(ZEND_AST_ENUM_CASE, $3, $4, ($2 ? zend_ast_create_zval_from_str($2) : NULL), NULL); }
|
|
;
|
|
|
|
enum_case_expr:
|
|
%empty { $$ = NULL; }
|
|
| '=' expr { $$ = $2; }
|
|
;
|
|
|
|
extends_from:
|
|
%empty { $$ = NULL; }
|
|
| T_EXTENDS class_name { $$ = $2; }
|
|
;
|
|
|
|
interface_extends_list:
|
|
%empty { $$ = NULL; }
|
|
| T_EXTENDS class_name_list { $$ = $2; }
|
|
;
|
|
|
|
implements_list:
|
|
%empty { $$ = NULL; }
|
|
| T_IMPLEMENTS class_name_list { $$ = $2; }
|
|
;
|
|
|
|
foreach_variable:
|
|
variable { $$ = $1; }
|
|
| ampersand variable { $$ = zend_ast_create(ZEND_AST_REF, $2); }
|
|
| T_LIST '(' array_pair_list ')' { $$ = $3; $$->attr = ZEND_ARRAY_SYNTAX_LIST; }
|
|
| '[' array_pair_list ']' { $$ = $2; $$->attr = ZEND_ARRAY_SYNTAX_SHORT; }
|
|
;
|
|
|
|
for_statement:
|
|
statement { $$ = $1; }
|
|
| ':' inner_statement_list T_ENDFOR ';' { $$ = $2; }
|
|
;
|
|
|
|
foreach_statement:
|
|
statement { $$ = $1; }
|
|
| ':' inner_statement_list T_ENDFOREACH ';' { $$ = $2; }
|
|
;
|
|
|
|
declare_statement:
|
|
statement { $$ = $1; }
|
|
| ':' inner_statement_list T_ENDDECLARE ';' { $$ = $2; }
|
|
;
|
|
|
|
switch_case_list:
|
|
'{' case_list '}' { $$ = $2; }
|
|
| '{' ';' case_list '}' { $$ = $3; }
|
|
| ':' case_list T_ENDSWITCH ';' { $$ = $2; }
|
|
| ':' ';' case_list T_ENDSWITCH ';' { $$ = $3; }
|
|
;
|
|
|
|
case_list:
|
|
%empty { $$ = zend_ast_create_list(0, ZEND_AST_SWITCH_LIST); }
|
|
| case_list T_CASE expr case_separator inner_statement_list
|
|
{ $$ = zend_ast_list_add($1, zend_ast_create(ZEND_AST_SWITCH_CASE, $3, $5)); }
|
|
| case_list T_DEFAULT case_separator inner_statement_list
|
|
{ $$ = zend_ast_list_add($1, zend_ast_create(ZEND_AST_SWITCH_CASE, NULL, $4)); }
|
|
;
|
|
|
|
case_separator:
|
|
':'
|
|
| ';'
|
|
;
|
|
|
|
|
|
match:
|
|
T_MATCH '(' expr ')' '{' match_arm_list '}'
|
|
{ $$ = zend_ast_create(ZEND_AST_MATCH, $3, $6); };
|
|
;
|
|
|
|
match_arm_list:
|
|
%empty { $$ = zend_ast_create_list(0, ZEND_AST_MATCH_ARM_LIST); }
|
|
| non_empty_match_arm_list possible_comma { $$ = $1; }
|
|
;
|
|
|
|
non_empty_match_arm_list:
|
|
match_arm { $$ = zend_ast_create_list(1, ZEND_AST_MATCH_ARM_LIST, $1); }
|
|
| non_empty_match_arm_list ',' match_arm { $$ = zend_ast_list_add($1, $3); }
|
|
;
|
|
|
|
match_arm:
|
|
match_arm_cond_list possible_comma T_DOUBLE_ARROW expr
|
|
{ $$ = zend_ast_create(ZEND_AST_MATCH_ARM, $1, $4); }
|
|
| T_DEFAULT possible_comma T_DOUBLE_ARROW expr
|
|
{ $$ = zend_ast_create(ZEND_AST_MATCH_ARM, NULL, $4); }
|
|
;
|
|
|
|
match_arm_cond_list:
|
|
expr { $$ = zend_ast_create_list(1, ZEND_AST_EXPR_LIST, $1); }
|
|
| match_arm_cond_list ',' expr { $$ = zend_ast_list_add($1, $3); }
|
|
;
|
|
|
|
|
|
while_statement:
|
|
statement { $$ = $1; }
|
|
| ':' inner_statement_list T_ENDWHILE ';' { $$ = $2; }
|
|
;
|
|
|
|
|
|
if_stmt_without_else:
|
|
T_IF '(' expr ')' statement
|
|
{ $$ = zend_ast_create_list(1, ZEND_AST_IF,
|
|
zend_ast_create(ZEND_AST_IF_ELEM, $3, $5)); }
|
|
| if_stmt_without_else T_ELSEIF '(' expr ')' statement
|
|
{ $$ = zend_ast_list_add($1,
|
|
zend_ast_create(ZEND_AST_IF_ELEM, $4, $6)); }
|
|
;
|
|
|
|
if_stmt:
|
|
if_stmt_without_else %prec T_NOELSE { $$ = $1; }
|
|
| if_stmt_without_else T_ELSE statement
|
|
{ $$ = zend_ast_list_add($1, zend_ast_create(ZEND_AST_IF_ELEM, NULL, $3)); }
|
|
;
|
|
|
|
alt_if_stmt_without_else:
|
|
T_IF '(' expr ')' ':' inner_statement_list
|
|
{ $$ = zend_ast_create_list(1, ZEND_AST_IF,
|
|
zend_ast_create(ZEND_AST_IF_ELEM, $3, $6)); }
|
|
| alt_if_stmt_without_else T_ELSEIF '(' expr ')' ':' inner_statement_list
|
|
{ $$ = zend_ast_list_add($1,
|
|
zend_ast_create(ZEND_AST_IF_ELEM, $4, $7)); }
|
|
;
|
|
|
|
alt_if_stmt:
|
|
alt_if_stmt_without_else T_ENDIF ';' { $$ = $1; }
|
|
| alt_if_stmt_without_else T_ELSE ':' inner_statement_list T_ENDIF ';'
|
|
{ $$ = zend_ast_list_add($1,
|
|
zend_ast_create(ZEND_AST_IF_ELEM, NULL, $4)); }
|
|
;
|
|
|
|
parameter_list:
|
|
non_empty_parameter_list possible_comma { $$ = $1; }
|
|
| %empty { $$ = zend_ast_create_list(0, ZEND_AST_PARAM_LIST); }
|
|
;
|
|
|
|
|
|
non_empty_parameter_list:
|
|
attributed_parameter
|
|
{ $$ = zend_ast_create_list(1, ZEND_AST_PARAM_LIST, $1); }
|
|
| non_empty_parameter_list ',' attributed_parameter
|
|
{ $$ = zend_ast_list_add($1, $3); }
|
|
;
|
|
|
|
attributed_parameter:
|
|
attributes parameter { $$ = zend_ast_with_attributes($2, $1); }
|
|
| parameter { $$ = $1; }
|
|
;
|
|
|
|
optional_cpp_modifiers:
|
|
%empty
|
|
{ $$ = 0; }
|
|
| non_empty_member_modifiers
|
|
{ $$ = zend_modifier_list_to_flags(ZEND_MODIFIER_TARGET_CPP, $1);
|
|
if (!$$) { YYERROR; } }
|
|
;
|
|
|
|
parameter:
|
|
optional_cpp_modifiers optional_type_without_static
|
|
is_reference is_variadic T_VARIABLE backup_doc_comment
|
|
{ $$ = zend_ast_create_ex(ZEND_AST_PARAM, $1 | $3 | $4, $2, $5, NULL,
|
|
NULL, $6 ? zend_ast_create_zval_from_str($6) : NULL); }
|
|
| optional_cpp_modifiers optional_type_without_static
|
|
is_reference is_variadic T_VARIABLE backup_doc_comment '=' expr
|
