Add a new implementation struct with only one function.

This commit is contained in:
Danila Fedorin 2018-04-24 16:59:53 -07:00
parent 14e9ddea23
commit 0a24fff344
5 changed files with 32 additions and 3 deletions

16
include/impl.h Normal file
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@ -0,0 +1,16 @@
#ifndef LIBABACUS_IMPL_H
#define LIBABACUS_IMPL_H
/**
* Implementation functions for things like numbers.
*/
struct libab_impl_s {
/**
* Function to parse a number from a string.
*/
void* (*parse_num)(const char*);
};
typedef struct libab_impl_s libab_impl;
#endif

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@ -3,15 +3,18 @@
#include "table.h"
#include "tree.h"
#include "impl.h"
struct libab_interpreter_s {
libab_ref base_table;
libab_impl* impl;
};
typedef struct libab_interpreter_s libab_interpreter;
void libab_interpreter_init(libab_interpreter* intr,
libab_ref* table);
libab_ref* table,
libab_impl* impl);
libab_result libab_interpreter_run(libab_interpreter* intr,
libab_tree* tree, libab_ref* into);
void libab_interpreter_free(libab_interpreter* intr);

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@ -8,6 +8,7 @@
#include "interpreter.h"
#include "result.h"
#include "table.h"
#include "impl.h"
/**
* The main struct of libabacus,
@ -35,6 +36,11 @@ struct libab_s {
* things like functions and operators.
*/
libab_ref table;
/**
* The allocator used to construct number instances.
*/
libab_impl impl;
};
typedef struct libab_s libab;

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@ -2,18 +2,22 @@
#include "util.h"
void libab_interpreter_init(libab_interpreter* intr,
libab_ref* table) {
libab_ref* table,
libab_impl* impl) {
libab_ref_copy(table, &intr->base_table);
intr->impl = impl;
}
struct interpreter_state {
libab_ref num_ref;
libab_impl* impl;
};
libab_result _interpreter_init(struct interpreter_state* state, libab_interpreter* intr) {
libab_result result = LIBAB_SUCCESS;
libab_basetype* num_type;
libab_ref_null(&state->num_ref);
state->impl = intr->impl;
num_type = libab_table_search_basetype(libab_ref_get(&intr->base_table), "num");
if(num_type != NULL) {

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@ -12,7 +12,7 @@ libab_result libab_init(libab* ab) {
if(result == LIBAB_SUCCESS) {
libab_parser_init(&ab->parser, &ab->table);
libab_interpreter_init(&ab->intr, &ab->table);
libab_interpreter_init(&ab->intr, &ab->table, &ab->impl);
result = libab_lexer_init(&ab->lexer);
}