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Add code to call tree functions.

This commit is contained in:
Danila Fedorin 2018-06-17 02:03:34 -07:00
parent 88ec979ba5
commit 22b738a4f0
1 changed files with 35 additions and 7 deletions
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42
src/interpreter.c
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@ -469,16 +469,48 @@ libab_result _interpreter_cast_params(libab_ref_vec* params,
return result;
}
libab_result _interpreter_run(struct interpreter_state* state, libab_tree* tree,
libab_ref* into, libab_ref* scope,
libab_interpreter_scope_mode scope_mode);
/**
* Calls a tree-based function with the given parameters.
* @param tree the tree function to call.
* @param the parameters to give to the function.
* @param scope the scope used for the call.
* @param into the reference to store the result into;
* @return the result of the call.
*/
libab_result _interpreter_call_tree(libab_tree* tree, libab_ref_vec* params,
libab_result _interpreter_call_tree(struct interpreter_state* state,
libab_tree* tree,
libab_ref_vec* params,
libab_ref* scope,
libab_ref* into) {
libab_result result = LIBAB_SUCCESS;
libab_ref new_scope;
libab_tree* child;
libab_ref param;
libab_table* new_scope_raw;
size_t i;
libab_result result = libab_create_table(&new_scope, scope);
if(result == LIBAB_SUCCESS) {
new_scope_raw = libab_ref_get(&new_scope);
for(i = 0; i < tree->children.size - 1 && result == LIBAB_SUCCESS; i++) {
child = vec_index(&tree->children, i);
libab_ref_vec_index(params, i, &param);
result = libab_put_table_value(new_scope_raw, child->string_value, &param);
libab_ref_free(&param);
}
}
if(result == LIBAB_SUCCESS) {
result = _interpreter_run(state,
vec_index(&tree->children, tree->children.size - 1),
into, &new_scope, SCOPE_NONE);
}
libab_ref_free(&new_scope);
return result;
}
@ -499,7 +531,7 @@ libab_result _interpreter_call_behavior(struct interpreter_state* state,
if (behavior->variant == BIMPL_INTERNAL) {
result = behavior->data_u.internal(state->ab, params, into);
} else {
result = _interpreter_call_tree(behavior->data_u.tree, params, into);
result = _interpreter_call_tree(state, behavior->data_u.tree, params, scope, into);
}
return result;
}
@ -847,10 +879,6 @@ libab_result _interpreter_try_call(struct interpreter_state* state,
return result;
}
libab_result _interpreter_run(struct interpreter_state* state, libab_tree* tree,
libab_ref* into, libab_ref* scope,
libab_interpreter_scope_mode scope_mode);
libab_result _interpreter_require_value(libab_ref* scope, const char* name,
libab_ref* into) {
libab_result result = LIBAB_SUCCESS;