|
{ $$ = zend_ast_create_ex(ZEND_AST_PARAM, $1 | $3 | $4, $2, $5, $8,
|
|
NULL, $6 ? zend_ast_create_zval_from_str($6) : NULL); }
|
|
;
|
|
|
|
optional_type_without_static:
|
|
%empty { $$ = NULL; }
|
|
| type_expr_without_static { $$ = $1; }
|
|
;
|
|
|
|
type_expr:
|
|
type { $$ = $1; }
|
|
| '?' type { $$ = $2; $$->attr |= ZEND_TYPE_NULLABLE; }
|
|
| union_type { $$ = $1; }
|
|
| intersection_type { $$ = $1; }
|
|
;
|
|
|
|
type:
|
|
type_without_static { $$ = $1; }
|
|
| T_STATIC { $$ = zend_ast_create_ex(ZEND_AST_TYPE, IS_STATIC); }
|
|
;
|
|
|
|
union_type_element:
|
|
type { $$ = $1; }
|
|
| '(' intersection_type ')' { $$ = $2; }
|
|
;
|
|
|
|
union_type:
|
|
union_type_element '|' union_type_element
|
|
{ $$ = zend_ast_create_list(2, ZEND_AST_TYPE_UNION, $1, $3); }
|
|
| union_type '|' union_type_element
|
|
{ $$ = zend_ast_list_add($1, $3); }
|
|
;
|
|
|
|
intersection_type:
|
|
type T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG type { $$ = zend_ast_create_list(2, ZEND_AST_TYPE_INTERSECTION, $1, $3); }
|
|
| intersection_type T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG type { $$ = zend_ast_list_add($1, $3); }
|
|
;
|
|
|
|
/* Duplicate the type rules without "static",
|
|
* to avoid conflicts with "static" modifier for properties. */
|
|
|
|
type_expr_without_static:
|
|
type_without_static { $$ = $1; }
|
|
| '?' type_without_static { $$ = $2; $$->attr |= ZEND_TYPE_NULLABLE; }
|
|
| union_type_without_static { $$ = $1; }
|
|
| intersection_type_without_static { $$ = $1; }
|
|
;
|
|
|
|
type_without_static:
|
|
T_ARRAY { $$ = zend_ast_create_ex(ZEND_AST_TYPE, IS_ARRAY); }
|
|
| T_CALLABLE { $$ = zend_ast_create_ex(ZEND_AST_TYPE, IS_CALLABLE); }
|
|
| name { $$ = $1; }
|
|
;
|
|
|
|
union_type_without_static_element:
|
|
type_without_static { $$ = $1; }
|
|
| '(' intersection_type_without_static ')' { $$ = $2; }
|
|
;
|
|
|
|
union_type_without_static:
|
|
union_type_without_static_element '|' union_type_without_static_element
|
|
{ $$ = zend_ast_create_list(2, ZEND_AST_TYPE_UNION, $1, $3); }
|
|
| union_type_without_static '|' union_type_without_static_element
|
|
{ $$ = zend_ast_list_add($1, $3); }
|
|
;
|
|
|
|
intersection_type_without_static:
|
|
type_without_static T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG type_without_static
|
|
{ $$ = zend_ast_create_list(2, ZEND_AST_TYPE_INTERSECTION, $1, $3); }
|
|
| intersection_type_without_static T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG type_without_static
|
|
{ $$ = zend_ast_list_add($1, $3); }
|
|
;
|
|
|
|
return_type:
|
|
%empty { $$ = NULL; }
|
|
| ':' type_expr { $$ = $2; }
|
|
;
|
|
|
|
argument_list:
|
|
'(' ')' { $$ = zend_ast_create_list(0, ZEND_AST_ARG_LIST); }
|
|
| '(' non_empty_argument_list possible_comma ')' { $$ = $2; }
|
|
| '(' T_ELLIPSIS ')' { $$ = zend_ast_create(ZEND_AST_CALLABLE_CONVERT); }
|
|
;
|
|
|
|
non_empty_argument_list:
|
|
argument
|
|
{ $$ = zend_ast_create_list(1, ZEND_AST_ARG_LIST, $1); }
|
|
| non_empty_argument_list ',' argument
|
|
{ $$ = zend_ast_list_add($1, $3); }
|
|
;
|
|
|
|
argument:
|
|
expr { $$ = $1; }
|
|
| identifier ':' expr
|
|
{ $$ = zend_ast_create(ZEND_AST_NAMED_ARG, $1, $3); }
|
|
| T_ELLIPSIS expr { $$ = zend_ast_create(ZEND_AST_UNPACK, $2); }
|
|
;
|
|
|
|
global_var_list:
|
|
global_var_list ',' global_var { $$ = zend_ast_list_add($1, $3); }
|
|
| global_var { $$ = zend_ast_create_list(1, ZEND_AST_STMT_LIST, $1); }
|
|
;
|
|
|
|
global_var:
|
|
simple_variable
|
|
{ $$ = zend_ast_create(ZEND_AST_GLOBAL, zend_ast_create(ZEND_AST_VAR, $1)); }
|
|
;
|
|
|
|
|
|
static_var_list:
|
|
static_var_list ',' static_var { $$ = zend_ast_list_add($1, $3); }
|
|
| static_var { $$ = zend_ast_create_list(1, ZEND_AST_STMT_LIST, $1); }
|
|
;
|
|
|
|
static_var:
|
|
T_VARIABLE { $$ = zend_ast_create(ZEND_AST_STATIC, $1, NULL); }
|
|
| T_VARIABLE '=' expr { $$ = zend_ast_create(ZEND_AST_STATIC, $1, $3); }
|
|
;
|
|
|
|
class_statement_list:
|
|
class_statement_list class_statement
|
|
{ $$ = zend_ast_list_add($1, $2); }
|
|
| %empty
|
|
{ $$ = zend_ast_create_list(0, ZEND_AST_STMT_LIST); }
|
|
;
|
|
|
|
|
|
attributed_class_statement:
|
|
property_modifiers optional_type_without_static property_list ';'
|
|
{ $$ = zend_ast_create(ZEND_AST_PROP_GROUP, $2, $3, NULL);
|
|
$$->attr = $1; }
|
|
| class_const_modifiers T_CONST class_const_list ';'
|
|
{ $$ = zend_ast_create(ZEND_AST_CLASS_CONST_GROUP, $3, NULL, NULL);
|
|
$$->attr = $1; }
|
|
| class_const_modifiers T_CONST type_expr class_const_list ';'
|
|
{ $$ = zend_ast_create(ZEND_AST_CLASS_CONST_GROUP, $4, NULL, $3);
|
|
$$->attr = $1; }
|
|
| method_modifiers function returns_ref identifier backup_doc_comment '(' parameter_list ')'
|
|
return_type backup_fn_flags method_body backup_fn_flags
|
|
{ $$ = zend_ast_create_decl(ZEND_AST_METHOD, $3 | $1 | $12, $2, $5,
|
|
zend_ast_get_str($4), $7, NULL, $11, $9, NULL); CG(extra_fn_flags) = $10; }
|
|
| enum_case { $$ = $1; }
|
|
;
|
|
|
|
class_statement:
|
|
attributed_class_statement { $$ = $1; }
