Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 67690x 67690x 67690x 10068x 10068x 10068x 2023x 1014x 1014x 2023x 10068x 10068x 67690x 57622x 57622x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 8151x 64x 64x 8151x 147x 98x 98x 147x 147x 147x 147x 147x 147x 147x 147x 147x 12x 12x 12x 12x 12x 147x 147x 147x 147x 8151x 2403x 2403x 143x 143x 143x 143x 2403x 2403x 107x 107x 2403x 2403x 2403x 2403x 2403x 2403x 2403x 35x 35x 2403x 2403x 2403x 141x 141x 141x 141x 141x 133x 1x 1x 1x 1x 133x 126x 126x 133x 14x 141x 6x 6x 6x 8x 8x 2403x 2403x 2403x 2403x 8151x 2403x 2403x 2404x 104x 104x 104x 104x 38x 12x 12x 38x 104x 104x 104x 104x 104x 104x 104x 104x 104x 104x 104x 104x 2403x 2403x 1662x 1931x 1931x 1931x 1931x 1931x 1931x 1931x 1931x 1931x 1931x 1931x 1931x 1931x 1662x 2403x 2403x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 2403x 138x 138x 2403x 2403x 2403x 2403x 2403x 2403x 2403x 2403x 2403x 2403x 2404x 2404x 2404x 2404x 2404x 1842x 1842x 124x 124x 124x 124x 124x 124x 124x 124x 124x 124x 124x 1842x 2403x 2404x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 2403x 2403x 2403x 2404x 2404x 2404x 2404x 2404x 1423x 1423x 1423x 1423x 1423x 1423x 1423x 1423x 2403x 2403x 9x 9x 36x 36x 9x 9x 9x 9x 9x 9x 9x 9x 9x 9x 9x 9x 2403x 2404x 24x 24x 24x 24x 24x 24x 24x 24x 24x 24x 24x 24x 24x 24x 24x 2403x 2403x 3x 3x 2403x 2403x 2403x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 2404x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 2403x 2392x 2392x 2403x 2403x 138x 138x 138x 138x 138x 138x 138x 138x 138x 138x 2403x 2403x 2403x 2403x 2403x 2403x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 2403x 138x 138x 2403x 2403x 178x 178x 178x 178x 2403x 2403x 2403x 2403x 2403x 2403x 2403x 2403x 2403x 2x 2x 2x 2x 2x 2x 2x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x | /** @import * as ESTree from 'estree' */
/** @import { ValidatedCompileOptions, AST, ValidatedModuleCompileOptions, SvelteNode } from '#compiler' */
/** @import { ComponentAnalysis, Analysis } from '../../types' */
/** @import { Visitors, ComponentClientTransformState, ClientTransformState } from './types' */
import { walk } from 'zimmerframe';
import * as b from '../../../utils/builders.js';
import { build_getter } from './utils.js';
import { render_stylesheet } from '../css/index.js';
import { dev, filename } from '../../../state.js';
import { AnimateDirective } from './visitors/AnimateDirective.js';
import { ArrowFunctionExpression } from './visitors/ArrowFunctionExpression.js';
import { AssignmentExpression } from './visitors/AssignmentExpression.js';
import { Attribute } from './visitors/Attribute.js';
import { AwaitBlock } from './visitors/AwaitBlock.js';
import { BinaryExpression } from './visitors/BinaryExpression.js';
import { BindDirective } from './visitors/BindDirective.js';
import { BlockStatement } from './visitors/BlockStatement.js';
import { BreakStatement } from './visitors/BreakStatement.js';
import { CallExpression } from './visitors/CallExpression.js';
import { ClassBody } from './visitors/ClassBody.js';
import { Comment } from './visitors/Comment.js';
import { Component } from './visitors/Component.js';
import { ConstTag } from './visitors/ConstTag.js';
import { DebugTag } from './visitors/DebugTag.js';
import { EachBlock } from './visitors/EachBlock.js';
import { ExportNamedDeclaration } from './visitors/ExportNamedDeclaration.js';
import { ExpressionStatement } from './visitors/ExpressionStatement.js';
import { Fragment } from './visitors/Fragment.js';
import { FunctionDeclaration } from './visitors/FunctionDeclaration.js';
import { FunctionExpression } from './visitors/FunctionExpression.js';
import { HtmlTag } from './visitors/HtmlTag.js';
import { Identifier } from './visitors/Identifier.js';
import { IfBlock } from './visitors/IfBlock.js';
import { ImportDeclaration } from './visitors/ImportDeclaration.js';
import { KeyBlock } from './visitors/KeyBlock.js';
