View config as protos, via a new class

core/BUILD

@@ -20,6 +20,7 @@ ts_library(
     srcs = [
         "actions/assertion.ts",
         "actions/declaration.ts",
+        "actions/view.ts",
         "actions/index.ts",
         "actions/operation.ts",
         "actions/notebook.ts",

core/actions/declaration.ts

@@ -1,14 +1,8 @@
 import { verifyObjectMatchesProto, VerifyProtoErrorBehaviour } from "df/common/protos";
 import { ActionBuilder } from "df/core/actions";
 import { ColumnDescriptors } from "df/core/column_descriptors";
-import {
-  IColumnsDescriptor,
-  IDocumentableConfig,
-  INamedConfig,
-  ITargetableConfig
-} from "df/core/common";
 import { Session } from "df/core/session";
-import { actionConfigToCompiledGraphTarget, checkExcessProperties } from "df/core/utils";
+import { actionConfigToCompiledGraphTarget } from "df/core/utils";
 import { dataform } from "df/protos/ts";
 
 interface ILegacyDeclarationConfig extends dataform.ActionConfig.DeclarationConfig {

core/actions/index.ts

@@ -3,10 +3,11 @@ import { Declaration } from "df/core/actions/declaration";
 import { Notebook } from "df/core/actions/notebook";
 import { Operation } from "df/core/actions/operation";
 import { Table } from "df/core/actions/table";
+import { View } from "df/core/actions/view";
 import { Session } from "df/core/session";
 import { dataform } from "df/protos/ts";
 
-export type Action = Table | Operation | Assertion | Declaration | Notebook;
+export type Action = Table | View | Operation | Assertion | Declaration | Notebook;
 
 // TODO(ekrekr): In v4, make all method on inheritors of this private, forcing users to use
 // constructors in order to populate actions.