|
|
| attributes attributed_class_statement { $$ = zend_ast_with_attributes($2, $1); }
|
|
| T_USE class_name_list trait_adaptations
|
|
{ $$ = zend_ast_create(ZEND_AST_USE_TRAIT, $2, $3); }
|
|
;
|
|
|
|
class_name_list:
|
|
class_name { $$ = zend_ast_create_list(1, ZEND_AST_NAME_LIST, $1); }
|
|
| class_name_list ',' class_name { $$ = zend_ast_list_add($1, $3); }
|
|
;
|
|
|
|
trait_adaptations:
|
|
';' { $$ = NULL; }
|
|
| '{' '}' { $$ = NULL; }
|
|
| '{' trait_adaptation_list '}' { $$ = $2; }
|
|
;
|
|
|
|
trait_adaptation_list:
|
|
trait_adaptation
|
|
{ $$ = zend_ast_create_list(1, ZEND_AST_TRAIT_ADAPTATIONS, $1); }
|
|
| trait_adaptation_list trait_adaptation
|
|
{ $$ = zend_ast_list_add($1, $2); }
|
|
;
|
|
|
|
trait_adaptation:
|
|
trait_precedence ';' { $$ = $1; }
|
|
| trait_alias ';' { $$ = $1; }
|
|
;
|
|
|
|
trait_precedence:
|
|
absolute_trait_method_reference T_INSTEADOF class_name_list
|
|
{ $$ = zend_ast_create(ZEND_AST_TRAIT_PRECEDENCE, $1, $3); }
|
|
;
|
|
|
|
trait_alias:
|
|
trait_method_reference T_AS T_STRING
|
|
{ $$ = zend_ast_create(ZEND_AST_TRAIT_ALIAS, $1, $3); }
|
|
| trait_method_reference T_AS reserved_non_modifiers
|
|
{ zval zv;
|
|
if (zend_lex_tstring(&zv, $3) == FAILURE) { YYABORT; }
|
|
$$ = zend_ast_create(ZEND_AST_TRAIT_ALIAS, $1, zend_ast_create_zval(&zv)); }
|
|
| trait_method_reference T_AS member_modifier identifier
|
|
{ uint32_t modifiers = zend_modifier_token_to_flag(ZEND_MODIFIER_TARGET_METHOD, $3);
|
|
$$ = zend_ast_create_ex(ZEND_AST_TRAIT_ALIAS, modifiers, $1, $4);
|
|
/* identifier nonterminal can cause allocations, so we need to free the node */
|
|
if (!modifiers) { zend_ast_destroy($$); YYERROR; } }
|
|
| trait_method_reference T_AS member_modifier
|
|
{ uint32_t modifiers = zend_modifier_token_to_flag(ZEND_MODIFIER_TARGET_METHOD, $3);
|
|
$$ = zend_ast_create_ex(ZEND_AST_TRAIT_ALIAS, modifiers, $1, NULL);
|
|
/* identifier nonterminal can cause allocations, so we need to free the node */
|
|
if (!modifiers) { zend_ast_destroy($$); YYERROR; } }
|
|
;
|
|
|
|
trait_method_reference:
|
|
identifier
|
|
{ $$ = zend_ast_create(ZEND_AST_METHOD_REFERENCE, NULL, $1); }
|
|
| absolute_trait_method_reference { $$ = $1; }
|
|
;
|
|
|
|
absolute_trait_method_reference:
|
|
class_name T_PAAMAYIM_NEKUDOTAYIM identifier
|
|
{ $$ = zend_ast_create(ZEND_AST_METHOD_REFERENCE, $1, $3); }
|
|
;
|
|
|
|
method_body:
|
|
';' /* abstract method */ { $$ = NULL; }
|
|
| '{' inner_statement_list '}' { $$ = $2; }
|
|
;
|
|
|
|
property_modifiers:
|
|
non_empty_member_modifiers
|
|
{ $$ = zend_modifier_list_to_flags(ZEND_MODIFIER_TARGET_PROPERTY, $1);
|
|
if (!$$) { YYERROR; } }
|
|
| T_VAR
|
|
{ $$ = ZEND_ACC_PUBLIC; }
|
|
;
|
|
|
|
method_modifiers:
|
|
%empty
|
|
{ $$ = ZEND_ACC_PUBLIC; }
|
|
| non_empty_member_modifiers
|
|
{ $$ = zend_modifier_list_to_flags(ZEND_MODIFIER_TARGET_METHOD, $1);
|
|
if (!$$) { YYERROR; }
|
|
if (!($$ & ZEND_ACC_PPP_MASK)) { $$ |= ZEND_ACC_PUBLIC; } }
|
|
;
|
|
|
|
class_const_modifiers:
|
|
%empty
|
|
{ $$ = ZEND_ACC_PUBLIC; }
|
|
| non_empty_member_modifiers
|
|
{ $$ = zend_modifier_list_to_flags(ZEND_MODIFIER_TARGET_CONSTANT, $1);
|
|
if (!$$) { YYERROR; }
|
|
if (!($$ & ZEND_ACC_PPP_MASK)) { $$ |= ZEND_ACC_PUBLIC; } }
|
|
;
|
|
|
|
non_empty_member_modifiers:
|
|
member_modifier
|
|
{ $$ = zend_ast_create_list(1, ZEND_AST_MODIFIER_LIST, zend_ast_create_zval_from_long($1)); }
|
|
| non_empty_member_modifiers member_modifier
|
|
{ $$ = zend_ast_list_add($1, zend_ast_create_zval_from_long($2)); }
|
|
;
|
|
|
|
member_modifier:
|
|
T_PUBLIC { $$ = T_PUBLIC; }
|
|
| T_PROTECTED { $$ = T_PROTECTED; }
|
|
| T_PRIVATE { $$ = T_PRIVATE; }
|
|
| T_STATIC { $$ = T_STATIC; }
|
|
| T_ABSTRACT { $$ = T_ABSTRACT; }
|
|
| T_FINAL { $$ = T_FINAL; }
|
|
| T_READONLY { $$ = T_READONLY; }
|
|
;
|
|
|
|
property_list:
|
|
property_list ',' property { $$ = zend_ast_list_add($1, $3); }
|
|
| property { $$ = zend_ast_create_list(1, ZEND_AST_PROP_DECL, $1); }
|
|
;
|
|
|
|
property:
|
|
T_VARIABLE backup_doc_comment
|
|
{ $$ = zend_ast_create(ZEND_AST_PROP_ELEM, $1, NULL, ($2 ? zend_ast_create_zval_from_str($2) : NULL)); }
|
|
| T_VARIABLE '=' expr backup_doc_comment
|
|
{ $$ = zend_ast_create(ZEND_AST_PROP_ELEM, $1, $3, ($4 ? zend_ast_create_zval_from_str($4) : NULL)); }
|
|
;
|
|
|
|
class_const_list:
|
|
class_const_list ',' class_const_decl { $$ = zend_ast_list_add($1, $3); }
|
|
| class_const_decl { $$ = zend_ast_create_list(1, ZEND_AST_CLASS_CONST_DECL, $1); }
|
|
;
|
|
|
|
class_const_decl:
|
|
T_STRING '=' expr backup_doc_comment { $$ = zend_ast_create(ZEND_AST_CONST_ELEM, $1, $3, ($4 ? zend_ast_create_zval_from_str($4) : NULL)); }
|
|
| semi_reserved '=' expr backup_doc_comment {
|
|
zval zv;
|
|
if (zend_lex_tstring(&zv, $1) == FAILURE) { YYABORT; }
|
|
$$ = zend_ast_create(ZEND_AST_CONST_ELEM, zend_ast_create_zval(&zv), $3, ($4 ? zend_ast_create_zval_from_str($4) : NULL));
|
|
}
|
|
;
|
|
|
|
const_decl:
|
|
