diff --git a/libraries/apollo-compiler/src/main/kotlin/com/apollographql/apollo/compiler/internal/addRequiredFields.kt b/libraries/apollo-compiler/src/main/kotlin/com/apollographql/apollo/compiler/internal/addRequiredFields.kt
index 5527c50d5ce..d1c05a23a4b 100644
--- a/libraries/apollo-compiler/src/main/kotlin/com/apollographql/apollo/compiler/internal/addRequiredFields.kt
+++ b/libraries/apollo-compiler/src/main/kotlin/com/apollographql/apollo/compiler/internal/addRequiredFields.kt
@@ -10,6 +10,7 @@ import com.apollographql.apollo.ast.Schema
 import com.apollographql.apollo.ast.definitionFromScope
 import com.apollographql.apollo.ast.isAbstract
 import com.apollographql.apollo.ast.rawType
+import com.apollographql.apollo.ast.responseName
 import com.apollographql.apollo.ast.rootTypeDefinition
 import com.apollographql.apollo.compiler.ADD_TYPENAME_ALWAYS
 import com.apollographql.apollo.compiler.ADD_TYPENAME_IF_ABSTRACT
@@ -94,7 +95,7 @@ private fun List<GQLSelection>.addRequiredFields(
     requiredFieldNames.add("__typename")
   }
 
-  val fieldNames = parentFields + selectionSet.filterIsInstance<GQLField>().map { it.name }.toSet()
+  val fieldNames = parentFields + selectionSet.filterIsInstance<GQLField>().map { it.responseName() }.toSet()
 
   var newSelections = selectionSet.map {
     when (it) {
diff --git a/libraries/apollo-compiler/src/main/kotlin/com/apollographql/apollo/compiler/internal/checkKeyFields.kt b/libraries/apollo-compiler/src/main/kotlin/com/apollographql/apollo/compiler/internal/checkKeyFields.kt
index 0152857142e..cec01740b26 100644
--- a/libraries/apollo-compiler/src/main/kotlin/com/apollographql/apollo/compiler/internal/checkKeyFields.kt
+++ b/libraries/apollo-compiler/src/main/kotlin/com/apollographql/apollo/compiler/internal/checkKeyFields.kt
@@ -39,7 +39,11 @@ internal fun checkKeyFields(
     schema: Schema,
     allFragmentDefinitions: Map<String, GQLFragmentDefinition>,
 ) {
-  CheckKeyFieldsScope(schema, allFragmentDefinitions).checkField("Fragment(${fragmentDefinition.name})", fragmentDefinition.selections, fragmentDefinition.typeCondition.name)
+  CheckKeyFieldsScope(schema, allFragmentDefinitions).checkField(
+      "Fragment(${fragmentDefinition.name})",
+      fragmentDefinition.selections,
+      fragmentDefinition.typeCondition.name
+  )
 }
 
 private fun CheckKeyFieldsScope.checkField(
@@ -61,9 +65,9 @@ private fun CheckKeyFieldsScope.checkFieldSet(path: String, selections: List<GQL
 
   if (implementedTypes.contains(parentType)) {
     // only check types that are actually possible
-    val fieldNames = mergedFields.map { it.first().field }
-        .filter { it.alias == null }
-        .map { it.name }.toSet()
+    val fieldNames = mergedFields
+        .flatMap { it.filter { it.field.alias == null }.map { it.field.name } }
+        .toSet()
     val keyFieldNames = keyFields(possibleType)
 
     val missingFieldNames = keyFieldNames.subtract(fieldNames)
@@ -101,6 +105,7 @@ private fun CheckKeyFieldsScope.collectFields(
 
         listOf(FieldWithParent(it, parentType))
       }
+
       is GQLInlineFragment -> {
         if (it.directives.hasCondition()) {
           return@flatMap emptyList()
@@ -108,6 +113,7 @@ private fun CheckKeyFieldsScope.collectFields(
 
         collectFields(it.selections, it.typeCondition?.name ?: parentType, implementedTypes)
       }
+
       is GQLFragmentSpread -> {
         if (it.directives.hasCondition()) {
           return@flatMap emptyList()
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/TestOperation.graphql b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/TestOperation.graphql
new file mode 100644
index 00000000000..7d4e7b6543d
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/TestOperation.graphql
@@ -0,0 +1,15 @@
+query GetA {
+  a {
+    ...AFragment1
+  }
+}
+
+fragment AFragment1 on A {
+  foo
+  ...AFragment2
+}
+
+fragment AFragment2 on A {
+  bar
+  myId: id
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/GetA.java.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/GetA.java.expected
new file mode 100644
index 00000000000..f2502ec4eed
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/GetA.java.expected
@@ -0,0 +1,278 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy;
+
+import com.apollographql.apollo.api.Adapter;
+import com.apollographql.apollo.api.CompiledField;
+import com.apollographql.apollo.api.CustomScalarAdapters;
+import com.apollographql.apollo.api.ExecutableDefinition;
+import com.apollographql.apollo.api.ObjectAdapter;
+import com.apollographql.apollo.api.Query;
+import com.apollographql.apollo.api.json.JsonWriter;
+import com.example.typepolicy.adapter.GetA_ResponseAdapter;
+import com.example.typepolicy.fragment.AFragment1;
+import com.example.typepolicy.selections.GetASelections;
+import java.io.IOException;
+import java.lang.Object;
+import java.lang.Override;
+import java.lang.String;
+import java.lang.SuppressWarnings;
+
+public class GetA implements Query<GetA.Data> {
+  public static ExecutableDefinition<Data> definition = new Definition();
+
+  public static final String OPERATION_ID = "64f5865843b43e7efa316fea6e9f6b175f0bc5d262d317306109dd68613547e4";
+
+  /**
+   * The minimized GraphQL document being sent to the server to save a few bytes.
+   * The un-minimized version is:
+   *
+   * query GetA {
+   *   a {
+   *     __typename
+   *     ...AFragment1
+   *     id
+   *   }
+   * }
+   *
+   * fragment AFragment2 on A {
+   *   bar
+   *   myId: id
+   *   id
+   *   __typename
+   * }
+   *
+   * fragment AFragment1 on A {
+   *   __typename
+   *   foo
+   *   ...AFragment2
+   *   id
+   * }
+   */
+  public static final String OPERATION_DOCUMENT = "query GetA { a { __typename ...AFragment1 id } }  fragment AFragment2 on A { bar myId: id id __typename }  fragment AFragment1 on A { __typename foo ...AFragment2 id }";
+
+  public static final String OPERATION_NAME = "GetA";
+
+  private transient volatile int $hashCode;
+
+  private transient volatile boolean $hashCodeMemoized;
+
+  private transient volatile String $toString;
+
+  public GetA() {
+
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o instanceof GetA) {
+      return true;
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    if (!$hashCodeMemoized) {
+      int __h = 1;
+      $hashCode = __h;
+      $hashCodeMemoized = true;
+    }
+    return $hashCode;
+  }
+
+  @Override
+  public String toString() {
+    if ($toString == null) {
+      $toString = "GetA{"
+        + "}";
+    }
+    return $toString;
+  }
+
+  public static Builder builder() {
+    return new Builder();
+  }
+
+  @Override
+  public String id() {
+    return OPERATION_ID;
+  }
+
+  @Override
+  public String document() {
+    return OPERATION_DOCUMENT;
+  }
+
+  @Override
+  public String name() {
+    return OPERATION_NAME;
+  }
+
+  @Override
+  public void serializeVariables(JsonWriter writer, CustomScalarAdapters customScalarAdapters,
+      boolean withDefaultValues) throws IOException {
+    // This operation doesn't have any variable
+  }
+
+  @Override
+  public Adapter<Data> adapter() {
+    return new ObjectAdapter<Data>(GetA_ResponseAdapter.Data.INSTANCE, false);
+  }
+
+  @Override
+  public CompiledField rootField() {
+    return new CompiledField.Builder(
+      "data",
+      com.example.typepolicy.type.Query.type
+    )
+    .selections(GetASelections.__root)
+    .build();
+  }
+
+  @SuppressWarnings("unchecked")
+  public static final class Builder {
+    Builder() {
+    }
+
+    public GetA build() {
+      return new GetA();
+    }
+  }
+
+  private static class Definition implements ExecutableDefinition<Data> {
+    @Override
+    public Adapter<Data> getADAPTER() {
+      return new ObjectAdapter<Data>(GetA_ResponseAdapter.Data.INSTANCE, false);
+    }
+
+    @Override
+    public CompiledField getROOT_FIELD() {
+      return new CompiledField.Builder(
+        "data",
+        com.example.typepolicy.type.Query.type
+      )
+      .selections(GetASelections.__root)
+      .build();
+    }
+  }
+
+  public static class Data implements Query.Data {
+    public A a;
+
+    private transient volatile int $hashCode;
+
+    private transient volatile boolean $hashCodeMemoized;
+
+    private transient volatile String $toString;
+
+    public Data(A a) {
+      this.a = a;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+      if (o == this) {
+        return true;
+      }
+      if (o instanceof Data) {
+        Data that = (Data) o;
+        return ((this.a == null) ? (that.a == null) : this.a.equals(that.a));
+      }
+      return false;
+    }
+
+    @Override
+    public int hashCode() {
+      if (!$hashCodeMemoized) {
+        int __h = 1;
+        __h *= 1000003;
+        __h ^= (a == null) ? 0 : a.hashCode();
+        $hashCode = __h;
+        $hashCodeMemoized = true;
+      }
+      return $hashCode;
+    }
+
+    @Override
+    public String toString() {
+      if ($toString == null) {
+        $toString = "Data{"
+          + "a=" + a
+          + "}";
+      }
+      return $toString;
+    }
+  }
+
+  public static class A {
+    public String __typename;
+
+    public String id;
+
+    /**
+     * Synthetic field for 'AFragment1'
+     */
+    public AFragment1 aFragment1;
+
+    private transient volatile int $hashCode;
+
+    private transient volatile boolean $hashCodeMemoized;
+
+    private transient volatile String $toString;
+
+    public A(String __typename, String id, AFragment1 aFragment1) {
+      this.__typename = __typename;
+      this.id = id;
+      this.aFragment1 = aFragment1;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+      if (o == this) {
+        return true;
+      }
+      if (o instanceof A) {
+        A that = (A) o;
+        return ((this.__typename == null) ? (that.__typename == null) : this.__typename.equals(that.__typename))
+         &&((this.id == null) ? (that.id == null) : this.id.equals(that.id))
+         &&((this.aFragment1 == null) ? (that.aFragment1 == null) : this.aFragment1.equals(that.aFragment1));
+      }
+      return false;
+    }
+
+    @Override
+    public int hashCode() {
+      if (!$hashCodeMemoized) {
+        int __h = 1;
+        __h *= 1000003;
+        __h ^= (__typename == null) ? 0 : __typename.hashCode();
+        __h *= 1000003;
+        __h ^= (id == null) ? 0 : id.hashCode();
+        __h *= 1000003;
+        __h ^= (aFragment1 == null) ? 0 : aFragment1.hashCode();
+        $hashCode = __h;
+        $hashCodeMemoized = true;
+      }
+      return $hashCode;
+    }
+
+    @Override
+    public String toString() {
+      if ($toString == null) {
+        $toString = "A{"
+          + "__typename=" + __typename + ", "
+          + "id=" + id + ", "
+          + "aFragment1=" + aFragment1
+          + "}";
+      }
+      return $toString;
+    }
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/adapter/GetA_ResponseAdapter.java.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/adapter/GetA_ResponseAdapter.java.expected
new file mode 100644
index 00000000000..b7b792d78eb
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/adapter/GetA_ResponseAdapter.java.expected
@@ -0,0 +1,104 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.adapter;
+
+import com.apollographql.apollo.api.Adapter;
+import com.apollographql.apollo.api.Adapters;
+import com.apollographql.apollo.api.Assertions;
+import com.apollographql.apollo.api.CustomScalarAdapters;
+import com.apollographql.apollo.api.NullableAdapter;
+import com.apollographql.apollo.api.ObjectAdapter;
+import com.apollographql.apollo.api.json.JsonReader;
