forked from AbleOS/holey-bytes
adding '_ = <expr>' syntax
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parent
61250c906a
commit
999b25df8b
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@ -1008,9 +1008,9 @@ create_back_buffer := fn(total_pages: int): ^u32 {
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remaining := total_pages - 0xFF
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loop if remaining <= 0 break else {
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if remaining < 0xFF {
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_f := request_page(@intcast(remaining))
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_ = request_page(@intcast(remaining))
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} else {
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_f := request_page(0xFF)
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_ = request_page(0xFF)
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}
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remaining -= 0xFF
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}
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@ -346,6 +346,7 @@ impl<'a> Formatter<'a> {
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self.fmt(val, f)
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}
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Expr::Return { val: None, .. } => f.write_str("return"),
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Expr::Wildcard { .. } => f.write_str("_"),
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Expr::Ident { pos, is_ct, .. } => {
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if is_ct {
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f.write_str("$")?;
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@ -148,6 +148,7 @@ pub enum TokenKind {
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RBrack = b']',
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Xor = b'^',
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Tick = b'`',
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Under = b'_',
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// Unused = a-z
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LBrace = b'{',
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Bor = b'|',
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@ -308,6 +309,7 @@ gen_token_kind! {
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Null = b"null",
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Idk = b"idk",
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Die = b"die",
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Under = b"_",
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#[punkt]
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Ctor = ".{",
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Tupl = ".(",
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@ -392,6 +392,7 @@ impl<'a, 'b> Parser<'a, 'b> {
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let (id, is_first) = self.resolve_ident(token);
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E::Ident { pos, is_ct: token.kind == T::CtIdent, id, is_first }
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}
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T::Under => E::Wildcard { pos },
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T::If => E::If {
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pos,
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cond: self.ptr_expr()?,
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@ -800,6 +801,9 @@ generate_expr! {
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pos: Pos,
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val: Option<&'a Self>,
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},
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Wildcard {
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pos: Pos,
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},
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/// note: ':unicode:' is any utf-8 character except ascii
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/// `'[a-zA-Z_:unicode:][a-zA-Z0-9_:unicode:]*'`
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Ident {
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@ -2666,6 +2666,10 @@ impl<'a> Codegen<'a> {
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self.assign_pattern(left, right);
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Some(Value::VOID)
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}
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Expr::BinOp { left: Expr::Wildcard { .. }, op: TokenKind::Assign, right, .. } => {
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self.expr(right)?;
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Some(Value::VOID)
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}
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Expr::BinOp { left, pos, op: TokenKind::Assign, right } => {
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let dest = self.raw_expr(left)?;
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let mut value = self.expr_ctx(right, Ctx::default().with_ty(dest.ty))?;
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