One possible implementation could generate a mapping from all possible symbols that refer to something (tk_fletref, tk_varref etc.) to the AST node / symbol they refer to, and from that node to an Array[AST] which holds all the references to the definition symbol.
This feature resolves a list of references to the symbol under the cursor.
See the spec:
textDocument/references.One possible implementation could generate a mapping from all possible symbols that refer to something (
tk_fletref,tk_varrefetc.) to the AST node / symbol they refer to, and from that node to anArray[AST]which holds all the references to the definition symbol.