fix: t macro as function not extracting (#846)

packages/babel-plugin-extract-messages/test/__snapshots__/index.ts.snap

@@ -33,6 +33,15 @@ Object {
       ],
     ],
   },
+  ID Some: Object {
+    message: Message with id some,
+    origin: Array [
+      Array [
+        js-with-macros.js,
+        19,
+      ],
+    ],
+  },
   Message: Object {
     origin: Array [
       Array [

packages/babel-plugin-extract-messages/test/fixtures/js-with-macros.js

@@ -15,3 +15,8 @@ const withId = defineMessage({
 })
 
 const withValues = t`Values ${param}`
+
+const withTId = t({
+  id: "ID Some",
+  message: "Message with id some"
+})

packages/macro/src/constants.ts

@@ -1,3 +1,4 @@
 export const ID = "id"
 export const MESSAGE = "message"
 export const COMMENT = "comment"
+export const EXTRACT_MARK = "i18n"

packages/macro/src/macroJs.ts

@@ -4,7 +4,7 @@ import { NodePath } from "@babel/traverse"
 
 import ICUMessageFormat from "./icu"
 import { zip, makeCounter } from "./utils"
-import { COMMENT, ID, MESSAGE } from "./constants"
+import { COMMENT, ID, MESSAGE, EXTRACT_MARK } from "./constants"
 
 const keepSpaceRe = /(?:\\(?:\r\n|\r|\n))+\s+/g
 const keepNewLineRe = /(?:\r\n|\r|\n)+\s+/g
@@ -84,7 +84,7 @@ export default class MacroJs {
     // preserve line number
     newNode.loc = path.node.loc
 
-    this.addExtractMark(path)
+    path.addComment("leading", EXTRACT_MARK)
     // @ts-ignore
     path.replaceWith(newNode)
   }
@@ -98,7 +98,10 @@ export default class MacroJs {
       return
     }
 
-    if (this.types.isCallExpression(path.node) && this.isIdentifier(path.node.callee, "t")) {
+    if (
+      this.types.isCallExpression(path.node) &&
+      this.isIdentifier(path.node.callee, "t")
+    ) {
       this.replaceTAsFunction(path)
       return
     }
@@ -143,7 +146,6 @@ export default class MacroJs {
     this._expressionIndex = makeCounter()
 
     const descriptor = this.processDescriptor(path.node.arguments[0])
-    this.addExtractMark(path)
     path.replaceWith(descriptor)
   }
 
@@ -160,10 +162,6 @@ export default class MacroJs {
       ),
       [descriptor]
     )
-
-    this.addExtractMark(path)
-
-    // @ts-ignore
     path.replaceWith(newNode)
   }
 
@@ -185,6 +183,7 @@ export default class MacroJs {
    *
    */
   processDescriptor = (descriptor) => {
+    this.types.addComment(descriptor, "leading", EXTRACT_MARK)
     const messageIndex = descriptor.properties.findIndex(
       (property) => property.key.name === MESSAGE
     )
@@ -352,14 +351,6 @@ export default class MacroJs {
     }
   }
 
-  /**
-   * addExtractMark - add comment which marks the string/object
-   * for extraction.
-   * @lingui/babel-extract-messages looks for this comment
-   */
-  addExtractMark = (path) => {
-    path.addComment("leading", "i18n")
-  }
 
   /**
    * Custom matchers

packages/macro/test/js-t.ts

@@ -86,22 +86,19 @@ export default [
     name: "Support id and comment in t macro as callExpression",
     input: `
         import { t } from '@lingui/macro'
-        t({
-          id: 'msgId_2',
-          message: 'text',
-          comment: 'description for translators'
-        })
-        t({ id: 'msgId', comment: 'description for translators', message: plural(val, { one: '...', other: '...' }) })
+        const msg = t({ id: 'msgId', comment: 'description for translators', message: plural(val, { one: '...', other: '...' }) })
       `,
-    expected: `
-      import { i18n } from "@lingui/core"
-      /*i18n*/
-      i18n._({ id: "msgId_2", message: 'text', comment: 'description for translators' })
-      
-      /*i18n*/
-      i18n._({ id: "msgId", comment: 'description for translators', message: '{val, plural, one {...} other {...}}', values: {
-        val: val,
-      } })
+    expected: `import { i18n } from "@lingui/core";
+    const msg =
+      i18n._(/*i18n*/
+        {
+          id: "msgId",
+          comment: "description for translators",
+          message: "{val, plural, one {...} other {...}}",
+          values: {
+            val: val,
+          },
+        });
       `,
   },
   {