Implement typed module contracts and conformance bindings

src/capability-model/validation.ts

@@ -1,6 +1,7 @@
 import { isStorableType } from "./generics.js";
 import { validateInitialization } from "./initialization.js";
 import { validatePresentations } from "./presentations.js";
+import { validateModules } from "./modules.js";
 import { validateWorkspaceControllers } from "./controllers.js";
 import { validateExecutionContracts } from "./execution.js";
 import { resolveForwardedBinding, type ConcreteBinding } from "./forwarding.js";
@@ -48,6 +49,7 @@ import { isDeepStrictEqual } from "node:util";
 export type CapabilityValidationIssueCode =
   | "invalid-controller"
   | "invalid-presentation"
+  | "invalid-module-contract"
   | "invalid-initialization"
   | "invalid-execution-contract"
   | "invalid-query-contract"
@@ -543,7 +545,7 @@ const collectIdentityIndexes = (
           memberPath,
           "Keyed relationships require many cardinality and string, boolean or int64 keys",
         );
-      if (member.kind !== "operation" && member.queryRead) {
+      if (member.kind !== "operation" && member.kind !== "module" && member.queryRead) {
         const contract = member.queryRead.execution;
         const getter = member.kind === "value" ? "get" : "resolve";
         if (contract !== "native" && contract !== "rpc-permitted" && contract !== "portable")
@@ -841,6 +843,8 @@ const validateInterfaces = (
         validateValueType(issues, member.valueType, `${memberPath}.valueType`, indexes);
       } else if (member.kind === "relationship") {
         validateConstraint(issues, member.target, `${memberPath}.target`, indexes);
+      } else if (member.kind === "module") {
+        if (member.subject) validateConstraint(issues, member.subject, `${memberPath}.subject`, indexes);
       } else {
         validateValueType(issues, member.inputType, `${memberPath}.inputType`, indexes);
         validateValueType(issues, member.outputType, `${memberPath}.outputType`, indexes);
@@ -1671,6 +1675,7 @@ const validateConformances = (
         );
       if (
         member.kind !== "operation" &&
+        member.kind !== "module" &&
         member.queryRead &&
         operation.displayName === (member.kind === "value" ? "get" : "resolve")
       ) {
@@ -2224,6 +2229,7 @@ export const validateWorkspaceRevision = (workspace: WorkspaceRevision): Capabil
     ...validateExecutionContracts(workspace),
     ...validateInitialization(workspace),
     ...validatePresentations(workspace),
+    ...validateModules(workspace),
     ...validateWorkspaceControllers(workspace),
   );
   return issues;
@@ -2504,6 +2510,14 @@ export const computeCapabilityClosure = (
     for (const interfaceRevisionId of plan.interfaces.get(root.interfaceRevisionId)?.requiredInterfaces ?? []) {
       queued.push({ atomId: root.atomId, interfaceRevisionId });
     }
+    for (const module of conformance.source.moduleBindings ?? []) {
+      packages.add(module.packageRevisionId);
+      const member = plan.interfaces
+        .get(root.interfaceRevisionId)
+        ?.members.find((member) => member.id === module.memberId);
+      if (member?.kind === "module" && member.subject?.kind === "interface")
+        queued.push({ atomId: root.atomId, interfaceRevisionId: member.subject.interfaceRevisionId });
+    }
     for (const binding of conformance.operationBindings.values()) {
       if (binding.kind === "state") {
         attachments.add(binding.slotId);