47 lines
1.6 KiB
Python
47 lines
1.6 KiB
Python
from .pystate import PyState
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class DevState(PyState):
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"""
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Version of PyState that allows dumping to .dot files
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+ node id's are generated sequentially to make writing tests easier
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"""
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free_id = 0
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def __init__(self):
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super().__init__()
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@staticmethod
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def new_id() -> str:
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DevState.free_id += 1
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return str(DevState.free_id - 1)
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def dump(self, path: str, png_path: str = None):
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"""Dumps the whole MV graph to a graphviz .dot-file
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Args:
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path (str): path for .dot-file
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png_path (str, optional): path for .png image generated from the .dot-file. Defaults to None.
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"""
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with open(path, "w") as f:
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f.write("digraph main {\n")
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for n in sorted(self.nodes):
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if n in self.values:
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f.write("\"a_%s\" [label=\"%s\"];\n" % (
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n, str(self.values[n]).replace('"', '\\"')))
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else:
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f.write("\"a_%s\" [label=\"\"];\n" % n)
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for i, e in sorted(list(self.edges.items())):
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f.write("\"a_%s\" [label=\"e_%s\" shape=point];\n" % (i, i))
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f.write("\"a_%s\" -> \"a_%s\" [arrowhead=none];\n" % (e[0], i))
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f.write("\"a_%s\" -> \"a_%s\";\n" % (i, e[1]))
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f.write("}")
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if png_path is not None:
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# generate png from dot-file
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bashCommand = f"dot -Tpng {path} -o {png_path}"
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import subprocess
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process = subprocess.Popen(
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bashCommand.split(), stdout=subprocess.PIPE)
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output, error = process.communicate()
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