mirror of
https://github.com/odin-lang/Odin.git
synced 2026-01-07 05:23:12 +00:00
Merge branch 'master' of https://github.com/odin-lang/Odin
This commit is contained in:
gingerBill
@@ -457,6 +457,229 @@ gb_internal bool check_builtin_objc_procedure(CheckerContext *c, Operand *operan
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return true;
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} break;
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case BuiltinProc_objc_block:
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{
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// NOTE(harold): The last argument specified in the call is the handler proc,
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// any other arguments before it are capture by-copy arguments.
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auto param_operands = slice_make<Operand>(permanent_allocator(), ce->args.count);
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isize capture_arg_count = ce->args.count - 1;
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// NOTE(harold): The first parameter is already checked at check_builtin_procedure().
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// Checking again would invalidate the Entity -> Value map for direct parameters if it's the handler proc.
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param_operands[0] = *operand;
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for (isize i = 0; i < ce->args.count-1; i++) {
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Operand x = {};
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check_expr(c, &x, ce->args[i]);
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switch (x.mode) {
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case Addressing_Value:
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case Addressing_Context:
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case Addressing_Variable:
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case Addressing_Constant:
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param_operands[i] = x;
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break;
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default:
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gbString e = expr_to_string(x.expr);
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gbString t = type_to_string(x.type);
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error(x.expr, "'%.*s' capture arguments must be values, but got %s of type %s", LIT(builtin_name), e, t);
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gb_string_free(t);
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gb_string_free(e);
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return false;
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}
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}
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// Validate handler proc
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Operand handler = {};
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if (capture_arg_count == 0) {
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// It's already been checked and assigned
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handler = param_operands[0];
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} else {
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check_expr_or_type(c, &handler, ce->args[capture_arg_count]);
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param_operands[capture_arg_count] = handler;
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}
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if (!is_operand_value(handler) || handler.type->kind != Type_Proc) {
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gbString e = expr_to_string(handler.expr);
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gbString t = type_to_string(handler.type);
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error(handler.expr, "'%.*s' expected a procedure, but got '%s' of type %s", LIT(builtin_name), e, t);
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gb_string_free(t);
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gb_string_free(e);
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return false;
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}
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Ast *handler_node = unparen_expr(handler.expr);
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// Only direct reference to procs are allowed
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switch (handler_node->kind) {
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case Ast_ProcLit: break; // ok
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case Ast_Ident: {
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auto& ident = handler_node->Ident;
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if (ident.entity == nullptr) {
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error(handler.expr, "'%.*s' failed to resolve entity from expression", LIT(builtin_name));
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return false;
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}
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if (ident.entity->kind != Entity_Procedure) {
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gbString e = expr_to_string(handler_node);
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ERROR_BLOCK();
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error(handler.expr, "'%.*s' expected a direct reference to a procedure", LIT(builtin_name));
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if(ident.entity->kind == Entity_Variable) {
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error_line("\tSuggestion: Variables referencing a procedure are not allowed, they are not a direct procedure reference.");
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} else {
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error_line("\tSuggestion: Ensure '%s' is not a runtime-evaluated expression.", e); // NOTE(harold): Is this case possible to hit?
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}
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error_line("\n\t Refer to a procedure directly by its name or declare it anonymously: %.*s(proc(){})", LIT(builtin_name));
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gb_string_free(e);
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return false;
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}
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} break;
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default: {
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gbString e = expr_to_string(handler_node);
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ERROR_BLOCK();
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error(handler.expr, "'%.*s' expected a direct reference to a procedure", LIT(builtin_name));
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if( handler_node->kind == Ast_CallExpr) {
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error_line("\tSuggestion: Do not use a procedure returned from another procedure.");
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} else {
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error_line("\tSuggestion: Ensure '%s' is not a runtime-evaluated expression.", e);
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}
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error_line("\n\t Refer to a procedure directly by its name or declare it anonymously: %.*s(proc(){})", LIT(builtin_name));
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gb_string_free(e);
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} return false;
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} // End switch
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auto& handler_type_proc = handler.type->Proc;
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if (capture_arg_count > handler_type_proc.param_count) {
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error(handler.expr, "'%.*s' captured arguments exceeded the handler's parameter count", LIT(builtin_name));
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return false;
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}
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// If the handler proc is odin calling convention, but there must be a context defined in this scope.
