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- More rules translated
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@felipensp
felipensp committed Jul 8, 2010
1 parent 86771c2 commit 8ba373e
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Showing 5 changed files with 3,411 additions and 3,231 deletions.
2 changes: 2 additions & 0 deletions Zend/zend_compile.h
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Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,8 @@ typedef struct _znode { /* used only during compilation */
zend_uint EA; /* extended attributes */
} znode;

typedef znode znode_array[5];

typedef struct _zend_execute_data zend_execute_data;

#define ZEND_OPCODE_HANDLER_ARGS zend_execute_data *execute_data TSRMLS_DC
Expand Down
198 changes: 167 additions & 31 deletions Zend/zend_language_parser.y
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Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,11 @@

%extra_argument {void ***tsrm_ls}

%type function_call_ns_i {znode_array}
%type function_call_ns_ii {znode_array}
%type function_call_ns_iii {znode_array}
%type function_call_cls_i {znode_array}
%type additional_catch_i {znode_array}

/* TOKENS TRANSLATION:
Expand All @@ -71,6 +76,7 @@
^ => T_BW_XOR
@ => T_AT
" => T_QUOTE
! =>
*/

Expand All @@ -84,15 +90,15 @@
%left QUESTION_MARK COLON.
%left BOOLEAN_OR.
%left BOOLEAN_AND.
%left PIPE.
%left HAT.
%left BW_OR.
%left BW_XOR.
%left AMPERSAND.
%nonassoc IS_EQUAL IS_NOT_EQUAL IS_IDENTICAL IS_NOT_IDENTICAL.
%nonassoc IS_SMALLER IS_SMALLER_OR_EQUAL IS_GREATER IS_GREATER_OR_EQUAL.
%left SL SR.
%left PLUS MINUS DOT.
%left TIMES SLASH PERCENT.
%right EXCLAMATION.
%left MULT DIV MOD.
%right BOOL_NOT.
%nonassoc INSTANCEOF.
%right TILDA INC DEC INT_CAST NUMERIC_CAST SCALAR_CAST DOUBLE_CAST STRING_CAST ARRAY_CAST OBJECT_CAST BOOL_CAST UNSET_CAST AT.
%right RBRACKET.
Expand Down Expand Up @@ -280,9 +286,9 @@ if_alt_cond(A) ::= IF LPAREN expr(B) RPAREN(C) COLON. { zend_do_if_cond(&B, &C
if_alt_cond_then ::= if_alt_cond(B) inner_statement_list. { zend_do_if_after_statement(&B, 1 TSRMLS_CC); }

unticked_statement ::= LBRACE inner_statement_list RBRACE.
//unticked_statement ::= if_cond_then elseif_list else_single. { zend_do_if_end(TSRMLS_C); }
unticked_statement ::= if_cond_then elseif_list else_single. { zend_do_if_end(TSRMLS_C); }

//unticked_statement ::= if_alt_cond_then elseif_alt_list else_alt_single ENDIF SEMICOLON. { zend_do_if_end(TSRMLS_C); }
unticked_statement ::= if_alt_cond_then elseif_alt_list else_alt_single ENDIF SEMICOLON. { zend_do_if_end(TSRMLS_C); }

while_begin ::= WHILE(B) LPAREN. { B.u.op.opline_num = get_next_op_number(CG(active_op_array)); }

Expand Down Expand Up @@ -342,24 +348,30 @@ unticked_statement ::= try LBRACE inner_statement_list RBRACE.
unticked_statement ::= THROW expr(B) SEMICOLON. { zend_do_throw(&B TSRMLS_CC); }
unticked_statement ::= GOTO STRING(B) SEMICOLON. { zend_do_goto(&B TSRMLS_CC); }

//
//
//additional_catches:
// non_empty_additional_catches { $$ = $1; }
// | /* empty */ { $$.u.op.opline_num = -1; }
//;
//

additional_catches(A) ::= . { A.u.op.opline_num = -1; }
additional_catches(A) ::= non_empty_additional_catches(B). { A = B; }

