create table anon40(
anon41 anon42 primary key default anon43(),
anon44 text unique not null,
anon45 text unique not null,
anon46 text not null,
anon47 text not null,
anon48 text default null,
anon49 text default null,
anon50 text default null,
anon51 text default null,
anon52 text default null,
anon53 text default null,
anon54 text default null,
anon55 text default null,
anon56 text default null,
anon57 text default null,
anon58 text default null,
anon59 text default null,
anon60 text default null,
anon61 text default null,
anon62 varchar(30) default null,
anon63 varchar(30) default null);
create table anon64(
anon41 serial primary key,
anon65 varchar(30) not null unique,
anon46 varchar(30) not null,
anon66 varchar(30) not null,
anon47 varchar(30) not null,
anon67 text not null,
anon55 varchar(30) not null unique,
anon68 varchar(30) default 'o',
anon69 boolean default true,
anon70 int not null references anon40(anon41));
create table anon71(
anon72 varchar(30) not null primary key,
anon73 varchar(30) not null unique,
anon70 int not null references anon40(anon41));
create table anon74(
anon72 varchar(30) not null primary key,
anon73 varchar(30) not null unique,
anon75 varchar(30) not null,
anon70 int not null references anon40(anon41),
foreign key(anon75) references anon71(anon72));
create table anon76(
anon41 serial primary key,
anon72 varchar(30) not null unique,
anon73 varchar(30) not null unique,
anon77 varchar(30) not null,
anon70 int not null references anon40(anon41),
foreign key(anon77) references anon74(anon72));
create table anon78(
anon41 serial primary key,
anon72 varchar(30) not null unique,
anon73 varchar(30) not null unique,
anon79 int not null,
anon80 varchar(30) default null,
anon81 int not null,
anon69 boolean not null default true,
anon70 int not null references anon40(anon41),
foreign key(anon79) references anon78(anon41),
foreign key(anon81) references anon76(anon41));
create table anon82(
anon41 serial primary key,
anon72 varchar(30) not null unique,
anon73 text not null unique,
anon79 int not null,
anon80 text default null,
anon83 varchar(30) not null default 'd',
anon84 decimal default 0.00,
anon69 boolean not null default true,
anon85 decimal default 0.00,
anon86 decimal default 0.00,
anon87 decimal default 0.00,
anon70 int not null references anon40(anon41),
foreign key(anon79) references anon78(anon41));
create table anon88(
anon41 serial primary key,
anon72 varchar(30) not null unique,
anon80 text default '',
anon69 boolean not null default true,
anon70 int not null references anon40(anon41));
create table anon89(
anon90 int not null primary key,
anon91 anon92 default 0.00,
anon93 varchar(30),
anon69 boolean not null default true,
anon70 int not null references anon40(anon41),
foreign key(anon90) references anon82(anon41));
create table anon94(
anon41 serial primary key,
anon73 text unique not null,
anon80 text default null,
anon69 boolean not null default true,
anon70 int not null references anon40(anon41));
create table anon95(
anon41 serial primary key,
anon73 text unique not null,
anon96 int not null references anon94(anon41),
anon80 text default null,
anon69 boolean not null default true,
anon70 int not null references anon40(anon41));
create table anon97(
anon41 serial primary key,
anon73 text unique not null,
anon98 int not null references anon95(anon41),
anon80 text default null,
anon69 boolean not null default true,
anon70 int not null references anon40(anon41));
create table anon99(
anon41 serial primary key,
anon73 varchar(30) unique not null,
anon100 varchar(30) default null,
anon101 anon102 default 0,
anon103 varchar(30) default 'g',
anon104 int not null,
anon105 decimal not null default 1,
anon69 boolean not null default true,
anon70 int not null references anon40(anon41));
create table anon106(
anon107 varchar(30) default 'g',
anon108 int references anon99(anon41) not null,
anon109 decimal default 1,
anon110 int references anon99(anon41) not null,
anon70 int not null references anon40(anon41));
create table anon111(
anon41 serial primary key,
anon112 text unique not null,
anon73 text unique not null,
anon113 anon102 references anon97(anon41) not null,
anon114 varchar(30) not null,
anon115 int not null references anon88(anon41),
anon116 int not null references anon82(anon41),
anon117 int not null references anon82(anon41),
anon118 int not null references anon82(anon41),
anon119 int not null references anon82(anon41),
anon120 int not null references anon82(anon41),
anon121 int not null references anon82(anon41),
anon122 int references anon99(anon41) not null,
anon123 decimal default 0.00,
anon124 decimal default 0.00,
anon69 boolean default true,
anon70 int not null references anon40(anon41));
create table anon125(
anon41 serial primary key,
anon126 int references anon111(anon41) not null,
anon80 text not null,
anon127 varchar(30) not null,
anon128 decimal default 0.00,
anon129 decimal default 0,
anon130 decimal default 0,
anon131 decimal default 0,
anon132 decimal default 0,
anon133 decimal default 0.00,
anon134 decimal default 0.00,
anon135 decimal default 0.00,
anon70 int not null references anon40(anon41), constraint anon136 check anon137(anon126, anon127, anon129));
create table anon138(
anon41 serial primary key,
anon126 int references anon111(anon41) not null,
anon80 text not null,
anon127 varchar(30) not null,
anon139 date not null,
anon129 decimal default 0,
anon130 decimal default 0,
anon131 decimal default 0,
anon132 decimal default 0,
anon70 int not null references anon40(anon41), constraint anon136 check anon137(anon127, anon129));
create table anon140(
anon41 serial primary key,
anon141 text unique not null,
anon46 text default null,
anon47 text default null,
anon57 varchar(30) default null,
anon142 text default null,
anon51 text default null,
anon143 varchar(30) default null,
anon53 text default null,
anon54 text default null,
anon55 text default null,
anon45 text default null,
anon69 boolean default true,
anon70 int not null references anon40(anon41));
create table anon144(
anon41 serial primary key,
anon72 varchar(30) unique not null,
anon73 varchar(30) unique not null,
anon80 varchar(30) default null,
anon69 boolean default true,
anon70 int not null references anon40(anon41));
create table anon145(
anon41 serial primary key,
anon72 varchar(30) unique not null,
anon73 varchar(30) unique not null,
anon146 int not null,
anon147 anon92 default 1,
anon148 anon92 default 9999999,
anon80 varchar(30) default null,
anon69 boolean default true,
anon149 int pre { line-height: 125%; }
td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
.highlight .hll { background-color: #ffffcc }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
.highlight .c1 { color: #888888 } /* Comment.Single */
.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .ges { font-weight: bold; font-style: italic } /* Generic.EmphStrong */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */#
#
# The Nim Compiler
# (c) Copyright 2015 Andreas Rumpf
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
#
## This module implements the C code generator.
import
ast, astalgo, hashes, trees, platform, magicsys, extccomp, options, intsets,
nversion, nimsets, msgs, bitsets, idents, types,
ccgutils, os, ropes, math, passes, wordrecg, treetab, cgmeth,
rodutils, renderer, cgendata, ccgmerge, aliases,
lowerings, tables, sets, ndi, lineinfos, pathutils, transf, enumtostr,
injectdestructors
when not defined(leanCompiler):
import spawn, semparallel
import strutils except `%` # collides with ropes.`%`
from modulegraphs import ModuleGraph, PPassContext
from lineinfos import
warnGcMem, errXMustBeCompileTime, hintDependency, errGenerated, errCannotOpenFile
import dynlib
when not declared(dynlib.libCandidates):
proc libCandidates(s: string, dest: var seq[string]) =
## given a library name pattern `s` write possible library names to `dest`.
var le = strutils.find(s, '(')
var ri = strutils.find(s, ')', le+1)
if le >= 0 and ri > le:
var prefix = substr(s, 0, le - 1)
var suffix = substr(s, ri + 1)
for middle in split(substr(s, le + 1, ri - 1), '|'):
libCandidates(prefix & middle & suffix, dest)
else:
dest.add(s)
when options.hasTinyCBackend:
import tccgen
proc hcrOn(m: BModule): bool = m.config.hcrOn
proc hcrOn(p: BProc): bool = p.module.config.hcrOn
proc addForwardedProc(m: BModule, prc: PSym) =
m.g.forwardedProcs.add(prc)
proc findPendingModule(m: BModule, s: PSym): BModule =
var ms = getModule(s)
result = m.g.modules[ms.position]
proc initLoc(result: var TLoc, k: TLocKind, lode: PNode, s: TStorageLoc) =
result.k = k
result.storage = s
result.lode = lode
result.r = nil
result.flags = {}
proc fillLoc(a: var TLoc, k: TLocKind, lode: PNode, r: Rope, s: TStorageLoc) =
# fills the loc if it is not already initialized
if a.k == locNone:
a.k = k
a.lode = lode
a.storage = s
if a.r == nil: a.r = r
proc t(a: TLoc): PType {.inline.} =
if a.lode.kind == nkSym:
result = a.lode.sym.typ
else:
result = a.lode.typ
proc lodeTyp(t: PType): PNode =
result = newNode(nkEmpty)
result.typ = t
proc isSimpleConst(typ: PType): bool =
let t = skipTypes(typ, abstractVar)
result = t.kind notin
{tyTuple, tyObject, tyArray, tySet, tySequence} and not
(t.kind == tyProc and t.callConv == ccClosure)
proc useHeader(m: BModule, sym: PSym) =
if lfHeader in sym.loc.flags:
assert(sym.annex != nil)
let str = getStr(sym.annex.path)
m.includeHeader(str)
proc cgsym(m: BModule, name: string): Rope
proc getCFile(m: BModule): AbsoluteFile
proc getModuleDllPath(m: BModule): Rope =
let (dir, name, ext) = splitFile(getCFile(m))
let filename = strutils.`%`(platform.OS[m.g.config.target.targetOS].dllFrmt, [name & ext])
return makeCString(dir.string & "/" & filename)
proc getModuleDllPath(m: BModule, s: PSym): Rope =
return getModuleDllPath(findPendingModule(m, s))
import macros
proc cgFormatValue(result: var string; value: Rope) =
for str in leaves(value):
result.add str
proc cgFormatValue(result: var string; value: string) =
result.add value
proc cgFormatValue(result: var string; value: BiggestInt) =
result.addInt value
proc cgFormatValue(result: var string; value: Int128) =
result.addInt128 value
# TODO: please document
macro ropecg(m: BModule, frmt: static[FormatStr], args: untyped): Rope =
args.expectKind nnkBracket
# echo "ropecg ", newLit(frmt).repr, ", ", args.repr
var i = 0
result = nnkStmtListExpr.newTree()
result.add quote do:
assert `m` != nil
let resVar = genSym(nskVar, "res")
