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#ifndef CCMMC_HEADER_SYMBOL_TABLE_H
#define CCMMC_HEADER_SYMBOL_TABLE_H

#include "ast.h"

#include <stdbool.h>
#include <stdint.h>

#define CCMMC_SYMBOL_SCOPE_HASH_TABLE_SIZE 256

typedef enum CcmmcSymbolKind_enum {
    CCMMC_SYMBOL_KIND_VARIABLE,
    CCMMC_SYMBOL_KIND_TYPE,
    CCMMC_SYMBOL_KIND_FUNCTION
} CcmmcSymbolKind;

typedef struct CcmmcSymbolType_struct CcmmcSymbolType;
typedef struct CcmmcSymbolType_struct {
    CcmmcAstValueType type_base;
    size_t array_dimension;
    size_t *array_size;
    size_t param_count;
    CcmmcSymbolType *param_list;
} CcmmcSymbolType;

typedef struct CcmmcSymbolAttr_struct {
    uint64_t addr;
} CcmmcSymbolAttr;

typedef struct CcmmcSymbol_struct CcmmcSymbol;
typedef struct CcmmcSymbol_struct {
    CcmmcSymbolKind kind;
    CcmmcSymbolType type;
    CcmmcSymbolAttr attr;
    const char *name;
    CcmmcSymbol *next;
} CcmmcSymbol;

typedef struct CcmmcSymbolScope_struct CcmmcSymbolScope;
typedef struct CcmmcSymbolScope_struct {
    CcmmcSymbol *hash_table[CCMMC_SYMBOL_SCOPE_HASH_TABLE_SIZE];
    CcmmcSymbolScope *all_next;
    CcmmcSymbolScope *current_next;
} CcmmcSymbolScope;

typedef struct CcmmcSymbolTable_struct {
    CcmmcSymbolScope *all;
    CcmmcSymbolScope *all_last;
    CcmmcSymbolScope *current;
} CcmmcSymbolTable;

static inline bool ccmmc_symbol_is_scalar(CcmmcSymbol *symbol) {
    return symbol->type.array_dimension == 0;
}
static inline bool ccmmc_symbol_is_array(CcmmcSymbol *symbol) {
    return symbol->type.array_dimension != 0;
}

void             ccmmc_symbol_table_open_scope      (CcmmcSymbolTable *table);
void             ccmmc_symbol_table_close_scope     (CcmmcSymbolTable *table);
void             ccmmc_symbol_table_init            (CcmmcSymbolTable *table);
void             ccmmc_symbol_table_insert          (CcmmcSymbolTable *table,
                                                     const char *name,
                                                     CcmmcSymbolKind kind,
                                                     CcmmcSymbolType type);
CcmmcSymbol     *ccmmc_symbol_table_retrive         (CcmmcSymbolTable *table,
                                                     const char *name);

#endif
// vim: set sw=4 ts=4 sts=4 et: