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Add underscore to repl

This commit is contained in:
bakpakin 2018-01-13 10:34:59 -05:00
parent 921f087c96
commit 94a4970053
3 changed files with 14 additions and 2 deletions
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9
client/main.c
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@ -73,10 +73,18 @@ static void bshift(DstBuffer *buf, int32_t delta) {
}
}
/* Wrap a value to add to the env */
static void set_underscore(Dst val) {
DstTable *t = dst_table(0);
dst_table_put(t, dst_csymbolv("value"), val);
dst_put(env, dst_csymbolv("_"), dst_wrap_table(t));
}
/* simple repl */
static int repl() {
DstBuffer b;
dst_buffer_init(&b, 256);
set_underscore(dst_wrap_nil());
for (;;) {
int c;
DstParseResult res;
@ -120,6 +128,7 @@ static int repl() {
dst_puts(dst_formatc("runtime error: %S\n", dst_to_string(ret)));
} else {
dst_puts(dst_formatc("%v\n", ret));
set_underscore(ret);
}
} else {
dst_puts(dst_formatc("compile error: %S\n", cres.error));

2
core/stl.c
View File

@ -378,7 +378,7 @@ Dst dst_loadstl(int flags) {
if (dst_checktype(ret, DST_TABLE)) {
DstTable *v = dst_table(1);
dst_table_put(v, dst_csymbolv("value"), ret);
dst_put(ret, dst_csymbolv("-env-"), dst_wrap_table(v));
dst_put(ret, dst_csymbolv("_env"), dst_wrap_table(v));
}
return ret;
}

5
dsttest/suite0.dst
View File

@ -72,7 +72,7 @@
(assert (= 7 (| 3 4)) "bit or")
(assert (= 0 (& 3 4)) "bit and")
# Set global variables to prevent some compiler optimizations that defeat point of the test
# Set global variables to prevent some possible compiler optimizations that defeat point of the test
(var zero 0)
(var one 1)
(var two 2)
@ -84,6 +84,9 @@
(var f91 nil)
(varset! f91 (fn [n] (if (> n 100) (- n 10) (f91 (f91 (+ n 11))))))
(assert (= 91 (f91 10)), "f91(10) = 91")
(assert (= 91 (f91 11)), "f91(11) = 91")
(assert (= 91 (f91 20)), "f91(20) = 91")
(assert (= 91 (f91 31)), "f91(31) = 91")
(assert (= 91 (f91 100)), "f91(100) = 91")
(assert (= 91 (f91 101)), "f91(101) = 91")
(assert (= 92 (f91 102)), "f91(102) = 92")