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1 import hashlib
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2 # Import compiler components:
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3 from . import lexer
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4 from . import parser
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5 from .codegenerator import CodeGenerator
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6 from .nodes import ExportedSymbol
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7
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8 class Compiler:
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9 versie = '0.9.3'
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10
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11 def __repr__(self):
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12 return 'LCFOS compiler {0}'.format(self.versie)
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13
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14 def generateSignature(self, src):
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15 return hashlib.md5(bytes(src,encoding='ascii')).hexdigest()
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16
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17 def compilesource(self, src):
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18 """ Front end that handles the stages: """
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19 tokens = lexer.tokenize(src) # Lexical stage
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20 ast = parser.Parser(tokens).parseModule() # Parse a module
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21 CodeGenerator().generatecode(ast)
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22 # Attach a signature:
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23 ast.signature = self.generateSignature(src)
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24 # Generate exported symbols:
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25 ast.exports = []
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26 for proc in ast.procs:
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27 if proc.public:
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28 sym = ExportedSymbol(proc.name, proc.typ)
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29 sym.imageoffset = proc.entrypoint
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30 ast.exports.append(sym)
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31
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32 return ast
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33
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