//non_empty_additional_catches:
// additional_catch { $$ = $1; }
// | non_empty_additional_catches additional_catch { $$ = $2; }
//;
//
//

non_empty_additional_catches(A) ::= additional_catch(B). { A = B; }
non_empty_additional_catches(A) ::= non_empty_additional_catches additional_catch(B). { A = B; }

//additional_catch:
// CATCH LPAREN fully_qualified_class_name { $$.u.op.opline_num = get_next_op_number(CG(active_op_array)); } VARIABLE RPAREN { zend_do_begin_catch(&$1, &$3, &$5, NULL TSRMLS_CC); } LBRACE inner_statement_list RBRACE { zend_do_end_catch(&$1 TSRMLS_CC); }
//;
//
//

additional_catch_i(A) ::= CATCH(B) LPAREN fully_qualified_class_name(C). { A[0] = B; A[1] = C; A[0].u.op.opline_num = get_next_op_number(CG(active_op_array)); }
additional_catch_ii(A) ::= additional_catch_i(B) VARIABLE(C) RPAREN. { zend_do_begin_catch(&B[0], &B[1], &C, NULL TSRMLS_CC); A = B[0]; }
additional_catch ::= additional_catch_ii(B) LBRACE inner_statement_list RBRACE. { zend_do_end_catch(&B TSRMLS_CC); }

//unset_variables:
// unset_variable
// | unset_variables COMMA unset_variable
Expand Down Expand Up @@ -543,13 +555,22 @@ while_statement ::= COLON inner_statement_list ENDWHILE SEMICOLON.
// /* empty */
// | elseif_list ELSEIF LPAREN expr RPAREN { zend_do_if_cond(&$4, &$5 TSRMLS_CC); } statement { zend_do_if_after_statement(&$5, 0 TSRMLS_CC); }
//;
//
//

elseif_list_i(A) ::= elseif_list ELSEIF LPAREN expr(B) RPAREN(C). { zend_do_if_cond(&B, &C TSRMLS_CC); A = C; }

elseif_list ::= .
elseif_list ::= elseif_list_i(B) statement. { zend_do_if_after_statement(&B, 0 TSRMLS_CC); }

//elseif_alt_list:
// /* empty */
// | elseif_alt_list ELSEIF LPAREN expr RPAREN COLON { zend_do_if_cond(&$4, &$5 TSRMLS_CC); } inner_statement_list { zend_do_if_after_statement(&$5, 0 TSRMLS_CC); }
//;

elseif_alt_list_i(A) ::= elseif_alt_list ELSEIF LPAREN expr(B) RPAREN(C) COLON. { zend_do_if_cond(&B, &C TSRMLS_CC); A = C; }

elseif_alt_list ::= .
elseif_alt_list ::= elseif_alt_list_i(B) inner_statement_list. { zend_do_if_after_statement(&B, 0 TSRMLS_CC); }