# during `koch boot` the median of all generates strings from this
# macro is around 40 bytes in length.
result.add newVarStmt(resVar, newCall(bindSym"newStringOfCap", newLit(80)))
let formatValue = bindSym"cgFormatValue"
var num = 0
var strLit = ""
template flushStrLit() =
if strLit != "":
result.add newCall(ident "add", resVar, newLit(strLit))
strLit.setLen 0
while i < frmt.len:
if frmt[i] == '$':
inc(i) # skip '$'
case frmt[i]
of '$':
strLit.add '$'
inc(i)
of '#':
flushStrLit()
inc(i)
result.add newCall(formatValue, resVar, args[num])
inc(num)
of '0'..'9':
var j = 0
while true:
j = (j * 10) + ord(frmt[i]) - ord('0')
inc(i)
if i >= frmt.len or not (frmt[i] in {'0'..'9'}): break
num = j
if j > args.len:
error("ropes: invalid format string " & newLit(frmt).repr & " args.len: " & $args.len)
flushStrLit()
result.add newCall(formatValue, resVar, args[j-1])
of 'n':
flushStrLit()
result.add quote do:
if optLineDir notin `m`.config.options:
`resVar`.add("\L")
inc(i)
of 'N':
strLit.add "\L"
inc(i)
else:
error("ropes: invalid format string $" & frmt[i])
elif frmt[i] == '#' and frmt[i+1] in IdentStartChars:
inc(i)
var j = i
while frmt[j] in IdentChars: inc(j)
var ident = newLit(substr(frmt, i, j-1))
i = j
flushStrLit()
result.add newCall(formatValue, resVar, newCall(ident"cgsym", m, ident))
elif frmt[i] == '#' and frmt[i+1] == '$':
inc(i, 2)
var j = 0
while frmt[i] in Digits:
j = (j * 10) + ord(frmt[i]) - ord('0')
inc(i)
let ident = args[j-1]
flushStrLit()
result.add newCall(formatValue, resVar, newCall(ident"cgsym", m, ident))
var start = i
while i < frmt.len:
if frmt[i] != '$' and frmt[i] != '#': inc(i)
else: break
if i - 1 >= start:
strLit.add(substr(frmt, start, i - 1))
flushStrLit()
result.add newCall(ident"rope", resVar)
proc indentLine(p: BProc, r: Rope): Rope =
result = r
for i in 0..<p.blocks.len:
prepend(result, "\t".rope)
template appcg(m: BModule, c: var Rope, frmt: FormatStr,
args: untyped) =
c.add(ropecg(m, frmt, args))
template appcg(m: BModule, sec: TCFileSection, frmt: FormatStr,
args: untyped) =
m.s[sec].add(ropecg(m, frmt, args))
template appcg(p: BProc, sec: TCProcSection, frmt: FormatStr,
args: untyped) =
p.s(sec).add(ropecg(p.module, frmt, args))
template line(p: BProc, sec: TCProcSection, r: Rope) =
p.s(sec).add(indentLine(p, r))
template line(p: BProc, sec: TCProcSection, r: string) =
p.s(sec).add(indentLine(p, r.rope))
template lineF(p: BProc, sec: TCProcSection, frmt: FormatStr,
args: untyped) =
p.s(sec).add(indentLine(p, frmt % args))
template lineCg(p: BProc, sec: TCProcSection, frmt: FormatStr,
args: untyped) =
p.s(sec).add(indentLine(p, ropecg(p.module, frmt, args)))
template linefmt(p: BProc, sec: TCProcSection, frmt: FormatStr,
args: untyped) =
p.s(sec).add(indentLine(p, ropecg(p.module, frmt, args)))
proc safeLineNm(info: TLineInfo): int =
result = toLinenumber(info)
if result < 0: result = 0 # negative numbers are not allowed in #line
proc genCLineDir(r: var Rope, filename: string, line: int; conf: ConfigRef) =
assert line >= 0
if optLineDir in conf.options:
r.addf("$N#line $2 $1$N",
[rope(makeSingleLineCString(filename)), rope(line)])
proc genCLineDir(r: var Rope, info: TLineInfo; conf: ConfigRef) =
genCLineDir(r, toFullPath(conf, info), info.safeLineNm, conf)
proc freshLineInfo(p: BProc; info: TLineInfo): bool =
if p.lastLineInfo.line != info.line or
p.lastLineInfo.fileIndex != info.fileIndex:
p.lastLineInfo.line = info.line
p.lastLineInfo.fileIndex = info.fileIndex
result = true
proc genLineDir(p: BProc, t: PNode) =
let line = t.info.safeLineNm
if optEmbedOrigSrc in p.config.globalOptions:
p.s(cpsStmts).add(~"//" & sourceLine(p.config, t.info) & "\L")
genCLineDir(p.s(cpsStmts), toFullPath(p.config, t.info), line, p.config)
if ({optLineTrace, optStackTrace} * p.options == {optLineTrace, optStackTrace}) and
(p.prc == nil or sfPure notin p.prc.flags) and t.info.fileIndex != InvalidFileIdx:
if freshLineInfo(p, t.info):
linefmt(p, cpsStmts, "nimln_($1, $2);$n",
[line, quotedFilename(p.config, t.info)])
proc postStmtActions(p: BProc) {.inline.} =
p.s(cpsStmts).add(p.module.injectStmt)
proc accessThreadLocalVar(p: BProc, s: PSym)
proc emulatedThreadVars(conf: ConfigRef): bool {.inline.}
proc genProc(m: BModule, prc: PSym)
template compileToCpp(m: BModule): untyped =
m.config.cmd == cmdCompileToCpp or sfCompileToCpp in m.module.flags
proc getTempName(m: BModule): Rope =
result = m.tmpBase & rope(m.labels)
inc m.labels
proc rdLoc(a: TLoc): Rope =
# 'read' location (deref if indirect)
result = a.r
if lfIndirect in a.flags: result = "(*$1)" % [result]
proc lenField(p: BProc): Rope =
result = rope(if p.module.compileToCpp: "len" else: "Sup.len")
proc lenExpr(p: BProc; a: TLoc): Rope =
if optSeqDestructors in p.config.globalOptions:
result = rdLoc(a) & ".len"
else:
result = "($1 ? $1->$2 : 0)" % [rdLoc(a), lenField(p)]
proc dataField(p: BProc): Rope =
if optSeqDestructors in p.config.globalOptions:
result = rope".p->data"
else:
result = rope"->data"
include ccgliterals
include ccgtypes
# ------------------------------ Manager of temporaries ------------------
proc addrLoc(conf: ConfigRef; a: TLoc): Rope =
result = a.r
if lfIndirect notin a.flags and mapType(conf, a.t) != ctArray:
result = "(&" & result & ")"
proc byRefLoc(p: BProc; a: TLoc): Rope =
result = a.r
if lfIndirect notin a.flags and mapType(p.config, a.t) != ctArray and not
p.module.compileToCpp:
result = "(&" & result & ")"
proc rdCharLoc(a: TLoc): Rope =
# read a location that may need a char-cast:
result = rdLoc(a)
if skipTypes(a.t, abstractRange).kind == tyChar:
result = "((NU8)($1))" % [result]
type
TAssignmentFlag = enum
needToCopy
TAssignmentFlags = set[TAssignmentFlag]
proc genObjConstr(p: BProc, e: PNode, d: var TLoc)
proc rawConstExpr(p: BProc, n: PNode; d: var TLoc)
proc genAssignment(p: BProc, dest, src: TLoc, flags: TAssignmentFlags)
type
ObjConstrMode = enum
constructObj,
constructRefObj
proc genObjectInit(p: BProc, section: TCProcSection, t: PType, a: var TLoc,
mode: ObjConstrMode) =
if p.module.compileToCpp and t.isException and p.config.exc == excCpp:
# init vtable in Exception object for polymorphic exceptions
includeHeader(p.module, "<new>")
linefmt(p, section, "new ($1) $2;$n", [rdLoc(a), getTypeDesc(p.module, t)])
#if optNimV2 in p.config.globalOptions: return
case analyseObjectWithTypeField(t)
of frNone:
discard
of frHeader:
var r = rdLoc(a)
if mode == constructRefObj: r = "(*$1)" % [r]
var s = skipTypes(t, abstractInst)
if not p.module.compileToCpp:
while s.kind == tyObject and s[0] != nil:
r.add(".Sup")
s = skipTypes(s[0], skipPtrs)
linefmt(p, section, "$1.m_type = $2;$n", [r, genTypeInfo(p.module, t, a.lode.info)])
of frEmbedded:
if optTinyRtti in p.config.globalOptions:
var tmp: TLoc
if mode == constructRefObj:
let objType = t.skipTypes(abstractInst+{tyRef})
rawConstExpr(p, newNodeIT(nkType, a.lode.info, objType), tmp)
linefmt(p, cpsStmts,
"#nimCopyMem((void*)$1, (NIM_CONST void*)&$2, sizeof($3));$n",
[rdLoc(a), rdLoc(tmp), getTypeDesc(p.module, objType)])
else:
rawConstExpr(p, newNodeIT(nkType, a.lode.info, t), tmp)
genAssignment(p, a, tmp, {})
else:
# worst case for performance:
var r = if mode == constructObj: addrLoc(p.config, a) else: rdLoc(a)
linefmt(p, section, "#objectInit($1, $2);$n", [r, genTypeInfo(p.module, t, a.lode.info)])
if isException(t):
var r = rdLoc(a)
if mode == constructRefObj: r = "(*$1)" % [r]
var s = skipTypes(t, abstractInst)
if not p.module.compileToCpp:
while s.kind == tyObject and s[0] != nil and s.sym.magic != mException:
r.add(".Sup")
s = skipTypes(s[0], skipPtrs)
linefmt(p, section, "$1.name = $2;$n", [r, makeCString(t.skipTypes(abstractInst).sym.name.s)])
proc genRefAssign(p: BProc, dest, src: TLoc)
proc isComplexValueType(t: PType): bool {.inline.} =
let t = t.skipTypes(abstractInst + tyUserTypeClasses)
result = t.kind in {tyArray, tySet, tyTuple, tyObject} or
(t.kind == tyProc and t.callConv == ccClosure)
proc resetLoc(p: BProc, loc: var TLoc) =
let containsGcRef = optSeqDestructors notin p.config.globalOptions and containsGarbageCollectedRef(loc.t)
let typ = skipTypes(loc.t, abstractVarRange)
if isImportedCppType(typ): return
if optSeqDestructors in p.config.globalOptions and typ.kind in {tyString, tySequence}:
assert rdLoc(loc) != nil
linefmt(p, cpsStmts, "$1.len = 0; $1.p = NIM_NIL;$n", [rdLoc(loc)])
elif not isComplexValueType(typ):
if containsGcRef:
var nilLoc: TLoc
initLoc(nilLoc, locTemp, loc.lode, OnStack)
nilLoc.r = rope("NIM_NIL")
genRefAssign(p, loc, nilLoc)
else:
linefmt(p, cpsStmts, "$1 = 0;$n", [rdLoc(loc)])
else:
if optNilCheck in p.options:
linefmt(p, cpsStmts, "#chckNil((void*)$1);$n", [addrLoc(p.config, loc)])
if loc.storage != OnStack and containsGcRef:
linefmt(p, cpsStmts, "#genericReset((void*)$1, $2);$n",
[addrLoc(p.config, loc), genTypeInfo(p.module, loc.t, loc.lode.info)])
# XXX: generated reset procs should not touch the m_type
# field, so disabling this should be safe:
genObjectInit(p, cpsStmts, loc.t, loc, constructObj)
else:
# array passed as argument decayed into pointer, bug #7332
# so we use getTypeDesc here rather than rdLoc(loc)
linefmt(p, cpsStmts, "#nimZeroMem((void*)$1, sizeof($2));$n",
[addrLoc(p.config, loc), getTypeDesc(p.module, loc.t)])
# XXX: We can be extra clever here and call memset only
# on the bytes following the m_type field?
genObjectInit(p, cpsStmts, loc.t, loc, constructObj)
proc constructLoc(p: BProc, loc: var TLoc, isTemp = false) =
let typ = loc.t
if optSeqDestructors in p.config.globalOptions and skipTypes(typ, abstractInst).kind in {tyString, tySequence}:
linefmt(p, cpsStmts, "$1.len = 0; $1.p = NIM_NIL;$n", [rdLoc(loc)])
elif not isComplexValueType(typ):
linefmt(p, cpsStmts, "$1 = ($2)0;$n", [rdLoc(loc),
getTypeDesc(p.module, typ)])
else:
if not isTemp or containsGarbageCollectedRef(loc.t):
# don't use nimZeroMem for temporary values for performance if we can
# avoid it:
if not isImportedCppType(typ):
linefmt(p, cpsStmts, "#nimZeroMem((void*)$1, sizeof($2));$n",
[addrLoc(p.config, loc), getTypeDesc(p.module, typ)])
genObjectInit(p, cpsStmts, loc.t, loc, constructObj)
proc initLocalVar(p: BProc, v: PSym, immediateAsgn: bool) =
if sfNoInit notin v.flags:
# we know it is a local variable and thus on the stack!
# If ``not immediateAsgn`` it is not initialized in a binding like
# ``var v = X`` and thus we need to init it.
# If ``v`` contains a GC-ref we may pass it to ``unsureAsgnRef`` somehow
# which requires initialization. However this can really only happen if
# ``var v = X()`` gets transformed into ``X(&v)``.
# Nowadays the logic in ccgcalls deals with this case however.
if not immediateAsgn:
constructLoc(p, v.loc)
proc getTemp(p: BProc, t: PType, result: var TLoc; needsInit=false) =
inc(p.labels)
result.r = "T" & rope(p.labels) & "_"
linefmt(p, cpsLocals, "$1 $2;$n", [getTypeDesc(p.module, t), result.r])
result.k = locTemp
result.lode = lodeTyp t
result.storage = OnStack
result.flags = {}
constructLoc(p, result, not needsInit)
proc getTempCpp(p: BProc, t: PType, result: var TLoc; value: Rope) =
inc(p.labels)
result.r = "T" & rope(p.labels) & "_"
linefmt(p, cpsStmts, "$1 $2 = $3;$n", [getTypeDesc(p.module, t), result.r, value])
result.k = locTemp
result.lode = lodeTyp t
result.storage = OnStack
result.flags = {}
proc getIntTemp(p: BProc, result: var TLoc) =
inc(p.labels)
result.r = "T" & rope(p.labels) & "_"
linefmt(p, cpsLocals, "NI $1;$n", [result.r])
result.k = locTemp
result.storage = OnStack
result.lode = lodeTyp getSysType(p.module.g.graph, unknownLineInfo, tyInt)
result.flags = {}
proc localVarDecl(p: BProc; n: PNode): Rope =
let s = n.sym
if s.loc.k == locNone:
fillLoc(s.loc, locLocalVar, n, mangleLocalName(p, s), OnStack)
if s.kind == skLet: incl(s.loc.flags, lfNoDeepCopy)
if s.kind in {skLet, skVar, skField, skForVar} and s.alignment > 0:
result.addf("NIM_ALIGN($1) ", [rope(s.alignment)])
result.add getTypeDesc(p.module, s.typ)
if s.constraint.isNil:
if sfRegister in s.flags: result.add(" register")
#elif skipTypes(s.typ, abstractInst).kind in GcTypeKinds:
# decl.add(" GC_GUARD")
if sfVolatile in s.flags: result.add(" volatile")
result.add(" ")
result.add(s.loc.r)
else:
result = runtimeFormat(s.cgDeclFrmt, [result, s.loc.r])
proc assignLocalVar(p: BProc, n: PNode) =
#assert(s.loc.k == locNone) # not yet assigned
# this need not be fulfilled for inline procs; they are regenerated
# for each module that uses them!
let nl = if optLineDir in p.config.options: "" else: "\L"
let decl = localVarDecl(p, n) & ";" & nl
line(p, cpsLocals, decl)
include ccgthreadvars
proc varInDynamicLib(m: BModule, sym: PSym)
proc treatGlobalDifferentlyForHCR(m: BModule, s: PSym): bool =
return m.hcrOn and {sfThread, sfGlobal} * s.flags == {sfGlobal} and
({lfNoDecl, lfHeader} * s.loc.flags == {})
# and s.owner.kind == skModule # owner isn't always a module (global pragma on local var)
# and s.loc.k == locGlobalVar # loc isn't always initialized when this proc is used
proc assignGlobalVar(p: BProc, n: PNode; value: Rope) =
let s = n.sym
if s.loc.k == locNone:
fillLoc(s.loc, locGlobalVar, n, mangleName(p.module, s), OnHeap)
if treatGlobalDifferentlyForHCR(p.module, s): incl(s.loc.flags, lfIndirect)
if lfDynamicLib in s.loc.flags:
var q = findPendingModule(p.module, s)
if q != nil and not containsOrIncl(q.declaredThings, s.id):
varInDynamicLib(q, s)
else:
s.loc.r = mangleDynLibProc(s)
if value != nil:
internalError(p.config, n.info, ".dynlib variables cannot have a value")
return
useHeader(p.module, s)
if lfNoDecl in s.loc.flags: return
if not containsOrIncl(p.module.declaredThings, s.id):
if sfThread in s.flags:
declareThreadVar(p.module, s, sfImportc in s.flags)
if value != nil:
internalError(p.config, n.info, ".threadvar variables cannot have a value")
else:
var decl: Rope = nil
var td = getTypeDesc(p.module, s.loc.t)
if s.constraint.isNil:
if s.kind in {skLet, skVar, skField, skForVar} and s.alignment > 0:
decl.addf "NIM_ALIGN($1) ", [rope(s.alignment)]
if p.hcrOn: decl.add("static ")
elif sfImportc in s.flags: decl.add("extern ")
elif lfExportLib in s.loc.flags: decl.add("N_LIB_EXPORT_VAR ")
else: decl.add("N_LIB_PRIVATE ")
if s.kind == skLet and value != nil: decl.add("NIM_CONST ")
decl.add(td)
if p.hcrOn: decl.add("*")
if sfRegister in s.flags: decl.add(" register")
if sfVolatile in s.flags: decl.add(" volatile")
if value != nil:
decl.addf(" $1 = $2;$n", [s.loc.r, value])
else:
decl.addf(" $1;$n", [s.loc.r])
else:
if value != nil:
decl = runtimeFormat(s.cgDeclFrmt & " = $#;$n", [td, s.loc.r, value])
else:
decl = runtimeFormat(s.cgDeclFrmt & ";$n", [td, s.loc.r])
p.module.s[cfsVars].add(decl)
if p.withinLoop > 0 and value == nil:
# fixes tests/run/tzeroarray:
resetLoc(p, s.loc)
proc assignParam(p: BProc, s: PSym, retType: PType) =
assert(s.loc.r != nil)
scopeMangledParam(p, s)
proc fillProcLoc(m: BModule; n: PNode) =
let sym = n.sym
if sym.loc.k == locNone:
fillLoc(sym.loc, locProc, n, mangleName(m, sym), OnStack)
proc getLabel(p: BProc): TLabel =
inc(p.labels)
result = "LA" & rope(p.labels) & "_"
proc fixLabel(p: BProc, labl: TLabel) =
lineF(p, cpsStmts, "$1: ;$n", [labl])
proc genVarPrototype(m: BModule, n: PNode)
proc requestConstImpl(p: BProc, sym: PSym)
proc genStmts(p: BProc, t: PNode)
proc expr(p: BProc, n: PNode, d: var TLoc)
proc genProcPrototype(m: BModule, sym: PSym)
proc putLocIntoDest(p: BProc, d: var TLoc, s: TLoc)
proc intLiteral(i: BiggestInt): Rope
proc genLiteral(p: BProc, n: PNode): Rope
proc genOtherArg(p: BProc; ri: PNode; i: int; typ: PType): Rope
proc raiseExit(p: BProc)
proc initLocExpr(p: BProc, e: PNode, result: var TLoc) =
initLoc(result, locNone, e, OnUnknown)
expr(p, e, result)
proc initLocExprSingleUse(p: BProc, e: PNode, result: var TLoc) =
initLoc(result, locNone, e, OnUnknown)
if e.kind in nkCallKinds and (e[0].kind != nkSym or e[0].sym.magic == mNone):
