This introduces:
* new syntax for list literals, put comma-separated values between
braces for your new list
* new syntax for indexing, do `foo[index]` to get the value in `foo` at
`index`. Lists also allow negative indices too. Any type that wants to
be indexed can include their own __index__ function as well.
* new VM instruction, BuildList. List literals were a lot easier to
implement using this rather than creating a new list, creating a
temporary stack value, and then duplicating + pushing to that
temporary value over and over.
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
This is hopefully going to make navigating the source tree easier.
Hopefully.
The only types that don't get their own files are:
* function types (UserFunction, BuiltinFunction, Method), which all live
in obj/function.rs
* Nil, which lives in obj.rs
* Obj, which lives in obj.rs
Type definitions and init_types now live in obj/ty.rs.
New obj::prelude module for common imports.
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
