98 lines
2.2 KiB
Nim
98 lines
2.2 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* = Value
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`AnyAtom`* {.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
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DLit* {.preservesRecord: "lit".} = object
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`value`*: AnyAtom
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DBind* {.preservesRecord: "bind".} = object
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`pattern`*: Pattern
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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* {.preservesRecord: "rec".} = object
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`label`*: Value
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`fields`*: seq[Pattern]
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DCompoundArr* {.preservesRecord: "arr".} = object
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`items`*: seq[Pattern]
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DCompoundDict* {.preservesRecord: "dict".} = object
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`entries`*: Table[Value, Pattern]
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`DCompound`* {.preservesOr.} = object
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case orKind*: DCompoundKind
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of DCompoundKind.`rec`:
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`rec`*: DCompoundRec
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of DCompoundKind.`arr`:
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`arr`*: DCompoundArr
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of DCompoundKind.`dict`:
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`dict`*: DCompoundDict
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PatternKind* {.pure.} = enum
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`DDiscard`, `DBind`, `DLit`, `DCompound`
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`Pattern`* {.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
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of PatternKind.`DLit`:
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`dlit`*: DLit
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of PatternKind.`DCompound`:
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`dcompound`*: DCompound
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proc `$`*(x: AnyAtom | DLit | DBind | DDiscard | DCompound | Pattern): string =
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`$`(toPreserves(x))
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proc encode*(x: AnyAtom | DLit | DBind | DDiscard | DCompound | Pattern): seq[
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byte] =
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encode(toPreserves(x))
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