Cleanup attribute handling

This commit is contained in:
gingerBill
2017-11-04 10:26:56 +00:00
parent 6bc5584add
commit e6c99cd289
3 changed files with 167 additions and 263 deletions

View File

@@ -478,85 +478,15 @@ void check_proc_decl(Checker *c, Entity *e, DeclInfo *d) {
bool is_export = e->Procedure.is_export;
bool is_require_results = (pl->tags & ProcTag_require_results) != 0;
String link_name = {};
String link_prefix = e->Procedure.link_prefix;
bool link_prefix_overridden = false;
AttributeContext ac = {};
ac.link_prefix = e->Procedure.link_prefix;
if (d != nullptr && d->attributes.count > 0) {
StringSet set = {};
string_set_init(&set, heap_allocator());
defer (string_set_destroy(&set));
for_array(i, d->attributes) {
AstNode *attr = d->attributes[i];
if (attr->kind != AstNode_Attribute) continue;
for_array(j, attr->Attribute.elems) {
AstNode *elem = attr->Attribute.elems[j];
String name = {};
AstNode *value = nullptr;
switch (elem->kind) {
case_ast_node(i, Ident, elem);
name = i->token.string;
case_end;
case_ast_node(fv, FieldValue, elem);
GB_ASSERT(fv->field->kind == AstNode_Ident);
name = fv->field->Ident.token.string;
value = fv->value;
case_end;
default:
error(elem, "Invalid attribute element");
continue;
}
ExactValue ev = {};
if (value != nullptr) {
Operand op = {};
check_expr(c, &op, value);
if (op.mode != Addressing_Constant) {
error(value, "An attribute element must be constant");
} else {
ev = op.value;
}
}
if (string_set_exists(&set, name)) {
error(elem, "Previous declaration of `%.*s`", LIT(name));
} else {
string_set_add(&set, name);
}
if (name == "link_name") {
if (ev.kind == ExactValue_String) {
link_name = ev.value_string;
if (!is_foreign_name_valid(link_name)) {
error(elem, "Invalid link name: %.*s", LIT(link_name));
}
} else {
error(elem, "Expected a string value for `%.*s`", LIT(name));
}
} else if (name == "link_prefix") {
if (ev.kind == ExactValue_String) {
if (link_prefix.len > 0) {
link_prefix_overridden = true;
}
link_prefix = ev.value_string;
if (!is_foreign_name_valid(link_prefix)) {
error(elem, "Invalid link prefix: %.*s", LIT(link_prefix));
}
} else {
error(elem, "Expected a string value for `%.*s`", LIT(name));
}
} else {
error(elem, "Unknown attribute element name `%.*s`", LIT(name));
}
}
}
if (d != nullptr) {
check_decl_attributes(c, d->attributes, proc_decl_attribute, &ac);
}
link_name = handle_link_name(c, e->token, link_name, link_prefix, link_prefix_overridden);
ac.link_name = handle_link_name(c, e->token, ac.link_name, ac.link_prefix, ac.link_prefix_overridden);
if (d->scope->file != nullptr && e->token.string == "main") {
if (pt->param_count != 0 ||
@@ -626,8 +556,8 @@ void check_proc_decl(Checker *c, Entity *e, DeclInfo *d) {
if (is_foreign) {
String name = e->token.string;
if (link_name.len > 0) {
name = link_name;
if (ac.link_name.len > 0) {
name = ac.link_name;
}
e->Procedure.is_foreign = true;
e->Procedure.link_name = name;
@@ -662,11 +592,11 @@ void check_proc_decl(Checker *c, Entity *e, DeclInfo *d) {
}
} else {
String name = e->token.string;
if (link_name.len > 0) {
name = link_name;
if (ac.link_name.len > 0) {
name = ac.link_name;
}
if (link_name.len > 0 || is_export) {
if (ac.link_name.len > 0 || is_export) {
auto *fp = &c->info.foreigns;
e->Procedure.link_name = name;
@@ -700,105 +630,17 @@ void check_var_decl(Checker *c, Entity *e, Entity **entities, isize entity_count
}
e->flags |= EntityFlag_Visited;
String link_prefix = e->Variable.link_prefix;
String link_name = {};
