# compiler/liftdestructors

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This module implements lifting for type-bound operations (`=sink`, `=`, `=destroy`, `=deepCopy`).

# Imports

modulegraphs, lineinfos, idents, ast, renderer, semdata, sighashes, lowerings, options, types, msgs, magicsys, ccgutils, trees

# Procs

    proc boolLit(g: ModuleGraph; info: TLineInfo; value: bool): PNode {....raises: [
        KeyError, Exception, ValueError, OSError, IOError, ERecoverableError], tags: [
        ReadDirEffect, RootEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect].}

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    proc createTypeBoundOps(g: ModuleGraph; c: PContext; orig: PType;
                            info: TLineInfo; idgen: IdGenerator) {....raises: [
        Exception, KeyError, ValueError, OSError, IOError, ERecoverableError], tags: [
        RootEffect, ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect].}

  In the semantic pass this is called in strategic places to ensure we lift assignment, destructors and moves properly. The later 'injectdestructors' pass depends on it. Source Edit

    proc cyclicType(t: PType): bool {....raises: [Exception], tags: [RootEffect].}

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    proc genBuiltin(g: ModuleGraph; idgen: IdGenerator; magic: TMagic; name: string;
                    i: PNode): PNode {....raises: [], tags: [].}

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    proc produceDestructorForDiscriminator(g: ModuleGraph; typ: PType; field: PSym;
                                           info: TLineInfo; idgen: IdGenerator): PSym {....raises: [
        KeyError, Exception, ValueError, OSError, IOError, ERecoverableError], tags: [
        ReadDirEffect, RootEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect].}

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# Templates

    template asink(t: PType): PSym

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    template assignment(t: PType): PSym

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    template destructor(t: PType): PSym

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    template liftTypeBoundOps(c: PContext; typ: PType; info: TLineInfo)

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