Begin work in procedure calls

This commit is contained in:
gingerBill
2023-06-19 13:56:00 +01:00
parent 2992ca5df1
commit 427f212170

View File

@@ -5976,11 +5976,17 @@ gb_internal CallArgumentData check_call_arguments_single_procedure(CheckerContex
CallArgumentData data = {};
data.result_type = t_invalid;
GB_ASSERT(operand->mode != Addressing_ProcGroup);
proc_type = base_type(operand->type);
if (operand->mode == Addressing_ProcGroup) {
Array<Entity *> procs = proc_group_entities(c, *operand);
if (procs.count == 1) {
proc_type = base_type(procs[0]->type);
} else {
error(call, "Procedure groups >1 not yet supported");
return data;
}
}
if (proc_type == nullptr || proc_type->kind != Type_Proc) {
gbString s = type_to_string(proc_type);
error(call, "Expected a procedure to call, got %s", s);
@@ -5989,12 +5995,15 @@ gb_internal CallArgumentData check_call_arguments_single_procedure(CheckerContex
return data;
}
if (is_type_polymorphic(proc_type)) {
if (proc_type != nullptr && is_type_polymorphic(proc_type)) {
error(call, "Polymorphic procedures not yet supported");
return data;
}
TypeProc *pt = &proc_type->Proc;
TypeProc *pt = nullptr;
if (proc_type) {
pt = &proc_type->Proc;
}
TEMPORARY_ALLOCATOR_GUARD();
ast_node(ce, CallExpr, call);
@@ -6015,21 +6024,31 @@ gb_internal CallArgumentData check_call_arguments_single_procedure(CheckerContex
auto positional_operands = array_make<Operand>(heap_allocator(), 0, positional_args.count);
auto variadic_operands = array_make<Operand>(heap_allocator(), 0, 0);
auto named_operands = array_make<Operand>(heap_allocator(), 0, 0);
defer (array_free(&positional_operands));
defer (array_free(&variadic_operands));
defer (array_free(&named_operands));
isize positional_operand_count = 0;
auto visited = slice_make<bool>(temporary_allocator(), pt->param_count);
Slice<bool> visited = {};
if (positional_args.count > 0) {
isize lhs_count = -1;
bool is_variadic = false;
Entity **lhs = populate_proc_parameter_list(c, proc_type, &lhs_count, &is_variadic);
Entity **lhs = nullptr;
if (proc_type != nullptr && is_type_proc(proc_type)) {
lhs = populate_proc_parameter_list(c, proc_type, &lhs_count, &is_variadic);
}
check_unpack_arguments(c, lhs, lhs_count, &positional_operands, positional_args, is_variadic ? UnpackFlag_IsVariadic : UnpackFlag_None);
}
positional_operand_count = positional_operands.count;
if (!is_variadic) {
if (proc_type != nullptr) {
visited = slice_make<bool>(temporary_allocator(), pt->param_count);
if (!pt->variadic) {
if (pt->param_count < positional_operands.count) {
char const *err_fmt = "Too many arguments for '%s', expected a maximum of %td arguments, got %td";
gbString c = expr_to_string(ce->proc);
@@ -6037,27 +6056,24 @@ gb_internal CallArgumentData check_call_arguments_single_procedure(CheckerContex
gb_string_free(c);
return data;
}
}
positional_operand_count = positional_operands.count;
} else {
// only state it is visited if it was set later on
visited[pt->variadic_index] = positional_operand_count > pt->variadic_index;
for (Operand const &o : positional_operands) {
check_no_copy_assignment(o, str_lit("procedure call expression"));
}
positional_operand_count = gb_min(pt->param_count, positional_operands.count);
if (is_variadic) {
positional_operand_count = gb_min(pt->variadic_index, positional_operand_count);
}
for (isize i = 0; i < positional_operand_count; i++) {
visited[i] = true;
}
if (is_variadic) {
visited[pt->variadic_index] = true;
}
for (isize i = positional_operand_count; i < positional_operands.count; i++) {
