Recent questions tagged abstract

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abstract class - The method *****is undefined for the type***** in Java

I'm trying to call a method from an abstract class Sprite in another package, but I got "The method getSymbol() is ... don't know how to fix it. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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abstract syntax tree - Getting AST for C++?

I'm looking to get an AST for C++ that I can then parse with an external program. What programs are ... its corresponding C# wrapper test bed. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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abstract syntax tree - How to get lineno of "end-of-statement" in Python ast

I am trying to work on a script that manipulates another script in Python, the script to be modified ... with Python standard library? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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abstract syntax tree - Can I get AST from live scala code?

I said "live code" because I mean not from text source files or source strings, but from partialFunctions / ... into the compiler, hmmmm... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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abstract syntax tree - How to get source corresponding to a Python AST node?

Python AST nodes have lineno and col_offset attributes, which indicate the beginning of respective code range. Is there ... A 3rd party library? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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abstract class - Python different behaviour with abstractmethod

I have two classes inheriting from the same parent P: from abc import ABCMeta, abstractmethod class P(object): ... can I explain this behaviour? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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abstract syntax tree - Tracing Python expression evaluation step by step

I'm trying to write Python expression evaluation visualizer, that will show how Python expressions are evaluated ... in Jupyter environment. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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413 views

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abstract syntax tree - AST interpreter?

I have an AST (abstract syntax tree) and now i want to test my compiler by giving it 2 or more numbers and ... operations in the end? Thank you See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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abstract class - Equivalent of NotImplementedError for fields in Python

In Python 2.x when you want to mark a method as abstract, you can define it like so: class Base: def ... (rich comparisons) it seemed abusive. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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abstract - Swift - class method which must be overridden by subclass

Is there a standard way to make a "pure virtual function" in Swift, ie. one that must be overridden by every ... , causes a compile time error? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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641 views

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abstract syntax tree - What is JavaScript AST, how to play with it?

Abstract Syntax Tree.. I always heard that compile to SpiderMonkey AST on Github. So, is that a actual standard of ... How can I play with that? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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