Danila Fedorin
cf3136a237
This allows for values to be "cast" and have a different type, while still referencing the same data.
47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
#ifndef LIBABACUS_VALUE_H
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#define LIBABACUS_VALUE_H
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#include "refcount.h"
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#include "result.h"
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/**
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* A struct that represents a value.
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*/
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struct libab_value_s {
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/**
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* The type of the value.
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*/
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libab_ref type;
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/**
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* The data that is specific to this value.
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*/
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libab_ref data;
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};
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typedef struct libab_value_s libab_value;
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/**
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* Initializes a new value with the given reference counted data
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* and the given type.
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* @param value the value to initialize.
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* @param data the data for this value. Its refcount is decreased when the value is freed.
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* @param type the type of this value.
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*/
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void libab_value_init_ref(libab_value* value, libab_ref* data, libab_ref* type);
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/**
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* Initializes a new value with the given raw allocated data, and a type,
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* whose basetype's free function is used to release the data when the value is freed.
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* @param value the value to initialize.
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* @param data the data this value holds.
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* @param type the type of this value.
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* @return the result of any necessary allocations.
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*/
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libab_result libab_value_init_raw(libab_value* value, void* data, libab_ref* type);
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/**
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* Frees the given value.
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* @param value the value to free.
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*/
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void libab_value_free(libab_value* value);
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#endif
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