Allow tree-based function implementations.

This commit is contained in:
Danila Fedorin 2018-04-20 00:25:31 -07:00
parent 576f805bd7
commit 8214aa8344
3 changed files with 37 additions and 2 deletions

View File

@ -19,15 +19,43 @@ enum libab_operator_variant_e {
OPERATOR_POSTFIX OPERATOR_POSTFIX
}; };
/**
* The variant of the implementation of a behavior.
*/
enum libab_behavior_variant_e {
BIMPL_INTERNAL,
BIMPL_TREE
};
/**
* A struct that represents the implementation of a behavior.
*/
struct libab_behavior_impl_s {
/**
* The variant of this implementation.
*/
enum libab_behavior_variant_e variant;
union {
/**
* The internal function used for an internal implementation.
*/
libab_function_ptr internal;
/**
* The tree-based implementation.
*/
libab_ref tree;
} data_u;
};
/** /**
* The common information * The common information
* that both operators and functions shared. * that both operators and functions shared.
*/ */
struct libab_behavior_s { struct libab_behavior_s {
/** /**
* The function that handles the parameters. * The implementation of this behavior.
*/ */
libab_function_ptr function; struct libab_behavior_impl_s impl;
/** /**
* The type of the function. * The type of the function.
*/ */
@ -72,6 +100,8 @@ struct libab_function_s {
}; };
typedef enum libab_operator_variant_e libab_operator_variant; typedef enum libab_operator_variant_e libab_operator_variant;
typedef enum libab_behavior_variant_e libab_behavior_variant;
typedef struct libab_behavior_impl_s libab_behavior_impl;
typedef struct libab_behavior_s libab_behavior; typedef struct libab_behavior_s libab_behavior;
typedef struct libab_operator_s libab_operator; typedef struct libab_operator_s libab_operator;
typedef struct libab_function_s libab_function; typedef struct libab_function_s libab_function;

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@ -2,6 +2,9 @@
void libab_behavior_free(libab_behavior* behavior) { void libab_behavior_free(libab_behavior* behavior) {
libab_ref_free(&behavior->type); libab_ref_free(&behavior->type);
if(behavior->impl.variant == BIMPL_TREE) {
libab_ref_free(&behavior->impl.data_u.tree);
}
} }
void libab_operator_free(libab_operator* op) { void libab_operator_free(libab_operator* op) {

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@ -38,6 +38,8 @@ libab_result _initialize_behavior(libab* ab, libab_behavior* behavior,
ll_init(&tokens); ll_init(&tokens);
behavior->impl.variant = BIMPL_INTERNAL;
behavior->impl.data_u.internal = func;
result = libab_lexer_lex(&ab->lexer, type, &tokens); result = libab_lexer_lex(&ab->lexer, type, &tokens);
if(result == LIBAB_SUCCESS) { if(result == LIBAB_SUCCESS) {
result = libab_parser_parse_type(&ab->parser, &tokens, type, &behavior->type); result = libab_parser_parse_type(&ab->parser, &tokens, type, &behavior->type);