lit-analyzer
Version:
CLI that type checks bindings in lit-html templates
47 lines (46 loc) • 2.59 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
var constants_js_1 = require("../analyze/constants.js");
var html_node_attr_assignment_types_js_1 = require("../analyze/types/html-node/html-node-attr-assignment-types.js");
var extract_binding_types_js_1 = require("./util/type/extract-binding-types.js");
var is_assignable_in_attribute_binding_js_1 = require("./util/type/is-assignable-in-attribute-binding.js");
var is_assignable_in_boolean_binding_js_1 = require("./util/type/is-assignable-in-boolean-binding.js");
var is_assignable_in_property_binding_js_1 = require("./util/type/is-assignable-in-property-binding.js");
var is_assignable_in_element_binding_js_1 = require("./util/type/is-assignable-in-element-binding.js");
/**
* This rule validate if the types of a binding are assignable.
*/
var rule = {
id: "no-incompatible-type-binding",
meta: {
priority: "low"
},
visitHtmlAssignment: function (assignment, context) {
var htmlAttr = assignment.htmlAttr;
if (assignment.kind === html_node_attr_assignment_types_js_1.HtmlNodeAttrAssignmentKind.ELEMENT_EXPRESSION) {
// For element bindings we only care about the expression type
var typeB_1 = (0, extract_binding_types_js_1.extractBindingTypes)(assignment, context).typeB;
(0, is_assignable_in_element_binding_js_1.isAssignableInElementBinding)(htmlAttr, typeB_1, context);
}
if (context.htmlStore.getHtmlAttrTarget(htmlAttr) == null) {
return;
}
var _a = (0, extract_binding_types_js_1.extractBindingTypes)(assignment, context), typeA = _a.typeA, typeB = _a.typeB;
// Validate types based on the binding in which they appear
switch (htmlAttr.modifier) {
case constants_js_1.LIT_HTML_BOOLEAN_ATTRIBUTE_MODIFIER:
(0, is_assignable_in_boolean_binding_js_1.isAssignableInBooleanBinding)(htmlAttr, { typeA: typeA, typeB: typeB }, context);
break;
case constants_js_1.LIT_HTML_PROP_ATTRIBUTE_MODIFIER:
(0, is_assignable_in_property_binding_js_1.isAssignableInPropertyBinding)(htmlAttr, { typeA: typeA, typeB: typeB }, context);
break;
case constants_js_1.LIT_HTML_EVENT_LISTENER_ATTRIBUTE_MODIFIER:
break;
default: {
(0, is_assignable_in_attribute_binding_js_1.isAssignableInAttributeBinding)(htmlAttr, { typeA: typeA, typeB: typeB }, context);
break;
}
}
}
};
exports.default = rule;