#61, printing the Map interfaces.

package.json

@@ -27,7 +27,7 @@
     "debug-stage-three-integration": "TSMS_STAGE='three' TSMS_DEBUG='stage_3_integration' node --import ./register-hooks.js ./build.ts",
     "debug-stage-three-test": "TSMS_STAGE='three' TSMS_DEBUG='stage_three_test' node --import ./register-hooks.js ./build.ts",
     "use-cases": "TSMS_STAGE='use-cases' node --import ./register-hooks.js ./build.ts",
-    "debug-use-cases": "TSMS_STAGE='use-cases' TSMS_DEBUG='use-cases' --import ./register-hooks.js ./build.ts",
+    "debug-use-cases": "TSMS_STAGE='use-cases' TSMS_DEBUG='use-cases' node --import ./register-hooks.js ./build.ts",
     "tsc-tasks": "tsc --project ./utilities/source/tasks/tsconfig.json",
     "postinstall": "patch-package",
     "is-repo-clean": "node --import ./register-hooks.js ./utilities/source/assertRepoIsClean.ts"

use-cases/build/StringStringMap.ts

@@ -1,11 +1,18 @@
 import path from "path";
+
+import {
+  type InterfaceDeclaration,
+  type SourceFile,
+} from "ts-morph";
+
 import {
   distDir,
   project,
   removeDistFile,
   //getExistingSourceFile,
-} from "./sharedProject.js";
-import { SourceFile } from "ts-morph";
+} from "./utilities/sharedProject.js";
+
+import getTypeScriptNodes from "./utilities/typescript-builtins.js";
 
 export default async function buildStringStringMap(): Promise<void>
 {
@@ -40,6 +47,14 @@ export default class StringStringMap<V> {
     `.trim()
   );
 
+  /* What are we dealing with? */
+  const MapInterfaceNodes = getTypeScriptNodes<InterfaceDeclaration>(
+    sourceFile => sourceFile.getInterfaces().filter(ifc => ifc.getName() === "Map")
+  ).map(entry => entry[1]);
+  for (const node of MapInterfaceNodes) {
+    console.log(node.print());
+  }
+
   await moduleFile.save();
   return Promise.resolve();
 }

use-cases/build/sharedProject.ts → use-cases/build/utilities/sharedProject.ts

@@ -5,9 +5,11 @@ import url from "url";
 import {
   ModuleKind,
   ModuleResolutionKind,
+  type Node,
   Project,
   type ProjectOptions,
   ScriptTarget,
+  type Structures,
   SourceFile,
 } from "ts-morph";
 
@@ -24,8 +26,13 @@ const TSC_CONFIG: ProjectOptions = {
   skipFileDependencyResolution: true,
 };
 
-export const stageDir = path.normalize(path.join(url.fileURLToPath(import.meta.url), "../../"));
+export interface NodeWithStructures extends Node {
+  getStructure(): Structures;
+}
+
+export const stageDir = path.normalize(path.join(url.fileURLToPath(import.meta.url), "../../../"));
 export const distDir = path.join(stageDir, "dist");
+export const projectDir = path.dirname(stageDir);
 
 export const project = new Project(TSC_CONFIG);
 
@@ -46,3 +53,4 @@ export function getExistingSourceFile(
 {
   return project.getSourceFile(absolutePathToFile) ?? project.addSourceFileAtPath(absolutePathToFile);
 }
+

use-cases/build/utilities/typescript-builtins.ts

@@ -0,0 +1,41 @@
+import fs from "fs/promises";
+import path from "path";
+
+import {
+  type SourceFile
+} from "ts-morph";
+
+import {
+  NodeWithStructures,
+  project,
+  projectDir,
+} from "./sharedProject.js";
+
+const TYPESCRIPT_LIBS = path.join(projectDir, "node_modules/typescript/lib");
+const fileNames = (await fs.readdir(TYPESCRIPT_LIBS)).filter(f => /^lib\..*\.d.ts$/.test(f)).map(f => path.join(TYPESCRIPT_LIBS, f));
+const sourceFiles: readonly SourceFile[] = project.addSourceFilesAtPaths(fileNames);
+
+export default function getTypeScriptNodes<
+  NodeKind extends NodeWithStructures
+>
+(
+  callback: (sourceFile: SourceFile) => NodeKind[]
+): [string, NodeKind][]
+{
+  return sourceFiles.map(
+    sourceFile => processSourceFile(sourceFile, callback)
+  ).flat();
+}
+
+function processSourceFile<
+  NodeKind extends NodeWithStructures
+>
+(
+  sourceFile: SourceFile,
+  callback: (sourceFile: SourceFile) => NodeKind[]
+): [string, NodeKind][]
+{
+  const nodes = callback(sourceFile);
+  const pathToSourceFile = sourceFile.getFilePath();
+  return nodes.map(node => [pathToSourceFile, node]);
+}