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if (handler_type_proc.calling_convention == ProcCC_Odin) {
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if ((c->scope->flags & ScopeFlag_ContextDefined) == 0) {
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ERROR_BLOCK();
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error(handler.expr, "The handler procedure for '%.*s' requires a context, but no context is defined in the current scope", LIT(builtin_name));
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error_line("\tSuggestion: 'context = runtime.default_context()', or use the \"c\" calling convention for the handler procedure");
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return false;
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}
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}
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// At most a single return value is supported
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if (handler_type_proc.result_count > 1) {
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error(handler_type_proc.node->ProcType.results, "Handler procedures for '%.*s' cannot have multiple return values", LIT(builtin_name));
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return false;
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}
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// Ensure that captured args are assignable to the handler's corresponding capture params
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if (handler_type_proc.param_count > 0) {
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auto& handler_param_types = handler.type->Proc.params->Tuple.variables;
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Slice<Entity *> handler_capture_param_types = slice(handler_param_types, handler_param_types.count - capture_arg_count, handler_param_types.count);
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for (isize i = 0; i < capture_arg_count; i++) {
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Operand op = param_operands[i];
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if (!check_is_assignable_to(c, &op, handler_capture_param_types[i]->type)) {
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gbString e = expr_to_string(op.expr);
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gbString src = type_to_string(op.type);
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gbString dst = type_to_string(handler_capture_param_types[i]->type);
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error(op.expr, "'%.*s' captured value '%s' of type '%s' is not assignable to type '%s'", LIT(builtin_name), e, src, dst);
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gb_string_free(e);
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gb_string_free(src);
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gb_string_free(dst);
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return false;
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}
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}
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}
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ProcCallingConvention cc = handler_type_proc.calling_convention;
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switch (cc) {
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case ProcCC_Odin:
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case ProcCC_Contextless:
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case ProcCC_CDecl:
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break; // ok
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default:
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ERROR_BLOCK();
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error(handler.expr, "'%.*s' Invalid calling convention for block procedure.", LIT(builtin_name));
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error_line("\tSuggestion: Do not specify a calling convention ot else use \"c\" or \"cotextless\"");
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return false;
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}
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if (handler_type_proc.is_polymorphic) {
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error(handler.expr, "'%.*s' Unspecialized polymorphic procedures are not allowed.", LIT(builtin_name));
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return false;
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}
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// Create the specialized Objc_Block type that this intrinsic will return
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Token ident = {};
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ident.kind = Token_Ident;