T_STRING '=' expr backup_doc_comment { $$ = zend_ast_create(ZEND_AST_CONST_ELEM, $1, $3, ($4 ? zend_ast_create_zval_from_str($4) : NULL)); }
|
|
;
|
|
|
|
echo_expr_list:
|
|
echo_expr_list ',' echo_expr { $$ = zend_ast_list_add($1, $3); }
|
|
| echo_expr { $$ = zend_ast_create_list(1, ZEND_AST_STMT_LIST, $1); }
|
|
;
|
|
echo_expr:
|
|
expr { $$ = zend_ast_create(ZEND_AST_ECHO, $1); }
|
|
;
|
|
|
|
for_exprs:
|
|
%empty { $$ = NULL; }
|
|
| non_empty_for_exprs { $$ = $1; }
|
|
;
|
|
|
|
non_empty_for_exprs:
|
|
non_empty_for_exprs ',' expr { $$ = zend_ast_list_add($1, $3); }
|
|
| expr { $$ = zend_ast_create_list(1, ZEND_AST_EXPR_LIST, $1); }
|
|
;
|
|
|
|
anonymous_class:
|
|
anonymous_class_modifiers_optional T_CLASS { $<num>$ = CG(zend_lineno); } ctor_arguments
|
|
extends_from implements_list backup_doc_comment '{' class_statement_list '}' {
|
|
zend_ast *decl = zend_ast_create_decl(
|
|
ZEND_AST_CLASS, ZEND_ACC_ANON_CLASS | $1, $<num>3, $7, NULL,
|
|
$5, $6, $9, NULL, NULL);
|
|
$$ = zend_ast_create(ZEND_AST_NEW, decl, $4);
|
|
}
|
|
;
|
|
|
|
new_expr:
|
|
T_NEW class_name_reference ctor_arguments
|
|
{ $$ = zend_ast_create(ZEND_AST_NEW, $2, $3); }
|
|
| T_NEW anonymous_class
|
|
{ $$ = $2; }
|
|
| T_NEW attributes anonymous_class
|
|
{ zend_ast_with_attributes($3->child[0], $2); $$ = $3; }
|
|
;
|
|
|
|
expr:
|
|
variable
|
|
{ $$ = $1; }
|
|
| T_LIST '(' array_pair_list ')' '=' expr
|
|
{ $3->attr = ZEND_ARRAY_SYNTAX_LIST; $$ = zend_ast_create(ZEND_AST_ASSIGN, $3, $6); }
|
|
| '[' array_pair_list ']' '=' expr
|
|
{ $2->attr = ZEND_ARRAY_SYNTAX_SHORT; $$ = zend_ast_create(ZEND_AST_ASSIGN, $2, $5); }
|
|
| variable '=' expr
|
|
{ $$ = zend_ast_create(ZEND_AST_ASSIGN, $1, $3); }
|
|
| variable '=' ampersand variable
|
|
{ $$ = zend_ast_create(ZEND_AST_ASSIGN_REF, $1, $4); }
|
|
| T_CLONE expr { $$ = zend_ast_create(ZEND_AST_CLONE, $2); }
|
|
| variable T_PLUS_EQUAL expr
|
|
{ $$ = zend_ast_create_assign_op(ZEND_ADD, $1, $3); }
|
|
| variable T_MINUS_EQUAL expr
|
|
{ $$ = zend_ast_create_assign_op(ZEND_SUB, $1, $3); }
|
|
| variable T_MUL_EQUAL expr
|
|
{ $$ = zend_ast_create_assign_op(ZEND_MUL, $1, $3); }
|
|
| variable T_POW_EQUAL expr
|
|
{ $$ = zend_ast_create_assign_op(ZEND_POW, $1, $3); }
|
|
| variable T_DIV_EQUAL expr
|
|
{ $$ = zend_ast_create_assign_op(ZEND_DIV, $1, $3); }
|
|
| variable T_CONCAT_EQUAL expr
|
|
{ $$ = zend_ast_create_assign_op(ZEND_CONCAT, $1, $3); }
|
|
| variable T_MOD_EQUAL expr
|
|
{ $$ = zend_ast_create_assign_op(ZEND_MOD, $1, $3); }
|
|
| variable T_AND_EQUAL expr
|
|
{ $$ = zend_ast_create_assign_op(ZEND_BW_AND, $1, $3); }
|
|
| variable T_OR_EQUAL expr
|
|
{ $$ = zend_ast_create_assign_op(ZEND_BW_OR, $1, $3); }
|
|
| variable T_XOR_EQUAL expr
|
|
{ $$ = zend_ast_create_assign_op(ZEND_BW_XOR, $1, $3); }
|
|
| variable T_SL_EQUAL expr
|
|
{ $$ = zend_ast_create_assign_op(ZEND_SL, $1, $3); }
|
|
| variable T_SR_EQUAL expr
|
|
{ $$ = zend_ast_create_assign_op(ZEND_SR, $1, $3); }
|
|
| variable T_COALESCE_EQUAL expr
|
|
{ $$ = zend_ast_create(ZEND_AST_ASSIGN_COALESCE, $1, $3); }
|
|
| variable T_INC { $$ = zend_ast_create(ZEND_AST_POST_INC, $1); }
|
|
| T_INC variable { $$ = zend_ast_create(ZEND_AST_PRE_INC, $2); }
|
|
| variable T_DEC { $$ = zend_ast_create(ZEND_AST_POST_DEC, $1); }
|
|
| T_DEC variable { $$ = zend_ast_create(ZEND_AST_PRE_DEC, $2); }
|
|
| expr T_BOOLEAN_OR expr
|
|
{ $$ = zend_ast_create(ZEND_AST_OR, $1, $3); }
|
|
| expr T_BOOLEAN_AND expr
|
|
{ $$ = zend_ast_create(ZEND_AST_AND, $1, $3); }
|
|
| expr T_LOGICAL_OR expr
|
|
{ $$ = zend_ast_create(ZEND_AST_OR, $1, $3); }
|
|
| expr T_LOGICAL_AND expr
|
|
{ $$ = zend_ast_create(ZEND_AST_AND, $1, $3); }
|
|
| expr T_LOGICAL_XOR expr
|
|
{ $$ = zend_ast_create_binary_op(ZEND_BOOL_XOR, $1, $3); }
|
|
| expr '|' expr { $$ = zend_ast_create_binary_op(ZEND_BW_OR, $1, $3); }
|
|
| expr T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG expr { $$ = zend_ast_create_binary_op(ZEND_BW_AND, $1, $3); }
|
|
| expr T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG expr { $$ = zend_ast_create_binary_op(ZEND_BW_AND, $1, $3); }
|
|
| expr '^' expr { $$ = zend_ast_create_binary_op(ZEND_BW_XOR, $1, $3); }
|
|
| expr '.' expr { $$ = zend_ast_create_concat_op($1, $3); }
|
|
| expr '+' expr { $$ = zend_ast_create_binary_op(ZEND_ADD, $1, $3); }
|
|
| expr '-' expr { $$ = zend_ast_create_binary_op(ZEND_SUB, $1, $3); }
|
|
| expr '*' expr { $$ = zend_ast_create_binary_op(ZEND_MUL, $1, $3); }
|
|
| expr T_POW expr { $$ = zend_ast_create_binary_op(ZEND_POW, $1, $3); }
|
|
| expr '/' expr { $$ = zend_ast_create_binary_op(ZEND_DIV, $1, $3); }
|
|
| expr '%' expr { $$ = zend_ast_create_binary_op(ZEND_MOD, $1, $3); }
|
|
| expr T_SL expr { $$ = zend_ast_create_binary_op(ZEND_SL, $1, $3); }
|
|
| expr T_SR expr { $$ = zend_ast_create_binary_op(ZEND_SR, $1, $3); }
|
|
| '+' expr %prec '~' { $$ = zend_ast_create(ZEND_AST_UNARY_PLUS, $2); }
|
|
| '-' expr %prec '~' { $$ = zend_ast_create(ZEND_AST_UNARY_MINUS, $2); }
|
|
| '!' expr { $$ = zend_ast_create_ex(ZEND_AST_UNARY_OP, ZEND_BOOL_NOT, $2); }