//else_single:
// /* empty */
// | ELSE statement
Expand Down Expand Up @@ -980,6 +1001,17 @@ expr_without_variable(A) ::= expr(B) MINUS expr(C). { zend_do_binary_op(ZEND_SU
expr_without_variable(A) ::= expr(B) MULT expr(C). { zend_do_binary_op(ZEND_MUL, &A, &B, &C TSRMLS_CC); }
expr_without_variable(A) ::= expr(B) DIV expr(C). { zend_do_binary_op(ZEND_DIV, &A, &B, &C TSRMLS_CC); }
expr_without_variable(A) ::= expr(B) MOD expr(C). { zend_do_binary_op(ZEND_MOD, &A, &B, &C TSRMLS_CC); }
expr_without_variable(A) ::= BOOL_NOT expr(B). { zend_do_unary_op(ZEND_BOOL_NOT, &A, &B TSRMLS_CC); }
expr_without_variable(A) ::= BW_NOT expr(B). { zend_do_unary_op(ZEND_BW_NOT, &A, &B TSRMLS_CC); }
expr_without_variable(A) ::= expr(B) IS_IDENTICAL expr(C). { zend_do_binary_op(ZEND_IS_IDENTICAL, &A, &B, &C TSRMLS_CC); }
expr_without_variable(A) ::= expr(B) IS_NOT_IDENTICAL expr(C). { zend_do_binary_op(ZEND_IS_NOT_IDENTICAL, &A, &B, &C TSRMLS_CC); }
expr_without_variable(A) ::= expr(B) IS_EQUAL expr(C). { zend_do_binary_op(ZEND_IS_EQUAL, &A, &B, &C TSRMLS_CC); }
expr_without_variable(A) ::= expr(B) IS_NOT_EQUAL expr(C). { zend_do_binary_op(ZEND_IS_NOT_EQUAL, &A, &B, &C TSRMLS_CC); }
expr_without_variable(A) ::= expr(B) IS_SMALLER expr(C). { zend_do_binary_op(ZEND_IS_SMALLER, &A, &B, &C TSRMLS_CC); }
expr_without_variable(A) ::= expr(B) IS_SMALLER_OR_EQUAL expr(C). { zend_do_binary_op(ZEND_IS_SMALLER_OR_EQUAL, &A, &B, &C TSRMLS_CC); }
expr_without_variable(A) ::= expr(B) IS_GREATER expr(C). { zend_do_binary_op(ZEND_IS_SMALLER, &A, &C, &B TSRMLS_CC); }
expr_without_variable(A) ::= expr(B) IS_GREATER_OR_EQUAL expr(C). { zend_do_binary_op(ZEND_IS_SMALLER_OR_EQUAL, &A, &C, &B TSRMLS_CC); }
expr_without_variable(A) ::= expr(B) INSTANCEOF class_name_reference(C). { zend_do_instanceof(&A, &B, &C, 0 TSRMLS_CC); }
expr_without_variable(A) ::= LPAREN expr(B) RPAREN. { A = B; }
expr_without_variable(A) ::= INT_CAST expr(B). { zend_do_cast(&A, &B, IS_LONG TSRMLS_CC); }
expr_without_variable(A) ::= DOUBLE_CAST expr(B). { zend_do_cast(&A, &B, IS_DOUBLE TSRMLS_CC); }
Expand All @@ -994,6 +1026,8 @@ expr_without_variable(A) ::= EXIT exit_expr(B). { zend_do_exit(&A, &B TSRMLS_CC)
expr_without_variable(A) ::= silent(B) expr(C). { zend_do_end_silence(&B TSRMLS_CC); A = C; }
expr_without_variable(A) ::= ARRAY LPAREN array_pair_list(B) RPAREN. { A = B; }
expr_without_variable(A) ::= scalar(B). { A = B; }
expr_without_variable(A) ::= BACKQUOTE backticks_expr(B) BACKQUOTE. { zend_do_shell_exec(&A, &B TSRMLS_CC); }
expr_without_variable(A) ::= PRINT expr(B). { zend_do_print(&A, &B TSRMLS_CC); }

silent(A) ::= AT(B). { zend_do_begin_silence(&B TSRMLS_CC); A = B; }

Expand Down Expand Up @@ -1049,7 +1083,61 @@ lexical_var_list ::= BW_AND VARIABLE(B). { zend_do_fetch_lexical_variable(&
// function_call_parameter_list RPAREN
// { zend_do_end_function_call(&$1, &$$, &$4, 0, 1 TSRMLS_CC); zend_do_extended_fcall_end(TSRMLS_C);}
//;
//

function_call_ns_i(A) ::= namespace_name(B) LPAREN(C). { C.u.op.opline_num = zend_do_begin_function_call(&B, 1 TSRMLS_CC); A[0] = B; A[1] = C; }

function_call_ns_ii(A) ::= NAMESPACE(B) NS_SEPARATOR namespace_name(C) LPAREN(D). {
B.op_type = IS_CONST;
ZVAL_EMPTY_STRING(&B.u.constant);
zend_do_build_namespace_name(&B, &B, &C TSRMLS_CC);
D.u.op.opline_num = zend_do_begin_function_call(&B, 0 TSRMLS_CC);
A[0] = B;
A[1] = D;
}

