libabacus/include/util.h

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#ifndef LIBABACUS_UTIL_H
#define LIBABACUS_UTIL_H
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#include "function_list.h"
#include "libds.h"
#include "liblex.h"
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#include "parsetype.h"
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#include "result.h"
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#include "table.h"
#include <string.h>
/**
* Converts a result code from liblex to libabacus.
* @param to_convert the code to convert.
* @return the libabacus equivalent of the error code.
*/
libab_result libab_convert_lex_result(liblex_result to_convert);
/**
* Converts a result code from libds to libabacus.
* @param to_convert the code to convert.
* @return the libabacus equivalent of the error code.
*/
libab_result libab_convert_ds_result(libds_result to_convert);
/**
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* Copies a range of the given string into a new, null-terminated string
* allocated on the heap.
* @param destination the pointer to populate with the newly created string.
* @param source the source from which to pull character information from.
* @param from the index (inclusive) at which to begin copying.
* @param to the index (exclusive) at which to end copying.
* @return the result of the operation.
*/
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libab_result libab_copy_string_range(char** destination, const char* source,
size_t from, size_t to);
/**
* Copies the given string, starting at 0 and copying length bytes.
* @param destination the pointer to populate with the newly created string.
* @param source to source string to copy.
* @param length the number of bytes to copy.
* @return the result of the operation.
*/
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libab_result libab_copy_string_size(char** destination, const char* source,
size_t length);
/**
* Copies the entire string into a null-terminated string allocated
* on the heap.
* @param destination the pointer to populate with the newly allocated string.
* @param source the source string to copy.
* @return the result of the operation.
*/
libab_result libab_copy_string(char** destination, const char* source);
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/**
* Resolves the given parsetype, looking through the scope to find all the
* referenced base types, if applicable.
* @param to_resolve the parsetype to resolve.
* @param scope the scope to use for resolving the type info.
*/
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libab_result libab_resolve_parsetype(libab_parsetype* to_resolve,
libab_table* scope);
/**
* Creates a new type instance, and stores it into the given reference.
* @param to_instantiate the basetype to instantiate.
* @param into the reference to store the new type into.
* @param n the number of type parameters.
* @return the result of the instantiation.
*/
libab_result libab_instantiate_basetype(libab_basetype* to_instantiate,
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libab_ref* into, size_t n, ...);
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/**
* Creates a new libab_table, and stores it into the given reference.
* @param into the reference to store the table into.
* @param parent the parent reference to store.
* @return the result of the instantiation.
*/
libab_result libab_create_table(libab_ref* into, libab_ref* parent);
/**
* Allocates a new reference counted value with the given type and data.
* @param into the reference to store the allocated data into.
* @param data the type-specific data this value holds.
* @param type the type to give the value.
* @return the result of necessary allocations.
*/
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libab_result libab_create_value_ref(libab_ref* into, libab_ref* data,
libab_ref* type);
/**
* Allocates a new reference counted value with the given type and data.
* @param into the reference to store the allocated data into.
* @param data the type-specific data this value holds.
* @param type the type to give the value.
* @return the result of necessary allocations.
*/
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libab_result libab_create_value_raw(libab_ref* into, void* data,
libab_ref* type);
/**
* Allocates a function that uses internal code to run.
* @param into the reference into which to store the new function.
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* @param free_function the free function used to free function instances.
* @param fun the function implementation.
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* @param scope the scope in which this function was declared.
* @return libab_result the result of any necessary allocations.
*/
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libab_result libab_create_function_internal(libab_ref* into,
void (*free_function)(void*),
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libab_function_ptr fun,
libab_ref* scope);
/**
* Allocates a function that uses a tree to run.
* @param into the reference into which to store the new function.
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* @param free_function the free function used to free function instances.
* @param tree the function implementation.
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* @param scope the scope in which this function was declared.
* @return libab_result the result of any necessary allocations.
*/
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libab_result libab_create_function_tree(libab_ref* into,
void (*free_function)(void*),
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libab_tree* tree,
libab_ref* scope);
/**
* Creates a function list object, storing it in to the given reference.
* @param into the reference to store into.
* @param the function_list type.
* @return the result of the allocations.
*/
libab_result libab_create_function_list(libab_ref* into, libab_ref* type);
/**
* Creates a new table entry that holds the given value.
* @param table the table to store the entry into.
* @param key the key under which to store the value.
* @param value the value to store into the table.
* @param result the result of the operation.
*/
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libab_result libab_put_table_value(libab_table* table, const char* key,
libab_ref* value);
/**
* Returns the data stored in the given reference to a libab_value.
* This is not the same as libab_ref_get: libab_ref_get will return directly
* the data pointed to by the ference. libab_unwrap_value assumes the reference
* it's given is that to a libab_value, extracts it, then extracts its data
* field.
* @param ref the reference to unwrap.
* @return the resulting data.
*/
void* libab_unwrap_value(libab_ref* ref);
/**
* Similar to unwrap_value; Assumes the vector is a vector of
* values, and unwraps the value at the given index.
* @param vec the vector to unwrap a value from.
* @param index the index to look up.
* @return the value at the given index.
*/
void* libab_unwrap_param(libab_ref_vec* vec, size_t index);
#endif