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Legacy warnings 3.x #5474

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merged 10 commits into from
Feb 5, 2019
Merged

Legacy warnings 3.x #5474

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63dadbf
Add warning for undeclared properties used in bindings.
kevinpschaaf Jan 30, 2019
007f3cc
Add warning for redeclared computed properties.
kevinpschaaf Jan 30, 2019
563bc85
Fix lint warning
kevinpschaaf Jan 30, 2019
6bd15cc
Upgrade webcomponentsjs
kevinpschaaf Feb 1, 2019
35c48d8
Add warnings for disabling boolean settings.
kevinpschaaf Feb 1, 2019
9dea1f7
Clarify warning. Add comment.
kevinpschaaf Feb 1, 2019
28f2281
Remove addressed TODO comment.
kevinpschaaf Feb 1, 2019
c309fef
Upgrade wcjs
kevinpschaaf Feb 4, 2019
11cd9cb
Move undeclared property warning to element-mixin.
kevinpschaaf Feb 4, 2019
21e83e9
Remove unused import
kevinpschaaf Feb 4, 2019
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8 changes: 6 additions & 2 deletions lib/mixins/element-mixin.js
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Original file line number Diff line number Diff line change
Expand Up @@ -217,8 +217,12 @@ export const ElementMixin = dedupingMixin(base => {
// setup where multiple triggers for setting a property)
// While we do have `hasComputedEffect` this is set on the property's
// dependencies rather than itself.
if (info.computed && !proto._hasReadOnlyEffect(name)) {
proto._createComputedProperty(name, info.computed, allProps);
if (info.computed) {
if (proto._hasReadOnlyEffect(name)) {
console.warn(`Cannot redefine computed property '${name}'.`);
} else {
proto._createComputedProperty(name, info.computed, allProps);
}
}
if (info.readOnly && !proto._hasReadOnlyEffect(name)) {
proto._createReadOnlyProperty(name, !info.computed);
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5 changes: 4 additions & 1 deletion lib/mixins/property-effects.js
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Expand Up @@ -18,7 +18,7 @@ import { camelToDashCase, dashToCamelCase } from '../utils/case-map.js';
import { PropertyAccessors } from './property-accessors.js';
/* for annotated effects */
import { TemplateStamp } from './template-stamp.js';
import { sanitizeDOMValue } from '../utils/settings.js';
import { sanitizeDOMValue, legacyOptimizations } from '../utils/settings.js';

// Monotonically increasing unique ID used for de-duping effects triggered
// from multiple properties in the same turn
Expand Down Expand Up @@ -2390,6 +2390,9 @@ export const PropertyEffects = dedupingMixin(superClass => {
* @protected
*/
static _addTemplatePropertyEffect(templateInfo, prop, effect) {
if (legacyOptimizations && !(prop in templateInfo.dynamicFns)) {
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console.warn(`Property '${prop}' used in template but not declared in 'properties'.`);
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Suggested change
console.warn(`Property '${prop}' used in template but not declared in 'properties'.`);
console.warn(`Property '${prop}' used in template but not declared in 'properties'. Setting an attribute will not set the corresponding property unless the property is declared in 'properties'.`;

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Done

}
let hostProps = templateInfo.hostProps = templateInfo.hostProps || {};
hostProps[prop] = true;
let effects = templateInfo.propertyEffects = templateInfo.propertyEffects || {};
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