Use array for SetShape

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/HttpProtocolTestGenerator.java

@@ -457,12 +457,6 @@ public Void arrayNode(ArrayNode node) {
             String openElement = "[";
             String closeElement = "]";
 
-            // Handle sets needing to use the Set typing instead of standard array syntax.
-            if (workingShape.isSetShape()) {
-                openElement = "new Set(" + openElement;
-                closeElement = closeElement + ")";
-            }
-
             // Write the value out directly.
             writer.openBlock("$L\n", closeElement + ",\n", openElement, () -> {
                 Shape wrapperShape = this.workingShape;

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/SymbolVisitor.java

@@ -132,7 +132,7 @@ public Symbol listShape(ListShape shape) {
     @Override
     public Symbol setShape(SetShape shape) {
         Symbol reference = toSymbol(shape.getMember());
-        return createSymbolBuilder(shape, format("Set<%s>", reference.getName()), null)
+        return createSymbolBuilder(shape, format("(%s)[]", reference.getName()), null)
                 .addReference(reference)
                 .build();
     }

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/DocumentShapeDeserVisitor.java

@@ -442,7 +442,7 @@ public final Void mapShape(MapShape shape) {
      * const deserializeAws_restJson1_1ParameterSet = (
      *   output: any,
      *   context: SerdeContext
-     * ): Set<Parameter> => {
+     * ): Parameter[] => {
      *   return (output || []).map((entry: any) =>
      *     deserializeAws_restJson1_1Parameter(entry, context)
      *   );

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/DocumentShapeSerVisitor.java

@@ -437,7 +437,7 @@ public final Void mapShape(MapShape shape) {
      *
      * <pre>{@code
      * const serializeAws_restJson1_1ParametersSet = (
-     *   input: Set<Parameter>,
+     *   input: Parameter[],
      *   context: SerdeContext
      * ): any => {
      *   return (input || []).map(entry =>

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/HttpBindingProtocolGenerator.java

@@ -1397,10 +1397,6 @@ private String getCollectionOutputParam(
                 // Iterate over each entry and do deser work.
                 outputParam += ".map(_entry => " + collectionTargetValue + ")";
 
-                // Make sets when necessary.
-                if (target.isSetShape()) {
-                    outputParam = "new Set(" + outputParam + ")";
-                }
                 return outputParam;
             default:
                 throw new CodegenException("Unexpected collection binding location `" + bindingType + "`");

smithy-typescript-codegen/src/main/resources/software/amazon/smithy/typescript/codegen/protocol-test-stub.ts

@@ -100,10 +100,6 @@ const compareParts = (expectedParts: comparableParts, generatedParts: comparable
  */
 const equivalentContents = (expected: any, generated: any): boolean => {
   let localExpected = expected;
-  // Handle comparing sets to arrays properly.
-  if (expected instanceof Set) {
-    localExpected = Array.from(expected);
-  }
 
   // Short circuit on equality.
   if (localExpected == generated) {