feat(printer): add printer example

Cargo.lock

@@ -610,6 +610,7 @@ version = "0.0.0"
 dependencies = [
  "oxc_allocator",
  "oxc_ast",
+ "oxc_parser",
 ]
 
 [[package]]

crates/oxc_printer/Cargo.toml

@@ -12,3 +12,6 @@ version.workspace = true
 [dependencies]
 oxc_allocator = { path = "../oxc_allocator" }
 oxc_ast = { path = "../oxc_ast" }
+
+[dev_dependencies]
+oxc_parser = { path = "../oxc_parser" }

crates/oxc_printer/examples/simple.rs

@@ -0,0 +1,33 @@
+use std::{env, path::Path};
+
+use oxc_allocator::Allocator;
+use oxc_ast::SourceType;
+use oxc_parser::Parser;
+use oxc_printer::{Printer, PrinterOptions};
+
+// Instruction:
+// create a `test.js`,
+// run `cargo run -p oxc_printer --example simple`
+// or `cargo watch -x "run -p oxc_printer --example simple"`
+
+fn main() {
+    let name = env::args().nth(1).unwrap_or_else(|| "test.js".to_string());
+    let path = Path::new(&name);
+    let file = std::fs::read(path).expect("{name} not found");
+    let allocator = Allocator::default();
+    let source_text = String::from_utf8(file).expect("utf8");
+    let source_type = SourceType::from_path(path).unwrap();
+    let ret = Parser::new(&allocator, &source_text, source_type).parse();
+
+    if !ret.errors.is_empty() {
+        println!("Parse Failed.");
+        for error in &ret.errors {
+            println!("{error:?}");
+        }
+        return;
+    }
+
+    let printer_options = PrinterOptions::default();
+    let printed = Printer::new(source_text.len(), printer_options).build(&ret.program);
+    println!("{printed}");
+}