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tools/generate-wire: allow constant multiplier in fields.

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Not just len*u8, but 1254*u8 for explicit fixed-length arrays. 

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2017-03-29 21:30:15 +10:30
parent 185a649572
commit 9b6753173c
1 changed files with 9 additions and 4 deletions
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13
tools/generate-wire.py
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@@ -88,13 +88,14 @@ sizetypemap = {
1: FieldType('u8')
}
# It would be nicer if we had put '*1' in spec and disallowed bare lenvar.
# In practice we only recognize raw lenvar when it's the previous field.
# It would be nicer if we had put '*u8' in spec and disallowed bare lenvar.
# In practice we only recognize lenvar when it's the previous field.
# size := baresize | arraysize
# baresize := simplesize | lenvar
# simplesize := number | type
# arraysize := lenvar '*' simplesize
# arraysize := length '*' type
# length := lenvar | number
class Field(object):
def __init__(self, message, name, size, comments, prevname):
self.message = message
@@ -106,7 +107,11 @@ class Field(object):
# If it's an arraysize, swallow prefix.
if '*' in size:
self.lenvar = size.split('*')[0].replace('-','_')
number = size.split('*')[0]
if number == prevname:
self.lenvar = number.replace('-','_');
else:
self.num_elems = int(number)
size = size.split('*')[1]
else:
if size == prevname: