class T{
  static const Bool staticField := true
  new make(){
    this.staticField = staticField
  }
}

Output:

ERR: Internal compiler error
sys::NullErr: Coerce to non-null
  fan.sys.NullErr.makeCoerce (NullErr.java:38)
  compiler::FieldExpr.sameVarAs (Expr.fan:1057)
  compiler::CheckErrors.checkAssign (CheckErrors.fan:989)
  compiler::CheckErrors.visitExpr (CheckErrors.fan:840)
  compiler::Expr.walk (Expr.fan:263)
  compiler::Stmt.walkExpr (Stmt.fan:61)
  compiler::ExprStmt.walkChildren (Stmt.fan:117)
  compiler::Stmt.walk (Stmt.fan:48)
  compiler::Block.walk (Block.fan:89)
  fan.sys.List.each (List.java:534)
  compiler::Block.walk (Block.fan:87)
  compiler::MethodDef.walk (MethodDef.fan:169)
  compiler::TypeDef.walk (TypeDef.fan:311)
  fan.sys.List.each (List.java:534)
  compiler::TypeDef.walk (TypeDef.fan:311)
  compiler::Visitor.walk (Visitor.fan:31)
  fan.sys.List.each (List.java:534)
  compiler::Visitor$.walk (Visitor.fan:31)
  compiler::CompilerStep.walk (CompilerStep.fan:14)
  compiler::CheckErrors.run (CheckErrors.fan:47)
  30 More...

Promoted to ticket #2043 and assigned to brian

thanks for reporting

Renamed from compiler crush to Compiler NPE in static field assignment

Ticket resolved in 1.0.64

changeset