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67 lines
2.5 KiB
Nim
67 lines
2.5 KiB
Nim
#
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#
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# Nim's Runtime Library
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# (c) Copyright 2020 Nim contributors
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#
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# See the file "copying.txt", included in this
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# distribution, for details about the copyright.
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#
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## This module provides access to the inferred .raises effects
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## for Nim's macro system.
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## **Since**: Version 1.4.
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##
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## One can test for the existence of this standard module
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## via `defined(nimHasEffectTraitsModule)`.
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import std/macros
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when defined(nimPreviewSlimSystem):
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import std/assertions
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proc getRaisesListImpl(n: NimNode): NimNode = raiseAssert "see compiler/vmops.nim"
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proc getTagsListImpl(n: NimNode): NimNode = raiseAssert "see compiler/vmops.nim"
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proc getForbidsListImpl(n: NimNode): NimNode = raiseAssert "see compiler/vmops.nim"
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proc isGcSafeImpl(n: NimNode): bool = raiseAssert "see compiler/vmops.nim"
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proc hasNoSideEffectsImpl(n: NimNode): bool = raiseAssert "see compiler/vmops.nim"
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proc getRaisesList*(fn: NimNode): NimNode =
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## Extracts the `.raises` list of the func/proc/etc `fn`.
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## `fn` has to be a resolved symbol of kind `nnkSym`. This
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## implies that the macro that calls this proc should accept `typed`
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## arguments and not `untyped` arguments.
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expectKind fn, nnkSym
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result = getRaisesListImpl(fn)
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proc getTagsList*(fn: NimNode): NimNode =
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## Extracts the `.tags` list of the func/proc/etc `fn`.
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## `fn` has to be a resolved symbol of kind `nnkSym`. This
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## implies that the macro that calls this proc should accept `typed`
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## arguments and not `untyped` arguments.
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expectKind fn, nnkSym
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result = getTagsListImpl(fn)
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proc getForbidsList*(fn: NimNode): NimNode =
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## Extracts the `.forbids` list of the func/proc/etc `fn`.
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## `fn` has to be a resolved symbol of kind `nnkSym`. This
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## implies that the macro that calls this proc should accept `typed`
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## arguments and not `untyped` arguments.
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expectKind fn, nnkSym
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result = getForbidsListImpl(fn)
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proc isGcSafe*(fn: NimNode): bool =
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## Return true if the func/proc/etc `fn` is `gcsafe`.
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## `fn` has to be a resolved symbol of kind `nnkSym`. This
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## implies that the macro that calls this proc should accept `typed`
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## arguments and not `untyped` arguments.
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expectKind fn, nnkSym
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result = isGcSafeImpl(fn)
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proc hasNoSideEffects*(fn: NimNode): bool =
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## Return true if the func/proc/etc `fn` has `noSideEffect`.
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## `fn` has to be a resolved symbol of kind `nnkSym`. This
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## implies that the macro that calls this proc should accept `typed`
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## arguments and not `untyped` arguments.
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expectKind fn, nnkSym
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result = hasNoSideEffectsImpl(fn)
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