Tya v0.59 Release Notes

Status: shipped. tya version reports 0.59.0.

v0.59 makes primitive values behave like class instances. Numbers, strings, arrays, dicts, booleans, and nil now expose their standard behavior through method calls:

42.to_s()
"hi".upper()
[1, 2, 3].len()
{ name: "tya" }.keys()
true.to_s()
nil.class.name

The six primitive class identifiers are reserved at top level: Number, String, Array, Dict, Boolean, and Nil. x.class returns the wrapper class singleton for both primitive values and user-defined instances.

Breaking Changes

kind(x) is removed. Use x.class for identity checks or x.class.name for a string label.
The string, array, and dict stdlib modules are removed. Use methods on the value: s.trim(), items.map(fn), data.keys().
Top-level primitive helper builtins such as len, trim, contains, push, pop, keys, values, map, filter, reduce, to_string, to_int, to_float, and to_number are removed.
The primitive class identifiers cannot be rebound, subclassed, or monkey-patched.

Migration Examples

Before	After
`kind(x)`	`x.class.name`
`kind(x) == "string"`	`x.class == String`
`len(items)`	`items.len()`
`string.blank(s)`	`s.blank?()`
`string.split(s, ",")`	`s.split(",")`
`array.map(items, fn)`	`items.map(fn)`
`dict.has(data, "name")`	`data.has("name")`
`to_string(value)`	`value.to_s()`

Verification

This release updates the Go compiler, C runtime, interpreter, self-hosted compiler sources, examples, stdlib modules, and test fixtures to the new method surface. The release gate is:

go test ./... -count=1