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Implement the if statement.

This commit is contained in:
Danila Fedorin 2018-08-10 16:34:28 -07:00
parent b1ab168907
commit d0615d2c3e
1 changed files with 22 additions and 0 deletions
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22
src/interpreter.c
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@ -1212,6 +1212,28 @@ libab_result _interpreter_run(struct interpreter_state* state, libab_tree* tree,
libab_get_true_value(state->ab, into);
} else if(tree->variant == TREE_FALSE) {
libab_get_false_value(state->ab, into);
} else if (tree->variant == TREE_IF) {
libab_ref condition;
libab_value* condition_value;
libab_parsetype* condition_type;
result = _interpreter_run(state, vec_index(&tree->children, 0),
&condition, scope, SCOPE_NORMAL);
if(result == LIBAB_SUCCESS) {
condition_value = libab_ref_get(&condition);
condition_type = libab_ref_get(&condition_value->type);
if(condition_type->data_u.base != libab_get_basetype_bool(state->ab)) {
result = LIBAB_MISMATCHED_TYPE;
}
}
if(result == LIBAB_SUCCESS) {
int* boolean = libab_ref_get(&condition_value->data);
result = _interpreter_run(state, vec_index(&tree->children,
*boolean ? 1 : 2), into, scope, SCOPE_NORMAL);
}
libab_ref_free(&condition);
} else {
libab_get_unit_value(state->ab, into);
}