+import com.apollographql.apollo.api.json.JsonWriter;
+import com.example.typepolicy.GetA;
+import com.example.typepolicy.fragment.AFragment1;
+import java.io.IOException;
+import java.lang.Override;
+import java.lang.String;
+import java.lang.SuppressWarnings;
+import java.util.Arrays;
+import java.util.List;
+
+public class GetA_ResponseAdapter {
+  public enum Data implements Adapter<GetA.Data> {
+    INSTANCE;
+
+    private static final List<String> RESPONSE_NAMES = Arrays.asList("a");
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public GetA.Data fromJson(JsonReader reader, CustomScalarAdapters customScalarAdapters) throws
+        IOException {
+      GetA.A _a = null;
+
+      loop:
+      while(true) {
+        switch (reader.selectName(RESPONSE_NAMES)) {
+          case 0: _a = new NullableAdapter<>(new ObjectAdapter<GetA.A>(A.INSTANCE, true)).fromJson(reader, customScalarAdapters); break;
+          default: break loop;
+        }
+      }
+
+      return new GetA.Data(
+        _a
+      );
+    }
+
+    @Override
+    public void toJson(JsonWriter writer, CustomScalarAdapters customScalarAdapters,
+        GetA.Data value) throws IOException {
+      writer.name("a");
+      new NullableAdapter<>(new ObjectAdapter<GetA.A>(A.INSTANCE, true)).toJson(writer, customScalarAdapters, value.a);
+    }
+  }
+
+  public enum A implements Adapter<GetA.A> {
+    INSTANCE;
+
+    private static final List<String> RESPONSE_NAMES = Arrays.asList("__typename", "id");
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public GetA.A fromJson(JsonReader reader, CustomScalarAdapters customScalarAdapters) throws
+        IOException {
+      String __typename = null;
+      String _id = null;
+
+      loop:
+      while(true) {
+        switch (reader.selectName(RESPONSE_NAMES)) {
+          case 0: __typename = Adapters.StringAdapter.fromJson(reader, customScalarAdapters); break;
+          case 1: _id = Adapters.StringAdapter.fromJson(reader, customScalarAdapters); break;
+          default: break loop;
+        }
+      }
+
+      reader.rewind();
+      AFragment1 _aFragment1 = com.example.typepolicy.fragment.AFragment1Impl_ResponseAdapter.AFragment1.INSTANCE.fromJson(reader, customScalarAdapters);
+
+      Assertions.checkFieldNotMissing(__typename, "__typename");
+      Assertions.checkFieldNotMissing(_id, "id");
+
+      return new GetA.A(
+        __typename,
+        _id,
+        _aFragment1
+      );
+    }
+
+    @Override
+    public void toJson(JsonWriter writer, CustomScalarAdapters customScalarAdapters, GetA.A value)
+        throws IOException {
+      writer.name("__typename");
+      Adapters.StringAdapter.toJson(writer, customScalarAdapters, value.__typename);
+
+      writer.name("id");
+      Adapters.StringAdapter.toJson(writer, customScalarAdapters, value.id);
+
+      com.example.typepolicy.fragment.AFragment1Impl_ResponseAdapter.AFragment1.INSTANCE.toJson(writer, customScalarAdapters, value.aFragment1);
+    }
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment1.java.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment1.java.expected
new file mode 100644
index 00000000000..731408ade75
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment1.java.expected
@@ -0,0 +1,83 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment;
+
+import com.apollographql.apollo.api.Fragment;
+import java.lang.Object;
+import java.lang.Override;
+import java.lang.String;
+
+public class AFragment1 implements Fragment.Data {
+  public String __typename;
+
+  public String foo;
+
+  public String id;
+
+  /**
+   * Synthetic field for 'AFragment2'
+   */
+  public AFragment2 aFragment2;
+
+  private transient volatile int $hashCode;
+
+  private transient volatile boolean $hashCodeMemoized;
+
+  private transient volatile String $toString;
+
+  public AFragment1(String __typename, String foo, String id, AFragment2 aFragment2) {
+    this.__typename = __typename;
+    this.foo = foo;
+    this.id = id;
+    this.aFragment2 = aFragment2;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o instanceof AFragment1) {
+      AFragment1 that = (AFragment1) o;
+      return ((this.__typename == null) ? (that.__typename == null) : this.__typename.equals(that.__typename))
+       &&((this.foo == null) ? (that.foo == null) : this.foo.equals(that.foo))
+       &&((this.id == null) ? (that.id == null) : this.id.equals(that.id))
+       &&((this.aFragment2 == null) ? (that.aFragment2 == null) : this.aFragment2.equals(that.aFragment2));
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    if (!$hashCodeMemoized) {
+      int __h = 1;
+      __h *= 1000003;
+      __h ^= (__typename == null) ? 0 : __typename.hashCode();
+      __h *= 1000003;
+      __h ^= (foo == null) ? 0 : foo.hashCode();
+      __h *= 1000003;
+      __h ^= (id == null) ? 0 : id.hashCode();
+      __h *= 1000003;
+      __h ^= (aFragment2 == null) ? 0 : aFragment2.hashCode();
+      $hashCode = __h;
+      $hashCodeMemoized = true;
+    }
+    return $hashCode;
+  }
+
+  @Override
+  public String toString() {
+    if ($toString == null) {
+      $toString = "AFragment1{"
+        + "__typename=" + __typename + ", "
+        + "foo=" + foo + ", "
+        + "id=" + id + ", "
+        + "aFragment2=" + aFragment2
+        + "}";
+    }
+    return $toString;
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment1Impl.java.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment1Impl.java.expected
new file mode 100644
index 00000000000..20e745937b0
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment1Impl.java.expected
@@ -0,0 +1,82 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment;
+
+import com.apollographql.apollo.api.Adapter;
+import com.apollographql.apollo.api.CompiledField;
+import com.apollographql.apollo.api.CustomScalarAdapters;
+import com.apollographql.apollo.api.Fragment;
+import com.apollographql.apollo.api.ObjectAdapter;
+import com.apollographql.apollo.api.json.JsonWriter;
+import com.example.typepolicy.fragment.selections.AFragment1Selections;
+import com.example.typepolicy.type.A;
+import java.io.IOException;
+import java.lang.Object;
+import java.lang.Override;
+import java.lang.String;
+
+public class AFragment1Impl implements Fragment<AFragment1> {
+  private transient volatile int $hashCode;
+
+  private transient volatile boolean $hashCodeMemoized;
+
+  private transient volatile String $toString;
+
+  public AFragment1Impl() {
+
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o instanceof AFragment1Impl) {
+      return true;
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    if (!$hashCodeMemoized) {
+      int __h = 1;
+      $hashCode = __h;
+      $hashCodeMemoized = true;
+    }
+    return $hashCode;
+  }
+
+  @Override
+  public String toString() {
+    if ($toString == null) {
+      $toString = "AFragment1Impl{"
+        + "}";
+    }
+    return $toString;
+  }
+
+  @Override
+  public void serializeVariables(JsonWriter writer, CustomScalarAdapters customScalarAdapters,
+      boolean withDefaultValues) throws IOException {
+    // This fragment doesn't have any variable
+  }
+
+  @Override
+  public Adapter<AFragment1> adapter() {
+    return new ObjectAdapter<AFragment1>(AFragment1Impl_ResponseAdapter.AFragment1.INSTANCE, true);
+  }
+
+  @Override
+  public CompiledField rootField() {
+    return new CompiledField.Builder(
+      "data",
+      A.type
+    )
+    .selections(AFragment1Selections.__root)
+    .build();
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment1Impl_ResponseAdapter.java.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment1Impl_ResponseAdapter.java.expected
new file mode 100644
index 00000000000..17ec29e690f
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment1Impl_ResponseAdapter.java.expected
@@ -0,0 +1,74 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment;
+
+import com.apollographql.apollo.api.Adapter;
+import com.apollographql.apollo.api.Adapters;
+import com.apollographql.apollo.api.Assertions;
+import com.apollographql.apollo.api.CustomScalarAdapters;
+import com.apollographql.apollo.api.json.JsonReader;
+import com.apollographql.apollo.api.json.JsonWriter;
+import java.io.IOException;
+import java.lang.Override;
+import java.lang.String;
+import java.lang.SuppressWarnings;
+import java.util.Arrays;
+import java.util.List;
+
+public class AFragment1Impl_ResponseAdapter {
+  public enum AFragment1 implements Adapter<com.example.typepolicy.fragment.AFragment1> {
+    INSTANCE;
+
+    private static final List<String> RESPONSE_NAMES = Arrays.asList("__typename", "foo", "id");
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public com.example.typepolicy.fragment.AFragment1 fromJson(JsonReader reader,
+        CustomScalarAdapters customScalarAdapters) throws IOException {
+      String __typename = null;
+      String _foo = null;
+      String _id = null;
+
+      loop:
+      while(true) {
+        switch (reader.selectName(RESPONSE_NAMES)) {
+          case 0: __typename = Adapters.StringAdapter.fromJson(reader, customScalarAdapters); break;
+          case 1: _foo = Adapters.NullableStringAdapter.fromJson(reader, customScalarAdapters); break;
+          case 2: _id = Adapters.StringAdapter.fromJson(reader, customScalarAdapters); break;
+          default: break loop;
+        }
+      }
+
+      reader.rewind();
+      AFragment2 _aFragment2 = com.example.typepolicy.fragment.AFragment2Impl_ResponseAdapter.AFragment2.INSTANCE.fromJson(reader, customScalarAdapters);
+
+      Assertions.checkFieldNotMissing(__typename, "__typename");
+      Assertions.checkFieldNotMissing(_id, "id");
+
+      return new com.example.typepolicy.fragment.AFragment1(
+        __typename,
+        _foo,
+        _id,
+        _aFragment2
+      );
+    }
+
+    @Override
+    public void toJson(JsonWriter writer, CustomScalarAdapters customScalarAdapters,
+        com.example.typepolicy.fragment.AFragment1 value) throws IOException {
+      writer.name("__typename");
+      Adapters.StringAdapter.toJson(writer, customScalarAdapters, value.__typename);
+
+      writer.name("foo");
+      Adapters.NullableStringAdapter.toJson(writer, customScalarAdapters, value.foo);
+
+      writer.name("id");
+      Adapters.StringAdapter.toJson(writer, customScalarAdapters, value.id);
+
+      com.example.typepolicy.fragment.AFragment2Impl_ResponseAdapter.AFragment2.INSTANCE.toJson(writer, customScalarAdapters, value.aFragment2);
+    }
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment2.java.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment2.java.expected
new file mode 100644
index 00000000000..eeca3a02586
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment2.java.expected
@@ -0,0 +1,80 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment;
+
+import com.apollographql.apollo.api.Fragment;
+import java.lang.Object;
+import java.lang.Override;
+import java.lang.String;
+
+public class AFragment2 implements Fragment.Data {
+  public String bar;
+
+  public String myId;
+
+  public String id;
+
+  public String __typename;
+
+  private transient volatile int $hashCode;
+
+  private transient volatile boolean $hashCodeMemoized;
+
+  private transient volatile String $toString;
+
+  public AFragment2(String bar, String myId, String id, String __typename) {
+    this.bar = bar;
+    this.myId = myId;
+    this.id = id;
+    this.__typename = __typename;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o instanceof AFragment2) {
+      AFragment2 that = (AFragment2) o;
+      return ((this.bar == null) ? (that.bar == null) : this.bar.equals(that.bar))
