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authorKeith Packard <keithp@keithp.com>2016-11-15 09:55:22 -0800
committerKeith Packard <keithp@keithp.com>2016-11-17 22:18:39 -0800
commitacfc29f2400cc3c06745edb5ec0c82b82998d3cc (patch)
tree87d7a10500c9576afb563e315b0855134ce66b47 /src/lisp/ao_lisp.h
parent3d837e52b29da16088fb5ca7921d8bcb99941759 (diff)
altos/lisp: Evaluate macros once, then smash them into place
This assumes that macros are all pure functions, which should be true for syntactic macros. Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src/lisp/ao_lisp.h')
-rw-r--r--src/lisp/ao_lisp.h17
1 files changed, 9 insertions, 8 deletions
diff --git a/src/lisp/ao_lisp.h b/src/lisp/ao_lisp.h
index efd13cf5..2db4914f 100644
--- a/src/lisp/ao_lisp.h
+++ b/src/lisp/ao_lisp.h
@@ -173,14 +173,15 @@ ao_lisp_frame_poly(struct ao_lisp_frame *frame) {
enum eval_state {
eval_sexpr, /* Evaluate an sexpr */
- eval_val,
- eval_formal,
- eval_exec,
- eval_cond,
- eval_cond_test,
- eval_progn,
- eval_while,
- eval_while_test,
+ eval_val, /* Value computed */
+ eval_formal, /* Formal computed */
+ eval_exec, /* Start a lambda evaluation */
+ eval_cond, /* Start next cond clause */
+ eval_cond_test, /* Check cond condition */
+ eval_progn, /* Start next progn entry */
+ eval_while, /* Start while condition */
+ eval_while_test, /* Check while condition */
+ eval_macro, /* Finished with macro generation */
};
struct ao_lisp_stack {