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Fix: Use the check function defined in the option declaration if it exists.

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svn path=/nixpkgs/trunk/; revision=17277
This commit is contained in:
Nicolas Pierron 2009-09-19 16:49:31 +00:00
parent bf4162eb0b
commit 5f138aebde
1 changed files with 13 additions and 11 deletions
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24
pkgs/lib/options.nix
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@ -46,19 +46,21 @@ rec {
apply = lib.id;
};
mergeFromType = opt:
functionsFromType = opt:
if decl ? type && decl.type ? merge then
opt // { merge = decl.type.merge; }
opt
// optionalAttrs (decl.type ? merge) { inherit (decl.type) merge; }
// optionalAttrs (decl.type ? check) { inherit (decl.type) check; }
else
opt;
addDeclaration = opt: opt // decl;
ensureMergeInputType = opt:
if decl ? type then
if opt ? check then
opt // {
merge = list:
if all decl.type.check list then
if all opt.check list then
opt.merge list
else
throw "One of the definitions has a bad type.";
@ -66,18 +68,18 @@ rec {
else opt;
ensureDefaultType = opt:
if decl ? type && decl ? default then
if opt ? check && opt ? default then
opt // {
default =
if decl.type.check decl.default then
decl.default
if opt.check opt.default then
opt.default
else
throw "The default value has a bad type.";
}
else opt;
handleOptionSets = opt:
if decl ? type && decl.type.hasOptions then
if opt ? type && opt.type.hasOptions then
let
optionConfig = opts: config:
@ -86,7 +88,7 @@ rec {
in
opt // {
merge = list:
decl.type.iter
opt.type.iter
(path: opts:
(lib.fix
(fixableMergeFun (recurseInto path) (optionConfig opts))
@ -95,7 +97,7 @@ rec {
opt.name
(opt.merge list);
options =
let path = decl.type.docPath opt.name; in
let path = opt.type.docPath opt.name; in
(lib.fix
(fixableMergeFun (recurseInto path) (optionConfig []))
).options;
@ -105,7 +107,7 @@ rec {
in
foldl (opt: f: f opt) init [
# default settings
mergeFromType
functionsFromType
# user settings
addDeclaration