Generic procedures generate types on use

This commit is contained in:
Ginger Bill
2017-06-25 19:41:07 +01:00
parent c4081393c1
commit 15dbea6899
6 changed files with 247 additions and 171 deletions

View File

@@ -2,7 +2,15 @@ import (
"fmt.odin";
)
proc new_type(T: type) -> ^T {
return ^T(alloc_align(size_of(T), align_of(T)));
}
proc main() {
var ptr = new_type(int);
}
/*
let program = "+ + * - /";
var accumulator = 0;
@@ -18,4 +26,5 @@ proc main() {
fmt.printf("The program \"%s\" calculates the value %d\n",
program, accumulator);
*/
}

View File

@@ -1030,7 +1030,7 @@ void check_bit_field_type(Checker *c, Type *bit_field_type, Type *named_type, As
Type *check_get_params(Checker *c, Scope *scope, AstNode *_params, bool *is_variadic_) {
Type *check_get_params(Checker *c, Scope *scope, AstNode *_params, bool *is_variadic_, Array<Operand> *operands) {
if (_params == NULL) {
return NULL;
}
@@ -1041,6 +1041,11 @@ Type *check_get_params(Checker *c, Scope *scope, AstNode *_params, bool *is_vari
return NULL;
}
if (operands != NULL) {
GB_ASSERT(operands->count == params.count);
}
isize variable_count = 0;
for_array(i, params) {
AstNode *field = params[i];
@@ -1096,32 +1101,45 @@ Type *check_get_params(Checker *c, Scope *scope, AstNode *_params, bool *is_vari
}
}
if (type_expr->kind == AstNode_HelperType) {
type = make_type_generic(c->allocator, 0);
if (operands != NULL) {
Operand o = (*operands)[i];
if (o.mode == Addressing_Type) {
type = o.type;
} else {
error(o.expr, "Expected a type to assign to a type parameter");
}
} else {
type = make_type_generic(c->allocator, 0);
}
} else {
type = check_type(c, type_expr);
}
if (default_value != NULL) {
Operand o = {};
if (default_value->kind == AstNode_BasicDirective &&
default_value->BasicDirective.name == "caller_location") {
init_preload(c);
default_is_location = true;
o.type = t_source_code_location;
o.mode = Addressing_Value;
if (type_expr->kind == AstNode_HelperType) {
error(default_value, "A type parameter may not have a default value");
} else {
check_expr_with_type_hint(c, &o, default_value, type);
if (is_operand_nil(o)) {
default_is_nil = true;
} else if (o.mode != Addressing_Constant) {
error(default_value, "Default parameter must be a constant");
Operand o = {};
if (default_value->kind == AstNode_BasicDirective &&
default_value->BasicDirective.name == "caller_location") {
init_preload(c);
default_is_location = true;
o.type = t_source_code_location;
o.mode = Addressing_Value;
} else {
value = o.value;
}
}
check_expr_with_type_hint(c, &o, default_value, type);
check_is_assignable_to(c, &o, type);
if (is_operand_nil(o)) {
default_is_nil = true;
} else if (o.mode != Addressing_Constant) {
error(default_value, "Default parameter must be a constant");
} else {
value = o.value;
}
}
check_is_assignable_to(c, &o, type);
}
}
}
@@ -1154,7 +1172,13 @@ Type *check_get_params(Checker *c, Scope *scope, AstNode *_params, bool *is_vari
AstNode *name = p->names[j];
if (ast_node_expect(name, AstNode_Ident)) {
Entity *param = NULL;
if (type->kind == Type_Generic) {
bool is_generic = type->kind == Type_Generic;
if (operands != NULL) {
Operand o = (*operands)[j];
is_generic = o.mode == Addressing_Type && o.type == type;
}
if (is_generic) {
param = make_entity_type_name(c->allocator, scope, name->Ident, type);
} else {
param = make_entity_param(c->allocator, scope, name->Ident, type,
@@ -1497,11 +1521,12 @@ bool abi_compat_return_by_value(gbAllocator a, ProcCallingConvention cc, Type *a
return false;
}
void check_procedure_type(Checker *c, Type *type, AstNode *proc_type_node) {
// NOTE(bill): `operands` is for generating non generic procedure type
