manage undefined & null keywords

jycouet · jycouet · commit 6ba7e83f8cef · 2025-06-05T14:07:18.000+02:00
diff --git a/src/handlers.js b/src/handlers.js
@@ -478,6 +478,12 @@ function handle_type_annotation(node, state) {
 		case 'TSSymbolKeyword':
 			state.commands.push('symbol');
 			break;
+			case 'TSNullKeyword':
+				state.commands.push('null');
+				break;
+		case 'TSUndefinedKeyword':
+			state.commands.push('undefined');
+			break;
 		case 'TSArrayType':
 			handle_type_annotation(node.elementType, state);
 			state.commands.push('[]');
diff --git a/test/samples/ts-null-keyword/expected.ts b/test/samples/ts-null-keyword/expected.ts
@@ -0,0 +1 @@
+let a: string | null = null;
diff --git a/test/samples/ts-null-keyword/expected.ts.map b/test/samples/ts-null-keyword/expected.ts.map
@@ -0,0 +1,11 @@
+{
+  "version": 3,
+  "names": [],
+  "sources": [
+    "input.js"
+  ],
+  "sourcesContent": [
+    "let a: string | null = null"
+  ],
+  "mappings": "IAAI,CAAgB,kBAAG,IAAI"
+}
diff --git a/test/samples/ts-null-keyword/input.ts b/test/samples/ts-null-keyword/input.ts
@@ -0,0 +1 @@
+let a: string | null = null
diff --git a/test/samples/ts-undefined-keyword/expected.ts b/test/samples/ts-undefined-keyword/expected.ts
@@ -0,0 +1,3 @@
+let a: number | undefined;
+
+a = 2;
diff --git a/test/samples/ts-undefined-keyword/expected.ts.map b/test/samples/ts-undefined-keyword/expected.ts.map
@@ -0,0 +1,11 @@
+{
+  "version": 3,
+  "names": [],
+  "sources": [
+    "input.js"
+  ],
+  "sourcesContent": [
+    "let a: number | undefined\na = 2"
+  ],
+  "mappings": "IAAI,CAAqB;;AACzB,CAAC,GAAG,CAAC"
+}
diff --git a/test/samples/ts-undefined-keyword/input.ts b/test/samples/ts-undefined-keyword/input.ts
@@ -0,0 +1,2 @@
+let a: number | undefined
+a = 2

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+let a: number \| undefined;`
	`2`	`+`
	`3`	`+a = 2;`