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0b80935c22
This includes position information in more places, making debugging
easier.
Before:
```
$ nix-instantiate --show-trace --eval tests/functional/lang/eval-fail-using-set-as-attr-name.nix
error:
… while evaluating an attribute name
at «none»:0: (source not available)
error: value is a set while a string was expected
```
After:
```
error:
… while evaluating an attribute name
at /pwd/lang/eval-fail-using-set-as-attr-name.nix:5:10:
4| in
5| attr.${key}
| ^
6|
error: value is a set while a string was expected
```
848 B
848 B
synopsis: Source locations are printed more consistently in errors issues: #561 prs: #9555 description: {
Source location information is now included in error messages more consistently. Given this code:
let
attr = {foo = "bar";};
key = {};
in
attr.${key}
Previously, Nix would show this unhelpful message when attempting to evaluate it:
error:
… while evaluating an attribute name
at «none»:0: (source not available)
error: value is a set while a string was expected
Now, the error message displays where the problematic value was found:
error:
… while evaluating an attribute name
at bad.nix:4:11:
3| key = {};
4| in attr.${key}
| ^
5|
error: value is a set while a string was expected
}