int
CFCType_equals(CFCType *self, CFCType *other) {
if ((CFCType_const(self) ^ CFCType_const(other))
|| (CFCType_nullable(self) ^ CFCType_nullable(other))
|| (CFCType_is_void(self) ^ CFCType_is_void(other))
|| (CFCType_is_object(self) ^ CFCType_is_object(other))
|| (CFCType_is_primitive(self) ^ CFCType_is_primitive(other))
|| (CFCType_is_integer(self) ^ CFCType_is_integer(other))
|| (CFCType_is_floating(self) ^ CFCType_is_floating(other))
|| (CFCType_is_va_list(self) ^ CFCType_is_va_list(other))
|| (CFCType_is_arbitrary(self) ^ CFCType_is_arbitrary(other))
|| (CFCType_is_composite(self) ^ CFCType_is_composite(other))
|| (CFCType_incremented(self) ^ CFCType_incremented(other))
|| (CFCType_decremented(self) ^ CFCType_decremented(other))
|| !!self->child ^ !!other->child
|| !!self->array ^ !!other->array
) {
return false;
}
if (self->indirection != other->indirection) { return false; }
if (strcmp(self->specifier, other->specifier) != 0) { return false; }
if (self->child) {
if (!CFCType_equals(self->child, other->child)) { return false; }
}
if (self->array) {
if (strcmp(self->array, other->array) != 0) { return false; }
}
return true;
}
static void
S_run_void_tests(CFCTest *test) {
CFCParser *parser = CFCParser_new();
{
CFCType *type = CFCType_new_void(false);
STR_EQ(test, CFCType_get_specifier(type), "void", "get_specifier");
STR_EQ(test, CFCType_to_c(type), "void", "to_c");
OK(test, CFCType_is_void(type), "is_void");
CFCBase_decref((CFCBase*)type);
}
{
CFCType *type = CFCType_new_void(true);
STR_EQ(test, CFCType_to_c(type), "const void",
"'const' in C representation");
CFCBase_decref((CFCBase*)type);
}
{
CFCType *type = CFCTest_parse_type(test, parser, "void");
OK(test, CFCType_is_void(type), "void is_void");
CFCBase_decref((CFCBase*)type);
}
{
CFCType *type = CFCTest_parse_type(test, parser, "const void");
OK(test, CFCType_is_void(type), "const void is_void");
OK(test, CFCType_const(type), "const void is const");
CFCBase_decref((CFCBase*)type);
}
CFCBase_decref((CFCBase*)parser);
}
char*
CFCPerlMethod_callback_def(CFCMethod *method) {
CFCType *return_type = CFCMethod_get_return_type(method);
char *start = S_callback_start(method);
char *callback_def = NULL;
char *refcount_mods = S_callback_refcount_mods(method);
if (!start) {
// Can't map vars, because there's at least one type in the argument
// list we don't yet support. Return a callback wrapper that throws
// an error error.
callback_def = S_invalid_callback_def(method);
}
else if (CFCType_is_void(return_type)) {
callback_def = S_void_callback_def(method, start, refcount_mods);
}
else if (CFCType_is_object(return_type)) {
callback_def = S_obj_callback_def(method, start, refcount_mods);
}
else if (CFCType_is_integer(return_type)
|| CFCType_is_floating(return_type)
) {
callback_def = S_primitive_callback_def(method, start, refcount_mods);
}
else {
// Can't map return type.
callback_def = S_invalid_callback_def(method);
}
FREEMEM(start);
FREEMEM(refcount_mods);
return callback_def;
}
char*
CFCBindMeth_callback_def(CFCMethod *method) {
CFCType *return_type = CFCMethod_get_return_type(method);
char *params = S_callback_params(method);
char *callback_def = NULL;
char *refcount_mods = S_callback_refcount_mods(method);
if (!params) {
// Can't map vars, because there's at least one type in the argument
// list we don't yet support. Return a callback wrapper that throws
// an error error.