+       &&((this.myId == null) ? (that.myId == null) : this.myId.equals(that.myId))
+       &&((this.id == null) ? (that.id == null) : this.id.equals(that.id))
+       &&((this.__typename == null) ? (that.__typename == null) : this.__typename.equals(that.__typename));
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    if (!$hashCodeMemoized) {
+      int __h = 1;
+      __h *= 1000003;
+      __h ^= (bar == null) ? 0 : bar.hashCode();
+      __h *= 1000003;
+      __h ^= (myId == null) ? 0 : myId.hashCode();
+      __h *= 1000003;
+      __h ^= (id == null) ? 0 : id.hashCode();
+      __h *= 1000003;
+      __h ^= (__typename == null) ? 0 : __typename.hashCode();
+      $hashCode = __h;
+      $hashCodeMemoized = true;
+    }
+    return $hashCode;
+  }
+
+  @Override
+  public String toString() {
+    if ($toString == null) {
+      $toString = "AFragment2{"
+        + "bar=" + bar + ", "
+        + "myId=" + myId + ", "
+        + "id=" + id + ", "
+        + "__typename=" + __typename
+        + "}";
+    }
+    return $toString;
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment2Impl.java.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment2Impl.java.expected
new file mode 100644
index 00000000000..a78e9efd906
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment2Impl.java.expected
@@ -0,0 +1,82 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment;
+
+import com.apollographql.apollo.api.Adapter;
+import com.apollographql.apollo.api.CompiledField;
+import com.apollographql.apollo.api.CustomScalarAdapters;
+import com.apollographql.apollo.api.Fragment;
+import com.apollographql.apollo.api.ObjectAdapter;
+import com.apollographql.apollo.api.json.JsonWriter;
+import com.example.typepolicy.fragment.selections.AFragment2Selections;
+import com.example.typepolicy.type.A;
+import java.io.IOException;
+import java.lang.Object;
+import java.lang.Override;
+import java.lang.String;
+
+public class AFragment2Impl implements Fragment<AFragment2> {
+  private transient volatile int $hashCode;
+
+  private transient volatile boolean $hashCodeMemoized;
+
+  private transient volatile String $toString;
+
+  public AFragment2Impl() {
+
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o instanceof AFragment2Impl) {
+      return true;
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    if (!$hashCodeMemoized) {
+      int __h = 1;
+      $hashCode = __h;
+      $hashCodeMemoized = true;
+    }
+    return $hashCode;
+  }
+
+  @Override
+  public String toString() {
+    if ($toString == null) {
+      $toString = "AFragment2Impl{"
+        + "}";
+    }
+    return $toString;
+  }
+
+  @Override
+  public void serializeVariables(JsonWriter writer, CustomScalarAdapters customScalarAdapters,
+      boolean withDefaultValues) throws IOException {
+    // This fragment doesn't have any variable
+  }
+
+  @Override
+  public Adapter<AFragment2> adapter() {
+    return new ObjectAdapter<AFragment2>(AFragment2Impl_ResponseAdapter.AFragment2.INSTANCE, false);
+  }
+
+  @Override
+  public CompiledField rootField() {
+    return new CompiledField.Builder(
+      "data",
+      A.type
+    )
+    .selections(AFragment2Selections.__root)
+    .build();
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment2Impl_ResponseAdapter.java.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment2Impl_ResponseAdapter.java.expected
new file mode 100644
index 00000000000..bdefa76f89c
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/AFragment2Impl_ResponseAdapter.java.expected
@@ -0,0 +1,75 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment;
+
+import com.apollographql.apollo.api.Adapter;
+import com.apollographql.apollo.api.Adapters;
+import com.apollographql.apollo.api.Assertions;
+import com.apollographql.apollo.api.CustomScalarAdapters;
+import com.apollographql.apollo.api.json.JsonReader;
+import com.apollographql.apollo.api.json.JsonWriter;
+import java.io.IOException;
+import java.lang.Override;
+import java.lang.String;
+import java.lang.SuppressWarnings;
+import java.util.Arrays;
+import java.util.List;
+
+public class AFragment2Impl_ResponseAdapter {
+  public enum AFragment2 implements Adapter<com.example.typepolicy.fragment.AFragment2> {
+    INSTANCE;
+
+    private static final List<String> RESPONSE_NAMES = Arrays.asList("bar", "myId", "id", "__typename");
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public com.example.typepolicy.fragment.AFragment2 fromJson(JsonReader reader,
+        CustomScalarAdapters customScalarAdapters) throws IOException {
+      String _bar = null;
+      String _myId = null;
+      String _id = null;
+      String __typename = null;
+
+      loop:
+      while(true) {
+        switch (reader.selectName(RESPONSE_NAMES)) {
+          case 0: _bar = Adapters.NullableStringAdapter.fromJson(reader, customScalarAdapters); break;
+          case 1: _myId = Adapters.StringAdapter.fromJson(reader, customScalarAdapters); break;
+          case 2: _id = Adapters.StringAdapter.fromJson(reader, customScalarAdapters); break;
+          case 3: __typename = Adapters.StringAdapter.fromJson(reader, customScalarAdapters); break;
+          default: break loop;
+        }
+      }
+
+      Assertions.checkFieldNotMissing(_myId, "myId");
+      Assertions.checkFieldNotMissing(_id, "id");
+      Assertions.checkFieldNotMissing(__typename, "__typename");
+
+      return new com.example.typepolicy.fragment.AFragment2(
+        _bar,
+        _myId,
+        _id,
+        __typename
+      );
+    }
+
+    @Override
+    public void toJson(JsonWriter writer, CustomScalarAdapters customScalarAdapters,
+        com.example.typepolicy.fragment.AFragment2 value) throws IOException {
+      writer.name("bar");
+      Adapters.NullableStringAdapter.toJson(writer, customScalarAdapters, value.bar);
+
+      writer.name("myId");
+      Adapters.StringAdapter.toJson(writer, customScalarAdapters, value.myId);
+
+      writer.name("id");
+      Adapters.StringAdapter.toJson(writer, customScalarAdapters, value.id);
+
+      writer.name("__typename");
+      Adapters.StringAdapter.toJson(writer, customScalarAdapters, value.__typename);
+    }
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/selections/AFragment1Selections.java.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/selections/AFragment1Selections.java.expected
new file mode 100644
index 00000000000..a346dbfaebd
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/selections/AFragment1Selections.java.expected
@@ -0,0 +1,26 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment.selections;
+
+import com.apollographql.apollo.api.CompiledField;
+import com.apollographql.apollo.api.CompiledFragment;
+import com.apollographql.apollo.api.CompiledNotNullType;
+import com.apollographql.apollo.api.CompiledSelection;
+import com.example.typepolicy.type.GraphQLID;
+import com.example.typepolicy.type.GraphQLString;
+import java.lang.SuppressWarnings;
+import java.util.Arrays;
+import java.util.List;
+
+@SuppressWarnings("unchecked")
+public class AFragment1Selections {
+  public static List<CompiledSelection> __root = Arrays.asList(
+    new CompiledField.Builder("__typename", new CompiledNotNullType(GraphQLString.type)).build(),
+    new CompiledField.Builder("foo", GraphQLString.type).build(),
+    new CompiledFragment.Builder("A", Arrays.asList("A")).selections(AFragment2Selections.__root).build(),
+    new CompiledField.Builder("id", new CompiledNotNullType(GraphQLID.type)).build()
+  );
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/selections/AFragment2Selections.java.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/selections/AFragment2Selections.java.expected
new file mode 100644
index 00000000000..b7b7db61700
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/fragment/selections/AFragment2Selections.java.expected
@@ -0,0 +1,25 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment.selections;
+
+import com.apollographql.apollo.api.CompiledField;
+import com.apollographql.apollo.api.CompiledNotNullType;
+import com.apollographql.apollo.api.CompiledSelection;
+import com.example.typepolicy.type.GraphQLID;
+import com.example.typepolicy.type.GraphQLString;
+import java.lang.SuppressWarnings;
+import java.util.Arrays;
+import java.util.List;
+
+@SuppressWarnings("unchecked")
+public class AFragment2Selections {
+  public static List<CompiledSelection> __root = Arrays.asList(
+    new CompiledField.Builder("bar", GraphQLString.type).build(),
+    new CompiledField.Builder("id", new CompiledNotNullType(GraphQLID.type)).alias("myId").build(),
+    new CompiledField.Builder("id", new CompiledNotNullType(GraphQLID.type)).build(),
+    new CompiledField.Builder("__typename", new CompiledNotNullType(GraphQLString.type)).build()
+  );
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/selections/GetASelections.java.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/selections/GetASelections.java.expected
new file mode 100644
index 00000000000..07e70d52149
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/selections/GetASelections.java.expected
@@ -0,0 +1,31 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.selections;
+
+import com.apollographql.apollo.api.CompiledField;
+import com.apollographql.apollo.api.CompiledFragment;
+import com.apollographql.apollo.api.CompiledNotNullType;
+import com.apollographql.apollo.api.CompiledSelection;
+import com.example.typepolicy.fragment.selections.AFragment1Selections;
+import com.example.typepolicy.type.A;
+import com.example.typepolicy.type.GraphQLID;
+import com.example.typepolicy.type.GraphQLString;
+import java.lang.SuppressWarnings;
+import java.util.Arrays;
+import java.util.List;
+
+@SuppressWarnings("unchecked")
+public class GetASelections {
+  private static List<CompiledSelection> __a = Arrays.asList(
+    new CompiledField.Builder("__typename", new CompiledNotNullType(GraphQLString.type)).build(),
+    new CompiledFragment.Builder("A", Arrays.asList("A")).selections(AFragment1Selections.__root).build(),
+    new CompiledField.Builder("id", new CompiledNotNullType(GraphQLID.type)).build()
+  );
+
+  public static List<CompiledSelection> __root = Arrays.asList(
+    new CompiledField.Builder("a", A.type).selections(__a).build()
+  );
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/type/A.java.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/type/A.java.expected
new file mode 100644
index 00000000000..795b14d4e03
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/type/A.java.expected
@@ -0,0 +1,13 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.type;
+
+import com.apollographql.apollo.api.ObjectType;
+import java.util.Arrays;
+
+public class A {
+  public static ObjectType type = (new ObjectType.Builder("A")).keyFields(Arrays.asList("id")).build();
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/type/GraphQLID.java.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/type/GraphQLID.java.expected
new file mode 100644
index 00000000000..f9bf235cf14
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/type/GraphQLID.java.expected
@@ -0,0 +1,15 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.type;
+
+import com.apollographql.apollo.api.CustomScalarType;
+
+/**
+ * The `ID` scalar type represents a unique identifier, often used to refetch an object or as key for a cache. The ID type appears in a JSON response as a String; however, it is not intended to be human-readable. When expected as an input type, any string (such as `"4"`) or integer (such as `4`) input value will be accepted as an ID.
