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* Added plain lambdas, e.g., `let { id = x: x; const = x: y: x; }'.

Browse source 
`bla:' is now no longer parsed as a URL.

* Re-enabled support for the `args' attribute in derivations to
  specify command line arguments to the builder, e.g.,

    ...
    builder = /usr/bin/python;
    args = ["-c" ./builder.py];
    ...
This commit is contained in:
Eelco Dolstra 2004-03-28 20:34:22 +00:00
parent f8cd904e05
commit db3e644c1c
5 changed files with 64 additions and 38 deletions
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7
src/libexpr/eval.cc
View file

@ -195,6 +195,7 @@ Expr evalExpr2(EvalState & state, Expr e)
cons == "Int" ||
cons == "Bool" ||
cons == "Function" ||
cons == "Function1" ||
cons == "Attrs" ||
cons == "List"))
return e;
@ -226,6 +227,12 @@ Expr evalExpr2(EvalState & state, Expr e)
return evalExpr(state,
substArgs(e4, formals, evalExpr(state, e2)));
else if (atMatch(m, e1) >> "Function1" >> name >> e4) {
ATermMap subs;
subs.set(name, e2);
return evalExpr(state, substitute(subs, e4));
}
else throw badTerm("expecting a function or primop", e1);
}