import { LabeledStatement } from './visitors/LabeledStatement.js';
import { LetDirective } from './visitors/LetDirective.js';
import { MemberExpression } from './visitors/MemberExpression.js';
import { OnDirective } from './visitors/OnDirective.js';
import { Program } from './visitors/Program.js';
import { RegularElement } from './visitors/RegularElement.js';
import { RenderTag } from './visitors/RenderTag.js';
import { SlotElement } from './visitors/SlotElement.js';
import { SnippetBlock } from './visitors/SnippetBlock.js';
import { SpreadAttribute } from './visitors/SpreadAttribute.js';
import { SvelteBody } from './visitors/SvelteBody.js';
import { SvelteComponent } from './visitors/SvelteComponent.js';
import { SvelteDocument } from './visitors/SvelteDocument.js';
import { SvelteElement } from './visitors/SvelteElement.js';
import { SvelteFragment } from './visitors/SvelteFragment.js';
import { SvelteHead } from './visitors/SvelteHead.js';
import { SvelteSelf } from './visitors/SvelteSelf.js';
import { SvelteWindow } from './visitors/SvelteWindow.js';
import { TitleElement } from './visitors/TitleElement.js';
import { TransitionDirective } from './visitors/TransitionDirective.js';
import { UpdateExpression } from './visitors/UpdateExpression.js';
import { UseDirective } from './visitors/UseDirective.js';
import { VariableDeclaration } from './visitors/VariableDeclaration.js';
/** @type {Visitors} */
const visitors = {
_: function set_scope(node, { next, state }) {
const scope = state.scopes.get(node);
if (scope && scope !== state.scope) {
const transform = { ...state.transform };
for (const [name, binding] of scope.declarations) {
if (binding.kind === 'normal') {
delete transform[name];
}
}
next({ ...state, transform, scope });
} else {
next();
}
},
AnimateDirective,
ArrowFunctionExpression,
AssignmentExpression,
Attribute,
AwaitBlock,
BinaryExpression,
BindDirective,
BlockStatement,
BreakStatement,
CallExpression,
ClassBody,
Comment,
Component,
ConstTag,
DebugTag,
EachBlock,
ExportNamedDeclaration,
ExpressionStatement,
Fragment,
FunctionDeclaration,
FunctionExpression,
HtmlTag,
Identifier,
IfBlock,
ImportDeclaration,
KeyBlock,
LabeledStatement,
LetDirective,
MemberExpression,
OnDirective,
Program,
RegularElement,
RenderTag,
SlotElement,
SnippetBlock,
SpreadAttribute,
SvelteBody,
SvelteComponent,
SvelteDocument,
SvelteElement,
SvelteFragment,
SvelteHead,
SvelteSelf,
SvelteWindow,
TitleElement,
TransitionDirective,
UpdateExpression,
UseDirective,
VariableDeclaration
};
/**
* @param {ComponentAnalysis} analysis
* @param {ValidatedCompileOptions} options
* @returns {ESTree.Program}
*/
export function client_component(analysis, options) {
/** @type {ComponentClientTransformState} */
const state = {
analysis,
options,
scope: analysis.module.scope,
scopes: analysis.module.scopes,
is_instance: false,
hoisted: [b.import_all('$', 'svelte/internal/client')],
node: /** @type {any} */ (null), // populated by the root node
legacy_reactive_imports: [],
legacy_reactive_statements: new Map(),
metadata: {
context: {
template_needs_import_node: false,
template_contains_script_tag: false
},
namespace: options.namespace,
bound_contenteditable: false
},
events: new Set(),
preserve_whitespace: options.preserveWhitespace,
public_state: new Map(),
private_state: new Map(),
transform: {},
in_constructor: false,
// these are set inside the `Fragment` visitor, and cannot be used until then
before_init: /** @type {any} */ (null),
init: /** @type {any} */ (null),
update: /** @type {any} */ (null),
after_update: /** @type {any} */ (null),
template: /** @type {any} */ (null),
locations: /** @type {any} */ (null)
};
const module = /** @type {ESTree.Program} */ (
walk(/** @type {SvelteNode} */ (analysis.module.ast), state, visitors)
);
const instance_state = {
...state,
transform: { ...state.transform },
scope: analysis.instance.scope,
scopes: analysis.instance.scopes,
is_instance: true
