From 7e6d3c92096925580c081e3daa59292900fd724b Mon Sep 17 00:00:00 2001
From: Haled Odat <halidodat@gmail.com>
Date: Sat, 18 Mar 2023 03:30:22 +0000
Subject: [PATCH] Add `--strict` flag to cli (#2689)

This PR adds the `--strict` flag to the CLI that enables strict mode on file/interactive mode execution.

It's a bit annoying to have to prefix with `'use strict';`  when trying to debug in interactive mode
```js
>>> 'use strict'; .... // :(
```

It changes the following:
- Adds `--strict` flag to CLI
- update `README.md`
---
 README.md           | 3 +++
 boa_cli/src/main.rs | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/README.md b/README.md
index 3ae24be2a0e..b5230b8d462 100644
--- a/README.md
+++ b/README.md
@@ -82,6 +82,9 @@ Arguments:
           The JavaScript file(s) to be evaluated
 
 Options:
+      --strict
+          Run in strict mode
+
   -a, --dump-ast [<FORMAT>]
           Dump the AST to stdout with the given format
 
diff --git a/boa_cli/src/main.rs b/boa_cli/src/main.rs
index b36c6d28c0c..98d759f0d89 100644
--- a/boa_cli/src/main.rs
+++ b/boa_cli/src/main.rs
@@ -94,6 +94,10 @@ struct Opt {
     #[arg(name = "FILE", value_hint = ValueHint::FilePath)]
     files: Vec<PathBuf>,
 
+    /// Run in strict mode.
+    #[arg(long)]
+    strict: bool,
+
     /// Dump the AST to stdout with the given format.
     #[arg(
         long,
@@ -256,6 +260,9 @@ fn main() -> Result<(), io::Error> {
         .build()
         .expect("cannot fail with default global object");
 
+    // Strict mode
+    context.strict(args.strict);
+
     // Trace Output
     context.set_trace(args.trace);