array_add(&variadic_operands, positional_operands[i]);
}
array_resize(&positional_operands, positional_operand_count);
if (vari_expand) {
if (variadic_operands.count > 1) {
error(variadic_operands[1].expr, "Unexpected position arguments after variadic expansion with '..'");
@@ -6065,119 +6081,214 @@ gb_internal CallArgumentData check_call_arguments_single_procedure(CheckerContex
}
}
array_resize(&positional_operands, positional_operand_count);
}
isize param_count = 0;
isize param_count_excluding_defaults = get_procedure_param_count_excluding_defaults(proc_type, &param_count);
isize param_count = 0;
isize param_count_excluding_defaults = get_procedure_param_count_excluding_defaults(proc_type, &param_count);
if (named_args.count == 0 && positional_operand_count < param_count_excluding_defaults) {
char const *err_fmt = "Too few arguments for '%s', expected a minimum of %td arguments, got %td";
gbString c = expr_to_string(ce->proc);
error(call, err_fmt, c, param_count_excluding_defaults, positional_operands.count);
gb_string_free(c);
return data;
}
for_array(i, positional_operands) {
Operand &o = positional_operands[i];
isize param_index = i;
Entity *e = pt->params->Tuple.variables[param_index];
GB_ASSERT(e->kind == Entity_Variable);
check_assignment(c, &o, e->type, str_lit("procedure call expression"));
}
if (pt->variadic) {
isize param_index = pt->variadic_index;
Entity *e = pt->params->Tuple.variables[param_index];
GB_ASSERT(e->kind == Entity_Variable);
GB_ASSERT(e->flags & EntityFlag_Ellipsis);
GB_ASSERT(is_type_slice(e->type));
if (vari_expand) {
if (variadic_operands.count != 0) {
GB_ASSERT(variadic_operands.count == 1);
check_assignment(c, &variadic_operands[0], e->type, str_lit("procedure call expression"));
}
} else {
Type *elem = e->type->Slice.elem;
for (Operand &o : variadic_operands) {
check_assignment(c, &o, elem, str_lit("procedure call expression"));
}
}
}
array_resize(&positional_operands, pt->param_count);
for_array(i, named_args) {
Ast *arg = named_args[i];
if (arg->kind != Ast_FieldValue) {
error(arg, "Expected a 'field = value'");
if (named_args.count == 0 && positional_operands.count < param_count_excluding_defaults) {
char const *err_fmt = "Too few arguments for '%s', expected a minimum of %td arguments, got %td";
gbString c = expr_to_string(ce->proc);
error(call, err_fmt, c, param_count_excluding_defaults, positional_operands.count);
gb_string_free(c);
return data;
}
ast_node(fv, FieldValue, arg);
if (fv->field->kind != Ast_Ident) {
gbString expr_str = expr_to_string(fv->field);
error(arg, "Invalid parameter name '%s' in procedure call", expr_str);
any_failure = true;
gb_string_free(expr_str);
continue;
}
String name = fv->field->Ident.token.string;
isize param_index = lookup_procedure_parameter(pt, name);
if (param_index < 0) {
error(arg, "No parameter named '%.*s' for this procedure type", LIT(name));
any_failure = true;
continue;
for_array(i, positional_operands) {
Operand &o = positional_operands[i];
isize param_index = i;
Entity *e = pt->params->Tuple.variables[param_index];
GB_ASSERT(e->kind == Entity_Variable);
check_assignment(c, &o, e->type, str_lit("procedure call expression"));
}
bool prev_visited = visited[param_index];
visited[param_index] = true;
if (pt->variadic) {
isize param_index = pt->variadic_index;
if (prev_visited) {
error(arg, "Duplicate parameter named '%.*s' in procedure call", LIT(name));
Entity *e = pt->params->Tuple.variables[param_index];
GB_ASSERT(e->kind == Entity_Variable);
GB_ASSERT(e->flags & EntityFlag_Ellipsis);