|
|
| '~' expr { $$ = zend_ast_create_ex(ZEND_AST_UNARY_OP, ZEND_BW_NOT, $2); }
|
|
| expr T_IS_IDENTICAL expr
|
|
{ $$ = zend_ast_create_binary_op(ZEND_IS_IDENTICAL, $1, $3); }
|
|
| expr T_IS_NOT_IDENTICAL expr
|
|
{ $$ = zend_ast_create_binary_op(ZEND_IS_NOT_IDENTICAL, $1, $3); }
|
|
| expr T_IS_EQUAL expr
|
|
{ $$ = zend_ast_create_binary_op(ZEND_IS_EQUAL, $1, $3); }
|
|
| expr T_IS_NOT_EQUAL expr
|
|
{ $$ = zend_ast_create_binary_op(ZEND_IS_NOT_EQUAL, $1, $3); }
|
|
| expr '<' expr
|
|
{ $$ = zend_ast_create_binary_op(ZEND_IS_SMALLER, $1, $3); }
|
|
| expr T_IS_SMALLER_OR_EQUAL expr
|
|
{ $$ = zend_ast_create_binary_op(ZEND_IS_SMALLER_OR_EQUAL, $1, $3); }
|
|
| expr '>' expr
|
|
{ $$ = zend_ast_create(ZEND_AST_GREATER, $1, $3); }
|
|
| expr T_IS_GREATER_OR_EQUAL expr
|
|
{ $$ = zend_ast_create(ZEND_AST_GREATER_EQUAL, $1, $3); }
|
|
| expr T_SPACESHIP expr
|
|
{ $$ = zend_ast_create_binary_op(ZEND_SPACESHIP, $1, $3); }
|
|
| expr T_INSTANCEOF class_name_reference
|
|
{ $$ = zend_ast_create(ZEND_AST_INSTANCEOF, $1, $3); }
|
|
| '(' expr ')' {
|
|
$$ = $2;
|
|
if ($$->kind == ZEND_AST_CONDITIONAL) $$->attr = ZEND_PARENTHESIZED_CONDITIONAL;
|
|
}
|
|
| new_expr { $$ = $1; }
|
|
| expr '?' expr ':' expr
|
|
{ $$ = zend_ast_create(ZEND_AST_CONDITIONAL, $1, $3, $5); }
|
|
| expr '?' ':' expr
|
|
{ $$ = zend_ast_create(ZEND_AST_CONDITIONAL, $1, NULL, $4); }
|
|
| expr T_COALESCE expr
|
|
{ $$ = zend_ast_create(ZEND_AST_COALESCE, $1, $3); }
|
|
| internal_functions_in_yacc { $$ = $1; }
|
|
| T_INT_CAST expr { $$ = zend_ast_create_cast(IS_LONG, $2); }
|
|
| T_DOUBLE_CAST expr { $$ = zend_ast_create_cast(IS_DOUBLE, $2); }
|
|
| T_STRING_CAST expr { $$ = zend_ast_create_cast(IS_STRING, $2); }
|
|
| T_ARRAY_CAST expr { $$ = zend_ast_create_cast(IS_ARRAY, $2); }
|
|
| T_OBJECT_CAST expr { $$ = zend_ast_create_cast(IS_OBJECT, $2); }
|
|
| T_BOOL_CAST expr { $$ = zend_ast_create_cast(_IS_BOOL, $2); }
|
|
| T_UNSET_CAST expr { $$ = zend_ast_create_cast(IS_NULL, $2); }
|
|
| T_EXIT exit_expr { $$ = zend_ast_create(ZEND_AST_EXIT, $2); }
|
|
| '@' expr { $$ = zend_ast_create(ZEND_AST_SILENCE, $2); }
|
|
| scalar { $$ = $1; }
|
|
| '`' backticks_expr '`' { $$ = zend_ast_create(ZEND_AST_SHELL_EXEC, $2); }
|
|
| T_PRINT expr { $$ = zend_ast_create(ZEND_AST_PRINT, $2); }
|
|
| T_YIELD { $$ = zend_ast_create(ZEND_AST_YIELD, NULL, NULL); CG(extra_fn_flags) |= ZEND_ACC_GENERATOR; }
|
|
| T_YIELD expr { $$ = zend_ast_create(ZEND_AST_YIELD, $2, NULL); CG(extra_fn_flags) |= ZEND_ACC_GENERATOR; }
|
|
| T_YIELD expr T_DOUBLE_ARROW expr { $$ = zend_ast_create(ZEND_AST_YIELD, $4, $2); CG(extra_fn_flags) |= ZEND_ACC_GENERATOR; }
|
|
| T_YIELD_FROM expr { $$ = zend_ast_create(ZEND_AST_YIELD_FROM, $2); CG(extra_fn_flags) |= ZEND_ACC_GENERATOR; }
|
|
| T_THROW expr { $$ = zend_ast_create(ZEND_AST_THROW, $2); }
|
|
| inline_function { $$ = $1; }
|
|
| attributes inline_function { $$ = zend_ast_with_attributes($2, $1); }
|
|
| T_STATIC inline_function { $$ = $2; ((zend_ast_decl *) $$)->flags |= ZEND_ACC_STATIC; }
|
|
| attributes T_STATIC inline_function
|
|
{ $$ = zend_ast_with_attributes($3, $1); ((zend_ast_decl *) $$)->flags |= ZEND_ACC_STATIC; }
|
|
| match { $$ = $1; }
|
|
;
|
|
|
|
|
|
inline_function:
|
|
function returns_ref backup_doc_comment '(' parameter_list ')' lexical_vars return_type
|
|
backup_fn_flags '{' inner_statement_list '}' backup_fn_flags
|
|
{ $$ = zend_ast_create_decl(ZEND_AST_CLOSURE, $2 | $13, $1, $3,
|
|
ZSTR_INIT_LITERAL("{closure}", 0),
|
|
$5, $7, $11, $8, NULL); CG(extra_fn_flags) = $9; }
|
|
| fn returns_ref backup_doc_comment '(' parameter_list ')' return_type
|
|
T_DOUBLE_ARROW backup_fn_flags backup_lex_pos expr backup_fn_flags
|
|
{ $$ = zend_ast_create_decl(ZEND_AST_ARROW_FUNC, $2 | $12, $1, $3,
|
|
ZSTR_INIT_LITERAL("{closure}", 0), $5, NULL, $11, $7, NULL);
|
|
CG(extra_fn_flags) = $9; }
|
|
;
|
|
|
|
fn:
|
|
T_FN { $$ = CG(zend_lineno); }
|
|
;
|
|
|
|
function:
|
|
T_FUNCTION { $$ = CG(zend_lineno); }
|
|
;
|
|
|
|
backup_doc_comment:
|
|
%empty { $$ = CG(doc_comment); CG(doc_comment) = NULL; }
|
|
;
|
|
|
|
backup_fn_flags:
|
|
%prec PREC_ARROW_FUNCTION %empty { $$ = CG(extra_fn_flags); CG(extra_fn_flags) = 0; }
|
|
;
|
|
|
|
backup_lex_pos:
|
|
%empty { $$ = LANG_SCNG(yy_text); }
|
|
;
|
|
|
|
returns_ref:
|
|
%empty { $$ = 0; }
|
|
| ampersand { $$ = ZEND_ACC_RETURN_REFERENCE; }
|
|
;
|
|
|
|
lexical_vars:
|
|
%empty { $$ = NULL; }
|
|
| T_USE '(' lexical_var_list possible_comma ')' { $$ = $3; }
|
|
;
|
|
|
|
lexical_var_list:
|
|
lexical_var_list ',' lexical_var { $$ = zend_ast_list_add($1, $3); }
|
|
| lexical_var { $$ = zend_ast_create_list(1, ZEND_AST_CLOSURE_USES, $1); }
|
|
;
|
|
|
|
lexical_var:
|
|
T_VARIABLE { $$ = $1; }
|
|
| ampersand T_VARIABLE { $$ = $2; $$->attr = ZEND_BIND_REF; }
|
|
;
|
|
|
|
function_call:
|
|
name argument_list
|
|
{ $$ = zend_ast_create(ZEND_AST_CALL, $1, $2); }
|
|
| T_READONLY argument_list {
|
|
zval zv;
|
|
if (zend_lex_tstring(&zv, $1) == FAILURE) { YYABORT; }
|
|
