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Byte Compilation

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Will Duquette edited this page Sep 21, 2019 · 1 revision

Some very preliminary and ill-informed thoughts on byte compilation.

What would a byte-compiled script look like?

Registers for temporary values.

  • For each command in the script:
    • Compute each word in the script, in order.
    • If the word is a Tokens or a CmdRef, those will need to be byte-compiled as well.
    • Execute the command, saving its result.
    • If necessary, return with a non-OK result code
    • At end, return with the computed result.

The list of byte-codes is an enum; each enum has the tuple data it needs to operate.

One set of registers is just a Vec; this is what's passed to the command. As each argument's value is computed, it's added to the Vec, building up the command.

What do the standard TCL opcodes look like?

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