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ident.string = str_lit("Objc_Block");
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ident.pos = ast_token(call).pos;
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Token l_paren = {};
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l_paren.kind = Token_OpenParen;
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l_paren.string = str_lit("(");
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l_paren.pos = ident.pos;
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Token r_paren = {};
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r_paren.kind = Token_CloseParen;
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l_paren.string = str_lit(")");
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r_paren.pos = ident.pos;
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// Remove the capture args from the resulting Objc_Block type signature
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Ast* handler_proc_type_copy = clone_ast(handler_type_proc.node);
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handler_proc_type_copy->ProcType.params->FieldList.list.count -= capture_arg_count;
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// Make sure the Objc_Block's specialized proc is always "c" calling conv,
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// even if we have a context, as the invoker is always "c".
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// This allows us to have compatibility with the target block types with either calling convention used.
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handler_proc_type_copy->ProcType.calling_convention = ProcCC_CDecl;
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Array<Ast *> poly_args = {};
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array_init(&poly_args, permanent_allocator(), 1, 1);
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poly_args[0] = handler_proc_type_copy;
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Type *t_Objc_Block = find_core_type(c->checker, str_lit("Objc_Block"));
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Operand poly_op = {};
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poly_op.type = t_Objc_Block;
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poly_op.mode = Addressing_Type;
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Ast *poly_call = ast_call_expr(nullptr, ast_ident(nullptr, ident), poly_args, l_paren, r_paren, {});
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auto err = check_polymorphic_record_type(c, &poly_op, poly_call);
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if (err != 0) {
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operand->mode = Addressing_Invalid;
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operand->type = t_invalid;
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error(handler.expr, "'%.*s' failed to determine resulting Objc_Block handler procedure", LIT(builtin_name));
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return false;
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}
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GB_ASSERT(poly_op.type != t_Objc_Block);
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GB_ASSERT(poly_op.mode == Addressing_Type);
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bool is_global_block = capture_arg_count == 0 && handler_type_proc.calling_convention != ProcCC_Odin;
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if (is_global_block) {
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try_to_add_package_dependency(c, "runtime", "_NSConcreteGlobalBlock");
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} else {
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try_to_add_package_dependency(c, "runtime", "_NSConcreteStackBlock");
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}
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*operand = poly_op;
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operand->type = alloc_type_pointer(operand->type);
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operand->mode = Addressing_Value;
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return true;
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} break;
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}
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}
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@@ -2291,6 +2514,7 @@ gb_internal bool check_builtin_procedure(CheckerContext *c, Operand *operand, As
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case BuiltinProc_objc_register_selector:
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case BuiltinProc_objc_register_class:
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case BuiltinProc_objc_ivar_get:
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case BuiltinProc_objc_block:
