Method visit_ScopedEvalContextModifier

src/jinja2/compiler.py:1988–1998

(
        self, node: nodes.ScopedEvalContextModifier, frame: Frame
    )

                setattr(frame.eval_ctx, keyword.key, val)

    def visit_ScopedEvalContextModifier(
        self, node: nodes.ScopedEvalContextModifier, frame: Frame
    ) -> None:
        old_ctx_name = self.temporary_identifier()
        saved_ctx = frame.eval_ctx.save()
        self.writeline(f"{old_ctx_name} = context.eval_ctx.save()")
        self.visit_EvalContextModifier(node, frame)
        for child in node.body:
            self.visit(child, frame)
        frame.eval_ctx.revert(saved_ctx)
        self.writeline(f"context.eval_ctx.revert({old_ctx_name})")