End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

Binding#local_variable_get

binding.local_variable_get(symbol) → obj

static VALUE
bind_local_variable_get(VALUE bindval, VALUE sym)
{
    ID lid = check_local_id(bindval, &sym);
    const rb_binding_t *bind;
    const VALUE *ptr;
    const rb_env_t *env;

    if (!lid) goto undefined;

    GetBindingPtr(bindval, bind);

    env = VM_ENV_ENVVAL_PTR(vm_block_ep(&bind->block));
    if ((ptr = get_local_variable_ptr(&env, lid)) != NULL) {
        return *ptr;
    }

    sym = ID2SYM(lid);
  undefined:
    rb_name_err_raise("local variable `%1$s' is not defined for %2$s",
                      bindval, sym);
    UNREACHABLE_RETURN(Qundef);
}

Returns the value of the local variable symbol.

Example

def foo
  a = 1
  binding.local_variable_get(:a) #=> 1
  binding.local_variable_get(:b) #=> NameError
end

This method is the short version of the following code:

Example

binding.eval("#{symbol}")

See also #local_variable_defined? #local_variables #irb #local_variable_set also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.1

‹ prev#local_variable_defined? next ›#local_variables