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widl: Add a function to get the return type of a parsed function. 

This clarifies its use in code and makes it simpler to change the way 
functions are parsed into types.
This commit is contained in:
Rob Shearman 2008-04-02 12:55:34 +01:00 committed by Alexandre Julliard
parent f41e2339b7
commit a04b150839
8 changed files with 77 additions and 61 deletions
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24
tools/widl/client.c
View File

@ -128,8 +128,8 @@ static void write_function_stubs(type_t *iface, unsigned int *proc_offset)
}
}
write_type_decl_left(client, def->type);
if (needs_space_after(def->type))
write_type_decl_left(client, get_func_return_type(func));
if (needs_space_after(get_func_return_type(func)))
fprintf(client, " ");
write_prefix_name(client, prefix_client, def);
fprintf(client, "(\n");
@ -146,10 +146,10 @@ static void write_function_stubs(type_t *iface, unsigned int *proc_offset)
indent++;
/* declare return value '_RetVal' */
if (!is_void(def->type))
if (!is_void(get_func_return_type(func)))
{
print_client("");
write_type_decl_left(client, def->type);
write_type_decl_left(client, get_func_return_type(func));
fprintf(client, " _RetVal;\n");
}
@ -158,7 +158,7 @@ static void write_function_stubs(type_t *iface, unsigned int *proc_offset)
print_client("RPC_MESSAGE _RpcMessage;\n");
print_client("MIDL_STUB_MESSAGE _StubMsg;\n");
if (!is_void(def->type) && decl_indirect(def->type))
if (!is_void(get_func_return_type(func)) && decl_indirect(get_func_return_type(func)))
{
print_client("void *_p_%s = &%s;\n",
"_RetVal", "_RetVal");
@ -261,11 +261,11 @@ static void write_function_stubs(type_t *iface, unsigned int *proc_offset)
write_remoting_arguments(client, indent, func, PASS_OUT, PHASE_UNMARSHAL);
/* unmarshal return value */
if (!is_void(def->type))
if (!is_void(get_func_return_type(func)))
{
if (decl_indirect(def->type))
if (decl_indirect(get_func_return_type(func)))
print_client("MIDL_memset(&%s, 0, sizeof(%s));\n", "_RetVal", "_RetVal");
else if (is_ptr(def->type) || is_array(def->type))
else if (is_ptr(get_func_return_type(func)) || is_array(get_func_return_type(func)))
print_client("%s = 0;\n", "_RetVal");
write_remoting_arguments(client, indent, func, PASS_RETURN, PHASE_UNMARSHAL);
}
@ -274,10 +274,10 @@ static void write_function_stubs(type_t *iface, unsigned int *proc_offset)
if (func->args)
{
LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
*proc_offset += get_size_procformatstring_var(var);
*proc_offset += get_size_procformatstring_type(var->name, var->type, var->attrs);
}
if (!is_void(def->type))
*proc_offset += get_size_procformatstring_var(def);
if (!is_void(get_func_return_type(func)))
*proc_offset += get_size_procformatstring_type("return value", get_func_return_type(func), NULL);
else
*proc_offset += 2; /* FC_END and FC_PAD */
@ -312,7 +312,7 @@ static void write_function_stubs(type_t *iface, unsigned int *proc_offset)
/* emit return code */
if (!is_void(def->type))
if (!is_void(get_func_return_type(func)))
{
fprintf(client, "\n");
print_client("return _RetVal;\n");