# We cannot check for tfNoSideEffect here because of mutable parameters.
discard "bug #8202; enforce evaluation order for nested calls for C++ too"
# We may need to consider that 'f(g())' cannot be rewritten to 'tmp = g(); f(tmp)'
# if 'tmp' lacks a move/assignment operator.
if e[0].kind == nkSym and sfCompileToCpp in e[0].sym.flags:
result.flags.incl lfSingleUse
else:
result.flags.incl lfSingleUse
expr(p, e, result)
include ccgcalls, "ccgstmts.nim"
proc initFrame(p: BProc, procname, filename: Rope): Rope =
const frameDefines = """
$1 define nimfr_(proc, file) \
TFrame FR_; \
FR_.procname = proc; FR_.filename = file; FR_.line = 0; FR_.len = 0; #nimFrame(&FR_);
$1 define nimfrs_(proc, file, slots, length) \
struct {TFrame* prev;NCSTRING procname;NI line;NCSTRING filename; NI len; VarSlot s[slots];} FR_; \
FR_.procname = proc; FR_.filename = file; FR_.line = 0; FR_.len = length; #nimFrame((TFrame*)&FR_);
$1 define nimln_(n, file) \
FR_.line = n; FR_.filename = file;
"""
if p.module.s[cfsFrameDefines].len == 0:
appcg(p.module, p.module.s[cfsFrameDefines], frameDefines, ["#"])
discard cgsym(p.module, "nimFrame")
result = ropecg(p.module, "\tnimfr_($1, $2);$n", [procname, filename])
proc initFrameNoDebug(p: BProc; frame, procname, filename: Rope; line: int): Rope =
discard cgsym(p.module, "nimFrame")
p.blocks[0].sections[cpsLocals].addf("TFrame $1;$n", [frame])
result = ropecg(p.module, "\t$1.procname = $2; $1.filename = $3; " &
" $1.line = $4; $1.len = -1; nimFrame(&$1);$n",
[frame, procname, filename, line])
proc deinitFrameNoDebug(p: BProc; frame: Rope): Rope =
result = ropecg(p.module, "\t#popFrameOfAddr(&$1);$n", [frame])
proc deinitFrame(p: BProc): Rope =
result = ropecg(p.module, "\t#popFrame();$n", [])
include ccgexprs
# ----------------------------- dynamic library handling -----------------
# We don't finalize dynamic libs as the OS does this for us.
proc isGetProcAddr(lib: PLib): bool =
let n = lib.path
result = n.kind in nkCallKinds and n.typ != nil and
n.typ.kind in {tyPointer, tyProc}
proc loadDynamicLib(m: BModule, lib: PLib) =
assert(lib != nil)
if not lib.generated:
lib.generated = true
var tmp = getTempName(m)
assert(lib.name == nil)
lib.name = tmp # BUGFIX: cgsym has awful side-effects
m.s[cfsVars].addf("static void* $1;$n", [tmp])
if lib.path.kind in {nkStrLit..nkTripleStrLit}:
var s: TStringSeq = @[]
libCandidates(lib.path.strVal, s)
rawMessage(m.config, hintDependency, lib.path.strVal)
var loadlib: Rope = nil
for i in 0..high(s):
inc(m.labels)
if i > 0: loadlib.add("||")
let n = newStrNode(nkStrLit, s[i])
n.info = lib.path.info
appcg(m, loadlib, "($1 = #nimLoadLibrary($2))$n",
[tmp, genStringLiteral(m, n)])
appcg(m, m.s[cfsDynLibInit],
"if (!($1)) #nimLoadLibraryError($2);$n",
[loadlib, genStringLiteral(m, lib.path)])
else:
var p = newProc(nil, m)
p.options = p.options - {optStackTrace}
var dest: TLoc
initLoc(dest, locTemp, lib.path, OnStack)
dest.r = getTempName(m)
appcg(m, m.s[cfsDynLibInit],"$1 $2;$n",
[getTypeDesc(m, lib.path.typ), rdLoc(dest)])
expr(p, lib.path, dest)
m.s[cfsVars].add(p.s(cpsLocals))
m.s[cfsDynLibInit].add(p.s(cpsInit))
m.s[cfsDynLibInit].add(p.s(cpsStmts))
appcg(m, m.s[cfsDynLibInit],
"if (!($1 = #nimLoadLibrary($2))) #nimLoadLibraryError($2);$n",
[tmp, rdLoc(dest)])
if lib.name == nil: internalError(m.config, "loadDynamicLib")
proc mangleDynLibProc(sym: PSym): Rope =
# we have to build this as a single rope in order not to trip the
# optimization in genInfixCall, see test tests/cpp/t8241.nim
if sfCompilerProc in sym.flags:
# NOTE: sym.loc.r is the external name!
result = rope(sym.name.s)
else:
result = rope(strutils.`%`("Dl_$1_", $sym.id))
proc symInDynamicLib(m: BModule, sym: PSym) =
var lib = sym.annex
let isCall = isGetProcAddr(lib)
var extname = sym.loc.r
if not isCall: loadDynamicLib(m, lib)
var tmp = mangleDynLibProc(sym)
sym.loc.r = tmp # from now on we only need the internal name
sym.typ.sym = nil # generate a new name
inc(m.labels, 2)
if isCall:
let n = lib.path
var a: TLoc
initLocExpr(m.initProc, n[0], a)
var params = rdLoc(a) & "("
for i in 1..<n.len-1:
initLocExpr(m.initProc, n[i], a)
params.add(rdLoc(a))
params.add(", ")
let load = "\t$1 = ($2) ($3$4));$n" %
[tmp, getTypeDesc(m, sym.typ), params, makeCString($extname)]
var last = lastSon(n)
if last.kind == nkHiddenStdConv: last = last[1]
internalAssert(m.config, last.kind == nkStrLit)
let idx = last.strVal
if idx.len == 0:
m.initProc.s(cpsStmts).add(load)
elif idx.len == 1 and idx[0] in {'0'..'9'}:
m.extensionLoaders[idx[0]].add(load)
else:
internalError(m.config, sym.info, "wrong index: " & idx)
else:
appcg(m, m.s[cfsDynLibInit],
"\t$1 = ($2) #nimGetProcAddr($3, $4);$n",
[tmp, getTypeDesc(m, sym.typ), lib.name, makeCString($extname)])
m.s[cfsVars].addf("$2 $1;$n", [sym.loc.r, getTypeDesc(m, sym.loc.t)])
proc varInDynamicLib(m: BModule, sym: PSym) =
var lib = sym.annex
var extname = sym.loc.r
loadDynamicLib(m, lib)
incl(sym.loc.flags, lfIndirect)
var tmp = mangleDynLibProc(sym)
sym.loc.r = tmp # from now on we only need the internal name
inc(m.labels, 2)
appcg(m, m.s[cfsDynLibInit],
"$1 = ($2*) #nimGetProcAddr($3, $4);$n",
[tmp, getTypeDesc(m, sym.typ), lib.name, makeCString($extname)])
m.s[cfsVars].addf("$2* $1;$n",
[sym.loc.r, getTypeDesc(m, sym.loc.t)])
proc symInDynamicLibPartial(m: BModule, sym: PSym) =
sym.loc.r = mangleDynLibProc(sym)
sym.typ.sym = nil # generate a new name
proc cgsym(m: BModule, name: string): Rope =
let sym = magicsys.getCompilerProc(m.g.graph, name)
if sym != nil:
case sym.kind
of skProc, skFunc, skMethod, skConverter, skIterator: genProc(m, sym)
of skVar, skResult, skLet: genVarPrototype(m, newSymNode sym)
of skType: discard getTypeDesc(m, sym.typ)
else: internalError(m.config, "cgsym: " & name & ": " & $sym.kind)
else:
# we used to exclude the system module from this check, but for DLL
# generation support this sloppyness leads to hard to detect bugs, so
# we're picky here for the system module too:
rawMessage(m.config, errGenerated, "system module needs: " & name)
result = sym.loc.r
if m.hcrOn and sym != nil and sym.kind in {skProc..skIterator}:
result.addActualSuffixForHCR(m.module, sym)
proc generateHeaders(m: BModule) =
m.s[cfsHeaders].add("\L#include \"nimbase.h\"\L")
for it in m.headerFiles:
if it[0] == '#':
m.s[cfsHeaders].add(rope(it.replace('`', '"') & "\L"))
elif it[0] notin {'"', '<'}:
m.s[cfsHeaders].addf("#include \"$1\"$N", [rope(it)])
else:
m.s[cfsHeaders].addf("#include $1$N", [rope(it)])
m.s[cfsHeaders].add("""#undef LANGUAGE_C
#undef MIPSEB
#undef MIPSEL
#undef PPC
#undef R3000
#undef R4000
#undef i386
#undef linux
#undef mips
#undef near
#undef far
#undef powerpc
#undef unix
""")
proc openNamespaceNim(namespace: string): Rope =
result.add("namespace ")
result.add(namespace)
result.add(" {\L")
proc closeNamespaceNim(): Rope =
result.add("}\L")
proc closureSetup(p: BProc, prc: PSym) =
if tfCapturesEnv notin prc.typ.flags: return
# prc.ast[paramsPos].last contains the type we're after:
var ls = lastSon(prc.ast[paramsPos])
if ls.kind != nkSym:
internalError(p.config, prc.info, "closure generation failed")
var env = ls.sym
#echo "created environment: ", env.id, " for ", prc.name.s
assignLocalVar(p, ls)
# generate cast assignment:
if p.config.selectedGC == gcGo:
linefmt(p, cpsStmts, "#unsureAsgnRef((void**) $1, ($2) ClE_0);$n",
[addrLoc(p.config, env.loc), getTypeDesc(p.module, env.typ)])
else:
linefmt(p, cpsStmts, "$1 = ($2) ClE_0;$n",
[rdLoc(env.loc), getTypeDesc(p.module, env.typ)])
proc containsResult(n: PNode): bool =
if n.kind == nkSym and n.sym.kind == skResult:
result = true
else:
for i in 0..<n.safeLen:
if containsResult(n[i]): return true
const harmless = {nkConstSection, nkTypeSection, nkEmpty, nkCommentStmt, nkTemplateDef, nkMacroDef} +
declarativeDefs
proc easyResultAsgn(n: PNode): PNode =
case n.kind
of nkStmtList, nkStmtListExpr:
var i = 0
while i < n.len and n[i].kind in harmless: inc i
if i < n.len: result = easyResultAsgn(n[i])
of nkAsgn, nkFastAsgn:
if n[0].kind == nkSym and n[0].sym.kind == skResult and not containsResult(n[1]):
incl n.flags, nfPreventCg
return n[1]
of nkReturnStmt:
if n.len > 0:
result = easyResultAsgn(n[0])
