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

d: improvements on symbol kinds

Browse Source 
public enum SymbolKind
    {
      S_YYEMPTY = -2,    /* No symbol.  */
      S_YYEOF = 0,       /* $end  */
      S_YYERROR = 1,     /* error  */
      S_YYUNDEF = 2,     /* $undefined  */
      S_EQ = 3,          /* "="  */

* data/skeletons/d.m4 (api.symbol.prefix): Default to S_.
Output the symbol kind definitions with a comment.
This commit is contained in:
Akim Demaille
2020-04-08 08:53:19 +02:00
parent 007e1b5f0a
commit 6c5f690da4
1 changed files with 20 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
data/skeletons/d.m4
View File

@@ -148,11 +148,9 @@ private static immutable b4_int_type_for([$2])[[]] yy$1_ =
])
## -------------------------- ##
## (External) token numbers. ##
## -------------------------- ##
b4_percent_define_default([[api.symbol.prefix]], [[YYSYMBOL_]])
## ------------- ##
## Token kinds. ##
## ------------- ##
# b4_token_enum(TOKEN-NAME, TOKEN-NUMBER)
# ---------------------------------------
@@ -165,7 +163,7 @@ m4_define([b4_token_enum],
# --------------
# Output the definition of the tokens as enums.
m4_define([b4_token_enums],
[/* Tokens. */
[/* Token kinds. */
public enum YYTokenType {
/** Token returned by the scanner to signal the end of its input. */
@@ -174,19 +172,24 @@ b4_symbol_foreach([b4_token_enum])
}
])
## --------------------------- ##
## (Internal) symbol numbers. ##
## --------------------------- ##
## -------------- ##
## Symbol kinds. ##
## -------------- ##
b4_percent_define_default([[api.symbol.prefix]], [[S_]])
# b4_symbol_enum(SYMBOL-NUM)
# --------------------------
# Output the definition of this symbol as an enum.
m4_define([b4_symbol_enum],
[m4_ifval(b4_symbol([$1], [kind]),
[m4_format([[%s = %s]],
b4_symbol([$1], [kind]),
b4_symbol([$1], [number]))])])
[m4_format([ %-30s %s],
m4_format([[%s = %s,]],
b4_symbol([$1], [kind]),
[$1]),
[b4_symbol_tag_comment([$1])])])
# b4_declare_symbol_enum
@@ -195,14 +198,12 @@ m4_define([b4_symbol_enum],
# Defining YYEMPTY here is important: it forces the compiler
# to use a signed type, which matters for yytoken.
m4_define([b4_declare_symbol_enum],
[[ /* Symbol type. */
[[ /* Symbol kinds. */
public enum SymbolKind
{
]m4_join([,
],
]b4_symbol_kind([-2])[ = -2,
b4_symbol_map([b4_symbol_enum]))[
};
]b4_symbol_kind([-2])[ = -2, /* No symbol. */
]b4_symbol_foreach([b4_symbol_enum])dnl
[ };
]])])