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mie: implement generating extern global data items

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This commit is contained in:
max 🍓
2025-04-17 21:41:58 +01:00
parent 51e07522e8
commit 6d8809d325
2 changed files with 62 additions and 1 deletions
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48
mie/data.c Normal file
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@@ -0,0 +1,48 @@
#include <blue/object/string.h>
#include <mie/data.h>
#include <mie/type.h>
#include <stdlib.h>
#include <string.h>
/* TODO combine this with the ptr_type defined in instr.c */
static struct mie_type ptr_type = {};
static void init_ptr_type(struct mie_type *out)
{
mie_value_init(&out->t_base, MIE_VALUE_TYPE);
out->t_id = MIE_TYPE_PTR;
out->t_width = sizeof(uintptr_t) * 8;
}
struct mie_data *mie_data_create_extern_global(
struct mie_type *type, const char *ident)
{
struct mie_data *data = malloc(sizeof *data);
if (!data) {
return NULL;
}
memset(data, 0x0, sizeof *data);
mie_value_init(&data->d_base, MIE_VALUE_DATA);
data->d_type = MIE_DATA_EXTERN_GLOBAL;
data->d_extern_global.g_type = type;
data->d_base.v_name.n_str = b_strdup(ident);
return data;
}
static struct mie_type *get_type(struct mie_value *v)
{
if (!ptr_type.t_id) {
init_ptr_type(&ptr_type);
}
return &ptr_type;
}
const struct mie_value_type data_value_type = {
.t_id = MIE_VALUE_DATA,
.t_get_type = get_type,
};

15
mie/include/mie/data.h
View File

@@ -3,6 +3,8 @@
#include <mie/value.h>
#define MIE_DATA(p) ((struct mie_data *)(p))
enum mie_data_type {
MIE_DATA_NONE = 0,
MIE_DATA_EXTERN_GLOBAL,
@@ -12,7 +14,18 @@ enum mie_data_type {
struct mie_data {
struct mie_value d_base;
enum mie_data_type d_type;
struct mie_value *d_data;
union {
struct {
struct mie_value *c_value;
} d_const;
struct {
struct mie_type *g_type;
} d_extern_global;
};
};
extern struct mie_data *mie_data_create_extern_global(
struct mie_type *type, const char *ident);
#endif