function_call_ns_iii(A) ::= NS_SEPARATOR namespace_name(B) LPAREN(C). { C.u.op.opline_num = zend_do_begin_function_call(&B, 0 TSRMLS_CC); A[0] = B; A[1] = C; }

function_call_cls_i(A) ::= class_name(B) PAAMAYIM_NEKUDOTAYIM STRING(C) LPAREN(D). { D.u.op.opline_num = zend_do_begin_class_member_function_call(&B, &C TSRMLS_CC); A[0] = C; A[1] = D; }

function_call_cls_ii ::= class_name(B) PAAMAYIM_NEKUDOTAYIM variable_without_objects(C) LPAREN. { zend_do_end_variable_parse(&C, BP_VAR_R, 0 TSRMLS_CC); zend_do_begin_class_member_function_call(&B, &C TSRMLS_CC); }

function_call_var_i ::= variable_class_name(B) PAAMAYIM_NEKUDOTAYIM STRING(C) LPAREN. { zend_do_begin_class_member_function_call(&B, &C TSRMLS_CC); }

function_call_var_ii ::= variable_class_name(B) PAAMAYIM_NEKUDOTAYIM variable_without_objects(C) LPAREN. {
zend_do_end_variable_parse(&C, BP_VAR_R, 0 TSRMLS_CC);
zend_do_begin_class_member_function_call(&B, &C TSRMLS_CC);
}

function_call_var_iii(A) ::= variable_without_objects(B) LPAREN. { zend_do_end_variable_parse(&B, BP_VAR_R, 0 TSRMLS_CC); zend_do_begin_dynamic_function_call(&B, 0 TSRMLS_CC); A = B; }

function_call(A) ::= function_call_ns_i(B) function_call_parameter_list(C) RPAREN. {
zend_do_end_function_call(&B[0], &A, &C, 0, B[1].u.op.opline_num TSRMLS_CC);
zend_do_extended_fcall_end(TSRMLS_C);
}

function_call(A) ::= function_call_ns_ii(B) function_call_parameter_list(C) RPAREN. {
zend_do_end_function_call(&B[0], &A, &C, 0, B[1].u.op.opline_num TSRMLS_CC);
zend_do_extended_fcall_end(TSRMLS_C);
}

function_call(A) ::= function_call_ns_iii(B) function_call_parameter_list(C) RPAREN. {
zend_do_end_function_call(&B[0], &A, &C, 0, B[1].u.op.opline_num TSRMLS_CC);
zend_do_extended_fcall_end(TSRMLS_C);
}

function_call(A) ::= function_call_cls_i(B) function_call_parameter_list(C) RPAREN. {
zend_do_end_function_call(B[1].u.op.opline_num?NULL:&B[0], &A, &C, B[1].u.op.opline_num, B[1].u.op.opline_num TSRMLS_CC);
zend_do_extended_fcall_end(TSRMLS_C);
}

function_call(A) ::= function_call_cls_ii function_call_parameter_list(C) RPAREN. { zend_do_end_function_call(NULL, &A, &C, 1, 1 TSRMLS_CC); zend_do_extended_fcall_end(TSRMLS_C);}

function_call(A) ::= function_call_var_i function_call_parameter_list(B) RPAREN. { zend_do_end_function_call(NULL, &A, &B, 1, 1 TSRMLS_CC); zend_do_extended_fcall_end(TSRMLS_C);}

function_call(A) ::= function_call_var_ii function_call_parameter_list(B) RPAREN. { zend_do_end_function_call(NULL, &A, &B, 1, 1 TSRMLS_CC); zend_do_extended_fcall_end(TSRMLS_C);}

function_call(A) ::= function_call_var_iii(B) function_call_parameter_list(C) RPAREN. { zend_do_end_function_call(&B, &A, &C, 0, 1 TSRMLS_CC); zend_do_extended_fcall_end(TSRMLS_C);}

