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feat(lang): UI components as files - component Name { ... } beside Name.xml and Name.lss

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The compiler turns a component declaration into:
- a record of its props and state;
- a constructor, a props setter, a model and a call;
- a class, registered with ludic.ui at start.

Its template and styles are read from beside it and compiled in, with @import inlined, and a
missing template fails the build.

In the runtime:
- each mounted instance keeps its own props and state, and `set` in a template writes the state;
- styles are scoped to the component;
- class, style and id on a component's tag land on its root, styled by the parent's sheet too;
- ui_reload re-reads a component's files from disk and keeps instances.

The package's own module is now ludic_ui, so a program may call a directory of its own ui.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-24 16:50:12 +03:00
parent 637d07400e
commit 20d011f8e9
40 changed files with 62224 additions and 49996 deletions
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11
packages/ludic.ui/cascade.ludic
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@ -18,7 +18,9 @@ function cs_tree(n: UiNode) -> void {
function cs_node(n: UiNode) -> void {
cs_sheet(n, ua_sheet())
if n.sheet != null { cs_sheet(n, n.sheet) }
if n.sheet2 != null and n.sheet2 != n.sheet { cs_sheet(n, n.sheet2) }
if n.style != null { cs_rule(n, n.style) }
if n.style2 != null { cs_rule_in(n, n.style2, n.env2) }
for i in 0 .. len(n.akeys) { el_apply(n, n.akeys[i], n.vals[i]) }
}
function cs_sheet(n: UiNode, sh: UiSheet) -> void {
@ -27,13 +29,14 @@ function cs_sheet(n: UiNode, sh: UiSheet) -> void {
if md_ok(r) and sel_match(r.sel, n) { cs_rule(n, r) }
}
}
# a rule's custom properties first, so its other declarations can read them
function cs_rule(n: UiNode, r: UiRule) -> void {
function cs_rule(n: UiNode, r: UiRule) -> void { cs_rule_in(n, r, n.env) }
# a rule's custom properties first, so its other declarations can read them; values read in `e`
function cs_rule_in(n: UiNode, r: UiRule, e: UiEnv) -> void {
for j in 0 .. len(r.keys) {
if len(r.keys[j]) > 2 and r.keys[j][0..2] == "--" { el_attr(n, r.keys[j], ui_eval(r.vals[j], n.env)) }
if len(r.keys[j]) > 2 and r.keys[j][0..2] == "--" { el_attr(n, r.keys[j], ui_eval(r.vals[j], e)) }
}
for j in 0 .. len(r.keys) {
if not (len(r.keys[j]) > 2 and r.keys[j][0..2] == "--") { el_attr(n, r.keys[j], ui_eval(r.vals[j], n.env)) }
if not (len(r.keys[j]) > 2 and r.keys[j][0..2] == "--") { el_attr(n, r.keys[j], ui_eval(r.vals[j], e)) }
}
}
# what every element looks like before anyone styles it, as a browser's own sheet does