16
tools/widl/header.c
View File

@ -599,7 +599,7 @@ int has_out_arg_or_return(const func_t *func)
{
const var_t *var;
if (!is_void(func->def->type))
if (!is_void(get_func_return_type(func)))
return 1;
if (!func->args)
@ -718,7 +718,7 @@ static void write_cpp_method_def(const type_t *iface)
if (!is_callas(def->attrs)) {
indent(header, 0);
fprintf(header, "virtual ");
write_type_decl_left(header, def->type);
write_type_decl_left(header, get_func_return_type(cur));
fprintf(header, " STDMETHODCALLTYPE ");
write_name(header, def);
fprintf(header, "(\n");
@ -743,7 +743,7 @@ static void do_write_c_method_def(const type_t *iface, const char *name)
const var_t *def = cur->def;
if (!is_callas(def->attrs)) {
indent(header, 0);
write_type_decl_left(header, def->type);
write_type_decl_left(header, get_func_return_type(cur));
fprintf(header, " (STDMETHODCALLTYPE *");
write_name(header, def);
fprintf(header, ")(\n");
@ -775,7 +775,7 @@ static void write_method_proto(const type_t *iface)
if (!is_local(def->attrs)) {
/* proxy prototype */
write_type_decl_left(header, def->type);
write_type_decl_left(header, get_func_return_type(cur));
fprintf(header, " CALLBACK %s_", iface->name);
write_name(header, def);
fprintf(header, "_Proxy(\n");
@ -815,14 +815,14 @@ void write_locals(FILE *fp, const type_t *iface, int body)
if (&m->entry != iface->funcs) {
const var_t *mdef = m->def;
/* proxy prototype - use local prototype */
write_type_decl_left(fp, mdef->type);
write_type_decl_left(fp, get_func_return_type(m));
fprintf(fp, " CALLBACK %s_", iface->name);
write_name(fp, mdef);
fprintf(fp, "_Proxy(\n");
write_args(fp, m->args, iface->name, 1, TRUE);
fprintf(fp, ")");
if (body) {
type_t *rt = mdef->type;
type_t *rt = get_func_return_type(m);
fprintf(fp, "\n{\n");
fprintf(fp, " %s\n", comment);
if (rt->name && strcmp(rt->name, "HRESULT") == 0)
@ -839,7 +839,7 @@ void write_locals(FILE *fp, const type_t *iface, int body)
else
fprintf(fp, ";\n");
/* stub prototype - use remotable prototype */
write_type_decl_left(fp, def->type);
write_type_decl_left(fp, get_func_return_type(cur));
fprintf(fp, " __RPC_STUB %s_", iface->name);
write_name(fp, mdef);
fprintf(fp, "_Stub(\n");
@ -862,7 +862,7 @@ static void write_function_proto(const type_t *iface, const func_t *fun, const c
var_t *def = fun->def;
/* FIXME: do we need to handle call_as? */
write_type_decl_left(header, def->type);
write_type_decl_left(header, get_func_return_type(fun));
fprintf(header, " ");
write_prefix_name(header, prefix, def);
fprintf(header, "(\n");

22
tools/widl/proxy.c
View File

@ -251,11 +251,11 @@ static void gen_proxy(type_t *iface, const func_t *cur, int idx,
unsigned int proc_offset)
{
var_t *def = cur->def;
int has_ret = !is_void(def->type);
int has_ret = !is_void(get_func_return_type(cur));
int has_full_pointer = is_full_pointer_function(cur);
indent = 0;
write_type_decl_left(proxy, def->type);
write_type_decl_left(proxy, get_func_return_type(cur));
print_proxy( " STDMETHODCALLTYPE %s_", iface->name);
write_name(proxy, def);
print_proxy( "_Proxy(\n");
@ -266,13 +266,13 @@ static void gen_proxy(type_t *iface, const func_t *cur, int idx,
/* local variables */
if (has_ret) {
print_proxy( "" );
write_type_decl_left(proxy, def->type);
write_type_decl_left(proxy, get_func_return_type(cur));
print_proxy( " _RetVal;\n");
}
print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n" );
if (has_ret) {
if (decl_indirect(def->type))
if (decl_indirect(get_func_return_type(cur)))
print_proxy("void *_p_%s = &%s;\n",
"_RetVal", "_RetVal");
}
@ -315,9 +315,9 @@ static void gen_proxy(type_t *iface, const func_t *cur, int idx,
if (has_ret)
{
if (decl_indirect(def->type))
if (decl_indirect(get_func_return_type(cur)))
print_proxy("MIDL_memset(&%s, 0, sizeof(%s));\n", "_RetVal", "_RetVal");
else if (is_ptr(def->type) || is_array(def->type))
else if (is_ptr(get_func_return_type(cur)) || is_array(get_func_return_type(cur)))
print_proxy("%s = 0;\n", "_RetVal");
write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_UNMARSHAL);
}
@ -359,7 +359,7 @@ static void gen_stub(type_t *iface, const func_t *cur, const char *cas,
{
var_t *def = cur->def;
const var_t *arg;
int has_ret = !is_void(def->type);
int has_ret = !is_void(get_func_return_type(cur));
int has_full_pointer = is_full_pointer_function(cur);
indent = 0;
@ -431,13 +431,17 @@ static void gen_stub(type_t *iface, const func_t *cur, const char *cas,
write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_BUFFERSIZE);
if (!is_void(get_func_return_type(cur)))
write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_BUFFERSIZE);
print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &_StubMsg);\n");
write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_MARSHAL);
fprintf(proxy, "\n");
if (has_ret)
print_phase_basetype(proxy, indent, PHASE_MARSHAL, PASS_RETURN, def, "_RetVal");
/* marshall the return value */
if (!is_void(get_func_return_type(cur)))
write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_MARSHAL);
indent--;
print_proxy("}\n");