//class_name:
// STATIC { $$.op_type = IS_CONST; ZVAL_STRINGL(&$$.u.constant, "static", sizeof("static")-1, 1);}
// | namespace_name { $$ = $1; }
Expand Down Expand Up @@ -1086,8 +1174,17 @@ class_name_reference(A) ::= dynamic_class_name_reference(B). { zend_do_end_varia
// { zend_do_pop_object(&$$ TSRMLS_CC); $$.EA = ZEND_PARSED_MEMBER; }
// | base_variable { $$ = $1; }
//;
//
//

dynamic_class_name_reference_i ::= base_variable(B) OBJECT_OPERATOR. { zend_do_push_object(&B TSRMLS_CC); }

dynamic_class_name_reference_ii ::= dynamic_class_name_reference_i object_property(B). { zend_do_push_object(&B TSRMLS_CC); }

dynamic_class_name_reference(A) ::= dynamic_class_name_reference_ii dynamic_class_name_variable_properties. {
zend_do_pop_object(&A TSRMLS_CC);
A.EA = ZEND_PARSED_MEMBER;
}
dynamic_class_name_reference(A) ::= base_variable(B). { A = B; }

//dynamic_class_name_variable_properties:
// dynamic_class_name_variable_properties dynamic_class_name_variable_property
// | /* empty */
Expand Down Expand Up @@ -1189,7 +1286,6 @@ scalar(A) ::= common_scalar(B). { A = B; }
scalar(A) ::= QUOTE encaps_list(B) QUOTE. { A = B; }
scalar(A) ::= START_HEREDOC(B) encaps_list(C) END_HEREDOC. { A = C; CG(heredoc) = Z_STRVAL(B.u.constant); CG(heredoc_len) = Z_STRLEN(B.u.constant); }


//static_array_pair_list:
// /* empty */ { $$.op_type = IS_CONST; INIT_PZVAL(&$$.u.constant); array_init(&$$.u.constant); }
// | non_empty_static_array_pair_list possible_comma { $$ = $1; }
Expand Down Expand Up @@ -1254,6 +1350,11 @@ rw_variable(A) ::= variable(B). { zend_do_end_variable_parse(&B, BP_VAR_RW, 0 TS
// | base_variable_with_function_calls { $$ = $1; }
//;

variable_i(A) ::= base_variable_with_function_calls(B) OBJECT_OPERATOR. { zend_do_push_object(&B TSRMLS_CC); A = B; }

variable_ii ::= object_property(B). { zend_do_push_object(&B TSRMLS_CC); }

variable(A) ::= variable_i(B) variable_ii method_or_not(C) variable_properties(D). { zend_do_pop_object(&A TSRMLS_CC); A.EA = B.EA | (D.EA ? D.EA : C.EA); }
variable(A) ::= base_variable_with_function_calls(B). { A = B; }

//variable_properties:
Expand Down Expand Up @@ -1285,7 +1386,10 @@ array_method_dereference(A) ::= method(B) LBRACKET dim_offset(C) RBRACKET. { fet
// function_call_parameter_list RPAREN
// { zend_do_end_function_call(&$1, &$$, &$3, 1, 1 TSRMLS_CC); zend_do_extended_fcall_end(TSRMLS_C); }
//;
//

method_i(A) ::= LPAREN(B). { zend_do_pop_object(&B TSRMLS_CC); zend_do_begin_method_call(&B TSRMLS_CC); A = B; }
method(A) ::= method_i(B) function_call_parameter_list(C) RPAREN. { zend_do_end_function_call(&B, &A, &C, 1, 1 TSRMLS_CC); zend_do_extended_fcall_end(TSRMLS_C); }

