add mock artifacts plugins

v-next/hardhat-errors/src/descriptors.ts

@@ -206,6 +206,15 @@ Please add the property "type" with the value "module" in your package.json to e
       websiteTitle: "Invariant violation",
       websiteDescription: `An internal invariant was violated. This is probably caused by a programming error in Hardhat or in one of the used plugins.
 
+Please [report it](https://github.com/nomiclabs/hardhat/issues/new) to help us improve Hardhat.`,
+      shouldBeReported: true,
+    },
+    NOT_IMPLEMENTED_ERROR: {
+      number: 101,
+      messageTemplate: "Not implemented: {message}",
+      websiteTitle: "Not implemented",
+      websiteDescription: `A code path that has not been implemented was unexpectedly triggered.
+
 Please [report it](https://github.com/nomiclabs/hardhat/issues/new) to help us improve Hardhat.`,
       shouldBeReported: true,
     },

v-next/hardhat/src/internal/artifacts/artifacts-manager.ts

@@ -0,0 +1,76 @@
+import type {
+  Artifact,
+  ArtifactsManager,
+  BuildInfo,
+  CompilerInput,
+  CompilerOutput,
+} from "../../types/artifacts.js";
+
+import { HardhatError } from "@ignored/hardhat-vnext-errors";
+
+export class ArtifactsManagerImplementation implements ArtifactsManager {
+  public readArtifact(
+    _contractNameOrFullyQualifiedName: string,
+  ): Promise<Artifact> {
+    throw new HardhatError(HardhatError.ERRORS.INTERNAL.NOT_IMPLEMENTED_ERROR, {
+      message: "Not implemented in fake artifacts manager",
+    });
+  }
+
+  public artifactExists(
+    _contractNameOrFullyQualifiedName: string,
+  ): Promise<boolean> {
+    throw new HardhatError(HardhatError.ERRORS.INTERNAL.NOT_IMPLEMENTED_ERROR, {
+      message: "Not implemented in fake artifacts manager",
+    });
+  }
+
+  public getAllFullyQualifiedNames(): Promise<string[]> {
+    throw new HardhatError(HardhatError.ERRORS.INTERNAL.NOT_IMPLEMENTED_ERROR, {
+      message: "Not implemented in fake artifacts manager",
+    });
+  }
+
+  public getBuildInfo(
+    _fullyQualifiedName: string,
+  ): Promise<BuildInfo | undefined> {
+    throw new HardhatError(HardhatError.ERRORS.INTERNAL.NOT_IMPLEMENTED_ERROR, {
+      message: "Not implemented in fake artifacts manager",
+    });
+  }
+
+  public getArtifactPaths(): Promise<string[]> {
+    throw new HardhatError(HardhatError.ERRORS.INTERNAL.NOT_IMPLEMENTED_ERROR, {
+      message: "Not implemented in fake artifacts manager",
+    });
+  }
+
+  public getBuildInfoPaths(): Promise<string[]> {
+    throw new HardhatError(HardhatError.ERRORS.INTERNAL.NOT_IMPLEMENTED_ERROR, {
+      message: "Not implemented in fake artifacts manager",
+    });
+  }
+
+  public saveArtifact(_artifact: Artifact): Promise<void> {
+    throw new HardhatError(HardhatError.ERRORS.INTERNAL.NOT_IMPLEMENTED_ERROR, {
+      message: "Not implemented in fake artifacts manager",
+    });
+  }
+
+  public saveBuildInfo(
+    _solcVersion: string,
+    _solcLongVersion: string,
+    _input: CompilerInput,
+    _output: CompilerOutput,
+  ): Promise<string> {
+    throw new HardhatError(HardhatError.ERRORS.INTERNAL.NOT_IMPLEMENTED_ERROR, {
+      message: "Not implemented in fake artifacts manager",
+    });
+  }
+
+  public getArtifactPath(_fullyQualifiedName: string): Promise<string> {
+    throw new HardhatError(HardhatError.ERRORS.INTERNAL.NOT_IMPLEMENTED_ERROR, {
+      message: "Not implemented in fake artifacts manager",
+    });
+  }
+}

v-next/hardhat/src/internal/builtin-plugins/artifacts/hookHandlers/hre.ts

@@ -0,0 +1,13 @@
+import type { HardhatRuntimeEnvironmentHooks } from "../../../../types/hooks.js";
+
+import { ArtifactsManagerImplementation } from "../../../artifacts/artifacts-manager.js";
+
+export default async (): Promise<Partial<HardhatRuntimeEnvironmentHooks>> => {
+  const handlers: Partial<HardhatRuntimeEnvironmentHooks> = {
+    created: async (_context, hre): Promise<void> => {
+      hre.artifacts = new ArtifactsManagerImplementation();
+    },
+  };
+
+  return handlers;
+};

v-next/hardhat/src/internal/builtin-plugins/artifacts/index.ts

@@ -0,0 +1,11 @@
+import type { HardhatPlugin } from "../../../types/plugins.js";
+import "./type-extensions.js";
+
+const hardhatPlugin: HardhatPlugin = {
+  id: "artifacts",
+  hookHandlers: {
+    hre: import.meta.resolve("./hookHandlers/hre.js"),
+  },
+};
+
+export default hardhatPlugin;

v-next/hardhat/src/internal/builtin-plugins/artifacts/type-extensions.ts

@@ -0,0 +1,7 @@
+import type { ArtifactsManager } from "../../../types/artifacts.js";
+
+declare module "../../../types/hre.js" {
+  interface HardhatRuntimeEnvironment {
+    artifacts: ArtifactsManager;
+  }
+}

v-next/hardhat/src/internal/builtin-plugins/index.ts

@@ -1,5 +1,6 @@
 import type { HardhatPlugin } from "../../types/plugins.js";
 
+import artifacts from "./artifacts/index.js";
 import clean from "./clean/index.js";
 import console from "./console/index.js";
 import networkManager from "./network-manager/index.js";
@@ -8,14 +9,15 @@ import solidity from "./solidity/index.js";
 
 // Note: When importing a plugin, you have to export its types, so that its
 // type extensions, if any, also get loaded.
+export type * from "./artifacts/index.js";
 export type * from "./solidity/index.js";
 export type * from "./network-manager/index.js";
 export type * from "./clean/index.js";
 export type * from "./console/index.js";
-export type * from "./network-manager/index.js";
 export type * from "./run/index.js";
 
 export const builtinPlugins: HardhatPlugin[] = [
+  artifacts,
   solidity,
   networkManager,
   clean,

v-next/hardhat/src/internal/core/hre.ts

@@ -1,4 +1,5 @@
 import type { UnsafeHardhatRuntimeEnvironmentOptions } from "./types.js";
+import type { ArtifactsManager } from "../../types/artifacts.js";
 import type {
   HardhatUserConfig,
   HardhatConfig,
@@ -40,6 +41,7 @@ export class HardhatRuntimeEnvironmentImplementation
   // here, because it's added by a plugin. But as that plugin is builtin, its
   // type extensions also affect this module.
   public network!: NetworkManager;
+  public artifacts!: ArtifactsManager;
 
   public static async create(
     inputUserConfig: HardhatUserConfig,