$$ = zend_ast_create(ZEND_AST_CALL, zend_ast_create_zval(&zv), $2);
|
|
}
|
|
| class_name T_PAAMAYIM_NEKUDOTAYIM member_name argument_list
|
|
{ $$ = zend_ast_create(ZEND_AST_STATIC_CALL, $1, $3, $4); }
|
|
| variable_class_name T_PAAMAYIM_NEKUDOTAYIM member_name argument_list
|
|
{ $$ = zend_ast_create(ZEND_AST_STATIC_CALL, $1, $3, $4); }
|
|
| callable_expr { $<num>$ = CG(zend_lineno); } argument_list {
|
|
$$ = zend_ast_create(ZEND_AST_CALL, $1, $3);
|
|
$$->lineno = $<num>2;
|
|
}
|
|
;
|
|
|
|
class_name:
|
|
T_STATIC
|
|
{ zval zv; ZVAL_INTERNED_STR(&zv, ZSTR_KNOWN(ZEND_STR_STATIC));
|
|
$$ = zend_ast_create_zval_ex(&zv, ZEND_NAME_NOT_FQ); }
|
|
| name { $$ = $1; }
|
|
;
|
|
|
|
class_name_reference:
|
|
class_name { $$ = $1; }
|
|
| new_variable { $$ = $1; }
|
|
| '(' expr ')' { $$ = $2; }
|
|
;
|
|
|
|
exit_expr:
|
|
%empty { $$ = NULL; }
|
|
| '(' optional_expr ')' { $$ = $2; }
|
|
;
|
|
|
|
backticks_expr:
|
|
%empty
|
|
{ $$ = zend_ast_create_zval_from_str(ZSTR_EMPTY_ALLOC()); }
|
|
| T_ENCAPSED_AND_WHITESPACE { $$ = $1; }
|
|
| encaps_list { $$ = $1; }
|
|
;
|
|
|
|
|
|
ctor_arguments:
|
|
%empty { $$ = zend_ast_create_list(0, ZEND_AST_ARG_LIST); }
|
|
| argument_list { $$ = $1; }
|
|
;
|
|
|
|
|
|
dereferenceable_scalar:
|
|
T_ARRAY '(' array_pair_list ')' { $$ = $3; $$->attr = ZEND_ARRAY_SYNTAX_LONG; }
|
|
| '[' array_pair_list ']' { $$ = $2; $$->attr = ZEND_ARRAY_SYNTAX_SHORT; }
|
|
| T_CONSTANT_ENCAPSED_STRING { $$ = $1; }
|
|
| '"' encaps_list '"' { $$ = $2; }
|
|
;
|
|
|
|
scalar:
|
|
T_LNUMBER { $$ = $1; }
|
|
| T_DNUMBER { $$ = $1; }
|
|
| T_START_HEREDOC T_ENCAPSED_AND_WHITESPACE T_END_HEREDOC { $$ = $2; }
|
|
| T_START_HEREDOC T_END_HEREDOC
|
|
{ $$ = zend_ast_create_zval_from_str(ZSTR_EMPTY_ALLOC()); }
|
|
| T_START_HEREDOC encaps_list T_END_HEREDOC { $$ = $2; }
|
|
| dereferenceable_scalar { $$ = $1; }
|
|
| constant { $$ = $1; }
|
|
| class_constant { $$ = $1; }
|
|
;
|
|
|
|
constant:
|
|
name { $$ = zend_ast_create(ZEND_AST_CONST, $1); }
|
|
| T_LINE { $$ = zend_ast_create_ex(ZEND_AST_MAGIC_CONST, T_LINE); }
|
|
| T_FILE { $$ = zend_ast_create_ex(ZEND_AST_MAGIC_CONST, T_FILE); }
|
|
| T_DIR { $$ = zend_ast_create_ex(ZEND_AST_MAGIC_CONST, T_DIR); }
|
|
| T_TRAIT_C { $$ = zend_ast_create_ex(ZEND_AST_MAGIC_CONST, T_TRAIT_C); }
|
|
| T_METHOD_C { $$ = zend_ast_create_ex(ZEND_AST_MAGIC_CONST, T_METHOD_C); }
|
|
| T_FUNC_C { $$ = zend_ast_create_ex(ZEND_AST_MAGIC_CONST, T_FUNC_C); }
|
|
| T_NS_C { $$ = zend_ast_create_ex(ZEND_AST_MAGIC_CONST, T_NS_C); }
|
|
| T_CLASS_C { $$ = zend_ast_create_ex(ZEND_AST_MAGIC_CONST, T_CLASS_C); }
|
|
;
|
|
|
|
class_constant:
|
|
class_name T_PAAMAYIM_NEKUDOTAYIM identifier
|
|
{ $$ = zend_ast_create_class_const_or_name($1, $3); }
|
|
| variable_class_name T_PAAMAYIM_NEKUDOTAYIM identifier
|
|
{ $$ = zend_ast_create_class_const_or_name($1, $3); }
|
|
| class_name T_PAAMAYIM_NEKUDOTAYIM '{' expr '}'
|
|
{ $$ = zend_ast_create(ZEND_AST_CLASS_CONST, $1, $4); }
|
|
| variable_class_name T_PAAMAYIM_NEKUDOTAYIM '{' expr '}'
|
|
{ $$ = zend_ast_create(ZEND_AST_CLASS_CONST, $1, $4); }
|
|
;
|
|
|
|
optional_expr:
|
|
%empty { $$ = NULL; }
|
|
| expr { $$ = $1; }
|
|
;
|
|
|
|
variable_class_name:
|
|
fully_dereferenceable { $$ = $1; }
|
|
;
|
|
|
|
fully_dereferenceable:
|
|
variable { $$ = $1; }
|
|
| '(' expr ')' { $$ = $2; }
|
|
| dereferenceable_scalar { $$ = $1; }
|
|
| class_constant { $$ = $1; }
|
|
;
|
|
|
|
array_object_dereferenceable:
|
|
fully_dereferenceable { $$ = $1; }
|
|
| constant { $$ = $1; }
|
|
;
|
|
|
|
callable_expr:
|
|
callable_variable { $$ = $1; }
|
|
| '(' expr ')' { $$ = $2; }
|
|
| dereferenceable_scalar { $$ = $1; }
|
|
;
|
|
|
|
callable_variable:
|
|
simple_variable
|
|
{ $$ = zend_ast_create(ZEND_AST_VAR, $1); }
|
|
| array_object_dereferenceable '[' optional_expr ']'
|
|
{ $$ = zend_ast_create(ZEND_AST_DIM, $1, $3); }
|
|
| array_object_dereferenceable '{' expr '}'
|
|
{ $$ = zend_ast_create_ex(ZEND_AST_DIM, ZEND_DIM_ALTERNATIVE_SYNTAX, $1, $3); }
|
|
| array_object_dereferenceable T_OBJECT_OPERATOR property_name argument_list
|
|
{ $$ = zend_ast_create(ZEND_AST_METHOD_CALL, $1, $3, $4); }
|
|
| array_object_dereferenceable T_NULLSAFE_OBJECT_OPERATOR property_name argument_list
|
|
{ $$ = zend_ast_create(ZEND_AST_NULLSAFE_METHOD_CALL, $1, $3, $4); }
|
|
| function_call { $$ = $1; }
|
|
;
|
|
|
|
variable:
|
|
callable_variable
|
|
{ $$ = $1; }
|
|
| static_member
|
|
{ $$ = $1; }
|
|
| array_object_dereferenceable T_OBJECT_OPERATOR property_name
|
|
{ $$ = zend_ast_create(ZEND_AST_PROP, $1, $3); }
|
|
| array_object_dereferenceable T_NULLSAFE_OBJECT_OPERATOR property_name
|
|
{ $$ = zend_ast_create(ZEND_AST_NULLSAFE_PROP, $1, $3); }
|
|
;
|
|
|
|
simple_variable:
|
|
T_VARIABLE { $$ = $1; }
|
|
| '$' '{' expr '}' { $$ = $3; }
|
|
| '$' simple_variable { $$ = zend_ast_create(ZEND_AST_VAR, $2); }
|
|
;
|
|
|
|
static_member:
|
|
class_name T_PAAMAYIM_NEKUDOTAYIM simple_variable
|
|
{ $$ = zend_ast_create(ZEND_AST_STATIC_PROP, $1, $3); }
|
|
