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Fix: change import source by config #35

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merged 2 commits into from
Feb 2, 2024
Merged

Fix: change import source by config #35

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c2eaa66
fix: change import source by config
ClarkXia Feb 1, 2024
7bcb7d4
chore: update cargo lock
ClarkXia Feb 2, 2024
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2 changes: 1 addition & 1 deletion Cargo.lock
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221 changes: 101 additions & 120 deletions crates/swc_change_package_import/src/change_package_import.rs
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Original file line number Diff line number Diff line change
@@ -1,10 +1,10 @@
use swc_core::{
common::{util::take::Take, DUMMY_SP},
common::DUMMY_SP,
ecma::{
ast::*,
atoms::JsWord,
utils::{quote_str, swc_ecma_ast::ImportSpecifier},
visit::{VisitMut, VisitMutWith},
visit::{noop_fold_type, Fold, FoldWith},
},
};

Expand All @@ -13,142 +13,127 @@ use crate::config::{Config, ImportType};
pub struct ModuleImportVisitor {
// 用户配置
pub options: Vec<Config>,
// 全新生成的导入声明
new_stmts: Vec<ModuleItem>,
}

impl ModuleImportVisitor {
pub fn new(options: Vec<Config>) -> Self {
Self {
options,
new_stmts: vec![],
}
Self { options }
}
}

impl VisitMut for ModuleImportVisitor {
fn visit_mut_import_decl(&mut self, import_decl: &mut ImportDecl) {
import_decl.visit_mut_children_with(self);

for option in &self.options {
match option {
Config::LiteralConfig(src) => {
if is_hit_rule(import_decl, option) {
for specifier in &import_decl.specifiers {
match specifier {
ImportSpecifier::Named(named_import_spec) => {
let mut import_new_src = src.clone();
import_new_src.push_str("/");
import_new_src.push_str(&get_import_module_name(named_import_spec));

self.new_stmts.push(create_default_import_decl(
import_new_src,
named_import_spec.local.clone(),
));
impl Fold for ModuleImportVisitor {
noop_fold_type!();

fn fold_module_items(&mut self, items: Vec<ModuleItem>) -> Vec<ModuleItem> {
let mut new_items: Vec<ModuleItem> = vec![];

for item in items {
let item = item.fold_children_with(self);
let mut hit_rule = false;
if let ModuleItem::ModuleDecl(ModuleDecl::Import(import_decl)) = &item {
for option in &self.options {
match option {
Config::LiteralConfig(src) => {
if is_hit_rule(import_decl, option) {
hit_rule = true;
for specifier in &import_decl.specifiers {
match specifier {
ImportSpecifier::Named(named_import_spec) => {
let mut import_new_src = src.clone();
import_new_src.push_str("/");
import_new_src.push_str(&get_import_module_name(named_import_spec));

new_items.push(create_default_import_decl(
import_new_src,
named_import_spec.local.clone(),
));
}
_ => (),
}
}
_ => (),
break;
}
}
// 清空当前导入声明，否则会被作为有效的声明添加至 new_stmts 中
import_decl.take();
break;
}
}
Config::SpecificConfig(config) => {
if is_hit_rule(import_decl, option) {
let target_fields: Vec<&String> = config.map.keys().clone().collect();
let mut named_import_spec_copy = import_decl.clone();

// 获取未命中规则的导入声明
named_import_spec_copy.specifiers = named_import_spec_copy
.specifiers
.into_iter()
.filter(|specifier| match specifier {
ImportSpecifier::Named(named_import_spec) => {
let import_object_name = get_import_module_name(named_import_spec);
!target_fields.contains(&&import_object_name)
Config::SpecificConfig(config) => {
if is_hit_rule(import_decl, option) {
hit_rule = true;
let target_fields: Vec<&String> = config.map.keys().clone().collect();
let mut named_import_spec_copy = import_decl.clone();