//method_or_not:
// method { $$ = $1; zend_do_push_object(&$$ TSRMLS_CC); $$.EA = ZEND_PARSED_METHOD_CALL; }
// | array_method_dereference { $$ = $1; zend_do_push_object(&$$ TSRMLS_CC); }
Expand Down Expand Up @@ -1382,18 +1486,37 @@ dim_offset(A) ::= expr(B). { A = B; }
// object_dim_list { $$ = $1; }
// | variable_without_objects { zend_do_end_variable_parse(&$1, BP_VAR_R, 0 TSRMLS_CC); } { znode tmp_znode; zend_do_pop_object(&tmp_znode TSRMLS_CC); zend_do_fetch_property(&$$, &tmp_znode, &$1 TSRMLS_CC);}
//;
//

object_property(A) ::= object_dim_list(B). { A = B; }
object_property(A) ::= variable_without_objects(B). {
znode tmp_znode;
zend_do_end_variable_parse(&B, BP_VAR_R, 0 TSRMLS_CC);
zend_do_pop_object(&tmp_znode TSRMLS_CC);
zend_do_fetch_property(&A, &tmp_znode, &B TSRMLS_CC);
}

//object_dim_list:
// object_dim_list '[' dim_offset ']' { fetch_array_dim(&$$, &$1, &$3 TSRMLS_CC); }
// | object_dim_list LBRACE expr RBRACE { fetch_string_offset(&$$, &$1, &$3 TSRMLS_CC); }
// | variable_name { znode tmp_znode; zend_do_pop_object(&tmp_znode TSRMLS_CC); zend_do_fetch_property(&$$, &tmp_znode, &$1 TSRMLS_CC);}
//;
//

object_dim_list(A) ::= object_dim_list(B) LBRACKET dim_offset(C) RBRACKET. { fetch_array_dim(&A, &B, &C TSRMLS_CC); }
object_dim_list(A) ::= object_dim_list(B) LBRACE expr(C) RBRACE. { fetch_string_offset(&A, &B, &C TSRMLS_CC); }
object_dim_list(A) ::= variable_name(B). {
znode tmp_znode;
zend_do_pop_object(&tmp_znode TSRMLS_CC);
zend_do_fetch_property(&A, &tmp_znode, &B TSRMLS_CC);
}

//variable_name:
// STRING { $$ = $1; }
// | LBRACE expr RBRACE { $$ = $2; }
//;
//

variable_name(A) ::= STRING(B). { A = B; }
variable_name(A) ::= LBRACE expr(B) RBRACE. { A = B; }

//simple_indirect_reference:
// '$' { Z_LVAL($$.u.constant) = 1; }
// | simple_indirect_reference '$' { Z_LVAL($$.u.constant)++; }
Expand Down Expand Up @@ -1444,16 +1567,18 @@ non_empty_array_pair_list(A) ::= non_empty_array_pair_list COMMA BW_AND w_variab
non_empty_array_pair_list(A) ::= expr(B) DOUBLE_ARROW BW_AND w_variable(C). { zend_do_init_array(&A, &C, &B, 1 TSRMLS_CC); }
non_empty_array_pair_list(A) ::= BW_AND w_variable(B). { zend_do_init_array(&A, &B, NULL, 1 TSRMLS_CC); }

//
//encaps_list:
// encaps_list encaps_var { zend_do_end_variable_parse(&$2, BP_VAR_R, 0 TSRMLS_CC); zend_do_add_variable(&$$, &$1, &$2 TSRMLS_CC); }
// | encaps_list ENCAPSED_AND_WHITESPACE { zend_do_add_string(&$$, &$1, &$2 TSRMLS_CC); }
// | encaps_var { zend_do_end_variable_parse(&$1, BP_VAR_R, 0 TSRMLS_CC); zend_do_add_variable(&$$, NULL, &$1 TSRMLS_CC); }
// | ENCAPSED_AND_WHITESPACE encaps_var { zend_do_add_string(&$$, NULL, &$1 TSRMLS_CC); zend_do_end_variable_parse(&$2, BP_VAR_R, 0 TSRMLS_CC); zend_do_add_variable(&$$, &$$, &$2 TSRMLS_CC); }
//;
//
//
//

