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d7efd76394
concatenation and string coercion. This was a big mess (see
e.g. NIX-67). Contexts are now folded into strings, so that they
don't cause evaluation errors when they're not expected. The
semantics of paths has been clarified (see nixexpr-ast.def).
toString() and coerceToString() have been merged.
Semantic change: paths are now copied to the store when they're in a
concatenation (and in most other situations - that's the
formalisation of the meaning of a path). So
"foo " + ./bla
evaluates to "foo /nix/store/hash...-bla", not "foo
/path/to/current-dir/bla". This prevents accidental impurities, and
is more consistent with the treatment of derivation outputs, e.g.,
`"foo " + bla' where `bla' is a derivation. (Here `bla' would be
replaced by the output path of `bla'.)
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|---|---|---|
| .. | ||
| attr-path.cc | ||
| attr-path.hh | ||
| eval.cc | ||
| eval.hh | ||
| expr-to-xml.cc | ||
| expr-to-xml.hh | ||
| get-drvs.cc | ||
| get-drvs.hh | ||
| lexer.l | ||
| Makefile.am | ||
| nix.sdf | ||
| nixexpr-ast.def | ||
| nixexpr.cc | ||
| nixexpr.hh | ||
| parser.hh | ||
| parser.y | ||
| primops.cc | ||