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return check_builtin_objc_procedure(c, operand, call, id, type_hint);
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case BuiltinProc___entry_point:
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@@ -1460,6 +1460,10 @@ gb_internal void destroy_checker_info(CheckerInfo *i) {
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mpsc_destroy(&i->foreign_decls_to_check);
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map_destroy(&i->objc_msgSend_types);
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string_set_destroy(&i->obcj_class_name_set);
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mpsc_destroy(&i->objc_class_implementations);
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map_destroy(&i->objc_method_implementations);
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string_map_destroy(&i->load_file_cache);
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string_map_destroy(&i->load_directory_cache);
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map_destroy(&i->load_directory_map);
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@@ -353,6 +353,7 @@ BuiltinProc__type_end,
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BuiltinProc_objc_register_selector,
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BuiltinProc_objc_register_class,
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BuiltinProc_objc_ivar_get,
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BuiltinProc_objc_block,
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BuiltinProc_constant_utf16_cstring,
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@@ -714,6 +715,7 @@ gb_global BuiltinProc builtin_procs[BuiltinProc_COUNT] = {
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{STR_LIT("objc_register_selector"), 1, false, Expr_Expr, BuiltinProcPkg_intrinsics, false, true},
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{STR_LIT("objc_register_class"), 1, false, Expr_Expr, BuiltinProcPkg_intrinsics, false, true},
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{STR_LIT("objc_ivar_get"), 1, false, Expr_Expr, BuiltinProcPkg_intrinsics, false, true},
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{STR_LIT("objc_block"), 1, true, Expr_Expr, BuiltinProcPkg_intrinsics, false, true},
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{STR_LIT("constant_utf16_cstring"), 1, false, Expr_Expr, BuiltinProcPkg_intrinsics},
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@@ -198,6 +198,7 @@ struct lbModule {
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StringMap<lbAddr> objc_classes;
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StringMap<lbAddr> objc_selectors;
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StringMap<lbAddr> objc_ivars;
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isize objc_next_block_id; // Used to name objective-c blocks, per module
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PtrMap<u64/*type hash*/, lbAddr> map_cell_info_map; // address of runtime.Map_Info
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PtrMap<u64/*type hash*/, lbAddr> map_info_map; // address of runtime.Map_Cell_Info
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@@ -483,7 +484,10 @@ gb_internal void lb_emit_if(lbProcedure *p, lbValue cond, lbBlock *true_block, l
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gb_internal void lb_start_block(lbProcedure *p, lbBlock *b);
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gb_internal lbValue lb_build_call_expr(lbProcedure *p, Ast *expr);
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gb_internal lbProcedure *lb_create_dummy_procedure(lbModule *m, String link_name, Type *type);
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gb_internal void lb_begin_procedure_body(lbProcedure *p);
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gb_internal void lb_end_procedure_body(lbProcedure *p);
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gb_internal lbValue lb_emit_call(lbProcedure *p, lbValue value, Array<lbValue> const &args, ProcInlining inlining);
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gb_internal lbAddr lb_find_or_generate_context_ptr(lbProcedure *p);
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gb_internal lbContextData *lb_push_context_onto_stack(lbProcedure *p, lbAddr ctx);
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@@ -2944,6 +2944,7 @@ gb_internal lbValue lb_find_ident(lbProcedure *p, lbModule *m, Entity *e, Ast *e
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gb_internal lbValue lb_find_procedure_value_from_entity(lbModule *m, Entity *e) {
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lbGenerator *gen = m->gen;
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|
||||
GB_ASSERT(e != nullptr);
