chore: removes import source files

& restructure jsx to simplify

packages/react-components/react-jsx-runtime/etc/react-jsx-runtime.api.md

@@ -7,10 +7,10 @@
 import { Fragment } from 'react';
 import * as React_2 from 'react';
 
-export { Fragment }
+// @public (undocumented)
+export function createElement<P extends {}>(type: React_2.ElementType<P>, props?: P | null, ...children: React_2.ReactNode[]): React_2.ReactElement<P> | null;
 
-// @public
-export function jsx<P extends {}>(type: React_2.ElementType<P>, props?: P | null, ...children: React_2.ReactNode[]): React_2.ReactElement<P> | null;
+export { Fragment }
 
 // (No @packageDocumentation comment for this package)
 

packages/react-components/react-jsx-runtime/src/createElement.test.tsx

@@ -0,0 +1,168 @@
+/* eslint-disable jsdoc/check-tag-names */
+/** @jsxRuntime classic */
+/** @jsxFrag Fragment */
+/** @jsx createElement */
+/* eslint-enable jsdoc/check-tag-names */
+
+import { render } from '@testing-library/react';
+import { ComponentProps, ComponentState, Slot, getSlotsNext, resolveShorthand } from '@fluentui/react-utilities';
+import { createElement } from './createElement';
+
+describe('createElement', () => {
+  describe('general behavior tests', () => {
+    it('handles a string', () => {
+      const result = render(<div>Hello world</div>);
+
+      expect(result.container.firstChild).toMatchInlineSnapshot(`
+        <div>
+          Hello world
+        </div>
+      `);
+    });
+
+    it('handles an array', () => {
+      const result = render(
+        <div>
+          {Array.from({ length: 3 }, (_, i) => (
+            <div key={i}>{i}</div>
+          ))}
+        </div>,
+      );
+
+      expect(result.container.firstChild).toMatchInlineSnapshot(`
+        <div>
+          <div>
+            0
+          </div>
+          <div>
+            1
+          </div>
+          <div>
+            2
+          </div>
+        </div>
+      `);
+    });
+
+    it('handles an array of children', () => {
+      const result = render(
+        <div>
+          <div>1</div>
+          <div>2</div>
+        </div>,
+      );
+
+      expect(result.container.firstChild).toMatchInlineSnapshot(`
+        <div>
+          <div>
+            1
+          </div>
+          <div>
+            2
+          </div>
+        </div>
+      `);
+    });
+  });
+
+  describe('custom behavior tests', () => {
+    it('keeps children from "defaultProps" in a render callback', () => {
+      type TestComponentSlots = { slot: Slot<'div'> };
+      type TestComponentState = ComponentState<TestComponentSlots>;
+      type TestComponentProps = ComponentProps<Partial<TestComponentSlots>>;
+
+      const TestComponent = (props: TestComponentProps) => {
+        const state: TestComponentState = {
+          components: { slot: 'div' },
+
+          slot: resolveShorthand(props.slot, {
+            defaultProps: { children: 'Default Children', id: 'slot' },
+          }),
+        };
+        const { slots, slotProps } = getSlotsNext<TestComponentSlots>(state);
+
+        return <slots.slot {...slotProps.slot} />;
+      };
+
+      const children = jest.fn().mockImplementation((Component, props) => (
+        <div id="render-fn">
+          <Component {...props} />
+        </div>
+      ));
+      const result = render(<TestComponent slot={{ children }} />);
+
+      expect(children).toHaveBeenCalledTimes(1);
+      expect(children).toHaveBeenCalledWith('div', { children: 'Default Children', id: 'slot' });
+
+      expect(result.container.firstChild).toMatchInlineSnapshot(`
+        <div
+          id="render-fn"
+        >
+          <div
+            id="slot"
+          >
+            Default Children
+          </div>
+        </div>
+      `);
+    });
+
+    it('keeps children from a render template in a render callback', () => {
+      type TestComponentSlots = { outer: Slot<'div'>; inner: Slot<'div'> };
+      type TestComponentState = ComponentState<TestComponentSlots>;
+      type TestComponentProps = ComponentProps<Partial<TestComponentSlots>>;
+
+      const TestComponent = (props: TestComponentProps) => {
+        const state: TestComponentState = {
+          components: { inner: 'div', outer: 'div' },
+
+          inner: resolveShorthand(props.inner, { defaultProps: { id: 'inner' } }),
+          outer: resolveShorthand(props.outer, { defaultProps: { id: 'outer' } }),
+        };
+        const { slots, slotProps } = getSlotsNext<TestComponentSlots>(state);
+
+        return (
+          <slots.outer {...slotProps.outer}>
+            <slots.inner {...slotProps.inner} />
+          </slots.outer>
+        );
+      };
+
+      const children = jest.fn().mockImplementation((Component, props) => (
+        <div id="render-fn">
+          <Component {...props} />
+        </div>
+      ));
+      const result = render(<TestComponent outer={{ children }} inner={{ children: 'Inner children' }} />);
+
+      expect(children).toHaveBeenCalledTimes(1);
+      expect(children.mock.calls[0][0]).toBe('div');
+      expect(children.mock.calls[0][1].id).toBe('outer');
+      expect(children.mock.calls[0][1].children).toMatchInlineSnapshot(`
+        <React.Fragment>
+          <div
+            id="inner"
+          >
+            Inner children
+          </div>
+        </React.Fragment>
+      `);
+
+      expect(result.container.firstChild).toMatchInlineSnapshot(`
+        <div
+          id="render-fn"
+        >
+          <div
+            id="outer"
+          >
+            <div
+              id="inner"
+            >
+              Inner children
+            </div>
+          </div>
+        </div>
+      `);
+    });
+  });
+});

