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# File 'ext/tarantool/response_c.c', line 102
static VALUE
unpack_field(VALUE self, VALUE data, VALUE field, VALUE i_o, VALUE realfield_o, VALUE serializers)
{
int i = NUM2INT(i_o);
const char *str = StringValuePtr(data);
size_t len = RSTRING_LEN(data);
size_t fieldsize = slice_ber((const uint8_t**)&str, &len);
VALUE value;
rb_str_drop_bytes(data, RSTRING_LEN(data) - len);
str = StringValuePtr(data);
if (fieldsize == 0) {
return Qnil;
}
if (fieldsize > len) {
rb_raise(rb_eValueError, "Response mailformed at field #%u fieldsize: %zu tail len: %zu", i, fieldsize, len);
}
if (field == sym_int || field == sym_integer) {
if (fieldsize != 4) {
rb_raise(rb_eValueError, "Bad field size %zd for integer field #%u", fieldsize, i);
}
value = UINT2NUM(get_uint32(str));
} else if (field == sym_str || field == sym_string) {
if (*str == 0 && fieldsize > 0) {
value = rb_enc_str_new(str+1, fieldsize-1, rb_utf8_encoding());
} else {
value = rb_enc_str_new(str, fieldsize, rb_utf8_encoding());
}
} else if (field == sym_int64) {
if (fieldsize != 8) {
rb_raise(rb_eValueError, "Bad field size %zd for 64bit integer field #%u", fieldsize, i);
}
value = U642NUM(get_uint64(str));
} else if (field == sym_bytes) {
value = rb_enc_str_new(str, fieldsize, rb_ascii8bit_encoding());
} else if (field == sym_int16) {
if (fieldsize != 2) {
rb_raise(rb_eValueError, "Bad field size %zd for 16bit integer field #%u", fieldsize, i);
}
value = UINT2NUM(get_uint16(str));
} else if (field == sym_int8) {
if (fieldsize != 1) {
rb_raise(rb_eValueError, "Bad field size %zd for 8bit integer field #%u", fieldsize, i);
}
value = UINT2NUM(*(uint8_t*)str);
} else if (field == sym_sint) {
if (fieldsize != 4) {
rb_raise(rb_eValueError, "Bad field size %zd for integer field #%u", fieldsize, i);
}
value = INT2NUM((int32_t)get_uint32(str));
} else if (field == sym_sint64) {
if (fieldsize != 8) {
rb_raise(rb_eValueError, "Bad field size %zd for 64bit integer field #%u", fieldsize, i);
}
value = I642NUM((int64_t)get_uint64(str));
} else if (field == sym_sint16) {
if (fieldsize != 2) {
rb_raise(rb_eValueError, "Bad field size %zd for 16bit integer field #%u", fieldsize, i);
}
value = INT2NUM((int16_t)get_uint16(str));
} else if (field == sym_sint8) {
if (fieldsize != 1) {
rb_raise(rb_eValueError, "Bad field size %zd for 8bit integer field #%u", fieldsize, i);
}
value = INT2NUM(*(int8_t*)str);
} else if (field == sym_varint) {
if (fieldsize == 4) {
value = UINT2NUM(get_uint32(str));
} else if (fieldsize == 8) {
value = U642NUM(get_uint64(str));
} else if (fieldsize == 2) {
value = UINT2NUM(get_uint16(str));
} else {
rb_raise(rb_eValueError, "Bad field size %zd for integer field %d", fieldsize, i);
}
} else if (field == sym_auto) {
value = rb_enc_str_new(str, fieldsize, rb_utf8_encoding());
if (fieldsize == 2 || fieldsize == 4 || fieldsize == 8) {
value = rb_class_new_instance(1, &value, rb_cAutoType);
}
} else {
int realfield = NUM2INT(realfield_o);
VALUE serializer = rb_ary_entry(serializers, realfield);
VALUE substr = rb_enc_str_new(str, fieldsize, rb_ascii8bit_encoding());
if (!RTEST(serializer)) {
serializer = rb_funcall2(self, id_get_serializer, 1, &field);
rb_ary_store(serializers, realfield, serializer);
}
value = rb_funcall2(serializer, id_decode, 1, &substr);
}
rb_str_drop_bytes(data, fieldsize);
return value;
}
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