if result != nil: incl n.flags, nfPreventCg
else: discard
type
InitResultEnum = enum Unknown, InitSkippable, InitRequired
proc allPathsAsgnResult(n: PNode): InitResultEnum =
# Exceptions coming from calls don't have not be considered here:
#
# proc bar(): string = raise newException(...)
#
# proc foo(): string =
# # optimized out: 'reset(result)'
# result = bar()
#
# try:
# a = foo()
# except:
# echo "a was not written to"
#
template allPathsInBranch(it) =
let a = allPathsAsgnResult(it)
case a
of InitRequired: return InitRequired
of InitSkippable: discard
of Unknown:
# sticky, but can be overwritten by InitRequired:
result = Unknown
result = Unknown
case n.kind
of nkStmtList, nkStmtListExpr:
for it in n:
result = allPathsAsgnResult(it)
if result != Unknown: return result
of nkAsgn, nkFastAsgn:
if n[0].kind == nkSym and n[0].sym.kind == skResult:
if not containsResult(n[1]): result = InitSkippable
else: result = InitRequired
elif containsResult(n):
result = InitRequired
of nkReturnStmt:
if n.len > 0:
if n[0].kind == nkEmpty and result != InitSkippable:
# This is a bare `return` statement, if `result` was not initialized
# anywhere else (or if we're not sure about this) let's require it to be
# initialized. This avoids cases like #9286 where this heuristic lead to
# wrong code being generated.
result = InitRequired
else: result = allPathsAsgnResult(n[0])
of nkIfStmt, nkIfExpr:
var exhaustive = false
result = InitSkippable
for it in n:
# Every condition must not use 'result':
if it.len == 2 and containsResult(it[0]):
return InitRequired
if it.len == 1: exhaustive = true
allPathsInBranch(it.lastSon)
# if the 'if' statement is not exhaustive and yet it touched 'result'
# in some way, say Unknown.
if not exhaustive: result = Unknown
of nkCaseStmt:
if containsResult(n[0]): return InitRequired
result = InitSkippable
var exhaustive = skipTypes(n[0].typ,
abstractVarRange-{tyTypeDesc}).kind notin {tyFloat..tyFloat128, tyString}
for i in 1..<n.len:
let it = n[i]
allPathsInBranch(it.lastSon)
if it.kind == nkElse: exhaustive = true
if not exhaustive: result = Unknown
of nkWhileStmt:
# some dubious code can assign the result in the 'while'
# condition and that would be fine. Everything else isn't:
result = allPathsAsgnResult(n[0])
if result == Unknown:
result = allPathsAsgnResult(n[1])
# we cannot assume that the 'while' loop is really executed at least once:
if result == InitSkippable: result = Unknown
of harmless:
result = Unknown
of nkGotoState, nkBreakState:
# give up for now.
result = InitRequired
of nkSym:
# some path reads from 'result' before it was written to!
if n.sym.kind == skResult: result = InitRequired
of nkTryStmt, nkHiddenTryStmt:
# We need to watch out for the following problem:
# try:
# result = stuffThatRaises()
# except:
# discard "result was not set"
#
# So ... even if the assignment to 'result' is the very first
# assignment this is not good enough! The only pattern we allow for
# is 'finally: result = x'
result = InitSkippable
allPathsInBranch(n[0])
for i in 1..<n.len:
if n[i].kind == nkFinally:
result = allPathsAsgnResult(n[i].lastSon)
else:
allPathsInBranch(n[i].lastSon)
else:
for i in 0..<n.safeLen:
allPathsInBranch(n[i])
proc getProcTypeCast(m: BModule, prc: PSym): Rope =
result = getTypeDesc(m, prc.loc.t)
if prc.typ.callConv == ccClosure:
var rettype, params: Rope
var check = initIntSet()
genProcParams(m, prc.typ, rettype, params, check)
result = "$1(*)$2" % [rettype, params]
proc genProcBody(p: BProc; procBody: PNode) =
genStmts(p, procBody) # modifies p.locals, p.init, etc.
if {nimErrorFlagAccessed, nimErrorFlagDeclared} * p.flags == {nimErrorFlagAccessed}:
p.flags.incl nimErrorFlagDeclared
p.blocks[0].sections[cpsLocals].add(ropecg(p.module, "NI* nimErr_;$n", []))
p.blocks[0].sections[cpsInit].add(ropecg(p.module, "nimErr_ = #nimErrorFlag();$n", []))
proc genProcAux(m: BModule, prc: PSym) =
var p = newProc(prc, m)
var header = genProcHeader(m, prc)
var returnStmt: Rope = nil
assert(prc.ast != nil)
var procBody = transformBody(m.g.graph, prc, cache = false)
if sfInjectDestructors in prc.flags:
procBody = injectDestructorCalls(m.g.graph, prc, procBody)
if sfPure notin prc.flags and prc.typ[0] != nil:
if resultPos >= prc.ast.len:
internalError(m.config, prc.info, "proc has no result symbol")
let resNode = prc.ast[resultPos]
let res = resNode.sym # get result symbol
if not isInvalidReturnType(m.config, prc.typ[0]):
if sfNoInit in prc.flags: incl(res.flags, sfNoInit)
if sfNoInit in prc.flags and p.module.compileToCpp and (let val = easyResultAsgn(procBody); val != nil):
var decl = localVarDecl(p, resNode)
var a: TLoc
initLocExprSingleUse(p, val, a)
linefmt(p, cpsStmts, "$1 = $2;$n", [decl, rdLoc(a)])
else:
# declare the result symbol:
assignLocalVar(p, resNode)
assert(res.loc.r != nil)
initLocalVar(p, res, immediateAsgn=false)
returnStmt = ropecg(p.module, "\treturn $1;$n", [rdLoc(res.loc)])
else:
fillResult(p.config, resNode)
assignParam(p, res, prc.typ[0])
# We simplify 'unsureAsgn(result, nil); unsureAsgn(result, x)'
# to 'unsureAsgn(result, x)'
# Sketch why this is correct: If 'result' points to a stack location
# the 'unsureAsgn' is a nop. If it points to a global variable the
# global is either 'nil' or points to valid memory and so the RC operation
# succeeds without touching not-initialized memory.
if sfNoInit in prc.flags: discard
elif allPathsAsgnResult(procBody) == InitSkippable: discard
else:
resetLoc(p, res.loc)
if skipTypes(res.typ, abstractInst).kind == tyArray:
#incl(res.loc.flags, lfIndirect)
res.loc.storage = OnUnknown
for i in 1..<prc.typ.n.len:
let param = prc.typ.n[i].sym
if param.typ.isCompileTimeOnly: continue
assignParam(p, param, prc.typ[0])
closureSetup(p, prc)
genProcBody(p, procBody)
var generatedProc: Rope
generatedProc.genCLineDir prc.info, m.config
if sfNoReturn in prc.flags:
if hasDeclspec in extccomp.CC[p.config.cCompiler].props:
header = "__declspec(noreturn) " & header
if sfPure in prc.flags:
if hasDeclspec in extccomp.CC[p.config.cCompiler].props:
header = "__declspec(naked) " & header
generatedProc.add ropecg(p.module, "$1 {$n$2$3$4}$N$N",
[header, p.s(cpsLocals), p.s(cpsInit), p.s(cpsStmts)])
else:
if m.hcrOn and isReloadable(m, prc):