void check_procedure_type(Checker *c, Type *type, AstNode *proc_type_node, Array<Operand> *operands = NULL) {
ast_node(pt, ProcType, proc_type_node);
bool variadic = false;
Type *params = check_get_params(c, c->context.scope, pt->params, &variadic);
Type *params = check_get_params(c, c->context.scope, pt->params, &variadic, operands);
Type *results = check_get_results(c, c->context.scope, pt->results);
isize param_count = 0;
@@ -1509,6 +1534,7 @@ void check_procedure_type(Checker *c, Type *type, AstNode *proc_type_node) {
if (params) param_count = params ->Tuple.variable_count;
if (results) result_count = results->Tuple.variable_count;
type->Proc.node = proc_type_node;
type->Proc.scope = c->context.scope;
type->Proc.params = params;
type->Proc.param_count = param_count;
@@ -1541,14 +1567,19 @@ void check_procedure_type(Checker *c, Type *type, AstNode *proc_type_node) {
is_generic = true;
}
}
GB_ASSERT(type->Proc.is_generic == is_generic);
if (operands == NULL) {
GB_ASSERT(type->Proc.is_generic == is_generic);
}
type->Proc.abi_compat_params = gb_alloc_array(c->allocator, Type *, param_count);
for (isize i = 0; i < param_count; i++) {
Type *original_type = type->Proc.params->Tuple.variables[i]->type;
Type *new_type = type_to_abi_compat_param_type(c->allocator, original_type);
type->Proc.abi_compat_params[i] = new_type;
Entity *e = type->Proc.params->Tuple.variables[i];
if (e->kind == Entity_Variable) {
Type *original_type = e->type;
Type *new_type = type_to_abi_compat_param_type(c->allocator, original_type);
type->Proc.abi_compat_params[i] = new_type;
}
}
// NOTE(bill): The types are the same
@@ -4829,6 +4860,7 @@ bool check_builtin_procedure(Checker *c, Operand *operand, AstNode *call, i32 id
enum CallArgumentError {
CallArgumentError_None,
CallArgumentError_NoneProcedureType,
CallArgumentError_WrongTypes,
CallArgumentError_NonVariadicExpand,
CallArgumentError_VariadicTuple,
@@ -4902,23 +4934,28 @@ bool check_unpack_arguments(Checker *c, isize lhs_count, Array<Operand> *operand
return optional_ok;
}
#define CALL_ARGUMENT_CHECKER(name) CallArgumentError name(Checker *c, AstNode *call, Type *proc_type, Array<Operand> operands, CallArgumentErrorMode show_error_mode, i64 *score_)
#define CALL_ARGUMENT_CHECKER(name) CallArgumentError name(Checker *c, AstNode *call, Type *proc_type, Array<Operand> operands, CallArgumentErrorMode show_error_mode, i64 *score_, Type **result_type_)
typedef CALL_ARGUMENT_CHECKER(CallArgumentCheckerType);
CALL_ARGUMENT_CHECKER(check_call_arguments_internal) {
ast_node(ce, CallExpr, call);
GB_ASSERT(is_type_proc(proc_type));
proc_type = base_type(proc_type);
TypeProc *pt = &proc_type->Proc;
isize param_count = 0;
isize param_count_excluding_defaults = 0;
bool variadic = proc_type->Proc.variadic;
bool variadic = pt->variadic;
bool vari_expand = (ce->ellipsis.pos.line != 0);
i64 score = 0;
bool show_error = show_error_mode == CallArgumentMode_ShowErrors;
TypeTuple *param_tuple = NULL;
if (proc_type->Proc.params != NULL) {
param_tuple = &proc_type->Proc.params->Tuple;
if (pt->params != NULL) {
param_tuple = &pt->params->Tuple;
param_count = param_tuple->variable_count;
if (variadic) {
@@ -4945,120 +4982,126 @@ CALL_ARGUMENT_CHECKER(check_call_arguments_internal) {
}
}
CallArgumentError err = CallArgumentError_None;
Type *final_proc_type = proc_type;
if (vari_expand && !variadic) {
if (show_error) {
error(ce->ellipsis,
"Cannot use `..` in call to a non-variadic procedure: `%.*s`",
LIT(ce->proc->Ident.string));
}
if (score_) *score_ = score;
return CallArgumentError_NonVariadicExpand;
}
if (vari_expand && proc_type->Proc.c_vararg) {
err = CallArgumentError_NonVariadicExpand;
} else if (vari_expand && pt->c_vararg) {
if (show_error) {
