diff --git a/smithy-build/src/test/java/software/amazon/smithy/build/transforms/ExcludeShapesByTagTest.java b/smithy-build/src/test/java/software/amazon/smithy/build/transforms/ExcludeShapesByTagTest.java
index 13bbce20a8b..7a124ced446 100644
--- a/smithy-build/src/test/java/software/amazon/smithy/build/transforms/ExcludeShapesByTagTest.java
+++ b/smithy-build/src/test/java/software/amazon/smithy/build/transforms/ExcludeShapesByTagTest.java
@@ -18,6 +18,7 @@
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.not;
+import static org.junit.jupiter.api.Assertions.assertFalse;
import java.nio.file.Paths;
import java.util.Optional;
@@ -27,6 +28,7 @@
import software.amazon.smithy.model.node.Node;
import software.amazon.smithy.model.shapes.EnumShape;
import software.amazon.smithy.model.shapes.IntEnumShape;
+import software.amazon.smithy.model.shapes.MemberShape;
import software.amazon.smithy.model.shapes.ShapeId;
import software.amazon.smithy.model.shapes.StringShape;
import software.amazon.smithy.model.traits.TagsTrait;
@@ -73,5 +75,9 @@ public void filtersMembers() throws Exception {
IntEnumShape bar = result.expectShape(ShapeId.from("smithy.example#Bar"), IntEnumShape.class);
assertThat(bar.members().size(), is(1));
+
+ // Mixin members are retained, but excluded traits are removed.
+ MemberShape baz = result.expectShape(ShapeId.from("smithy.example#StructForMixin$baz"), MemberShape.class);
+ assertFalse(baz.findMemberTrait(result, "MyTrait").isPresent());
}
}
diff --git a/smithy-build/src/test/java/software/amazon/smithy/build/transforms/ExcludeTraitsByTagTest.java b/smithy-build/src/test/java/software/amazon/smithy/build/transforms/ExcludeTraitsByTagTest.java
index 479d369c199..c29a14feaf6 100644
--- a/smithy-build/src/test/java/software/amazon/smithy/build/transforms/ExcludeTraitsByTagTest.java
+++ b/smithy-build/src/test/java/software/amazon/smithy/build/transforms/ExcludeTraitsByTagTest.java
@@ -25,6 +25,7 @@
import software.amazon.smithy.build.TransformContext;
import software.amazon.smithy.model.Model;
import software.amazon.smithy.model.node.Node;
+import software.amazon.smithy.model.shapes.MemberShape;
import software.amazon.smithy.model.shapes.Shape;
import software.amazon.smithy.model.shapes.ShapeId;
import software.amazon.smithy.model.traits.TraitDefinition;
@@ -47,5 +48,11 @@ public void removesTraitsByTagInList() throws Exception {
assertFalse(traits.contains(ShapeId.from("ns.foo#quux")));
assertTrue(traits.contains(ShapeId.from("ns.foo#bar")));
+
+ // Mixin members are retained, but tagged traits are excluded.