named_import_spec_copy.specifiers = named_import_spec_copy
.specifiers
.into_iter()
.filter(|specifier| match specifier {
ImportSpecifier::Named(named_import_spec) => {
let import_object_name = get_import_module_name(named_import_spec);
!target_fields.contains(&&import_object_name)
}
_ => true,
})
.collect::<Vec<_>>();

if named_import_spec_copy.specifiers.len() != 0 {
// It no need to redirect import source, if some specifiers are not configured.
new_items.push(item.clone());
break;
}
_ => true,
})
.collect::<Vec<_>>();

if named_import_spec_copy.specifiers.len() != 0 {
self
.new_stmts
.push(ModuleItem::ModuleDecl(ModuleDecl::Import(
named_import_spec_copy,
)));
}

for (target, rules) in config.map.iter() {
for specifier in &import_decl.specifiers {
match specifier {
ImportSpecifier::Named(named_import_spec) => {
let import_object_name = get_import_module_name(named_import_spec);
if target == &import_object_name {
let new_import_decl: ModuleItem;
if rules.import_type.is_none()
|| match rules.import_type.as_ref().unwrap() {
ImportType::Default => true,
_ => false,
}
{
// Default import mode
new_import_decl = create_default_import_decl(
rules.to.to_string(),
named_import_spec.local.clone(),
);
} else {
// Named import mode
let mut named_import_spec_copy = named_import_spec.clone();

if rules.name.is_some() {
named_import_spec_copy.imported = Some(ModuleExportName::Str(Str {
span: named_import_spec.span,
value: rules.name.clone().unwrap().into(),
raw: Some(rules.name.clone().unwrap().clone().into()),
}))
for specifier in &import_decl.specifiers {
for (target, rules) in config.map.iter() {
match specifier {
ImportSpecifier::Named(named_import_spec) => {
let import_object_name = get_import_module_name(named_import_spec);
if target == &import_object_name {
let new_import_decl: ModuleItem;
if rules.import_type.is_none()
|| match rules.import_type.as_ref().unwrap() {
ImportType::Default => true,
_ => false,
}
{
// Default import mode
new_import_decl = create_default_import_decl(
rules.to.to_string(),
named_import_spec.local.clone(),
);
} else {
// Named import mode
let mut named_import_spec_copy = named_import_spec.clone();

if rules.name.is_some() {
named_import_spec_copy.imported = Some(ModuleExportName::Str(Str {
span: named_import_spec.span,
value: rules.name.clone().unwrap().into(),
raw: Some(rules.name.clone().unwrap().clone().into()),
}))
}

new_import_decl = create_named_import_decl(
rules.to.to_string(),
vec![ImportSpecifier::Named(named_import_spec_copy)],
);
}

new_items.push(new_import_decl);
}

new_import_decl = create_named_import_decl(
rules.to.to_string(),
vec![ImportSpecifier::Named(named_import_spec_copy)],
);
}

self.new_stmts.push(new_import_decl);
_ => (),
}
}
_ => (),
}
break;
}
}
import_decl.take();
break;
}
}
}
}

if !is_empty_decl(import_decl) {
self
.new_stmts
.push(wrap_with_moudle_item(import_decl.clone()));
}
}

fn visit_mut_module_item(&mut self, n: &mut ModuleItem) {
n.visit_mut_children_with(self);

if !n.is_module_decl() {
self.new_stmts.push(n.clone());
if !hit_rule {
new_items.push(item);
}
} else {
new_items.push(item);
}
}
}

fn visit_mut_module_items(&mut self, stmts: &mut Vec<ModuleItem>) {
stmts.visit_mut_children_with(self);

*stmts = self.new_stmts.clone();
new_items
}
}

Expand All @@ -169,10 +154,6 @@ fn is_hit_rule(cur_import: &ImportDecl, rule: &Config) -> bool {
}
}

fn is_empty_decl(decl: &ImportDecl) -> bool {
decl.specifiers.len() == 0 && decl.src.value == JsWord::from("".to_string())
}

fn get_import_module_name(named_import_spec: &ImportNamedSpecifier) -> String {
if named_import_spec.imported.is_none() {
(&named_import_spec.local.sym).to_string()
Expand Down
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