Commit 341223c4 authored by Xavier Thompson's avatar Xavier Thompson

Ensure subscript assignment value is correctly locked in 'a[b] = value'

parent c5a1d4f0
......@@ -5960,6 +5960,12 @@ class SingleAssignmentNode(AssignmentNode):
self.lhs = self.lhs.analyse_target_types(env)
self.lhs.gil_assignment_check(env)
if self.lhs.is_subscript and self.lhs.base.type.is_cyp_class:
if self.lhs.type.is_const: # type of the formal 'value' argument of __setitem__
self.rhs.ensure_rhs_locked(env, is_dereferenced = True)
else:
self.rhs.ensure_lhs_locked(env, is_dereferenced = True)
else:
self.rhs.ensure_rhs_locked(env)
self.lhs.ensure_lhs_locked(env, is_top_lhs = True)
unrolled_assignment = self.unroll_lhs(env)
......
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