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Cleanup and allow complex array length inference, e.g. "int[*][2][*] a = ..."

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This commit is contained in:
Christoffer Lerno
2023-02-28 17:37:17 +01:00
parent cc19168c7b
commit 9db845903e
9 changed files with 289 additions and 68 deletions
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19
src/compiler/compiler_internal.h
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@@ -2080,7 +2080,7 @@ bool cast_explicit(SemaContext *context, Expr *expr, Type *to_type);
bool cast(Expr *expr, Type *to_type);
bool cast_may_bool_convert(Type *type);
Type *cast_infer_len(Type *to_infer, Type *actual_type);
Type *type_infer_len_from_actual_type(Type *to_infer, Type *actual_type);
bool cast_to_index(Expr *index);
bool cast_untyped_to_type(SemaContext *context, Expr *expr, Type *to_type);
@@ -2396,7 +2396,7 @@ INLINE bool type_is_integer_unsigned(Type *type);
INLINE bool type_is_integer_signed(Type *type);
INLINE bool type_is_integer_or_bool_kind(Type *type);
INLINE bool type_is_numeric(Type *type);
INLINE bool type_is_len_inferred(Type *type);
INLINE bool type_is_inferred(Type *type);
INLINE bool type_underlying_is_numeric(Type *type);
INLINE bool type_is_pointer(Type *type);
INLINE bool type_is_arraylike(Type *type);
@@ -2475,12 +2475,20 @@ INLINE Type *type_from_inferred(Type *flattened, Type *element_type, unsigned co
{
switch (flattened->type_kind)
{
case TYPE_POINTER:
assert(count == 0);
return type_get_ptr(element_type);
case TYPE_VECTOR:
assert(flattened->array.len == count);
FALLTHROUGH;
case TYPE_INFERRED_VECTOR:
return type_get_vector(element_type, count);
break;
case TYPE_ARRAY:
assert(flattened->array.len == count);
FALLTHROUGH;
case TYPE_INFERRED_ARRAY:
return type_get_array(element_type, count);
break;
default:
UNREACHABLE
}
@@ -2496,6 +2504,9 @@ INLINE bool type_len_is_inferred(Type *type)
case TYPE_TYPEDEF:
type = type->canonical;
continue;
case TYPE_OPTIONAL:
type = type->optional;
continue;
case TYPE_ARRAY:
case TYPE_SUBARRAY:
case TYPE_FLEXIBLE_ARRAY:
@@ -2833,7 +2844,7 @@ INLINE bool type_is_func_ptr(Type *fn_type)
return fn_type->pointer->type_kind == TYPE_FUNC;
}
INLINE bool type_is_len_inferred(Type *type)
INLINE bool type_is_inferred(Type *type)
{
TypeKind kind = type->type_kind;
return kind == TYPE_INFERRED_VECTOR || kind == TYPE_INFERRED_ARRAY;