+ */
+public class GraphQLID {
+  public static CustomScalarType type = new CustomScalarType("ID", "java.lang.String");
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/type/GraphQLString.java.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/type/GraphQLString.java.expected
new file mode 100644
index 00000000000..ef062fda116
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/type/GraphQLString.java.expected
@@ -0,0 +1,15 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.type;
+
+import com.apollographql.apollo.api.CustomScalarType;
+
+/**
+ * The `String` scalar type represents textual data, represented as UTF-8 character sequences. The String type is most often used by GraphQL to represent free-form human-readable text.
+ */
+public class GraphQLString {
+  public static CustomScalarType type = new CustomScalarType("String", "java.lang.String");
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/type/Query.java.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/type/Query.java.expected
new file mode 100644
index 00000000000..f3df2149f42
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/typepolicy/type/Query.java.expected
@@ -0,0 +1,12 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.type;
+
+import com.apollographql.apollo.api.ObjectType;
+
+public class Query {
+  public static ObjectType type = (new ObjectType.Builder("Query")).build();
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/used-coordinates.json.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/used-coordinates.json.expected
new file mode 100644
index 00000000000..17fd609a898
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/java/operationBased/used-coordinates.json.expected
@@ -0,0 +1,12 @@
+{
+    "typeToFieldsToArguments": {
+        "A": {
+        },
+        "String": {
+        },
+        "ID": {
+        },
+        "Query": {
+        }
+    }
+}
\ No newline at end of file
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/GetA.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/GetA.kt.expected
new file mode 100644
index 00000000000..d342fb209cd
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/GetA.kt.expected
@@ -0,0 +1,108 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy
+
+import com.apollographql.apollo.annotations.ApolloAdaptableWith
+import com.apollographql.apollo.api.Adapter
+import com.apollographql.apollo.api.CompiledField
+import com.apollographql.apollo.api.CustomScalarAdapters
+import com.apollographql.apollo.api.ExecutableDefinition
+import com.apollographql.apollo.api.Query
+import com.apollographql.apollo.api.json.JsonWriter
+import com.apollographql.apollo.api.obj
+import com.example.typepolicy.adapter.GetA_ResponseAdapter
+import com.example.typepolicy.fragment.AFragment1
+import com.example.typepolicy.selections.GetASelections
+import kotlin.Any
+import kotlin.Boolean
+import kotlin.Int
+import kotlin.String
+import com.example.typepolicy.type.Query as CompiledQuery
+
+public class GetA() : Query<GetA.Data> {
+  override fun equals(other: Any?): Boolean = other != null && other::class == this::class
+
+  override fun hashCode(): Int = this::class.hashCode()
+
+  override fun id(): String = OPERATION_ID
+
+  override fun document(): String = OPERATION_DOCUMENT
+
+  override fun name(): String = OPERATION_NAME
+
+  override fun serializeVariables(
+    writer: JsonWriter,
+    customScalarAdapters: CustomScalarAdapters,
+    withDefaultValues: Boolean,
+  ) {
+    // This operation doesn't have any variable
+  }
+
+  override fun adapter(): Adapter<Data> = ADAPTER
+
+  override fun rootField(): CompiledField = ROOT_FIELD
+
+  @ApolloAdaptableWith(GetA_ResponseAdapter.Data::class)
+  public data class Data(
+    public val a: A?,
+  ) : Query.Data {
+    public data class A(
+      public val __typename: String,
+      public val id: String,
+      /**
+       * Synthetic field for 'AFragment1'
+       */
+      public val aFragment1: AFragment1,
+    )
+  }
+
+  public companion object : ExecutableDefinition<Data> {
+    override val ADAPTER: Adapter<Data> = GetA_ResponseAdapter.Data.obj()
+
+    override val ROOT_FIELD: CompiledField = CompiledField.Builder(
+          name = "data",
+          type = CompiledQuery.type
+        )
+        .selections(selections = GetASelections.__root)
+        .build()
+
+    public const val OPERATION_ID: String =
+        "64f5865843b43e7efa316fea6e9f6b175f0bc5d262d317306109dd68613547e4"
+
+    /**
+     * The minimized GraphQL document being sent to the server to save a few bytes.
+     * The un-minimized version is:
+     *
+     * ```
+     * query GetA {
+     *   a {
+     *     __typename
+     *     ...AFragment1
+     *     id
+     *   }
+     * }
+     *
+     * fragment AFragment2 on A {
+     *   bar
+     *   myId: id
+     *   id
+     *   __typename
+     * }
+     *
+     * fragment AFragment1 on A {
+     *   __typename
+     *   foo
+     *   ...AFragment2
+     *   id
+     * }
+     * ```
+     */
+    public val OPERATION_DOCUMENT: String
+      get() = "query GetA { a { __typename ...AFragment1 id } }  fragment AFragment2 on A { bar myId: id id __typename }  fragment AFragment1 on A { __typename foo ...AFragment2 id }"
+
+    public const val OPERATION_NAME: String = "GetA"
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/adapter/GetA_ResponseAdapter.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/adapter/GetA_ResponseAdapter.kt.expected
new file mode 100644
index 00000000000..94accd21eff
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/adapter/GetA_ResponseAdapter.kt.expected
@@ -0,0 +1,89 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.adapter
+
+import com.apollographql.apollo.api.Adapter
+import com.apollographql.apollo.api.CustomScalarAdapters
+import com.apollographql.apollo.api.StringAdapter
+import com.apollographql.apollo.api.json.JsonReader
+import com.apollographql.apollo.api.json.JsonWriter
+import com.apollographql.apollo.api.missingField
+import com.apollographql.apollo.api.nullable
+import com.apollographql.apollo.api.obj
+import com.example.typepolicy.GetA
+import com.example.typepolicy.fragment.AFragment1Impl_ResponseAdapter
+import kotlin.String
+import kotlin.collections.List
+
+public object GetA_ResponseAdapter {
+  public object Data : Adapter<GetA.Data> {
+    public val RESPONSE_NAMES: List<String> = listOf("a")
+
+    override fun fromJson(reader: JsonReader, customScalarAdapters: CustomScalarAdapters): GetA.Data {
+      var _a: GetA.Data.A? = null
+
+      while (true) {
+        when (reader.selectName(RESPONSE_NAMES)) {
+          0 -> _a = A.obj(true).nullable().fromJson(reader, customScalarAdapters)
+          else -> break
+        }
+      }
+
+      return GetA.Data(
+        a = _a
+      )
+    }
+
+    override fun toJson(
+      writer: JsonWriter,
+      customScalarAdapters: CustomScalarAdapters,
+      `value`: GetA.Data,
+    ) {
+      writer.name("a")
+      A.obj(true).nullable().toJson(writer, customScalarAdapters, value.a)
+    }
+
+    private object A : Adapter<GetA.Data.A> {
+      public val RESPONSE_NAMES: List<String> = listOf("__typename", "id")
+
+      override fun fromJson(reader: JsonReader, customScalarAdapters: CustomScalarAdapters): GetA.Data.A {
+        var __typename: String? = null
+        var _id: String? = null
+
+        while (true) {
+          when (reader.selectName(RESPONSE_NAMES)) {
+            0 -> __typename = StringAdapter.fromJson(reader, customScalarAdapters)
+            1 -> _id = StringAdapter.fromJson(reader, customScalarAdapters)
+            else -> break
+          }
+        }
+
+        reader.rewind()
+        val _aFragment1 = com.example.typepolicy.fragment.AFragment1Impl_ResponseAdapter.AFragment1.fromJson(reader, customScalarAdapters)
+
+        return GetA.Data.A(
+          __typename = __typename ?: missingField(reader, "__typename"),
+          id = _id ?: missingField(reader, "id"),
+          aFragment1 = _aFragment1
+        )
+      }
+
+      override fun toJson(
+        writer: JsonWriter,
+        customScalarAdapters: CustomScalarAdapters,
+        `value`: GetA.Data.A,
+      ) {
+        writer.name("__typename")
+        StringAdapter.toJson(writer, customScalarAdapters, value.__typename)
+
+        writer.name("id")
+        StringAdapter.toJson(writer, customScalarAdapters, value.id)
+
+        AFragment1Impl_ResponseAdapter.AFragment1.toJson(writer, customScalarAdapters, value.aFragment1)
+      }
+    }
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment1.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment1.kt.expected
new file mode 100644
index 00000000000..17b5f21fa62
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment1.kt.expected
@@ -0,0 +1,19 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment
+
+import com.example.typepolicy.type.A
+import kotlin.String
+
+public data class AFragment1(
+  public val __typename: String,
+  public val foo: String?,
+  public val id: String,
+  /**
+   * Synthetic field for 'AFragment2'
+   */
+  public val aFragment2: AFragment2,
+) : A.Data
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment1Impl.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment1Impl.kt.expected
new file mode 100644
index 00000000000..5be6b6d685f
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment1Impl.kt.expected
@@ -0,0 +1,48 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment
+
+import com.apollographql.apollo.api.Adapter
+import com.apollographql.apollo.api.CompiledField
+import com.apollographql.apollo.api.CustomScalarAdapters
+import com.apollographql.apollo.api.ExecutableDefinition
