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annotate python/c3/builder.py @ 272:e64bae57cda8

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refactor ir
author Windel Bouwman
date Sat, 31 Aug 2013 17:58:54 +0200
parents 7416c923a02a
children 1c7c1e619be8
rev   line source
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1 import logging
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2 import ppci
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3 from . import Parser, TypeChecker, Analyzer, CodeGenerator
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4 from . astprinter import AstPrinter
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5 import glob
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6
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7 class Builder:
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8 """
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9 Generates IR-code from c3 source.
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10 Reports errors to the diagnostics system
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11 """
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12 def __init__(self, diag):
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13 self.pack_dir = None
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14 self.logger = logging.getLogger('c3')
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15 self.diag = diag
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16 self.parser = Parser(diag)
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17 self.tc = TypeChecker(diag)
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18 self.al = Analyzer(diag)
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19 self.cg = CodeGenerator()
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20 self.packages = {}
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21
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22 def getPackage(self, pname):
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23 """ package provider for use when analyzing """
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24 if pname in self.packages:
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25 return self.packages[pname]
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26 else:
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27 # Try to lookup package from file
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28 fns = glob.glob('./**/{}.c3'.format(pname))
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29 if fns:
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30 with open(fns[0]) as f:
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31 src = f.read()
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32 self.build(src)
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33 if self.pack_dir:
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34 fns = glob.glob('{}/{}.c3'.format(self.pack_dir, pname))
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35 if fns:
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36 with open(fns[0]) as f:
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37 src = f.read()
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38 self.build(src)
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39 if pname in self.packages:
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40 return self.packages[pname]
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41
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42 def parse(self, src):
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43 pkg = self.parser.parseSource(src)
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44 if not pkg:
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45 return
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46
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47 # TODO: merge the two below?
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48 #AstPrinter().printAst(pkg)
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49 if not self.al.analyzePackage(pkg, self):
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50 return
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51 if not self.tc.checkPackage(pkg):
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52 return
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53
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54 # Store for later use:
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55 self.packages[pkg.name] = pkg
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56 return pkg
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57
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58 def build(self, src, pack_dir=None):
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59 """ Create IR-code from sources """
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60 self.pack_dir = pack_dir
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61 pkg = self.parse(src)
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62
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63 # Only return ircode when everything is OK
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64 if pkg:
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65 return self.cg.gencode(pkg)
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66