+ MemberShape mixedMember = result.expectShape(ShapeId.from("ns.foo#MyOperationInput$mixedMember"),
+ MemberShape.class);
+ assertFalse(mixedMember.findMemberTrait(result, "ns.foo#corge").isPresent());
+ assertTrue(mixedMember.findMemberTrait(result, "ns.foo#bar").isPresent());
}
}
diff --git a/smithy-build/src/test/resources/software/amazon/smithy/build/transforms/filter-by-tags.smithy b/smithy-build/src/test/resources/software/amazon/smithy/build/transforms/filter-by-tags.smithy
index 76463935bf7..641d99f8483 100644
--- a/smithy-build/src/test/resources/software/amazon/smithy/build/transforms/filter-by-tags.smithy
+++ b/smithy-build/src/test/resources/software/amazon/smithy/build/transforms/filter-by-tags.smithy
@@ -19,3 +19,19 @@ intEnum Bar {
@enumValue(2)
KEEP
}
+
+@trait
+@tags(["filter"])
+string MyTrait
+
+@mixin
+structure MyMixin {
+ @required
+ baz: String
+}
+
+structure StructForMixin with [MyMixin] {
+ bar: String
+}
+
+apply StructForMixin$baz @MyTrait("hello")
diff --git a/smithy-build/src/test/resources/software/amazon/smithy/build/transforms/tree-shaking-traits.json b/smithy-build/src/test/resources/software/amazon/smithy/build/transforms/tree-shaking-traits.json
index d035361868c..33178611d8f 100644
--- a/smithy-build/src/test/resources/software/amazon/smithy/build/transforms/tree-shaking-traits.json
+++ b/smithy-build/src/test/resources/software/amazon/smithy/build/transforms/tree-shaking-traits.json
@@ -31,6 +31,21 @@
]
}
},
+ "ns.foo#corge": {
+ "type": "structure",
+ "members": {
+ "member": {
+ "target": "ns.foo#CorgeTraitShapeMember"
+ }
+ },
+ "traits": {
+ "smithy.api#trait": {},
+ "smithy.api#tags": [
+ "foo",
+ "qux"
+ ]
+ }
+ },
"ns.foo#MyService": {
"type": "service",
"version": "2017-01-19",
@@ -46,6 +61,22 @@
"target": "ns.foo#MyOperationInput"
}
},
+ "ns.foo#MyMixin": {
+ "type": "structure",
+ "members": {
+ "mixedMember": {
+ "target": "smithy.api#String",
+ "traits": {
+ "ns.foo#bar": {
+ "member": "baz"
+ }
+ }
+ }
+ },
+ "traits": {
+ "smithy.api#mixin": {}
+ }
+ },
"ns.foo#MyOperationInput": {
"type": "structure",
"members": {
@@ -55,7 +86,12 @@
"buzz": {
"target": "ns.foo#Include2"
}
- }
+ },
+ "mixins": [
+ {
+ "target": "ns.foo#MyMixin"
+ }
+ ]
},
"ns.foo#Exclude1": {
"type": "string",
@@ -84,6 +120,17 @@
},
"ns.foo#QuuxTraitShapeMember": {
"type": "string"
+ },
+ "ns.foo#CorgeTraitShapeMember": {
+ "type": "string"
+ },
+ "ns.foo#MyOperationInput$mixedMember": {
+ "type": "apply",
+ "traits": {
+ "ns.foo#corge": {
+ "member": "hi"
+ }
+ }
}
}
}
diff --git a/smithy-model/src/main/java/software/amazon/smithy/model/loader/TopologicalShapeSort.java b/smithy-model/src/main/java/software/amazon/smithy/model/loader/TopologicalShapeSort.java
index 4e59d544eaa..878fc504e8f 100644
--- a/smithy-model/src/main/java/software/amazon/smithy/model/loader/TopologicalShapeSort.java
+++ b/smithy-model/src/main/java/software/amazon/smithy/model/loader/TopologicalShapeSort.java
@@ -32,7 +32,7 @@
/**
* Topologically sorts shapes based on their dependencies (i.e., mixins).
*
- * While this class is reusable, is is also stateful; shapes and edges
+ *
While this class is reusable, it is also stateful; shapes and edges
* are enqueued, and when sorted, all shapes and edges are dequeued.
*/
public final class TopologicalShapeSort {
diff --git a/smithy-model/src/main/java/software/amazon/smithy/model/transform/ReplaceShapes.java b/smithy-model/src/main/java/software/amazon/smithy/model/transform/ReplaceShapes.java
index b34e9374649..9ccb30e2259 100644
--- a/smithy-model/src/main/java/software/amazon/smithy/model/transform/ReplaceShapes.java
+++ b/smithy-model/src/main/java/software/amazon/smithy/model/transform/ReplaceShapes.java
@@ -20,6 +20,7 @@
import java.util.ArrayList;
import java.util.Collection;
+import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@@ -189,7 +190,12 @@ private void updateMixins(Model model, Model.Builder builder, List replac
// Add _all_ of the replacements in case mixins or the Mixin trait were removed from updated shapes.
for (Shape shape : replacements) {
- sorter.enqueue(shape);
+ // Enqueue member shapes with empty dependencies since the parent will be enqueued with them.
+ if (shape.isMemberShape()) {
+ sorter.enqueue(shape.getId(), Collections.emptySet());
+ } else {
+ sorter.enqueue(shape);
+ }
}
List sorted = sorter.dequeueSortedShapes();