+import com.apollographql.apollo.api.Fragment
+import com.apollographql.apollo.api.json.JsonWriter
+import com.apollographql.apollo.api.obj
+import com.example.typepolicy.fragment.selections.AFragment1Selections
+import com.example.typepolicy.type.A
+import kotlin.Any
+import kotlin.Boolean
+import kotlin.Int
+
+public class AFragment1Impl() : Fragment<AFragment1> {
+  override fun equals(other: Any?): Boolean = other != null && other::class == this::class
+
+  override fun hashCode(): Int = this::class.hashCode()
+
+  override fun serializeVariables(
+    writer: JsonWriter,
+    customScalarAdapters: CustomScalarAdapters,
+    withDefaultValues: Boolean,
+  ) {
+    // This fragment doesn't have any variable
+  }
+
+  override fun adapter(): Adapter<AFragment1> = ADAPTER
+
+  override fun rootField(): CompiledField = ROOT_FIELD
+
+  public companion object : ExecutableDefinition<AFragment1> {
+    override val ADAPTER: Adapter<AFragment1> = AFragment1Impl_ResponseAdapter.AFragment1.obj(true)
+
+    override val ROOT_FIELD: CompiledField = CompiledField.Builder(
+          name = "data",
+          type = A.type
+        )
+        .selections(selections = AFragment1Selections.__root)
+        .build()
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment1Impl_ResponseAdapter.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment1Impl_ResponseAdapter.kt.expected
new file mode 100644
index 00000000000..06ad917e79f
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment1Impl_ResponseAdapter.kt.expected
@@ -0,0 +1,64 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment
+
+import com.apollographql.apollo.api.Adapter
+import com.apollographql.apollo.api.CustomScalarAdapters
+import com.apollographql.apollo.api.NullableStringAdapter
+import com.apollographql.apollo.api.StringAdapter
+import com.apollographql.apollo.api.json.JsonReader
+import com.apollographql.apollo.api.json.JsonWriter
+import com.apollographql.apollo.api.missingField
+import kotlin.String
+import kotlin.collections.List
+
+public object AFragment1Impl_ResponseAdapter {
+  public object AFragment1 : Adapter<com.example.typepolicy.fragment.AFragment1> {
+    public val RESPONSE_NAMES: List<String> = listOf("__typename", "foo", "id")
+
+    override fun fromJson(reader: JsonReader, customScalarAdapters: CustomScalarAdapters): com.example.typepolicy.fragment.AFragment1 {
+      var __typename: String? = null
+      var _foo: String? = null
+      var _id: String? = null
+
+      while (true) {
+        when (reader.selectName(RESPONSE_NAMES)) {
+          0 -> __typename = StringAdapter.fromJson(reader, customScalarAdapters)
+          1 -> _foo = NullableStringAdapter.fromJson(reader, customScalarAdapters)
+          2 -> _id = StringAdapter.fromJson(reader, customScalarAdapters)
+          else -> break
+        }
+      }
+
+      reader.rewind()
+      val _aFragment2 = com.example.typepolicy.fragment.AFragment2Impl_ResponseAdapter.AFragment2.fromJson(reader, customScalarAdapters)
+
+      return com.example.typepolicy.fragment.AFragment1(
+        __typename = __typename ?: missingField(reader, "__typename"),
+        foo = _foo,
+        id = _id ?: missingField(reader, "id"),
+        aFragment2 = _aFragment2
+      )
+    }
+
+    override fun toJson(
+      writer: JsonWriter,
+      customScalarAdapters: CustomScalarAdapters,
+      `value`: com.example.typepolicy.fragment.AFragment1,
+    ) {
+      writer.name("__typename")
+      StringAdapter.toJson(writer, customScalarAdapters, value.__typename)
+
+      writer.name("foo")
+      NullableStringAdapter.toJson(writer, customScalarAdapters, value.foo)
+
+      writer.name("id")
+      StringAdapter.toJson(writer, customScalarAdapters, value.id)
+
+      AFragment2Impl_ResponseAdapter.AFragment2.toJson(writer, customScalarAdapters, value.aFragment2)
+    }
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment2.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment2.kt.expected
new file mode 100644
index 00000000000..f44afef0064
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment2.kt.expected
@@ -0,0 +1,16 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment
+
+import com.example.typepolicy.type.A
+import kotlin.String
+
+public data class AFragment2(
+  public val bar: String?,
+  public val myId: String,
+  public val id: String,
+  public val __typename: String,
+) : A.Data
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment2Impl.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment2Impl.kt.expected
new file mode 100644
index 00000000000..b5d297f7d19
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment2Impl.kt.expected
@@ -0,0 +1,48 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment
+
+import com.apollographql.apollo.api.Adapter
+import com.apollographql.apollo.api.CompiledField
+import com.apollographql.apollo.api.CustomScalarAdapters
+import com.apollographql.apollo.api.ExecutableDefinition
+import com.apollographql.apollo.api.Fragment
+import com.apollographql.apollo.api.json.JsonWriter
+import com.apollographql.apollo.api.obj
+import com.example.typepolicy.fragment.selections.AFragment2Selections
+import com.example.typepolicy.type.A
+import kotlin.Any
+import kotlin.Boolean
+import kotlin.Int
+
+public class AFragment2Impl() : Fragment<AFragment2> {
+  override fun equals(other: Any?): Boolean = other != null && other::class == this::class
+
+  override fun hashCode(): Int = this::class.hashCode()
+
+  override fun serializeVariables(
+    writer: JsonWriter,
+    customScalarAdapters: CustomScalarAdapters,
+    withDefaultValues: Boolean,
+  ) {
+    // This fragment doesn't have any variable
+  }
+
+  override fun adapter(): Adapter<AFragment2> = ADAPTER
+
+  override fun rootField(): CompiledField = ROOT_FIELD
+
+  public companion object : ExecutableDefinition<AFragment2> {
+    override val ADAPTER: Adapter<AFragment2> = AFragment2Impl_ResponseAdapter.AFragment2.obj()
+
+    override val ROOT_FIELD: CompiledField = CompiledField.Builder(
+          name = "data",
+          type = A.type
+        )
+        .selections(selections = AFragment2Selections.__root)
+        .build()
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment2Impl_ResponseAdapter.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment2Impl_ResponseAdapter.kt.expected
new file mode 100644
index 00000000000..bd9f7218f50
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/AFragment2Impl_ResponseAdapter.kt.expected
@@ -0,0 +1,64 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment
+
+import com.apollographql.apollo.api.Adapter
+import com.apollographql.apollo.api.CustomScalarAdapters
+import com.apollographql.apollo.api.NullableStringAdapter
+import com.apollographql.apollo.api.StringAdapter
+import com.apollographql.apollo.api.json.JsonReader
+import com.apollographql.apollo.api.json.JsonWriter
+import com.apollographql.apollo.api.missingField
+import kotlin.String
+import kotlin.collections.List
+
+public object AFragment2Impl_ResponseAdapter {
+  public object AFragment2 : Adapter<com.example.typepolicy.fragment.AFragment2> {
+    public val RESPONSE_NAMES: List<String> = listOf("bar", "myId", "id", "__typename")
+
+    override fun fromJson(reader: JsonReader, customScalarAdapters: CustomScalarAdapters): com.example.typepolicy.fragment.AFragment2 {
+      var _bar: String? = null
+      var _myId: String? = null
+      var _id: String? = null
+      var __typename: String? = null
+
+      while (true) {
+        when (reader.selectName(RESPONSE_NAMES)) {
+          0 -> _bar = NullableStringAdapter.fromJson(reader, customScalarAdapters)
+          1 -> _myId = StringAdapter.fromJson(reader, customScalarAdapters)
+          2 -> _id = StringAdapter.fromJson(reader, customScalarAdapters)
+          3 -> __typename = StringAdapter.fromJson(reader, customScalarAdapters)
+          else -> break
+        }
+      }
+
+      return com.example.typepolicy.fragment.AFragment2(
+        bar = _bar,
+        myId = _myId ?: missingField(reader, "myId"),
+        id = _id ?: missingField(reader, "id"),
+        __typename = __typename ?: missingField(reader, "__typename")
+      )
+    }
+
+    override fun toJson(
+      writer: JsonWriter,
+      customScalarAdapters: CustomScalarAdapters,
+      `value`: com.example.typepolicy.fragment.AFragment2,
+    ) {
+      writer.name("bar")
+      NullableStringAdapter.toJson(writer, customScalarAdapters, value.bar)
+
+      writer.name("myId")
+      StringAdapter.toJson(writer, customScalarAdapters, value.myId)
+
+      writer.name("id")
+      StringAdapter.toJson(writer, customScalarAdapters, value.id)
+
+      writer.name("__typename")
+      StringAdapter.toJson(writer, customScalarAdapters, value.__typename)
+    }
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/selections/AFragment1Selections.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/selections/AFragment1Selections.kt.expected
new file mode 100644
index 00000000000..5720c84bb18
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/selections/AFragment1Selections.kt.expected
@@ -0,0 +1,36 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment.selections
+
+import com.apollographql.apollo.api.CompiledField
+import com.apollographql.apollo.api.CompiledFragment
+import com.apollographql.apollo.api.CompiledSelection
+import com.apollographql.apollo.api.notNull
+import com.example.typepolicy.type.GraphQLID
+import com.example.typepolicy.type.GraphQLString
+import kotlin.collections.List
+
+public object AFragment1Selections {
+  public val __root: List<CompiledSelection> = listOf(
+        CompiledField.Builder(
