Questions tagged [implementation]
For questions regarding the implementation of a feature in coding languages.
80 questions
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What are the pros and cons of dominator Phis vs predecessor Phis?
Phi nodes join data flow based on incoming control flow edges.
Determination of incoming control flow can be encoded either by directly listing predecessors or by listing blocks dominating ...
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What makes a language "golfy"?
For those not in the know, a golfing language is a language designed such that its programs can be written with as few bytes as possible.
With that in mind, what metric, what objective, do language ...
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Transforming imperative languages to continuation-passing style for evaluation
Continuation-passing style is a useful technique for implementing exceptions, coroutines, non-local returns, async/await, and ...
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Function call in single pass compiler for B
I've been implementing a B compiler for x86 assembly for a while now and have been asking one or two questions in Retrocomputing.
My tools for implementing it is using flex/bison with C.
Recently I've ...
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If this is the actual behavior of c preprocessor, then how should I interpret the standard if I were to implement it?
In the C standard, there's this:
A parameter in the replacement list, ..., is replaced by the corresponding argument after all macros contained therein have been expanded.
It's in Section 6.10.x.x, ...
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Delimited continuations and foreign functions
Guile Scheme has had support for delimited continuations for over a decade. Much was written about it in a 2012 blog post: guile and delimited continuations.
They have a limitation: continuations that ...
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What's the rationale behind switch/yield in Java?
After upgrading to Java 21, I realized that the promised switch expression has several surprising properties. The most surprising part is the yield keyword which ...
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Is there a guide for implementing exceptions in languages with explicit memory management?
I'm looking for a guide for implementing exceptions in a language with explicit memory management like C++. However, the language's type system and exception handling semantics are incompatible with C+...
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How is a python namespace implemented in terms of memory under Cpython implementation? [closed]
I am confused about the implementation of a global namespace in python .
How are variable names mapped as keys to the objects they reference as values ,since namespace is implemented as a dictionary? ...
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How do languages where multiple files make up a module handle combining them into one translation/compilation unit?
Mainly, I want to know what existing languages/implementations that use this sort of multi-file module structure do.
In my language, modules can consist of multiple files. (For now I don't plan on ...
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Is there a downside to using offsets instead of raw pointers in a virtual machine?
Say I'm designing a virtual machine for a bytecode compiler/interpreter, using C as the implementation language. Some kind of “tagged” representation of values is simplest for this language, where ...
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How to implement type checking of generics?
I am implementing a toy language, for learning. As of now, it has a Rust-like syntax and I would like to implement monomorphization of Generic types.
After parsing, I have an Abstract Syntax Tree. Now,...
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What are the cons of inlining then optimizing and then reverse inlining?
In many programming languages, not all functions may be inlined. However, assuming that a language is designed in such a way that all functions may be inlined, what the disadvantages of inlining all ...
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How would you implement an auto-correct feature for misspelled class attributes?
Suppose that we are working with an object oriented compiled language, such as somthing C-flavored or Java-flavored.
There is a class named string
...
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Can total (primitive) corecursion be implemented?
I'm trying to understand how to implement corecursion in a total functional context. I've already implemented recursion using standard techniques (for loops) but I ...
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