feat(compiler): v-text transform + move dom-specific errros codes to compiler-dom

packages/compiler-dom/__tests__/transforms/vText.spec.ts

@@ -0,0 +1,74 @@
+import {
+  parse,
+  transform,
+  PlainElementNode,
+  CompilerOptions
+} from '@vue/compiler-core'
+import { transformVText } from '../../src/transforms/vText'
+import { transformElement } from '../../../compiler-core/src/transforms/transformElement'
+import {
+  createObjectMatcher,
+  genFlagText
+} from '../../../compiler-core/__tests__/testUtils'
+import { PatchFlags } from '@vue/shared'
+import { DOMErrorCodes } from '../../src/errors'
+
+function transformWithVText(template: string, options: CompilerOptions = {}) {
+  const ast = parse(template)
+  transform(ast, {
+    nodeTransforms: [transformElement],
+    directiveTransforms: {
+      text: transformVText
+    },
+    ...options
+  })
+  return ast
+}
+
+describe('compiler: v-text transform', () => {
+  it('should convert v-text to textContent', () => {
+    const ast = transformWithVText(`<div v-text="test"/>`)
+    expect((ast.children[0] as PlainElementNode).codegenNode).toMatchObject({
+      arguments: [
+        `"div"`,
+        createObjectMatcher({
+          textContent: `[test]`
+        }),
+        `null`,
+        genFlagText(PatchFlags.PROPS),
+        `["textContent"]`
+      ]
+    })
+  })
+
+  it('should raise error and ignore children when v-text is present', () => {
+    const onError = jest.fn()
+    const ast = transformWithVText(`<div v-text="test">hello</div>`, {
+      onError
+    })
+    expect(onError.mock.calls).toMatchObject([
+      [{ code: DOMErrorCodes.X_V_TEXT_WITH_CHILDREN }]
+    ])
+    expect((ast.children[0] as PlainElementNode).codegenNode).toMatchObject({
+      arguments: [
+        `"div"`,
+        createObjectMatcher({
+          textContent: `[test]`
+        }),
+        `null`, // <-- children should have been removed
+        genFlagText(PatchFlags.PROPS),
+        `["textContent"]`
+      ]
+    })
+  })
+
+  it('should raise error if has no expression', () => {
+    const onError = jest.fn()
+    transformWithVText(`<div v-text></div>`, {
+      onError
+    })
+    expect(onError.mock.calls).toMatchObject([
+      [{ code: DOMErrorCodes.X_V_TEXT_NO_EXPRESSION }]
+    ])
+  })
+})