blob: e12318ab8ceb5cb6c24bf7de5ca99b80fa6c545a (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
#include <u.h>
#include <libc.h>
#include <thread.h>
#include <bio.h>
#include "apl9.h"
ErrorGuard *
newerrorguard(Array *codes, Statement *guard)
{
ThreadData *td = getthreaddata();
DfnFrame *fr = getcurrentdfn();
ErrorGuard *eg = emallocz(sizeof(ErrorGuard), 1);
eg->active = 1;
eg->guard = guard;
if(fr == nil)
td->globalerrorguard = eg;
else{
eg->next = fr->errorguards;
fr->errorguards = eg;
eg->frame = dupdfnframe(fr);
}
for(int i = 0; i < GetSize(codes); i++)
eg->code |= (1<<codes->intdata[i]);
return eg;
}
void
throwerror(Rune *msg, int err)
{
ThreadData *td = getthreaddata();
ErrorGuard *matching = td->globalerrorguard;
DfnFrame *frame = getcurrentdfn();
td->lasterror = err;
if(td->lasterrormsg)
free(td->lasterrormsg);
td->lasterrormsg = runestrdup(msg);
while(frame != nil){
for(ErrorGuard *eg = frame->errorguards; eg != nil; eg = eg->next){
if(!eg->active)
continue;
if(((1<<err) & eg->code) || (eg->code == 1)){
matching = eg;
goto match;
}
}
frame = frame->prev;
popdfnframe();
}
match:
longjmp(matching->jmp, 1);
}
Rune *
errorstr(int code)
{
Rune *err;
switch(code){
case ESyntax: err = L"SYNTAX ERROR"; break;
case EIndex: err = L"INDEX ERROR"; break;
case ERank: err = L"RANK ERROR"; break;
case ELength: err = L"LENGTH ERROR"; break;
case EValue: err = L"VALUE ERROR"; break;
case EDomain: err = L"DOMAIN ERROR"; break;
case ENotImplemented: err = L"NOT IMPLEMENTED"; break;
default: err = L""; break;
}
return err;
}
|