Abstract
Historically, concerns about aliasing and confinement in object-oriented languages arose from the Software Engineering or Program Verification viewpoint: spaghetti-data resulted in programs too delicate to modify or “… we could prove Q if only we knew that x is not aliased”. By and large, these issues arose in the context of sequential systems. Nowadays, exploiting multi-core architectures generally requires concurrent programming. The issues above become magnified: in software engineering terms updates to aliased objects can now lead to unpredictable data races rather than resulting in hard-to-modify but deterministic code. Program reasoning also became harder as there are more ways to break encapsulation. For example ‘x+=2;’ and ‘x+=1;x+=1;’ are no longer equivalent.
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References
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Mycroft, A. (2013). Aliasing Visions: Ownership and Location. In: Clarke, D., Noble, J., Wrigstad, T. (eds) Aliasing in Object-Oriented Programming. Types, Analysis and Verification. Lecture Notes in Computer Science, vol 7850. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-36946-9_18
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DOI: https://doi.org/10.1007/978-3-642-36946-9_18
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