| variable_class_name T_PAAMAYIM_NEKUDOTAYIM simple_variable
|
|
{ $$ = zend_ast_create(ZEND_AST_STATIC_PROP, $1, $3); }
|
|
;
|
|
|
|
new_variable:
|
|
simple_variable
|
|
{ $$ = zend_ast_create(ZEND_AST_VAR, $1); }
|
|
| new_variable '[' optional_expr ']'
|
|
{ $$ = zend_ast_create(ZEND_AST_DIM, $1, $3); }
|
|
| new_variable '{' expr '}'
|
|
{ $$ = zend_ast_create_ex(ZEND_AST_DIM, ZEND_DIM_ALTERNATIVE_SYNTAX, $1, $3); }
|
|
| new_variable T_OBJECT_OPERATOR property_name
|
|
{ $$ = zend_ast_create(ZEND_AST_PROP, $1, $3); }
|
|
| new_variable T_NULLSAFE_OBJECT_OPERATOR property_name
|
|
{ $$ = zend_ast_create(ZEND_AST_NULLSAFE_PROP, $1, $3); }
|
|
| class_name T_PAAMAYIM_NEKUDOTAYIM simple_variable
|
|
{ $$ = zend_ast_create(ZEND_AST_STATIC_PROP, $1, $3); }
|
|
| new_variable T_PAAMAYIM_NEKUDOTAYIM simple_variable
|
|
{ $$ = zend_ast_create(ZEND_AST_STATIC_PROP, $1, $3); }
|
|
;
|
|
|
|
member_name:
|
|
identifier { $$ = $1; }
|
|
| '{' expr '}' { $$ = $2; }
|
|
| simple_variable { $$ = zend_ast_create(ZEND_AST_VAR, $1); }
|
|
;
|
|
|
|
property_name:
|
|
T_STRING { $$ = $1; }
|
|
| '{' expr '}' { $$ = $2; }
|
|
| simple_variable { $$ = zend_ast_create(ZEND_AST_VAR, $1); }
|
|
;
|
|
|
|
array_pair_list:
|
|
non_empty_array_pair_list
|
|
{ /* allow single trailing comma */ $$ = zend_ast_list_rtrim($1); }
|
|
;
|
|
|
|
possible_array_pair:
|
|
%empty { $$ = NULL; }
|
|
| array_pair { $$ = $1; }
|
|
;
|
|
|
|
non_empty_array_pair_list:
|
|
non_empty_array_pair_list ',' possible_array_pair
|
|
{ $$ = zend_ast_list_add($1, $3); }
|
|
| possible_array_pair
|
|
{ $$ = zend_ast_create_list(1, ZEND_AST_ARRAY, $1); }
|
|
;
|
|
|
|
array_pair:
|
|
expr T_DOUBLE_ARROW expr
|
|
{ $$ = zend_ast_create(ZEND_AST_ARRAY_ELEM, $3, $1); }
|
|
| expr
|
|
{ $$ = zend_ast_create(ZEND_AST_ARRAY_ELEM, $1, NULL); }
|
|
| expr T_DOUBLE_ARROW ampersand variable
|
|
{ $$ = zend_ast_create_ex(ZEND_AST_ARRAY_ELEM, 1, $4, $1); }
|
|
| ampersand variable
|
|
{ $$ = zend_ast_create_ex(ZEND_AST_ARRAY_ELEM, 1, $2, NULL); }
|
|
| T_ELLIPSIS expr
|
|
{ $$ = zend_ast_create(ZEND_AST_UNPACK, $2); }
|
|
| expr T_DOUBLE_ARROW T_LIST '(' array_pair_list ')'
|
|
{ $5->attr = ZEND_ARRAY_SYNTAX_LIST;
|
|
$$ = zend_ast_create(ZEND_AST_ARRAY_ELEM, $5, $1); }
|
|
| T_LIST '(' array_pair_list ')'
|
|
{ $3->attr = ZEND_ARRAY_SYNTAX_LIST;
|
|
$$ = zend_ast_create(ZEND_AST_ARRAY_ELEM, $3, NULL); }
|
|
;
|
|
|
|
encaps_list:
|
|
encaps_list encaps_var
|
|
{ $$ = zend_ast_list_add($1, $2); }
|
|
| encaps_list T_ENCAPSED_AND_WHITESPACE
|
|
{ $$ = zend_ast_list_add($1, $2); }
|
|
| encaps_var
|
|
{ $$ = zend_ast_create_list(1, ZEND_AST_ENCAPS_LIST, $1); }
|
|
| T_ENCAPSED_AND_WHITESPACE encaps_var
|
|
{ $$ = zend_ast_create_list(2, ZEND_AST_ENCAPS_LIST, $1, $2); }
|
|
;
|
|
|
|
encaps_var:
|
|
T_VARIABLE
|
|
{ $$ = zend_ast_create(ZEND_AST_VAR, $1); }
|
|
| T_VARIABLE '[' encaps_var_offset ']'
|
|
{ $$ = zend_ast_create(ZEND_AST_DIM,
|
|
zend_ast_create(ZEND_AST_VAR, $1), $3); }
|
|
| T_VARIABLE T_OBJECT_OPERATOR T_STRING
|
|
{ $$ = zend_ast_create(ZEND_AST_PROP,
|
|
zend_ast_create(ZEND_AST_VAR, $1), $3); }
|
|
| T_VARIABLE T_NULLSAFE_OBJECT_OPERATOR T_STRING
|
|
{ $$ = zend_ast_create(ZEND_AST_NULLSAFE_PROP,
|
|
zend_ast_create(ZEND_AST_VAR, $1), $3); }
|
|
| T_DOLLAR_OPEN_CURLY_BRACES expr '}'
|
|
{ $$ = zend_ast_create_ex(ZEND_AST_VAR, ZEND_ENCAPS_VAR_DOLLAR_CURLY_VAR_VAR, $2); }
|
|
| T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '}'
|
|
{ $$ = zend_ast_create_ex(ZEND_AST_VAR, ZEND_ENCAPS_VAR_DOLLAR_CURLY, $2); }
|
|
| T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '[' expr ']' '}'
|
|
{ $$ = zend_ast_create_ex(ZEND_AST_DIM, ZEND_ENCAPS_VAR_DOLLAR_CURLY,
|
|
zend_ast_create(ZEND_AST_VAR, $2), $4); }
|
|
| T_CURLY_OPEN variable '}' { $$ = $2; }
|
|
;
|
|
|
|
encaps_var_offset:
|
|
T_STRING { $$ = $1; }
|
|
| T_NUM_STRING { $$ = $1; }
|
|
| '-' T_NUM_STRING { $$ = zend_negate_num_string($2); }
|
|
| T_VARIABLE { $$ = zend_ast_create(ZEND_AST_VAR, $1); }
|
|
;
|
|
|
|
|
|
internal_functions_in_yacc:
|
|
T_ISSET '(' isset_variables possible_comma ')' { $$ = $3; }
|
|
| T_EMPTY '(' expr ')' { $$ = zend_ast_create(ZEND_AST_EMPTY, $3); }
|
|
| T_INCLUDE expr
|
|
{ $$ = zend_ast_create_ex(ZEND_AST_INCLUDE_OR_EVAL, ZEND_INCLUDE, $2); }
|
|
| T_INCLUDE_ONCE expr
|
|
{ $$ = zend_ast_create_ex(ZEND_AST_INCLUDE_OR_EVAL, ZEND_INCLUDE_ONCE, $2); }
|
|
| T_EVAL '(' expr ')'
|
|
{ $$ = zend_ast_create_ex(ZEND_AST_INCLUDE_OR_EVAL, ZEND_EVAL, $3); }
|
|
| T_REQUIRE expr
|
|
{ $$ = zend_ast_create_ex(ZEND_AST_INCLUDE_OR_EVAL, ZEND_REQUIRE, $2); }
|
|
| T_REQUIRE_ONCE expr
|
|
{ $$ = zend_ast_create_ex(ZEND_AST_INCLUDE_OR_EVAL, ZEND_REQUIRE_ONCE, $2); }
|
|
;
|
|
|
|
isset_variables:
|
|
isset_variable { $$ = $1; }
|
|
| isset_variables ',' isset_variable
|
|
{ $$ = zend_ast_create(ZEND_AST_AND, $1, $3); }
|
|
;
|
|
|
|
isset_variable:
|
|
expr { $$ = zend_ast_create(ZEND_AST_ISSET, $1); }
|
|
;
|
|
|
|
%%
|
|
|
|
/* Over-ride Bison formatting routine to give better token descriptions.