callback_def = S_invalid_callback_def(method);
}
else if (CFCType_is_void(return_type)) {
callback_def = S_void_callback_def(method, params, refcount_mods);
}
else if (CFCType_is_object(return_type)) {
callback_def = S_obj_callback_def(method, params, refcount_mods);
}
else {
callback_def = S_primitive_callback_def(method, params, refcount_mods);
}
FREEMEM(params);
FREEMEM(refcount_mods);
return callback_def;
}
static char*
S_gen_code_sample(CFCCallable *func, const char *alias, CFCClass *klass,
int is_constructor) {
char *prologue = CFCUtil_sprintf("");
char *class_var_name = S_camel_to_lower(CFCClass_get_struct_sym(klass));
CFCType *ret_type = CFCCallable_get_return_type(func);
if (!CFCType_is_void(ret_type)) {
char *ret_name = S_perl_var_name(ret_type, is_constructor);
if (!is_constructor && strcmp(ret_name, class_var_name) == 0) {
// Return type equals `klass`. Use a generic variable name
// to avoid confusing code samples like
// `my $string = $string->trim`.
prologue = CFCUtil_cat(prologue, "my $result = ", NULL);
}
else {
prologue = CFCUtil_cat(prologue, "my $", ret_name, " = ", NULL);
}
FREEMEM(ret_name);
}
if (is_constructor) {
const char *invocant = CFCClass_get_name(klass);
prologue = CFCUtil_cat(prologue, invocant, NULL);
}
else {
prologue = CFCUtil_cat(prologue, "$", class_var_name, NULL);
}
prologue = CFCUtil_cat(prologue, "->", alias, NULL);
CFCParamList *param_list = CFCCallable_get_param_list(func);
int num_vars = CFCParamList_num_vars(param_list);
int start = is_constructor ? 0 : 1;
char *sample = NULL;
if (start == num_vars) {
sample = CFCUtil_sprintf(" %s();\n", prologue);
}
else if (is_constructor || num_vars - start >= 2) {
sample = S_gen_labeled_sample(prologue, param_list, start);
}
else {
sample = S_gen_positional_sample(prologue, param_list, start);
}
FREEMEM(class_var_name);
FREEMEM(prologue);
return sample;
}
static char*
S_maybe_unreachable(CFCType *return_type) {
char *return_statement;
if (CFCType_is_void(return_type)) {
return_statement = CFCUtil_strdup("");
}
else {
const char *ret_type_str = CFCType_to_c(return_type);
char pattern[] = "\n CFISH_UNREACHABLE_RETURN(%s);";
return_statement = CFCUtil_sprintf(pattern, ret_type_str);
}
return return_statement;
}
char*
CFCBindMeth_abstract_method_def(CFCMethod *method, CFCClass *klass) {
CFCType *ret_type = CFCMethod_get_return_type(method);
const char *ret_type_str = CFCType_to_c(ret_type);
CFCType *type = CFCMethod_self_type(method);
const char *class_var = CFCType_get_class_var(type);
const char *meth_name = CFCMethod_get_name(method);
CFCParamList *param_list = CFCMethod_get_param_list(method);
const char *params = CFCParamList_to_c(param_list);
CFCVariable **vars = CFCParamList_get_variables(param_list);
const char *invocant = CFCVariable_get_name(vars[0]);
// All variables other than the invocant are unused, and the return is
// unreachable.
