ed/raddebugger
1
0
Fork 0
mirror of https://github.com/Ed94/raddebugger.git synced 2026-07-19 23:16:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

switch cast expressions from being formally represented in the expression tree - instead use cast-like tree shapes to perform casts in the ir/typechecking phase. this is odd, given C's casting syntax, but it is much more natural given that the parser is not any longer doing identifier resolution, and as such it fixes a bunch of nasty edge cases.

Browse Source
This commit is contained in:
Ryan Fleury
2025-04-28 11:50:23 -07:00
parent 81425e8b90
commit c62ad20a9a
13 changed files with 325 additions and 130 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/eval/eval_parse.c
+23 -1
View File
@@ -672,6 +672,10 @@ e_type_key_from_expr(E_Expr *expr)
{
// TODO(rjf): do we support E_ExprKind_Func here?
default:{}break;
case E_ExprKind_LeafIdentifier:
{
result = e_leaf_type_from_name(expr->string);
}break;
case E_ExprKind_TypeIdent:
{
result = expr->type_key;
@@ -867,6 +871,13 @@ e_push_parse_from_string_tokens__prec(Arena *arena, String8 text, E_TokenArray t
}
}
// rjf: try 'unsigned' marker
if(str8_match(token_string, str8_lit("unsigned"), 0))
{
prefix_unary_kind = E_ExprKind_Unsigned;
prefix_unary_precedence = 2;
}
// rjf: consume valid op
if(prefix_unary_precedence != 0)
{
@@ -875,6 +886,7 @@ e_push_parse_from_string_tokens__prec(Arena *arena, String8 text, E_TokenArray t
}
// rjf: try casting expression
#if 0
if(prefix_unary_precedence == 0 && str8_match(token_string, str8_lit("("), 0))
{
E_Token some_type_identifier_maybe = e_token_at_it(it+1, &tokens);
@@ -915,6 +927,7 @@ e_push_parse_from_string_tokens__prec(Arena *arena, String8 text, E_TokenArray t
}
}
}
#endif
// rjf: break if we got no operators
if(prefix_unary_precedence == 0)
@@ -1341,7 +1354,16 @@ e_push_parse_from_string_tokens__prec(Arena *arena, String8 text, E_TokenArray t
e_msg_list_concat_in_place(&result.msgs, &rhs_expr_parse.msgs);
E_Expr *rhs = rhs_expr_parse.expr;
it = rhs_expr_parse.last_token;
if(rhs == &e_expr_nil)
if(rhs == &e_expr_nil && binary_kind == E_ExprKind_Mul)
{
// NOTE(rjf): C-style pointer syntax is shared with multiplication.
// carving out a special case here to allow "unfinished *s" to be
// treated as pointers instead.
E_Expr *ptee = atom;
atom = e_push_expr(arena, E_ExprKind_Ptr, token_string.str);
e_expr_push_child(atom, ptee);
}
else if(rhs == &e_expr_nil)
{
e_msgf(arena, &result.msgs, E_MsgKind_MalformedInput, token_string.str, "Missing right-hand-side of `%S`.", token_string);
}