feat: add directive feature

.jest.js

@@ -1,8 +1,17 @@
-const { h, mergeProps } = require('vue');
+const path = require('path')
+const jsxInjectionPATH = 'PACKAGE/lib/jsxInjection';
+const { jsxRender,jsxMergeProps } = require("./lib/jsxInjection");
+
 module.exports = {
-  globals: {
-    "_h": h,
-    "_mergeProps": mergeProps
+  moduleNameMapper:{
+    [jsxInjectionPATH]:path.resolve(__dirname,'./lib/jsxInjection')
   },
-  setupFiles: ['./tests/setup.js'],
+  "transform": {
+    "^.+\\.[t|j]sx?$": "babel-jest"
+  },
+  modulePaths :["<rootDir>/lib/"],
+  globals: {
+    _jsxRender:jsxRender,
+    _jsxMergeProps:jsxMergeProps
+  }
 }

lib/jsxInjection.js

@@ -0,0 +1,69 @@
+const {
+  h, resolveDirective, withDirectives, mergeProps,
+} = require('vue');
+
+function isObject(val) {
+  return val !== null && typeof val === 'object';
+}
+function isVNode(value) {
+  // eslint-disable-next-line no-underscore-dangle
+  return value ? value._isVNode === true : false;
+}
+
+function handleDirective(directives) {
+  return directives.map((item) => {
+    // handle situation: <a v-cust={{value,modifiers,arg}} />
+    // eslint-disable-next-line no-underscore-dangle
+    if (item._internal_directive_flag && item.value && item.value && !item.modifiers && !item.arg) {
+      const directiveOption = item.value;
+      item = {
+        value: directiveOption.value,
+        modifiers: directiveOption.modifiers,
+        arg: directiveOption.arg,
+        name: item.name,
+      };
+    }
+    if (typeof item.dir === 'string') {
+      item.name = item.dir;
+    }
+    if (typeof item.name === 'string') {
+      item.dir = resolveDirective(item.name);
+    }
+    return [item.dir, item.value, item.arg, item.modifiers];
+  });
+}
+function jsxRender(type, propsOrChildren, children) {
+  if (
+    arguments.length > 1
+        && isObject(propsOrChildren)
+        && !Array.isArray(propsOrChildren)
+        && !isVNode(propsOrChildren)
+  ) {
+    const { directives } = propsOrChildren;
+    if (directives && directives.length > 0) {
+      const directivesArr = handleDirective(directives);
+      delete propsOrChildren.directives;
+      return withDirectives(h.call(this, type, propsOrChildren, children), directivesArr);
+    }
+  }
+  return h.call(this, type, propsOrChildren, children);
+}
+function jsxMergeProps(...arg) {
+  arg = arg.map((props) => {
+    props.onJSXTEMPDirectives = props.directives;
+    return props;
+  });
+  // 'directives' should be merged like 'on'
+  const result = mergeProps(...arg);
+  result.directives = result.onJSXTEMPDirectives;
+  delete result.onJSXTEMPDirectives;
+  if (!result.directives || result.directives.length === 0) {
+    delete result.directives;
+  }
+  return result;
+}
+
+module.exports = {
+  jsxRender,
+  jsxMergeProps,
+};

src/babel-plugin-transform-vue-jsx.js

@@ -4,9 +4,11 @@ const htmlTags = require('html-tags');
 const svgTags = require('svg-tags');
 const helperModuleImports = require('@babel/helper-module-imports');
 
+const jsxInjectionPATH = 'PACKAGE/lib/jsxInjection';
 const xlinkRE = /^xlink([A-Z])/;
 const eventRE = /^on[A-Z][a-z]+$/;
 const rootAttributes = ['class', 'style'];
+const dirRE = /^v-/;
 
 /**
  * click --> onClick
@@ -84,7 +86,7 @@ const getJSXAttributeValue = (path, injected) => {
   return null;
 };
 
-const transformJSXAttribute = (path, attributesToMerge, injected) => {
+const transformJSXAttribute = (path, attributesToMerge, injected, directives) => {
   let name = getJSXAttributeName(path);
   if (name === 'on') {
     const { properties = [] } = getJSXAttributeValue(path);
@@ -98,6 +100,14 @@ const transformJSXAttribute = (path, attributesToMerge, injected) => {
     });
     return null;
   }
+  if (dirRE.test(name)) {
+    directives.push(t.objectExpression([
+      t.objectProperty(t.identifier('name'), t.stringLiteral(name.replace(dirRE, ''))),
+      t.objectProperty(t.identifier('value'), getJSXAttributeValue(path)),
+      t.objectProperty(t.identifier('_internal_directive_flag'), t.booleanLiteral(true)),
+    ]));
+    return null;
+  }
   if (rootAttributes.includes(name) || eventRE.test(name)) {
     attributesToMerge.push(
       t.objectExpression([
@@ -147,8 +157,8 @@ const transformJSXSpreadAttribute = (path, attributesToMerge) => {
   })));
 };
 