+          name = "__typename",
+          type = GraphQLString.type.notNull()
+        ).build(),
+        CompiledField.Builder(
+          name = "foo",
+          type = GraphQLString.type
+        ).build(),
+        CompiledFragment.Builder(
+          typeCondition = "A",
+          possibleTypes = listOf("A")
+        ).selections(AFragment2Selections.__root)
+        .build(),
+        CompiledField.Builder(
+          name = "id",
+          type = GraphQLID.type.notNull()
+        ).build()
+      )
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/selections/AFragment2Selections.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/selections/AFragment2Selections.kt.expected
new file mode 100644
index 00000000000..3fe297471ec
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/fragment/selections/AFragment2Selections.kt.expected
@@ -0,0 +1,35 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment.selections
+
+import com.apollographql.apollo.api.CompiledField
+import com.apollographql.apollo.api.CompiledSelection
+import com.apollographql.apollo.api.notNull
+import com.example.typepolicy.type.GraphQLID
+import com.example.typepolicy.type.GraphQLString
+import kotlin.collections.List
+
+public object AFragment2Selections {
+  public val __root: List<CompiledSelection> = listOf(
+        CompiledField.Builder(
+          name = "bar",
+          type = GraphQLString.type
+        ).build(),
+        CompiledField.Builder(
+          name = "id",
+          type = GraphQLID.type.notNull()
+        ).alias("myId")
+        .build(),
+        CompiledField.Builder(
+          name = "id",
+          type = GraphQLID.type.notNull()
+        ).build(),
+        CompiledField.Builder(
+          name = "__typename",
+          type = GraphQLString.type.notNull()
+        ).build()
+      )
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/selections/GetASelections.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/selections/GetASelections.kt.expected
new file mode 100644
index 00000000000..1aa19b48c8f
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/selections/GetASelections.kt.expected
@@ -0,0 +1,42 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.selections
+
+import com.apollographql.apollo.api.CompiledField
+import com.apollographql.apollo.api.CompiledFragment
+import com.apollographql.apollo.api.CompiledSelection
+import com.apollographql.apollo.api.notNull
+import com.example.typepolicy.fragment.selections.AFragment1Selections
+import com.example.typepolicy.type.A
+import com.example.typepolicy.type.GraphQLID
+import com.example.typepolicy.type.GraphQLString
+import kotlin.collections.List
+
+public object GetASelections {
+  private val __a: List<CompiledSelection> = listOf(
+        CompiledField.Builder(
+          name = "__typename",
+          type = GraphQLString.type.notNull()
+        ).build(),
+        CompiledFragment.Builder(
+          typeCondition = "A",
+          possibleTypes = listOf("A")
+        ).selections(AFragment1Selections.__root)
+        .build(),
+        CompiledField.Builder(
+          name = "id",
+          type = GraphQLID.type.notNull()
+        ).build()
+      )
+
+  public val __root: List<CompiledSelection> = listOf(
+        CompiledField.Builder(
+          name = "a",
+          type = A.type
+        ).selections(__a)
+        .build()
+      )
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/type/A.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/type/A.kt.expected
new file mode 100644
index 00000000000..2fe2e2fef92
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/type/A.kt.expected
@@ -0,0 +1,17 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.type
+
+import com.apollographql.apollo.api.Fragment
+import com.apollographql.apollo.api.ObjectType
+
+public class A {
+  public interface Data : Fragment.Data
+
+  public companion object {
+    public val type: ObjectType = ObjectType.Builder(name = "A").keyFields(listOf("id")).build()
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/type/GraphQLID.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/type/GraphQLID.kt.expected
new file mode 100644
index 00000000000..6ac7c0dd7de
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/type/GraphQLID.kt.expected
@@ -0,0 +1,20 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.type
+
+import com.apollographql.apollo.api.CustomScalarType
+
+/**
+ * The `ID` scalar type represents a unique identifier, often used to refetch an object or as key
+ * for a cache. The ID type appears in a JSON response as a String; however, it is not intended to be
+ * human-readable. When expected as an input type, any string (such as `"4"`) or integer (such as `4`)
+ * input value will be accepted as an ID.
+ */
+public class GraphQLID {
+  public companion object {
+    public val type: CustomScalarType = CustomScalarType("ID", "kotlin.String")
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/type/GraphQLString.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/type/GraphQLString.kt.expected
new file mode 100644
index 00000000000..d9054fc2c4d
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/type/GraphQLString.kt.expected
@@ -0,0 +1,18 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.type
+
+import com.apollographql.apollo.api.CustomScalarType
+
+/**
+ * The `String` scalar type represents textual data, represented as UTF-8 character sequences. The
+ * String type is most often used by GraphQL to represent free-form human-readable text.
+ */
+public class GraphQLString {
+  public companion object {
+    public val type: CustomScalarType = CustomScalarType("String", "kotlin.String")
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/type/Query.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/type/Query.kt.expected
new file mode 100644
index 00000000000..35506acd821
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/typepolicy/type/Query.kt.expected
@@ -0,0 +1,17 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.type
+
+import com.apollographql.apollo.api.Fragment
+import com.apollographql.apollo.api.ObjectType
+
+public class Query {
+  public interface Data : Fragment.Data
+
+  public companion object {
+    public val type: ObjectType = ObjectType.Builder(name = "Query").build()
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/used-coordinates.json.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/used-coordinates.json.expected
new file mode 100644
index 00000000000..17fd609a898
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/operationBased/used-coordinates.json.expected
@@ -0,0 +1,12 @@
+{
+    "typeToFieldsToArguments": {
+        "A": {
+        },
+        "String": {
+        },
+        "ID": {
+        },
+        "Query": {
+        }
+    }
+}
\ No newline at end of file
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/GetA.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/GetA.kt.expected
new file mode 100644
index 00000000000..25408c78769
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/GetA.kt.expected
@@ -0,0 +1,113 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy
+
+import com.apollographql.apollo.annotations.ApolloAdaptableWith
+import com.apollographql.apollo.api.Adapter
+import com.apollographql.apollo.api.CompiledField
+import com.apollographql.apollo.api.CustomScalarAdapters
+import com.apollographql.apollo.api.ExecutableDefinition
+import com.apollographql.apollo.api.Query
+import com.apollographql.apollo.api.json.JsonWriter
+import com.apollographql.apollo.api.obj
+import com.example.typepolicy.adapter.GetA_ResponseAdapter
+import com.example.typepolicy.fragment.AFragment1
+import com.example.typepolicy.selections.GetASelections
+import kotlin.Any
+import kotlin.Boolean
+import kotlin.Int
+import kotlin.String
+import kotlin.Suppress
+import com.example.typepolicy.type.Query as CompiledQuery
+
+public class GetA() : Query<GetA.Data> {
+  override fun equals(other: Any?): Boolean = other != null && other::class == this::class
+
+  override fun hashCode(): Int = this::class.hashCode()
+
+  override fun id(): String = OPERATION_ID
+
+  override fun document(): String = OPERATION_DOCUMENT
+
+  override fun name(): String = OPERATION_NAME
+
+  override fun serializeVariables(
+    writer: JsonWriter,
+    customScalarAdapters: CustomScalarAdapters,
+    withDefaultValues: Boolean,
+  ) {
+    // This operation doesn't have any variable
+  }
+
+  override fun adapter(): Adapter<Data> = ADAPTER
+
+  override fun rootField(): CompiledField = ROOT_FIELD
+
+  @ApolloAdaptableWith(GetA_ResponseAdapter.Data::class)
+  public data class Data(
+    public val a: A?,
+  ) : Query.Data {
+    public data class A(
+      override val __typename: String,
+      override val foo: String?,
+      override val bar: String?,
+      override val myId: String,
+      override val id: String,
+    ) : AFragment1 {
+      public companion object {
+        @Suppress("USELESS_CAST")
+        public fun A.aFragment1(): AFragment1? = this as? AFragment1
+      }
+    }
+  }
+
+  public companion object : ExecutableDefinition<Data> {
+    override val ADAPTER: Adapter<Data> = GetA_ResponseAdapter.Data.obj()
+
+    override val ROOT_FIELD: CompiledField = CompiledField.Builder(
+          name = "data",
+          type = CompiledQuery.type
+        )
+        .selections(selections = GetASelections.__root)
+        .build()
+
+    public const val OPERATION_ID: String =
+        "64f5865843b43e7efa316fea6e9f6b175f0bc5d262d317306109dd68613547e4"
+
+    /**
+     * The minimized GraphQL document being sent to the server to save a few bytes.