6
tools/widl/server.c
View File

@ -164,7 +164,7 @@ static void write_function_stubs(type_t *iface, unsigned int *proc_offset)
assign_stub_out_args(server, indent, func);
/* Call the real server function */
if (!is_void(def->type))
if (!is_void(get_func_return_type(func)))
print_server("_RetVal = ");
else
print_server("");
@ -212,7 +212,7 @@ static void write_function_stubs(type_t *iface, unsigned int *proc_offset)
{
write_remoting_arguments(server, indent, func, PASS_OUT, PHASE_BUFFERSIZE);
if (!is_void(def->type))
if (!is_void(get_func_return_type(func)))
write_remoting_arguments(server, indent, func, PASS_RETURN, PHASE_BUFFERSIZE);
print_server("_pRpcMessage->BufferLength = _StubMsg.BufferLength;\n");
@ -231,7 +231,7 @@ static void write_function_stubs(type_t *iface, unsigned int *proc_offset)
write_remoting_arguments(server, indent, func, PASS_OUT, PHASE_MARSHAL);
/* marshall the return value */
if (!is_void(def->type))
if (!is_void(get_func_return_type(func)))
write_remoting_arguments(server, indent, func, PASS_RETURN, PHASE_MARSHAL);
indent--;

61
tools/widl/typegen.c
View File

@ -418,8 +418,8 @@ void write_parameters_init(FILE *file, int indent, const func_t *func)
{
const var_t *var;
if (!is_void(func->def->type))
write_var_init(file, indent, func->def->type, "_RetVal");
if (!is_void(get_func_return_type(func)))
write_var_init(file, indent, get_func_return_type(func), "_RetVal");
if (!func->args)
return;
@ -493,14 +493,16 @@ int decl_indirect(const type_t *t)
&& !is_array(t));
}
static size_t write_procformatstring_var(FILE *file, int indent,
const var_t *var, int is_return)
static size_t write_procformatstring_type(FILE *file, int indent,
const char *name,
const type_t *type,
const attr_list_t *attrs,
int is_return)
{
size_t size;
const type_t *type = var->type;
int is_in = is_attr(var->attrs, ATTR_IN);
int is_out = is_attr(var->attrs, ATTR_OUT);
int is_in = is_attr(attrs, ATTR_IN);
int is_out = is_attr(attrs, ATTR_OUT);
if (!is_in && !is_out) is_in = TRUE;
@ -523,7 +525,7 @@ static size_t write_procformatstring_var(FILE *file, int indent,
}
else
{
error("Unknown/unsupported type: %s (0x%02x)\n", var->name, type->type);
error("Unknown/unsupported type: %s (0x%02x)\n", name, type->type);
size = 0;
}
}
@ -573,18 +575,17 @@ void write_procformatstring(FILE *file, const ifref_list_t *ifaces, type_pred_t
if (func->args)
{
LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
write_procformatstring_var(file, indent, var, FALSE);
write_procformatstring_type(file, indent, var->name, var->type, var->attrs, FALSE);
}
/* emit return value data */
var = func->def;
if (is_void(var->type))
if (is_void(get_func_return_type(func)))
{
print_file(file, indent, "0x5b, /* FC_END */\n");
print_file(file, indent, "0x5c, /* FC_PAD */\n");
}
else
write_procformatstring_var(file, indent, var, TRUE);
write_procformatstring_type(file, indent, "return value", get_func_return_type(func), NULL, TRUE);
}
}
}
@ -948,7 +949,7 @@ size_t type_memsize(const type_t *t, unsigned int *align)
int is_full_pointer_function(const func_t *func)
{
const var_t *var;
if (type_has_full_pointer(func->def->type))
if (type_has_full_pointer(get_func_return_type(func)))
return TRUE;
if (!func->args)
return FALSE;
@ -2356,12 +2357,16 @@ static size_t process_tfs(FILE *file, const ifref_list_t *ifaces, type_pred_t pr
{
if (is_local(func->def->attrs)) continue;
if (!is_void(func->def->type))
update_tfsoff(func->def->type,
if (!is_void(get_func_return_type(func)))
{
var_t v = *func->def;
v.type = get_func_return_type(func);
update_tfsoff(get_func_return_type(func),
write_typeformatstring_var(
file, 2, NULL, func->def->type,
func->def, &typeformat_offset),
file, 2, NULL, get_func_return_type(func),
&v, &typeformat_offset),
file);
}
current_func = func;
if (func->args)
@ -2568,9 +2573,11 @@ static unsigned int get_function_buffer_size( const func_t *func, enum pass pass
}
}
if (pass == PASS_OUT && !is_void(func->def->type))
if (pass == PASS_OUT && !is_void(get_func_return_type(func)))
{
total_size += get_required_buffer_size(func->def, &alignment, PASS_RETURN);
var_t v = *func->def;
v.type = get_func_return_type(func);
total_size += get_required_buffer_size(&v, &alignment, PASS_RETURN);
total_size += alignment;
}
return total_size;
@ -3013,6 +3020,7 @@ void write_remoting_arguments(FILE *file, int indent, const func_t *func,
{
var_t var;
var = *func->def;
var.type = get_func_return_type(func);
var.name = xstrdup( "_RetVal" );
write_remoting_arg( file, indent, func, pass, phase, &var );
free( var.name );
@ -3028,9 +3036,9 @@ void write_remoting_arguments(FILE *file, int indent, const func_t *func,
}
size_t get_size_procformatstring_var(const var_t *var)
size_t get_size_procformatstring_type(const char *name, const type_t *type, const attr_list_t *attrs)
{
return write_procformatstring_var(NULL, 0, var, FALSE);
return write_procformatstring_type(NULL, 0, name, type, attrs, FALSE);
}
@ -3042,13 +3050,13 @@ size_t get_size_procformatstring_func(const func_t *func)
/* argument list size */
if (func->args)
LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
size += get_size_procformatstring_var(var);
size += get_size_procformatstring_type(var->name, var->type, var->attrs);
/* return value size */
if (is_void(func->def->type))
if (is_void(get_func_return_type(func)))
size += 2; /* FC_END and FC_PAD */
else
size += get_size_procformatstring_var(func->def);
size += get_size_procformatstring_type("return value", get_func_return_type(func), NULL);
return size;
}
@ -3180,14 +3188,13 @@ void declare_stub_args( FILE *file, int indent, const func_t *func )
{
int in_attr, out_attr;
int i = 0;
const var_t *def = func->def;
const var_t *var;
/* declare return value '_RetVal' */
if (!is_void(def->type))
if (!is_void(get_func_return_type(func)))
{
print_file(file, indent, "");
write_type_decl_left(file, def->type);
write_type_decl_left(file, get_func_return_type(func));
fprintf(file, " _RetVal;\n");
}

