G: for type

grammar.ron

@@ -111,6 +111,7 @@ Grammar(
         "REFERENCE_TYPE",
         "PLACEHOLDER_TYPE",
         "FN_POINTER_TYPE",
+        "FOR_TYPE",
 
         "EXTERN_BLOCK",
         "ENUM_VARIANT",

src/parser/grammar/types.rs

@@ -9,6 +9,7 @@ pub(super) fn type_(p: &mut Parser) {
         AMPERSAND => reference_type(p),
         UNDERSCORE => placeholder_type(p),
         FN_KW | UNSAFE_KW | EXTERN_KW => fn_pointer_type(p),
+        FOR_KW => for_type(p),
         IDENT => path_type(p),
         _ => {
             p.error("expected type");
@@ -166,6 +167,17 @@ fn fn_pointer_type(p: &mut Parser) {
     m.complete(p, FN_POINTER_TYPE);
 }
 
+// test for_type
+// type A = for<'a> fn() -> ();
+fn for_type(p: &mut Parser) {
+    assert!(p.at(FOR_KW));
+    let m = p.start();
+    p.bump();
+    type_params::list(p);
+    type_(p);
+    m.complete(p, FOR_TYPE);
+}
+
 fn path_type(p: &mut Parser) {
     assert!(p.at(IDENT));
     let m = p.start();

src/syntax_kinds.rs

@@ -109,6 +109,7 @@ pub enum SyntaxKind {
     REFERENCE_TYPE,
     PLACEHOLDER_TYPE,
     FN_POINTER_TYPE,
+    FOR_TYPE,
     EXTERN_BLOCK,
     ENUM_VARIANT,
     NAMED_FIELD,
@@ -244,6 +245,7 @@ impl SyntaxKind {
             REFERENCE_TYPE => &SyntaxInfo { name: "REFERENCE_TYPE" },
             PLACEHOLDER_TYPE => &SyntaxInfo { name: "PLACEHOLDER_TYPE" },
             FN_POINTER_TYPE => &SyntaxInfo { name: "FN_POINTER_TYPE" },
+            FOR_TYPE => &SyntaxInfo { name: "FOR_TYPE" },
             EXTERN_BLOCK => &SyntaxInfo { name: "EXTERN_BLOCK" },
             ENUM_VARIANT => &SyntaxInfo { name: "ENUM_VARIANT" },
             NAMED_FIELD => &SyntaxInfo { name: "NAMED_FIELD" },

tests/data/parser/inline/0031_for_type.rs

@@ -0,0 +1 @@
+type A = for<'a> fn() -> ();

tests/data/parser/inline/0031_for_type.txt

@@ -0,0 +1,29 @@
+FILE@[0; 29)
+  TYPE_ITEM@[0; 29)
+    TYPE_KW@[0; 4)
+    NAME@[4; 7)
+      WHITESPACE@[4; 5)
+      IDENT@[5; 6) "A"
+      WHITESPACE@[6; 7)
+    EQ@[7; 8)
+    FOR_TYPE@[8; 27)
+      WHITESPACE@[8; 9)
+      FOR_KW@[9; 12)
+      TYPE_PARAM_LIST@[12; 17)
+        L_ANGLE@[12; 13)
+        LIFETIME_PARAM@[13; 15)
+          LIFETIME@[13; 15) "'a"
+        R_ANGLE@[15; 16)
+        WHITESPACE@[16; 17)
+      FN_POINTER_TYPE@[17; 27)
+        FN_KW@[17; 19)
+        L_PAREN@[19; 20)
+        R_PAREN@[20; 21)
+        WHITESPACE@[21; 22)
+        THIN_ARROW@[22; 24)
+        TUPLE_TYPE@[24; 27)
+          WHITESPACE@[24; 25)
+          L_PAREN@[25; 26)
+          R_PAREN@[26; 27)
+    SEMI@[27; 28)
+    WHITESPACE@[28; 29)