1 files changed, 17 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/skylarkinterface/Param.java b/src/main/java/com/google/devtools/build/lib/skylarkinterface/Param.java
index 845cb27963..4bbf10ad5d 100644
--- a/src/main/java/com/google/devtools/build/lib/skylarkinterface/Param.java
+++ b/src/main/java/com/google/devtools/build/lib/skylarkinterface/Param.java
@@ -67,6 +67,23 @@ public @interface Param {
    */
   boolean noneable() default false;
 
+  /**
+   * If true, the parameter may be specified as a named parameter. For example for an integer named
+   * parameter {@code foo} of a method {@code bar}, then the method call will look like
+   * {@code foo(bar=1)}.
+   */
+  boolean named() default false;
+
+  /**
+   * If true, the parameter may be specified as a positional parameter.  For example for an integer
+   * positional parameter {@code foo} of a method {@code bar}, then the method call will look like
+   * {@code foo(1)}. If {@link #named()} is {@code false}, then this will be the only way to call
+   * {@code foo}.
+   *
+   * <p>Positional arguments should comes first.
+   */
+  boolean positional() default true;
+
   // TODO(bazel-team): parse the type from a single field in Skylark syntax,
   // and allow a Union as "ThisType or ThatType or NoneType":
   // String type() default "Object";