Christophe Rhodes [Wed, 25 Aug 2010 14:57:56 +0000 (15:57 +0100)]
implement swank:interactive-eval and swank:eval-and-grab-output
This allows C-c : and C-u C-c : to work, modulo the printing of an
unnecessary [1]. The evaluation semantics of R are not what a Lisper might
expect; printToString(eval(parse(...))) does not necessarily perform the
evaluation before altering the output stream with sink() -- so capturing
all sorts of incidental output if something goes wrong.
This commit brought to you using C-c C-c.
Christophe Rhodes [Wed, 25 Aug 2010 14:55:41 +0000 (15:55 +0100)]
ensure that the fifo is closed in printToString()
Whoops. Good to know that I can make the same basic stream mistakes
in any language.
Christophe Rhodes [Tue, 24 Aug 2010 17:06:48 +0000 (18:06 +0100)]
implement swank:compile-string-for-emacs
As long as my defun-prompt-regexp is set up right, I can now use C-c
C-c to develop swankr. Go me.
Christophe Rhodes [Fri, 20 Aug 2010 19:17:02 +0000 (20:17 +0100)]
implement swank:simple-completions
Probably fails as soon as slime and R disagree about what are token
constituents, or if an R token contains regexp metacharacters.
Christophe Rhodes [Fri, 20 Aug 2010 19:16:00 +0000 (20:16 +0100)]
stub for swank:operator-arglist
Christophe Rhodes [Thu, 19 Aug 2010 07:59:42 +0000 (08:59 +0100)]
return properly from sldbLoop()
Always emit a :debug-return message. The extra :sldb-return stuff in
swank.lisp is (I think) only needed for multiple threads.
Christophe Rhodes [Sun, 15 Aug 2010 15:46:13 +0000 (16:46 +0100)]
put abort restarts around the main and sldb loops
Also hide the abort restart imposed on us by the R interpreter itself,
which has the side-effect of aborting swank completely.
Christophe Rhodes [Sat, 14 Aug 2010 20:55:14 +0000 (21:55 +0100)]
The beginnings of a vaguely-useful sldb
Implement swank:frame-locals-and-catch-tags. There are problems:
1. it seems that some names can be present in an environment but not have
a value, causing eval to blow up;
2. the default printing routines aren't really adapted to the constraints
of rendering in sldb;
3. trying to display locals of some of the swank frames (perhaps anything
with a tryCatch or similar block?) causes R to complain about a promise
already in the process of evaluation;
4. (probably) other things I haven't yet found
Christophe Rhodes [Sat, 14 Aug 2010 20:12:20 +0000 (21:12 +0100)]
store calls and frames on entry to sldb itself
Rather than do complicated stuff to keep track of where we are in the
stack, simply store the interesting frames and calls in the sldb state
structure.
Christophe Rhodes [Fri, 13 Aug 2010 16:24:02 +0000 (17:24 +0100)]
implement swank:buffer-first-change
Simply stub it in, to stop things whining at me when I type into the
wrong window and edit a Lisp file (which happens to be in slime
mode...)
Christophe Rhodes [Fri, 13 Aug 2010 16:10:16 +0000 (17:10 +0100)]
return stack frames in slime's order (most recent first)
Christophe Rhodes [Fri, 13 Aug 2010 16:00:22 +0000 (17:00 +0100)]
get definitions (use of <-) to work in the REPL
the REPL now evaluates with envir=globalenv(), rather than in the
environment of `swank:listener-eval`...
Christophe Rhodes [Fri, 13 Aug 2010 15:03:51 +0000 (16:03 +0100)]
support invoking restarts from sldb
Christophe Rhodes [Fri, 13 Aug 2010 14:22:58 +0000 (15:22 +0100)]
use a restart description for restart printing, if available
Christophe Rhodes [Fri, 13 Aug 2010 10:49:48 +0000 (11:49 +0100)]
rework to support sldb
R doesn't have much in the way of dynamic binding; you can fake it by
messing with environments, but that's not fun.
So instead, pass around the connection (`io') and an object
representing the SLDB state (`sldbState') to all functions.
Poor-man's explicit continuation-passing-style...
We need to call some of the mainLoop internal functions from elsewhere
now, so make them not-internal any more.
Fix ridiculous thinko in the logical branch of writeSexpToString
use simpleCondition rather than simpleError in swank:throw-to-toplevel
implement swank:debugger-info-for-emacs
Now `q' in sldb (sldb-quit) works. Things that don't work:
1. the backtrace is the wrong way up.
2. calling any restarts
3. frame locals
4. returning from frames (dunno if R actually supports this)
5. zoom to source
6. probably other things
Christophe Rhodes [Wed, 11 Aug 2010 14:58:47 +0000 (15:58 +0100)]
implement swank:throw-to-toplevel
Christophe Rhodes [Wed, 11 Aug 2010 14:02:47 +0000 (15:02 +0100)]
include swank.R hacks from today
We get far enough to start up a swank server in R and connect to it from
emacs; we get a REPL which formats the R-style results from parsing and
evaluating the input it receives. Debugging, stepping, documentation,
arglist and so on is basically entirely missing.