error(ce->ellipsis,
"Cannot use `..` in call to a `#c_vararg` variadic procedure: `%.*s`",
LIT(ce->proc->Ident.string));
}
if (score_) *score_ = score;
return CallArgumentError_NonVariadicExpand;
}
if (operands.count == 0 && param_count_excluding_defaults == 0) {
if (score_) *score_ = score;
return CallArgumentError_None;
}
i32 error_code = 0;
if (operands.count < param_count_excluding_defaults) {
error_code = -1;
} else if (!variadic && operands.count > param_count) {
error_code = +1;
}
if (error_code != 0) {
CallArgumentError err = CallArgumentError_TooManyArguments;
char *err_fmt = "Too many arguments for `%s`, expected %td arguments";
if (error_code < 0) {
err = CallArgumentError_TooFewArguments;
err_fmt = "Too few arguments for `%s`, expected %td arguments";
err = CallArgumentError_NonVariadicExpand;
} else if (operands.count == 0 && param_count_excluding_defaults == 0) {
err = CallArgumentError_None;
} else {
i32 error_code = 0;
if (operands.count < param_count_excluding_defaults) {
error_code = -1;
} else if (!variadic && operands.count > param_count) {
error_code = +1;
}
if (show_error) {
gbString proc_str = expr_to_string(ce->proc);
error(call, err_fmt, proc_str, param_count_excluding_defaults);
gb_string_free(proc_str);
}
if (score_) *score_ = score;
return err;
}
CallArgumentError err = CallArgumentError_None;
GB_ASSERT(proc_type->Proc.params != NULL);
Entity **sig_params = param_tuple->variables;
isize operand_index = 0;
isize max_operand_count = gb_min(param_count, operands.count);
for (; operand_index < max_operand_count; operand_index++) {
Entity *e = sig_params[operand_index];
Type *t = e->type;
Operand o = operands[operand_index];
if (e->kind == Entity_TypeName) {
GB_ASSERT(proc_type->Proc.is_generic);
GB_ASSERT(!variadic);
if (o.mode == Addressing_Invalid) {
continue;
} else if (o.mode != Addressing_Type) {
error(o.expr, "Expected a type for the argument");
if (error_code != 0) {
err = CallArgumentError_TooManyArguments;
char *err_fmt = "Too many arguments for `%s`, expected %td arguments";
if (error_code < 0) {
err = CallArgumentError_TooFewArguments;
err_fmt = "Too few arguments for `%s`, expected %td arguments";
}
score += assign_score_function(1);
continue;
}
if (variadic) {
o = operands[operand_index];
}
i64 s = 0;
if (!check_is_assignable_to_with_score(c, &o, t, &s)) {
if (show_error) {
check_assignment(c, &o, t, str_lit("argument"));
gbString proc_str = expr_to_string(ce->proc);
error(call, err_fmt, proc_str, param_count_excluding_defaults);
gb_string_free(proc_str);
}
err = CallArgumentError_WrongTypes;
}
score += s;
}
} else {
if (pt->is_generic) {
Scope *scope = make_scope(pt->scope->parent, c->allocator);
CheckerContext prev = c->context;
defer (c->context = prev);
c->context.scope = scope;
if (variadic) {
bool variadic_expand = false;
Type *slice = sig_params[param_count]->type;
GB_ASSERT(is_type_slice(slice));
Type *elem = base_type(slice)->Slice.elem;
Type *t = elem;
for (; operand_index < operands.count; operand_index++) {
Operand o = operands[operand_index];
if (vari_expand) {
variadic_expand = true;
t = slice;
if (operand_index != param_count) {
if (show_error) {
error(o.expr, "`..` in a variadic procedure can only have one variadic argument at the end");
final_proc_type = alloc_type(c->allocator, Type_Proc);
check_procedure_type(c, final_proc_type, pt->node, &operands);
}
TypeProc *pt = &final_proc_type->Proc;
GB_ASSERT(pt->params != NULL);
Entity **sig_params = pt->params->Tuple.variables;
isize operand_index = 0;
isize max_operand_count = gb_min(param_count, operands.count);
for (; operand_index < max_operand_count; operand_index++) {
Entity *e = sig_params[operand_index];
