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gc: remove duplicate errors, give better error for I.(T)

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R=ken2
CC=golang-dev
https://golang.org/cl/370041
This commit is contained in:
Russ Cox 2010-03-09 15:09:37 -08:00
parent e00795859b
commit 529369e452
1 changed files with 16 additions and 7 deletions
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23
src/cmd/gc/subr.c
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@ -79,7 +79,7 @@ errcmp(const void *va, const void *vb)
return a->lineno - b->lineno;
if(a->seq != b->seq)
return a->seq - b->seq;
return 0;
return strcmp(a->msg, b->msg);
}
void
@ -91,7 +91,8 @@ flusherrors(void)
return;
qsort(err, nerr, sizeof err[0], errcmp);
for(i=0; i<nerr; i++)
print("%s", err[i].msg);
if(i==0 || strcmp(err[i].msg, err[i-1].msg) != 0)
print("%s", err[i].msg);
nerr = 0;
}
@ -3082,11 +3083,19 @@ runifacechecks(void)
needexplicit = 1;
}
if(wrong) {
if(samename)
yyerror("%T is not %T\n\tmissing %S%hhT\n\tdo have %S%hhT",
t, iface, m->sym, m->type, samename->sym, samename->type);
else
yyerror("%T is not %T\n\tmissing %S%hhT", t, iface, m->sym, m->type);
if(p->explicit) {
if(samename)
yyerror("%T cannot contain %T\n\tmissing %S%hhT\n\tdo have %S%hhT",
iface, t, m->sym, m->type, samename->sym, samename->type);
else
yyerror("%T cannot contain %T\n\tmissing %S%hhT", iface, t, m->sym, m->type);
} else {
if(samename)
yyerror("%T is not %T\n\tmissing %S%hhT\n\tdo have %S%hhT",
t, iface, m->sym, m->type, samename->sym, samename->type);
else
yyerror("%T is not %T\n\tmissing %S%hhT", t, iface, m->sym, m->type);
}
}
else if(!p->explicit && needexplicit) {
if(m) {