feat: allow undefined when property optional for exactOptionalPropert…

…yTypes
smithy-lang · Nov 12, 2024 · 87f0395 · 87f0395
1 parent 0d9cee8
commit 87f0395
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/...degen/src/main/java/software/amazon/smithy/typescript/codegen/StructuredMemberWriter.java b/...degen/src/main/java/software/amazon/smithy/typescript/codegen/StructuredMemberWriter.java
@@ -106,6 +106,9 @@ void writeMembers(TypeScriptWriter writer, Shape shape) {
             String optionalSuffix = shape.isUnionShape() || !isRequiredMember(member) ? "?" : "";
             String typeSuffix = requiredMemberMode == RequiredMemberMode.NULLABLE
                     && isRequiredMember(member) ? " | undefined" : "";
+            if (optionalSuffix.equals("?")) {
+                typeSuffix = " | undefined"; // support exactOptionalPropertyTypes.
+            }
             writer.write("${L}${L}${L}: ${T}${L};", memberPrefix, memberName, optionalSuffix,
                     symbolProvider.toSymbol(member), typeSuffix);
 

diff --git a/...t-codegen/src/main/java/software/amazon/smithy/typescript/codegen/TypeScriptSettings.java b/...t-codegen/src/main/java/software/amazon/smithy/typescript/codegen/TypeScriptSettings.java
@@ -558,7 +558,7 @@ public enum RequiredMemberMode {
         NULLABLE("nullable"),
 
         /**
-         * This will dissallow members marked as {@link RequiredTrait} to be {@code undefined}.
+         * This will disallow members marked as {@link RequiredTrait} to be {@code undefined}.
          * Use this mode with CAUTION because it comes with certain risks. When a server drops
          * {@link RequiredTrait} from an output shape (and it is replaced with {@link DefaultTrait}
          * as defined by the spec), if the server does not always serialize a value,