FlowscopeDocs

T301

type field has no type annotation

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View as Markdownllms.txt indexFull text for LLMs

Severity Error

Every field of a user type needs an explicit type after a colon. Field types are never inferred, because the record layout is fixed before the script runs.

Add : Type to the field.

Failing example

Flowscope Script
script "Swing levels"
data chart = subscribe(data.ohlcv)
type Swing {
  price
  index: int
}
state last: Swing? = null
plot level = plot.line(title: "Last swing high", style: linestyle.step)
on chart.close {
  let p = ta.pivotHigh(chart.high, 5, 5)
  if p != null {
    last = Swing { price: p, index: chart.index }
  }
  let s = last
  level.plot(s != null ? s.price : null)
}

Fixed example

Flowscope Script
script "Swing levels"
data chart = subscribe(data.ohlcv)
type Swing {
  price: float
  index: int
}
state last: Swing? = null
plot level = plot.line(title: "Last swing high", style: linestyle.step)
on chart.close {
  let p = ta.pivotHigh(chart.high, 5, 5)
  if p != null {
    last = Swing { price: p, index: chart.index }
  }
  let s = last
  level.plot(s != null ? s.price : null)
}