Description

kmr-srbh

opened on Sep 4, 2024

Issue body actions

'a' = 1

(base) saurabh-kumar@Awadh:~/Projects/System/lpython$ lpython ./examples/example.py
semantic error: Unsupported type in check_is_assign_to_input_param()
 --> ./examples/example.py:1:1
  |
1 | 'a' = 1
  | ^^^ 


Note: Please report unclear or confusing messages as bugs at
https://github.com/lcompilers/lpython/issues.

I think the invalid assignment above should have been caught earlier and reported with a better error message.

Activity

1. kmr-srbh

   changed the title [-]bug: catch invalid assignments and throw a beautiful error message[/-] [+]bug: catch invalid assignments and throw a better error message[/+] on Sep 10, 2024
2. amritamishra01 commented on Nov 24, 2025

   

   amritamishra01

   on Nov 24, 2025

   More actions

   Hi! I'd like to work on this issue.

   I went through the example and reproduced the error. The assignment to a literal ('a' = 1) should indeed be caught earlier in the semantic analysis, and I’d like to improve the error handling to provide a clearer message.

   I’ll start by checking the relevant assignment validation logic and propose a fix.
   Please let me know if there are any specific guidelines or preferences before I begin.

   Thanks!

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