Wabbit ㍿

Compiler-plugin stack enabling typeclass-oriented programming via context parameters; implicit evidence search, rule-style instances, derived instances, proof materialization, and Gradle/IDE integration.

Enforces explicit opt-in for global mutable state via RequiresGlobalState annotation; detects top-level and singleton mutables, offers configurable blacklist and Gradle integration.

Encodes and decodes binary data to compact, human-friendly Base58 strings (plain, no checksum); includes fixed-width typed helpers (ints, UUIDs), preserves leading zeros, rejects invalid input.

Enforces structural acyclicity in source code: compiler-plugin family detecting semantic file cycles, rejecting same-file declaration recursion, enforcing declaration order, and supporting explicit all-participant opt-out annotations.

Parses .env documents into ordered key/value entries with optional POSIX-style variable expansion, bounded command substitution, preserved quoting/escapes, and precise, line-aware error reporting.

Compact immutable collections, mutable primitive buffers, persistent queues and heaps, plus Option/Either/Validated result types—primitive buffers avoid boxing; includes Arr, ArrMap, BankersQueue, LeftistHeap.

Declarative Gen<T> DSL for property-based data generation, deterministic tape replay, simple shrinking/minimization, generated function values via CoGen, and low-level tape/bit utilities for deterministic testing.

Compact, sorted-range representation of character sets enabling fast membership checks, set algebra (union/intersect/difference/invert), and deterministic partitioning via topology-based refinement for parsers, lexers, automata.

Derives OpenAI function-tool schemas from serialization descriptors, turning sealed request hierarchies into SDK tool declarations and decoding model function calls into typed request objects.

Managed and spawned process execution with bounded output capture, explicit environment policies, structured failures, configurable sinks and termination policies, and clear ownership of child-process lifecycle.

Lightweight toolkit for Ktor HTTP clients: retry schedules with Retry-After parsing, per-request timeouts, etiquette headers, and destructive body-prefix sampling for diagnostics.

Maps structured serialization models to deterministic SCREAMING_SNAKE_CASE environment variables and back into typed configs, supporting nested objects, indexed lists, encode-defaults control, and testable map-based API.

Cursor-based character input layer for parsers, offering lookahead, mark/reset, source positions, span capture, in-memory and streaming inputs, plus small default token parsers (identifiers, quoted strings, whitespace, decimals).

Deterministic pseudo-random generators with mutable Random implementations and serializable immutable-state snapshots for reproducible simulation, testing, procedural generation; includes Philox, Threefry, xoshiro and L64X128 with block APIs.

Lazy, composable, memoized computations that evaluate on demand and cache results; supports map/flatMap/zip, recursive memoization builders, Delay abstraction, and stack-safe composition via internal trampoline.

Identity-based reference wrapper and collection helpers enabling reference-equality keys, identity sets/maps, lazy distinct-by-identity sequences, and diagnostic identity strings for interning, memoization, and cycle detection.

Dependency-light utilities rendering Java-style escaped strings and characters with configurable quote handling, char-class friendly escapes for [] and -, Unicode/control escape forms, and truncation with suffix.

Decides which throwables to rethrow from broad catch blocks, preserving fatal errors, interruptions, cancellations, control-flow and contract violations; supports configurable policies and suppressed-failure handling.