64 lines
2.0 KiB
Plaintext
64 lines
2.0 KiB
Plaintext
import Lean.Data.Json
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import Lean.Environment
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import Pantograph.Version
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import Pantograph
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-- Main IO functions
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open Pantograph
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unsafe def loop : Subroutine Unit := do
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let command ← (← IO.getStdin).getLine
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if command.trim.length = 0 then return ()
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match parse_command command with
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| .error error =>
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let error := Lean.toJson ({ error := "json", desc := error }: Commands.InteractionError)
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IO.println (toString error)
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| .ok command =>
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let ret ← execute command
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IO.println <| toString <| ret
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loop
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unsafe def main (args: List String): IO Unit := do
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-- NOTE: A more sophisticated scheme of command line argument handling is needed.
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-- Separate imports and options
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if args == ["--version"] then do
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println! s!"{version}"
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return
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Lean.enableInitializersExecution
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Lean.initSearchPath (← Lean.findSysroot)
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let options? ← args.filterMap (λ s => if s.startsWith "--" then .some <| s.drop 2 else .none)
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|>.foldlM Lean.setOptionFromString'' Lean.Options.empty
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|>.run
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let options ← match options? with
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| .ok options => pure options
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| .error e => throw $ IO.userError s!"Options cannot be parsed: {e}"
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let imports:= args.filter (λ s => ¬ (s.startsWith "--"))
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let env ← Lean.importModules
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(imports := imports.map (λ str => { module := str_to_name str, runtimeOnly := false }))
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(opts := {})
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(trustLevel := 1)
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let context: Context := {
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}
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let coreContext: Lean.Core.Context := {
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currNamespace := Lean.Name.str .anonymous "Aniva"
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openDecls := [], -- No 'open' directives needed
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fileName := "<Pantograph>",
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fileMap := { source := "", positions := #[0], lines := #[1] },
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options := options
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}
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try
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let termElabM := loop.run context |>.run' {}
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let metaM := termElabM.run' (ctx := {
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declName? := some "_pantograph",
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errToSorry := false
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})
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let coreM := metaM.run'
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discard <| coreM.toIO coreContext { env := env }
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catch ex =>
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IO.println "Uncaught IO exception"
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IO.println ex.toString
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