fix: extract_module selection inside impl
This commit is contained in:
vi_mi
parent
5b9e46b960
commit
5789caf60e
@ -7,6 +7,7 @@ use ide_db::{
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defs::{Definition, NameClass, NameRefClass},
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search::{FileReference, SearchScope},
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};
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use parser::SyntaxKind::WHITESPACE;
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use stdx::format_to;
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use syntax::{
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algo::find_node_at_range,
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@ -59,6 +60,20 @@ pub(crate) fn extract_module(acc: &mut Assists, ctx: &AssistContext) -> Option<(
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syntax::NodeOrToken::Token(t) => t.parent()?,
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};
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//If the selection is inside impl block, we need to place new module outside impl block,
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//as impl blocks cannot contain modules
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let mut impl_parent: Option<ast::Impl> = None;
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let mut impl_child_count: usize = 0;
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if let Some(parent_assoc_list) = node.parent() {
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if let Some(parent_impl) = parent_assoc_list.parent() {
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if let Some(impl_) = ast::Impl::cast(parent_impl) {
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impl_child_count = parent_assoc_list.children().count();
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impl_parent = Some(impl_);
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}
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}
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}
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let mut curr_parent_module: Option<ast::Module> = None;
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if let Some(mod_syn_opt) = node.ancestors().find(|it| ast::Module::can_cast(it.kind())) {
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curr_parent_module = ast::Module::cast(mod_syn_opt);
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@ -98,18 +113,55 @@ pub(crate) fn extract_module(acc: &mut Assists, ctx: &AssistContext) -> Option<(
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"Extract Module",
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module.text_range,
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|builder| {
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let _ = &module;
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let mut body_items: Vec<String> = Vec::new();
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let mut items_to_be_processed: Vec<ast::Item> = module.body_items.clone();
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let mut new_item_indent = old_item_indent + 1;
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let mut body_items = Vec::new();
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let new_item_indent = old_item_indent + 1;
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for item in module.body_items {
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if impl_parent.is_some() {
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new_item_indent = old_item_indent + 2;
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} else {
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items_to_be_processed = [module.use_items.clone(), items_to_be_processed].concat();
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}
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for item in items_to_be_processed {
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let item = item.indent(IndentLevel(1));
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let mut indented_item = String::new();
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format_to!(indented_item, "{}{}", new_item_indent, item.to_string());
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body_items.push(indented_item);
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}
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let body = body_items.join("\n\n");
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let mut body = body_items.join("\n\n");
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if let Some(impl_) = &impl_parent {
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let mut impl_body_def = String::new();
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if let Some(self_ty) = impl_.self_ty() {
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format_to!(
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impl_body_def,
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"{}impl {} {{\n{}\n{}}}",
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old_item_indent + 1,
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self_ty.to_string(),
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body,
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old_item_indent + 1
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);
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body = impl_body_def;
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// Add the import for enum/struct corresponding to given impl block
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if let Some(_) = module.make_use_stmt_of_node_with_super(self_ty.syntax()) {
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for item in module.use_items {
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let mut indented_item = String::new();
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format_to!(
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indented_item,
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"{}{}",
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old_item_indent + 1,
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item.to_string()
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);
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body = format!("{}\n\n{}", indented_item, body);
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}
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}
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}
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}
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let mut module_def = String::new();
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@ -135,7 +187,29 @@ pub(crate) fn extract_module(acc: &mut Assists, ctx: &AssistContext) -> Option<(
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for import_path_text_range in import_paths_to_be_removed {
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builder.delete(import_path_text_range);
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}
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builder.replace(module.text_range, module_def)
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if let Some(impl_) = impl_parent {
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let node_to_be_removed;
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// Remove complete impl block if it has only one child (as such it will be empty
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// after deleting that child)
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if impl_child_count == 1 {
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node_to_be_removed = impl_.syntax()
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} else {
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//Remove selected node
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node_to_be_removed = &node;
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}
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builder.delete(node_to_be_removed.text_range());
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// Remove preceding indentation from node
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if let Some(range) = indent_range_before_given_node(&node_to_be_removed) {
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builder.delete(range);
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}
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builder.insert(impl_.syntax().text_range().end(), format!("\n\n{}", module_def));
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} else {
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builder.replace(module.text_range, module_def)
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}
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},
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)
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}
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@ -144,16 +218,24 @@ pub(crate) fn extract_module(acc: &mut Assists, ctx: &AssistContext) -> Option<(
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struct Module {
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text_range: TextRange,
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name: String,
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body_items: Vec<ast::Item>,