char *unused = CFCUtil_strdup("");
for (int i = 1; vars[i] != NULL; i++) {
const char *var_name = CFCVariable_get_name(vars[i]);
size_t size = strlen(unused) + strlen(var_name) + 80;
unused = (char*)REALLOCATE(unused, size);
strcat(unused, "\n CFISH_UNUSED_VAR(");
strcat(unused, var_name);
strcat(unused, ");");
}
char *unreachable;
if (!CFCType_is_void(ret_type)) {
unreachable = CFCUtil_sprintf(" CFISH_UNREACHABLE_RETURN(%s);\n",
ret_type_str);
}
else {
unreachable = CFCUtil_strdup("");
}
char *full_func_sym = CFCMethod_imp_func(method, klass);
char pattern[] =
"%s\n"
"%s(%s) {\n"
"%s"
" cfish_Err_abstract_method_call((cfish_Obj*)%s, %s, \"%s\");\n"
"%s"
"}\n";
char *abstract_def
= CFCUtil_sprintf(pattern, ret_type_str, full_func_sym, params,
unused, invocant, class_var, meth_name,
unreachable);
FREEMEM(unused);
FREEMEM(unreachable);
FREEMEM(full_func_sym);
return abstract_def;
}
static char*
S_maybe_unreachable(CFCType *return_type) {
char *return_statement;
if (CFCType_is_void(return_type)) {
return_statement = CFCUtil_strdup("");
}
else {
const char *ret_type_str = CFCType_to_c(return_type);
return_statement = (char*)MALLOCATE(strlen(ret_type_str) + 60);
sprintf(return_statement, "\n CHY_UNREACHABLE_RETURN(%s);",
ret_type_str);
}
return return_statement;
}
char*
CFCPyMethod_callback_def(CFCMethod *method, CFCClass *invoker) {
CFCParamList *param_list = CFCMethod_get_param_list(method);
CFCVariable **vars = CFCParamList_get_variables(param_list);
CFCType *return_type = CFCMethod_get_return_type(method);
const char *ret_type_str = CFCType_to_c(return_type);
const char *params = CFCParamList_to_c(param_list);
char *override_sym = CFCMethod_full_override_sym(method, invoker);
char *content;
if (CFCMethod_can_be_bound(method)) {
char *py_args = S_build_py_args(param_list);
char *invocation = S_build_pymeth_invocation(method);
char *refcount_mods = S_callback_refcount_mods(param_list);
const char *maybe_return = CFCType_is_void(return_type)
? ""
: " return cfcb_RESULT;\n";
const char pattern[] =
"%s\n"
"%s(%s) {\n"
"%s\n"
"%s\n"
"%s"
"%s"
"}\n";
content = CFCUtil_sprintf(pattern, ret_type_str, override_sym, params,
py_args, invocation, refcount_mods,
maybe_return);
}
else {
char *unused = S_build_unused_vars(vars);
char *unreachable = S_maybe_unreachable(return_type);
char *meth_sym = CFCMethod_full_method_sym(method, invoker);
const char pattern[] =
"%s\n"
"%s(%s) {%s\n"
" CFISH_THROW(CFISH_ERR, \"Can't override %s via binding\");%s\n"
"}\n";
content = CFCUtil_sprintf(pattern, ret_type_str, override_sym,
params, unused, meth_sym, unreachable);
FREEMEM(meth_sym);
FREEMEM(unused);
FREEMEM(unreachable);
}
FREEMEM(override_sym);
return content;
}
static char*
S_virtual_method_def(CFCMethod *method, CFCClass *klass) {
CFCParamList *param_list = CFCMethod_get_param_list(method);
const char *PREFIX = CFCClass_get_PREFIX(klass);
const char *invoker_struct = CFCClass_full_struct_sym(klass);
char *full_meth_sym = CFCMethod_full_method_sym(method, klass);
char *full_offset_sym = CFCMethod_full_offset_sym(method, klass);
char *full_typedef = CFCMethod_full_typedef(method, klass);
// Prepare parameter lists, minus invoker. The invoker gets forced to
// "self" later.
if (CFCParamList_variadic(param_list)) {
CFCUtil_die("Variadic methods not supported");
}
const char *arg_names_minus_invoker = CFCParamList_name_list(param_list);
const char *params_minus_invoker = CFCParamList_to_c(param_list);
while (*arg_names_minus_invoker && *arg_names_minus_invoker != ',') {
arg_names_minus_invoker++;
}
while (*params_minus_invoker && *params_minus_invoker != ',') {
params_minus_invoker++;
}
// Prepare a return statement... or not.
