getProp.js
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'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
exports.default = getProp;
var _propName = require('./propName');
var _propName2 = _interopRequireDefault(_propName);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }
var DEFAULT_OPTIONS = {
ignoreCase: true
};
/**
* Returns the JSXAttribute itself or undefined, indicating the prop
* is not present on the JSXOpeningElement.
*
*/
function getProp() {
var props = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
var prop = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : DEFAULT_OPTIONS;
function getName(name) {
return options.ignoreCase ? name.toUpperCase() : name;
}
var propToFind = getName(prop);
function isPropToFind(property) {
return property.type === 'Property' && property.key.type === 'Identifier' && propToFind === getName(property.key.name);
}
var foundAttribute = props.find(function (attribute) {
// If the props contain a spread prop, try to find the property in the object expression.
if (attribute.type === 'JSXSpreadAttribute') {
return attribute.argument.type === 'ObjectExpression' && propToFind !== getName('key') // https://github.com/reactjs/rfcs/pull/107
&& attribute.argument.properties.some(isPropToFind);
}
return propToFind === getName((0, _propName2.default)(attribute));
});
if (foundAttribute && foundAttribute.type === 'JSXSpreadAttribute') {
return propertyToJSXAttribute(foundAttribute.argument.properties.find(isPropToFind));
}
return foundAttribute;
}
function propertyToJSXAttribute(node) {
var key = node.key,
value = node.value;
return _extends({
type: 'JSXAttribute',
name: _extends({ type: 'JSXIdentifier', name: key.name }, getBaseProps(key)),
value: value.type === 'Literal' ? adjustRangeOfNode(value) : _extends({ type: 'JSXExpressionContainer', expression: adjustExpressionRange(value) }, getBaseProps(value))
}, getBaseProps(node));
}
function adjustRangeOfNode(node) {
var _ref = node.range || [node.start, node.end],
_ref2 = _slicedToArray(_ref, 2),
start = _ref2[0],
end = _ref2[1];
return _extends({}, node, {
end: undefined,
range: [start, end],
start: undefined
});
}
function adjustExpressionRange(_ref3) {
var expressions = _ref3.expressions,
quasis = _ref3.quasis,
expression = _objectWithoutProperties(_ref3, ['expressions', 'quasis']);
return _extends({}, adjustRangeOfNode(expression), expressions ? { expressions: expressions.map(adjustRangeOfNode) } : {}, quasis ? { quasis: quasis.map(adjustRangeOfNode) } : {});
}
function getBaseProps(_ref4) {
var loc = _ref4.loc,
node = _objectWithoutProperties(_ref4, ['loc']);
var _adjustRangeOfNode = adjustRangeOfNode(node),
range = _adjustRangeOfNode.range;
return {
loc: getBaseLocation(loc),
range: range
};
}
function getBaseLocation(_ref5) {
var start = _ref5.start,
end = _ref5.end,
source = _ref5.source,
filename = _ref5.filename;
return _extends({
start: start,
end: end
}, source !== undefined ? { source: source } : {}, filename !== undefined ? { filename: filename } : {});
}