Add ChunkResolver to partially resolve expressions

src/main/java/com/hubspot/jinjava/interpret/Context.java

@@ -93,6 +93,7 @@ public enum Library {
   private final Stack<String> renderStack = new Stack<>();
 
   private boolean validationMode = false;
+  private boolean hideInterpreterErrors = false;
 
   public Context() {
     this(null, null, null);
@@ -526,4 +527,12 @@ public void addDependencies(SetMultimap<String, String> dependencies) {
   public SetMultimap<String, String> getDependencies() {
     return this.dependencies;
   }
+
+  public boolean getHideInterpreterErrors() {
+    return hideInterpreterErrors;
+  }
+
+  public void setHideInterpreterErrors(boolean hideInterpreterErrors) {
+    this.hideInterpreterErrors = hideInterpreterErrors;
+  }
 }

src/main/java/com/hubspot/jinjava/objects/date/JsonPyishDateSerializer.java

@@ -0,0 +1,24 @@
+package com.hubspot.jinjava.objects.date;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.databind.JsonSerializer;
+import com.fasterxml.jackson.databind.SerializerProvider;
+import java.io.IOException;
+import java.time.format.DateTimeFormatter;
+
+public class JsonPyishDateSerializer extends JsonSerializer<PyishDate> {
+
+  @Override
+  public void serialize(
+    PyishDate pyishDate,
+    JsonGenerator jsonGenerator,
+    SerializerProvider serializerProvider
+  )
+    throws IOException {
+    jsonGenerator.writeString(
+      DateTimeFormatter
+        .ofPattern(PyishDate.PYISH_DATE_FORMAT)
+        .format(pyishDate.toDateTime())
+    );
+  }
+}

src/main/java/com/hubspot/jinjava/objects/date/PyishDate.java

@@ -19,6 +19,7 @@
  */
 public final class PyishDate extends Date implements Serializable, PyWrapper {
   private static final long serialVersionUID = 1L;
+  public static final String PYISH_DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
 
   private final ZonedDateTime date;
 
@@ -102,7 +103,7 @@ public ZonedDateTime toDateTime() {
 
   @Override
   public String toString() {
-    return strftime("yyyy-MM-dd HH:mm:ss");
+    return strftime(PYISH_DATE_FORMAT);
   }
 
   @Override