Type *t = e->type;
Operand o = operands[operand_index];
if (e->kind == Entity_TypeName) {
// GB_ASSERT(!variadic);
if (o.mode == Addressing_Invalid) {
continue;
} else if (o.mode != Addressing_Type) {
error(o.expr, "Expected a type for the argument");
}
if (score_) *score_ = score;
return CallArgumentError_MultipleVariadicExpand;
score += assign_score_function(1);
continue;
}
if (variadic) {
o = operands[operand_index];
}
i64 s = 0;
if (!check_is_assignable_to_with_score(c, &o, t, &s)) {
if (show_error) {
check_assignment(c, &o, t, str_lit("argument"));
}
err = CallArgumentError_WrongTypes;
}
score += s;
}
if (variadic) {
bool variadic_expand = false;
Type *slice = sig_params[param_count]->type;
GB_ASSERT(is_type_slice(slice));
Type *elem = base_type(slice)->Slice.elem;
Type *t = elem;
for (; operand_index < operands.count; operand_index++) {
Operand o = operands[operand_index];
if (vari_expand) {
variadic_expand = true;
t = slice;
if (operand_index != param_count) {
if (show_error) {
error(o.expr, "`..` in a variadic procedure can only have one variadic argument at the end");
}
if (score_) *score_ = score;
return CallArgumentError_MultipleVariadicExpand;
}
}
i64 s = 0;
if (!check_is_assignable_to_with_score(c, &o, t, &s)) {
if (show_error) {
check_assignment(c, &o, t, str_lit("argument"));
}
err = CallArgumentError_WrongTypes;
}
score += s;
}
}
i64 s = 0;
if (!check_is_assignable_to_with_score(c, &o, t, &s)) {
if (show_error) {
check_assignment(c, &o, t, str_lit("argument"));
}
err = CallArgumentError_WrongTypes;
}
score += s;
}
}
if (score_) *score_ = score;
if (result_type_) *result_type_ = final_proc_type->Proc.results;
return err;
}
@@ -5208,6 +5251,7 @@ CALL_ARGUMENT_CHECKER(check_named_call_arguments) {
}
if (score_) *score_ = score;
if (result_type_) *result_type_ = pt->results;
return err;
}
@@ -5267,7 +5311,7 @@ Type *check_call_arguments(Checker *c, Operand *operand, Type *proc_type, AstNod
Type *pt = base_type(p->type);
if (pt != NULL && is_type_proc(pt)) {
i64 score = 0;
CallArgumentError err = call_checker(c, call, pt, operands, CallArgumentMode_NoErrors, &score);
CallArgumentError err = call_checker(c, call, pt, operands, CallArgumentMode_NoErrors, &score, &result_type);
if (err == CallArgumentError_None) {
valids[valid_count].index = i;
valids[valid_count].score = score;
@@ -5312,18 +5356,11 @@ Type *check_call_arguments(Checker *c, Operand *operand, Type *proc_type, AstNod
add_entity_use(c, expr, e);
proc_type = e->type;
i64 score = 0;
CallArgumentError err = call_checker(c, call, proc_type, operands, CallArgumentMode_ShowErrors, &score);
if (proc_type != NULL && is_type_proc(proc_type)) {
result_type = base_type(proc_type)->Proc.results;
}
CallArgumentError err = call_checker(c, call, proc_type, operands, CallArgumentMode_ShowErrors, &score, &result_type);
}
} else {
i64 score = 0;
CallArgumentError err = call_checker(c, call, proc_type, operands, CallArgumentMode_ShowErrors, &score);
if (proc_type != NULL && is_type_proc(proc_type)) {
result_type = base_type(proc_type)->Proc.results;
}
CallArgumentError err = call_checker(c, call, proc_type, operands, CallArgumentMode_ShowErrors, &score, &result_type);
}
return result_type;
@@ -5473,13 +5510,7 @@ ExprKind check_call_expr(Checker *c, Operand *operand, AstNode *call) {
}
Type *pt = base_type(proc_type);
bool results_are_generic = false;
if (is_type_proc(pt) && pt->Proc.results != NULL) {
results_are_generic = is_type_generic(pt->Proc.results);
}
if (results_are_generic) {
operand->mode = Addressing_NoValue;
} else if (result_type == NULL) {
if (result_type == NULL) {
operand->mode = Addressing_NoValue;
} else {
GB_ASSERT(is_type_tuple(result_type));

