diff options
Diffstat (limited to 'types.c')
| -rw-r--r-- | types.c | 35 |
1 files changed, 20 insertions, 15 deletions
@@ -40,6 +40,7 @@ static bool type_eq(Type *a, Type *b) { switch (a->kind) { case TYPE_VOID: return true; case TYPE_UNKNOWN: assert(0); return false; + case TYPE_TYPE: return true; case TYPE_BUILTIN: return a->builtin == b->builtin; case TYPE_FN: { @@ -98,10 +99,6 @@ static bool expr_arr_must_mut(Expression *e) { err_print(e->where, "Cannot modify a constant array."); return false; } - if (d->flags & DECL_FLAG_PARAM) { - err_print(e->where, "Parameters are immutable."); - return false; - } } return true; case EXPR_CAST: case EXPR_CALL: @@ -134,6 +131,7 @@ static bool expr_arr_must_mut(Expression *e) { case EXPR_LITERAL_INT: case EXPR_BINARY_OP: case EXPR_DIRECT: + case EXPR_TYPE: break; } assert(0); @@ -186,7 +184,8 @@ static bool expr_must_lval(Expression *e) { case EXPR_CALL: case EXPR_DIRECT: case EXPR_BLOCK: - case EXPR_SLICE: { + case EXPR_SLICE: + case EXPR_TYPE: { err_print(e->where, "Cannot use %s as l-value.", expr_kind_to_str(e->kind)); return false; } @@ -353,6 +352,7 @@ static bool type_resolve(Typer *tr, Type *t) { break; case TYPE_UNKNOWN: case TYPE_VOID: + case TYPE_TYPE: case TYPE_BUILTIN: break; } @@ -363,19 +363,14 @@ static bool type_resolve(Typer *tr, Type *t) { static bool type_can_be_truthy(Type *t) { switch (t->kind) { case TYPE_VOID: - return false; - case TYPE_UNKNOWN: - return true; - case TYPE_BUILTIN: - return true; - case TYPE_FN: - return true; case TYPE_TUPLE: - return false; case TYPE_ARR: + case TYPE_TYPE: return false; + case TYPE_FN: + case TYPE_UNKNOWN: + case TYPE_BUILTIN: case TYPE_PTR: - return true; case TYPE_SLICE: return true; } @@ -394,7 +389,9 @@ static Status type_cast_status(Type *from, Type *to) { return STATUS_NONE; switch (from->kind) { case TYPE_UNKNOWN: return STATUS_NONE; - case TYPE_VOID: return STATUS_ERR; + case TYPE_TYPE: + case TYPE_VOID: + return STATUS_ERR; case TYPE_BUILTIN: switch (from->builtin) { case BUILTIN_I8: @@ -412,6 +409,7 @@ static Status type_cast_status(Type *from, Type *to) { case TYPE_PTR: return STATUS_WARN; case TYPE_FN: + case TYPE_TYPE: case TYPE_TUPLE: case TYPE_SLICE: case TYPE_ARR: @@ -917,6 +915,10 @@ static bool types_expr(Typer *tr, Expression *e) { bool valid = false; if (o == BINARY_SET) { valid = type_eq(lhs_type, rhs_type); + if (lhs_type->kind == TYPE_TYPE) { + err_print(e->where, "Cannot set type."); + return false; + } } else { /* numerical binary ops */ if (lhs_type->kind == rhs_type->kind && lhs_type->kind == TYPE_BUILTIN @@ -1047,6 +1049,9 @@ static bool types_expr(Typer *tr, Expression *e) { } break; } + case EXPR_TYPE: + t->kind = TYPE_TYPE; + break; } e->type.flags |= TYPE_FLAG_RESOLVED; return true; |