G: reference types

This commit is contained in:
Aleksey Kladov 2018-02-11 11:54:09 +03:00
parent 555c4ae375
commit eb4c05d572
5 changed files with 71 additions and 0 deletions

View file

@ -108,6 +108,7 @@ Grammar(
"POINTER_TYPE",
"ARRAY_TYPE",
"SLICE_TYPE",
"REFERENCE_TYPE",
"EXTERN_BLOCK",
"ENUM_VARIANT",

View file

@ -6,6 +6,7 @@ pub(super) fn type_(p: &mut Parser) {
EXCL => never_type(p),
STAR => pointer_type(p),
L_BRACK => array_or_slice_type(p),
AMPERSAND => reference_type(p),
IDENT => path_type(p),
_ => {
p.error("expected type");
@ -115,6 +116,20 @@ fn array_or_slice_type(p: &mut Parser) {
m.complete(p, kind);
}
// test reference_type;
// type A = &();
// type B = &'static ();
// type C = &mut ();
fn reference_type(p: &mut Parser) {
assert!(p.at(AMPERSAND));
let m = p.start();
p.bump();
p.eat(LIFETIME);
p.eat(MUT_KW);
type_no_plus(p);
m.complete(p, REFERENCE_TYPE);
}
fn path_type(p: &mut Parser) {
assert!(p.at(IDENT));
let m = p.start();

View file

@ -106,6 +106,7 @@ pub enum SyntaxKind {
POINTER_TYPE,
ARRAY_TYPE,
SLICE_TYPE,
REFERENCE_TYPE,
EXTERN_BLOCK,
ENUM_VARIANT,
NAMED_FIELD,
@ -238,6 +239,7 @@ impl SyntaxKind {
POINTER_TYPE => &SyntaxInfo { name: "POINTER_TYPE" },
ARRAY_TYPE => &SyntaxInfo { name: "ARRAY_TYPE" },
SLICE_TYPE => &SyntaxInfo { name: "SLICE_TYPE" },
REFERENCE_TYPE => &SyntaxInfo { name: "REFERENCE_TYPE" },
EXTERN_BLOCK => &SyntaxInfo { name: "EXTERN_BLOCK" },
ENUM_VARIANT => &SyntaxInfo { name: "ENUM_VARIANT" },
NAMED_FIELD => &SyntaxInfo { name: "NAMED_FIELD" },

View file

@ -0,0 +1,3 @@
type A = &();
type B = &'static ();
type C = &mut ();

View file

@ -0,0 +1,50 @@
FILE@[0; 54)
TYPE_ITEM@[0; 14)
TYPE_KW@[0; 4)
NAME@[4; 7)
WHITESPACE@[4; 5)
IDENT@[5; 6) "A"
WHITESPACE@[6; 7)
EQ@[7; 8)
REFERENCE_TYPE@[8; 12)
WHITESPACE@[8; 9)
AMPERSAND@[9; 10)
TUPLE_TYPE@[10; 12)
L_PAREN@[10; 11)
R_PAREN@[11; 12)
SEMI@[12; 13)
WHITESPACE@[13; 14)
TYPE_ITEM@[14; 36)
TYPE_KW@[14; 18)
NAME@[18; 21)
WHITESPACE@[18; 19)
IDENT@[19; 20) "B"
WHITESPACE@[20; 21)
EQ@[21; 22)
REFERENCE_TYPE@[22; 34)
WHITESPACE@[22; 23)
AMPERSAND@[23; 24)
LIFETIME@[24; 31) "'static"
TUPLE_TYPE@[31; 34)
WHITESPACE@[31; 32)
L_PAREN@[32; 33)
R_PAREN@[33; 34)
SEMI@[34; 35)
WHITESPACE@[35; 36)
TYPE_ITEM@[36; 54)
TYPE_KW@[36; 40)
NAME@[40; 43)
WHITESPACE@[40; 41)
IDENT@[41; 42) "C"
WHITESPACE@[42; 43)
EQ@[43; 44)
REFERENCE_TYPE@[44; 52)
WHITESPACE@[44; 45)
AMPERSAND@[45; 46)
MUT_KW@[46; 49)
TUPLE_TYPE@[49; 52)
WHITESPACE@[49; 50)
L_PAREN@[50; 51)
R_PAREN@[51; 52)
SEMI@[52; 53)
WHITESPACE@[53; 54)