feat: accept t as function

Author: Sergio

packages/macro/src/macroJs.ts

@@ -98,6 +98,11 @@ export default class MacroJs {
       return
     }
 
+    if (this.types.isCallExpression(path.node) && this.isIdentifier(path.node.callee, "t")) {
+      this.replaceTAsFunction(path)
+      return
+    }
+
     const tokens = this.tokenizeNode(path.node)
 
     const messageFormat = new ICUMessageFormat()
@@ -142,6 +147,26 @@ export default class MacroJs {
     path.replaceWith(descriptor)
   }
 
+  /**
+   * macro `t` is called with MessageDescriptor, after that
+   * we create a new node to append it to i18n._
+   */
+  replaceTAsFunction = (path) => {
+    const descriptor = this.processDescriptor(path.node.arguments[0])
+    const newNode = this.types.callExpression(
+      this.types.memberExpression(
+        this.types.identifier(this.i18nImportName),
+        this.types.identifier("_")
+      ),
+      [descriptor]
+    )
+
+    this.addExtractMark(path)
+
+    // @ts-ignore
+    path.replaceWith(newNode)
+  }
+
   /**
    * `processDescriptor` expand macros inside messsage descriptor.
    * Message descriptor is used in `defineMessage`.

packages/macro/test/js-t.ts

@@ -82,6 +82,28 @@ export default [
         i18n._("Multiline\\nstring")
       `,
   },
+  {
+    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: '...' }) })
+      `,
+    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,
+      } })
+      `,
+  },
   {
     name: "Newlines after continuation character are removed",
     filename: "js-t-continuation-character.js",