packages/react-components/react-jsx-runtime/src/createElement.ts

@@ -0,0 +1,49 @@
+import * as React from 'react';
+import { SlotRenderFunction, UnknownSlotProps, SLOT_RENDER_FUNCTION_SYMBOL } from '@fluentui/react-utilities';
+
+type WithMetadata<Props extends {}> = Props & {
+  [SLOT_RENDER_FUNCTION_SYMBOL]: SlotRenderFunction<Props>;
+};
+
+export function createElement<P extends {}>(
+  type: React.ElementType<P>,
+  props?: P | null,
+  ...children: React.ReactNode[]
+): React.ReactElement<P> | null {
+  if (!isSlotComponent(props)) {
+    return React.createElement(type, props, ...children);
+  }
+
+  const result = normalizeRenderFunction(props, children);
+  return React.createElement(
+    React.Fragment,
+    {},
+    result.renderFunction(type, { ...result.props, children: result.children }),
+  ) as React.ReactElement<P>;
+}
+
+function normalizeRenderFunction<Props extends UnknownSlotProps>(
+  propsWithMetadata: WithMetadata<Props>,
+  overrideChildren?: React.ReactNode[],
+): {
+  props: Props;
+  children: React.ReactNode;
+  renderFunction: SlotRenderFunction<Props>;
+} {
+  const { [SLOT_RENDER_FUNCTION_SYMBOL]: renderFunction, children: externalChildren, ...props } = propsWithMetadata;
+
+  const children: React.ReactNode =
+    Array.isArray(overrideChildren) && overrideChildren.length > 0
+      ? React.createElement(React.Fragment, {}, ...overrideChildren)
+      : externalChildren;
+
+  return {
+    children,
+    renderFunction,
+    props: props as UnknownSlotProps as Props,
+  };
+}
+
+export function isSlotComponent<Props extends {}>(props?: Props | null): props is WithMetadata<Props> {
+  return Boolean(props?.hasOwnProperty(SLOT_RENDER_FUNCTION_SYMBOL));
+}

packages/react-components/react-jsx-runtime/src/index.ts

@@ -1,2 +1,2 @@
-export { jsx } from './jsx';
+export { createElement } from './createElement';
 export { Fragment } from 'react';