Zephyr ASDL
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| Paradigm(s) | declarative |
|---|---|
| Designed by | Appel et al |
| Appeared in | 1997 |
| Computational class | pushdown automata |
| Reference implementation | Defunct |
| Influenced | Zaddy |
| File extension(s) | .asdl |
Abstract Syntax Description Language, more commonly known as Zephyr ASDL to disambiguate it from other syntax description languages, is a wikipedia:domain-specific language introduced in 1997 by researchers at Princeton University and the University of Wisconsin at Madison as part of the Zephyr compiler infrastructure project.[1][2] It is used by several language implementations, notably the reference implementation of Python, to describe abstract syntax trees (ASTs).
Notable Usage
Despite relative obscurity even within the compiler-engineering ecosystem, Zephyr ASDL is routinely chosen to represent ASTs. The following projects use Zephyr ASDL:
- CPython, the reference implementation of Python [1]
- Typhon, the reference implementation of Monte [2]
- The Oils shell environment [3]
Monte and Oils both support compiling `.asdl` files directly as modules.
References
- ↑ Wang, D. C., Appel, A. W., Korn, J. L., & Serra, C. S. (1997). The zephyr abstract syntax description language. Paper presented at 1997 Conference on Domain-Specific Languages, DSL 1997, Santa Barbara, United States. https://www.cs.princeton.edu/~appel/papers/asdl97.pdf
- ↑ Zephyr ASDL (Abstract Syntax Description Language), math4tots et al 2012. https://stackoverflow.com/q/8873126/264985