Unnamed repository; edit this file 'description' to name the repository.
Add a few default snippets for VSCode
Lukas Wirth 2021-12-17
parent f79f3db · commit 9fe0f0d
-rw-r--r--crates/ide_completion/src/completions/postfix.rs3
-rw-r--r--crates/ide_completion/src/snippet.rs54
-rw-r--r--crates/rust-analyzer/src/config.rs43
-rw-r--r--docs/user/generated_config.adoc42
-rw-r--r--editors/code/package.json42
5 files changed, 175 insertions, 9 deletions
diff --git a/crates/ide_completion/src/completions/postfix.rs b/crates/ide_completion/src/completions/postfix.rs
index c239401e48..d455976b03 100644
--- a/crates/ide_completion/src/completions/postfix.rs
+++ b/crates/ide_completion/src/completions/postfix.rs
@@ -163,9 +163,6 @@ pub(crate) fn complete_postfix(acc: &mut Completions, ctx: &CompletionContext) {
}
postfix_snippet("box", "Box::new(expr)", &format!("Box::new({})", receiver_text)).add_to(acc);
- postfix_snippet("ok", "Ok(expr)", &format!("Ok({})", receiver_text)).add_to(acc);
- postfix_snippet("err", "Err(expr)", &format!("Err({})", receiver_text)).add_to(acc);
- postfix_snippet("some", "Some(expr)", &format!("Some({})", receiver_text)).add_to(acc);
postfix_snippet("dbg", "dbg!(expr)", &format!("dbg!({})", receiver_text)).add_to(acc);
postfix_snippet("dbgr", "dbg!(&expr)", &format!("dbg!(&{})", receiver_text)).add_to(acc);
postfix_snippet("call", "function(expr)", &format!("${{1}}({})", receiver_text)).add_to(acc);
diff --git a/crates/ide_completion/src/snippet.rs b/crates/ide_completion/src/snippet.rs
index 1a3f42b839..c5e2b009c7 100644
--- a/crates/ide_completion/src/snippet.rs
+++ b/crates/ide_completion/src/snippet.rs
@@ -52,8 +52,56 @@ use std::ops::Deref;
// These placeholders take the form of `$number` or `${number:placeholder_text}` which can be traversed as tabstop in ascending order starting from 1,
// with `$0` being a special case that always comes last.
//
-// There is also a special placeholder, `${receiver}`, which will be replaced by the receiver expression for postfix snippets, or nothing in case of normal snippets.
-// It does not act as a tabstop.
+// There is also a special placeholder, `${receiver}`, which will be replaced by the receiver expression for postfix snippets, or a `$0` tabstop in case of normal snippets.
+// This replacement for normal snippets allows you to reuse a snippet for both post- and prefix in a single definition.
+//
+// For the VSCode editor, rust-analyzer also ships with a small set of defaults which can be removed
+// by overwriting the settings object mentioned above, the defaults are:
+// [source,json]
+// ----
+// {
+// "Arc::new": {
+// "postfix": "arc",
+// "body": "Arc::new(${receiver})",
+// "requires": "std::sync::Arc",
+// "description": "Put the expression into an `Arc`",
+// "scope": "expr"
+// },
+// "Rc::new": {
+// "postfix": "rc",
+// "body": "Rc::new(${receiver})",
+// "requires": "std::rc::Rc",
+// "description": "Put the expression into an `Rc`",
+// "scope": "expr"
+// },
+// "Box::pin": {
+// "postfix": "pinbox",
+// "body": "Box::pin(${receiver})",
+// "requires": "std::boxed::Box",
+// "description": "Put the expression into a pinned `Box`",
+// "scope": "expr"
+// },
+// "Ok": {
+// "postfix": "ok",
+// "body": "Ok(${receiver})",
+// "description": "Wrap the expression in a `Result::Ok`",
+// "scope": "expr"
+// },
+// "Err": {
+// "postfix": "err",
+// "body": "Err(${receiver})",
+// "description": "Wrap the expression in a `Result::Err`",
+// "scope": "expr"
+// },
+// "Some": {
+// "postfix": "some",
+// "body": "Some(${receiver})",
+// "description": "Wrap the expression in an `Option::Some`",
+// "scope": "expr"
+// }
+// }
+// ----
+
use ide_db::helpers::{import_assets::LocatedImport, insert_use::ImportScope};
use itertools::Itertools;
use syntax::{ast, AstNode, GreenNode, SyntaxNode};
@@ -117,7 +165,7 @@ impl Snippet {
}
pub fn snippet(&self) -> String {
- self.snippet.replace("${receiver}", "")
+ self.snippet.replace("${receiver}", "$0")
}
pub fn postfix_snippet(&self, receiver: &str) -> String {
diff --git a/crates/rust-analyzer/src/config.rs b/crates/rust-analyzer/src/config.rs
index 5826b6b114..867f2bd1f0 100644
--- a/crates/rust-analyzer/src/config.rs
+++ b/crates/rust-analyzer/src/config.rs
@@ -116,7 +116,48 @@ config_data! {
/// Whether to add parenthesis when completing functions.
completion_addCallParenthesis: bool = "true",
/// Custom completion snippets.
- completion_snippets: FxHashMap<String, SnippetDef> = "{}",
+ // NOTE: Keep this list in sync with the feature docs of user snippets.
