from iast.python.python34 import (parse as _parse, extract_tree, make_pattern,
Templater, pyToStruct, structToPy,
MacroProcessor, ContextSetter, literal_eval,
py_nodes as python_nodes)
from incoq.util.misc import flood_namespace, new_namespace
from . import iast_common
from .iast_common import ExtractMixin
from .unparse import Unparser
P = new_namespace(python_nodes)
# Flood the module namespace with Python nodes and iAST exports.
flood_namespace(globals(), python_nodes)
flood_namespace(globals(), iast_common)
class CommentUnparser(Unparser):
"""Unparser that turns a special COMMENT construct into
an actual lexical comment in the emitted source code.
The recognized pattern has the form:
Expr(Call(Name('COMMENT', Load()),
[Str(<TEXT>)],
[], None, None))
"""
# Dependency injection: Make the unparser use our Struct AST nodes.
pyToStruct, structToPy,
MacroProcessor, ContextSetter,
literal_eval,
py_nodes as python_nodes)
from incoq.util.misc import flood_namespace, new_namespace
from . import iast_common
from .iast_common import ExtractMixin
from .unparse import Unparser
P = new_namespace(python_nodes)
# Flood the module namespace with Python nodes and iAST exports.
flood_namespace(globals(), python_nodes)
flood_namespace(globals(), iast_common)
class CommentUnparser(Unparser):
"""Unparser that turns a special COMMENT construct into
an actual lexical comment in the emitted source code.
The recognized pattern has the form:
Expr(Call(Name('COMMENT', Load()),
[Str(<TEXT>)],
[], None, None))
"""
# filtering by context.
asdl_info = ASDLImporter().run(incast_asdl)
ident_fields = {}
for node, (fields, _base) in asdl_info.items():
for fn, ft, _fq in fields:
if ft == 'identifier':
ident_fields.setdefault(node, []).append(fn)
# Patch the auto-generated node classes.
def mask_init(self, m):
if not all(c == 'b' or c == 'u' for c in m):
raise ValueError('Bad mask string: ' + repr(m))
self.m = m
incast_nodes['mask'].__init__ = mask_init
# As it happens, the implementation of iAST's literal_eval() can be
# reused for IncAST.
literal_eval = _literal_eval
def frozen_literal_eval(tree):
value = literal_eval(tree)
value = freeze(value)
return value
# Flood the module namespace with node definitions and iAST exports.
flood_namespace(globals(), incast_nodes)
flood_namespace(globals(), iast_common)