|
|
Copy to YYRES the contents of YYSTR for use in yyerror.
|
|
YYSTR is taken from yytname, from the %token declaration.
|
|
If YYRES is null, do not copy; instead, return the length of what
|
|
the result would have been. */
|
|
static YYSIZE_T zend_yytnamerr(char *yyres, const char *yystr)
|
|
{
|
|
const char *toktype = yystr;
|
|
size_t toktype_len = strlen(toktype);
|
|
|
|
/* CG(parse_error) states:
|
|
* 0 => yyres = NULL, yystr is the unexpected token
|
|
* 1 => yyres = NULL, yystr is one of the expected tokens
|
|
* 2 => yyres != NULL, yystr is the unexpected token
|
|
* 3 => yyres != NULL, yystr is one of the expected tokens
|
|
*/
|
|
if (yyres && CG(parse_error) < 2) {
|
|
CG(parse_error) = 2;
|
|
}
|
|
|
|
if (CG(parse_error) % 2 == 0) {
|
|
/* The unexpected token */
|
|
char buffer[120];
|
|
const unsigned char *tokcontent, *tokcontent_end;
|
|
size_t tokcontent_len;
|
|
|
|
CG(parse_error)++;
|
|
|
|
if (LANG_SCNG(yy_text)[0] == 0 &&
|
|
LANG_SCNG(yy_leng) == 1 &&
|
|
strcmp(toktype, "\"end of file\"") == 0) {
|
|
if (yyres) {
|
|
yystpcpy(yyres, "end of file");
|
|
}
|
|
return sizeof("end of file")-1;
|
|
}
|
|
|
|
/* Prevent the backslash getting doubled in the output (eugh) */
|
|
if (strcmp(toktype, "\"'\\\\'\"") == 0) {
|
|
if (yyres) {
|
|
yystpcpy(yyres, "token \"\\\"");
|
|
}
|
|
return sizeof("token \"\\\"")-1;
|
|
}
|
|
|
|
/* We used "amp" as a dummy label to avoid a duplicate token literal warning. */
|
|
if (strcmp(toktype, "\"amp\"") == 0) {
|
|
if (yyres) {
|
|
yystpcpy(yyres, "token \"&\"");
|
|
}
|
|
return sizeof("token \"&\"")-1;
|
|
}
|
|
|
|
/* Avoid unreadable """ */
|
|
/* "'" would theoretically be just as bad, but is never currently parsed as a separate token */
|
|
if (strcmp(toktype, "'\"'") == 0) {
|
|
if (yyres) {
|
|
yystpcpy(yyres, "double-quote mark");
|
|
}
|
|
return sizeof("double-quote mark")-1;
|
|
}
|
|
|
|
/* Strip off the outer quote marks */
|
|
if (toktype_len >= 2 && *toktype == '"') {
|
|
toktype++;
|
|
toktype_len -= 2;
|
|
}
|
|
|
|
/* If the token always has one form, the %token line should have a single-quoted name */
|
|
/* The parser rules also include single-character un-named tokens which will be single-quoted here */
|
|
/* We re-format this with double quotes here to ensure everything's consistent */
|
|
if (toktype_len > 0 && *toktype == '\'') {
|
|
if (yyres) {
|
|
snprintf(buffer, sizeof(buffer), "token \"%.*s\"", (int)toktype_len-2, toktype+1);
|
|
yystpcpy(yyres, buffer);
|
|
}
|
|
return toktype_len + sizeof("token ")-1;
|
|
}
|
|
|
|
/* Fetch the content of the last seen token from global lexer state */
|
|
tokcontent = LANG_SCNG(yy_text);
|
|
tokcontent_len = LANG_SCNG(yy_leng);
|
|
|
|
/* For T_BAD_CHARACTER, the content probably won't be a printable char */
|
|
/* Also, "unexpected invalid character" sounds a bit redundant */
|
|
if (tokcontent_len == 1 && strcmp(yystr, "\"invalid character\"") == 0) {
|
|
if (yyres) {
|
|
snprintf(buffer, sizeof(buffer), "character 0x%02hhX", *tokcontent);
|
|
yystpcpy(yyres, buffer);
|
|
}
|
|
return sizeof("character 0x00")-1;
|
|
}
|
|
|
|
/* Truncate at line end to avoid messing up log formats */
|
|
tokcontent_end = memchr(tokcontent, '\n', tokcontent_len);
|
|
if (tokcontent_end != NULL) {
|
|
tokcontent_len = (tokcontent_end - tokcontent);
|
|
}
|
|
|
|
/* Try to be helpful about what kind of string was found, before stripping the quotes */
|
|
if (tokcontent_len > 0 && strcmp(yystr, "\"quoted string\"") == 0) {
|
|
if (*tokcontent == '"') {
|
|
toktype = "double-quoted string";
|
|
toktype_len = sizeof("double-quoted string")-1;
|
|
}
|
|
else if (*tokcontent == '\'') {
|
|
toktype = "single-quoted string";
|
|
toktype_len = sizeof("single-quoted string")-1;
|
|
}
|
|
}
|
|
|
|
/* For quoted strings, strip off another layer of quotes to avoid putting quotes inside quotes */
|
|
if (tokcontent_len > 0 && (*tokcontent == '\'' || *tokcontent=='"')) {
|
|
tokcontent++;
|
|
tokcontent_len--;
|
|
}
|
|
if (tokcontent_len > 0 && (tokcontent[tokcontent_len-1] == '\'' || tokcontent[tokcontent_len-1] == '"')) {
|
|
tokcontent_len--;
|
|
}
|
|
|
|
/* Truncate to 30 characters and add a ... */
|
|
if (tokcontent_len > 30 + sizeof("...")-1) {
|
|
if (yyres) {
|
|
snprintf(buffer, sizeof(buffer), "%.*s \"%.*s...\"", (int)toktype_len, toktype, 30, tokcontent);
|
|
yystpcpy(yyres, buffer);
|
|
}
|
|
return toktype_len + 30 + sizeof(" \"...\"")-1;
|
|
}
|
|
|
|
if (yyres) {
|
|
snprintf(buffer, sizeof(buffer), "%.*s \"%.*s\"", (int)toktype_len, toktype, (int)tokcontent_len, tokcontent);
|
|
yystpcpy(yyres, buffer);
|
|
}
|
|
return toktype_len + tokcontent_len + sizeof(" \"\"")-1;
|
|
}
|
|
|
|
/* One of the expected tokens */
|
|
|
|
/* Prevent the backslash getting doubled in the output (eugh) */
|
|
if (strcmp(toktype, "\"'\\\\'\"") == 0) {
|
|
if (yyres) {
|
|
yystpcpy(yyres, "\"\\\"");
|
|
}
|
|
return sizeof("\"\\\"")-1;
|
|
}
|
|
|
|
/* Strip off the outer quote marks */
|
|
if (toktype_len >= 2 && *toktype == '"') {
|
|
toktype++;
|
|
toktype_len -= 2;
|
|
}
|
|
|
|
if (yyres) {
|
|
YYSIZE_T yyn = 0;
|
|
|
|
for (; yyn < toktype_len; ++yyn) {
|
|
/* Replace single quotes with double for consistency */
|
|
if (toktype[yyn] == '\'') {
|
|
yyres[yyn] = '"';
|
|
}
|
|
else {
|
|
yyres[yyn] = toktype[yyn];
|
|
}
|
|
}
|
|
yyres[toktype_len] = '\0';
|
|
}
|
|
|
|
return toktype_len;
|
|
}
|