GB_ASSERT(is_type_slice(e->type));
if (vari_expand) {
if (variadic_operands.count != 0) {
GB_ASSERT(variadic_operands.count == 1);
check_assignment(c, &variadic_operands[0], e->type, str_lit("procedure call expression"));
}
} else {
Type *elem = e->type->Slice.elem;
for (Operand &o : variadic_operands) {
check_assignment(c, &o, elem, str_lit("procedure call expression"));
}
}
}
Entity *e = pt->params->Tuple.variables[param_index];
GB_ASSERT(e->kind == Entity_Variable);
array_resize(&positional_operands, pt->param_count);
Operand o = {};
check_expr_with_type_hint(c, &o, fv->value, e->type);
if (o.mode == Addressing_Invalid) {
any_failure = true;
}
check_assignment(c, &o, e->type, str_lit("procedure call expression"));
check_no_copy_assignment(o, str_lit("procedure call expression"));
if (!prev_visited) {
positional_operands[param_index] = o;
}
}
for_array(i, visited) {
if (!visited[i]) {
if (pt->variadic && i == pt->variadic_index) {
visited[i] = true;
if (named_args.count > 0) {
struct NamedParameter {
String key;
Ast * value;
};
auto named_parameters = array_make<NamedParameter>(heap_allocator(), 0, named_args.count);
defer (array_free(&named_parameters));
for_array(i, named_args) {
Ast *arg = named_args[i];
if (arg->kind != Ast_FieldValue) {
error(arg, "Expected a 'field = value'");
return data;
}
ast_node(fv, FieldValue, arg);
if (fv->field->kind != Ast_Ident) {
gbString expr_str = expr_to_string(fv->field);
error(arg, "Invalid parameter name '%s' in procedure call", expr_str);
any_failure = true;
gb_string_free(expr_str);
continue;
}
String name = fv->field->Ident.token.string;
array_add(&named_parameters, NamedParameter{name, fv->value});
}
StringMap<Type *> type_hint_map = {}; // Key: String
string_map_init(&type_hint_map, 2*named_args.count);
defer (string_map_destroy(&type_hint_map));
if (proc_type != nullptr) {
TypeTuple *param_tuple = &pt->params->Tuple;
for (Entity *e : param_tuple->variables) {
if (is_blank_ident(e->token)) {
continue;
}
string_map_set(&type_hint_map, e->token.string, e->type);
}
} else if (operand->mode == Addressing_ProcGroup) {
Array<Entity *> procs = proc_group_entities(c, *operand);
for (Entity *proc : procs) {
Type *proc_type = base_type(proc->type);
if (is_type_proc(proc_type)) {
TypeProc *pt = &proc_type->Proc;
TypeTuple *param_tuple = nullptr;
if (pt->params != nullptr) {
param_tuple = &pt->params->Tuple;
}
if (param_tuple == nullptr) {
continue;
}
for (Entity *e : param_tuple->variables) {
if (is_blank_ident(e->token)) {
continue;
}
StringHashKey key = string_hash_string(e->token.string);
Type **found = string_map_get(&type_hint_map, key);
if (found) {
Type *t = *found;
if (t == nullptr) {
// NOTE(bill): Ambiguous named parameter across all types
continue;
}
if (are_types_identical(t, e->type)) {
// NOTE(bill): No need to set again
} else {
// NOTE(bill): Ambiguous named parameter across all types so set it to a nullptr
string_map_set(&type_hint_map, key, cast(Type *)nullptr);
}
} else {
string_map_set(&type_hint_map, key, e->type);
}
}
}
}
}
for (NamedParameter &param : named_parameters) {
Type *type_hint = nullptr;
if (Type **found = string_map_get(&type_hint_map, param.key)) {
type_hint = *found;
}
Operand operand = {};
check_expr_or_type(c, &operand, param.value, type_hint);
array_add(&named_operands, operand);
}
for (NamedParameter const &param : named_parameters) {
isize param_index = lookup_procedure_parameter(pt, param.key);
if (param_index < 0) {
error(param.value, "No parameter named '%.*s' for this procedure type", LIT(param.key));
