1  ;; ═════════════════════════════════════════════════════════════════
 2  ;; JavaScript Variable Assignment Queries (for chain tracking)
 3  ;; ═════════════════════════════════════════════════════════════════
 4  ;; These patterns capture variable-to-variable assignments that may
 5  ;; form chains back to environment variables.
 6  ;;
 7  ;; Example chain: const env = process.env; const config = env; const x = config.VAR;
 8  
 9  ;; ───────────────────────────────────────────────────────────────────
10  ;; const/let/var b = a (simple chain assignment from identifier)
11  ;; ───────────────────────────────────────────────────────────────────
12  (variable_declarator
13    name: (identifier) @assignment_target
14    value: (identifier) @assignment_source) @assignment
15  
16  ;; ───────────────────────────────────────────────────────────────────
17  ;; b = a (reassignment from identifier)
18  ;; ───────────────────────────────────────────────────────────────────
19  (assignment_expression
20    left: (identifier) @assignment_target
21    right: (identifier) @assignment_source) @assignment