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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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19
src/libexpr/nixexpr.cc
View file

@ -194,10 +194,18 @@ Expr substitute(const ATermMap & subs, Expr e)
abort();
subs2.remove(name);
}
return ATmake("Function(<term>, <term>)", formals,
return ATmake("Function(<term>, <term>)",
substitute(subs, (ATerm) formals),
substitute(subs2, body));
}
if (atMatch(m, e) >> "Function" >> name >> body) {
ATermMap subs2(subs);
subs2.remove(name);
return ATmake("Function1(<term>, <term>)", name,
substitute(subs2, body));
}
/* Idem for a mutually recursive attribute set. */
ATermList rbnds, nrbnds;
if (atMatch(m, e) >> "Rec" >> rbnds >> nrbnds) {
@ -249,7 +257,6 @@ void checkVarDefs(const ATermMap & defs, Expr e)
if (!defs.get(name))
throw Error(format("undefined variable `%1%'")
% aterm2String(name));
return;
}
else if (atMatch(m, e) >> "Function" >> formals >> body) {
@ -263,7 +270,13 @@ void checkVarDefs(const ATermMap & defs, Expr e)
abort();
defs2.set(name, (ATerm) ATempty);
}
return checkVarDefs(defs2, body);
checkVarDefs(defs2, body);
}
else if (atMatch(m, e) >> "Function1" >> name >> body) {
ATermMap defs2(defs);
defs2.set(name, (ATerm) ATempty);
checkVarDefs(defs2, body);
}
else if (atMatch(m, e) >> "Rec" >> rbnds >> nrbnds) {