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body_items: Vec<ast::Item>, // All items except use items
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use_items: Vec<ast::Item>, // Use items are kept separately as they help when the selection is inside an impl block, we can directly take these items and keep them outside generated impl block inside generated module
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}
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fn extract_target(node: &SyntaxNode, selection_range: TextRange) -> Option<Module> {
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let mut use_items = vec![];
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let mut body_items: Vec<ast::Item> = node
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.children()
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.filter_map(|child| {
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if let Some(item) = ast::Item::cast(child) {
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if selection_range.contains_range(item.syntax().text_range()) {
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return Some(item);
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if selection_range.contains_range(child.text_range()) {
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let child_kind = child.kind();
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if let Some(item) = ast::Item::cast(child) {
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if ast::Use::can_cast(child_kind) {
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use_items.push(item);
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} else {
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return Some(item);
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}
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}
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return None;
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}
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@ -165,7 +247,7 @@ fn extract_target(node: &SyntaxNode, selection_range: TextRange) -> Option<Modul
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body_items.push(node_item);
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}
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Some(Module { text_range: selection_range, name: "modname".to_string(), body_items })
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Some(Module { text_range: selection_range, name: "modname".to_string(), body_items, use_items })
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}
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impl Module {
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@ -543,23 +625,27 @@ impl Module {
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let use_ =
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make::use_(None, make::use_tree(make::join_paths(use_tree_str), None, None, false));
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if let Some(item) = ast::Item::cast(use_.syntax().clone()) {
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self.body_items.insert(0, item);
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self.use_items.insert(0, item);
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}
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}
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import_path_to_be_removed
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}
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fn make_use_stmt_of_node_with_super(&mut self, node_syntax: &SyntaxNode) {
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fn make_use_stmt_of_node_with_super(&mut self, node_syntax: &SyntaxNode) -> Option<ast::Item> {
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let super_path = make::ext::ident_path("super");
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let node_path = make::ext::ident_path(&node_syntax.to_string());
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let use_ = make::use_(
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None,
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make::use_tree(make::join_paths(vec![super_path, node_path]), None, None, false),
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);
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if let Some(item) = ast::Item::cast(use_.syntax().clone()) {
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self.body_items.insert(0, item);
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self.use_items.insert(0, item.clone());
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return Some(item);
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}
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return None;
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}
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fn process_use_stmt_for_import_resolve(
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@ -859,6 +945,14 @@ fn compare_hir_and_ast_module(
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return Some(());
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}
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fn indent_range_before_given_node(node: &SyntaxNode) -> Option<TextRange> {
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let x = node.siblings_with_tokens(syntax::Direction::Prev).find(|x| {
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return x.kind() == WHITESPACE;
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})?;
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return Some(x.text_range());
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}
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#[cfg(test)]
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mod tests {
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use crate::tests::{check_assist, check_assist_not_applicable};
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@ -1435,4 +1529,63 @@ mod modname {
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",
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)
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}
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#[test]
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fn test_if_inside_impl_block_generate_module_outside() {
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check_assist(
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extract_module,
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r"
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struct A {}
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impl A {
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$0fn foo() {}$0
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fn bar() {}
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}
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",
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r"
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struct A {}
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impl A {
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fn bar() {}
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}
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mod modname {
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use super::A;
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impl A {
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pub(crate) fn foo() {}
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}
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}
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",
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)
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}
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#[test]
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fn test_if_inside_impl_block_generate_module_outside_but_impl_block_having_one_child() {
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check_assist(
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extract_module,
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r"
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struct A {}
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struct B {}
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impl A {
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$0fn foo(x: B) {}$0
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}
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",
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r"
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struct A {}
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struct B {}
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mod modname {
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use super::B;
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use super::A;
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impl A {
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pub(crate) fn foo(x: B) {}
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}
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}
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",
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)
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}
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}
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