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add 20 browser API builtins to JS runtime and codegen preamble

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Iteration 3: closes the browser API gap needed for real web pages.

New builtins in el_runtime.js:
  Extended DOM: dom_set_attr, dom_get_attr, dom_remove_attr, dom_set_html,
    dom_get_html, dom_get_parent, dom_contains_class, dom_get_checked,
    dom_set_checked
  Timers: set_timeout, set_interval, clear_interval
  Local storage: local_storage_get, local_storage_set, local_storage_remove
  Window: window_location, window_redirect, window_on_load
  Debug: console_log

All browser-only functions use _ensureBrowser guard. Timer functions
work in both Node and browser. All new names added to __el export
object, ES named exports, and codegen-js.el destructure preamble.
Spec table updated to document new categories.
This commit is contained in:
Will Anderson
2026-05-04 10:38:20 -05:00
parent 7376349124
commit 437ba0a4dd
4 changed files with 147 additions and 0 deletions
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spec/codegen-js.md
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@@ -79,6 +79,11 @@ Same function names as `el_runtime.c` wherever possible, so codegen-js can emit
| `state_*` | In-memory `Map` keyed by string |
| `env` | `process.env[k]` in Node, throws in browser |
| DOM bridge (Phase 3) | `dom_get_element`, `dom_get_value`, `dom_set_value`, `dom_get_text`, `dom_set_text`, `dom_set_prop`, `dom_get_prop`, `dom_set_style`, `dom_add_class`, `dom_remove_class`, `dom_show`, `dom_hide`, `dom_listen`, `dom_query`, `dom_query_all`, `dom_create`, `dom_append`, `dom_remove`, `dom_is_null` (browser-only; throw in Node) |
| DOM extended (Phase 4) | `dom_set_attr`, `dom_get_attr`, `dom_remove_attr`, `dom_set_html`, `dom_get_html`, `dom_get_parent`, `dom_contains_class`, `dom_get_checked`, `dom_set_checked` (browser-only) |
| Timers | `set_timeout(ms, cb)`, `set_interval(ms, cb) -> Int`, `clear_interval(handle)` (browser + Node) |
| Local storage | `local_storage_get(key)`, `local_storage_set(key, val)`, `local_storage_remove(key)` (browser-only) |
| Window location | `window_location() -> String`, `window_redirect(url)`, `window_on_load(cb)` (browser-only) |
| Debug | `console_log(msg)` -- explicit console.log, separate from println |
| Window export | `window_set(name, val)`, `window_get(name)` — expose/retrieve values on `window` (or `globalThis` in Node) |
| native_js escape hatch | `native_js(code)` — evaluates a JS expression via `eval`; `native_js_call(obj, method, args)` — calls a method on an object. Use for third-party browser libraries until proper bindings exist |