Class: JsonScanner::Selector

Inherits:

Object

• Object
• JsonScanner::Selector

Defined in:

ext/json_scanner/json_scanner.c

Instance Method Summary

• #initialize(path_ary) ⇒ Object constructor
• #inspect ⇒ Object
• #length ⇒ Object (also: #size)

Constructor Details

#initialize(path_ary) ⇒ Object

# File 'ext/json_scanner/json_scanner.c', line 731

static VALUE selector_m_initialize(VALUE self, VALUE path_ary)
{
  scan_ctx *ctx;
  VALUE scan_ctx_init_err, string_keys;
  TypedData_Get_Struct(self, scan_ctx, &selector_type, ctx);
  string_keys = rb_ary_new();
  scan_ctx_init_err = scan_ctx_init(ctx, path_ary, string_keys);
  if (scan_ctx_init_err != Qundef)
  {
    rb_exc_raise(scan_ctx_init_err);
  }
  rb_iv_set(self, "string_keys", string_keys);
  return self;
}

Instance Method Details

#inspect ⇒ Object

# File 'ext/json_scanner/json_scanner.c', line 746

static VALUE selector_m_inspect(VALUE self)
{
  scan_ctx *ctx;
  VALUE res;
  TypedData_Get_Struct(self, scan_ctx, &selector_type, ctx);
  res = rb_sprintf("#<%" PRIsVALUE " [", rb_class_name(CLASS_OF(self)));
  for (int i = 0; ctx->paths && i < ctx->paths_len; i++)
  {
    rb_str_buf_cat_ascii(res, "[");
    for (int j = 0; j < ctx->paths[i].len; j++)
    {
      switch (ctx->paths[i].elems[j].type)
      {
      case MATCHER_KEY:
        rb_str_catf(res, "'%.*s'", (int)ctx->paths[i].elems[j].value.key.len, ctx->paths[i].elems[j].value.key.val);
        break;
      case MATCHER_INDEX:
        rb_str_catf(res, "%ld", ctx->paths[i].elems[j].value.index);
        break;
      case MATCHER_INDEX_RANGE:
        rb_str_catf(res, "(%ld..%ld)", ctx->paths[i].elems[j].value.range.start, ctx->paths[i].elems[j].value.range.end == LONG_MAX ? -1L : ctx->paths[i].elems[j].value.range.end);
        break;
      case MATCHER_ANY_KEY:
        rb_str_buf_cat_ascii(res, "('*'..'*')");
        break;
      }
      if (j < ctx->paths[i].len - 1)
        rb_str_buf_cat_ascii(res, ", ");
    }
    rb_str_buf_cat_ascii(res, "]");
    if (i < ctx->paths_len - 1)
      rb_str_buf_cat_ascii(res, ", ");
  }
  rb_str_buf_cat_ascii(res, "]>");
  return res;
}

#length ⇒ Object Also known as: size

# File 'ext/json_scanner/json_scanner.c', line 783

static VALUE selector_m_length(VALUE self)
{
  scan_ctx *ctx;
  TypedData_Get_Struct(self, scan_ctx, &selector_type, ctx);
  return INT2FIX(ctx->paths_len);
}