Add accessors on document member visitors

These accessors are necessary to allow extending implementations to
not need to store their own copies of this information in order to
perform their own work.

Author: kstich

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

@@ -66,9 +66,9 @@
  * TODO: Update this with a mechanism to handle String and Blob shapes with the @mediatype trait.
  */
 public class DocumentMemberDeserVisitor implements ShapeVisitor<String> {
-    private final Format defaultTimestampFormat;
     private final GenerationContext context;
     private final String dataSource;
+    private final Format defaultTimestampFormat;
 
     /**
      * Constructor.
@@ -89,16 +89,34 @@ public DocumentMemberDeserVisitor(
         this.defaultTimestampFormat = defaultTimestampFormat;
     }
 
+    /**
+     * Gets the generation context.
+     *
+     * @return The generation context.
+     */
+    protected final GenerationContext getContext() {
+        return context;
+    }
+
     /**
      * Gets the in-code location of the data to provide an output of
      * ({@code output.foo}, {@code entry}, etc.).
      *
      * @return The data source.
      */
-    protected String getDataSource() {
+    protected final String getDataSource() {
         return dataSource;
     }
 
+    /**
+     * Gets the default timestamp format used in absence of a TimestampFormat trait.
+     *
+     * @return The default timestamp format.
+     */
+    protected final Format getDefaultTimestampFormat() {
+        return defaultTimestampFormat;
+    }
+
     @Override
     public String blobShape(BlobShape shape) {
         return "context.base64Decoder(" + dataSource + ")";

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

@@ -65,9 +65,9 @@
  * TODO: Update this with a mechanism to handle String and Blob shapes with the @mediatype trait.
  */
 public class DocumentMemberSerVisitor implements ShapeVisitor<String> {
-    private final Format defaultTimestampFormat;
     private final GenerationContext context;
     private final String dataSource;
+    private final Format defaultTimestampFormat;
 
     /**
      * Constructor.
@@ -88,16 +88,34 @@ public DocumentMemberSerVisitor(
         this.defaultTimestampFormat = defaultTimestampFormat;
     }
 
+    /**
+     * Gets the generation context.
+     *
+     * @return The generation context.
+     */
+    protected final GenerationContext getContext() {
+        return context;
+    }
+
     /**
      * Gets the in-code location of the data to provide an input of
      * ({@code input.foo}, {@code entry}, etc.).
      *
      * @return The data source.
      */
-    protected String getDataSource() {
+    protected final String getDataSource() {
         return dataSource;
     }
 
+    /**
+     * Gets the default timestamp format used in absence of a TimestampFormat trait.
+     *
+     * @return The default timestamp format.
+     */
+    protected final Format getDefaultTimestampFormat() {
+        return defaultTimestampFormat;
+    }
+
     @Override
     public String blobShape(BlobShape shape) {
         return "context.base64Encoder(" + dataSource + ")";