Add union discriminator standard attribute (#67)

disjukr · web-flow · commit 1f26356e0807 · 2026-04-22T17:32:03.000+09:00
diff --git a/bdl-ts/src/generated/json/conventional.json b/bdl-ts/src/generated/json/conventional.json
@@ -76,6 +76,12 @@
         "description": "HTTP status code string as provided by the OpenAPI response map.\nExample: \"200\", \"400\", \"404\", \"500\", \"default\""
       }
     ],
+    "bdl.union": [
+      {
+        "key": "discriminator",
+        "description": "Specifies the discriminator field name for tagged unions."
+      }
+    ],
     "bdl.union.item": [
       {
         "key": "status",
diff --git a/standards/conventional.yaml b/standards/conventional.yaml
@@ -63,6 +63,10 @@ attributes:
       description: |-
         HTTP status code string as provided by the OpenAPI response map.
         Example: "200", "400", "404", "500", "default"
+  bdl.union:
+    - key: discriminator
+      description: |-
+        Specifies the discriminator field name for tagged unions.
   bdl.union.item:
     - key: status
       description: |-

Original file line number	Diff line number	Diff line change
`@@ -76,6 +76,12 @@`
`76`	`76`	`"description": "HTTP status code string as provided by the OpenAPI response map.\nExample: \"200\", \"400\", \"404\", \"500\", \"default\""`
`77`	`77`	`}`
`78`	`78`	`],`
	`79`	`+ "bdl.union": [`
	`80`	`+ {`
	`81`	`+ "key": "discriminator",`
	`82`	`+ "description": "Specifies the discriminator field name for tagged unions."`
	`83`	`+ }`
	`84`	`+ ],`
`79`	`85`	`"bdl.union.item": [`
`80`	`86`	`{`
`81`	`87`	`"key": "status",`