Warn when referenced style is not defined

2 files changed, 18 insertions, 0 deletions

diff --git a/src/main/java/org/zwobble/mammoth/results/Result.java b/src/main/java/org/zwobble/mammoth/results/Result.java
index 846841e..be0819a 100644
--- a/src/main/java/org/zwobble/mammoth/results/Result.java
+++ b/src/main/java/org/zwobble/mammoth/results/Result.java
@@ -1,8 +1,10 @@
 package org.zwobble.mammoth.results;
 
 import com.google.common.collect.ImmutableList;
+import org.zwobble.mammoth.documents.Style;
 
 import java.util.List;
+import java.util.Optional;
 import java.util.function.Function;
 
 import static org.zwobble.mammoth.util.MammothLists.list;
@@ -18,6 +20,10 @@ public class Result<T> {
         return new Result<>(elements.build(), warnings.build());
     }
 
+    public static Result<Optional<Style>> empty() {
+        return new Result<>(Optional.empty(), list());
+    }
+
     public static <T> Result<T> success(T value) {
         return new Result<>(value, list());
     }
diff --git a/src/main/java/org/zwobble/mammoth/results/Warning.java b/src/main/java/org/zwobble/mammoth/results/Warning.java
index c1b4e4b..25579c2 100644
--- a/src/main/java/org/zwobble/mammoth/results/Warning.java
+++ b/src/main/java/org/zwobble/mammoth/results/Warning.java
@@ -1,4 +1,16 @@
 package org.zwobble.mammoth.results;
 
 public class Warning {
+    public static Warning warning(String message) {
+        return new Warning(message);
+    }
+    private final String message;
+
+    private Warning(String message) {
+        this.message = message;
+    }
+
+    public String getMessage() {
+        return message;
+    }
 }