feat: add sourcemap support

alangpierce · Dec 22, 2021 · b2f3cac · b2f3cac
1 parent 57b8eff
commit b2f3cac
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Showing 2 changed files with 17 additions and 0 deletions.
diff --git a/package.json b/package.json
@@ -49,6 +49,7 @@
     "@types/mocha": "^5.2.7",
     "@types/mz": "^0.0.32",
     "@types/node": "^12.12.7",
+    "@types/source-map-support": "^0.5.4",
     "@typescript-eslint/eslint-plugin": "^4.11.1",
     "@typescript-eslint/parser": "^4.11.1",
     "chalk": "2.4.1",
@@ -72,6 +73,7 @@
     "lines-and-columns": "^1.1.6",
     "mz": "^2.7.0",
     "pirates": "^4.0.1",
+    "source-map-support": "^0.5.21",
     "ts-interface-checker": "^0.1.9"
   },
   "engines": {

diff --git a/src/register.ts b/src/register.ts
@@ -1,4 +1,5 @@
 import * as pirates from "pirates";
+import sourceMapSupport from "source-map-support";
 
 import {Options, transform} from "./index";
 
@@ -29,23 +30,36 @@ export function addHook(
   );
 }
 
+let sourceMapInstalled = false;
+
+const installSourceMap = (): void => {
+  if (sourceMapInstalled) return;
+  sourceMapInstalled = true;
+  sourceMapSupport.install();
+};
+
 export function registerJS(hookOptions?: HookOptions): RevertFunction {
+  installSourceMap();
   return addHook(".js", {transforms: ["imports", "flow", "jsx"]}, hookOptions);
 }
 
 export function registerJSX(hookOptions?: HookOptions): RevertFunction {
+  installSourceMap();
   return addHook(".jsx", {transforms: ["imports", "flow", "jsx"]}, hookOptions);
 }
 
 export function registerTS(hookOptions?: HookOptions): RevertFunction {
+  installSourceMap();
   return addHook(".ts", {transforms: ["imports", "typescript"]}, hookOptions);
 }
 
 export function registerTSX(hookOptions?: HookOptions): RevertFunction {
+  installSourceMap();
   return addHook(".tsx", {transforms: ["imports", "typescript", "jsx"]}, hookOptions);
 }
 
 export function registerTSLegacyModuleInterop(hookOptions?: HookOptions): RevertFunction {
+  installSourceMap();
   return addHook(
     ".ts",
     {
@@ -57,6 +71,7 @@ export function registerTSLegacyModuleInterop(hookOptions?: HookOptions): Revert
 }
 
 export function registerTSXLegacyModuleInterop(hookOptions?: HookOptions): RevertFunction {
+  installSourceMap();
   return addHook(
     ".tsx",
     {