appblocks
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A lightweight javascript library for building micro apps for the front-end.
460 lines (446 loc) • 19.6 kB
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<h1><a href="index.html">All files</a> utils.js</h1>
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<span class="strong">89.83% </span>
<span class="quiet">Statements</span>
<span class='fraction'>53/59</span>
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<span class="strong">89.65% </span>
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<span class="strong">66.66% </span>
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<span class="strong">92.72% </span>
<span class="quiet">Lines</span>
<span class='fraction'>51/55</span>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">'use strict';
/*
Gets a property's value.
:keys = An array of keys to search for
:pointers = An object with keys that point to a specific variable / object
First search in pointers if pointers is defined. Then search in methods and lastly
search in the component itself. Go deeper, one key at a time until we reach the last
one or until we get an undefined value.
*/
import "core-js/modules/es.symbol.js";
import "core-js/modules/es.symbol.description.js";
import "core-js/modules/es.symbol.iterator.js";
import "core-js/modules/es.array.is-array.js";
import "core-js/modules/es.array.iterator.js";
import "core-js/modules/es.array.map.js";
import "core-js/modules/es.array.some.js";
import "core-js/modules/es.object.to-string.js";
import "core-js/modules/es.regexp.exec.js";
import "core-js/modules/es.string.iterator.js";
import "core-js/modules/es.string.match.js";
import "core-js/modules/web.dom-collections.iterator.js";
/* istanbul ignore next */
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
export var getProp = function getProp(comp, keys, pointers) {
var firstKey = keys[0];
var root = comp;
var prop;
if (pointers && firstKey in pointers) {
if (keys.length > 1) {
keys.shift();
root = pointers[firstKey];
} else {
return pointers[firstKey];
}
} else if (firstKey in comp.methods) {
keys.shift();
prop = comp.methods[firstKey](comp);
}
if (keys.length > 0) {
for (var i = 0; i < keys.length; i++) {
prop = getObjectFromKey(root, keys[i]);
if (prop === undefined) {
break;
} else {
root = prop;
}
}
}
return prop;
};
export var helpers = {
getNode: function <span class="fstat-no" title="function not covered" >getNode(</span>selectors) {
<span class="cstat-no" title="statement not covered" > return this.comp.el.querySelector(selectors);</span>
},
getNodes: function <span class="fstat-no" title="function not covered" >getNodes(</span>selectors) {
<span class="cstat-no" title="statement not covered" > return this.comp.el.querySelectorAll(selectors);</span>
},
appendIn: function <span class="fstat-no" title="function not covered" >appendIn(</span>HTML, node) {
<span class="cstat-no" title="statement not covered" > return node.innerHTML += HTML;</span>
},
prependIn: function <span class="fstat-no" title="function not covered" >prependIn(</span>HTML, node) {
<span class="cstat-no" title="statement not covered" > return node.innerHTML = HTML + node.innerHTML;</span>
}
};
// Small, commonly-used helpers for object inspection and manipulation
export var hasOwn = function hasOwn(obj, key) {
return Object.prototype.hasOwnProperty.call(obj, key);
};
export var isObject = function isObject(value) {
return value !== null && _typeof(value) === 'object' && !Array.isArray(value);
};
var _deepClone = function deepClone(value) {
if (Array.isArray(value)) {
return value.map(function (v) {
return _deepClone(v);
});
}
if (isObject(value)) {
var out = {};
for (var k in value) {
<span class="missing-if-branch" title="else path not taken" >E</span>if (Object.prototype.hasOwnProperty.call(value, k)) {
out[k] = _deepClone(value[k]);
}
}
return out;
}
return value;
};
// Expression safety utilities for c-if / c-ifnot directives
export { _deepClone as deepClone };
export var isBlockedExpression = function isBlockedExpression(expr) {
// Block dangerous tokens and constructs
var blockedPatterns = [/\bconstructor\b/, /\b__proto__\b/, /\beval\b/, /\bFunction\b/, /(?<![=!<>])=(?![=])/,
// assignment not part of == === != !==
/\+\+|--/, /\bnew\b/, /\bfunction\b/, /\bclass\b/, /=>/, /\bimport\b/, /\bawait\b/, /\byield\b/, /\btry\b|\bcatch\b|\bfinally\b/, /\bdelete\b/];
return blockedPatterns.some(function (pattern) {
return pattern.test(expr);
});
};
// Private functions ===================================================================================================
// Try to get the value of an object.
var getObjectFromKey = function getObjectFromKey(root, key) {
var prop = root[key];
if (prop === undefined) {
// If there is no value then check if the key uses the square brackets notation (ie: obj[key]) and try to retrieve
// a value this way.
var dKeys = key.match(/\[(.*?)\]/g);
if (dKeys) {
var dObjName = key.split('[')[0];
var dRoot = root[dObjName];
for (var i = 0; i < dKeys.length; i++) {
<span class="missing-if-branch" title="if path not taken" >I</span>if (i > 0) <span class="cstat-no" title="statement not covered" >dRoot = prop;</span>
var cleanedKey = dKeys[i].split('[')[1].split(']')[0];
prop = dRoot[cleanedKey];
<span class="missing-if-branch" title="if path not taken" >I</span>if (prop === undefined) <span class="cstat-no" title="statement not covered" >break;</span>
}
}
}
return prop;
};</pre></td></tr></table></pre>
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