Revert "Upgrade typescript to 3.7.2 (#2237)"

This reverts commit 9085064.

package.json

@@ -159,7 +159,7 @@
     "shx": "^0.3.2",
     "storybook-chromatic": "^3.1.0",
     "svgo": "^1.3.0",
-    "typescript": "~3.7.2"
+    "typescript": "~3.5.1"
   },
   "peerDependencies": {
     "react": "^16.8.6",

src/components/ContextualSaveBar/ContextualSaveBar.tsx

@@ -1,14 +1,11 @@
 import React from 'react';
-import {
-  ContextualSaveBarProps as ContextualSaveBarProps1,
-  useFrame,
-} from '../../utilities/frame';
+import {ContextualSaveBarProps, useFrame} from '../../utilities/frame';
 
 // The script in the styleguide that generates the Props Explorer data expects
-// that the interface defining the props is defined in this file, not imported
-// from elsewhere. This silly workaround ensures that the Props Explorer table
-// is generated correctly.
-export interface ContextualSaveBarProps extends ContextualSaveBarProps1 {}
+// a component's props to be found in the Props interface. This silly workaround
+// ensures that the Props Explorer table is generated correctly, instead of
+// crashing if we write `ContextualSaveBar extends React.Component<ContextualSaveBarProps>`
+export interface ContextualSaveBarProps extends ContextualSaveBarProps {}
 
 export const ContextualSaveBar = React.memo(function ContextualSaveBar({
   message,

src/components/DropZone/tests/DropZone.test.tsx

@@ -473,9 +473,6 @@ function setBoundingClientRect(size: keyof typeof widths) {
         left: 0,
         bottom: 0,
         right: 0,
-        x: 0,
-        y: 0,
-        toJSON() {},
       };
     });
 }

src/components/RangeSlider/RangeSlider.tsx

@@ -6,9 +6,9 @@ import {RangeSliderDefault} from './utilities';
 import {SingleThumb, DualThumb} from './components';
 
 // The script in the styleguide that generates the Props Explorer data expects
-// that the interface defining the props is defined in this file, not imported
-// from elsewhere. This silly workaround ensures that the Props Explorer table
-// is generated correctly.
+// a component's props to be found in the Props interface. This silly workaround
+// ensures that the Props Explorer table is generated correctly, instead of
+// crashing if we write `RangeSlider extends React.Component<RangeSliderProps>`
 interface Props extends RangeSliderProps {}
 
 export function RangeSlider({

src/components/RangeSlider/components/DualThumb/tests/DualThumb.test.tsx

@@ -490,7 +490,16 @@ describe('<DualThumb />', () => {
         });
       getBoundingClientRectSpy = jest
         .spyOn(Element.prototype, 'getBoundingClientRect')
-        .mockImplementation(mockGetBoundingClientRect);
+        .mockImplementation(() => {
+          return {
+            width: 124,
+            height: 0,
+            top: 0,
+            left: -12,
+            bottom: 0,
+            right: 0,
+          };
+        });
     });
 
     afterAll(() => {
@@ -694,7 +703,16 @@ describe('<DualThumb />', () => {
         });
       getBoundingClientRectSpy = jest
         .spyOn(Element.prototype, 'getBoundingClientRect')
-        .mockImplementation(mockGetBoundingClientRect);
+        .mockImplementation(() => {
+          return {
+            width: 124,
+            height: 0,
+            top: 0,
+            left: -12,
+            bottom: 0,
+            right: 0,
+          };
+        });
     });
 
     afterAll(() => {
@@ -1025,19 +1043,3 @@ function findThumbUpper(containerComponent: ReactWrapper): ReactWrapper {
 function findTrack(containerComponent: ReactWrapper): ReactWrapper {
   return findByTestID(containerComponent, 'trackWrapper');
 }
-
-function mockGetBoundingClientRect(): ReturnType<
-  Element['getBoundingClientRect']
-> {
-  return {
-    width: 124,
-    height: 0,
-    top: 0,
-    left: -12,
-    bottom: 0,
-    right: 0,
-    x: 0,
-    y: 0,
-    toJSON() {},
-  };
-}

src/components/ThemeProvider/ThemeProvider.tsx

@@ -32,10 +32,10 @@ export function ThemeProvider({
     [customProperties, themeConfig, unstableGlobalTheming],
   );
 
-  // We want these values to be empty string instead of `undefined` when not set.
+  // We want these values to be `null` instead of `undefined` when not set.
   // Otherwise, setting a style property to `undefined` does not remove it from the DOM.
-  const backgroundColor = customProperties['--p-surface-background'] || '';
-  const color = customProperties['--p-text-on-surface'] || '';
+  const backgroundColor = customProperties['--p-surface-background'] || null;
+  const color = customProperties['--p-text-on-surface'] || null;
 
   useEffect(() => {
     document.body.style.backgroundColor = backgroundColor;

src/components/Toast/Toast.tsx

@@ -2,16 +2,16 @@ import React, {useRef} from 'react';
 import {Toast as AppBridgeToast} from '@shopify/app-bridge/actions';
 
 import {DEFAULT_TOAST_DURATION} from '../Frame';
-import {ToastProps as ToastProps1, useFrame} from '../../utilities/frame';
+import {ToastProps, useFrame} from '../../utilities/frame';
 import {useUniqueId} from '../../utilities/unique-id';
 import {useDeepEffect} from '../../utilities/use-deep-effect';
 import {useAppBridge} from '../../utilities/app-bridge';
 
 // The script in the styleguide that generates the Props Explorer data expects
-// that the interface defining the props is defined in this file, not imported
-// from elsewhere. This silly workaround ensures that the Props Explorer table
-// is generated correctly.
-export interface ToastProps extends ToastProps1 {}
+// a component's props to be found in the Props interface. This silly workaround
+// ensures that the Props Explorer table is generated correctly, instead of
+// crashing if we write `ComposedProps = ToastProps & WithAppProviderProps`
+export interface ToastProps extends ToastProps {}
 
 export const Toast = React.memo(function Toast(props: ToastProps) {
   const id = useUniqueId('Toast');

src/utilities/tests/is-element-in-viewport.test.ts

@@ -69,8 +69,5 @@ function mockGetBoundingClientRect({
     right,
     height,
     width,
-    x: 0,
-    y: 0,
-    toJSON() {},
   });
 }

yarn.lock

@@ -16886,10 +16886,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@~3.7.2:
-  version "3.7.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.7.2.tgz#27e489b95fa5909445e9fef5ee48d81697ad18fb"
-  integrity sha512-ml7V7JfiN2Xwvcer+XAf2csGO1bPBdRbFCkYBczNZggrBZ9c7G3riSUeJmqEU5uOtXNPMhE3n+R4FA/3YOAWOQ==
+typescript@~3.5.1:
+  version "3.5.1"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.5.1.tgz#ba72a6a600b2158139c5dd8850f700e231464202"
+  integrity sha512-64HkdiRv1yYZsSe4xC1WVgamNigVYjlssIoaH2HcZF0+ijsk5YK2g0G34w9wJkze8+5ow4STd22AynfO6ZYYLw==
 
 ua-parser-js@^0.7.18:
   version "0.7.19"