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GB_ASSERT(is_type_proc(e->type));
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e = strip_entity_wrapping(e);
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GB_ASSERT(e != nullptr);
|
||||
|
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@@ -3746,6 +3746,7 @@ gb_internal lbValue lb_build_builtin_proc(lbProcedure *p, Ast *expr, TypeAndValu
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case BuiltinProc_objc_register_selector: return lb_handle_objc_register_selector(p, expr);
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case BuiltinProc_objc_register_class: return lb_handle_objc_register_class(p, expr);
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case BuiltinProc_objc_ivar_get: return lb_handle_objc_ivar_get(p, expr);
|
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case BuiltinProc_objc_block: return lb_handle_objc_block(p, expr);
|
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|
||||
|
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case BuiltinProc_constant_utf16_cstring:
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|
||||
@@ -2263,6 +2263,397 @@ gb_internal lbValue lb_handle_objc_ivar_get(lbProcedure *p, Ast *expr) {
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return lb_handle_objc_ivar_for_objc_object_pointer(p, self);
|
||||
}
|
||||
|
||||
gb_internal void lb_create_objc_block_helper_procs(
|
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lbModule *m, LLVMTypeRef block_lit_type, isize capture_field_offset,
|
||||
Slice<lbValue> capture_values, Slice<isize> objc_object_indices,
|
||||
lbProcedure *&out_copy_helper, lbProcedure *&out_dispose_helper
|
||||
) {
|
||||
gbString copy_helper_name = gb_string_append_fmt(gb_string_make(temporary_allocator(), ""), "__$objc_block_copy_helper_%lld", m->objc_next_block_id);
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||||
gbString dispose_helper_name = gb_string_append_fmt(gb_string_make(temporary_allocator(), ""), "__$objc_block_dispose_helper_%lld", m->objc_next_block_id);
|
||||
|
||||
// copy: Block_Literal *dst, Block_Literal *src, i32 field_apropos
|
||||
// dispose: Block_Literal *src, i32 field_apropos
|
||||
Type *types[3] = { t_rawptr, t_rawptr, t_i32 };
|
||||
|
||||
Type *copy_tuple = alloc_type_tuple_from_field_types(types, 3, false, true);
|
||||
Type *dispose_tuple = alloc_type_tuple_from_field_types(&types[1], 2, false, true);
|
||||
|
||||
Type *copy_proc_type = alloc_type_proc(nullptr, copy_tuple, 3, nullptr, 0, false, ProcCC_CDecl);
|
||||
Type *dispose_proc_type = alloc_type_proc(nullptr, dispose_tuple, 2, nullptr, 0, false, ProcCC_CDecl);
|
||||
|
||||
lbProcedure *copy_proc = lb_create_dummy_procedure(m, make_string((u8*)copy_helper_name, gb_string_length(copy_helper_name)), copy_proc_type);
|
||||
lbProcedure *dispose_proc = lb_create_dummy_procedure(m, make_string((u8*)dispose_helper_name, gb_string_length(dispose_helper_name)), dispose_proc_type);
|
||||
LLVMSetLinkage(copy_proc->value, LLVMPrivateLinkage);
|
||||
LLVMSetLinkage(dispose_proc->value, LLVMPrivateLinkage);
|
||||
|
||||
|
||||
const int BLOCK_FIELD_IS_OBJECT = 3; // id, NSObject, __attribute__((NSObject)), block, ...
|
||||
const int BLOCK_FIELD_IS_BLOCK = 7; // a block variable
|
||||
|
||||
Type *block_base_type = find_core_type(m->info->checker, str_lit("Objc_Block"));
|
||||
|
||||
auto is_object_objc_block = [](Type *type, Type *block_base_type) -> bool {
|
||||
|
||||
Type *base = base_type(type_deref(type));
|
||||
GB_ASSERT(base->kind == Type_Struct);
|
||||
|
||||
while (is_type_polymorphic_record_specialized(base)) {
|
||||
if (base->Struct.polymorphic_parent) {
|
||||
base = base->Struct.polymorphic_parent;
|
||||
|
||||
if (base == block_base_type) {
|
||||
return true;
|
||||
}
|
||||
base = base_type(base);
|
||||
GB_ASSERT(base->kind == Type_Struct);
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
};
|
||||
|
||||
lb_begin_procedure_body(copy_proc);
|
||||
lb_begin_procedure_body(dispose_proc);
|
||||
{
|
||||
for (isize object_index : objc_object_indices) {
|
||||
const auto field_offset = unsigned(capture_field_offset+object_index);
|
||||
|
||||
Type *field_type = capture_values[object_index].type;
|
||||
LLVMTypeRef field_raw_type = lb_type(m, field_type);
|
||||
|
||||
GB_ASSERT(is_type_objc_object(field_type));
|
||||
bool is_block_obj = is_object_objc_block(field_type, block_base_type);
|
||||
|
||||
auto copy_args = array_make<lbValue>(temporary_allocator(), 3, 3);
|
||||
auto dispose_args = array_make<lbValue>(temporary_allocator(), 2, 2);
|
||||
|
||||
// Copy helper
|
||||
{
|
||||
LLVMValueRef dst_field = LLVMBuildStructGEP2(copy_proc->builder, block_lit_type, copy_proc->raw_input_parameters[0], field_offset, "");
|
||||
LLVMValueRef src_field = LLVMBuildStructGEP2(copy_proc->builder, block_lit_type, copy_proc->raw_input_parameters[1], field_offset, "");
