cgen

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This module implements the C code generator.This include file contains the logic to produce constant string and seq literals. The code here is responsible that const x = ["a", "b"] works without hidden runtime creation code. The price is that seqs and strings are not purely a library implementation.Generates traversal procs for the C backend.Code specialization instead of the old, incredibly slow 'genericReset' implementation.Thread var support for architectures that lack native support for thread local storage.

Imports

ast, astalgo, trees, platform, magicsys, extccomp, options, nversion, nimsets, msgs, bitsets, idents, types, ccgutils, ropes, wordrecg, treetab, cgmeth, rodutils, renderer, cgendata, aliases, lowerings, ndi, lineinfos, pathutils, transf, injectdestructors, astmsgs, modulepaths, pushpoppragmas, mangleutils, expanddefaults, pipelineutils, spawn, semparallel, ic/ic, sighashes, modulegraphs, aliasanalysis, parampatterns

Procs

proc cgenWriteModules(backend: RootRef; config: ConfigRef) {....raises: [Exception,
    ValueError, KeyError, OSError, IOError, ERecoverableError], tags: [
    RootEffect, ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect,
    TimeEffect, WriteDirEffect], forbids: [].}

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proc fillObjectFields(m: BModule; typ: PType) {....raises: [Exception, ValueError,
    KeyError, OSError, IOError, ERecoverableError], tags: [RootEffect,
    ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect], forbids: [].}

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proc finalCodegenActions(graph: ModuleGraph; m: BModule; n: PNode) {....raises: [
    KeyError, Exception, ValueError, OSError, IOError, ERecoverableError], tags: [
    ReadDirEffect, RootEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect,
    TimeEffect], forbids: [].}

Also called from IC. Source Edit

proc genProcAux(m: BModule; prc: PSym) {....raises: [OSError, Exception,
    ERecoverableError, KeyError, ValueError, IOError], tags: [RootEffect,
    ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect, TimeEffect],
    forbids: [].}

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proc genTopLevelStmt(m: BModule; n: PNode) {....raises: [Exception, ValueError,
    KeyError, OSError, IOError, ERecoverableError], tags: [RootEffect,
    ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect, TimeEffect],
    forbids: [].}

Also called from ic/cbackend.nim. Source Edit

proc genTypeInfo(config: ConfigRef; m: BModule; t: PType; info: TLineInfo): Rope {....raises: [
    OSError, Exception, ValueError, KeyError, IOError, ERecoverableError], tags: [
    RootEffect, ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect],
    forbids: [].}

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proc multiFormat(frmt: var string; chars: static openArray[char];
                 args: openArray[seq[string]])

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proc newModule(g: BModuleList; module: PSym; conf: ConfigRef): BModule {.
    ...raises: [OSError, IOError],
    tags: [ReadEnvEffect, ReadIOEffect, WriteDirEffect, ReadDirEffect],
    forbids: [].}

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proc registerInitProcs(g: BModuleList; m: PSym; flags: set[ModuleBackendFlag]) {.
    ...raises: [Exception], tags: [RootEffect], forbids: [].}

Called from the IC backend. Source Edit

proc setupCgen(graph: ModuleGraph; module: PSym; idgen: IdGenerator): PPassContext {.
    ...raises: [OSError, IOError],
    tags: [ReadEnvEffect, ReadIOEffect, WriteDirEffect, ReadDirEffect],
    forbids: [].}

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proc whichInitProcs(m: BModule): set[ModuleBackendFlag] {....raises: [], tags: [],
    forbids: [].}

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Templates

template cgDeclFrmt(s: PSym): string

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