};
const instance = /** @type {ESTree.Program} */ (
walk(/** @type {SvelteNode} */ (analysis.instance.ast), instance_state, visitors)
);
const template = /** @type {ESTree.Program} */ (
walk(
/** @type {SvelteNode} */ (analysis.template.ast),
{
...state,
transform: instance_state.transform,
scope: analysis.instance.scope,
scopes: analysis.template.scopes
},
visitors
)
);
module.body.unshift(...state.legacy_reactive_imports);
/** @type {ESTree.Statement[]} */
const store_setup = [];
/** @type {ESTree.VariableDeclaration[]} */
const legacy_reactive_declarations = [];
for (const [name, binding] of analysis.instance.scope.declarations) {
if (binding.kind === 'legacy_reactive') {
legacy_reactive_declarations.push(b.const(name, b.call('$.mutable_state')));
}
if (binding.kind === 'store_sub') {
if (store_setup.length === 0) {
store_setup.push(b.const('$$stores', b.call('$.setup_stores')));
}
// We're creating an arrow function that gets the store value which minifies better for two or more references
const store_reference = build_getter(b.id(name.slice(1)), instance_state);
const store_get = b.call('$.store_get', store_reference, b.literal(name), b.id('$$stores'));
store_setup.push(
b.const(
binding.node,
dev
? b.thunk(
b.sequence([
b.call('$.validate_store', store_reference, b.literal(name.slice(1))),
store_get
])
)
: b.thunk(store_get)
)
);
}
}
for (const [node] of analysis.reactive_statements) {
const statement = [...state.legacy_reactive_statements].find(([n]) => n === node);
if (statement === undefined) {
throw new Error('Could not find reactive statement');
}
instance.body.push(statement[1]);
}
if (analysis.reactive_statements.size > 0) {
instance.body.push(b.stmt(b.call('$.legacy_pre_effect_reset')));
}
/**
* Used to store the group nodes
* @type {ESTree.VariableDeclaration[]}
*/
const group_binding_declarations = [];
for (const group of analysis.binding_groups.values()) {
group_binding_declarations.push(b.const(group.name, b.array([])));
}
/** @type {Array<ESTree.Property | ESTree.SpreadElement>} */
const component_returned_object = analysis.exports.flatMap(({ name, alias }) => {
const binding = instance_state.scope.get(name);
const expression = build_getter(b.id(name), instance_state);
const getter = b.get(alias ?? name, [b.return(expression)]);
if (expression.type === 'Identifier') {
if (binding?.declaration_kind === 'let' || binding?.declaration_kind === 'var') {
return [
getter,
b.set(alias ?? name, [b.stmt(b.assignment('=', expression, b.id('$$value')))])
];
} else if (!dev) {
return b.init(alias ?? name, expression);
}
}
if (binding?.kind === 'state' || binding?.kind === 'raw_state') {
const value = binding.kind === 'state' ? b.call('$.proxy', b.id('$$value')) : b.id('$$value');
return [getter, b.set(alias ?? name, [b.stmt(b.call('$.set', b.id(name), value))])];
}
return getter;
});
const properties = [...analysis.instance.scope.declarations].filter(
([name, binding]) =>
(binding.kind === 'prop' || binding.kind === 'bindable_prop') && !name.startsWith('$$')
);
if (dev && analysis.runes) {
const exports = analysis.exports.map(({ name, alias }) => b.literal(alias ?? name));
/** @type {ESTree.Literal[]} */
const bindable = [];
for (const [name, binding] of properties) {
if (binding.kind === 'bindable_prop') {
bindable.push(b.literal(binding.prop_alias ?? name));
}
}
instance.body.unshift(
b.stmt(
b.call(
'$.validate_prop_bindings',
b.id('$$props'),
b.array(bindable),
b.array(exports),
b.id(`${analysis.name}`)
)
)
);
}
if (analysis.accessors) {
for (const [name, binding] of properties) {
const key = binding.prop_alias ?? name;
const getter = b.get(key, [b.return(b.call(b.id(name)))]);
const setter = b.set(key, [
b.stmt(b.call(b.id(name), b.id('$$value'))),
b.stmt(b.call('$.flush_sync'))
]);
if (analysis.runes && binding.initial) {
// turn `set foo($$value)` into `set foo($$value = expression)`
setter.value.params[0] = {
type: 'AssignmentPattern',