# Add forward declaration for "_actual"-suffixed functions defined in the same module (or inline).
# This fixes the use of methods and also the case when 2 functions within the same module
# call each other using directly the "_actual" versions (an optimization) - see issue #11608
m.s[cfsProcHeaders].addf("$1;\n", [header])
generatedProc.add ropecg(p.module, "$1 {$n", [header])
if optStackTrace in prc.options:
generatedProc.add(p.s(cpsLocals))
var procname = makeCString(prc.name.s)
generatedProc.add(initFrame(p, procname, quotedFilename(p.config, prc.info)))
else:
generatedProc.add(p.s(cpsLocals))
if optProfiler in prc.options:
# invoke at proc entry for recursion:
appcg(p, cpsInit, "\t#nimProfile();$n", [])
# this pair of {} is required for C++ (C++ is weird with its
# control flow integrity checks):
if beforeRetNeeded in p.flags: generatedProc.add("{")
generatedProc.add(p.s(cpsInit))
generatedProc.add(p.s(cpsStmts))
if beforeRetNeeded in p.flags: generatedProc.add(~"\t}BeforeRet_: ;$n")
if optStackTrace in prc.options: generatedProc.add(deinitFrame(p))
generatedProc.add(returnStmt)
generatedProc.add(~"}$N")
m.s[cfsProcs].add(generatedProc)
if isReloadable(m, prc):
m.s[cfsDynLibInit].addf("\t$1 = ($3) hcrRegisterProc($4, \"$1\", (void*)$2);$n",
[prc.loc.r, prc.loc.r & "_actual", getProcTypeCast(m, prc), getModuleDllPath(m, prc)])
proc requiresExternC(m: BModule; sym: PSym): bool {.inline.} =
result = (sfCompileToCpp in m.module.flags and
sfCompileToCpp notin sym.getModule().flags and
m.config.cmd != cmdCompileToCpp) or (
sym.flags * {sfInfixCall, sfCompilerProc, sfMangleCpp} == {} and
sym.flags * {sfImportc, sfExportc} != {} and
sym.magic == mNone and
m.config.cmd == cmdCompileToCpp)
proc genProcPrototype(m: BModule, sym: PSym) =
useHeader(m, sym)
if lfNoDecl in sym.loc.flags: return
if lfDynamicLib in sym.loc.flags:
if getModule(sym).id != m.module.id and
not containsOrIncl(m.declaredThings, sym.id):
m.s[cfsVars].add(ropecg(m, "$1 $2 $3;$n",
[(if isReloadable(m, sym): "static" else: "extern"),
getTypeDesc(m, sym.loc.t), mangleDynLibProc(sym)]))
if isReloadable(m, sym):
m.s[cfsDynLibInit].addf("\t$1 = ($2) hcrGetProc($3, \"$1\");$n",
[mangleDynLibProc(sym), getTypeDesc(m, sym.loc.t), getModuleDllPath(m, sym)])
elif not containsOrIncl(m.declaredProtos, sym.id):
let asPtr = isReloadable(m, sym)
var header = genProcHeader(m, sym, asPtr)
if not asPtr:
if sfNoReturn in sym.flags and hasDeclspec in extccomp.CC[m.config.cCompiler].props:
header = "__declspec(noreturn) " & header
if sym.typ.callConv != ccInline and requiresExternC(m, sym):
header = "extern \"C\" " & header
if sfPure in sym.flags and hasAttribute in CC[m.config.cCompiler].props:
header.add(" __attribute__((naked))")
if sfNoReturn in sym.flags and hasAttribute in CC[m.config.cCompiler].props:
header.add(" __attribute__((noreturn))")
m.s[cfsProcHeaders].add(ropecg(m, "$1;$N", [header]))
# TODO: figure out how to rename this - it DOES generate a forward declaration
proc genProcNoForward(m: BModule, prc: PSym) =
if lfImportCompilerProc in prc.loc.flags:
fillProcLoc(m, prc.ast[namePos])
useHeader(m, prc)
# dependency to a compilerproc:
discard cgsym(m, prc.name.s)
return
if lfNoDecl in prc.loc.flags:
fillProcLoc(m, prc.ast[namePos])
genProcPrototype(m, prc)
elif prc.typ.callConv == ccInline:
# We add inline procs to the calling module to enable C based inlining.
# This also means that a check with ``q.declaredThings`` is wrong, we need
# a check for ``m.declaredThings``.
if not containsOrIncl(m.declaredThings, prc.id):
#if prc.loc.k == locNone:
# mangle the inline proc based on the module where it is defined -
# not on the first module that uses it
fillProcLoc(findPendingModule(m, prc), prc.ast[namePos])
#elif {sfExportc, sfImportc} * prc.flags == {}:
# # reset name to restore consistency in case of hashing collisions:
# echo "resetting ", prc.id, " by ", m.module.name.s
# prc.loc.r = nil
# prc.loc.r = mangleName(m, prc)
genProcPrototype(m, prc)
genProcAux(m, prc)
elif lfDynamicLib in prc.loc.flags:
var q = findPendingModule(m, prc)
fillProcLoc(q, prc.ast[namePos])
genProcPrototype(m, prc)
if q != nil and not containsOrIncl(q.declaredThings, prc.id):
symInDynamicLib(q, prc)
# register the procedure even though it is in a different dynamic library and will not be
# reloadable (and has no _actual suffix) - other modules will need to be able to get it through
# the hcr dynlib (also put it in the DynLibInit section - right after it gets loaded)
if isReloadable(q, prc):
q.s[cfsDynLibInit].addf("\t$1 = ($2) hcrRegisterProc($3, \"$1\", (void*)$1);$n",
[prc.loc.r, getTypeDesc(q, prc.loc.t), getModuleDllPath(m, q.module)])
else:
symInDynamicLibPartial(m, prc)
elif sfImportc notin prc.flags:
var q = findPendingModule(m, prc)
fillProcLoc(q, prc.ast[namePos])
# generate a getProc call to initialize the pointer for this
# externally-to-the-current-module defined proc, also important
# to do the declaredProtos check before the call to genProcPrototype
if isReloadable(m, prc) and prc.id notin m.declaredProtos and
q != nil and q.module.id != m.module.id:
m.s[cfsDynLibInit].addf("\t$1 = ($2) hcrGetProc($3, \"$1\");$n",
[prc.loc.r, getProcTypeCast(m, prc), getModuleDllPath(m, prc)])
genProcPrototype(m, prc)
if q != nil and not containsOrIncl(q.declaredThings, prc.id):
# make sure there is a "prototype" in the external module
# which will actually become a function pointer
if isReloadable(m, prc):
genProcPrototype(q, prc)
genProcAux(q, prc)
else:
fillProcLoc(m, prc.ast[namePos])
useHeader(m, prc)
if sfInfixCall notin prc.flags: genProcPrototype(m, prc)
proc requestConstImpl(p: BProc, sym: PSym) =
var m = p.module
useHeader(m, sym)
if sym.loc.k == locNone:
fillLoc(sym.loc, locData, sym.ast, mangleName(p.module, sym), OnStatic)
if lfNoDecl in sym.loc.flags: return
# declare implementation:
var q = findPendingModule(m, sym)
if q != nil and not containsOrIncl(q.declaredThings, sym.id):
assert q.initProc.module == q
q.s[cfsData].addf("N_LIB_PRIVATE NIM_CONST $1 $2 = $3;$n",
[getTypeDesc(q, sym.typ), sym.loc.r, genBracedInit(q.initProc, sym.ast, isConst = true)])
# declare header:
if q != m and not containsOrIncl(m.declaredThings, sym.id):
assert(sym.loc.r != nil)
let headerDecl = "extern NIM_CONST $1 $2;$n" %
[getTypeDesc(m, sym.loc.t), sym.loc.r]
m.s[cfsData].add(headerDecl)
if sfExportc in sym.flags and p.module.g.generatedHeader != nil:
p.module.g.generatedHeader.s[cfsData].add(headerDecl)
proc isActivated(prc: PSym): bool = prc.typ != nil
proc genProc(m: BModule, prc: PSym) =
if sfBorrow in prc.flags or not isActivated(prc): return
if sfForward in prc.flags:
addForwardedProc(m, prc)
fillProcLoc(m, prc.ast[namePos])
else:
genProcNoForward(m, prc)
if {sfExportc, sfCompilerProc} * prc.flags == {sfExportc} and
m.g.generatedHeader != nil and lfNoDecl notin prc.loc.flags:
genProcPrototype(m.g.generatedHeader, prc)
if prc.typ.callConv == ccInline:
if not containsOrIncl(m.g.generatedHeader.declaredThings, prc.id):
genProcAux(m.g.generatedHeader, prc)
proc genVarPrototype(m: BModule, n: PNode) =
#assert(sfGlobal in sym.flags)
let sym = n.sym
useHeader(m, sym)
fillLoc(sym.loc, locGlobalVar, n, mangleName(m, sym), OnHeap)
if treatGlobalDifferentlyForHCR(m, sym): incl(sym.loc.flags, lfIndirect)
if (lfNoDecl in sym.loc.flags) or contains(m.declaredThings, sym.id):
return
if sym.owner.id != m.module.id:
# else we already have the symbol generated!
assert(sym.loc.r != nil)
if sfThread in sym.flags:
declareThreadVar(m, sym, true)
else:
incl(m.declaredThings, sym.id)
if sym.kind in {skLet, skVar, skField, skForVar} and sym.alignment > 0:
m.s[cfsVars].addf "NIM_ALIGN($1) ", [rope(sym.alignment)]
m.s[cfsVars].add(if m.hcrOn: "static " else: "extern ")
m.s[cfsVars].add(getTypeDesc(m, sym.loc.t))
if m.hcrOn: m.s[cfsVars].add("*")
if lfDynamicLib in sym.loc.flags: m.s[cfsVars].add("*")
if sfRegister in sym.flags: m.s[cfsVars].add(" register")
if sfVolatile in sym.flags: m.s[cfsVars].add(" volatile")
m.s[cfsVars].addf(" $1;$n", [sym.loc.r])
if m.hcrOn: m.initProc.procSec(cpsLocals).addf(
"\t$1 = ($2*)hcrGetGlobal($3, \"$1\");$n", [sym.loc.r,
getTypeDesc(m, sym.loc.t), getModuleDllPath(m, sym)])
proc addIntTypes(result: var Rope; conf: ConfigRef) {.inline.} =
result.addf("#define NIM_INTBITS $1\L", [
platform.CPU[conf.target.targetCPU].intSize.rope])
if conf.cppCustomNamespace.len > 0:
result.add("#define USE_NIM_NAMESPACE ")
result.add(conf.cppCustomNamespace)
result.add("\L")
proc getCopyright(conf: ConfigRef; cfile: Cfile): Rope =
if optCompileOnly in conf.globalOptions:
result = ("/* Generated by Nim Compiler v$1 */$N" &
"/* (c) " & copyrightYear & " Andreas Rumpf */$N" &
"/* The generated code is subject to the original license. */$N") %
[rope(VersionAsString)]
else:
result = ("/* Generated by Nim Compiler v$1 */$N" &
"/* (c) " & copyrightYear & " Andreas Rumpf */$N" &
"/* The generated code is subject to the original license. */$N" &
"/* Compiled for: $2, $3, $4 */$N" &
"/* Command for C compiler:$n $5 */$N") %
[rope(VersionAsString),
rope(platform.OS[conf.target.targetOS].name),
rope(platform.CPU[conf.target.targetCPU].name),
rope(extccomp.CC[conf.cCompiler].name),
rope(getCompileCFileCmd(conf, cfile))]
proc getFileHeader(conf: ConfigRef; cfile: Cfile): Rope =
result = getCopyright(conf, cfile)
if conf.hcrOn: result.add("#define NIM_HOT_CODE_RELOADING\L")
addIntTypes(result, conf)
proc getSomeNameForModule(m: PSym): Rope =
assert m.kind == skModule
assert m.owner.kind == skPackage
if {sfSystemModule, sfMainModule} * m.flags == {}:
result = m.owner.name.s.mangle.rope
result.add "_"
result.add m.name.s.mangle
proc getSomeInitName(m: BModule, suffix: string): Rope =
if not m.hcrOn:
result = getSomeNameForModule(m.module)
result.add suffix
proc getInitName(m: BModule): Rope =
if sfMainModule in m.module.flags:
