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https://github.com/justinian/jsix.git
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186724e751
This change adds a new interface DSL for specifying objects (with methods) and interfaces (that expose objects, and optionally have their own methods). Significant changes: - Add the new scripts/definitions Python module to parse the DSL - Add the new definitions directory containing DSL definition files - Use cog to generate syscall-related code in kernel and libj6 - Unify ordering of pointer + length pairs in interfaces
66 lines
1.6 KiB
Python
66 lines
1.6 KiB
Python
class NotFound(Exception): pass
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class Context:
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def __init__(self, path, verbose=False):
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if isinstance(path, str):
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self.__paths = [path]
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else:
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self.__paths = path
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self.__closed = set()
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self.__verbose = verbose
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self.__deps = {}
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self.objects = dict()
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self.interfaces = dict()
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verbose = property(lambda self: self.__verbose)
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def find(self, filename):
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from os.path import exists, isabs, join
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if exists(filename) or isabs(filename):
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return filename
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for path in self.__paths:
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full = join(path, filename)
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if exists(full):
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return full
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raise NotFound(filename)
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def parse(self, filename):
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pending = set()
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pending.add(filename)
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from .parser import Lark_StandAlone as Parser
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from .transformer import DefTransformer
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objects = {}
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interfaces = {}
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while pending:
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name = pending.pop()
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self.__closed.add(name)
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path = self.find(name)
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parser = Parser(transformer=DefTransformer(name))
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imps, objs, ints = parser.parse(open(path, "r").read())
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objects.update(objs)
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interfaces.update(ints)
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self.__deps[name] = imps
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pending.update(imps.difference(self.__closed))
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from .types import ObjectRef
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ObjectRef.connect(objects)
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self.objects.update(objects)
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self.interfaces.update(interfaces)
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def deps(self):
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return {self.find(k): tuple(map(self.find, v)) for k, v in self.__deps.items()}
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