Future/bison
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/bison.git synced 2026-03-09 12:23:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

parser: expose a list of symbols

Browse Source 
* src/parse-gram.y (%type): Also use current_class.
(symbol_decl.1): Rename as...
(symbols.1): this.
This commit is contained in:
Akim Demaille
2020-02-19 18:51:21 +01:00
parent e50ec28153
commit 7eca26e87b
1 changed files with 13 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
src/parse-gram.y
View File

@@ -449,7 +449,7 @@ grammar_declaration:
;
%type <symbol_list*> nterm_decls symbol_decls symbol_decl.1
%type <symbol_list*> nterm_decls symbol_decls symbols.1
token_decls token_decls_for_prec
token_decl.1 token_decl_for_prec.1;
symbol_declaration:
@@ -463,8 +463,9 @@ symbol_declaration:
current_class = unknown_sym;
symbol_list_free ($syms);
}
| "%type" symbol_decls[syms]
| "%type" { current_class = pct_type_sym; } symbol_decls[syms]
{
current_class = unknown_sym;
symbol_list_free ($syms);
}
| precedence_declarator token_decls_for_prec[syms]
@@ -630,30 +631,32 @@ token_decl_for_prec:
// A non empty list of typed symbols (for %type).
symbol_decls:
symbol_decl.1[syms]
symbols.1[syms]
{
$$ = $syms;
}
| TAG symbol_decl.1[syms]
| TAG symbols.1[syms]
{
$$ = symbol_list_type_set ($syms, $TAG);
}
| symbol_decls TAG symbol_decl.1[syms]
| symbol_decls TAG symbols.1[syms]
{
$$ = symbol_list_append ($1, symbol_list_type_set ($syms, $TAG));
}
;
// One or more token declarations (for %type).
symbol_decl.1:
// One or more symbols.
symbols.1:
symbol
{
symbol_class_set ($symbol, pct_type_sym, @symbol, false);
if (current_class != unknown_sym)
symbol_class_set ($symbol, current_class, @symbol, false);
$$ = symbol_list_sym_new ($symbol, @symbol);
}
| symbol_decl.1 symbol
| symbols.1 symbol
{
symbol_class_set ($symbol, pct_type_sym, @symbol, false);
if (current_class != unknown_sym)
symbol_class_set ($symbol, current_class, @symbol, false);
$$ = symbol_list_append ($1, symbol_list_sym_new ($symbol, @symbol));
}
;