2
tools/widl/typegen.h
View File

@ -43,7 +43,7 @@ void write_procformatstring(FILE *file, const ifref_list_t *ifaces, type_pred_t
void write_typeformatstring(FILE *file, const ifref_list_t *ifaces, type_pred_t pred);
void print_phase_basetype(FILE *file, int indent, enum remoting_phase phase, enum pass pass, const var_t *var, const char *varname);
void write_remoting_arguments(FILE *file, int indent, const func_t *func, enum pass pass, enum remoting_phase phase);
size_t get_size_procformatstring_var(const var_t *var);
size_t get_size_procformatstring_type(const char *name, const type_t *type, const attr_list_t *attrs);
size_t get_size_procformatstring_func(const func_t *func);
size_t get_size_procformatstring(const ifref_list_t *ifaces, type_pred_t pred);
size_t get_size_typeformatstring(const ifref_list_t *ifaces, type_pred_t pred);

5
tools/widl/widltypes.h
View File

@ -330,4 +330,9 @@ int cant_be_null(const var_t *v);
int is_struct(unsigned char tc);
int is_union(unsigned char tc);
static inline type_t *get_func_return_type(const func_t *func)
{
return func->def->type;
}
#endif

2
tools/widl/write_msft.c
View File

@ -1421,7 +1421,7 @@ static HRESULT add_func_desc(msft_typeinfo_t* typeinfo, const func_t *func, int
/* fill out the basic type information */
typedata[0] = typedata_size | (index << 16);
encode_var(typeinfo->typelib, func->def->type, func->def, &typedata[1], NULL, NULL, &decoded_size);
encode_var(typeinfo->typelib, get_func_return_type(func), func->def, &typedata[1], NULL, NULL, &decoded_size);
typedata[2] = funcflags;
typedata[3] = ((52 /*sizeof(FUNCDESC)*/ + decoded_size) << 16) | typeinfo->typeinfo->cbSizeVft;
typedata[4] = (next_idx << 16) | (callconv << 8) | (invokekind << 3) | funckind;