left: b.id('$$value'),
right: /** @type {ESTree.Expression} */ (binding.initial)
};
}
component_returned_object.push(getter, setter);
}
}
if (options.compatibility.componentApi === 4) {
component_returned_object.push(
b.init('$set', b.id('$.update_legacy_props')),
b.init(
'$on',
b.arrow(
[b.id('$$event_name'), b.id('$$event_cb')],
b.call(
'$.add_legacy_event_listener',
b.id('$$props'),
b.id('$$event_name'),
b.id('$$event_cb')
)
)
)
);
} else if (dev) {
component_returned_object.push(b.spread(b.call(b.id('$.legacy_api'))));
}
const push_args = [b.id('$$props'), b.literal(analysis.runes)];
if (dev) push_args.push(b.id(analysis.name));
const component_block = b.block([
...store_setup,
...legacy_reactive_declarations,
...group_binding_declarations,
...analysis.top_level_snippets,
.../** @type {ESTree.Statement[]} */ (instance.body),
analysis.runes || !analysis.needs_context ? b.empty : b.stmt(b.call('$.init')),
.../** @type {ESTree.Statement[]} */ (template.body)
]);
if (!analysis.runes) {
// Bind static exports to props so that people can access them with bind:x
for (const { name, alias } of analysis.exports) {
component_block.body.push(
b.stmt(
b.call(
'$.bind_prop',
b.id('$$props'),
b.literal(alias ?? name),
build_getter(b.id(name), instance_state)
)
)
);
}
}
if (analysis.css.ast !== null && analysis.inject_styles) {
const hash = b.literal(analysis.css.hash);
const code = b.literal(render_stylesheet(analysis.source, analysis, options).code);
state.hoisted.push(b.const('$$css', b.object([b.init('hash', hash), b.init('code', code)])));
component_block.body.unshift(
b.stmt(
b.call('$.append_styles', b.id('$$anchor'), b.id('$$css'), options.customElement && b.true)
)
);
}
const should_inject_context =
dev ||
analysis.needs_context ||
analysis.reactive_statements.size > 0 ||
component_returned_object.length > 0;
if (should_inject_context) {
component_block.body.unshift(b.stmt(b.call('$.push', ...push_args)));
component_block.body.push(
component_returned_object.length > 0
? b.return(b.call('$.pop', b.object(component_returned_object)))
: b.stmt(b.call('$.pop'))
);
}
if (analysis.uses_rest_props) {
const named_props = analysis.exports.map(({ name, alias }) => alias ?? name);
for (const [name, binding] of analysis.instance.scope.declarations) {
if (binding.kind === 'bindable_prop') named_props.push(binding.prop_alias ?? name);
}
component_block.body.unshift(
b.const(
'$$restProps',
b.call(
'$.legacy_rest_props',
b.id('$$sanitized_props'),
b.array(named_props.map((name) => b.literal(name)))
)
)
);
}
if (analysis.uses_props || analysis.uses_rest_props) {
const to_remove = [
b.literal('children'),
b.literal('$$slots'),
b.literal('$$events'),
b.literal('$$legacy')
];
if (analysis.custom_element) {
to_remove.push(b.literal('$$host'));
}
component_block.body.unshift(
b.const(
'$$sanitized_props',
b.call('$.legacy_rest_props', b.id('$$props'), b.array(to_remove))
)
);
}
if (analysis.uses_slots) {
component_block.body.unshift(b.const('$$slots', b.call('$.sanitize_slots', b.id('$$props'))));
}
let should_inject_props =
should_inject_context ||
analysis.needs_props ||
analysis.uses_props ||
analysis.uses_rest_props ||
analysis.uses_slots ||
analysis.slot_names.size > 0;
const body = [...module.body, ...state.hoisted];
const component = b.function_declaration(
b.id(analysis.name),
should_inject_props ? [b.id('$$anchor'), b.id('$$props')] : [b.id('$$anchor')],
component_block
);
if (options.hmr) {
const id = b.id(analysis.name);
const HMR = b.id('$.HMR');
const existing = b.member(id, HMR, true);
const incoming = b.member(b.id('module.default'), HMR, true);
const accept_fn_body = [
b.stmt(b.assignment('=', b.member(incoming, 'source'), b.member(existing, 'source'))),
b.stmt(b.call('$.set', b.member(existing, 'source'), b.member(incoming, 'original')))
];
if (analysis.css.hash) {
// remove existing `<style>` element, in case CSS changed
accept_fn_body.unshift(
b.stmt(
b.call(
b.member(
