--- parse tree ---
[ Code
    "test/typ/meta/ref-00.typ"
    ( line 1 , column 2 )
    (Let
       (BasicBind (Just (Identifier "test")))
       (FuncExpr
          [ NormalParam (Identifier "x") , NormalParam (Identifier "y") ]
          (Block
             (CodeBlock
                [ If
                    [ ( Equals (Ident (Identifier "x")) (Ident (Identifier "y"))
                      , Block (Content [ Text "\9989" ])
                      )
                    , ( Literal (Boolean True)
                      , Block
                          (Content
                             [ Text "\10060"
                             , Text "("
                             , Code
                                 "test/typ/meta/ref-00.typ"
                                 ( line 1 , column 47 )
                                 (FuncCall
                                    (Ident (Identifier "repr"))
                                    [ NormalArg (Ident (Identifier "x")) ])
                             , Space
                             , Text "/"
                             , Text "="
                             , Space
                             , Code
                                 "test/typ/meta/ref-00.typ"
                                 ( line 1 , column 59 )
                                 (FuncCall
                                    (Ident (Identifier "repr"))
                                    [ NormalArg (Ident (Identifier "y")) ])
                             , Text ")"
                             ])
                      )
                    ]
                ]))))
, SoftBreak
, Code
    "test/typ/meta/ref-00.typ"
    ( line 2 , column 2 )
    (Set
       (Ident (Identifier "heading"))
       [ KeyValArg (Identifier "numbering") (Literal (String "1.")) ])
, ParBreak
, Heading 1 [ Text "Introduction" ]
, Code
    "test/typ/meta/ref-00.typ" ( line 4 , column 16 ) (Label "intro")
, SoftBreak
, Text "See"
, Space
, Ref "setup" (Literal Auto)
, Text "."
, ParBreak
, Heading 2 [ Text "Setup" ]
, Code
    "test/typ/meta/ref-00.typ" ( line 7 , column 10 ) (Label "setup")
, SoftBreak
, Text "As"
, Space
, Text "seen"
, Space
, Text "in"
, Space
, Ref "intro" (Literal Auto)
, Text ","
, Space
, Text "we"
, Space
, Text "proceed"
, Text "."
, ParBreak
]
--- evaluated ---
document(body: { text(body: [
]), 
                 parbreak(), 
                 heading(body: text(body: [Introduction]), 
                         level: 1, 
                         numbering: "1."), 
                 <intro>, 
                 text(body: [
See ]), 
                 ref(supplement: auto, 
                     target: <setup>), 
                 text(body: [.]), 
                 parbreak(), 
                 heading(body: text(body: [Setup]), 
                         level: 2, 
                         numbering: "1."), 
                 <setup>, 
                 text(body: [
As seen in ]), 
                 ref(supplement: auto, 
                     target: <intro>), 
                 text(body: [, we proceed.]), 
                 parbreak() })