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[FEATURE] Improve Error handling for semantic analysis

Abierto
  • ¿Algo no está bien?
#11 0 comentarios 0 reacciones 0 asignados Ver en GitHub

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Evaluación

Dificultad
5/5
Tiempo estimado
Más de una semana
Aptitud para principiantes
18/100
Tipo de issue
Nueva funcionalidad
Claridad
Bastante claro
Estado de actividad
Estancado
Stack tecnológico
python
Área
compilers

Línea de trabajo

The payload names no files, so start by finding where the semantic analyser raises and reports its first error in the pyqasm package. The open design questions are how to collect errors up to a threshold, what state to give an invalid variable like a in the example, and how to format codes such as OSA_ERR_123. The issue has no comments or linked work and needs maintainer decisions before any patch. Treat it as a discussion starter, not a first task.

Escrito por el modelo de indexación a partir del texto del issue.

Descripción

enhancement
Feature Description
Error Emission
  • Currently, the semantic analyser stops at the first error and emits out an error message to the user about the about location and the error.
  • This might be good for a small number of semantic errors but for a lot of errors, the user experience would degrade. They would have to run the analyser as many times as the number of errors which is not desirable.
  • Moreover, if the user has a very large number of errors, spitting out all errors at once could be confusing.
  • A good feature would be to add an error threshold in the analyser. With this, we can keep a list of errors and as soon as the number of errors reach this predefined threshold, we stop and emit all of these errors.
Error Codes
  • Adding unique identifiers to the messages would help locate the line of code quicker than parsing through the python traceback. Eg - OSA_ERR_123: <<error message>> ( OSA: openqasm semantic analyser )
Implementation (Optional)
OPENQASM 3.0;
array[int[32], 2, 2] my_arr = { {1,2}, {3,4}};
int[32] a = my_arr[0]; // this is semantically incorrect 

qubit q;
if( a == 4) { // what do we refer as "a" here? 
    for int[32] i in [:a] {
         rx(pi * i ) q;
    }
}

In the above example, do we treat a as undefined or invalid? What does "invalid" exactly mean here? How to continue semantic analysis in this erroneous state?

  • What is a good threshold level for errors?
Lenguaje dominante
Python
Estrellas
29
Forks
33
Merge medio
2 d 4 h
PR fusionados (30 d)
15

Preparar el entorno

Primeros pasos

  1. Lee el issue completo y luego la guía de contribución del proyecto.
  2. Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
  3. Haz un fork del repositorio y trabaja en una rama.
  4. Abre un pull request que haga referencia al número del issue.

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