# generate constant name for main module, for "easy" debugging.
result = rope"NimMainModule"
else:
result = getSomeInitName(m, "Init000")
proc getDatInitName(m: BModule): Rope = getSomeInitName(m, "DatInit000")
proc getHcrInitName(m: BModule): Rope = getSomeInitName(m, "HcrInit000")
proc hcrGetProcLoadCode(m: BModule, sym, prefix, handle, getProcFunc: string): Rope
proc genMainProc(m: BModule) =
## 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
var preMainCode: Rope
if m.hcrOn:
proc loadLib(handle: string, name: string): Rope =
let prc = magicsys.getCompilerProc(m.g.graph, name)
assert prc != nil
let n = newStrNode(nkStrLit, prc.annex.path.strVal)
n.info = prc.annex.path.info
appcg(m, result, "\tif (!($1 = #nimLoadLibrary($2)))$N" &
"\t\t#nimLoadLibraryError($2);$N",
[handle, genStringLiteral(m, n)])
preMainCode.add(loadLib("hcr_handle", "hcrGetProc"))
preMainCode.add("\tvoid* rtl_handle;\L")
preMainCode.add(loadLib("rtl_handle", "nimGC_setStackBottom"))
preMainCode.add(hcrGetProcLoadCode(m, "nimGC_setStackBottom", "nimrtl_", "rtl_handle", "nimGetProcAddr"))
preMainCode.add("\tinner = PreMain;\L")
preMainCode.add("\tinitStackBottomWith_actual((void *)&inner);\L")
preMainCode.add("\t(*inner)();\L")
else:
preMainCode.add("\tPreMain();\L")
const
# not a big deal if we always compile these 3 global vars... makes the HCR code easier
PosixCmdLine =
"N_LIB_PRIVATE int cmdCount;$N" &
"N_LIB_PRIVATE char** cmdLine;$N" &
"N_LIB_PRIVATE char** gEnv;$N"
# The use of a volatile function pointer to call Pre/NimMainInner
# prevents inlining of the NimMainInner function and dependent
# functions, which might otherwise merge their stack frames.
PreMainBody = "$N" &
"N_LIB_PRIVATE void PreMainInner(void) {$N" &
"$2" &
"}$N$N" &
PosixCmdLine &
"N_LIB_PRIVATE void PreMain(void) {$N" &
"\tvoid (*volatile inner)(void);$N" &
"\tinner = PreMainInner;$N" &
"$1" &
"\t(*inner)();$N" &
"}$N$N"
MainProcs =
"\tNimMain();$N"
MainProcsWithResult =
MainProcs & ("\treturn $1nim_program_result;$N")
NimMainInner = "N_LIB_PRIVATE N_CDECL(void, NimMainInner)(void) {$N" &
"$1" &
"}$N$N"
NimMainProc =
"N_CDECL(void, NimMain)(void) {$N" &
"\tvoid (*volatile inner)(void);$N" &
"$4" &
"\tinner = NimMainInner;$N" &
"$2" &
"\t(*inner)();$N" &
"}$N$N"
NimMainBody = NimMainInner & NimMainProc
PosixCMain =
"int main(int argc, char** args, char** env) {$N" &
"\tcmdLine = args;$N" &
"\tcmdCount = argc;$N" &
"\tgEnv = env;$N" &
MainProcsWithResult &
"}$N$N"
StandaloneCMain =
"int main(void) {$N" &
MainProcs &
"\treturn 0;$N" &
"}$N$N"
WinNimMain = NimMainBody
WinCMain = "N_STDCALL(int, WinMain)(HINSTANCE hCurInstance, $N" &
" HINSTANCE hPrevInstance, $N" &
" LPSTR lpCmdLine, int nCmdShow) {$N" &
MainProcsWithResult & "}$N$N"
WinNimDllMain = NimMainInner & "N_LIB_EXPORT " & NimMainProc
WinCDllMain =
"BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fwdreason, $N" &
" LPVOID lpvReserved) {$N" &
"\tif(fwdreason == DLL_PROCESS_ATTACH) {$N" & MainProcs & "}$N" &
"\treturn 1;$N}$N$N"
PosixNimDllMain = WinNimDllMain
PosixCDllMain =
"N_LIB_PRIVATE void NIM_POSIX_INIT NimMainInit(void) {$N" &
MainProcs &
"}$N$N"
GenodeNimMain =
"extern Genode::Env *nim_runtime_env;$N" &
"extern void nim_component_construct(Genode::Env*);$N$N" &
NimMainBody
ComponentConstruct =
"void Libc::Component::construct(Libc::Env &env) {$N" &
"\t// Set Env used during runtime initialization$N" &
"\tnim_runtime_env = &env;$N" &
"\tLibc::with_libc([&] () {$N\t" &
"\t// Initialize runtime and globals$N" &
MainProcs &
"\t// Call application construct$N" &
"\t\tnim_component_construct(&env);$N" &
"\t});$N" &
"}$N$N"
if m.config.target.targetOS == osWindows and
m.config.globalOptions * {optGenGuiApp, optGenDynLib} != {}:
m.includeHeader("<windows.h>")
elif m.config.target.targetOS == osGenode:
m.includeHeader("<libc/component.h>")
let initStackBottomCall =
if m.config.target.targetOS == osStandalone or m.config.selectedGC == gcNone: "".rope
else: ropecg(m, "\t#initStackBottomWith((void *)&inner);$N", [])
inc(m.labels)
appcg(m, m.s[cfsProcs], PreMainBody, [m.g.mainDatInit, m.g.otherModsInit])
if m.config.target.targetOS == osWindows and
m.config.globalOptions * {optGenGuiApp, optGenDynLib} != {}:
if optGenGuiApp in m.config.globalOptions:
const nimMain = WinNimMain
appcg(m, m.s[cfsProcs], nimMain,
[m.g.mainModInit, initStackBottomCall, m.labels, preMainCode])
else:
const nimMain = WinNimDllMain
appcg(m, m.s[cfsProcs], nimMain,
[m.g.mainModInit, initStackBottomCall, m.labels, preMainCode])
elif m.config.target.targetOS == osGenode:
const nimMain = GenodeNimMain
appcg(m, m.s[cfsProcs], nimMain,
[m.g.mainModInit, initStackBottomCall, m.labels, preMainCode])
elif optGenDynLib in m.config.globalOptions:
const nimMain = PosixNimDllMain
appcg(m, m.s[cfsProcs], nimMain,
[m.g.mainModInit, initStackBottomCall, m.labels, preMainCode])
elif m.config.target.targetOS == osStandalone:
const nimMain = NimMainBody
appcg(m, m.s[cfsProcs], nimMain,
[m.g.mainModInit, initStackBottomCall, m.labels, preMainCode])
else:
const nimMain = NimMainBody
appcg(m, m.s[cfsProcs], nimMain,
[m.g.mainModInit, initStackBottomCall, m.labels, preMainCode])
if optNoMain notin m.config.globalOptions:
if m.config.cppCustomNamespace.len > 0:
m.s[cfsProcs].add closeNamespaceNim() & "using namespace " & m.config.cppCustomNamespace & ";\L"
if m.config.target.targetOS == osWindows and
m.config.globalOptions * {optGenGuiApp, optGenDynLib} != {}:
if optGenGuiApp in m.config.globalOptions:
const otherMain = WinCMain
appcg(m, m.s[cfsProcs], otherMain, [if m.hcrOn: "*" else: ""])
else:
const otherMain = WinCDllMain
appcg(m, m.s[cfsProcs], otherMain, [])
elif m.config.target.targetOS == osGenode:
const otherMain = ComponentConstruct
appcg(m, m.s[cfsProcs], otherMain, [])
elif optGenDynLib in m.config.globalOptions:
const otherMain = PosixCDllMain
appcg(m, m.s[cfsProcs], otherMain, [])
elif m.config.target.targetOS == osStandalone:
const otherMain = StandaloneCMain
appcg(m, m.s[cfsProcs], otherMain, [])
else:
const otherMain = PosixCMain
appcg(m, m.s[cfsProcs], otherMain, [if m.hcrOn: "*" else: ""])
if m.config.cppCustomNamespace.len > 0:
m.s[cfsProcs].add openNamespaceNim(m.config.cppCustomNamespace)
proc registerModuleToMain(g: BModuleList; m: BModule) =
let
init = m.getInitName
datInit = m.getDatInitName
if m.hcrOn:
var hcrModuleMeta = "$nN_LIB_PRIVATE const char* hcr_module_list[] = {$n" % []
let systemModulePath = getModuleDllPath(m, g.modules[g.graph.config.m.systemFileIdx.int].module)
let mainModulePath = getModuleDllPath(m, m.module)
if sfMainModule in m.module.flags:
hcrModuleMeta.addf("\t$1,$n", [systemModulePath])
g.graph.importDeps.withValue(FileIndex(m.module.position), deps):
for curr in deps[]:
hcrModuleMeta.addf("\t$1,$n", [getModuleDllPath(m, g.modules[curr.int].module)])
hcrModuleMeta.addf("\t\"\"};$n", [])
hcrModuleMeta.addf("$nN_LIB_EXPORT N_NIMCALL(void**, HcrGetImportedModules)() { return (void**)hcr_module_list; }$n", [])
hcrModuleMeta.addf("$nN_LIB_EXPORT N_NIMCALL(char*, HcrGetSigHash)() { return \"$1\"; }$n$n",
[($sigHash(m.module)).rope])
if sfMainModule in m.module.flags:
g.mainModProcs.add(hcrModuleMeta)
g.mainModProcs.addf("static void* hcr_handle;$N", [])
g.mainModProcs.addf("N_LIB_EXPORT N_NIMCALL(void, $1)(void);$N", [init])