|
||||
|
||||
lbValue dst_value = {}, src_value = {};
|
||||
dst_value.type = alloc_type_pointer(field_type);
|
||||
dst_value.value = dst_field;
|
||||
|
||||
src_value.type = field_type;
|
||||
src_value.value = LLVMBuildLoad2(copy_proc->builder, field_raw_type, src_field, "");
|
||||
|
||||
copy_args[0] = dst_value;
|
||||
copy_args[1] = src_value;
|
||||
copy_args[2] = lb_const_int(m, t_i32, u64(is_block_obj ? BLOCK_FIELD_IS_BLOCK : BLOCK_FIELD_IS_OBJECT));
|
||||
|
||||
lb_emit_runtime_call(copy_proc, "_Block_object_assign", copy_args);
|
||||
}
|
||||
|
||||
// Dispose helper
|
||||
{
|
||||
LLVMValueRef src_field = LLVMBuildStructGEP2(dispose_proc->builder, block_lit_type, dispose_proc->raw_input_parameters[0], field_offset, "");
|
||||
lbValue src_value = {};
|
||||
src_value.type = field_type;
|
||||
src_value.value = LLVMBuildLoad2(dispose_proc->builder, field_raw_type, src_field, "");
|
||||
|
||||
dispose_args[0] = src_value;
|
||||
dispose_args[1] = lb_const_int(m, t_i32, u64(is_block_obj ? BLOCK_FIELD_IS_BLOCK : BLOCK_FIELD_IS_OBJECT));
|
||||
|
||||
lb_emit_runtime_call(dispose_proc, "_Block_object_dispose", dispose_args);
|
||||
}
|
||||
}
|
||||
}
|
||||
lb_end_procedure_body(copy_proc);
|
||||
lb_end_procedure_body(dispose_proc);
|
||||
|
||||
|
||||
out_copy_helper = copy_proc;
|
||||
out_dispose_helper = dispose_proc;
|
||||
}
|
||||
|
||||
gb_internal lbValue lb_handle_objc_block(lbProcedure *p, Ast *expr) {
|
||||
/// #See: https://clang.llvm.org/docs/Block-ABI-Apple.html
|
||||
/// https://www.newosxbook.com/src.php?tree=xnu&file=/libkern/libkern/Block_private.h
|
||||
/// https://github.com/llvm/llvm-project/blob/21f1f9558df3830ffa637def364e3c0cb0dbb3c0/compiler-rt/lib/BlocksRuntime/Block_private.h
|
||||
/// https://github.com/apple-oss-distributions/libclosure/blob/3668b0837f47be3cc1c404fb5e360f4ff178ca13/runtime.cpp
|
||||
|
||||
ast_node(ce, CallExpr, expr);
|
||||
GB_ASSERT(ce->args.count > 0);
|
||||
|
||||
lbModule *m = p->module;
|
||||
|
||||
m->objc_next_block_id += 1;
|
||||
|
||||
const isize capture_arg_count = ce->args.count - 1;
|
||||
|
||||
Type *block_result_type = type_of_expr(expr);
|
||||
GB_ASSERT(block_result_type != nullptr && block_result_type->kind == Type_Pointer);
|
||||
|
||||
LLVMTypeRef lb_type_rawptr = lb_type(m, t_rawptr);
|
||||
LLVMTypeRef lb_type_i32 = lb_type(m, t_i32);
|
||||
LLVMTypeRef lb_type_int = lb_type(m, t_int);
|
||||
|
||||
// Build user proc
|
||||
// Type * user_proc_type = type_of_expr(ce->args[capture_arg_count]);
|
||||
lbValue user_proc_value = lb_build_expr(p, ce->args[capture_arg_count]);
|
||||
auto& user_proc = user_proc_value.type->Proc;
|
||||
GB_ASSERT(user_proc_value.type->kind == Type_Proc);
|
||||
|
||||
const bool is_global = capture_arg_count == 0 && user_proc.calling_convention != ProcCC_Odin;
|
||||
const isize block_forward_args = user_proc.param_count - capture_arg_count;
|
||||
const isize capture_fields_offset = user_proc.calling_convention != ProcCC_Odin ? 5 : 6;
|
||||
|
||||
Ast *proc_lit = unparen_expr(ce->args[capture_arg_count]);
|
||||
if (proc_lit->kind == Ast_Ident) {
|
||||
proc_lit = proc_lit->Ident.entity->decl_info->proc_lit;
|
||||
}
|
||||
GB_ASSERT(proc_lit->kind == Ast_ProcLit);
|
||||
|
||||
lbProcedure *copy_helper = {}, *dispose_helper = {};
|
||||
|
||||
// Build captured arguments & collect the ones that are Objective-C objects
|
||||
auto captured_values = array_make<lbValue>(temporary_allocator(), capture_arg_count, capture_arg_count);
|
||||
auto objc_captures = array_make<isize>(temporary_allocator());
|
||||
|
||||
for (isize i = 0; i < capture_arg_count; i++) {
|
||||
captured_values[i] = lb_build_expr(p, ce->args[i]);
|
||||
|
||||
if (is_type_pointer(captured_values[i].type) && is_type_objc_object(captured_values[i].type)) {
|
||||
array_add(&objc_captures, i);
|
||||
}
|
||||
}
|
||||
|
||||
const bool has_objc_fields = objc_captures.count > 0;
|
||||
|
||||
|
||||
// Create proc with the block signature
|
||||
// (takes a block literal pointer as the first parameter, followed by any expected ones from the user's proc)
|
||||
gbString block_invoker_name = gb_string_append_fmt(gb_string_make(permanent_allocator(), ""), "__$objc_block_invoker_%lld", m->objc_next_block_id);
|
||||
|
||||
// Add + 1 because the first parameter received is the block literal pointer itself
|
||||
auto invoker_args = array_make<Type *>(temporary_allocator(), block_forward_args + 1, block_forward_args + 1);
|
||||
invoker_args[0] = t_rawptr;
|
||||
|
||||
GB_ASSERT(block_forward_args <= user_proc.param_count);
|
||||
if (user_proc.param_count > 0) {
|
||||
Slice<Entity *> user_proc_param_types = user_proc.params->Tuple.variables;
|
||||
for (isize i = 0; i < block_forward_args; i++) {
|
||||
invoker_args[i+1] = user_proc_param_types[i]->type;
