The Mercury logic programming system

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TLDR

  • Mercury is a logic/functional language combining declarative expressiveness with strong static analysis, compiled via C, C#, or Java backends.

Key Takeaways

  • Compiler is self-hosting: Mercury is written in Mercury, requiring a bootstrapping step before use.
  • Two backends: a C low-level backend (GCC/Clang) and a high-level backend targeting C, C#, and Java.
  • Runs on Linux (AArch64, PPC, m68k), macOS, FreeBSD, OpenBSD, Windows (MSVC, MSYS2, Cygwin), and more.
  • Positions itself as logic programming with advanced static error detection, differentiating from Prolog’s runtime-heavy approach.
  • Active repo includes sample programs, documentation, contributor guidelines, and release notes.

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