method

[]=

v2_1_10 - Show latest stable - 0 notes - Class: Struct

[]=(p1, p2) public

Attribute Assignment—Sets the value of the given struct member or the member at the given index. Raises NameError if the name does not exist and IndexError if the index is out of range.

Customer = Struct.new(:name, :address, :zip)
joe = Customer.new("Joe Smith", "123 Maple, Anytown NC", 12345)

joe["name"] = "Luke"
joe[:zip]   = "90210"

joe.name   #=> "Luke"
joe.zip    #=> "90210"

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VALUE
rb_struct_aset(VALUE s, VALUE idx, VALUE val)
{
    long i;

    if (RB_TYPE_P(idx, T_SYMBOL)) {
        return rb_struct_aset_id(s, SYM2ID(idx), val);
    }
    if (RB_TYPE_P(idx, T_STRING)) {
        ID id = rb_check_id(&idx);
        if (!id) {
            rb_name_error_str(idx, "no member '%"PRIsVALUE"' in struct",
                              QUOTE(idx));
        }
        return rb_struct_aset_id(s, id, val);
    }

    i = NUM2LONG(idx);
    if (i < 0) i = RSTRUCT_LEN(s) + i;
    if (i < 0) {
        rb_raise(rb_eIndexError, "offset %ld too small for struct(size:%ld)",
                 i, RSTRUCT_LEN(s));
    }
    if (RSTRUCT_LEN(s) <= i) {
        rb_raise(rb_eIndexError, "offset %ld too large for struct(size:%ld)",
                 i, RSTRUCT_LEN(s));
    }
    rb_struct_modify(s);
    RSTRUCT_SET(s, i, val);
    return val;
}

[]=

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