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4 years ago
'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
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 = extract;
exports.extractLiteral = extractLiteral;
var _Literal = require('../Literal');
var _Literal2 = _interopRequireDefault(_Literal);
var _JSXElement = require('../JSXElement');
var _JSXElement2 = _interopRequireDefault(_JSXElement);
var _Identifier = require('./Identifier');
var _Identifier2 = _interopRequireDefault(_Identifier);
var _TaggedTemplateExpression = require('./TaggedTemplateExpression');
var _TaggedTemplateExpression2 = _interopRequireDefault(_TaggedTemplateExpression);
var _TemplateLiteral = require('./TemplateLiteral');
var _TemplateLiteral2 = _interopRequireDefault(_TemplateLiteral);
var _FunctionExpression = require('./FunctionExpression');
var _FunctionExpression2 = _interopRequireDefault(_FunctionExpression);
var _LogicalExpression = require('./LogicalExpression');
var _LogicalExpression2 = _interopRequireDefault(_LogicalExpression);
var _MemberExpression = require('./MemberExpression');
var _MemberExpression2 = _interopRequireDefault(_MemberExpression);
var _OptionalCallExpression = require('./OptionalCallExpression');
var _OptionalCallExpression2 = _interopRequireDefault(_OptionalCallExpression);
var _OptionalMemberExpression = require('./OptionalMemberExpression');
var _OptionalMemberExpression2 = _interopRequireDefault(_OptionalMemberExpression);
var _CallExpression = require('./CallExpression');
var _CallExpression2 = _interopRequireDefault(_CallExpression);
var _UnaryExpression = require('./UnaryExpression');
var _UnaryExpression2 = _interopRequireDefault(_UnaryExpression);
var _ThisExpression = require('./ThisExpression');
var _ThisExpression2 = _interopRequireDefault(_ThisExpression);
var _ConditionalExpression = require('./ConditionalExpression');
var _ConditionalExpression2 = _interopRequireDefault(_ConditionalExpression);
var _BinaryExpression = require('./BinaryExpression');
var _BinaryExpression2 = _interopRequireDefault(_BinaryExpression);
var _ObjectExpression = require('./ObjectExpression');
var _ObjectExpression2 = _interopRequireDefault(_ObjectExpression);
var _NewExpression = require('./NewExpression');
var _NewExpression2 = _interopRequireDefault(_NewExpression);
var _UpdateExpression = require('./UpdateExpression');
var _UpdateExpression2 = _interopRequireDefault(_UpdateExpression);
var _ArrayExpression = require('./ArrayExpression');
var _ArrayExpression2 = _interopRequireDefault(_ArrayExpression);
var _BindExpression = require('./BindExpression');
var _BindExpression2 = _interopRequireDefault(_BindExpression);
var _SpreadElement = require('./SpreadElement');
var _SpreadElement2 = _interopRequireDefault(_SpreadElement);
var _TypeCastExpression = require('./TypeCastExpression');
var _TypeCastExpression2 = _interopRequireDefault(_TypeCastExpression);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
// Composition map of types to their extractor functions.
var TYPES = {
Identifier: _Identifier2.default,
Literal: _Literal2.default,
JSXElement: _JSXElement2.default,
TaggedTemplateExpression: _TaggedTemplateExpression2.default,
TemplateLiteral: _TemplateLiteral2.default,
ArrowFunctionExpression: _FunctionExpression2.default,
FunctionExpression: _FunctionExpression2.default,
LogicalExpression: _LogicalExpression2.default,
MemberExpression: _MemberExpression2.default,
OptionalCallExpression: _OptionalCallExpression2.default,
OptionalMemberExpression: _OptionalMemberExpression2.default,
CallExpression: _CallExpression2.default,
UnaryExpression: _UnaryExpression2.default,
ThisExpression: _ThisExpression2.default,
ConditionalExpression: _ConditionalExpression2.default,
BinaryExpression: _BinaryExpression2.default,
ObjectExpression: _ObjectExpression2.default,
NewExpression: _NewExpression2.default,
UpdateExpression: _UpdateExpression2.default,
ArrayExpression: _ArrayExpression2.default,
BindExpression: _BindExpression2.default,
SpreadElement: _SpreadElement2.default,
TypeCastExpression: _TypeCastExpression2.default
};
var noop = function noop() {
return null;
};
var errorMessage = function errorMessage(expression) {
return 'The prop value with an expression type of ' + expression + ' could not be resolved. Please file issue to get this fixed immediately.';
};
/**
* This function maps an AST value node
* to its correct extractor function for its
* given type.
*
* This will map correctly for *all* possible expression types.
*
* @param - value - AST Value object with type `JSXExpressionContainer`
* @returns The extracted value.
*/
function extract(value) {
// Value will not have the expression property when we recurse.
// The type for expression on ArrowFunctionExpression is a boolean.
var expression = void 0;
if (typeof value.expression !== 'boolean' && value.expression) {
expression = value.expression; // eslint-disable-line prefer-destructuring
} else {
expression = value;
}
var _expression = expression,
type = _expression.type;
while (type === 'TSNonNullExpression' || type === 'TSAsExpression') {
var _expression2 = expression;
type = _expression2.type;
if (expression.expression) {
var _expression3 = expression;
expression = _expression3.expression;
}
}
if (TYPES[type] === undefined) {
// eslint-disable-next-line no-console
console.error(errorMessage(type));
return null;
}
return TYPES[type](expression);
}
// Composition map of types to their extractor functions to handle literals.
var LITERAL_TYPES = _extends({}, TYPES, {
Literal: function Literal(value) {
var extractedVal = TYPES.Literal.call(undefined, value);
var isNull = extractedVal === null;
// This will be convention for attributes that have null
// value explicitly defined (<div prop={null} /> maps to 'null').
return isNull ? 'null' : extractedVal;
},
Identifier: function Identifier(value) {
var isUndefined = TYPES.Identifier.call(undefined, value) === undefined;
return isUndefined ? undefined : null;
},
JSXElement: noop,
ArrowFunctionExpression: noop,
FunctionExpression: noop,
LogicalExpression: noop,
MemberExpression: noop,
OptionalCallExpression: noop,
OptionalMemberExpression: noop,
CallExpression: noop,
UnaryExpression: function UnaryExpression(value) {
var extractedVal = TYPES.UnaryExpression.call(undefined, value);
return extractedVal === undefined ? null : extractedVal;
},
UpdateExpression: function UpdateExpression(value) {
var extractedVal = TYPES.UpdateExpression.call(undefined, value);
return extractedVal === undefined ? null : extractedVal;
},
ThisExpression: noop,
ConditionalExpression: noop,
BinaryExpression: noop,
ObjectExpression: noop,
NewExpression: noop,
ArrayExpression: function ArrayExpression(value) {
var extractedVal = TYPES.ArrayExpression.call(undefined, value);
return extractedVal.filter(function (val) {
return val !== null;
});
},
BindExpression: noop,
SpreadElement: noop,
TSNonNullExpression: noop,
TSAsExpression: noop,
TypeCastExpression: noop
});
/**
* This function maps an AST value node
* to its correct extractor function for its
* given type.
*
* This will map correctly for *some* possible types that map to literals.
*
* @param - value - AST Value object with type `JSXExpressionContainer`
* @returns The extracted value.
*/
function extractLiteral(value) {
// Value will not have the expression property when we recurse.
var expression = value.expression || value;
var type = expression.type;
if (LITERAL_TYPES[type] === undefined) {
// eslint-disable-next-line no-console
console.error(errorMessage(type));
return null;
}
return LITERAL_TYPES[type](expression);
}