-const transformAttribute = (path, attributesToMerge, injected) => (path.isJSXAttribute()
-  ? transformJSXAttribute(path, attributesToMerge, injected)
+const transformAttribute = (path, attributesToMerge, injected, directives) => (path.isJSXAttribute()
+  ? transformJSXAttribute(path, attributesToMerge, injected, directives)
   : transformJSXSpreadAttribute(path, attributesToMerge));
 
 const getAttributes = (path, injected) => {
@@ -159,9 +169,10 @@ const getAttributes = (path, injected) => {
 
   const attributesToMerge = [];
   const attributeArray = [];
+  const directives = [];
   attributes
     .forEach((attribute) => {
-      const attr = transformAttribute(attribute, attributesToMerge, injected);
+      const attr = transformAttribute(attribute, attributesToMerge, injected, directives);
       if (attr) {
         attributeArray.push(attr);
       }
@@ -171,6 +182,7 @@ const getAttributes = (path, injected) => {
     [
       ...attributesToMerge,
       t.objectExpression(attributeArray),
+      t.objectExpression([t.objectProperty(t.identifier('directives'), t.arrayExpression(directives))]),
     ],
   );
 };
@@ -279,10 +291,10 @@ module.exports = () => ({
     JSXElement: {
       exit(path, state) {
         if (!state.vueCreateElementInjected) {
-          state.vueCreateElementInjected = helperModuleImports.addNamed(path, 'h', 'vue');
+          state.vueCreateElementInjected = helperModuleImports.addNamed(path, 'jsxRender', jsxInjectionPATH);
         }
         if (!state.vueMergePropsInjected) {
-          state.vueMergePropsInjected = helperModuleImports.addNamed(path, 'mergeProps', 'vue');
+          state.vueMergePropsInjected = helperModuleImports.addNamed(path, 'jsxMergeProps', jsxInjectionPATH);
         }
         path.replaceWith(
           transformJSXElement(path, {

test/directive.test.js

@@ -1,5 +1,6 @@
+import { shallowMount } from '@vue/test-utils';
 import { defineComponent } from 'vue';
-import { createMountedApp } from './util';
+
 test('directive', () => {
   const calls = [];
   const customDirective = {
@@ -7,30 +8,30 @@ test('directive', () => {
       calls.push(1);
     },
   };
-  const compoentA = defineComponent(
-    {
-      directives: { customDirective },
-      render: () => (
-        <div
-          v-custom-directive={
-            {
-              value: 123,
-              modifiers: { modifier: true },
-              arg: 'arg',
-            }
-          } />
-      ),
-    },
-  );
-  const { node } = createMountedApp(compoentA);
+  const compoentA = defineComponent({
+    directives: { custom: customDirective },
+    render: () => (
+      <a
+        v-custom={{
+          value: 123,
+          modifiers: { modifier: true },
+          arg: 'arg',
+        }}
+      />
+    ),
+  });
+  const wrapper = shallowMount(compoentA);
+  const node = wrapper.vm.$.subTree;
   expect(calls).toEqual(expect.arrayContaining([1]));
   expect(node.dirs).toHaveLength(1);
   expect(node.dirs[0]).toMatchObject({
-    modifiers: { modifier: true }, dir: customDirective, arg: 'arg', value: 123,
+    modifiers: { modifier: true },
+    dir: customDirective,
+    arg: 'arg',
+    value: 123,
   });
 });
 
-
 test('directive in spread object property', () => {
   const calls = [];
   const customDirective = {
@@ -40,19 +41,24 @@ test('directive in spread object property', () => {
   };
   const directives = [
     {
-      name: 'custom-directive', value: 123, modifiers: { modifier: true }, arg: 'arg',
+      name: 'custom-directive',
+      value: 123,
+      modifiers: { modifier: true },
+      arg: 'arg',
     },
   ];
-  const compoentA = defineComponent(
-    {
-      directives: { customDirective },
-      render: () => (<div {...{ directives }}>123</div>),
-    },
-  );
-  const { node } = createMountedApp(compoentA);
+  const compoentA = defineComponent({
+    directives: { customDirective },
+    render: () => <a {...{ directives }}>123</a>,
+  });
+  const wrapper = shallowMount(compoentA);
+  const node = wrapper.vm.$.subTree;
   expect(calls).toEqual(expect.arrayContaining([1]));
   expect(node.dirs).toHaveLength(1);
   expect(node.dirs[0]).toMatchObject({
-    modifiers: { abc: true }, dir: customDirective, arg: 'arg', value: 123,
+    modifiers: { modifier: true },
+    dir: customDirective,
+    arg: 'arg',
+    value: 123,
   });
 });

webpack.config.js

@@ -1,5 +1,7 @@
 const path = require('path');
 
+const jsxInjectionPATH = 'PACKAGE/lib/jsxInjection';
+
 module.exports = {
   mode: 'development',
   devtool: 'cheap-module-eval-source-map',
@@ -17,6 +19,14 @@ module.exports = {
       },
     ],
   },
+  resolve: {
+    alias: {
+      [jsxInjectionPATH]: path.resolve(
+        __dirname,
+        './lib/jsxInjection',
+      ),
+    },
+  },
   devServer: {
     inline: true,
     open: true,