From acc0c45ebdc33b65eb3c451ac1d799977465aa61 Mon Sep 17 00:00:00 2001
From: Kostya Kurilov <krizka@gmail.com>
Date: Thu, 6 Jun 2024 18:18:26 +0300
Subject: [PATCH] Add support for experimentalDecorators ts option. To use with
 TS5 decorators (#606)

Co-authored-by: kriz <kos@treenity.pro>
---
 README.md                     | 2 ++
 typescript-json-schema-cli.ts | 3 +++
 typescript-json-schema.ts     | 4 ++++
 3 files changed, 9 insertions(+)

diff --git a/README.md b/README.md
index 021428cc..3586ba6b 100644
--- a/README.md
+++ b/README.md
@@ -52,6 +52,8 @@ Options:
   --defaultNumberType   Default number type.                                         [choices: "number", "integer"] [default: "number"]
   --tsNodeRegister      Use ts-node/register (needed for require typescript files).  [boolean] [default: false]
   --constAsEnum         Use enums with a single value when declaring constants.      [boolean] [default: false]
+  --experimentalDecorators  Use experimentalDecorators when loading typescript modules.
+   [boolean] [default: true]
 ```
 
 ### Programmatic use
diff --git a/typescript-json-schema-cli.ts b/typescript-json-schema-cli.ts
index 97418620..c1bb17ba 100644
--- a/typescript-json-schema-cli.ts
+++ b/typescript-json-schema-cli.ts
@@ -32,6 +32,8 @@ export function run() {
             .describe("esModuleInterop", "Use esModuleInterop when loading typescript modules.")
         .boolean("skipLibCheck").default("skipLibCheck", defaultArgs.skipLibCheck)
             .describe("skipLibCheck", "Use skipLibCheck when loading typescript modules.")
+        .boolean("experimentalDecorators").default("experimentalDecorators", defaultArgs.experimentalDecorators)
+            .describe("skipLibCheck", "Use experimentalDecorators when loading typescript modules.")
         .boolean("ignoreErrors").default("ignoreErrors", defaultArgs.ignoreErrors)
             .describe("ignoreErrors", "Generate even if the program has errors.")
         .alias("out", "o")
@@ -70,6 +72,7 @@ export function run() {
         strictNullChecks: args.strictNullChecks,
         esModuleInterop: args.esModuleInterop,
         skipLibCheck: args.skipLibCheck,
+        experimentalDecorators: args.experimentalDecorators,
         ignoreErrors: args.ignoreErrors,
         out: args.out,
         validationKeywords: args.validationKeywords,
diff --git a/typescript-json-schema.ts b/typescript-json-schema.ts
index 86f38724..8471203f 100644
--- a/typescript-json-schema.ts
+++ b/typescript-json-schema.ts
@@ -49,6 +49,7 @@ export function getDefaultArgs(): Args {
         strictNullChecks: false,
         esModuleInterop: false,
         skipLibCheck: false,
+        experimentalDecorators: true,
         ignoreErrors: false,
         out: "",
         validationKeywords: [],
@@ -81,6 +82,7 @@ export type Args = {
     esModuleInterop: boolean;
     skipLibCheck: boolean;
     ignoreErrors: boolean;
+    experimentalDecorators: boolean;
     out: string;
     validationKeywords: string[];
     include: string[];
@@ -1833,6 +1835,8 @@ export async function exec(filePattern: string, fullTypeName: string, args = get
             strictNullChecks: args.strictNullChecks,
             esModuleInterop: args.esModuleInterop,
             skipLibCheck: args.skipLibCheck,
+            emitDecoratorMetadata: args.experimentalDecorators,
+            experimentalDecorators: args.experimentalDecorators,
         });
         onlyIncludeFiles = onlyIncludeFiles.map(normalizeFileName);
     }