refactor(es): Extract parser/codegen code for swc::Compiler (#8030)

Author: kdy1

Cargo.lock

@@ -42,3 +42,4 @@ swc_core = { version = "0.83.18", features = [
   "ecma_minifier",
 ] }
 swc_node_base = "0.5.8"
+swc_compiler_base = { version = "0.1.0", features = ["node"] }

bindings/Cargo.lock

@@ -27,7 +27,7 @@ concurrent = [
 debug = ["swc_ecma_visit/debug"]
 default = ["es3"]
 es3 = []
-node = ["napi", "napi-derive"]
+node = ["napi", "napi-derive", "swc_compiler_base/node"]
 plugin = [
   "swc_plugin_runner/ecma",
   "swc_plugin_runner/rkyv-impl",
@@ -73,6 +73,7 @@ swc_common = { version = "0.32.1", path = "../swc_common", features = [
   "sourcemap",
   "parking_lot",
 ] }
+swc_compiler_base = { version = "0.1.0", path = "../swc_compiler_base" }
 swc_config = { version = "0.1.7", path = "../swc_config" }
 swc_ecma_ast = { version = "0.109.1", path = "../swc_ecma_ast" }
 swc_ecma_codegen = { version = "0.145.5", path = "../swc_ecma_codegen" }

bindings/binding_minifier_node/Cargo.toml

@@ -1,10 +1,6 @@
-#![cfg_attr(
-    any(not(any(feature = "plugin")), target_arch = "wasm32"),
-    allow(unused)
-)]
 use std::{
     collections::{HashMap, HashSet},
-    env, fmt,
+    env,
     path::{Path, PathBuf},
     sync::Arc,
     usize,
@@ -16,20 +12,19 @@ use either::Either;
 use indexmap::IndexMap;
 use once_cell::sync::Lazy;
 use rustc_hash::FxHashMap;
-use serde::{
-    de::{Unexpected, Visitor},
-    Deserialize, Deserializer, Serialize, Serializer,
-};
+use serde::{Deserialize, Serialize};
 use swc_atoms::JsWord;
 use swc_cached::regex::CachedRegex;
+#[allow(unused)]
+use swc_common::plugin::metadata::TransformPluginMetadataContext;
 use swc_common::{
     chain,
     collections::{AHashMap, AHashSet, ARandomState},
     comments::{Comments, SingleThreadedComments},
     errors::Handler,
-    plugin::metadata::TransformPluginMetadataContext,
     FileName, Mark, SourceMap, SyntaxContext,
 };
+pub use swc_compiler_base::{IsModule, SourceMapsConfig};
 use swc_config::{
     config_types::{BoolConfig, BoolOr, BoolOrDataConfig, MergingOption},
     merge::Merge,
@@ -40,15 +35,11 @@ use swc_ecma_lints::{
     config::LintConfig,
     rules::{lint_to_fold, LintParams},
 };
-use swc_ecma_loader::{
-    resolvers::{lru::CachingResolver, node::NodeModulesResolver, tsc::TsConfigResolver},
-    TargetEnv,
+use swc_ecma_loader::resolvers::{
+    lru::CachingResolver, node::NodeModulesResolver, tsc::TsConfigResolver,
 };
 pub use swc_ecma_minifier::js::*;
-use swc_ecma_minifier::option::{
-    terser::{TerserCompressorOptions, TerserEcmaVersion, TerserTopLevelOptions},
-    MangleOptions,
-};
+use swc_ecma_minifier::option::terser::TerserTopLevelOptions;
 #[allow(deprecated)]
 pub use swc_ecma_parser::JscTarget;
 use swc_ecma_parser::{parse_file_as_expr, Syntax, TsConfig};
@@ -111,74 +102,6 @@ pub fn init_plugin_module_cache_once(
     });
 }
 
