diff options
| author | Alasdair Armstrong | 2018-01-25 00:30:24 +0000 |
|---|---|---|
| committer | Alasdair Armstrong | 2018-01-25 00:30:24 +0000 |
| commit | d87d4ad3a6d2ec2804cb7b20128fecb6d9df4e6e (patch) | |
| tree | 76a85742db61e8f4dcac8471c6c0856603453543 /editors | |
| parent | 10e2be330c14aaddbd8ada6b6ce8a8a63c7d605e (diff) | |
Add simple conditional processing and file include
Can now use C-style include declarations to include files within other sail files. This is done in such a way that all the location information is preserved in error messages. As an example:
$include "aarch64/prelude.sail"
$define SYM
$ifndef SYM
$include <../util.sail>
$endif
would include the file aarch64/prelude.sail relative to the file where the include is contained. It then defines a symbol SYM and includes another file if it is not defined. The <../util.sail> include will be accessed relative to $SAIL_DIR/lib, so $SAIL_DIR/lib/../util.sail in this case.
This can be used with the standard C trick of
$ifndef ONCE
$define ONCE
val f : unit -> unit
$endif
so no matter how many sail files include the above file, the valspec for f will only appear once.
Currently we just have $include, $define, $ifdef and $ifndef (with $else and $endif). We're using $ rather than # because # is already used in internal identifiers, although this could be switched.
Diffstat (limited to 'editors')
| -rw-r--r-- | editors/sail2-mode.el | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/editors/sail2-mode.el b/editors/sail2-mode.el index e17b1a4f..eb3e0fe6 100644 --- a/editors/sail2-mode.el +++ b/editors/sail2-mode.el @@ -19,7 +19,7 @@ '("vector" "int" "nat" "atom" "range" "unit" "bit" "real" "list" "bool" "string" "bits")) (defconst sail2-special - '("_prove")) + '("_prove" "$define" "$include" "$ifdef" "$ifndef" "$else" "$endif")) (defconst sail2-font-lock-keywords `((,(regexp-opt sail2-keywords 'symbols) . font-lock-keyword-face) |