CFCType *return_type = CFCMethod_get_return_type(method);
const char *ret_type_str = CFCType_to_c(return_type);
const char *maybe_return = CFCType_is_void(return_type) ? "" : "return ";
const char pattern[] =
"extern %sVISIBLE size_t %s;\n"
"static CFISH_INLINE %s\n"
"%s(%s *self%s) {\n"
" const %s method = (%s)cfish_obj_method(self, %s);\n"
" %smethod(self%s);\n"
"}\n";
char *method_def
= CFCUtil_sprintf(pattern, PREFIX, full_offset_sym, ret_type_str,
full_meth_sym, invoker_struct, params_minus_invoker,
full_typedef, full_typedef, full_offset_sym,
maybe_return, arg_names_minus_invoker);
FREEMEM(full_offset_sym);
FREEMEM(full_meth_sym);
FREEMEM(full_typedef);
return method_def;
}
char*
CFCPyMethod_wrapper(CFCMethod *method, CFCClass *invoker) {
CFCParamList *param_list = CFCMethod_get_param_list(method);
CFCType *return_type = CFCMethod_get_return_type(method);
char *meth_sym = CFCMethod_full_method_sym(method, invoker);
char *meth_top = S_meth_top(method);
char *increfs = S_gen_arg_increfs(param_list, 1);
char *decrefs = S_gen_decrefs(param_list, 1);
char *invocation = S_gen_meth_invocation(method, invoker);
char *ret;
if (CFCType_is_void(return_type)) {
ret = CFCUtil_strdup(" Py_RETURN_NONE;\n");
}
else if (CFCType_incremented(return_type)) {
ret = CFCUtil_strdup(" return CFBind_cfish_to_py_zeroref((cfish_Obj*)retvalCF);\n");
}
else {
char *conv = CFCPyTypeMap_c_to_py(return_type, "retvalCF");
ret = CFCUtil_sprintf(" return %s;\n", conv);
FREEMEM(conv);
}
char pattern[] =
"static PyObject*\n"
"S_%s%s"
"%s" // increfs
"%s" // invocation
"%s" // decrefs
" if (CFBind_migrate_cferr()) {\n"
" return NULL;\n"
" }\n"
"%s" // ret
"}\n"
;
char *wrapper = CFCUtil_sprintf(pattern, meth_sym, meth_top,
increfs, invocation, decrefs, ret);
FREEMEM(ret);
FREEMEM(invocation);
FREEMEM(decrefs);
FREEMEM(increfs);
FREEMEM(meth_sym);
FREEMEM(meth_top);
return wrapper;
}
int
CFCCallable_can_be_bound(CFCCallable *self) {
// Test whether parameters can be mapped automatically.
CFCVariable **arg_vars = CFCParamList_get_variables(self->param_list);
for (size_t i = 0; arg_vars[i] != NULL; i++) {
CFCType *type = CFCVariable_get_type(arg_vars[i]);
if (!CFCType_is_object(type) && !CFCType_is_primitive(type)) {
return false;
}
}
// Test whether return type can be mapped automatically.
