jyapayne/swig
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Rewrote part of the grammar dealing with Doxygen comments for enums.

Browse source 
This brings down the number of yacc shift/reduce conflicts from 16 to 8 and
eliminates all 4 of the previously existing reduce/reduce conflicts.
This commit is contained in:
Vadim Zeitlin 2015-07-25 16:58:07 +02:00
commit bc2ee1b130
1 changed files with 62 additions and 35 deletions
Download patch file Download diff file Expand all files Collapse all files

77
Source/CParse/parser.y
View file

@ -1459,7 +1459,7 @@ static void mark_nodes_as_extend(Node *n) {
/* C declarations */ /* C declarations */
%type <node> c_declaration c_decl c_decl_tail c_enum_key c_enum_inherit c_enum_decl c_enum_forward_decl c_constructor_decl; %type <node> c_declaration c_decl c_decl_tail c_enum_key c_enum_inherit c_enum_decl c_enum_forward_decl c_constructor_decl;
%type <node> enumlist edecl; %type <node> enumlist enumlist_tail enumlist_item edecl_with_dox edecl;
/* C++ declarations */ /* C++ declarations */
%type <node> cpp_declaration cpp_class_decl cpp_forward_class_decl cpp_template_decl cpp_alternate_rettype; %type <node> cpp_declaration cpp_class_decl cpp_forward_class_decl cpp_template_decl cpp_alternate_rettype;
@ -1509,7 +1509,6 @@ static void mark_nodes_as_extend(Node *n) {
%type <str> doxygen_post_comment; %type <str> doxygen_post_comment;
%type <node> lambda_introducer lambda_body; %type <node> lambda_introducer lambda_body;
%type <pl> lambda_tail; %type <pl> lambda_tail;
%type <node> optional_constant_directive;
%type <str> virt_specifier_seq; %type <str> virt_specifier_seq;
%% %%
@ -5946,26 +5945,67 @@ ename : identifier { $$ = $1; }
| empty { $$ = (char *) 0;} | empty { $$ = (char *) 0;}
; ;
optional_constant_directive : constant_directive { $$ = $1; } optional_ignored_define
| empty { $$ = 0; } : constant_directive
| empty
;
optional_ignored_define_after_comma
: empty
| COMMA
| COMMA constant_directive
; ;
/* Enum lists - any #define macros (constant directives) within the enum list are ignored. Trailing commas accepted. */ /* Enum lists - any #define macros (constant directives) within the enum list are ignored. Trailing commas accepted. */
enumlist : enumlist COMMA optional_constant_directive edecl optional_constant_directive { enumlist : enumlist_item optional_ignored_define_after_comma {
Node *leftSibling = Getattr($1,"_last"); Setattr($1,"_last",$1);
set_nextSibling(leftSibling,$4);
Setattr($1,"_last",$4);
$$ = $1; $$ = $1;
} }
| enumlist COMMA optional_constant_directive { | enumlist_item enumlist_tail optional_ignored_define_after_comma {
set_nextSibling($1, $2);
Setattr($1,"_last",Getattr($2,"_last"));
$$ = $1; $$ = $1;
} }
| optional_constant_directive edecl optional_constant_directive { | optional_ignored_define {
$$ = 0;
}
;
enumlist_tail : COMMA enumlist_item {
Setattr($2,"_last",$2); Setattr($2,"_last",$2);
$$ = $2; $$ = $2;
} }
| optional_constant_directive { | enumlist_tail COMMA enumlist_item {
$$ = 0; set_nextSibling(Getattr($1,"_last"), $3);
Setattr($1,"_last",$3);
$$ = $1;
}
;
enumlist_item : optional_ignored_define edecl_with_dox optional_ignored_define {
$$ = $2;
}
;
edecl_with_dox : edecl {
$$ = $1;
}
| doxygen_comment edecl {
$$ = $2;
set_comment($2, $1);
}
| edecl doxygen_post_comment {
$$ = $1;
set_comment($1, $2);
}
| doxygen_post_comment edecl {
$$ = $2;
set_comment(previousNode, $1);
}
| doxygen_post_comment edecl doxygen_post_comment {
$$ = $2;
set_comment(previousNode, $1);
set_comment($2, $3);
} }
; ;
@ -5987,19 +6027,6 @@ edecl : identifier {
Setattr($$,"value",$1); Setattr($$,"value",$1);
Delete(type); Delete(type);
} }
| doxygen_comment edecl {
$$ = $2;
set_comment($2, $1);
}
| doxygen_post_comment edecl {
$$ = $2;
set_comment(previousNode, $1);
}
| edecl doxygen_post_comment {
$$ = $1;
set_comment($1, $2);
}
| empty { $$ = 0; previousNode = currentNode; currentNode = 0; }
; ;
etype : expr { etype : expr {