105 lines
2.6 KiB
Nim
105 lines
2.6 KiB
Nim
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import
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preserves, std/tables
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type
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AnyAtomKind* {.pure.} = enum
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`bool`, `float`, `double`, `int`, `string`, `bytes`, `symbol`, `embedded`
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AnyAtomBool* = bool
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AnyAtomFloat* = float32
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AnyAtomDouble* = float64
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AnyAtomInt* = BiggestInt
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AnyAtomString* = string
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AnyAtomBytes* = seq[byte]
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AnyAtomSymbol* = Symbol
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AnyAtomEmbedded*[Cap] = Cap
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`AnyAtom`*[Cap] {.preservesOr.} = object
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case orKind*: AnyAtomKind
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of AnyAtomKind.`bool`:
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`bool`*: AnyAtomBool
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of AnyAtomKind.`float`:
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`float`*: AnyAtomFloat
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of AnyAtomKind.`double`:
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`double`*: AnyAtomDouble
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of AnyAtomKind.`int`:
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`int`*: AnyAtomInt
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of AnyAtomKind.`string`:
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`string`*: AnyAtomString
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of AnyAtomKind.`bytes`:
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`bytes`*: AnyAtomBytes
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of AnyAtomKind.`symbol`:
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`symbol`*: AnyAtomSymbol
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of AnyAtomKind.`embedded`:
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`embedded`*: AnyAtomEmbedded[Cap]
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DLit*[Cap] {.preservesRecord: "lit".} = object
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`value`*: AnyAtom[Cap]
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DBind*[Cap] {.acyclic, preservesRecord: "bind".} = ref object
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`pattern`*: Pattern[Cap]
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DDiscard* {.preservesRecord: "_".} = object
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DCompoundKind* {.pure.} = enum
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`rec`, `arr`, `dict`
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DCompoundRec*[Cap] {.acyclic, preservesRecord: "rec".} = ref object
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`label`*: Preserve[Cap]
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`fields`*: seq[Pattern[Cap]]
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DCompoundArr*[Cap] {.acyclic, preservesRecord: "arr".} = ref object
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`items`*: seq[Pattern[Cap]]
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DCompoundDict*[Cap] {.acyclic, preservesRecord: "dict".} = ref object
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`entries`*: Table[Preserve[Cap], Pattern[Cap]]
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`DCompound`*[Cap] {.acyclic, preservesOr.} = ref object
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case orKind*: DCompoundKind
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of DCompoundKind.`rec`:
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`rec`*: DCompoundRec[Cap]
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of DCompoundKind.`arr`:
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`arr`*: DCompoundArr[Cap]
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of DCompoundKind.`dict`:
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`dict`*: DCompoundDict[Cap]
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PatternKind* {.pure.} = enum
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`DDiscard`, `DBind`, `DLit`, `DCompound`
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`Pattern`*[Cap] {.acyclic, preservesOr.} = ref object
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case orKind*: PatternKind
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of PatternKind.`DDiscard`:
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`ddiscard`*: DDiscard
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of PatternKind.`DBind`:
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`dbind`*: DBind[Cap]
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of PatternKind.`DLit`:
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`dlit`*: DLit[Cap]
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of PatternKind.`DCompound`:
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`dcompound`*: DCompound[Cap]
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proc `$`*[Cap](x: AnyAtom[Cap] | DLit[Cap] | DBind[Cap] | DCompound[Cap] |
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Pattern[Cap]): string =
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`$`(toPreserve(x, Cap))
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proc encode*[Cap](x: AnyAtom[Cap] | DLit[Cap] | DBind[Cap] | DCompound[Cap] |
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Pattern[Cap]): seq[byte] =
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encode(toPreserve(x, Cap))
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proc `$`*(x: DDiscard): string =
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`$`(toPreserve(x))
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proc encode*(x: DDiscard): seq[byte] =
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encode(toPreserve(x))
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