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Change printing of abstracts with tostring in pp

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This change makes pretty printing not hide "abstractness".
This commit is contained in:
Calvin Rose 2020-01-16 18:10:17 -06:00
parent 962cd7e5f5
commit 174ff87946
2 changed files with 53 additions and 42 deletions
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2
src/boot/boot.janet
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@ -224,7 +224,7 @@
r (gensym)]
~(let [,f (,fiber/new (fn [] ,body) :ie)
,r (,resume ,f)]
(if (= (,fiber/status ,f) :error)
(if (,= (,fiber/status ,f) :error)
(do (def ,err ,r) ,(if fib ~(def ,fib ,f)) ,;(tuple/slice catch 1))
,r))))

93
src/core/pp.c
View File

@ -181,49 +181,43 @@ static void janet_escape_buffer_b(JanetBuffer *buffer, JanetBuffer *bx) {
janet_escape_string_impl(buffer, bx->data, bx->count);
}
void janet_description_b(JanetBuffer *buffer, Janet x) {
void janet_to_string_b(JanetBuffer *buffer, Janet x) {
switch (janet_type(x)) {
case JANET_NIL:
janet_buffer_push_cstring(buffer, "nil");
return;
break;
case JANET_BOOLEAN:
janet_buffer_push_cstring(buffer,
janet_unwrap_boolean(x) ? "true" : "false");
return;
break;
case JANET_NUMBER:
number_to_string_b(buffer, janet_unwrap_number(x));
return;
case JANET_KEYWORD:
janet_buffer_push_u8(buffer, ':');
/* fallthrough */
break;
case JANET_STRING:
case JANET_SYMBOL:
case JANET_KEYWORD:
janet_buffer_push_bytes(buffer,
janet_unwrap_string(x),
janet_string_length(janet_unwrap_string(x)));
return;
case JANET_STRING:
janet_escape_string_b(buffer, janet_unwrap_string(x));
return;
break;
case JANET_BUFFER: {
JanetBuffer *b = janet_unwrap_buffer(x);
if (b == buffer) {
/* Ensures buffer won't resize while escaping */
janet_buffer_ensure(b, 5 * b->count + 3, 1);
}
janet_escape_buffer_b(buffer, b);
return;
JanetBuffer *to = janet_unwrap_buffer(x);
/* Prevent resizing buffer while appending */
if (buffer == to) janet_buffer_extra(buffer, to->count);
janet_buffer_push_bytes(buffer, to->data, to->count);
break;
}
case JANET_ABSTRACT: {
void *p = janet_unwrap_abstract(x);
const JanetAbstractType *at = janet_abstract_type(p);
if (at->tostring) {
at->tostring(p, buffer);
} else {
const char *n = at->name;
string_description_b(buffer, n, janet_unwrap_abstract(x));
case JANET_ABSTRACT:
{
JanetAbstract p = janet_unwrap_abstract(x);
const JanetAbstractType *t = janet_abstract_type(p);
if (t->tostring != NULL) {
t->tostring(p, buffer);
} else {
string_description_b(buffer, t->name, p);
}
}
return;
}
case JANET_CFUNCTION: {
Janet check = janet_table_get(janet_vm_registry, x);
if (janet_checktype(check, JANET_SYMBOL)) {
@ -255,26 +249,43 @@ void janet_description_b(JanetBuffer *buffer, Janet x) {
}
}
void janet_to_string_b(JanetBuffer *buffer, Janet x) {
void janet_description_b(JanetBuffer *buffer, Janet x) {
switch (janet_type(x)) {
default:
janet_description_b(buffer, x);
break;
case JANET_BUFFER: {
JanetBuffer *to = janet_unwrap_buffer(x);
/* Prevent resizing buffer while appending */
if (buffer == to) janet_buffer_extra(buffer, to->count);
janet_buffer_push_bytes(buffer, to->data, to->count);
break;
}
case JANET_STRING:
case JANET_SYMBOL:
case JANET_KEYWORD:
janet_buffer_push_bytes(buffer,
janet_unwrap_string(x),
janet_string_length(janet_unwrap_string(x)));
janet_buffer_push_u8(buffer, ':');
break;
case JANET_STRING:
janet_escape_string_b(buffer, janet_unwrap_string(x));
return;
case JANET_BUFFER: {
JanetBuffer *b = janet_unwrap_buffer(x);
if (b == buffer) {
/* Ensures buffer won't resize while escaping */
janet_buffer_ensure(b, 5 * b->count + 3, 1);
}
janet_escape_buffer_b(buffer, b);
return;
}
case JANET_ABSTRACT:
{
JanetAbstract p = janet_unwrap_abstract(x);
const JanetAbstractType *t = janet_abstract_type(p);
if (t->tostring != NULL) {
janet_buffer_push_cstring(buffer, "<");
janet_buffer_push_cstring(buffer, t->name);
janet_buffer_push_cstring(buffer, " ");
t->tostring(p, buffer);
janet_buffer_push_cstring(buffer, ">");
} else {
string_description_b(buffer, t->name, p);
}
return;
}
}
janet_to_string_b(buffer, x);
}
const uint8_t *janet_description(Janet x) {