encaps_list(A) ::= encaps_list(B) encaps_var(C). { zend_do_end_variable_parse(&B, BP_VAR_R, 0 TSRMLS_CC); zend_do_add_variable(&A, &B, &C TSRMLS_CC); }
encaps_list(A) ::= encaps_list(B) ENCAPSED_AND_WHITESPACE(C). { zend_do_add_string(&A, &B, &C TSRMLS_CC); }
encaps_list(A) ::= encaps_var(B). { zend_do_end_variable_parse(&B, BP_VAR_R, 0 TSRMLS_CC); zend_do_add_variable(&A, NULL, &B TSRMLS_CC); }
encaps_list(A) ::= ENCAPSED_AND_WHITESPACE(B) encaps_var(C). { zend_do_add_string(&A, NULL, &B TSRMLS_CC); zend_do_end_variable_parse(&C, BP_VAR_R, 0 TSRMLS_CC); zend_do_add_variable(&A, &A, &C TSRMLS_CC); }

//encaps_var:
// VARIABLE { zend_do_begin_variable_parse(TSRMLS_C); fetch_simple_variable(&$$, &$1, 1 TSRMLS_CC); }
// | VARIABLE '[' { zend_do_begin_variable_parse(TSRMLS_C); } encaps_var_offset ']' { fetch_array_begin(&$$, &$1, &$4 TSRMLS_CC); }
Expand All @@ -1462,15 +1587,26 @@ non_empty_array_pair_list(A) ::= BW_AND w_variable(B). { zend_do_init_array(&A,
// | DOLLAR_OPEN_CURLY_BRACES STRING_VARNAME '[' expr ']' RBRACE { zend_do_begin_variable_parse(TSRMLS_C); fetch_array_begin(&$$, &$2, &$4 TSRMLS_CC); }
// | CURLY_OPEN variable RBRACE { $$ = $2; }
//;
//
//

encaps_var_i(A) ::= VARIABLE(B) LBRACKET. { zend_do_begin_variable_parse(TSRMLS_C); A = B; }

encaps_var(A) ::= VARIABLE(B). { zend_do_begin_variable_parse(TSRMLS_C); fetch_simple_variable(&A, &B, 1 TSRMLS_CC); }
encaps_var(A) ::= encaps_var_i(B) encaps_var_offset(C) RBRACKET. { fetch_array_begin(&A, &B, &C TSRMLS_CC); }
encaps_var(A) ::= VARIABLE(B) OBJECT_OPERATOR(C) STRING(D). { zend_do_begin_variable_parse(TSRMLS_C); fetch_simple_variable(&C, &B, 1 TSRMLS_CC); zend_do_fetch_property(&A, &C, &D TSRMLS_CC); }
encaps_var(A) ::= DOLLAR_OPEN_CURLY_BRACES expr(B) RBRACE. { zend_do_begin_variable_parse(TSRMLS_C); fetch_simple_variable(&A, &B, 1 TSRMLS_CC); }
encaps_var(A) ::= DOLLAR_OPEN_CURLY_BRACES STRING_VARNAME(B) LBRACKET expr(C) RBRACKET RBRACE. { zend_do_begin_variable_parse(TSRMLS_C); fetch_array_begin(&A, &B, &C TSRMLS_CC); }
encaps_var(A) ::= CURLY_OPEN variable(B) RBRACE. { A = B; }

//encaps_var_offset:
// STRING { $$ = $1; }
// | NUM_STRING { $$ = $1; }
// | VARIABLE { fetch_simple_variable(&$$, &$1, 1 TSRMLS_CC); }
//;
//
//

encaps_var_offset(A) ::= STRING(B). { A = B; }
encaps_var_offset(A) ::= NUM_STRING(B). { A = B; }
encaps_var_offset(A) ::= VARIABLE(B). { fetch_simple_variable(&A, &B, 1 TSRMLS_CC); }

//internal_functions_in_yacc:
// ISSET LPAREN isset_variables RPAREN { $$ = $3; }
// | EMPTY LPAREN variable RPAREN { zend_do_isset_or_isempty(ZEND_ISEMPTY, &$$, &$3 TSRMLS_CC); }
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