bool link_prefix_overridden = false;
AttributeContext ac = {};
ac.entity = e;
ac.link_prefix = e->Variable.link_prefix;
ac.init_expr_list_count = init_expr_list.count;
DeclInfo *decl = decl_info_of_entity(&c->info, e);
if (decl != nullptr && decl->attributes.count > 0) {
StringSet set = {};
string_set_init(&set, heap_allocator());
defer (string_set_destroy(&set));
for_array(i, decl->attributes) {
AstNode *attr = decl->attributes[i];
if (attr->kind != AstNode_Attribute) continue;
for_array(j, attr->Attribute.elems) {
AstNode *elem = attr->Attribute.elems[j];
String name = {};
AstNode *value = nullptr;
switch (elem->kind) {
case_ast_node(i, Ident, elem);
name = i->token.string;
case_end;
case_ast_node(fv, FieldValue, elem);
GB_ASSERT(fv->field->kind == AstNode_Ident);
name = fv->field->Ident.token.string;
value = fv->value;
case_end;
default:
error(elem, "Invalid attribute element");
continue;
}
ExactValue ev = {};
if (value != nullptr) {
Operand op = {};
check_expr(c, &op, value);
if (op.mode != Addressing_Constant) {
error(value, "An attribute element must be constant");
} else {
ev = op.value;
}
}
if (string_set_exists(&set, name)) {
error(elem, "Previous declaration of `%.*s`", LIT(name));
continue;
} else {
string_set_add(&set, name);
}
if (name == "link_name") {
if (ev.kind == ExactValue_String) {
link_name = ev.value_string;
if (!is_foreign_name_valid(link_name)) {
error(elem, "Invalid link name: %.*s", LIT(link_name));
}
} else {
error(elem, "Expected a string value for `%.*s`", LIT(name));
}
} else if (name == "thread_local") {
if (!e->scope->is_file) {
error(elem, "Only a variable at file scope can be thread local");
} else if (init_expr_list.count > 0) {
error(elem, "A thread local variable declaration cannot have initialization values");
} else if (ev.kind == ExactValue_Invalid) {
e->Variable.thread_local_model = str_lit("default");
} else if (ev.kind == ExactValue_String) {
String model = ev.value_string;
if (model == "localdynamic" ||
model == "initialexec" ||
model == "localexec") {
e->Variable.thread_local_model = model;
} else {
error(elem, "Invalid thread local model `%.*s`", LIT(model));
}
} else {
error(elem, "Expected either no value or a string for `%.*s`", LIT(name));
}
} else if (name == "link_prefix") {
if (ev.kind == ExactValue_String) {
if (link_prefix.len > 0) {
link_prefix_overridden = true;
}
link_prefix = ev.value_string;
if (!is_foreign_name_valid(link_prefix)) {
error(elem, "Invalid link prefix: %.*s", LIT(link_prefix));
}
} else {
error(elem, "Expected a string value for `%.*s`", LIT(name));
}
} else {
error(elem, "Unknown attribute element name `%.*s`", LIT(name));
}
}
}
if (decl != nullptr) {
check_decl_attributes(c, decl->attributes, var_decl_attribute, &ac);
}
link_name = handle_link_name(c, e->token, link_name, link_prefix, link_prefix_overridden);
ac.link_name = handle_link_name(c, e->token, ac.link_name, ac.link_prefix, ac.link_prefix_overridden);
String context_name = str_lit("variable declaration");
@@ -827,14 +669,14 @@ void check_var_decl(Checker *c, Entity *e, Entity **entities, isize entity_count
}
init_entity_foreign_library(c, e);
}
if (link_name.len > 0) {
e->Variable.link_name = link_name;
if (ac.link_name.len > 0) {
e->Variable.link_name = ac.link_name;
}
if (e->Variable.is_foreign || e->Variable.is_export) {
String name = e->token.string;
if (link_name.len > 0) {
name = link_name;
if (e->Variable.link_name.len > 0) {
name = e->Variable.link_name;
}
auto *fp = &c->info.foreigns;
HashKey key = hash_string(name);