76 lines
1.9 KiB
Python
76 lines
1.9 KiB
Python
# Copyright 2016 Google Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import io
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import sys
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from . import lex
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from . import parser
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from . import ir
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from . import codegen_riscv
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from . import util
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from cement.core.foundation import CementApp
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from cement.core.controller import CementBaseController, expose
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class Controller(CementBaseController):
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class Meta:
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label = 'base'
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arguments = [
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(['-o'], dict(action='store', help='output filename')),
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(['src'], dict(action='store', nargs='*')),
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]
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@expose(hide=True)
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def default(self):
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out = ''
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if not self.app.pargs.src:
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out = self.gen(sys.stdin.read())
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else:
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for src in self.app.pargs.src:
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with open(src, 'r') as f:
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out += self.gen(f.read())
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if self.app.pargs.o:
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with open(self.app.pargs.o, 'w') as f:
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f.write(out)
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else:
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sys.stdout.write(out)
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def gen(self, src):
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tokens = lex.lex(src)
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ast = parser.parse(tokens)
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irf = ir.IRGenerator().dispatch(ast)
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sink = io.StringIO()
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gen = codegen_riscv.RISCVGenerator(sink).dispatch(irf)
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return sink.getvalue()
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class Driver(CementApp):
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class Meta:
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label = 'pl0c'
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base_controller = Controller
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def main():
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with Driver() as app:
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app.run()
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if __name__ == '__main__':
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main()
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