G: function item

grammar.ron

@@ -64,5 +64,6 @@ Grammar(
         "FILE",
         "STRUCT_ITEM",
         "STRUCT_FIELD",
+        "FN_ITEM",
     ]
 )

src/parser/event_parser/grammar.rs

@@ -22,8 +22,12 @@ fn inner_attributes(_: &mut Parser) {
 }
 
 fn item_first(p: &Parser) -> bool {
-    match p.current() {
-        Some(STRUCT_KW) => true,
+    let current = match p.current() {
+        Some(c) => c,
+        None => return false,
+    };
+    match current {
+        STRUCT_KW | FN_KW => true,
         _ => false,
     }
 }
@@ -31,7 +35,8 @@ fn item_first(p: &Parser) -> bool {
 fn item(p: &mut Parser) {
     outer_attributes(p);
     visibility(p);
-    node_if(p, STRUCT_KW, STRUCT_ITEM, struct_item);
+    node_if(p, STRUCT_KW, STRUCT_ITEM, struct_item)
+        || node_if(p, FN_KW, FN_ITEM, fn_item);
 }
 
 fn struct_item(p: &mut Parser) {
@@ -45,6 +50,12 @@ fn struct_field(p: &mut Parser) -> bool {
     })
 }
 
+fn fn_item(p: &mut Parser) {
+    p.expect(IDENT) && p.expect(L_PAREN) && p.expect(R_PAREN)
+        && p.curly_block(|p| ());
+}
+
+
 // Paths, types, attributes, and stuff //
 
 fn outer_attributes(_: &mut Parser) {

src/syntax_kinds.rs

@@ -61,8 +61,9 @@ pub const SHEBANG: SyntaxKind = SyntaxKind(56);
 pub const FILE: SyntaxKind = SyntaxKind(57);
 pub const STRUCT_ITEM: SyntaxKind = SyntaxKind(58);
 pub const STRUCT_FIELD: SyntaxKind = SyntaxKind(59);
+pub const FN_ITEM: SyntaxKind = SyntaxKind(60);
 
-static INFOS: [SyntaxInfo; 60] = [
+static INFOS: [SyntaxInfo; 61] = [
     SyntaxInfo { name: "USE_KW" },
     SyntaxInfo { name: "FN_KW" },
     SyntaxInfo { name: "STRUCT_KW" },
@@ -123,6 +124,7 @@ static INFOS: [SyntaxInfo; 60] = [
     SyntaxInfo { name: "FILE" },
     SyntaxInfo { name: "STRUCT_ITEM" },
     SyntaxInfo { name: "STRUCT_FIELD" },
+    SyntaxInfo { name: "FN_ITEM" },
 ];
 
 pub(crate) fn syntax_info(kind: SyntaxKind) -> &'static SyntaxInfo {

tests/data/parser/ok/0005_fn_item.rs

@@ -0,0 +1,2 @@
+fn foo() {
+}

tests/data/parser/ok/0005_fn_item.txt

@@ -0,0 +1,12 @@
+FILE@[0; 13)
+  FN_ITEM@[0; 13)
+    FN_KW@[0; 2)
+    WHITESPACE@[2; 3)
+    IDENT@[3; 6)
+    L_PAREN@[6; 7)
+    R_PAREN@[7; 8)
+    WHITESPACE@[8; 9)
+    L_CURLY@[9; 10)
+    WHITESPACE@[10; 11)
+    R_CURLY@[11; 12)
+    WHITESPACE@[12; 13)