if (!CFCType_is_void(self->return_type)
&& !CFCType_is_object(self->return_type)
&& !CFCType_is_primitive(self->return_type)
) {
return false;
}
return true;
}
static char*
S_build_pymeth_invocation(CFCMethod *method) {
CFCType *return_type = CFCMethod_get_return_type(method);
const char *micro_sym = CFCSymbol_get_name((CFCSymbol*)method);
char *invocation = NULL;
const char *ret_type_str = CFCType_to_c(return_type);
if (CFCType_is_void(return_type)) {
const char pattern[] =
" CALL_PYMETH_VOID((PyObject*)self, \"%s\", cfcb_ARGS);";
invocation = CFCUtil_sprintf(pattern, micro_sym);
}
else if (CFCType_is_object(return_type)) {
const char *nullable
= CFCType_nullable(return_type) ? "true" : "false";
const char *ret_class = CFCType_get_class_var(return_type);
const char pattern[] =
" %s cfcb_RESULT = (%s)CALL_PYMETH_OBJ((PyObject*)self, \"%s\", cfcb_ARGS, %s, %s);";
invocation = CFCUtil_sprintf(pattern, ret_type_str, ret_type_str, micro_sym,
ret_class, nullable);
}
else if (CFCType_is_primitive(return_type)) {
char type_upcase[64];
if (strlen(ret_type_str) > 63) {
CFCUtil_die("Unexpectedly long type name: %s", ret_type_str);
}
for (int i = 0, max = strlen(ret_type_str) + 1; i < max; i++) {
type_upcase[i] = toupper(ret_type_str[i]);
}
const char pattern[] =
" %s cfcb_RESULT = CALL_PYMETH_%s((PyObject*)self, \"%s\", cfcb_ARGS);";
invocation = CFCUtil_sprintf(pattern, ret_type_str, type_upcase,
micro_sym);
}
else {
CFCUtil_die("Unexpected return type: %s", CFCType_to_c(return_type));
}
return invocation;
}
static char*
S_gen_meth_invocation(CFCMethod *method, CFCClass *invoker) {
CFCParamList *param_list = CFCMethod_get_param_list(method);
char *full_meth = CFCMethod_full_method_sym(method, invoker);
char *meth_type_c = CFCMethod_full_typedef(method, invoker);
const char *class_var = CFCClass_full_class_var(invoker);
char *first_arg
= CFCUtil_sprintf("(%s*)self", CFCClass_full_struct_sym(invoker));
char *arg_list = S_gen_arg_list(param_list, first_arg);
CFCType *return_type = CFCMethod_get_return_type(method);
char *maybe_declare;
const char *maybe_assign;
if (CFCType_is_void(return_type)) {
maybe_declare = CFCUtil_strdup("");
maybe_assign = "";
}
else {
maybe_declare = CFCUtil_sprintf(" %s retvalCF;\n",
CFCType_to_c(return_type));
maybe_assign = "retvalCF = ";
}
const char pattern[] =
"%s"
" %s method = CFISH_METHOD_PTR(%s, %s);\n"
" CFBIND_TRY(%smethod(%s));\n"
;
char *content
= CFCUtil_sprintf(pattern, maybe_declare, meth_type_c, class_var,
full_meth, maybe_assign, arg_list);
FREEMEM(arg_list);
FREEMEM(first_arg);
FREEMEM(maybe_declare);
FREEMEM(full_meth);
FREEMEM(meth_type_c);
return content;
}
static char*
S_xsub_body(CFCPerlMethod *self) {
CFCMethod *method = self->method;
CFCParamList *param_list = CFCMethod_get_param_list(method);
CFCVariable **arg_vars = CFCParamList_get_variables(param_list);
const char *name_list = CFCParamList_name_list(param_list);
char *body = CFCUtil_strdup("");
CFCParcel *parcel = CFCMethod_get_parcel(method);
const char *class_name = CFCMethod_get_class_name(method);
CFCClass *klass = CFCClass_fetch_singleton(parcel, class_name);
if (!klass) {
CFCUtil_die("Can't find a CFCClass for '%s'", class_name);
}
// Extract the method function pointer.
char *full_typedef = CFCMethod_full_typedef(method, klass);
char *full_meth = CFCMethod_full_method_sym(method, klass);
char *method_ptr
= CFCUtil_sprintf("%s method = CFISH_METHOD_PTR(%s, %s);\n ",
full_typedef, CFCClass_full_vtable_var(klass),
full_meth);
body = CFCUtil_cat(body, method_ptr, NULL);
FREEMEM(full_typedef);
FREEMEM(full_meth);
FREEMEM(method_ptr);
// Compensate for functions which eat refcounts.
