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#pragma once
#include "common.h"
#include <stdio.h>
typedef enum {
TYPE_NONE,
TYPE_ANY, // This is a hack for builtins till we can cast types
TYPE_INT,
TYPE_CHAR,
TYPE_PTR,
TYPE_ARRAY,
TYPE_STRUCT,
TYPE_UNION,
} DataType;
typedef struct data_type_node {
DataType type;
struct data_type_node *ptr;
i64 array_size;
char *struct_name;
struct {
char **name;
struct data_type_node **type;
i64 *offset;
i64 num_fields;
i64 size;
} fields;
} Type;
Type *type_new(DataType type);
Type *type_new_ptr(DataType type);
i64 size_for_type(Type *type);
char *type_to_str(Type *type);
bool type_equals(Type *a, Type *b);
bool is_int_type(Type *type);
bool is_string_type(Type *type);
bool is_convertible(Type *from, Type *to);
bool is_struct_or_struct_ptr(Type *type);
// Returns the offset of the field in the struct.
i64 push_field(Type *type, char *field_name, Type *field_type);
i64 find_field_index(Type *type, char *field_name);
// Type checking / casting expressions to right types
typedef struct ast_node Node;
Node *handle_unary_expr_types(Node *, Token *);
Node *handle_binary_expr_types(Node *, Token *);
Node *decay_array_to_pointer(Node *, Token *);
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