-#[derive(Clone, Debug, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub enum IsModule {
-    Bool(bool),
-    Unknown,
-}
-
-impl Default for IsModule {
-    fn default() -> Self {
-        IsModule::Bool(true)
-    }
-}
-
-impl Merge for IsModule {
-    fn merge(&mut self, other: Self) {
-        if *self == Default::default() {
-            *self = other;
-        }
-    }
-}
-
-impl Serialize for IsModule {
-    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
-    where
-        S: Serializer,
-    {
-        match *self {
-            IsModule::Bool(ref b) => b.serialize(serializer),
-            IsModule::Unknown => "unknown".serialize(serializer),
-        }
-    }
-}
-
-impl<'de> Deserialize<'de> for IsModule {
-    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-    where
-        D: Deserializer<'de>,
-    {
-        struct IsModuleVisitor;
-
-        impl<'de> Visitor<'de> for IsModuleVisitor {
-            type Value = IsModule;
-
-            fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-                formatter.write_str("a boolean or the string 'unknown'")
-            }
-
-            fn visit_bool<E>(self, b: bool) -> Result<Self::Value, E>
-            where
-                E: serde::de::Error,
-            {
-                Ok(IsModule::Bool(b))
-            }
-
-            fn visit_str<E>(self, s: &str) -> Result<Self::Value, E>
-            where
-                E: serde::de::Error,
-            {
-                match s {
-                    "unknown" => Ok(IsModule::Unknown),
-                    _ => Err(serde::de::Error::invalid_value(Unexpected::Str(s), &self)),
-                }
-            }
-        }
-
-        deserializer.deserialize_any(IsModuleVisitor)
-    }
-}
-
 #[derive(Default, Clone, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct ParseOptions {
@@ -273,32 +196,6 @@ impl Options {
     }
 }
 
-/// Configuration related to source map generated by swc.
-#[derive(Clone, Serialize, Deserialize, Debug)]
-#[serde(untagged)]
-pub enum SourceMapsConfig {
-    Bool(bool),
-    Str(String),
-}
-
-impl SourceMapsConfig {
-    pub fn enabled(&self) -> bool {
-        match *self {
-            SourceMapsConfig::Bool(b) => b,
-            SourceMapsConfig::Str(ref s) => {
-                assert_eq!(s, "inline", "Source map must be true, false or inline");
-                true
-            }
-        }
-    }
-}
-
-impl Default for SourceMapsConfig {
-    fn default() -> Self {
-        SourceMapsConfig::Bool(true)
-    }
-}
-
 #[derive(Debug, Clone, Serialize, Deserialize)]
 #[serde(untagged)]
 pub enum InputSourceMap {
@@ -694,7 +591,11 @@ impl Options {
 
                 let plugin_resolver = CachingResolver::new(
                     40,
-                    NodeModulesResolver::new(TargetEnv::Node, Default::default(), true),
+                    NodeModulesResolver::new(
+                        swc_ecma_loader::TargetEnv::Node,
+                        Default::default(),
+                        true,
+                    ),
                 );
 
                 if let Some(plugins) = &experimental.plugins {

crates/swc/Cargo.toml

@@ -1,6 +1,4 @@
-use serde_json;
-
-use crate::{parse_swcrc, Options};
+use crate::parse_swcrc;
 
 #[test]
 fn object() {

crates/swc/src/config/mod.rs

@@ -0,0 +1,41 @@
+[package]
+authors       = ["강동윤 <kdy1997.dev@gmail.com>"]
+description   = "Base crate for the 'swc' crate. This is not a public API."
+documentation = "https://rustdoc.swc.rs/swc_compiler_base/"
+edition       = "2021"
+include       = ["Cargo.toml", "src/**/*.rs"]
+license       = "Apache-2.0"
+name          = "swc_compiler_base"
+repository    = "https://github.com/swc-project/swc.git"
+version       = "0.1.0"
+
+[features]
+node = ["napi", "napi-derive"]
+
+[dependencies]
+anyhow           = "1.0.75"
+base64           = "0.13.0"
+pathdiff         = "0.2.0"
+serde            = { version = "1.0.188", features = ["derive"] }
+sourcemap        = "6.2"
+swc_atoms        = { version = "0.5.9", path = "../swc_atoms" }
+swc_common       = { version = "0.32.1", path = "../swc_common" }
+swc_config       = { version = "0.1.7", path = "../swc_config" }
+swc_ecma_ast     = { version = "0.109.1", path = "../swc_ecma_ast" }
+swc_ecma_codegen = { version = "0.145.5", path = "../swc_ecma_codegen" }
+swc_ecma_minifier = { version = "0.187.22", path = "../swc_ecma_minifier" }
+swc_ecma_parser  = { version = "0.140.0", path = "../swc_ecma_parser" }
+swc_ecma_visit   = { version = "0.95.1", path = "../swc_ecma_visit" }
+swc_timer        = { version = "0.20.1", path = "../swc_timer" }
+
+    [dependencies.napi-derive]
+    default-features = false
+    features         = ["type-def"]
+    optional         = true
+    version          = "2.0.0"
+
+    [dependencies.napi]
+    default-features = false
+    features         = ["napi3"]
+    optional         = true
+    version          = "2.0.0"