Fix order of operations related codegen (#78)

Author: Chase Coalwell

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

@@ -254,7 +254,8 @@ public Void serviceShape(ServiceShape shape) {
 
         // Generate each operation for the service.
         TopDownIndex topDownIndex = model.getKnowledge(TopDownIndex.class);
-        for (OperationShape operation : topDownIndex.getContainedOperations(service)) {
+        Set<OperationShape> containedOperations = new TreeSet<>(topDownIndex.getContainedOperations(service));
+        for (OperationShape operation : containedOperations) {
             writers.useShapeWriter(operation, commandWriter -> new CommandGenerator(
                     settings, model, operation, symbolProvider, commandWriter,
                     runtimePlugins, protocolGenerator, applicationProtocol).run());

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

@@ -15,6 +15,8 @@
 
 package software.amazon.smithy.typescript.codegen;
 
+import java.util.Set;
+import java.util.TreeSet;
 import software.amazon.smithy.build.FileManifest;
 import software.amazon.smithy.codegen.core.Symbol;
 import software.amazon.smithy.codegen.core.SymbolProvider;
@@ -49,7 +51,8 @@ static void writeIndex(
 
         // write export statements for each command in /commands directory
         TopDownIndex topDownIndex = model.getKnowledge(TopDownIndex.class);
-        for (OperationShape operation : topDownIndex.getContainedOperations(service)) {
+        Set<OperationShape> containedOperations = new TreeSet<>(topDownIndex.getContainedOperations(service));
+        for (OperationShape operation : containedOperations) {
             writer.write("export * from \"./commands/" + symbolProvider.toSymbol(operation).getName() + "\";");
         }
         fileManifest.writeFile("index.ts", writer.toString());

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

@@ -15,6 +15,8 @@
 
 package software.amazon.smithy.typescript.codegen;
 
+import java.util.Set;
+import java.util.TreeSet;
 import software.amazon.smithy.codegen.core.Symbol;
 import software.amazon.smithy.codegen.core.SymbolProvider;
 import software.amazon.smithy.model.Model;
@@ -67,7 +69,8 @@ public void run() {
         // Generate the client and extend from the modular client.
         writer.writeShapeDocs(service);
         writer.openBlock("export class $L extends $T {", "}", nonModularName, serviceSymbol, () -> {
-            for (OperationShape operation : topDownIndex.getContainedOperations(service)) {
+            Set<OperationShape> containedOperations = new TreeSet<>(topDownIndex.getContainedOperations(service));
+            for (OperationShape operation : containedOperations) {
                 Symbol operationSymbol = symbolProvider.toSymbol(operation);
                 Symbol input = operationSymbol.expectProperty("inputType", Symbol.class);
                 Symbol output = operationSymbol.expectProperty("outputType", Symbol.class);