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comparison python/ppci/c3/builder.py @ 300:158068af716c

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yafm
author Windel Bouwman
date Tue, 03 Dec 2013 18:00:22 +0100
parents python/c3/builder.py@917eab04b8b7
children 6753763d3bec
comparison
equal deleted inserted replaced
299:674789d9ff37 300:158068af716c
1 import logging
2 import ppci
3 from .parser import Parser
4 from .analyse import TypeChecker, Analyzer
5 from .codegenerator import CodeGenerator
6 from .analyse import AddScope
7
8
9 class Builder:
10 """
11 Generates IR-code from c3 source.
12 Reports errors to the diagnostics system.
13 """
14 def __init__(self, diag):
15 self.logger = logging.getLogger('c3')
16 self.diag = diag
17 self.parser = Parser(diag)
18 self.tc = TypeChecker(diag)
19 self.al = Analyzer(diag)
20 self.cg = CodeGenerator()
21
22 def checkSource(self, srcs, imps=[]):
23 """ Performs syntax and type check. """
24 iter(srcs)
25 iter(imps)
26
27 def doParse(srcs):
28 for src in srcs:
29 pkg = self.parser.parseSource(src)
30 if pkg:
31 yield pkg
32 else:
33 self.ok = False
34 s_pkgs = set(doParse(srcs))
35 i_pkgs = set(doParse(imps))
36 all_pkgs = s_pkgs | i_pkgs
37 # Fix scopes:
38
39 def doF(f, pkgs):
40 for pkg in pkgs:
41 if f(pkg):
42 yield pkg
43 else:
44 self.ok = False
45 all_pkgs = set(doF(AddScope(self.diag).addScope, all_pkgs))
46 # TODO: fix error handling better
47
48 def doA(pkgs):
49 packages = {pkg.name: pkg for pkg in pkgs}
50 for pkg in pkgs:
51 if self.al.analyzePackage(pkg, packages):
52 yield pkg
53 else:
54 self.ok = False
55 all_pkgs = set(doA(all_pkgs))
56 all_pkgs = set(doF(self.tc.checkPackage, all_pkgs))
57 return all_pkgs & s_pkgs
58
59 def build(self, srcs, imps=[]):
60 """ Create IR-code from sources """
61 self.logger.info('Starting build with {}'.format(srcs))
62 self.ok = True
63 for pkg in self.checkSource(srcs, imps):
64 # Only return ircode when everything is OK
65 if self.ok:
66 yield self.cg.gencode(pkg)