wroclaw-git-backups/nix
1
0
Fork 0
mirror of https://github.com/NixOS/nix synced 2025-06-28 17:51:15 +02:00
Code Activity

Add a symbol __curPos that expands to the current source location

Browse source 
I.e. an attribute set { file = <string>; line = <int>; column = <int>; }.
This commit is contained in:
Eelco Dolstra 2013-11-18 20:14:54 +01:00
parent 90b5e69284
commit fc33fd86b7
7 changed files with 43 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

7
src/libexpr/parser.y
View file

@ -355,7 +355,12 @@ expr_select
;
expr_simple
: ID { $$ = new ExprVar(CUR_POS, data->symbols.create($1)); }
: ID {
if (strcmp($1, "__curPos") == 0)
$$ = new ExprPos(CUR_POS);
else
$$ = new ExprVar(CUR_POS, data->symbols.create($1));
}
| INT { $$ = new ExprInt($1); }
| '"' string_parts '"' {
/* For efficiency, and to simplify parse trees a bit. */