View File

@@ -221,6 +221,7 @@ ExprInfo make_expr_info(bool is_lhs, AddressingMode mode, Type *type, ExactValue
struct Scope {
AstNode * node;
Scope * parent;
Scope * prev, *next;
Scope * first_child;
@@ -241,8 +242,6 @@ gb_global Scope *universal_scope = NULL;
struct DelayedDecl {
Scope * parent;
AstNode *decl;
@@ -278,6 +277,7 @@ struct CheckerInfo {
Map<DeclInfo *> entities; // Key: Entity *
Map<Entity *> foreigns; // Key: String
Map<AstFile *> files; // Key: String (full path)
Map<isize> type_info_map; // Key: Type *
isize type_info_count;
};
@@ -423,12 +423,12 @@ void destroy_scope(Scope *scope) {
void add_scope(Checker *c, AstNode *node, Scope *scope) {
GB_ASSERT(node != NULL);
GB_ASSERT(scope != NULL);
scope->node = node;
map_set(&c->info.scopes, hash_node(node), scope);
}
void check_open_scope(Checker *c, AstNode *node) {
GB_ASSERT(node != NULL);
node = unparen_expr(node);
GB_ASSERT(node->kind == AstNode_Invalid ||
is_ast_node_stmt(node) ||

View File

@@ -189,18 +189,26 @@ void ir_print_proc_type_without_pointer(irFileBuffer *f, irModule *m, Type *t) {
ir_fprintf(f, ", ");
}
}
isize param_index = 0;
for (isize i = 0; i < param_count; i++) {
if (i > 0) {
if (param_index > 0) {
ir_fprintf(f, ", ");
}
Entity *e = t->Proc.params->Tuple.variables[i];
if (e->kind != Entity_Variable) {
continue;
}
if (i+1 == param_count && t->Proc.c_vararg) {
ir_fprintf(f, "...");
} else {
ir_print_type(f, m, t->Proc.abi_compat_params[i]);
}
param_index++;
}
if (t->Proc.calling_convention == ProcCC_Odin) {
if (param_count > 0) {
if (param_index > 0) {
ir_fprintf(f, ", ");
}
ir_print_type(f, m, t_context_ptr);
@@ -354,11 +362,16 @@ void ir_print_type(irFileBuffer *f, irModule *m, Type *t) {
ir_print_type(f, m, t->Tuple.variables[0]->type);
} else {
ir_fprintf(f, "{");
isize index = 0;
for (isize i = 0; i < t->Tuple.variable_count; i++) {
if (i > 0) {
if (index > 0) {
ir_fprintf(f, ", ");
}
ir_print_type(f, m, t->Tuple.variables[i]->type);
Entity *e = t->Tuple.variables[i];
if (e->kind == Entity_Variable) {
ir_print_type(f, m, e->type);
index++;
}
}
ir_fprintf(f, "}");
}
@@ -1551,17 +1564,22 @@ void ir_print_proc(irFileBuffer *f, irModule *m, irProcedure *proc) {
}
}
isize param_index = 0;
if (param_count > 0) {
TypeTuple *params = &proc_type->params->Tuple;
for (isize i = 0; i < param_count; i++) {
Entity *e = params->variables[i];
Type *original_type = e->type;
Type *abi_type = proc_type->abi_compat_params[i];
if (i > 0) {
if (param_index > 0) {
ir_fprintf(f, ", ");
}
if (e->kind != Entity_Variable) {
continue;
}
if (i+1 == params->variable_count && proc_type->c_vararg) {