b.call('document.querySelector', b.literal('#' + analysis.css.hash)),
'remove',
false,
true
)
)
)
);
}
const hmr = b.block([
b.stmt(b.assignment('=', id, b.call('$.hmr', id, b.thunk(b.member(existing, 'source'))))),
b.stmt(b.call('import.meta.hot.accept', b.arrow([b.id('module')], b.block(accept_fn_body))))
]);
body.push(component, b.if(b.id('import.meta.hot'), hmr), b.export_default(b.id(analysis.name)));
} else {
body.push(b.export_default(component));
}
if (dev) {
// add `App[$.FILENAME] = 'App.svelte'` so that we can print useful messages later
body.unshift(
b.stmt(
b.assignment('=', b.member(b.id(analysis.name), '$.FILENAME', true), b.literal(filename))
)
);
body.unshift(b.stmt(b.call(b.id('$.mark_module_start'))));
body.push(b.stmt(b.call(b.id('$.mark_module_end'), b.id(analysis.name))));
}
if (options.discloseVersion) {
body.unshift(b.imports([], 'svelte/internal/disclose-version'));
}
if (options.compatibility.componentApi === 4) {
body.unshift(b.imports([['createClassComponent', '$$_createClassComponent']], 'svelte/legacy'));
component_block.body.unshift(
b.if(
b.id('new.target'),
b.return(
b.call(
'$$_createClassComponent',
// When called with new, the first argument is the constructor options
b.object([b.init('component', b.id(analysis.name)), b.spread(b.id('$$anchor'))])
)
)
)
);
} else if (dev) {
component_block.body.unshift(b.stmt(b.call('$.check_target', b.id('new.target'))));
}
if (state.events.size > 0) {
body.push(
b.stmt(b.call('$.delegate', b.array(Array.from(state.events).map((name) => b.literal(name)))))
);
}
if (analysis.custom_element) {
const ce = analysis.custom_element;
/** @type {ESTree.Property[]} */
const props_str = [];
for (const [name, binding] of properties) {
const key = binding.prop_alias ?? name;
const prop_def = typeof ce === 'boolean' ? {} : ce.props?.[key] || {};
if (
!prop_def.type &&
binding.initial?.type === 'Literal' &&
typeof binding.initial.value === 'boolean'
) {
prop_def.type = 'Boolean';
}
const value = b.object(
/** @type {ESTree.Property[]} */ (
[
prop_def.attribute ? b.init('attribute', b.literal(prop_def.attribute)) : undefined,
prop_def.reflect ? b.init('reflect', b.literal(true)) : undefined,
prop_def.type ? b.init('type', b.literal(prop_def.type)) : undefined
].filter(Boolean)
)
);
props_str.push(b.init(key, value));
}
const slots_str = b.array([...analysis.slot_names.keys()].map((name) => b.literal(name)));
const accessors_str = b.array(
analysis.exports.map(({ name, alias }) => b.literal(alias ?? name))
);
const use_shadow_dom = typeof ce === 'boolean' || ce.shadow !== 'none' ? true : false;
const create_ce = b.call(
'$.create_custom_element',
b.id(analysis.name),
b.object(props_str),
slots_str,
accessors_str,
b.literal(use_shadow_dom),
/** @type {any} */ (typeof ce !== 'boolean' ? ce.extend : undefined)
);
// If a tag name is provided, call `customElements.define`, otherwise leave to the user
if (typeof ce !== 'boolean' && typeof ce.tag === 'string') {
const define = b.stmt(b.call('customElements.define', b.literal(ce.tag), create_ce));
if (options.hmr) {
body.push(
b.if(b.binary('==', b.call('customElements.get', b.literal(ce.tag)), b.null), define)
);
} else {
body.push(define);
}
} else {
body.push(b.stmt(create_ce));
}
}
return {
type: 'Program',
sourceType: 'module',
body
};
}
/**
* @param {Analysis} analysis
* @param {ValidatedModuleCompileOptions} options
* @returns {ESTree.Program}
*/
export function client_module(analysis, options) {
/** @type {ClientTransformState} */
const state = {
analysis,
options,
scope: analysis.module.scope,
scopes: analysis.module.scopes,
public_state: new Map(),
private_state: new Map(),
transform: {},
in_constructor: false
};
const module = /** @type {ESTree.Program} */ (
walk(/** @type {SvelteNode} */ (analysis.module.ast), state, visitors)
);
return {
type: 'Program',
sourceType: 'module',
body: [b.import_all('$', 'svelte/internal/client'), ...module.body]
};
}
|