mirror of
https://github.com/janet-lang/janet
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24 lines
1.1 KiB
Plaintext
24 lines
1.1 KiB
Plaintext
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#
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# Tool to dump a marshalled version of the janet core to stdout. The
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# image should eventually allow janet to be started from a precompiled
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# image rather than recompiled every time from the embedded source. More
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# work will go into shrinking the image (it isn't currently that large but
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# could be smaller), creating the mechanism to load the image, and modifying
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# the build process to compile janet with a build int image rather than
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# embedded source.
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#
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# Get image. This image contains as much of the core library and documentation that
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# can be written to an image (no cfunctions, no abstracts (stdout, stdin, stderr)),
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# everyting else goes. Cfunctions and abstracts will be referenced from a register
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# table which will be generated on janet startup.
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(def image (let [env-pairs (pairs (env-lookup _env))
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essential-pairs (filter (fn [[k v]] (or (cfunction? v) (abstract? v))) env-pairs)
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lookup (table ;(mapcat identity essential-pairs))
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reverse-lookup (invert lookup)]
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(marshal (table/getproto _env) reverse-lookup)))
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# Write image
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(file/write stdout image)
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(file/flush stdout)
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