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Show position info for failing <...> lookups

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This commit is contained in:
Eelco Dolstra 2015-01-07 13:43:55 +01:00
parent 6fec43ccb3
commit 153a943de7
3 changed files with 8 additions and 4 deletions
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8
src/libexpr/parser.y
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@ -626,7 +626,7 @@ Path EvalState::findFile(const string & path)
}
Path EvalState::findFile(SearchPath & searchPath, const string & path)
Path EvalState::findFile(SearchPath & searchPath, const string & path, const Pos & pos)
{
foreach (SearchPath::iterator, i, searchPath) {
Path res;
@ -641,7 +641,11 @@ Path EvalState::findFile(SearchPath & searchPath, const string & path)
}
if (pathExists(res)) return canonPath(res);
}
throw ThrownError(format("file ‘%1%’ was not found in the Nix search path (add it using $NIX_PATH or -I)") % path);
format f = format(
"file ‘%1%’ was not found in the Nix search path (add it using $NIX_PATH or -I)"
+ string(pos ? ", at %2%" : ""));
f.exceptions(boost::io::all_error_bits ^ boost::io::too_many_args_bit);
throw ThrownError(f % path % pos);
}