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annotate python/c3/builder.py @ 251:6ed3d3a82a63

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Added another c3 example. First import attempt
author Windel Bouwman
date Mon, 29 Jul 2013 20:23:13 +0200
parents 240111e0456f
children bd26dc13f270
rev   line source
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1 import ppci
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2 from . import Parser, TypeChecker, Analyzer, CodeGenerator
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3 from . astprinter import AstPrinter
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4 import glob
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6 class Builder:
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7 """
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8 Generates IR-code from c3 source.
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9 Reports errors to the diagnostics system
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10 """
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11 def __init__(self, diag):
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12 self.diag = diag
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13 self.parser = Parser(diag)
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14 self.tc = TypeChecker(diag)
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15 self.al = Analyzer(diag)
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16 self.cg = CodeGenerator()
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17 self.packages = {}
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18
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19 def getPackage(self, pname):
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20 """ package provider for use when analyzing """
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21 if pname in self.packages:
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22 return self.packages[pname]
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23 else:
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24 # Try to lookup package from file
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25 fns = glob.glob('./*/{}.c3'.format(pname))
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26 if fns:
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27 with open(fns[0]) as f:
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28 src = f.read()
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29 self.build(src)
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30 if pname in self.packages:
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31 return self.packages[pname]
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32
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33 def parse(self, src):
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34 pkg = self.parser.parseSource(src)
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35 if not pkg:
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36 return
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37
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38 # TODO: merge the two below?
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39 #AstPrinter().printAst(pkg)
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40 if not self.al.analyzePackage(pkg, self):
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41 return
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42 if not self.tc.checkPackage(pkg):
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43 return
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44
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45 # Store for later use:
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46 self.packages[pkg.name] = pkg
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47 return pkg
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48
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49 def build(self, src):
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50 """ Create IR-code from sources """
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51 pkg = self.parse(src)
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52
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53 # Only return ircode when everything is OK
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54 if pkg:
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55 return self.cg.gencode(pkg)
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