mirror of
https://github.com/janet-lang/janet
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69 lines
2.1 KiB
Plaintext
69 lines
2.1 KiB
Plaintext
# A .dsts file will contain VM, assembly for a dst function. This includes
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# associated constants and what not. The assembler should be able to
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# simply construct a FuncDef from this file. This file is also parsed
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# in the same markup as dst itself (extended S expressions)
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{
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arity 3
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signature (integer integer integer integer)
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source "source file path"
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varargs false
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# Name for reference by nested funcdefs
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name outerfunc
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# Contains the bytecode for this function. This can be assembly
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# instructions or integers. Assembly will be converted to integer bytecodes immediately.
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bytecode [
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(typecheck 0 integer)
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(typecheck 1 integer)
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(typecheck 2 integer)
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:checked-entry
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(load-constant 3 bork)
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(load-constant 4 bip)
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(add-integer-unchecked 5 0 1)
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(add-integer-unchecked 5 5 2)
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(add-integer-unchecked 5 5 3)
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(add-integer-unchecked 5 5 4)
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(return 5)
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]
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# A source map is optional. The sourcemap corresponds with the byte code.
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# Each number is a 64 bit integer, the concatenation of two 32 bit integers.
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# These integers represent source line, source column for each instruction.
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# This format may change.
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source-map [
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0x0000123400000123
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0x0000123400000123
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0x0000123400000125
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0x0000123400000134
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0x0000123400000134
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0x0000123400000135
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...
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]
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# The number of slots available for the function.
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# Slots can be named as well for convenience.
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slots [
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x
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y
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z
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]
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# Captured outer environments that are referenced
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environments [
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outer1
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outer2
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]
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# Constants are an array or tuple. For named constants, use a tuple that begins with let
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# For a literal tuple, use (quote tuple), or 'tuple. Without names, constants must be indexed
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# from their number
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constants [
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"hello"
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(let bork 123)
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(let bip 456)
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'(1 2 3)
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(let atuple (1 2 3))
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(567)
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# Functions can be recursively defined.
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(funcdef funcname {
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...
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})
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# Literal FuncEnvs and Functions may be possible later
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]
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}
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