v0.5.0 (2024-04-05)

Release Notes

Breaking change

• To support enum properly (the details follow), now savvy requires to put
  #[savvy] macro also on struct.

  #[savvy]   // NEW!
  struct Person {
      pub name: String,
  }
  
  #[savvy]
  impl Person {

  This might be a bit inconvenient on the one hand, but, on the other hand,
  several good things are introduced by this change! See the New Features
  section.

New features

• Now #[savvy] macro supports enum to express the possible options for a
  parameter. This is useful when you want to let users specify some option
  without fear of typo. See the guide for more details.

  Example:

  /// @export
  #[savvy]
  enum LineType {
      Solid,
      Dashed,
      Dotted,
  }
  
  /// @export
  #[savvy]
  fn plot_line(x: IntegerSexp, y: IntegerSexp, line_type: &LineType) -> savvy::Result<()> {
      match line_type {
          LineType::Solid => {
              ...
          },
          LineType::Dashed => {
              ...
          },
          LineType::Dotted => {
              ...
          },
      }
  }

  plot_line(x, y, LineType$Solid)

• Savvy now allows impl definition over multiple files. It had been a headache
  that it wouldn't compile when you specified #[savvy] on impl of a same
  struct multiple times. But now, you can split the impl not only within a
  same file but also over multiple files.

  Note that, in general, if you specify a #[savvy] function or struct in other
  file than lib.rs, you need to export the objects by *. This is because
  #[savvy] defines additional functions other than the original ones and these
  also need to be exported. Since you don't know the names of such
  auto-generated functions, * is the solution.

  mod foo;
  pub use foo::*;

• OwnedListSexp and ListSexp gains unchecked_*() variants of the set and
  get methods for a fast but unsafe operation. Thanks @daniellga!

Download savvy-cli 0.5.0

File	Platform	Checksum
savvy-cli-aarch64-apple-darwin.tar.xz	Apple Silicon macOS	checksum
savvy-cli-x86_64-apple-darwin.tar.xz	Intel macOS	checksum
savvy-cli-x86_64-pc-windows-msvc.zip	x64 Windows	checksum
savvy-cli-aarch64-unknown-linux-gnu.tar.xz	ARM64 Linux	checksum
savvy-cli-x86_64-unknown-linux-gnu.tar.xz	x64 Linux	checksum