From a534524911e8b206beb06946ac5dfed2d1e65a71 Mon Sep 17 00:00:00 2001
From: Shunsuke Shibayama <sbym1346@gmail.com>
Date: Thu, 19 Sep 2024 15:19:50 +0900
Subject: [PATCH] fix: disable parallelization by default

---
 Cargo.toml                     |  2 ++
 crates/erg_common/config.rs    | 14 ++++++++++++++
 crates/erg_compiler/Cargo.toml |  2 ++
 crates/erg_linter/Cargo.toml   |  2 ++
 4 files changed, 20 insertions(+)

diff --git a/Cargo.toml b/Cargo.toml
index 7b5bf06ed..3d9d6c6bc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,6 +30,8 @@ repository = "https://github.com/erg-lang/erg"
 homepage = "https://erg-lang.org/"
 
 [features]
+# The parallelizing compiler was found to contain a bug that caused it to hang in complex dependencies, so it is disabled by default.
+default = ["single-thread"]
 # when "debug" feature is turned on, that of the following crates will also be turned on.
 debug = ["erg_common/debug", "erg_parser/debug", "erg_compiler/debug", "erg_linter/debug"] # "els/debug"
 backtrace = ["erg_common/backtrace", "els/backtrace"]
diff --git a/crates/erg_common/config.rs b/crates/erg_common/config.rs
index f52e399ed..724dffd3b 100644
--- a/crates/erg_common/config.rs
+++ b/crates/erg_common/config.rs
@@ -467,6 +467,8 @@ impl ErgConfig {
                 "--build-features" => {
                     #[cfg(feature = "debug")]
                     print!("debug ");
+                    #[cfg(feature = "backtrace")]
+                    println!("backtrace");
                     #[cfg(feature = "els")]
                     print!("els ");
                     #[cfg(feature = "py_compat")]
@@ -483,6 +485,18 @@ impl ErgConfig {
                     print!("pretty ");
                     #[cfg(feature = "large_thread")]
                     print!("large_thread");
+                    #[cfg(feature = "no_std")]
+                    println!("no_std");
+                    #[cfg(feature = "full-repl")]
+                    println!("full-repl");
+                    #[cfg(feature = "experimental")]
+                    println!("experimental");
+                    #[cfg(feature = "pylib")]
+                    println!("pylib");
+                    #[cfg(feature = "log-level-error")]
+                    println!("log-level-error");
+                    #[cfg(feature = "single-thread")]
+                    println!("single-thread");
                     println!();
                     process::exit(0);
                 }
diff --git a/crates/erg_compiler/Cargo.toml b/crates/erg_compiler/Cargo.toml
index c2502bf36..9d2b10f84 100644
--- a/crates/erg_compiler/Cargo.toml
+++ b/crates/erg_compiler/Cargo.toml
@@ -11,6 +11,8 @@ repository.workspace = true
 homepage.workspace = true
 
 [features]
+# The parallelizing compiler was found to contain a bug that caused it to hang in complex dependencies, so it is disabled by default.
+default = ["single-thread"]
 # when "debug" feature is turned on, that of parser will also be turned on.
 debug = ["erg_common/debug", "erg_parser/debug"]
 japanese = ["erg_common/japanese", "erg_parser/japanese"]
diff --git a/crates/erg_linter/Cargo.toml b/crates/erg_linter/Cargo.toml
index 9c1a46071..79cd15b27 100644
--- a/crates/erg_linter/Cargo.toml
+++ b/crates/erg_linter/Cargo.toml
@@ -10,6 +10,8 @@ repository.workspace = true
 homepage.workspace = true
 
 [features]
+# The parallelizing compiler was found to contain a bug that caused it to hang in complex dependencies, so it is disabled by default.
+default = ["single-thread"]
 debug = ["erg_common/debug", "erg_parser/debug", "erg_compiler/debug"]
 backtrace = ["erg_common/backtrace"]
 japanese = [