Recognise key & value local references in `for` expression

[radeksimko]

Language Server Version

v0.32.6

Problem Statement

Currently local references such as key and val inside of a "for expression" such as [for key, val in var.map: key => val] are not recognised in any context:

• completion
• hover
• semantic highlighting
• go-to-definition/references

Attempted Solutions

No response

Proposal

• Provide completion for declared key & value references on the RHS of :
• Provide hover for key & value references (both LHS and RHS) to help user understand that e.g. map keys are always strings and list/tuple indexes are always numbers
• Provide semantic tokens for key & value references (both LHS and RHS)
• Provide go-to-definition from key & value references on the RHS of : to LHS declarations
• Provide go-to-references from key & value references on the LHS of : to the RHS

Related LSP methods

No response

References

No response

Help Wanted

• I'm interested in contributing a fix myself

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