|
||||
}
|
||||
}
|
||||
|
||||
GB_ASSERT(user_proc.result_count <= 1);
|
||||
|
||||
Type *invoker_args_tuple = alloc_type_tuple_from_field_types(invoker_args.data, invoker_args.count, false, true);
|
||||
Type *invoker_results_tuple = nullptr;
|
||||
if (user_proc.result_count > 0) {
|
||||
invoker_results_tuple = alloc_type_tuple_from_field_types(&user_proc.results->Tuple.variables[0]->type, 1, false, true);
|
||||
}
|
||||
|
||||
Type *invoker_proc_type = alloc_type_proc(nullptr, invoker_args_tuple, invoker_args_tuple->Tuple.variables.count,
|
||||
invoker_results_tuple, user_proc.result_count, false, ProcCC_CDecl);
|
||||
|
||||
lbProcedure *invoker_proc = lb_create_dummy_procedure(m, make_string((u8*)block_invoker_name,
|
||||
gb_string_length(block_invoker_name)), invoker_proc_type);
|
||||
LLVMSetLinkage(invoker_proc->value, LLVMPrivateLinkage);
|
||||
|
||||
// Create the block descriptor and block literal
|
||||
gbString block_lit_type_name = gb_string_make(temporary_allocator(), "__$ObjC_Block_Literal_");
|
||||
block_lit_type_name = gb_string_append_fmt(block_lit_type_name, "%lld", m->objc_next_block_id);
|
||||
|
||||
gbString block_desc_type_name = gb_string_make(temporary_allocator(), "__$ObjC_Block_Descriptor_");
|
||||
block_desc_type_name = gb_string_append_fmt(block_desc_type_name, "%lld", m->objc_next_block_id);
|
||||
|
||||
LLVMTypeRef block_lit_type = {};
|
||||
LLVMTypeRef block_desc_type = {};
|
||||
LLVMValueRef block_desc_initializer = {};
|
||||
|
||||
{
|
||||
block_desc_type = LLVMStructCreateNamed(m->ctx, block_desc_type_name);
|
||||
|
||||
LLVMTypeRef fields_types[4] = {
|
||||
lb_type_int, // Reserved
|
||||
lb_type_int, // Block size
|
||||
lb_type_rawptr, // Copy helper func pointer
|
||||
lb_type_rawptr, // Dispose helper func pointer
|
||||
};
|
||||
|
||||
LLVMStructSetBody(block_desc_type, fields_types, has_objc_fields ? 4 : 2, false);
|
||||
}
|
||||
|
||||
{
|
||||
block_lit_type = LLVMStructCreateNamed(m->ctx, block_lit_type_name);
|
||||
|
||||
auto fields = array_make<LLVMTypeRef>(temporary_allocator());
|
||||
|
||||
array_add(&fields, lb_type_rawptr); // isa
|
||||
array_add(&fields, lb_type_i32); // flags
|
||||
array_add(&fields, lb_type_i32); // reserved
|
||||
array_add(&fields, lb_type_rawptr); // invoke
|
||||
array_add(&fields, block_desc_type); // descriptor
|
||||
|
||||
if (user_proc.calling_convention == ProcCC_Odin) {
|
||||
array_add(&fields, lb_type(m, t_context)); // context
|
||||
}
|
||||
|
||||
// From here on, fields for the captured vars are added
|
||||
for (lbValue cap_arg : captured_values) {
|
||||
array_add(&fields, lb_type(m, cap_arg.type));
|
||||
}
|
||||
|
||||
LLVMStructSetBody(block_lit_type, fields.data, (unsigned)fields.count, false);
|
||||
}
|
||||
|
||||
// Generate copy and dispose helper functions for captured params that are Objective-C objects (or a Block)
|
||||
if (has_objc_fields) {
|
||||
lb_create_objc_block_helper_procs(m, block_lit_type, capture_fields_offset,
|
||||
slice(captured_values, 0, captured_values.count),
|
||||
slice(objc_captures, 0, objc_captures.count),
|
||||
copy_helper, dispose_helper);
|
||||
}
|
||||
|
||||
{
|
||||
LLVMValueRef fields_values[4] = {
|
||||
lb_const_int(m, t_int, 0).value, // Reserved
|
||||
lb_const_int(m, t_int, u64(lb_sizeof(block_lit_type))).value, // Block size
|
||||
has_objc_fields ? copy_helper->value : nullptr, // Copy helper
|
||||
has_objc_fields ? dispose_helper->value : nullptr, // Dispose helper
|
||||
};
|
||||
|
||||
block_desc_initializer = LLVMConstNamedStruct(block_desc_type, fields_values, has_objc_fields ? 4 : 2);
|
||||
}
|
||||
|
||||
// Create global block descriptor
|
||||
gbString desc_global_name = gb_string_make(temporary_allocator(), "__$objc_block_desc_");
|
||||
desc_global_name = gb_string_append_fmt(desc_global_name, "%lld", m->objc_next_block_id);
|
||||
|
||||
LLVMValueRef p_descriptor = LLVMAddGlobal(m->mod, block_desc_type, desc_global_name);
|
||||
LLVMSetInitializer(p_descriptor, block_desc_initializer);
|
||||
|
||||
|
||||
/// Invoker body
|
||||
lb_begin_procedure_body(invoker_proc);
|
||||
{
|
||||
auto call_args = array_make<lbValue>(temporary_allocator(), user_proc.param_count, user_proc.param_count);
|
||||
|
||||
for (isize i = 1; i < invoker_proc->raw_input_parameters.count; i++) {
|
||||
lbValue arg = {};
|
||||
arg.type = invoker_args[i];
|
||||
arg.value = invoker_proc->raw_input_parameters[i],
|
||||
call_args[i-1] = arg;
|
||||
}
|
||||
|
||||
LLVMValueRef block_literal = invoker_proc->raw_input_parameters[0];
|
||||
|
||||
// Push context, if needed
|
||||
if (user_proc.calling_convention == ProcCC_Odin) {
|
||||
LLVMValueRef p_context = LLVMBuildStructGEP2(invoker_proc->builder, block_lit_type, block_literal, 5, "context");
|
||||
lbValue ctx_val = {};
|
||||
ctx_val.type = t_context_ptr;
|
||||
