react-native/Libraries/StyleSheet/StyleSheetValidation.js

89 lines
2.3 KiB
JavaScript

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
* @flow
*/
'use strict';
const ImageStylePropTypes = require('ImageStylePropTypes');
const TextStylePropTypes = require('TextStylePropTypes');
const ViewStylePropTypes = require('ViewStylePropTypes');
const invariant = require('fbjs/lib/invariant');
// Hardcoded because this is a legit case but we don't want to load it from
// a private API. We might likely want to unify style sheet creation with how it
// is done in the DOM so this might move into React. I know what I'm doing so
// plz don't fire me.
const ReactPropTypesSecret = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED';
class StyleSheetValidation {
static validateStyleProp(prop: string, style: Object, caller: string) {
if (!__DEV__) {
return;
}
if (allStylePropTypes[prop] === undefined) {
const message1 = '"' + prop + '" is not a valid style property.';
const message2 =
'\nValid style props: ' +
JSON.stringify(Object.keys(allStylePropTypes).sort(), null, ' ');
styleError(message1, style, caller, message2);
}
const error = allStylePropTypes[prop](
style,
prop,
caller,
'prop',
null,
ReactPropTypesSecret,
);
if (error) {
styleError(error.message, style, caller);
}
}
static validateStyle(name: string, styles: Object) {
if (!__DEV__) {
return;
}
for (const prop in styles[name]) {
StyleSheetValidation.validateStyleProp(
prop,
styles[name],
'StyleSheet ' + name,
);
}
}
static addValidStylePropTypes(stylePropTypes) {
for (const key in stylePropTypes) {
allStylePropTypes[key] = stylePropTypes[key];
}
}
}
const styleError = function(message1, style, caller?, message2?) {
invariant(
false,
message1 +
'\n' +
(caller || '<<unknown>>') +
': ' +
JSON.stringify(style, null, ' ') +
(message2 || ''),
);
};
const allStylePropTypes = {};
StyleSheetValidation.addValidStylePropTypes(ImageStylePropTypes);
StyleSheetValidation.addValidStylePropTypes(TextStylePropTypes);
StyleSheetValidation.addValidStylePropTypes(ViewStylePropTypes);
module.exports = StyleSheetValidation;