Rakudo

Rakudo is Article description::a compiler that implements the [[Raku programming language.]] Rakudo targets Raku's native virtual machine MoarVM as well as the Java and JavaScript virtual machines.

Emerge
Emerge the package base

Module loading

 * RAKUDOLIB (str) a comma-delimited path list for Raku modules.
 * RAKUDO_MODULE_DEBUG (bool) If true, extra debugging information is sent to STDERR.

Error Handling

 * RAKU_EXCEPTIONS_HANDLER (str) define the exception handling class, defaults to if undefined.
 * RAKUDO_NO_DEPRECATIONS (bool) If true, suppresses warnings when deprecated language features are used.
 * RAKUDO_DEPRECATIONS_FATAL (bool) If true, use of deprecated language features become fatal errors.
 * RAKUDO_VERBOSE_STACKFRAME (int) If true, provides stack frame information for debugging purposes out to a maximum specified number of lines of context.
 * RAKUDO_BACKTRACE_SETTING (bool) If true, files are included in stack traces.

Precompilation

 * RAKUDO_PREFIX (str) When set, this will cause Raku to look for module repositories in a specified alternative location.
 * RAKUDO_LOG_PRECOMP (bool) If true, diagnostic information is emitted regarding Raku's precompilation process.

Line Editor

 * RAKUDO_LINE_EDITOR (str) When set, this specifies the default line editor for Raku to use. When set to Raku will not complain about the absence of a line editor. Currently, either  or  are expected values.
 * RAKUDO_DISABLE_MULTILINE (bool) disable multi-line input when Raku is in interactive mode.
 * RAKUDO_HIST (str) specifies the location of Raku's line editor history.

Miscellaneous

 * RAKUDO_DEFAULT_READ_ELEMS (int) When set, this defines the number of characters read by an.
 * RAKUDO_ERROR_COLOR (bool) Controls whether compiler error output is color coded or not; defaults to true in POSIX environments.
 * RAKUDO_MAX_THREADS (int) Controls the maximum number of threads created by ; default 64.
 * TMPDIR (str) When set uses the specified alternative temporary directory; defaults to.
 * RAKUDO_SNAPPER (float) Specifies the interval between virtual machine state snapshots created locally by the Rakudo compiler's class. This defaults to 0.1 or 10 snapshots per second.
 * RAKUDO_HOME (str) override Raku's installation path.
 * NQP_HOME (str) override NQP's installation path.

Files

 * Raku's history file used by the line editor when Raku is run interactively.

External Resources

 * https://raku.guide, a quick overview of the Raku programming language.
 * https://docs.raku.org/programs/03-environment-variables/