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.Thread var support for architectures that lack native support for thread local storage.included from cgen.nim
Imports
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../ast/ast_query, ../ast/ast_types, ../ast/ast_idgen, ../ast/astalgo, ../ast/trees, ../ast/idents, ../ast/types, ../ast/typesrenderer, ../ast/wordrecg, ../ast/renderer, ../ast/lineinfos, ../ast/ndi, ../modules/magicsys, ../modules/modulegraphs, ../mir/mirenv, ../mir/mirtrees, ../mir/mirtypes, ../front/options, ../front/msgs, ../utils/containers, ../utils/platform, ../utils/nversion, ../utils/bitsets, ../utils/ropes, ../utils/pathutils, ../utils/idioms, ../utils/int128, ../sem/rodutils, ../sem/lowerings, compat, extccomp, ccgutils, ccgflow, cgendata, cgir, mangling, ../ast/reports_sem, ../ast/report_enums, ../sem/passes, ../ast/ast, ../sem/sighashes
Consts
NonMagics = {mNewString, mNewStringOfCap, mNewSeq, mSetLengthSeq, mAppendSeqElem, mEnumToStr, mExit, mParseBiggestFloat, mAbsI, mDotDot, mEqCString, mIsolate}
- magics that are treated like normal procedures by the code generator. Source Edit
sfTopLevel = sfMainModule
- the procedure contains top-level code, which currently affects how emit, asm, and error handling works Source Edit
Procs
proc cgenWriteModules(backend: RootRef; config: ConfigRef) {....raises: [OSError, IOError, KeyError, Exception, ERecoverableError, ValueError], tags: [ ReadEnvEffect, ReadIOEffect, WriteDirEffect, ReadDirEffect, RootEffect, WriteIOEffect].}
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proc declareThreadVar(m: BModule; id: GlobalId; isExtern: bool) {. ...raises: [Exception, ERecoverableError, KeyError], tags: [RootEffect, ReadDirEffect].}
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proc defineGlobalVar(m: BModule; id: GlobalId) {. ...raises: [Exception, ERecoverableError, KeyError], tags: [RootEffect, ReadDirEffect].}
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proc emulatedThreadVars(conf: ConfigRef): bool {.inline, ...raises: [], tags: [].}
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proc fillGlobalLoc(m: BModule; id: GlobalId) {....raises: [], tags: [].}
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proc fillProcLoc(m: BModule; id: ProcedureId) {....raises: [], tags: [].}
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proc finalizeMainModule(m: BModule) {....raises: [], tags: [].}
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proc finalizeModule(m: BModule) {....raises: [], tags: [].}
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proc finishProc(p: BProc; id: ProcedureId): string {. ...raises: [KeyError, Exception, ERecoverableError], tags: [ReadDirEffect, RootEffect].}
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proc genConstDefinition(q: BModule; id: ConstId) {. ...raises: [Exception, ERecoverableError, KeyError], tags: [RootEffect, ReadDirEffect].}
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proc genDatInitCode(m: BModule): bool {....raises: [KeyError, Exception, ERecoverableError], tags: [ReadDirEffect, RootEffect].}
- this function is called after all modules are closed, it means raising dependency on the symbols is too late as it will not propagate into other modules, only simple rope manipulations are allowed Source Edit
proc genMainProc(m: BModule; body: Rope) {....raises: [], tags: [].}
- this function is called in cgenWriteModules after all modules are closed, it means raising dependency on the symbols is too late as it will not propagate into other modules, only simple rope manipulations are allowed Source Edit
proc genPartial(p: BProc; n: CgNode) {....raises: [Exception, ERecoverableError, KeyError], tags: [RootEffect].}
- Generates the C code for n and appends the result to p. This is intended for CG IR that wasn't already available when calling startProc. Source Edit
proc genProc(m: BModule; id: ProcedureId; procBody: sink Body): Rope {. ...raises: [Exception, ERecoverableError, KeyError], tags: [RootEffect, ReadDirEffect].}
- Generates the code for the procedure id, where procBody is the code of the body with all applicable lowerings and transformation applied. Source Edit
proc genProcPrototype(m: BModule; id: ProcedureId) {. ...raises: [ERecoverableError, Exception, KeyError], tags: [RootEffect, ReadDirEffect].}
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proc genStmts(p: BProc; n: CgNode) {....raises: [Exception, ERecoverableError, KeyError], tags: [RootEffect].}
- Generates and emits the C code for the statement list node n, which makes up the full body of the procedure. This is the external entry point into the C code generator. Source Edit
proc genTypeInfo(config: ConfigRef; m: BModule; t: PType; info: TLineInfo): Rope {. ...raises: [Exception, ERecoverableError, KeyError], tags: [RootEffect, ReadDirEffect].}
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proc genVarPrototype(m: BModule; id: GlobalId) {. ...raises: [ERecoverableError, Exception, KeyError], tags: [RootEffect, ReadDirEffect].}
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proc getDatInitName(m: BModule): Rope {....raises: [], tags: [].}
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proc getInitName(m: BModule): Rope {....raises: [], tags: [].}
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proc newModule(g: BModuleList; module: PSym; conf: ConfigRef): BModule {. ...raises: [OSError, IOError], tags: [ReadEnvEffect, ReadIOEffect, WriteDirEffect, ReadDirEffect].}
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proc rawNewModule(g: BModuleList; module: PSym; filename: AbsoluteFile): BModule {. ...raises: [OSError, IOError], tags: [ReadEnvEffect, ReadIOEffect, WriteDirEffect, ReadDirEffect].}
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proc startProc(m: BModule; id: ProcedureId; procBody: sink Body): BProc {. ...raises: [Exception, ERecoverableError, KeyError], tags: [RootEffect, ReadDirEffect].}
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proc symInDynamicLib(m: BModule; id: ProcedureId) {. ...raises: [ValueError, Exception, ERecoverableError, KeyError], tags: [RootEffect, ReadDirEffect].}
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