+     * The un-minimized version is:
+     *
+     * ```
+     * query GetA {
+     *   a {
+     *     __typename
+     *     ...AFragment1
+     *     id
+     *   }
+     * }
+     *
+     * fragment AFragment2 on A {
+     *   bar
+     *   myId: id
+     *   id
+     *   __typename
+     * }
+     *
+     * fragment AFragment1 on A {
+     *   __typename
+     *   foo
+     *   ...AFragment2
+     *   id
+     * }
+     * ```
+     */
+    public val OPERATION_DOCUMENT: String
+      get() = "query GetA { a { __typename ...AFragment1 id } }  fragment AFragment2 on A { bar myId: id id __typename }  fragment AFragment1 on A { __typename foo ...AFragment2 id }"
+
+    public const val OPERATION_NAME: String = "GetA"
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/adapter/GetA_ResponseAdapter.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/adapter/GetA_ResponseAdapter.kt.expected
new file mode 100644
index 00000000000..ff4a01702f1
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/adapter/GetA_ResponseAdapter.kt.expected
@@ -0,0 +1,101 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.adapter
+
+import com.apollographql.apollo.api.Adapter
+import com.apollographql.apollo.api.CustomScalarAdapters
+import com.apollographql.apollo.api.NullableStringAdapter
+import com.apollographql.apollo.api.StringAdapter
+import com.apollographql.apollo.api.json.JsonReader
+import com.apollographql.apollo.api.json.JsonWriter
+import com.apollographql.apollo.api.missingField
+import com.apollographql.apollo.api.nullable
+import com.apollographql.apollo.api.obj
+import com.example.typepolicy.GetA
+import kotlin.String
+import kotlin.collections.List
+
+public object GetA_ResponseAdapter {
+  public object Data : Adapter<GetA.Data> {
+    public val RESPONSE_NAMES: List<String> = listOf("a")
+
+    override fun fromJson(reader: JsonReader, customScalarAdapters: CustomScalarAdapters): GetA.Data {
+      var _a: GetA.Data.A? = null
+
+      while (true) {
+        when (reader.selectName(RESPONSE_NAMES)) {
+          0 -> _a = A.obj().nullable().fromJson(reader, customScalarAdapters)
+          else -> break
+        }
+      }
+
+      return GetA.Data(
+        a = _a
+      )
+    }
+
+    override fun toJson(
+      writer: JsonWriter,
+      customScalarAdapters: CustomScalarAdapters,
+      `value`: GetA.Data,
+    ) {
+      writer.name("a")
+      A.obj().nullable().toJson(writer, customScalarAdapters, value.a)
+    }
+
+    private object A : Adapter<GetA.Data.A> {
+      public val RESPONSE_NAMES: List<String> = listOf("__typename", "foo", "bar", "myId", "id")
+
+      override fun fromJson(reader: JsonReader, customScalarAdapters: CustomScalarAdapters): GetA.Data.A {
+        var __typename: String? = null
+        var _foo: String? = null
+        var _bar: String? = null
+        var _myId: String? = null
+        var _id: String? = null
+
+        while (true) {
+          when (reader.selectName(RESPONSE_NAMES)) {
+            0 -> __typename = StringAdapter.fromJson(reader, customScalarAdapters)
+            1 -> _foo = NullableStringAdapter.fromJson(reader, customScalarAdapters)
+            2 -> _bar = NullableStringAdapter.fromJson(reader, customScalarAdapters)
+            3 -> _myId = StringAdapter.fromJson(reader, customScalarAdapters)
+            4 -> _id = StringAdapter.fromJson(reader, customScalarAdapters)
+            else -> break
+          }
+        }
+
+        return GetA.Data.A(
+          __typename = __typename ?: missingField(reader, "__typename"),
+          foo = _foo,
+          bar = _bar,
+          myId = _myId ?: missingField(reader, "myId"),
+          id = _id ?: missingField(reader, "id")
+        )
+      }
+
+      override fun toJson(
+        writer: JsonWriter,
+        customScalarAdapters: CustomScalarAdapters,
+        `value`: GetA.Data.A,
+      ) {
+        writer.name("__typename")
+        StringAdapter.toJson(writer, customScalarAdapters, value.__typename)
+
+        writer.name("foo")
+        NullableStringAdapter.toJson(writer, customScalarAdapters, value.foo)
+
+        writer.name("bar")
+        NullableStringAdapter.toJson(writer, customScalarAdapters, value.bar)
+
+        writer.name("myId")
+        StringAdapter.toJson(writer, customScalarAdapters, value.myId)
+
+        writer.name("id")
+        StringAdapter.toJson(writer, customScalarAdapters, value.id)
+      }
+    }
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment1.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment1.kt.expected
new file mode 100644
index 00000000000..a6cc6e1034a
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment1.kt.expected
@@ -0,0 +1,26 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment
+
+import kotlin.String
+import kotlin.Suppress
+
+public interface AFragment1 : AFragment2 {
+  override val __typename: String
+
+  public val foo: String?
+
+  override val bar: String?
+
+  override val myId: String
+
+  override val id: String
+
+  public companion object {
+    @Suppress("USELESS_CAST")
+    public fun AFragment1.aFragment2(): AFragment2? = this as? AFragment2
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment1Impl.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment1Impl.kt.expected
new file mode 100644
index 00000000000..fa1c6f0e085
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment1Impl.kt.expected
@@ -0,0 +1,65 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment
+
+import com.apollographql.apollo.api.Adapter
+import com.apollographql.apollo.api.CompiledField
+import com.apollographql.apollo.api.CustomScalarAdapters
+import com.apollographql.apollo.api.ExecutableDefinition
+import com.apollographql.apollo.api.Fragment
+import com.apollographql.apollo.api.json.JsonWriter
+import com.apollographql.apollo.api.obj
+import com.example.typepolicy.fragment.selections.AFragment1Selections
+import com.example.typepolicy.type.A
+import kotlin.Any
+import kotlin.Boolean
+import kotlin.Int
+import kotlin.String
+import kotlin.Suppress
+
+public class AFragment1Impl() : Fragment<AFragment1Impl.Data> {
+  override fun equals(other: Any?): Boolean = other != null && other::class == this::class
+
+  override fun hashCode(): Int = this::class.hashCode()
+
+  override fun serializeVariables(
+    writer: JsonWriter,
+    customScalarAdapters: CustomScalarAdapters,
+    withDefaultValues: Boolean,
+  ) {
+    // This fragment doesn't have any variable
+  }
+
+  override fun adapter(): Adapter<Data> = ADAPTER
+
+  override fun rootField(): CompiledField = ROOT_FIELD
+
+  public data class Data(
+    override val __typename: String,
+    override val foo: String?,
+    override val bar: String?,
+    override val myId: String,
+    override val id: String,
+  ) : AFragment2,
+      AFragment1,
+      A.Data {
+    public companion object {
+      @Suppress("USELESS_CAST")
+      public fun Data.aFragment2(): AFragment2? = this as? AFragment2
+    }
+  }
+
+  public companion object : ExecutableDefinition<Data> {
+    override val ADAPTER: Adapter<Data> = AFragment1Impl_ResponseAdapter.Data.obj()
+
+    override val ROOT_FIELD: CompiledField = CompiledField.Builder(
+          name = "data",
+          type = A.type
+        )
+        .selections(selections = AFragment1Selections.__root)
+        .build()
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment1Impl_ResponseAdapter.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment1Impl_ResponseAdapter.kt.expected
new file mode 100644
index 00000000000..f1f58fabe16
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment1Impl_ResponseAdapter.kt.expected
@@ -0,0 +1,70 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment
+
+import com.apollographql.apollo.api.Adapter
+import com.apollographql.apollo.api.CustomScalarAdapters
+import com.apollographql.apollo.api.NullableStringAdapter
+import com.apollographql.apollo.api.StringAdapter
+import com.apollographql.apollo.api.json.JsonReader
+import com.apollographql.apollo.api.json.JsonWriter
+import com.apollographql.apollo.api.missingField
+import kotlin.String
+import kotlin.collections.List
+
+public object AFragment1Impl_ResponseAdapter {
+  public object Data : Adapter<AFragment1Impl.Data> {
+    public val RESPONSE_NAMES: List<String> = listOf("__typename", "foo", "bar", "myId", "id")
+
+    override fun fromJson(reader: JsonReader, customScalarAdapters: CustomScalarAdapters): AFragment1Impl.Data {
+      var __typename: String? = null
+      var _foo: String? = null
+      var _bar: String? = null
+      var _myId: String? = null
+      var _id: String? = null
+
+      while (true) {
+        when (reader.selectName(RESPONSE_NAMES)) {
+          0 -> __typename = StringAdapter.fromJson(reader, customScalarAdapters)
+          1 -> _foo = NullableStringAdapter.fromJson(reader, customScalarAdapters)
+          2 -> _bar = NullableStringAdapter.fromJson(reader, customScalarAdapters)
+          3 -> _myId = StringAdapter.fromJson(reader, customScalarAdapters)
+          4 -> _id = StringAdapter.fromJson(reader, customScalarAdapters)
+          else -> break
+        }
+      }
+
+      return AFragment1Impl.Data(
+        __typename = __typename ?: missingField(reader, "__typename"),
+        foo = _foo,
+        bar = _bar,
+        myId = _myId ?: missingField(reader, "myId"),
+        id = _id ?: missingField(reader, "id")
+      )
+    }
+
+    override fun toJson(
+      writer: JsonWriter,
+      customScalarAdapters: CustomScalarAdapters,
+      `value`: AFragment1Impl.Data,
+    ) {
+      writer.name("__typename")
+      StringAdapter.toJson(writer, customScalarAdapters, value.__typename)
+
+      writer.name("foo")
+      NullableStringAdapter.toJson(writer, customScalarAdapters, value.foo)
+
+      writer.name("bar")
+      NullableStringAdapter.toJson(writer, customScalarAdapters, value.bar)
+
+      writer.name("myId")
+      StringAdapter.toJson(writer, customScalarAdapters, value.myId)
+
+      writer.name("id")
+      StringAdapter.toJson(writer, customScalarAdapters, value.id)
+    }
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment2.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment2.kt.expected
new file mode 100644
index 00000000000..ef767fd398c
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment2.kt.expected
@@ -0,0 +1,18 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment
+
+import kotlin.String
+
+public interface AFragment2 {
+  public val bar: String?
