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* Print a shared textual ATerm if the term if very large. Due to

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substitutions, Fix terms are very large when printed as trees (in 
  memory, they are quite compact due to sharing).
This commit is contained in:
Eelco Dolstra 2003-11-05 16:20:57 +00:00
parent 80bb477cc4
commit e17e95a828
1 changed files with 9 additions and 1 deletions
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10
src/libnix/expr.cc
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@ -6,13 +6,21 @@
string printTerm(ATerm t) string printTerm(ATerm t)
{ {
char * s = ATwriteToString(t); char * s = ATwriteToString(t);
if (!s) throw Error("cannot print term");
return s; return s;
} }
Error badTerm(const format & f, ATerm t) Error badTerm(const format & f, ATerm t)
{ {
return Error(format("%1%, in `%2%'") % f.str() % printTerm(t)); char * s = ATwriteToString(t);
if (!s) throw Error("cannot print term");
if (strlen(s) > 1000) {
int len;
s = ATwriteToSharedString(t, &len);
if (!s) throw Error("cannot print term");
}
return Error(format("%1%, in `%2%'") % f.str() % (string) s);
} }