ctx_val.value = p_context;
|
||||
|
||||
lb_push_context_onto_stack(invoker_proc, lb_addr(ctx_val));
|
||||
}
|
||||
|
||||
// Copy capture parameters from the block literal
|
||||
for (isize i = 0; i < capture_arg_count; i++) {
|
||||
LLVMValueRef cap_value = LLVMBuildStructGEP2(invoker_proc->builder, block_lit_type, block_literal, unsigned(capture_fields_offset + i), "");
|
||||
|
||||
lbValue cap_arg = {};
|
||||
cap_arg.value = cap_value;
|
||||
cap_arg.type = alloc_type_pointer(captured_values[i].type);
|
||||
|
||||
lbValue arg = lb_emit_load(invoker_proc, cap_arg);
|
||||
call_args[block_forward_args+i] = arg;
|
||||
}
|
||||
|
||||
lbValue result = lb_emit_call(invoker_proc, user_proc_value, call_args, proc_lit->ProcLit.inlining);
|
||||
|
||||
GB_ASSERT(user_proc.result_count <= 1);
|
||||
if (user_proc.result_count > 0) {
|
||||
GB_ASSERT(result.value != nullptr);
|
||||
LLVMBuildRet(p->builder, result.value);
|
||||
}
|
||||
}
|
||||
lb_end_procedure_body(invoker_proc);
|
||||
|
||||
|
||||
/// Create local block literal
|
||||
const int BLOCK_HAS_COPY_DISPOSE = (1 << 25);
|
||||
const int BLOCK_IS_GLOBAL = (1 << 28);
|
||||
|
||||
int raw_flags = is_global ? BLOCK_IS_GLOBAL : 0;
|
||||
if (has_objc_fields) {
|
||||
raw_flags |= BLOCK_HAS_COPY_DISPOSE;
|
||||
}
|
||||
|
||||
gbString block_var_name = gb_string_make(temporary_allocator(), "__$objc_block_literal_");
|
||||
block_var_name = gb_string_append_fmt(block_var_name, "%lld", m->objc_next_block_id);
|
||||
|
||||
lbValue result = {};
|
||||
result.type = block_result_type;
|
||||
|
||||
lbValue isa_val = lb_find_runtime_value(m, is_global ? str_lit("_NSConcreteGlobalBlock") : str_lit("_NSConcreteStackBlock"));
|
||||
lbValue flags_val = lb_const_int(m, t_i32, (u64)raw_flags);
|
||||
lbValue reserved_val = lb_const_int(m, t_i32, 0);
|
||||
|
||||
if (is_global) {
|
||||
LLVMValueRef p_block_lit = LLVMAddGlobal(m->mod, block_lit_type, block_var_name);
|
||||
result.value = p_block_lit;
|
||||
|
||||
LLVMValueRef fields_values[5] = {
|
||||
isa_val.value, // isa
|
||||
flags_val.value, // flags
|
||||
reserved_val.value, // reserved
|
||||
invoker_proc->value, // invoke
|
||||
p_descriptor // descriptor
|
||||
};
|
||||
|
||||
LLVMValueRef g_block_lit_initializer = LLVMConstNamedStruct(block_lit_type, fields_values, gb_count_of(fields_values));
|
||||
LLVMSetInitializer(p_block_lit, g_block_lit_initializer);
|
||||
|
||||
} else {
|
||||
LLVMValueRef p_block_lit = llvm_alloca(p, block_lit_type, lb_alignof(block_lit_type), block_var_name);
|
||||
result.value = p_block_lit;
|
||||
|
||||
// Initialize it
|
||||
LLVMValueRef f_isa = LLVMBuildStructGEP2(p->builder, block_lit_type, p_block_lit, 0, "isa");
|
||||
LLVMValueRef f_flags = LLVMBuildStructGEP2(p->builder, block_lit_type, p_block_lit, 1, "flags");
|
||||
LLVMValueRef f_reserved = LLVMBuildStructGEP2(p->builder, block_lit_type, p_block_lit, 2, "reserved");
|
||||
LLVMValueRef f_invoke = LLVMBuildStructGEP2(p->builder, block_lit_type, p_block_lit, 3, "invoke");
|
||||
LLVMValueRef f_descriptor = LLVMBuildStructGEP2(p->builder, block_lit_type, p_block_lit, 4, "descriptor");
|
||||
|
||||
LLVMBuildStore(p->builder, isa_val.value, f_isa);
|
||||
LLVMBuildStore(p->builder, flags_val.value, f_flags);
|
||||
LLVMBuildStore(p->builder, reserved_val.value, f_reserved);
|
||||
LLVMBuildStore(p->builder, invoker_proc->value, f_invoke);
|
||||
LLVMBuildStore(p->builder, p_descriptor, f_descriptor);
|
||||
|
||||
// Store current context, if there is one
|
||||
if (user_proc.calling_convention == ProcCC_Odin) {
|
||||
LLVMValueRef f_context = LLVMBuildStructGEP2(p->builder, block_lit_type, p_block_lit, 5, "context");
|
||||
lbAddr p_current_context = lb_find_or_generate_context_ptr(p);
|
||||
|
||||
LLVMValueRef context_size = LLVMConstInt(LLVMInt64TypeInContext(m->ctx), (u64)lb_sizeof(lb_type(m, t_context)), false);
|
||||
LLVMBuildMemCpy(p->builder, f_context, lb_try_get_alignment(f_context, 1),
|
||||
p_current_context.addr.value, lb_try_get_alignment(p_current_context.addr.value, 1), context_size);
|
||||
}
|
||||
|
||||
// Store captured args into the block
|
||||
for (isize i = 0; i < captured_values.count; i++) {
|
||||
lbValue capture_arg = captured_values[i];
|
||||
|
||||
unsigned field_index = unsigned(capture_fields_offset + i);
|
||||
LLVMValueRef f_capture = LLVMBuildStructGEP2(p->builder, block_lit_type, p_block_lit, field_index, "capture_arg");
|
||||
|
||||
lbValue f_capture_val = {};
|
||||
f_capture_val.type = alloc_type_pointer(capture_arg.type);
|
||||
f_capture_val.value = f_capture;
|
||||
|
||||
lb_emit_store(p, f_capture_val, capture_arg);
|
||||
}
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
gb_internal lbValue lb_handle_objc_find_selector(lbProcedure *p, Ast *expr) {
|
||||
ast_node(ce, CallExpr, expr);
|
||||
|
||||
|
||||
Reference in New Issue
Block a user