ir_fprintf(f, " ...");
ir_fprintf(f, " ...");
} else {
ir_print_type(f, m, abi_type);
if (e->flags&EntityFlag_NoAlias) {
@@ -1577,10 +1595,12 @@ void ir_print_proc(irFileBuffer *f, irModule *m, irProcedure *proc) {
}
}
}
param_index++;
}
}
if (proc_type->calling_convention == ProcCC_Odin) {
if (param_count > 0) {
if (param_index > 0) {
ir_fprintf(f, ", ");
}
ir_print_type(f, m, t_context_ptr);

View File

@@ -34,6 +34,7 @@ struct AstFile {
// NOTE(bill): Used to prevent type literals in control clauses
isize expr_level;
bool allow_range; // NOTE(bill): Ranges are only allowed in certain cases
bool allow_gen_proc_type;
bool in_foreign_block;
Array<AstNode *> decls;
@@ -2729,9 +2730,13 @@ AstNode *parse_proc_decl(AstFile *f) {
String link_name = {};
bool prev_allow_gen_proc_type = f->allow_gen_proc_type;
f->allow_gen_proc_type = true;
AstNode *name = parse_ident(f);
AstNode *type = parse_proc_type(f, token, &link_name);
u64 tags = type->ProcType.tags;
f->allow_gen_proc_type = prev_allow_gen_proc_type;
if (f->curr_token.kind == Token_OpenBrace) {
if ((tags & ProcTag_foreign) != 0) {
@@ -3404,12 +3409,13 @@ AstNode *parse_field_list(AstFile *f, isize *name_count_, u32 allowed_flags, Tok
isize total_name_count = 0;
bool allow_ellipsis = allowed_flags&FieldFlag_ellipsis;
bool allow_type_token = f->allow_gen_proc_type && allow_default_parameters;
while (f->curr_token.kind != follow &&
f->curr_token.kind != Token_Colon &&
f->curr_token.kind != Token_EOF) {
u32 flags = parse_field_prefixes(f);
AstNode *param = parse_var_type(f, allow_ellipsis, allow_default_parameters);
AstNode *param = parse_var_type(f, allow_ellipsis, allow_type_token);
AstNodeAndFlags naf = {param, flags};
array_add(&list, naf);
if (f->curr_token.kind != Token_Comma) {
@@ -3436,7 +3442,7 @@ AstNode *parse_field_list(AstFile *f, isize *name_count_, u32 allowed_flags, Tok
if (f->curr_token.kind != Token_Eq) {
expect_token_after(f, Token_Colon, "field list");
type = parse_var_type(f, allow_ellipsis, allow_default_parameters);
type = parse_var_type(f, allow_ellipsis, allow_type_token);
}
if (allow_token(f, Token_Eq)) {
// TODO(bill): Should this be true==lhs or false==rhs?
@@ -3788,7 +3794,10 @@ AstNode *parse_type_or_ident(AstFile *f) {
case Token_proc: {
Token token = f->curr_token; next_token(f);
bool prev_allow_gen_proc_type = f->allow_gen_proc_type;
f->allow_gen_proc_type = false;
AstNode *pt = parse_proc_type(f, token, NULL);
f->allow_gen_proc_type = prev_allow_gen_proc_type;
if (pt->ProcType.tags != 0) {
syntax_error(token, "A procedure type cannot have tags");
}

