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position for stdin, string; (string) for trace; fix tests

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This commit is contained in:
Ben Burdette 2020-05-21 14:28:45 -06:00
parent 6a420d672c
commit 0e49de6a2b
5 changed files with 60 additions and 38 deletions
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17
src/libexpr/nixexpr.cc
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@ -197,7 +197,22 @@ std::ostream & operator << (std::ostream & str, const Pos & pos)
if (!pos)
str << "undefined position";
else
str << (format(ANSI_BOLD "%1%" ANSI_NORMAL ":%2%:%3%") % (string) pos.file % pos.line % pos.column).str();
{
auto f = format(ANSI_BOLD "%1%" ANSI_NORMAL ":%2%:%3%");
switch (pos.origin) {
case foFile:
f % (string) pos.file;
break;
case foStdin:
case foString:
f % "(string)";
break;
default:
throw Error("unhandled Pos origin!");
}
str << (f % pos.line % pos.column).str();
}
return str;
}