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Change the serialization format to be (hopefully) clearer.

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This commit is contained in:
Chris Pressey 2018-04-04 17:05:48 +01:00
parent efe8859209
commit cab84b8ebe
2 changed files with 11 additions and 35 deletions
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14
src/sixtypical/fallthru.py
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@ -73,7 +73,7 @@ class FallthruAnalyzer(object):
if routine.name not in self.fall_out_map:
self.fall_out_map[routine.name] = None
routine_list = []
roster = []
pending_routines = copy(self.fall_out_map)
while pending_routines:
# Pick a routine that is still pending to be serialized.
@ -87,13 +87,11 @@ class FallthruAnalyzer(object):
chains.sort(key=len, reverse=True)
routines = chains[0]
# Remove (r1,r2,...,rn) from R and append them to L in that order.
# Mark (r1,r2,...rn-1) as "will have their final goto removed."
# Append (r1,r2,...,rn) to the roster and remove r1,r2,...rn from R.
# A sublist like this appearing in the roster has meaning
# "optimize the final goto out of all but the last routine in the sublist".
for r in routines:
del pending_routines[r]
if r == routines[-1]:
routine_list.append(['retain', r])
else:
routine_list.append(['fallthru', r])
roster.append(routines)
return routine_list
return roster

32
tests/SixtyPical Fallthru.md
View File

@ -73,7 +73,6 @@ through to it.
= *** serialization:
= [
= [
= "retain",
= "main"
= ]
= ]
@ -97,18 +96,13 @@ If main does a `goto foo`, then it can fall through to `foo`.
= *** serialization:
= [
= [
= "fallthru",
= "main"
= ],
= [
= "retain",
= "main",
= "foo"
= ]
= ]
More than one routine can fall through to a routine.
If main does a `goto foo`, then it can fall through to `foo`.
More than one routine can fall through to a routine. We pick one
of them to fall through, when selecting the order of routines.
| define foo routine trashes a, z, n
| {
@ -134,15 +128,10 @@ If main does a `goto foo`, then it can fall through to `foo`.
= *** serialization:
= [
= [
= "fallthru",
= "main"
= ],
= [
= "retain",
= "main",
= "foo"
= ],
= [
= "retain",
= "bar"
= ]
= ]
@ -188,15 +177,10 @@ fall through to the other.
= *** serialization:
= [
= [
= "retain",
= "main"
= ],
= [
= "fallthru",
= "bar"
= ],
= [
= "retain",
= "bar",
= "foo"
= ]
= ]
@ -227,15 +211,12 @@ routine.
= *** serialization:
= [
= [
= "retain",
= "main"
= ],
= [
= "retain",
= "bar"
= ],
= [
= "retain",
= "foo"
= ]
= ]
@ -265,15 +246,12 @@ because we don't necessarily know what actual routine the vector contains.
= *** serialization:
= [
= [
= "retain",
= "main"
= ],
= [
= "retain",
= "bar"
= ],
= [
= "retain",
= "foo"
= ]
= ]