131 lines
2.8 KiB
Rust
131 lines
2.8 KiB
Rust
use ide_db::{
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assists::{AssistId, AssistKind},
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base_db::AnchoredPathBuf,
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};
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use syntax::{ast, AstNode};
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use crate::{
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assist_context::{AssistContext, Assists},
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utils::trimmed_text_range,
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};
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// Assist: move_from_mod_rs
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//
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// Moves xxx/mod.rs to xxx.rs.
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//
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// ```
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// //- /main.rs
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// mod a;
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// //- /a/mod.rs
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// $0fn t() {}$0
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// ```
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// ->
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// ```
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// fn t() {}
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// ```
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pub(crate) fn move_from_mod_rs(acc: &mut Assists, ctx: &AssistContext) -> Option<()> {
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let source_file = ctx.find_node_at_offset::<ast::SourceFile>()?;
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let module = ctx.sema.to_module_def(ctx.file_id())?;
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// Enable this assist if the user select all "meaningful" content in the source file
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let trimmed_selected_range = trimmed_text_range(&source_file, ctx.selection_trimmed());
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let trimmed_file_range = trimmed_text_range(&source_file, source_file.syntax().text_range());
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if !module.is_mod_rs(ctx.db()) {
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cov_mark::hit!(not_mod_rs);
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return None;
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}
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if trimmed_selected_range != trimmed_file_range {
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cov_mark::hit!(not_all_selected);
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return None;
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}
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let target = source_file.syntax().text_range();
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let module_name = module.name(ctx.db())?.to_string();
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let path = format!("../{}.rs", module_name);
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let dst = AnchoredPathBuf { anchor: ctx.file_id(), path };
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acc.add(
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AssistId("move_from_mod_rs", AssistKind::Refactor),
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format!("Convert {}/mod.rs to {}.rs", module_name, module_name),
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target,
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|builder| {
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builder.move_file(ctx.file_id(), dst);
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},
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)
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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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use super::*;
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#[test]
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fn trivial() {
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check_assist(
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move_from_mod_rs,
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r#"
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//- /main.rs
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mod a;
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//- /a/mod.rs
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$0fn t() {}
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$0"#,
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r#"
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//- /a.rs
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fn t() {}
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"#,
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);
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}
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#[test]
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fn must_select_all_file() {
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cov_mark::check!(not_all_selected);
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check_assist_not_applicable(
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move_from_mod_rs,
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r#"
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//- /main.rs
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mod a;
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//- /a/mod.rs
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fn t() {}$0
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"#,
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);
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cov_mark::check!(not_all_selected);
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check_assist_not_applicable(
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move_from_mod_rs,
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r#"
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//- /main.rs
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mod a;
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//- /a/mod.rs
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$0fn$0 t() {}
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"#,
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);
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}
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#[test]
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fn cannot_move_not_mod_rs() {
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cov_mark::check!(not_mod_rs);
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check_assist_not_applicable(
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move_from_mod_rs,
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r#"//- /main.rs
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mod a;
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//- /a.rs
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$0fn t() {}$0
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"#,
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);
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}
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#[test]
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fn cannot_downgrade_main_and_lib_rs() {
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check_assist_not_applicable(
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move_from_mod_rs,
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r#"//- /main.rs
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$0fn t() {}$0
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"#,
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);
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check_assist_not_applicable(
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move_from_mod_rs,
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r#"//- /lib.rs
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$0fn t() {}$0
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"#,
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);
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}
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}
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