Questions tagged [compiler-construction]

Please use the tag compiler-construction for inquiries related to writing compilers or understanding the intricate mechanisms of compilers. Avoid using it for questions regarding how to use specific compilers or troubleshooting compilation errors.

Exploring the TypeScript compiler API to read and make updates to objects is an interesting

I'm delving into the world of the typescript compiler API and it seems like there's something I am overlooking. I am trying to find a way to update a specific object in a .ts file using the compiler API. Current file - some-constant.ts export co ...

Can you explain the role of [Yield, Await, In, Return] in EcmaScript syntax?

EcmaScript production rules often include the use of "modifiers" such as: [Yield, Await, In, Return] Here are a couple of examples: ArrayLiteral[Yield, Await]: ... ElementList[Yield, Await]: ... AssignmentExpression[+In, ?Yield, ?Await] I have look ...

What causes the unrecognized command line error to occur while using distutils to build a C extension?

When attempting to construct a source using the python's distutils, I encountered an issue. I crafted a basic setup.py following guidance from this example, and executing the build as recommended resulted in success: python setup.py build Now, it is feas ...

What makes TS unsafe when using unary arithmetic operations, while remaining safe in binary operations?

When it comes to arithmetic, there is a certain truth that holds: if 'a' is any positive real number, then: -a = a*(-1) The Typescript compiler appears to have trouble reproducing arithmetic rules in a type-safe manner. For example: (I) Working as expec ...

Is there a potential issue with PHP operator precedence?

Upon evaluation of the following code: var_dump(null != $a = 15); var_dump($a); The output is as follows: bool(true) int(15) Have you ever wondered why this script does not produce an error? This is because the != (not equal operator) takes precedence ...

Leverage the TypeScript Compiler API to verify whether an interface property signature permits the value of undefined (for example, prop1?:

Currently, I am utilizing the TypeScript Compiler API to extract Interface information in order to generate database tables. The process is functioning effectively, however, I am seeking a method to determine if certain fields are nullable, or as it is phr ...