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#pragma once
// Logic for defining and working with types
#include <printf.h>
#include <stdlib.h>
#include "ast.h"
#include "builtins/array.h"
typedef struct type_s type_t;
typedef struct arg_s {
const char *name;
type_t *type;
ast_t *default_val;
struct arg_s *next;
} arg_t;
#define ARG_LIST(...) ({\
arg_t *args[] = {__VA_ARGS__}; \
for (size_t i = 0; i < sizeof(args)/sizeof(args[0])-1; i++) \
args[i]->next = args[i+1]; \
args[0]; })
typedef struct tag_s {
const char *name;
int64_t tag_value;
type_t *type;
struct tag_s *next;
} tag_t;
typedef struct type_list_s {
type_t *type;
struct type_list_s *next;
} type_list_t;
struct type_s {
enum {
UnknownType,
AbortType,
VoidType,
MemoryType,
BoolType,
IntType,
NumType,
TextType,
ArrayType,
TableType,
FunctionType,
ClosureType,
PointerType,
StructType,
EnumType,
TypeInfoType,
ModuleType,
} tag;
union {
struct {
} UnknownType, AbortType, VoidType, MemoryType, BoolType;
struct {
int64_t bits;
} IntType;
struct {
int64_t bits;
} NumType;
struct {
const char *lang;
struct env_s *env;
} TextType;
struct {
type_t *item_type;
} ArrayType;
struct {
type_t *key_type, *value_type;
} TableType;
struct {
arg_t *args;
type_t *ret;
} FunctionType;
struct {
type_t *fn;
} ClosureType;
struct {
type_t *pointed;
bool is_optional:1, is_stack:1, is_readonly:1;
} PointerType;
struct {
const char *name;
arg_t *fields;
bool opaque;
struct env_s *env;
} StructType;
struct {
const char *name;
tag_t *tags;
bool opaque;
struct env_s *env;
} EnumType;
struct {
const char *name;
type_t *type;
struct env_s *env;
} TypeInfoType;
struct {
const char *name;
} ModuleType;
} __data;
};
#define Type(typetag, ...) new(type_t, .tag=typetag, .__data.typetag={__VA_ARGS__})
#define INT_TYPE Type(IntType, .bits=64)
#define NUM_TYPE Type(NumType, .bits=64)
int printf_pointer_size(const struct printf_info *info, size_t n, int argtypes[n], int size[n]);
int printf_type(FILE *stream, const struct printf_info *info, const void *const args[]);
CORD type_to_cord(type_t *t);
bool type_eq(type_t *a, type_t *b);
bool type_is_a(type_t *t, type_t *req);
type_t *type_or_type(type_t *a, type_t *b);
type_t *value_type(type_t *a);
typedef enum {NUM_PRECISION_EQUAL, NUM_PRECISION_LESS, NUM_PRECISION_MORE, NUM_PRECISION_INCOMPARABLE} precision_cmp_e;
precision_cmp_e compare_precision(type_t *a, type_t *b);
bool has_heap_memory(type_t *t);
bool has_stack_memory(type_t *t);
bool can_promote(type_t *actual, type_t *needed);
bool can_leave_uninitialized(type_t *t);
bool can_have_cycles(type_t *t);
type_t *replace_type(type_t *t, type_t *target, type_t *replacement);
size_t type_size(type_t *t);
size_t type_align(type_t *t);
type_t *iteration_key_type(type_t *iterable);
type_t *iteration_value_type(type_t *iterable);
type_t *get_field_type(type_t *t, const char *field_name);
// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0
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