Experiments/libabacus
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Store type parameters into table during call.

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This commit is contained in:
Danila Fedorin 2018-06-16 23:40:32 -07:00
parent 27c79d44f5
commit 065554bcdf
1 changed files with 89 additions and 20 deletions
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109
src/interpreter.c
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@ -250,7 +250,8 @@ libab_result _interpreter_resolve_type_params(libab_ref* type,
*/
libab_result _interpreter_check_types(libab_ref_vec* reference_types,
libab_ref_vec* params,
libab_ref_vec* types) {
libab_ref_vec* types,
libab_ref_trie* param_map) {
libab_result result = LIBAB_SUCCESS;
libab_ref_trie function_params;
@ -295,9 +296,10 @@ libab_result _interpreter_check_types(libab_ref_vec* reference_types,
}
}
libab_ref_trie_free(&function_params);
if (result != LIBAB_SUCCESS) {
if(result == LIBAB_SUCCESS) {
*param_map = function_params;
} else {
libab_ref_trie_free(&function_params);
libab_ref_vec_clear(types);
}
@ -316,12 +318,15 @@ libab_result _interpreter_check_types(libab_ref_vec* reference_types,
*/
libab_result _interpreter_find_match(libab_function_list* function_values,
libab_ref_vec* params,
libab_ref_vec* new_types, libab_ref* match,
libab_ref_vec* new_types,
libab_ref_trie* param_map,
libab_ref* match,
int partial) {
libab_result result = LIBAB_SUCCESS;
size_t index = 0;
size_t list_size = libab_function_list_size(function_values);
int found_match = 0;
libab_ref_trie temp_param_map;
libab_ref_vec temp_new_types;
libab_ref temp_function_value;
libab_parsetype* temp_function_type;
@ -340,7 +345,7 @@ libab_result _interpreter_find_match(libab_function_list* function_values,
partial)) {
/* We found a function that has the correct number of parameters. */
result = _interpreter_check_types(
&temp_function_type->children, params, &temp_new_types);
&temp_function_type->children, params, &temp_new_types, &temp_param_map);
if (result == LIBAB_MISMATCHED_TYPE) {
/* Mismatch is OK. */
result = LIBAB_SUCCESS;
@ -352,6 +357,7 @@ libab_result _interpreter_find_match(libab_function_list* function_values,
* new_types, and use new memory for temp list. */
found_match = 1;
*new_types = temp_new_types;
*param_map = temp_param_map;
libab_ref_free(match);
libab_ref_copy(&temp_function_value, match);
result = libab_ref_vec_init(&temp_new_types);
@ -363,13 +369,17 @@ libab_result _interpreter_find_match(libab_function_list* function_values,
* initialized, and the call is ambigous. Free all data. */
libab_ref_vec_free(new_types);
libab_ref_vec_free(&temp_new_types);
libab_ref_trie_free(param_map);
libab_ref_trie_free(&temp_param_map);
result = LIBAB_AMBIGOUS_CALL;
}
} else {
/* Something bad happened. Free data as best as we can. */
libab_ref_vec_free(&temp_new_types);
if (found_match)
if (found_match) {
libab_ref_vec_free(new_types);
libab_ref_trie_free(param_map);
}
}
}
@ -459,6 +469,7 @@ libab_result _interpreter_call_tree(libab_tree* tree, libab_ref_vec* params,
libab_result _interpreter_call_behavior(struct interpreter_state* state,
libab_behavior* behavior,
libab_ref_vec* params,
libab_ref* scope,
libab_ref* into) {
libab_result result = LIBAB_SUCCESS;
if (behavior->variant == BIMPL_INTERNAL) {
@ -475,19 +486,21 @@ libab_result _interpreter_call_behavior(struct interpreter_state* state,
* @param into the reference to store the copy into.
*/
libab_result _interpreter_copy_function_basic(libab_ref* function,
libab_ref* scope,
libab_ref* into) {
libab_function* func = libab_ref_get(function);
void (*free_function)(void*) = function->count->free_func;
return libab_create_function_behavior(into, free_function, &func->behavior, &func->scope);
return libab_create_function_behavior(into, free_function, &func->behavior, scope);
}
libab_result _interpreter_copy_function_with_params(libab_ref* function,
libab_ref_vec* params,
libab_ref* scope,
libab_ref* into) {
int index = 0;
libab_ref param;
libab_function* func;
libab_result result = _interpreter_copy_function_basic(function, into);
libab_result result = _interpreter_copy_function_basic(function, scope, into);
func = libab_ref_get(into);
for(; index < params->size && result == LIBAB_SUCCESS; index++) {
@ -551,6 +564,7 @@ libab_result _interpreter_copy_type_offset(libab_ref* type,
libab_result _interpreter_partially_apply(struct interpreter_state* state,
libab_ref* function,
libab_ref_vec* params,
libab_ref* scope,
libab_ref* into) {
libab_result result = LIBAB_SUCCESS;
libab_value* value;
@ -559,7 +573,7 @@ libab_result _interpreter_partially_apply(struct interpreter_state* state,
value = libab_ref_get(function);
libab_ref_null(&new_type);
result = _interpreter_copy_function_with_params(&value->data, params, &new_function);
result = _interpreter_copy_function_with_params(&value->data, params, scope, &new_function);
if(result == LIBAB_SUCCESS) {
libab_ref_free(&new_type);
result = _interpreter_copy_type_offset(&value->type, 0, &new_type);
@ -577,6 +591,44 @@ libab_result _interpreter_partially_apply(struct interpreter_state* state,
return result;
}
libab_result _interpreter_foreach_insert_param(const libab_ref* param,
const char* key,
va_list args) {
libab_result result = LIBAB_SUCCESS;
libab_table_entry* entry;
if ((entry = malloc(sizeof(*entry)))) {
entry->variant = ENTRY_TYPE_PARAM;
libab_ref_copy(param, &entry->data_u.type_param);
} else {
result = LIBAB_MALLOC;
}
if(result == LIBAB_SUCCESS) {
result = libab_table_put(libab_ref_get(va_arg(args, libab_ref*)), key, entry);
if(result != LIBAB_SUCCESS) {
libab_ref_free(&entry->data_u.type_param);
free(entry);
}
}
return result;
}
libab_result _interpreter_create_scope(libab_ref* into,
libab_ref* parent_scope,
libab_ref_trie* param_map) {
libab_result result = libab_create_table(into, parent_scope);
if (result == LIBAB_SUCCESS) {
result = libab_ref_trie_foreach(param_map, _interpreter_foreach_insert_param, into);
if(result != LIBAB_SUCCESS) {
libab_ref_free(into);
libab_ref_null(into);
}
}
return result;
}
/**
* Calls a function with the given, compatible paramters.
