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expose method for updating python model for constants
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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@ -6561,6 +6561,15 @@ class ModelRef(Z3PPObject):
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r.append(FuncDeclRef(Z3_model_get_func_decl(self.ctx.ref(), self.model, i), self.ctx))
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return r
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def update_value(self, x, value):
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"""Update the interpretation of a constant"""
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if is_expr(x):
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x = x.decl()
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if not is_func_decl(x) or x.arity() != 0:
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raise Z3Exception(f"Expecting 0-ary function or constant expression {x}")
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value = _py2expr(value)
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Z3_add_const_interp(x.ctx_ref(), self.model, x.ast, value.ast)
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def translate(self, target):
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"""Translate `self` to the context `target`. That is, return a copy of `self` in the context `target`.
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"""
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