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feat: execute nested compile-time type matches

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This commit is contained in:
Valdemar Høgsvig Lorenzen
2026-10-27 01:03:19 +01:00
parent 85c60f2416
commit e5215c4092
7 changed files with 193 additions and 22 deletions
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source/parser/parse.hon
+11 -3
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@@ -282,6 +282,7 @@ parse_statement proc(state @mut State, allow_else bool) ast.NodeId ! ParseError
or next_n_is(state, 1, .struct)
or next_n_is(state, 1, .enum) or next_n_is(state, 1, .union)
or next_n_is(state, 1, .distinct)
or next_n_is(state, 1, .match)
or next_n_is(state, 1, .at)
or next_n_is(state, 1, .question)
or (next_n_is(state, 1, .open_paren) and pointer_binding_starts(state))
@@ -800,6 +801,7 @@ parse_type_atom proc(state @mut State) ast.NodeId ! ParseError {
if next_is(state, .struct) return try parse_record_type(state)
if next_is(state, .enum) return try parse_enum_type(state)
if next_is(state, .union) return try parse_union_type(state)
if next_is(state, .match) return try parse_match(state)
if (next_is(state, .distinct) or next_is(state, .alias)) return try parse_type_wrapper(state)
token :: try consume(state, .ident)
type := try ast.add_identifier(state.builder, token.span, token.data.str_id)
@@ -846,7 +848,7 @@ parse_function_type proc(state @mut State, start ast.Span, invalid bool) ast.Nod
starts_type proc(kind lexer.TokenKind) bool {
return (
kind == .ident or kind == .open_bracket or kind == .struct
or kind == .enum or kind == .union or kind == .distinct or kind == .alias
or kind == .enum or kind == .union or kind == .distinct or kind == .alias or kind == .match
or kind == .at or kind == .star or kind == .question or kind == .open_paren or kind == .proc
)
}
@@ -1498,6 +1500,7 @@ parse_index proc(state @mut State, base ast.NodeId, start u32) ast.NodeId ! Pars
@hide:file
array_starts_type proc(state @State) bool {
depth usize := 0
curly_depth := usize(0)
for (state.next_token)..(state.tokens.len) |i| {
kind :: state.tokens[i].kind
if (kind == .open_bracket) depth += 1
@@ -1509,7 +1512,12 @@ array_starts_type proc(state @State) bool {
return starts_type(next) or next == .mut
}
}
if (kind == .open_curly or kind == .close_curly or kind == .eof) return false
if (kind == .open_curly) curly_depth += 1
if (kind == .close_curly) {
if (curly_depth == 0) return false
curly_depth -= 1
}
if (kind == .eof) return false
}
return false
}
@@ -1587,7 +1595,7 @@ named_binding_starts proc(state @State) bool {
next_is(state, .ident)
and (
next_n_is(state, 1, .double_colon) or next_n_is(state, 1, .colon_equal)
or next_n_is(state, 1, .ident) or next_n_is(state, 1, .proc)
or next_n_is(state, 1, .ident) or next_n_is(state, 1, .proc) or next_n_is(state, 1, .match)
or next_n_is(state, 1, .at)
or next_n_is(state, 1, .question)
or (next_n_is(state, 1, .open_paren) and pointer_binding_starts(state))