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-rw-r--r--crates/ra_ide/src/ssr.rs12
1 files changed, 12 insertions, 0 deletions
diff --git a/crates/ra_ide/src/ssr.rs b/crates/ra_ide/src/ssr.rs
index 9f8e540c0..b3e9e5dfe 100644
--- a/crates/ra_ide/src/ssr.rs
+++ b/crates/ra_ide/src/ssr.rs
@@ -10,6 +10,18 @@ use ra_ssr::{MatchFinder, SsrError, SsrRule};
10// The syntax for a structural search replace command is `<search_pattern> ==>> <replace_pattern>`. 10// The syntax for a structural search replace command is `<search_pattern> ==>> <replace_pattern>`.
11// A `$<name>` placeholder in the search pattern will match any AST node and `$<name>` will reference it in the replacement. 11// A `$<name>` placeholder in the search pattern will match any AST node and `$<name>` will reference it in the replacement.
12// Within a macro call, a placeholder will match up until whatever token follows the placeholder. 12// Within a macro call, a placeholder will match up until whatever token follows the placeholder.
13//
14// Placeholders may be given constraints by writing them as `${<name>:<constraint1>:<constraint2>...}`.
15//
16// Supported constraints:
17//
18// |===
19// | Constraint | Restricts placeholder
20//
21// | kind(literal) | Is a literal (e.g. `42` or `"forty two"`)
22// | not(a) | Negates the constraint `a`
23// |===
24//
13// Available via the command `rust-analyzer.ssr`. 25// Available via the command `rust-analyzer.ssr`.
14// 26//
15// ```rust 27// ```rust