+ completion_snippets: FxHashMap<String, SnippetDef> = r#"{
+ "Arc::new": {
+ "postfix": "arc",
+ "body": "Arc::new(${receiver})",
+ "requires": "std::sync::Arc",
+ "description": "Put the expression into an `Arc`",
+ "scope": "expr"
+ },
+ "Rc::new": {
+ "postfix": "rc",
+ "body": "Rc::new(${receiver})",
+ "requires": "std::rc::Rc",
+ "description": "Put the expression into an `Rc`",
+ "scope": "expr"
+ },
+ "Box::pin": {
+ "postfix": "pinbox",
+ "body": "Box::pin(${receiver})",
+ "requires": "std::boxed::Box",
+ "description": "Put the expression into a pinned `Box`",
+ "scope": "expr"
+ },
+ "Ok": {
+ "postfix": "ok",
+ "body": "Ok(${receiver})",
+ "description": "Wrap the expression in a `Result::Ok`",
+ "scope": "expr"
+ },
+ "Err": {
+ "postfix": "err",
+ "body": "Err(${receiver})",
+ "description": "Wrap the expression in a `Result::Err`",
+ "scope": "expr"
+ },
+ "Some": {
+ "postfix": "some",
+ "body": "Some(${receiver})",
+ "description": "Wrap the expression in an `Option::Some`",
+ "scope": "expr"
+ }
+ }"#,
/// Whether to show postfix snippets like `dbg`, `if`, `not`, etc.
completion_postfix_enable: bool = "true",
/// Toggles the additional completions that automatically add imports when completed.
diff --git a/docs/user/generated_config.adoc b/docs/user/generated_config.adoc
index 9f6f046014..494051b306 100644
--- a/docs/user/generated_config.adoc
+++ b/docs/user/generated_config.adoc
@@ -141,7 +141,47 @@ Only applies when `#rust-analyzer.completion.addCallParenthesis#` is set.
--
Whether to add parenthesis when completing functions.
--
-[[rust-analyzer.completion.snippets]]rust-analyzer.completion.snippets (default: `{}`)::
+[[rust-analyzer.completion.snippets]]rust-analyzer.completion.snippets (default: `{
+ "Arc::new": {
+ "postfix": "arc",
+ "body": "Arc::new(${receiver})",
+ "requires": "std::sync::Arc",
+ "description": "Put the expression into an `Arc`",
+ "scope": "expr"
+ },
+ "Rc::new": {
+ "postfix": "rc",
+ "body": "Rc::new(${receiver})",
+ "requires": "std::rc::Rc",
+ "description": "Put the expression into an `Rc`",
+ "scope": "expr"
+ },
+ "Box::pin": {
+ "postfix": "pinbox",
+ "body": "Box::pin(${receiver})",
+ "requires": "std::boxed::Box",
+ "description": "Put the expression into a pinned `Box`",
+ "scope": "expr"
+ },
+ "Ok": {
+ "postfix": "ok",
+ "body": "Ok(${receiver})",
+ "description": "Wrap the expression in a `Result::Ok`",
+ "scope": "expr"
+ },
+ "Err": {
+ "postfix": "err",
+ "body": "Err(${receiver})",
+ "description": "Wrap the expression in a `Result::Err`",
+ "scope": "expr"
+ },
+ "Some": {
+ "postfix": "some",
+ "body": "Some(${receiver})",
+ "description": "Wrap the expression in an `Option::Some`",
+ "scope": "expr"
+ }
+ }`)::
+
--
Custom completion snippets.
diff --git a/editors/code/package.json b/editors/code/package.json
index 2460308820..d70ac9aacb 100644
--- a/editors/code/package.json
+++ b/editors/code/package.json
@@ -592,7 +592,47 @@
},
"rust-analyzer.completion.snippets": {
"markdownDescription": "Custom completion snippets.",
- "default": {},
+ "default": {
+ "Arc::new": {
+ "postfix": "arc",
+ "body": "Arc::new(${receiver})",
+ "requires": "std::sync::Arc",
+ "description": "Put the expression into an `Arc`",
+ "scope": "expr"
+ },
+ "Rc::new": {
+ "postfix": "rc",
+ "body": "Rc::new(${receiver})",
+ "requires": "std::rc::Rc",
+ "description": "Put the expression into an `Rc`",
+ "scope": "expr"
+ },
+ "Box::pin": {
+ "postfix": "pinbox",
+ "body": "Box::pin(${receiver})",
+ "requires": "std::boxed::Box",
+ "description": "Put the expression into a pinned `Box`",
+ "scope": "expr"
+ },
+ "Ok": {
+ "postfix": "ok",
+ "body": "Ok(${receiver})",
+ "description": "Wrap the expression in a `Result::Ok`",
+ "scope": "expr"
+ },
+ "Err": {
+ "postfix": "err",
+ "body": "Err(${receiver})",
+ "description": "Wrap the expression in a `Result::Err`",
+ "scope": "expr"
+ },
+ "Some": {
+ "postfix": "some",
+ "body": "Some(${receiver})",
+ "description": "Wrap the expression in an `Option::Some`",
+ "scope": "expr"
+ }
+ },
"type": "object"
},
"rust-analyzer.completion.postfix.enable": {