* @param state the state to use to call the function.
@ -588,21 +640,32 @@ libab_result _interpreter_partially_apply(struct interpreter_state* state,
libab_result _interpreter_perform_function_call(struct interpreter_state* state,
libab_ref* to_call,
libab_ref_vec* params,
libab_ref_trie* param_map,
libab_ref* into) {
libab_result result = LIBAB_SUCCESS;
libab_value* function_value;
libab_function* function;
libab_parsetype* function_type;
libab_ref new_scope;
size_t new_params;
function_value = libab_ref_get(to_call);
function = libab_ref_get(&function_value->data);
function_type = libab_ref_get(&function_value->type);
new_params = params->size - function->params.size;
if (function_type->children.size - new_params == 1) {
result = _interpreter_call_behavior(state, &function->behavior, params, into);
result = _interpreter_create_scope(&new_scope, &function->scope, param_map);
if(result != LIBAB_SUCCESS) {
libab_ref_null(into);
} else if (function_type->children.size - new_params == 1) {
result = _interpreter_call_behavior(state, &function->behavior, params, &new_scope, into);
} else {
result = _interpreter_partially_apply(state, to_call, params, into);
result = _interpreter_partially_apply(state, to_call, params, &new_scope, into);
}
libab_ref_free(&new_scope);
return result;
}
@ -617,7 +680,9 @@ libab_result _interpreter_perform_function_call(struct interpreter_state* state,
*/
libab_result _interpreter_cast_and_perform_function_call(
struct interpreter_state* state,
libab_ref* to_call, libab_ref_vec* params, libab_ref_vec* new_types,
libab_ref* to_call, libab_ref_vec* params,
libab_ref_vec* new_types,
libab_ref_trie* param_map,
libab_ref* into) {
libab_result result;
libab_ref_vec new_params;
@ -632,7 +697,7 @@ libab_result _interpreter_cast_and_perform_function_call(
if (result == LIBAB_SUCCESS) {
result = _interpreter_perform_function_call(state, to_call,
&new_params, into);
&new_params, param_map, into);
}
libab_ref_vec_free(&new_params);
@ -655,13 +720,14 @@ libab_result _interpreter_call_function_list(struct interpreter_state* state,
libab_result result = LIBAB_SUCCESS;
libab_ref_vec new_types;
libab_ref to_call;
libab_ref_trie param_map;
libab_ref_null(into);
result =
_interpreter_find_match(list, params, &new_types, &to_call, 0);
_interpreter_find_match(list, params, &new_types, &param_map, &to_call, 0);
if (result == LIBAB_SUCCESS) {
if (libab_ref_get(&to_call) == NULL) {
result = _interpreter_find_match(list, params, &new_types,
result = _interpreter_find_match(list, params, &new_types, &param_map,
&to_call, 1);
}
}
@ -673,7 +739,8 @@ libab_result _interpreter_call_function_list(struct interpreter_state* state,
if (result == LIBAB_SUCCESS) {
libab_ref_free(into);
result = _interpreter_cast_and_perform_function_call(state, &to_call, params,
&new_types, into);
&new_types, &param_map, into);
libab_ref_trie_free(&param_map);
libab_ref_vec_free(&new_types);
}
@ -696,6 +763,7 @@ libab_result _interpreter_call_function(struct interpreter_state* state,
libab_ref* into) {
libab_result result = LIBAB_SUCCESS;
libab_ref_vec temp_new_types;
libab_ref_trie param_map;
libab_value* function_value;
libab_parsetype* function_type;
@ -706,12 +774,13 @@ libab_result _interpreter_call_function(struct interpreter_state* state,
result = libab_ref_vec_init(&temp_new_types);
if (result == LIBAB_SUCCESS) {
result = _interpreter_check_types(&function_type->children,
params, &temp_new_types);
params, &temp_new_types, &param_map);
if (result == LIBAB_SUCCESS) {
libab_ref_free(into);
result = _interpreter_cast_and_perform_function_call(
state, function, params, &temp_new_types, into);
state, function, params, &temp_new_types, &param_map, into);
libab_ref_trie_free(&param_map);
}
libab_ref_vec_free(&temp_new_types);