0.2.0 - Mid migration

web/node_modules/@material-ui/styles/es/ThemeProvider/ThemeProvider.js

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+import _extends from "@babel/runtime/helpers/esm/extends";
+import React from 'react';
+import PropTypes from 'prop-types';
+import { exactProp } from '@material-ui/utils';
+import ThemeContext from '../useTheme/ThemeContext';
+import useTheme from '../useTheme';
+import nested from './nested'; // To support composition of theme.
+
+function mergeOuterLocalTheme(outerTheme, localTheme) {
+  if (typeof localTheme === 'function') {
+    const mergedTheme = localTheme(outerTheme);
+
+    if (process.env.NODE_ENV !== 'production') {
+      if (!mergedTheme) {
+        console.error(['Material-UI: You should return an object from your theme function, i.e.', '<ThemeProvider theme={() => ({})} />'].join('\n'));
+      }
+    }
+
+    return mergedTheme;
+  }
+
+  return _extends({}, outerTheme, localTheme);
+}
+/**
+ * This component takes a `theme` prop.
+ * It makes the `theme` available down the React tree thanks to React context.
+ * This component should preferably be used at **the root of your component tree**.
+ */
+
+
+function ThemeProvider(props) {
+  const {
+    children,
+    theme: localTheme
+  } = props;
+  const outerTheme = useTheme();
+
+  if (process.env.NODE_ENV !== 'production') {
+    if (outerTheme === null && typeof localTheme === 'function') {
+      console.error(['Material-UI: You are providing a theme function prop to the ThemeProvider component:', '<ThemeProvider theme={outerTheme => outerTheme} />', '', 'However, no outer theme is present.', 'Make sure a theme is already injected higher in the React tree ' + 'or provide a theme object.'].join('\n'));
+    }
+  }
+
+  const theme = React.useMemo(() => {
+    const output = outerTheme === null ? localTheme : mergeOuterLocalTheme(outerTheme, localTheme);
+
+    if (output != null) {
+      output[nested] = outerTheme !== null;
+    }
+
+    return output;
+  }, [localTheme, outerTheme]);
+  return /*#__PURE__*/React.createElement(ThemeContext.Provider, {
+    value: theme
+  }, children);
+}
+
+process.env.NODE_ENV !== "production" ? ThemeProvider.propTypes = {
+  /**
+   * Your component tree.
+   */
+  children: PropTypes.node.isRequired,
+
+  /**
+   * A theme object. You can provide a function to extend the outer theme.
+   */
+  theme: PropTypes.oneOfType([PropTypes.object, PropTypes.func]).isRequired
+} : void 0;
+
+if (process.env.NODE_ENV !== 'production') {
+  process.env.NODE_ENV !== "production" ? ThemeProvider.propTypes = exactProp(ThemeProvider.propTypes) : void 0;
+}
+
+export default ThemeProvider;

web/node_modules/@material-ui/styles/es/ThemeProvider/index.js

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+export { default } from './ThemeProvider';

web/node_modules/@material-ui/styles/es/ThemeProvider/nested.js

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+const hasSymbol = typeof Symbol === 'function' && Symbol.for;
+export default hasSymbol ? Symbol.for('mui.nested') : '__THEME_NESTED__';