View File

@@ -1,4 +1,5 @@
struct Scope;
struct AstNode;
enum BasicKind {
Basic_Invalid,
@@ -135,18 +136,19 @@ struct TypeRecord {
i64 * offsets; \
}) \
TYPE_KIND(Proc, struct { \
Scope *scope; \
Type * params; /* Type_Tuple */ \
Type * results; /* Type_Tuple */ \
i32 param_count; \
i32 result_count; \
bool return_by_pointer; \
Type **abi_compat_params; \
Type * abi_compat_result_type; \
bool variadic; \
bool require_results; \
bool c_vararg; \
bool is_generic; \
AstNode *node; \
Scope * scope; \
Type * params; /* Type_Tuple */ \
Type * results; /* Type_Tuple */ \
i32 param_count; \
i32 result_count; \
bool return_by_pointer; \
Type ** abi_compat_params; \
Type * abi_compat_result_type; \
bool variadic; \
bool require_results; \
bool c_vararg; \
bool is_generic; \
ProcCallingConvention calling_convention; \
}) \
TYPE_KIND(Map, struct { \
@@ -1164,7 +1166,7 @@ bool are_types_identical(Type *x, Type *y) {
for (isize i = 0; i < x->Tuple.variable_count; i++) {
Entity *xe = x->Tuple.variables[i];
Entity *ye = y->Tuple.variables[i];
if (!are_types_identical(xe->type, ye->type)) {
if (xe->kind != ye->kind || !are_types_identical(xe->type, ye->type)) {
return false;
}
}
@@ -2383,19 +2385,24 @@ gbString write_type_to_string(gbString str, Type *type) {
for (isize i = 0; i < type->Tuple.variable_count; i++) {
Entity *var = type->Tuple.variables[i];
if (var != NULL) {
GB_ASSERT(var->kind == Entity_Variable);
if (i > 0) {
str = gb_string_appendc(str, ", ");
}
if (var->flags&EntityFlag_CVarArg) {
str = gb_string_appendc(str, "#c_vararg ");
}
if (var->flags&EntityFlag_Ellipsis) {
Type *slice = base_type(var->type);
str = gb_string_appendc(str, "..");
GB_ASSERT(is_type_slice(var->type));
str = write_type_to_string(str, slice->Slice.elem);
if (var->kind == Entity_Variable) {
if (var->flags&EntityFlag_CVarArg) {
str = gb_string_appendc(str, "#c_vararg ");
}
if (var->flags&EntityFlag_Ellipsis) {
Type *slice = base_type(var->type);
str = gb_string_appendc(str, "..");
GB_ASSERT(is_type_slice(var->type));
str = write_type_to_string(str, slice->Slice.elem);
} else {
str = write_type_to_string(str, var->type);
}
} else {
GB_ASSERT(var->kind == Entity_TypeName);
str = gb_string_appendc(str, "type/");
str = write_type_to_string(str, var->type);
}
}