implodeArity

Function: implodeArity { blksIn argsIn blksOut argsOut typ -> arity }

file: 10-C-utils.muf
package: muf
status: alpha

This function builds function$s.arity values up out of their logical fields:

• arity: Integer obtained by doing fn$s.arity on some function.
• blksIn: Integer giving number of stackblocks read by function.
• argsIn: Integer giving number of nonblock arguments read by function.
• blksOut: Integer giving number of stackblocks returned by function.
• argsOut: Integer giving number of nonblocks arguments returned by function.
• typ: Integer marking special function types:

  0: Normal function.
  1: Function that never returns.
  2: Operator that modifies program counter.
  3: Other.
  4: CALLI.
  5: Q            Function returns unpredictable number of args.
  6: START_BLOCK  Special hack for '[' operator.
  7: END_BLOCK    Special hack for '|' operator.
  8: EAT_BLOCK    Special hack for ']' operator.
  9: CALLA        Special hack for JOB_OP_CALLA bytecode.
  

The above integer typ values are subject to change in future releases: To avoid having your code break in future releases, it is best to use the corresponding constants:

0  arityNormal
1  arityExit
2  arityBranch
3  arityOther
4  arityCalli
5  arityQ
6  arityStartBlock
7  arityEndBlock
8  arityEatBlock
9  arityCalla

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