fix: support TSModuleDeclaration (#44)

Author: manuel3108

.changeset/fresh-nails-lay.md

@@ -0,0 +1,5 @@
+---
+'esrap': patch
+---
+
+fix: support `TSModuleDeclaration`

src/handlers.js

@@ -1506,6 +1506,22 @@ const handlers = {
 		state.commands.push(dedent, newline, '}', newline);
 	},
 
+	TSModuleBlock(node, state) {
+		state.commands.push(' {', indent, newline);
+		sequence(node.body, state, false, handle);
+		state.commands.push(dedent, newline, '}');
+	},
+
+	TSModuleDeclaration(node, state) {
+		if (node.declare) state.commands.push('declare ');
+		else state.commands.push('namespace ');
+
+		handle(node.id, state);
+
+		if (!node.body) return;
+		handle(node.body, state);
+	},
+
 	TSNonNullExpression(node, state) {
 		handle(node.expression, state);
 		state.commands.push('!');

test/samples/ts-module-declaration/expected.ts

@@ -0,0 +1,7 @@
+declare global {
+	namespace App {
+		interface Error {}
+	}
+}
+
+export {};

test/samples/ts-module-declaration/expected.ts.map

@@ -0,0 +1,11 @@
+{
+  "version": 3,
+  "names": [],
+  "sources": [
+    "input.js"
+  ],
+  "sourcesContent": [
+    "declare global {\n\tnamespace App {\n\t\tinterface Error {}\n\t}\n}\n\nexport {};\n"
+  ],
+  "mappings": "QAAQ,MAAM;WACH,GAAG;YACF,KAAK;;;;"
+}

test/samples/ts-module-declaration/input.ts

@@ -0,0 +1,7 @@
+declare global {
+	namespace App {
+		interface Error {}
+	}
+}
+
+export {};