any_failure = true;
continue;
}
Entity *e = pt->params->Tuple.variables[i];
if (e->kind == Entity_Variable) {
if (has_parameter_value(e->Variable.param_value)) {
bool prev_visited = visited[param_index];
visited[param_index] = true;
if (prev_visited) {
error(param.value, "Duplicate parameter named '%.*s' in procedure call", LIT(param.key));
}
Entity *e = pt->params->Tuple.variables[param_index];
GB_ASSERT(e->kind == Entity_Variable);
Operand o = {};
check_expr_with_type_hint(c, &o, param.value, e->type);
if (o.mode == Addressing_Invalid) {
any_failure = true;
}
check_assignment(c, &o, e->type, str_lit("procedure call expression"));
if (!prev_visited) {
positional_operands[param_index] = o;
}
}
}
if (proc_type != nullptr) {
if (pt->variadic) {
visited[pt->variadic_index] = true;
}
for_array(i, visited) {
if (!visited[i]) {
if (pt->variadic && i == pt->variadic_index) {
visited[i] = true;
continue;
}
Entity *e = pt->params->Tuple.variables[i];
if (e->kind == Entity_Variable) {
if (has_parameter_value(e->Variable.param_value)) {
visited[i] = true;
continue;
}
}
gbString t = type_to_string(e->type);
error(call, "Missing parameter of type '%s' at index %td", t, i);
gb_string_free(t);
}
gbString t = type_to_string(e->type);
error(call, "Missing parameter of type '%s' at index %td", t, i);
gb_string_free(t);
}
}
for (Operand const &o : positional_operands) {
check_no_copy_assignment(o, str_lit("procedure call expression"));
}
for (Operand const &o : variadic_operands) {
check_no_copy_assignment(o, str_lit("procedure call expression"));
}
for (Operand const &o : named_operands) {
check_no_copy_assignment(o, str_lit("procedure call expression"));
}
if (any_failure) {
return data;
}
@@ -6189,7 +6300,9 @@ gb_internal CallArgumentData check_call_arguments_single_procedure(CheckerContex
ce->ordered_args = ordered_args;
data.result_type = pt->results;
if (proc_type != nullptr) {
data.result_type = pt->results;
}
return data;
#if 0
@@ -6274,8 +6387,6 @@ gb_internal CallArgumentData check_call_arguments_single_procedure(CheckerContex
return data;
}
error(call, "TODO: Implement check_call_arguments_single_procedure for %s", type_to_string(proc_type));
Array<Operand> operands = {};
defer (array_free(&operands));
@@ -6318,6 +6429,20 @@ gb_internal CallArgumentData check_call_arguments_single_procedure(CheckerContex
gb_internal CallArgumentData check_call_arguments(CheckerContext *c, Operand *operand, Ast *call) {
if (operand->mode == Addressing_ProcGroup) {
Array<Entity *> procs = proc_group_entities(c, *operand);
bool all_non_poly = true;
for (Entity *e : procs) {
if (is_type_polymorphic(e->type)) {
all_non_poly = false;
break;
}
}
if (all_non_poly && (procs.count == 1 || c->pkg->name == "bug")) {
return check_call_arguments_single_procedure(c, operand, call);
}
}
if (operand->mode != Addressing_ProcGroup && is_type_proc(operand->type) && !is_type_polymorphic(operand->type)) {
return check_call_arguments_single_procedure(c, operand, call);
}
@@ -7389,11 +7514,7 @@ gb_internal ExprKind check_call_expr(CheckerContext *c, Operand *operand, Ast *c
return builtin_procs[id].kind;
}
if (operand->mode == Addressing_ProcGroup) {
CHECK_CALL_PARAMETER_MIXTURE_OR_RETURN("procedure group call");
} else {
CHECK_CALL_PARAMETER_MIXTURE_OR_RETURN("procedure call", true);
}
CHECK_CALL_PARAMETER_MIXTURE_OR_RETURN(operand->mode == Addressing_ProcGroup ? "procedure group call": "procedure call", true);
Entity *initial_entity = entity_of_node(operand->expr);