diff options
| author | Eelco Dolstra <e.dolstra@tudelft.nl> | 2006-08-09T15·08+0000 |
|---|---|---|
| committer | Eelco Dolstra <e.dolstra@tudelft.nl> | 2006-08-09T15·08+0000 |
| commit | a18d02e0b076a8a936c3c1660d93f941a9f3183f (patch) | |
| tree | c3f00cbc96f981483c8f3a2affeeb91d03001d77 /src/libexpr/primops.cc | |
| parent | c0bfcbdd45bfe3c45ab8bf188df926d214675a18 (diff) | |
* Print a warning that the subpath operator (~) is deprecated.
Diffstat (limited to 'src/libexpr/primops.cc')
| -rw-r--r-- | src/libexpr/primops.cc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc index 0dd73a016c7e..dfc565b4317e 100644 --- a/src/libexpr/primops.cc +++ b/src/libexpr/primops.cc @@ -197,6 +197,11 @@ static void processBinding(EvalState & state, Expr e, Derivation & drv, else if (matchNull(e)) ss.push_back(""); else if (matchSubPath(e, e1, e2)) { + static bool warn = false; + if (!warn) { + printMsg(lvlError, "warning: the subpath operator (~) is deprecated, use string concatenation (+) instead"); + warn = true; + } Strings ss2; processBinding(state, evalExpr(state, e1), drv, ss2); if (ss2.size() != 1) |