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Extension methods added. Some initial work on virtual.

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This commit is contained in:
Christoffer Lerno
2021-07-21 19:28:02 +02:00
parent 46e39f883c
commit 198e3c369c
16 changed files with 339 additions and 52 deletions
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113
src/compiler/sema_decls.c
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@@ -602,7 +602,67 @@ static inline bool sema_analyse_enum(Context *context, Decl *decl)
return success;
}
static inline const char *name_by_decl(Decl *method_like)
{
switch (method_like->decl_kind)
{
case DECL_MACRO:
return "macro method";
case DECL_FUNC:
return "method";
case DECL_GENFUNC:
return "generic method";
default:
UNREACHABLE
}
}
static inline bool sema_add_method_like(Context *context, Type *parent_type, Decl *method_like)
{
assert(parent_type->canonical == parent_type);
Decl *parent = parent_type->decl;
const char *name = method_like->name;
Decl *method = sema_find_extension_method_in_module(context->module, parent_type, name);
if (method)
{
SEMA_TOKID_ERROR(method_like->name_token, "This %s is already defined in this module.", name_by_decl(method_like));
SEMA_TOKID_PREV(method->name_token, "The previous definition was here.");
return false;
}
Decl *ambiguous = NULL;
Decl *private = NULL;
method = sema_resolve_method(context, parent, name, &ambiguous, &private);
if (method)
{
SEMA_TOKID_ERROR(method_like->name_token, "This %s is already defined for '%s'.", name_by_decl(method_like), parent_type->name);
SEMA_TOKID_PREV(method->name_token, "The previous definition was here.");
return false;
}
scratch_buffer_clear();
if (method_like->visibility <= VISIBLE_MODULE)
{
scratch_buffer_append(parent->name);
scratch_buffer_append_char('.');
scratch_buffer_append(method_like->name);
}
else
{
scratch_buffer_append(parent->external_name);
scratch_buffer_append("__");
scratch_buffer_append(method_like->name);
}
method_like->external_name = scratch_buffer_interned();
DEBUG_LOG("Method-like '%s.%s' analysed.", parent->name, method_like->name);
if (parent->module == context->module)
{
vec_add(parent->methods, method_like);
}
else
{
vec_add(context->module->method_extensions, method_like);
}
return true;
}
static inline bool sema_analyse_method(Context *context, Decl *decl)
{
@@ -611,39 +671,12 @@ static inline bool sema_analyse_method(Context *context, Decl *decl)
if (!type_may_have_sub_elements(parent_type->type))
{
SEMA_ERROR(decl,
"Methods can not be associated with '%s'",
type_to_error_string(decl->func_decl.type_parent->type));
"Methods can not be associated with '%s'",
type_to_error_string(decl->func_decl.type_parent->type));
return false;
}
Decl *parent = parent_type->type->decl;
VECEACH(parent->methods, i)
{
Decl *function = parent->methods[i];
if (function->name == decl->name)
{
SEMA_ERROR(decl, "Duplicate name '%s' for method.", function->name);
SEMA_PREV(function, "Previous definition here.");
return false;
}
}
scratch_buffer_clear();
if (decl->visibility <= VISIBLE_MODULE)
{
scratch_buffer_append(parent->name);
scratch_buffer_append_char('.');
scratch_buffer_append(decl->name);
}
else
{
scratch_buffer_append(parent->external_name);
scratch_buffer_append("__");
scratch_buffer_append(decl->name);
}
decl->external_name = scratch_buffer_interned();
DEBUG_LOG("Method '%s.%s' analysed.", parent->name, decl->name);
vec_add(parent->methods, decl);
return true;
Type *type = parent_type->type->canonical;
return sema_add_method_like(context, type, decl);
}
static inline AttributeType attribute_by_name(Attr *attr)
@@ -971,21 +1004,7 @@ static bool sema_analyse_macro_method(Context *context, Decl *decl)
SEMA_ERROR(first_param, "The first parameter must be a regular value parameter.");
return false;
}
Decl *parent = parent_type->decl;
VECEACH(parent->methods, i)
{
Decl *function = parent->methods[i];
if (function->name == decl->name)
{
SEMA_ERROR(decl, "Duplicate name '%s' for macro method.", function->name);
SEMA_PREV(function, "Previous definition here.");
return false;
}
}
DEBUG_LOG("Macro method '%s.%s' analysed.", parent->name, decl->name);
vec_add(parent->methods, decl);
return true;
return sema_add_method_like(context, parent_type, decl);
}
static inline bool sema_analyse_macro(Context *context, Decl *decl)
@@ -1439,6 +1458,8 @@ bool sema_analyse_decl(Context *context, Decl *decl)
case DECL_FUNC:
if (!sema_analyse_func(context, decl)) return decl_poison(decl);
break;
case DECL_GENFUNC:
TODO
case DECL_MACRO:
if (!sema_analyse_macro(context, decl)) return decl_poison(decl);
break;