fix(compile): respect compiler options for emit (#22521)

`deno compile` was ignoring configuration file and thus not applying
`compilerOptions` to influence the way files were emitted.

Author: bartlomieju

cli/tools/compile.rs

@@ -72,8 +72,12 @@ pub async fn compile(
     graph
   };
 
+  let ts_config_for_emit =
+    cli_options.resolve_ts_config_for_emit(deno_config::TsConfigType::Emit)?;
+  let emit_options =
+    crate::args::ts_config_to_emit_options(ts_config_for_emit.ts_config);
   let parser = parsed_source_cache.as_capturing_parser();
-  let eszip = eszip::EszipV2::from_graph(graph, &parser, Default::default())?;
+  let eszip = eszip::EszipV2::from_graph(graph, &parser, emit_options)?;
 
   log::info!(
     "{} {} to {}",

tests/integration/compile_tests.rs

@@ -1178,3 +1178,32 @@ fn dynamic_import_bad_data_uri() {
     "[WILDCARD]TypeError: Unable to decode data url.[WILDCARD]",
   );
 }
+
+#[test]
+fn standalone_config_file_respects_compiler_options() {
+  let context = TestContextBuilder::new().build();
+  let dir = context.temp_dir();
+  let exe = if cfg!(windows) {
+    dir.path().join("compiler_options.exe")
+  } else {
+    dir.path().join("compiler_options")
+  };
+  context
+    .new_command()
+    .args_vec([
+      "compile",
+      "--allow-read",
+      "--config",
+      "compile/compiler_options/deno.json",
+      "--output",
+      &exe.to_string_lossy(),
+      "./compile/compiler_options/main.ts",
+    ])
+    .run()
+    .skip_output_check()
+    .assert_exit_code(0);
+  let output = context.new_command().name(&exe).run();
+
+  output.assert_exit_code(0);
+  output.assert_matches_text("[WILDCARD]C.test() called[WILDCARD]");
+}

tests/testdata/compile/compiler_options/deno.json

@@ -0,0 +1,5 @@
+{
+  "compilerOptions": {
+    "experimentalDecorators": true
+  }
+}

tests/testdata/compile/compiler_options/main.ts

@@ -0,0 +1,42 @@
+// deno-lint-ignore-file
+function a() {
+  console.log("@A evaluated");
+  return function (
+    target: any,
+    propertyKey: string,
+    descriptor: PropertyDescriptor,
+  ) {
+    console.log("@A called");
+    const fn = descriptor.value;
+    descriptor.value = function () {
+      console.log("fn() called from @A");
+      fn();
+    };
+  };
+}
+
+function b() {
+  console.log("@B evaluated");
+  return function (
+    target: any,
+    propertyKey: string,
+    descriptor: PropertyDescriptor,
+  ) {
+    console.log("@B called");
+    const fn = descriptor.value;
+    descriptor.value = function () {
+      console.log("fn() called from @B");
+      fn();
+    };
+  };
+}
+
+class C {
+  @a()
+  @b()
+  static test() {
+    console.log("C.test() called");
+  }
+}
+
+C.test();