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Maintain the promise that references are null-ed on error.

This commit is contained in:
Danila Fedorin 2018-08-10 17:31:02 -07:00
parent 3c0648e473
commit b0c2eb5a5e
1 changed files with 5 additions and 1 deletions
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6
src/interpreter.c
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@ -939,6 +939,7 @@ libab_result _interpreter_call_operator(struct interpreter_state* state,
libab_ref_vec params;
libab_ref temp;
libab_ref_null(into);
libab_ref_null(&function_value);
va_start(args, scope);
result = libab_ref_vec_init(&params);
@ -972,6 +973,7 @@ libab_result _interpreter_call_operator(struct interpreter_state* state,
}
if(result == LIBAB_SUCCESS) {
libab_ref_free(into);
result = _interpreter_try_call(state, &function_value, &params, into);
}
@ -1151,7 +1153,7 @@ libab_result _interpreter_run(struct interpreter_state* state, libab_tree* tree,
}
if (result != LIBAB_SUCCESS) {
libab_ref_null(into);
} else if (tree->variant == TREE_BASE || tree->variant == TREE_BLOCK) {
size_t index = 0;
libab_get_unit_value(state->ab, into);
@ -1231,6 +1233,8 @@ libab_result _interpreter_run(struct interpreter_state* state, libab_tree* tree,
int* boolean = libab_ref_get(&condition_value->data);
result = _interpreter_run(state, vec_index(&tree->children,
*boolean ? 1 : 2), into, scope, SCOPE_NORMAL);
} else {
libab_ref_null(into);
}
libab_ref_free(&condition);