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moar const working lol

This commit is contained in:
Adam D. Ruppe 2020-05-08 16:14:49 -04:00
parent c4b25e9645
commit 8edcd7ad8b
1 changed files with 36 additions and 12 deletions
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48
jsvar.d
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@ -45,6 +45,11 @@
easy interop with a little scripting language that resembles a cross between
D and Javascript - just like you can write in D itself using this type.
Please note that function default arguments are NOT likely to work in the script.
You'd have to use a helper thing that I haven't written yet. opAssign can never
do it because that information is lost when it becomes a pointer. ParamDefault
is thus commented out for now.
Properties:
$(LIST
@ -676,11 +681,10 @@ struct var {
ParameterTypeTuple!T fargs;
// FIXME: default args?
// default args? nope they can't work cuz it is assigning a function pointer by here. alas.
enum lol = static_foreach(fargs.length, 1, -1,
`t(`,
``, ` < args.length ? args[`,`].get!(typeof(fargs[`,`])) : typeof(fargs[`,`]).init,`,
`)`);
`t(`,``,` < args.length ? args[`,`].get!(typeof(fargs[`,`])) : typeof(fargs[`,`]).init,`,`)`);
//`t(`,``,` < args.length ? args[`,`].get!(typeof(fargs[`,`])) : ParamDefault!(T, `,`)(),`,`)`);
/+
foreach(idx, a; fargs) {
if(idx == args.length)
@ -2173,15 +2177,20 @@ WrappedNativeObject wrapNativeObject(Class, bool special = false)(Class obj) if(
foreach(idx, overload; AliasSeq!(__traits(getOverloads, obj, memberName))) static if(.isScriptable!(__traits(getAttributes, overload))()) {
var gen;
gen._function = delegate (var vthis_, var[] vargs) {
Parameters!(__traits(getOverloads, Class, memberName)[idx]) args;
Parameters!(__traits(getOverloads, Class, memberName)[idx]) fargs;
/*
enum lol = static_foreach(fargs.length, 1, -1,
`__traits(getOverloads, obj, memberName)[idx](`,``,` < vargs.length ? vargs[`,`].get!(typeof(fargs[`,`])) : ParamDefault!(__traits(getOverloads, Class, memberName)[idx], `,`)(),`,`)`);
*/
enum lol = static_foreach(fargs.length, 1, -1,
`__traits(getOverloads, obj, memberName)[idx](`,``,` < vargs.length ? vargs[`,`].get!(typeof(fargs[`,`])) :
typeof(fargs[`,`]).init,`,`)`);
// FIXME: what if there are multiple @scriptable overloads?!
// FIXME: what about @properties?
foreach(idx, ref arg; args)
if(idx < vargs.length)
arg = vargs[idx].get!(typeof(arg));
static if(special) {
Class obj;
//if(vthis_.payloadType() != var.Type.Object) { import std.stdio; writeln("getwno on ", vthis_); }
@ -2204,10 +2213,10 @@ WrappedNativeObject wrapNativeObject(Class, bool special = false)(Class obj) if(
var ret;
static if(!is(typeof(__traits(getOverloads, obj, memberName)[idx](args)) == void))
ret = __traits(getOverloads, obj, memberName)[idx](args);
static if(!is(typeof(__traits(getOverloads, obj, memberName)[idx](fargs)) == void))
ret = mixin(lol);
else
__traits(getOverloads, obj, memberName)[idx](args);
mixin(lol ~ ";");
return ret;
};
@ -2390,3 +2399,18 @@ string static_foreach(size_t length, int t_start_idx, int t_end_idx, string[] t.
return a;
}
// LOL this can't work because function pointers drop the default :(
private
auto ParamDefault(alias T, size_t idx)() {
static if(is(typeof(T) Params == __parameters)) {
auto fn(Params[idx .. idx + 1] args) {
return args[0];
}
static if(__traits(compiles, fn())) {
return fn();
} else {
return Params[idx].init;
}
} else static assert(0);
}