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tracer/structure: improve performance

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Use local vars in the parser. This way we can make them static methods.
This commit is contained in:
Stefan Sauer 2016-12-19 22:37:20 +01:00
parent b2576972ce
commit 64ce582313
1 changed files with 12 additions and 17 deletions
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29
tracer/tracer/structure.py
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@ -14,16 +14,13 @@ class Structure(object):
def __init__(self, text):
self.text = text
self.name = None
self.types = {}
self.values = {}
self.pos = 0
self._parse(self.text)
self.name, self.types, self.values = Structure._parse(text)
def __repr__(self):
return self.text
def _find_eos(self, s):
@staticmethod
def _find_eos(s):
# find next '"' without preceeding '\'
l = 0
#logger.debug("find_eos: '%s'", s)
@ -37,7 +34,10 @@ class Structure(object):
#logger.debug("... : '%s'", s)
return -1
def _parse(self, s):
@staticmethod
def _parse(s):
types = {}
values = {}
scan = True
#logger.debug("===: '%s'", s)
# parse id
@ -45,28 +45,23 @@ class Structure(object):
if p == -1:
p = s.index(';')
scan = False
self.name = s[:p]
name = s[:p]
# parse fields
while scan:
s = s[(p + 2):] # skip 'name, ' / 'value, '
self.pos += p + 2
#logger.debug("...: '%s'", s)
p = s.index('=')
k = s[:p]
if not s[p + 1] == '(':
self.pos += p + 1
raise ValueError
s = s[(p + 2):] # skip 'key=('
self.pos += p + 2
p = s.index(')')
t = s[:p]
s = s[(p + 1):] # skip 'type)'
self.pos += p + 1
if s[0] == '"':
s = s[1:] # skip '"'
self.pos += 1
p = self._find_eos(s)
p = Structure._find_eos(s)
if p == -1:
raise ValueError
v = s[:(p - 1)]
@ -89,6 +84,6 @@ class Structure(object):
v = v[1:-1]
elif t in INT_TYPES:
v = int(v)
self.types[k] = t
self.values[k] = v
self.pos += p + 1
types[k] = t
values[k] = v
return (name, types, values)