Fix a template bug concerning @AutoOneOf arrays. Like AutoValue, Auto…

…OneOf allows values to be primitive arrays, but the code template referenced an undefined variable in that case. The implementation of foo.getMyArray() copies the array, so the implementation of equals(Object) checks whether the Object is of the generated subclass, and if so accesses the private myArray field directly. For @autovalue Foo, this subclass is AutoValue_Foo, and the $subclass template variable is set to that. But for @AutoOneOf Foo, there is a subclass per property, and we actually want AutoOneOf_Foo.Impl_myArray. So we need to make sure that $subclass is set to that in the #equalsThatExpression macro.

This requires updating to EscapeVelocity 0.9.1, which allows variable references within strings, like "Impl_$p".

RELNOTES=Primitive arrays now work in @AutoOneOf classes.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=256190191

value/processor/pom.xml

@@ -61,7 +61,7 @@
     <dependency>
       <groupId>com.google.escapevelocity</groupId>
       <artifactId>escapevelocity</artifactId>
-      <version>0.9</version>
+      <version>0.9.1</version>
     </dependency>
     <dependency>
       <groupId>net.ltgt.gradle.incap</groupId>

value/src/it/functional/src/test/java/com/google/auto/value/AutoOneOfTest.java

@@ -470,6 +470,40 @@ public void reservedWordProperty() {
     assertThat(pkg.toString()).isEqualTo("LetterOrPackage{package=pacquet}");
   }
 
+  @AutoOneOf(ArrayValue.Kind.class)
+  public abstract static class ArrayValue {
+    public enum Kind {
+      STRING,
+      INTS
+    }
+
+    public abstract Kind getKind();
+
+    public abstract String string();
+
+    @SuppressWarnings("mutable")
+    public abstract int[] ints();
+
+    public static ArrayValue ofString(String string) {
+      return AutoOneOf_AutoOneOfTest_ArrayValue.string(string);
+    }
+
+    public static ArrayValue ofInts(int[] ints) {
+      return AutoOneOf_AutoOneOfTest_ArrayValue.ints(ints);
+    }
+  }
+
+  @Test
+  public void arrayValues() {
+    ArrayValue string = ArrayValue.ofString("foo");
+    ArrayValue ints1 = ArrayValue.ofInts(new int[] {17, 23});
+    ArrayValue ints2 = ArrayValue.ofInts(new int[] {17, 23});
+    new EqualsTester()
+        .addEqualityGroup(string)
+        .addEqualityGroup(ints1, ints2)
+        .testEquals();
+  }
+
   @Retention(RetentionPolicy.RUNTIME)
   public @interface CopyTest {
     int value();

value/src/main/java/com/google/auto/value/processor/autooneof.vm

@@ -189,7 +189,7 @@ final class $generatedClass {
       if (x instanceof $origClass) {
         $origClass$wildcardTypes that = ($origClass$wildcardTypes) x;
         return this.${kindGetter}() == that.${kindGetter}()
-            && #equalsThatExpression($p);
+            && #equalsThatExpression($p "Impl_$p");
       } else {
         return false;
       }

value/src/main/java/com/google/auto/value/processor/autovalue.vm

@@ -145,7 +145,7 @@ ${modifiers}class $subclass$formalTypes extends $origClass$actualTypes {
       $origClass$wildcardTypes that = ($origClass$wildcardTypes) o;
       return ##
           #foreach ($p in $props)
-          #equalsThatExpression ($p)##
+          #equalsThatExpression ($p $subclass)##
             #if ($foreach.hasNext)
 
           && ##

value/src/main/java/com/google/auto/value/processor/equalshashcode.vm

@@ -40,7 +40,7 @@
 ## The expression should be surrounded by parentheses if otherwise there might be precedence
 ## problems when it is followed by &&.
 ## A reminder that trailing ## here serves to delete the newline, which we don't want in the output.
-#macro (equalsThatExpression $p)
+#macro (equalsThatExpression $p $subclass)
   #if ($p.kind == "FLOAT")
     Float.floatToIntBits(this.$p) == Float.floatToIntBits(that.${p.getter}()) ##
   #elseif ($p.kind == "DOUBLE")