codegen: Update AwsQuery and JSONRPC protocols to skip empty inputs

Updates the AwsQuery and JSONPRC protocols to skip serializing inputs with no methods. Related to aws/smithy-go#261
jasdel · Jan 15, 2021 · af1f43f · af1f43f
1 parent d08f647
commit af1f43f
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diff --git a/...n/smithy-aws-go-codegen/src/main/java/software/amazon/smithy/aws/go/codegen/AwsQuery.java b/...n/smithy-aws-go-codegen/src/main/java/software/amazon/smithy/aws/go/codegen/AwsQuery.java
@@ -68,9 +68,6 @@ protected void serializeInputDocument(GenerationContext context, OperationShape
             writer.openBlock("if err := $L(input, bodyEncoder.Value); err != nil {", "}", functionName, () -> {
                 writer.write("return out, metadata, &smithy.SerializationError{Err: err}");
             }).write("");
-        } else {
-            writer.write("_ = input");
-            writer.write("");
         }
 
         writer.write("err = bodyEncoder.Encode()");

diff --git a/...codegen/src/main/java/software/amazon/smithy/aws/go/codegen/JsonRpcProtocolGenerator.java b/...codegen/src/main/java/software/amazon/smithy/aws/go/codegen/JsonRpcProtocolGenerator.java
@@ -67,8 +67,6 @@ protected void serializeInputDocument(GenerationContext context, OperationShape
 
         // If there are no members then there's nothing to serialize
         if (input.members().size() == 0) {
-            // Prevent warnings caused by input not being used
-            writer.write("_ = input");
             return;
         }