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- Rearrange grammar to allow dereferencing of objects returned from

- functions. It still crashes though.
experimental/ZendEngine2
Andi Gutmans 25 years ago
parent
commit
7c749c1897
  1. 45
      Zend/zend_language_parser.y

45
Zend/zend_language_parser.y

@ -438,7 +438,6 @@ expr_without_variable:
T_LIST '(' { zend_do_list_init(TSRMLS_C); } assignment_list ')' '=' expr { zend_do_list_end(&$$, &$7 TSRMLS_CC); }
| cvar '=' expr { zend_do_end_variable_parse(BP_VAR_W, 0 TSRMLS_CC); zend_do_assign(&$$, &$1, &$3 TSRMLS_CC); }
| cvar '=' '&' w_cvar { zend_do_end_variable_parse(BP_VAR_W, 0 TSRMLS_CC); zend_do_assign_ref(&$$, &$1, &$4 TSRMLS_CC); }
| cvar '=' '&' function_call { zend_do_end_variable_parse(BP_VAR_W, 0 TSRMLS_CC); zend_do_assign_ref(&$$, &$1, &$4 TSRMLS_CC); }
| cvar '=' '&' T_NEW new_class_entry { zend_do_extended_fcall_begin(TSRMLS_C); zend_do_begin_new_object(&$4, &$5 TSRMLS_CC); } ctor_arguments { zend_do_end_new_object(&$3, &$4, &$7 TSRMLS_CC); zend_do_extended_fcall_end(TSRMLS_C); zend_do_end_variable_parse(BP_VAR_W, 0 TSRMLS_CC); zend_do_assign_ref(&$$, &$1, &$3 TSRMLS_CC); }
| T_NEW new_class_entry { zend_do_extended_fcall_begin(TSRMLS_C); zend_do_begin_new_object(&$1, &$2 TSRMLS_CC); } ctor_arguments { zend_do_end_new_object(&$$, &$1, &$4 TSRMLS_CC); zend_do_extended_fcall_end(TSRMLS_C);}
| cvar T_PLUS_EQUAL expr { zend_do_end_variable_parse(BP_VAR_RW, 0 TSRMLS_CC); zend_do_binary_assign_op(ZEND_ASSIGN_ADD, &$$, &$1, &$3 TSRMLS_CC); }
@ -488,7 +487,6 @@ expr_without_variable:
| expr '?' { zend_do_begin_qm_op(&$1, &$2 TSRMLS_CC); }
expr ':' { zend_do_qm_true(&$4, &$2, &$5 TSRMLS_CC); }
expr { zend_do_qm_false(&$$, &$7, &$2, &$5 TSRMLS_CC); }
| function_call { $$ = $1; }
| internal_functions_in_yacc { $$ = $1; }
| T_INT_CAST expr { zend_do_cast(&$$, &$2, IS_LONG TSRMLS_CC); }
| T_DOUBLE_CAST expr { zend_do_cast(&$$, &$2, IS_DOUBLE TSRMLS_CC); }
@ -605,7 +603,7 @@ non_empty_static_array_pair_list:
expr:
r_cvar { $$ = $1; }
| expr_without_variable { $$ = $1; }
| expr_without_variable { $$ = $1; }
;
@ -624,35 +622,51 @@ rw_cvar:
;
r_cvar_without_static_member:
variable { zend_do_end_variable_parse(BP_VAR_R, 0 TSRMLS_CC); $$ = $1; }
cvar_without_objects { zend_do_end_variable_parse(BP_VAR_R, 0 TSRMLS_CC); $$ = $1; }
;
cvar:
variable { $$ = $1; }
| static_member {$$ = $1; }
base_cvar_without_objects T_OBJECT_OPERATOR { zend_do_push_object(&$1 TSRMLS_CC); } object_property { zend_do_push_object(&$4 TSRMLS_CC); } method_or_not
variable_properties { zend_do_pop_object(&$$ TSRMLS_CC); }
| base_cvar_without_objects { $$ = $1; }
;
static_member:
parse_class_entry variable { $$ = $2; zend_do_fetch_static_member(&$1 TSRMLS_CC); }
;
variable:
variable_property '(' { zend_do_begin_method_call(NULL, &$1 TSRMLS_CC); }
function_call_parameter_list ')' { zend_do_end_function_call(&$1, &$$, &$4, 0, 1 TSRMLS_CC); zend_do_extended_fcall_end(TSRMLS_C);}
| variable_property { $$ = $1; }
| cvar_without_objects { $$ = $1; }
variable_properties:
variable_properties variable_property
| /* empty */
;
variable_property:
variable T_OBJECT_OPERATOR { zend_do_push_object(&$1 TSRMLS_CC); } object_property { $$ = $4; }
T_OBJECT_OPERATOR object_property { zend_do_push_object(&$2 TSRMLS_CC); } method_or_not
;
method_or_not:
'(' { zend_do_pop_object(&$1 TSRMLS_CC); zend_do_begin_method_call(NULL, &$1 TSRMLS_CC); }
function_call_parameter_list ')'
{ zend_do_end_function_call(&$1, &$$, &$3, 0, 1 TSRMLS_CC); zend_do_extended_fcall_end(TSRMLS_C);
zend_do_push_object(&$$ TSRMLS_CC); }
| /* empty */
;
cvar_without_objects:
reference_variable { $$ = $1; }
| simple_indirect_reference reference_variable { zend_do_indirect_references(&$$, &$1, &$2 TSRMLS_CC); }
;
static_member:
parse_class_entry cvar_without_objects { $$ = $2; zend_do_fetch_static_member(&$1 TSRMLS_CC); }
;
base_cvar_without_objects:
reference_variable { $$ = $1; }
| simple_indirect_reference reference_variable { zend_do_indirect_references(&$$, &$1, &$2 TSRMLS_CC); }
| static_member { $$ = $1; }
| function_call { zend_do_begin_variable_parse(TSRMLS_C); $$ = $1; }
;
reference_variable:
reference_variable '[' dim_offset ']' { fetch_array_dim(&$$, &$1, &$3 TSRMLS_CC); }
@ -688,7 +702,6 @@ variable_name:
| '{' expr '}' { $$ = $2; }
;
simple_indirect_reference:
'$' { $$.u.constant.value.lval = 1; }
| simple_indirect_reference '$' { $$.u.constant.value.lval++; }

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