for (int i = 0; arg_vars[i] != NULL; i++) {
CFCVariable *var = arg_vars[i];
CFCType *type = CFCVariable_get_type(var);
if (CFCType_is_object(type) && CFCType_decremented(type)) {
body = CFCUtil_cat(body, "CFISH_INCREF(",
CFCVariable_micro_sym(var), ");\n ", NULL);
}
}
if (CFCType_is_void(CFCMethod_get_return_type(method))) {
// Invoke method in void context.
body = CFCUtil_cat(body, "method(", name_list,
");\n XSRETURN(0);", NULL);
}
else {
// Return a value for method invoked in a scalar context.
CFCType *return_type = CFCMethod_get_return_type(method);
const char *type_str = CFCType_to_c(return_type);
char *assignment = CFCPerlTypeMap_to_perl(return_type, "retval");
if (!assignment) {
CFCUtil_die("Can't find typemap for '%s'", type_str);
}
body = CFCUtil_cat(body, type_str, " retval = method(",
name_list, ");\n ST(0) = ", assignment, ";",
NULL);
if (CFCType_is_object(return_type)
&& CFCType_incremented(return_type)
) {
body = CFCUtil_cat(body, "\n CFISH_DECREF(retval);", NULL);
}
body = CFCUtil_cat(body, "\n sv_2mortal( ST(0) );\n XSRETURN(1);",
NULL);
FREEMEM(assignment);
}
return body;
}
static char*
S_method_def(CFCMethod *method, CFCClass *klass, int optimized_final_meth) {
CFCParamList *param_list = CFCMethod_get_param_list(method);
const char *PREFIX = CFCClass_get_PREFIX(klass);
const char *invoker_struct = CFCClass_full_struct_sym(klass);
const char *self_name = CFCParamList_param_name(param_list, 0);
char *full_meth_sym = CFCMethod_full_method_sym(method, klass);
char *full_offset_sym = CFCMethod_full_offset_sym(method, klass);
char *full_typedef = CFCMethod_full_typedef(method, klass);
char *full_imp_sym = CFCMethod_imp_func(method, klass);
// Prepare parameter lists, minus the type of the invoker.
if (CFCParamList_variadic(param_list)) {
CFCUtil_die("Variadic methods not supported");
}
const char *arg_names = CFCParamList_name_list(param_list);
const char *params_end = CFCParamList_to_c(param_list);
while (*params_end && *params_end != '*') {
params_end++;
}
// Prepare a return statement... or not.
CFCType *return_type = CFCMethod_get_return_type(method);
const char *ret_type_str = CFCType_to_c(return_type);
const char *maybe_return = CFCType_is_void(return_type) ? "" : "return ";
const char innards_pattern[] =
" const %s method = (%s)cfish_obj_method(%s, %s);\n"
" %smethod(%s);\n"
;
char *innards = CFCUtil_sprintf(innards_pattern, full_typedef,
full_typedef, self_name, full_offset_sym,
maybe_return, arg_names);
if (optimized_final_meth) {
CFCParcel *parcel = CFCClass_get_parcel(klass);
const char *privacy_sym = CFCParcel_get_privacy_sym(parcel);
char *invoker_cast = CFCUtil_strdup("");
if (!CFCMethod_is_fresh(method, klass)) {
CFCType *self_type = CFCMethod_self_type(method);
invoker_cast = CFCUtil_cat(invoker_cast, "(",
CFCType_to_c(self_type), ")", NULL);
}
const char pattern[] =
"#ifdef %s\n"
" %s%s(%s%s);\n"
"#else\n"
"%s"
"#endif\n"
;
char *temp = CFCUtil_sprintf(pattern, privacy_sym,
maybe_return, full_imp_sym,
invoker_cast, arg_names, innards);
