syntax,ssr: Implement statement parsing

crates/syntax/src/lib.rs

@@ -212,6 +212,13 @@ impl ast::Attr {
     }
 }
 
+impl ast::Stmt {
+    /// Returns `text`, parsed as statement, but only if it has no errors.
+    pub fn parse(text: &str) -> Result<Self, ()> {
+        parsing::parse_text_fragment(text, parser::FragmentKind::Statement)
+    }
+}
+
 /// Matches a `SyntaxNode` against an `ast` type.
 ///
 /// # Example:

crates/syntax/src/tests.rs

@@ -102,6 +102,15 @@ fn type_parser_tests() {
     );
 }
 
+#[test]
+fn stmt_parser_tests() {
+    fragment_parser_dir_test(
+        &["parser/fragments/stmt/ok"],
+        &["parser/fragments/stmt/err"],
+        crate::ast::Stmt::parse,
+    );
+}
+
 #[test]
 fn parser_fuzz_tests() {
     for (_, text) in collect_rust_files(&test_data_dir(), &["parser/fuzz-failures"]) {