+
+  public val myId: String
+
+  public val id: String
+
+  public val __typename: String
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment2Impl.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment2Impl.kt.expected
new file mode 100644
index 00000000000..f0dc961969c
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment2Impl.kt.expected
@@ -0,0 +1,57 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment
+
+import com.apollographql.apollo.api.Adapter
+import com.apollographql.apollo.api.CompiledField
+import com.apollographql.apollo.api.CustomScalarAdapters
+import com.apollographql.apollo.api.ExecutableDefinition
+import com.apollographql.apollo.api.Fragment
+import com.apollographql.apollo.api.json.JsonWriter
+import com.apollographql.apollo.api.obj
+import com.example.typepolicy.fragment.selections.AFragment2Selections
+import com.example.typepolicy.type.A
+import kotlin.Any
+import kotlin.Boolean
+import kotlin.Int
+import kotlin.String
+
+public class AFragment2Impl() : Fragment<AFragment2Impl.Data> {
+  override fun equals(other: Any?): Boolean = other != null && other::class == this::class
+
+  override fun hashCode(): Int = this::class.hashCode()
+
+  override fun serializeVariables(
+    writer: JsonWriter,
+    customScalarAdapters: CustomScalarAdapters,
+    withDefaultValues: Boolean,
+  ) {
+    // This fragment doesn't have any variable
+  }
+
+  override fun adapter(): Adapter<Data> = ADAPTER
+
+  override fun rootField(): CompiledField = ROOT_FIELD
+
+  public data class Data(
+    override val bar: String?,
+    override val myId: String,
+    override val id: String,
+    override val __typename: String,
+  ) : AFragment2,
+      A.Data
+
+  public companion object : ExecutableDefinition<Data> {
+    override val ADAPTER: Adapter<Data> = AFragment2Impl_ResponseAdapter.Data.obj()
+
+    override val ROOT_FIELD: CompiledField = CompiledField.Builder(
+          name = "data",
+          type = A.type
+        )
+        .selections(selections = AFragment2Selections.__root)
+        .build()
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment2Impl_ResponseAdapter.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment2Impl_ResponseAdapter.kt.expected
new file mode 100644
index 00000000000..96973abd21c
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/AFragment2Impl_ResponseAdapter.kt.expected
@@ -0,0 +1,64 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment
+
+import com.apollographql.apollo.api.Adapter
+import com.apollographql.apollo.api.CustomScalarAdapters
+import com.apollographql.apollo.api.NullableStringAdapter
+import com.apollographql.apollo.api.StringAdapter
+import com.apollographql.apollo.api.json.JsonReader
+import com.apollographql.apollo.api.json.JsonWriter
+import com.apollographql.apollo.api.missingField
+import kotlin.String
+import kotlin.collections.List
+
+public object AFragment2Impl_ResponseAdapter {
+  public object Data : Adapter<AFragment2Impl.Data> {
+    public val RESPONSE_NAMES: List<String> = listOf("bar", "myId", "id", "__typename")
+
+    override fun fromJson(reader: JsonReader, customScalarAdapters: CustomScalarAdapters): AFragment2Impl.Data {
+      var _bar: String? = null
+      var _myId: String? = null
+      var _id: String? = null
+      var __typename: String? = null
+
+      while (true) {
+        when (reader.selectName(RESPONSE_NAMES)) {
+          0 -> _bar = NullableStringAdapter.fromJson(reader, customScalarAdapters)
+          1 -> _myId = StringAdapter.fromJson(reader, customScalarAdapters)
+          2 -> _id = StringAdapter.fromJson(reader, customScalarAdapters)
+          3 -> __typename = StringAdapter.fromJson(reader, customScalarAdapters)
+          else -> break
+        }
+      }
+
+      return AFragment2Impl.Data(
+        bar = _bar,
+        myId = _myId ?: missingField(reader, "myId"),
+        id = _id ?: missingField(reader, "id"),
+        __typename = __typename ?: missingField(reader, "__typename")
+      )
+    }
+
+    override fun toJson(
+      writer: JsonWriter,
+      customScalarAdapters: CustomScalarAdapters,
+      `value`: AFragment2Impl.Data,
+    ) {
+      writer.name("bar")
+      NullableStringAdapter.toJson(writer, customScalarAdapters, value.bar)
+
+      writer.name("myId")
+      StringAdapter.toJson(writer, customScalarAdapters, value.myId)
+
+      writer.name("id")
+      StringAdapter.toJson(writer, customScalarAdapters, value.id)
+
+      writer.name("__typename")
+      StringAdapter.toJson(writer, customScalarAdapters, value.__typename)
+    }
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/selections/AFragment1Selections.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/selections/AFragment1Selections.kt.expected
new file mode 100644
index 00000000000..5720c84bb18
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/selections/AFragment1Selections.kt.expected
@@ -0,0 +1,36 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment.selections
+
+import com.apollographql.apollo.api.CompiledField
+import com.apollographql.apollo.api.CompiledFragment
+import com.apollographql.apollo.api.CompiledSelection
+import com.apollographql.apollo.api.notNull
+import com.example.typepolicy.type.GraphQLID
+import com.example.typepolicy.type.GraphQLString
+import kotlin.collections.List
+
+public object AFragment1Selections {
+  public val __root: List<CompiledSelection> = listOf(
+        CompiledField.Builder(
+          name = "__typename",
+          type = GraphQLString.type.notNull()
+        ).build(),
+        CompiledField.Builder(
+          name = "foo",
+          type = GraphQLString.type
+        ).build(),
+        CompiledFragment.Builder(
+          typeCondition = "A",
+          possibleTypes = listOf("A")
+        ).selections(AFragment2Selections.__root)
+        .build(),
+        CompiledField.Builder(
+          name = "id",
+          type = GraphQLID.type.notNull()
+        ).build()
+      )
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/selections/AFragment2Selections.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/selections/AFragment2Selections.kt.expected
new file mode 100644
index 00000000000..3fe297471ec
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/fragment/selections/AFragment2Selections.kt.expected
@@ -0,0 +1,35 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.fragment.selections
+
+import com.apollographql.apollo.api.CompiledField
+import com.apollographql.apollo.api.CompiledSelection
+import com.apollographql.apollo.api.notNull
+import com.example.typepolicy.type.GraphQLID
+import com.example.typepolicy.type.GraphQLString
+import kotlin.collections.List
+
+public object AFragment2Selections {
+  public val __root: List<CompiledSelection> = listOf(
+        CompiledField.Builder(
+          name = "bar",
+          type = GraphQLString.type
+        ).build(),
+        CompiledField.Builder(
+          name = "id",
+          type = GraphQLID.type.notNull()
+        ).alias("myId")
+        .build(),
+        CompiledField.Builder(
+          name = "id",
+          type = GraphQLID.type.notNull()
+        ).build(),
+        CompiledField.Builder(
+          name = "__typename",
+          type = GraphQLString.type.notNull()
+        ).build()
+      )
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/selections/GetASelections.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/selections/GetASelections.kt.expected
new file mode 100644
index 00000000000..1aa19b48c8f
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/selections/GetASelections.kt.expected
@@ -0,0 +1,42 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.selections
+
+import com.apollographql.apollo.api.CompiledField
+import com.apollographql.apollo.api.CompiledFragment
+import com.apollographql.apollo.api.CompiledSelection
+import com.apollographql.apollo.api.notNull
+import com.example.typepolicy.fragment.selections.AFragment1Selections
+import com.example.typepolicy.type.A
+import com.example.typepolicy.type.GraphQLID
+import com.example.typepolicy.type.GraphQLString
+import kotlin.collections.List
+
+public object GetASelections {
+  private val __a: List<CompiledSelection> = listOf(
+        CompiledField.Builder(
+          name = "__typename",
+          type = GraphQLString.type.notNull()
+        ).build(),
+        CompiledFragment.Builder(
+          typeCondition = "A",
+          possibleTypes = listOf("A")
+        ).selections(AFragment1Selections.__root)
+        .build(),
+        CompiledField.Builder(
+          name = "id",
+          type = GraphQLID.type.notNull()
+        ).build()
+      )
+
+  public val __root: List<CompiledSelection> = listOf(
+        CompiledField.Builder(
+          name = "a",
+          type = A.type
+        ).selections(__a)
+        .build()
+      )
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/type/A.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/type/A.kt.expected
new file mode 100644
index 00000000000..2fe2e2fef92
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/type/A.kt.expected
@@ -0,0 +1,17 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.type
+
+import com.apollographql.apollo.api.Fragment
+import com.apollographql.apollo.api.ObjectType
+
+public class A {
+  public interface Data : Fragment.Data
+
+  public companion object {
+    public val type: ObjectType = ObjectType.Builder(name = "A").keyFields(listOf("id")).build()
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/type/GraphQLID.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/type/GraphQLID.kt.expected
new file mode 100644
index 00000000000..6ac7c0dd7de
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/type/GraphQLID.kt.expected
@@ -0,0 +1,20 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.type
+
+import com.apollographql.apollo.api.CustomScalarType
+
+/**
+ * The `ID` scalar type represents a unique identifier, often used to refetch an object or as key
+ * for a cache. The ID type appears in a JSON response as a String; however, it is not intended to be
+ * human-readable. When expected as an input type, any string (such as `"4"`) or integer (such as `4`)
+ * input value will be accepted as an ID.
+ */
+public class GraphQLID {
+  public companion object {
+    public val type: CustomScalarType = CustomScalarType("ID", "kotlin.String")
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/type/GraphQLString.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/type/GraphQLString.kt.expected
new file mode 100644
index 00000000000..d9054fc2c4d
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/type/GraphQLString.kt.expected
@@ -0,0 +1,18 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.type
+
+import com.apollographql.apollo.api.CustomScalarType
+
+/**
+ * The `String` scalar type represents textual data, represented as UTF-8 character sequences. The
+ * String type is most often used by GraphQL to represent free-form human-readable text.
+ */
+public class GraphQLString {
+  public companion object {
+    public val type: CustomScalarType = CustomScalarType("String", "kotlin.String")
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/type/Query.kt.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/type/Query.kt.expected
new file mode 100644
index 00000000000..35506acd821
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/typepolicy/type/Query.kt.expected
@@ -0,0 +1,17 @@
+//
+// AUTO-GENERATED FILE. DO NOT MODIFY.
+//
+// This class was automatically generated by Apollo GraphQL version '$VERSION'.
+//
+package com.example.typepolicy.type
+
+import com.apollographql.apollo.api.Fragment
+import com.apollographql.apollo.api.ObjectType
+
+public class Query {
+  public interface Data : Fragment.Data
+
+  public companion object {
+    public val type: ObjectType = ObjectType.Builder(name = "Query").build()
+  }
+}
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/used-coordinates.json.expected b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/used-coordinates.json.expected
new file mode 100644
index 00000000000..17fd609a898
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/kotlin/responseBased/used-coordinates.json.expected
@@ -0,0 +1,12 @@
+{
+    "typeToFieldsToArguments": {
+        "A": {
+        },
+        "String": {
+        },
+        "ID": {
+        },
+        "Query": {
+        }
+    }
+}
\ No newline at end of file
diff --git a/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/schema.graphqls b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/schema.graphqls
new file mode 100644
index 00000000000..f0f3ca6f880
--- /dev/null
+++ b/libraries/apollo-compiler/src/test/graphql/com/example/typepolicy/schema.graphqls
@@ -0,0 +1,15 @@
+extend schema
+@link(
+  url: "https://specs.apollo.dev/kotlin_labs/v0.3",
+  import: ["@typePolicy"]
+)
+
+type A @typePolicy(keyFields: "id") {
+  id: ID!
+  foo: String
+  bar: String
+}
+
+type Query {
+  a: A
+}
\ No newline at end of file