FREEMEM(innards);
innards = temp;
FREEMEM(invoker_cast);
}
const char pattern[] =
"extern %sVISIBLE uint32_t %s;\n"
"static CFISH_INLINE %s\n"
"%s(%s%s) {\n"
"%s"
"}\n";
char *method_def
= CFCUtil_sprintf(pattern, PREFIX, full_offset_sym, ret_type_str,
full_meth_sym, invoker_struct, params_end, innards);
FREEMEM(innards);
FREEMEM(full_imp_sym);
FREEMEM(full_offset_sym);
FREEMEM(full_meth_sym);
FREEMEM(full_typedef);
return method_def;
}
static char*
S_virtual_method_def(CFCMethod *method, CFCClass *klass) {
CFCParamList *param_list = CFCMethod_get_param_list(method);
const char *invoker_struct = CFCClass_full_struct_sym(klass);
const char *common_struct
= CFCType_get_specifier(CFCMethod_self_type(method));
const char *visibility = CFCClass_included(klass)
? "CHY_IMPORT" : "CHY_EXPORT";
size_t meth_sym_size = CFCMethod_full_method_sym(method, klass, NULL, 0);
char *full_meth_sym = (char*)MALLOCATE(meth_sym_size);
CFCMethod_full_method_sym(method, klass, full_meth_sym, meth_sym_size);
size_t offset_sym_size = CFCMethod_full_offset_sym(method, klass, NULL, 0);
char *full_offset_sym = (char*)MALLOCATE(offset_sym_size);
CFCMethod_full_offset_sym(method, klass, full_offset_sym, offset_sym_size);
size_t full_typedef_size = CFCMethod_full_typedef(method, klass, NULL, 0);
char *full_typedef = (char*)MALLOCATE(full_typedef_size);
CFCMethod_full_typedef(method, klass, full_typedef, full_typedef_size);
// Prepare parameter lists, minus invoker. The invoker gets forced to
// "self" later.
const char *arg_names_minus_invoker = CFCParamList_name_list(param_list);
const char *params_minus_invoker = CFCParamList_to_c(param_list);
while (*arg_names_minus_invoker && *arg_names_minus_invoker != ',') {
arg_names_minus_invoker++;
}
while (*params_minus_invoker && *params_minus_invoker != ',') {
params_minus_invoker++;
}
// Prepare a return statement... or not.
CFCType *return_type = CFCMethod_get_return_type(method);
const char *ret_type_str = CFCType_to_c(return_type);
const char *maybe_return = CFCType_is_void(return_type) ? "" : "return ";
const char pattern[] =
"extern %s size_t %s;\n"
"static CHY_INLINE %s\n"
"%s(const %s *self%s) {\n"
" char *const method_address = *(char**)self + %s;\n"
" const %s method = *((%s*)method_address);\n"
" %smethod((%s*)self%s);\n"
"}\n";
size_t size = sizeof(pattern)
+ strlen(visibility)
+ strlen(full_offset_sym)
+ strlen(ret_type_str)
+ strlen(full_meth_sym)
+ strlen(invoker_struct)
+ strlen(params_minus_invoker)
+ strlen(full_offset_sym)
+ strlen(full_typedef)
+ strlen(full_typedef)
+ strlen(maybe_return)
+ strlen(common_struct)
+ strlen(arg_names_minus_invoker)
+ 40;
char *method_def = (char*)MALLOCATE(size);
sprintf(method_def, pattern, visibility, full_offset_sym, ret_type_str,
full_meth_sym, invoker_struct, params_minus_invoker,
full_offset_sym, full_typedef, full_typedef, maybe_return,
common_struct, arg_names_minus_invoker);
FREEMEM(full_offset_sym);
FREEMEM(full_meth_sym);
FREEMEM(full_typedef);
return method_def;
}
