liquid-java / liquid-java/latte

Add support for nested Ifs

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Dominant language
Java
Stars
3
Forks
1
PR merge metrics
No merged PRs in 30d

Description

Currently, nested ifs always fail to compile with errors of the kind:

Unexpected exception: Cannot invoke "context.UniquenessAnnotation.isGreaterEqualThan(context.Uniqueness)" because "vPerm" is null
Or others related to null states.

We want to be able to support nested If statements like the following:

if (condition) {
     if(condition){
           /*Some code*/
     }
     /*Some code*/        
} else {
     /*Some code*/
}

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the nested-if example from the issue and tracing the compiler path that produces the null-state or vPerm exception. Identify how the outer and inner conditions are represented, then verify that nested If statements compile successfully without those failures.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
compilers
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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