Go Rust Jsonnet Language Server

This is a jsonnet language server using the go-jsonnet implementation to generate the AST and evaluate jsonnet code

For a small list of example videos head to the Showcase page.

This repository contains 3 components:

Roadmap

• [-] Completion
  • Global completion
  • Index completion
  • Value preview
    • Make the Object preview pretty
  • [-] Complete “everything”
    • Find the remaining cases where completion does not work/tries to complete the wrong node
  • Stdlib
  • [-] Advanced Stdlib completion
    • extVar completion
    • Return values
    • Function parameters from std.map
  • Complete Loops
    • Use std.map for loops
  • All jsonnet imports
    • Properly handle completion if “/” is already in the string
  • self
  • super
    • Fix super not working if it never had an index
  • [-] Keyword completion
    • Only complete if valid
    • Add missing keywords
  • [-] Conditionals
    • Actually evaluate the condition
  • Default parameters
  • Builder pattern
    • Check extremely complex patterns
  • Array access
  • Unused function arguments
• Semantic tokens
• [-] Inlay Hints
  • Function parameters
    • Only update if needed
  • Indices
  • Name after long objects
• Goto definition
  • Goto file from import string
  • Can goto everything we can complete
• Find reference
  • Import strings
  • Can find references for all identifiers we can goto
• Rename
  • Rename imports if file is renamed
  • Rename file if import is renamed
  • Can rename all identifiers we can find the reference of
• Signature Help
• Docsonnet support
  • How to handle the license issues? Docsonnet does not have an open source license
    • Just evaluate it
  • Handle the stdlib the same as docsonnet?
  • Signature help parameters
• [-] AST repair
• Commands
  • Evaluate file
• Missing LSP features
  • Code actions
  • Code Lense?
  • Hover
  • Document highlight
  • Document/Workspace symbols
  • Folding
  • Call hierachie
  • File operation support for automatic refactoring (like renaming imports)
• Improve performance
  • Test rust2go mem
  • More multithreading
• More tests
  • Fix ignored tests
• (Major) Code cleanup
  • Once the prototyping phase is over

Known Issues

• (Go)-Jsonnet bugs
  • If you import foo.libsonnet and there is also a foo.libsonnet in the current working directory, evaluating the snippet will result in a diagnostic error
    • To reproduce cat mydir/bar.jsonnet | jsonnet --jpath mydir -
  • If there is a circular dependency go-jsonnet emits a strange error
• Eval diagnostics are always use the state from disk and not from memory

Jsonnet Quirks

• tailstrict
  • not part of the spec apart from the reserved keyword
  • no documentation at all
  • in foo(myArg()) tailstrict forces myArg to be evaluated before the body, even if it is unused