Laurenz c94a18833f Closures and function definitions 🚀
Supports:
- Closure syntax: `(x, y) => z`
- Shorthand for a single argument: `x => y`
- Function syntax: `let f(x) = y`
- Capturing of variables from the environment
- Error messages for too few / many passed arguments

Does not support:
- Named arguments
- Variadic arguments with `..`
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..
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Tests

Directory structure

Top level directory structure:

  • typ: Input files.
  • ref: Reference images which the output is compared with to determine whether a test passed or failed.
  • png: PNG files produced by tests.
  • pdf: PDF files produced by tests.
  • res: Resource files used by tests.

Running the tests

# Run all tests
cargo test

# Run unit tests
cargo test --lib

# Run integration tests (the tests in this directory)
cargo test --test typeset

# Run all tests whose names contain the word `filter`
cargo test --test typeset filter

Creating new tests

To keep things small, please optimize reference images before committing them:

# One image
oxipng -o max path/to/image.png

# All images
oxipng -r -o max tests/ref