g.mainModProcs.addf("N_LIB_EXPORT N_NIMCALL(void, $1)(void);$N", [datInit])
g.mainModProcs.addf("N_LIB_EXPORT N_NIMCALL(void, $1)(void*, N_NIMCALL_PTR(void*, getProcAddr)(void*, char*));$N", [m.getHcrInitName])
g.mainModProcs.addf("N_LIB_EXPORT N_NIMCALL(void, HcrCreateTypeInfos)(void);$N", [])
g.mainModInit.addf("\t$1();$N", [init])
g.otherModsInit.addf("\thcrInit((void**)hcr_module_list, $1, $2, $3, hcr_handle, nimGetProcAddr);$n",
[mainModulePath, systemModulePath, datInit])
g.mainDatInit.addf("\t$1(hcr_handle, nimGetProcAddr);$N", [m.getHcrInitName])
g.mainDatInit.addf("\thcrAddModule($1);\n", [mainModulePath])
g.mainDatInit.addf("\tHcrCreateTypeInfos();$N", [])
# nasty nasty hack to get the command line functionality working with HCR
# register the 2 variables on behalf of the os module which might not even
# be loaded (in which case it will get collected but that is not a problem)
let osModulePath = ($systemModulePath).replace("stdlib_system", "stdlib_os").rope
g.mainDatInit.addf("\thcrAddModule($1);\n", [osModulePath])
g.mainDatInit.add("\tint* cmd_count;\n")
g.mainDatInit.add("\tchar*** cmd_line;\n")
g.mainDatInit.addf("\thcrRegisterGlobal($1, \"cmdCount\", sizeof(cmd_count), NULL, (void**)&cmd_count);$N", [osModulePath])
g.mainDatInit.addf("\thcrRegisterGlobal($1, \"cmdLine\", sizeof(cmd_line), NULL, (void**)&cmd_line);$N", [osModulePath])
g.mainDatInit.add("\t*cmd_count = cmdCount;\n")
g.mainDatInit.add("\t*cmd_line = cmdLine;\n")
else:
m.s[cfsInitProc].add(hcrModuleMeta)
return
if m.s[cfsDatInitProc].len > 0:
g.mainModProcs.addf("N_LIB_PRIVATE N_NIMCALL(void, $1)(void);$N", [datInit])
g.mainDatInit.addf("\t$1();$N", [datInit])
# Initialization of TLS and GC should be done in between
# systemDatInit and systemInit calls if any
if sfSystemModule in m.module.flags:
if emulatedThreadVars(m.config) and m.config.target.targetOS != osStandalone:
g.mainDatInit.add(ropecg(m, "\t#initThreadVarsEmulation();$N", []))
if m.config.target.targetOS != osStandalone and m.config.selectedGC != gcNone:
g.mainDatInit.add(ropecg(m, "\t#initStackBottomWith((void *)&inner);$N", []))
if m.s[cfsInitProc].len > 0:
g.mainModProcs.addf("N_LIB_PRIVATE N_NIMCALL(void, $1)(void);$N", [init])
let initCall = "\t$1();$N" % [init]
if sfMainModule in m.module.flags:
g.mainModInit.add(initCall)
elif sfSystemModule in m.module.flags:
g.mainDatInit.add(initCall) # systemInit must called right after systemDatInit if any
else:
g.otherModsInit.add(initCall)
proc genDatInitCode(m: BModule) =
## 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
var moduleDatInitRequired = m.hcrOn
var prc = "$1 N_NIMCALL(void, $2)(void) {$N" %
[rope(if m.hcrOn: "N_LIB_EXPORT" else: "N_LIB_PRIVATE"), getDatInitName(m)]
# we don't want to break into such init code - could happen if a line
# directive from a function written by the user spills after itself
genCLineDir(prc, "generated_not_to_break_here", 999999, m.config)
for i in cfsTypeInit1..cfsDynLibInit:
if m.s[i].len != 0:
moduleDatInitRequired = true
prc.add(genSectionStart(i, m.config))
prc.add(m.s[i])
prc.add(genSectionEnd(i, m.config))
prc.addf("}$N$N", [])
if moduleDatInitRequired:
m.s[cfsDatInitProc].add(prc)
# Very similar to the contents of symInDynamicLib - basically only the
# things needed for the hot code reloading runtime procs to be loaded
proc hcrGetProcLoadCode(m: BModule, sym, prefix, handle, getProcFunc: string): Rope =
let prc = magicsys.getCompilerProc(m.g.graph, sym)
assert prc != nil
fillProcLoc(m, prc.ast[namePos])
var extname = prefix & sym
var tmp = mangleDynLibProc(prc)
prc.loc.r = tmp
prc.typ.sym = nil
if not containsOrIncl(m.declaredThings, prc.id):
m.s[cfsVars].addf("static $2 $1;$n", [prc.loc.r, getTypeDesc(m, prc.loc.t)])
result = "\t$1 = ($2) $3($4, $5);$n" %
[tmp, getTypeDesc(m, prc.typ), getProcFunc.rope, handle.rope, makeCString(prefix & sym)]
proc genInitCode(m: BModule) =
## 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
var moduleInitRequired = m.hcrOn
let initname = getInitName(m)
var prc = "$1 N_NIMCALL(void, $2)(void) {$N" %
[rope(if m.hcrOn: "N_LIB_EXPORT" else: "N_LIB_PRIVATE"), initname]
# we don't want to break into such init code - could happen if a line
# directive from a function written by the user spills after itself
genCLineDir(prc, "generated_not_to_break_here", 999999, m.config)
if m.typeNodes > 0:
if m.hcrOn:
appcg(m, m.s[cfsTypeInit1], "\t#TNimNode* $1;$N", [m.typeNodesName])
appcg(m, m.s[cfsTypeInit1], "\thcrRegisterGlobal($3, \"$1_$2\", sizeof(TNimNode) * $2, NULL, (void**)&$1);$N",
[m.typeNodesName, m.typeNodes, getModuleDllPath(m, m.module)])
else:
appcg(m, m.s[cfsTypeInit1], "static #TNimNode $1[$2];$n",
[m.typeNodesName, m.typeNodes])
if m.nimTypes > 0:
appcg(m, m.s[cfsTypeInit1], "static #TNimType $1[$2];$n",
[m.nimTypesName, m.nimTypes])
if m.hcrOn:
prc.addf("\tint* nim_hcr_dummy_ = 0;$n" &
"\tNIM_BOOL nim_hcr_do_init_ = " &
"hcrRegisterGlobal($1, \"module_initialized_\", 1, NULL, (void**)&nim_hcr_dummy_);$n",
[getModuleDllPath(m, m.module)])
template writeSection(thing: untyped, section: TCProcSection, addHcrGuards = false) =
if m.thing.s(section).len > 0:
moduleInitRequired = true
if addHcrGuards: prc.add("\tif (nim_hcr_do_init_) {\n\n")
prc.add(genSectionStart(section, m.config))
prc.add(m.thing.s(section))
prc.add(genSectionEnd(section, m.config))
if addHcrGuards: prc.add("\n\t} // nim_hcr_do_init_\n")
if m.preInitProc.s(cpsInit).len > 0 or m.preInitProc.s(cpsStmts).len > 0:
# Give this small function its own scope
prc.addf("{$N", [])
# Keep a bogus frame in case the code needs one
prc.add(~"\tTFrame FR_; FR_.len = 0;$N")
writeSection(preInitProc, cpsLocals)
writeSection(preInitProc, cpsInit, m.hcrOn)
writeSection(preInitProc, cpsStmts)
prc.addf("}$N", [])
# add new scope for following code, because old vcc compiler need variable
# be defined at the top of the block
prc.addf("{$N", [])
writeSection(initProc, cpsLocals)
if m.initProc.s(cpsInit).len > 0 or m.initProc.s(cpsStmts).len > 0:
moduleInitRequired = true
if optStackTrace in m.initProc.options and frameDeclared notin m.flags:
# BUT: the generated init code might depend on a current frame, so
# declare it nevertheless:
incl m.flags, frameDeclared
if preventStackTrace notin m.flags:
var procname = makeCString(m.module.name.s)
prc.add(initFrame(m.initProc, procname, quotedFilename(m.config, m.module.info)))
else:
prc.add(~"\tTFrame FR_; FR_.len = 0;$N")
writeSection(initProc, cpsInit, m.hcrOn)
writeSection(initProc, cpsStmts)
if beforeRetNeeded in m.initProc.flags:
prc.add(~"\tBeforeRet_: ;$n")
if sfMainModule in m.module.flags and m.config.exc == excGoto:
if getCompilerProc(m.g.graph, "nimTestErrorFlag") != nil:
m.appcg(prc, "\t#nimTestErrorFlag();$n", [])
if optStackTrace in m.initProc.options and preventStackTrace notin m.flags:
prc.add(deinitFrame(m.initProc))
prc.addf("}$N", [])
prc.addf("}$N$N", [])
# we cannot simply add the init proc to ``m.s[cfsProcs]`` anymore because
# that would lead to a *nesting* of merge sections which the merger does
# not support. So we add it to another special section: ``cfsInitProc``
if m.hcrOn:
var procsToLoad = @["hcrRegisterProc", "hcrGetProc", "hcrRegisterGlobal", "hcrGetGlobal"]
m.s[cfsInitProc].addf("N_LIB_EXPORT N_NIMCALL(void, $1)(void* handle, N_NIMCALL_PTR(void*, getProcAddr)(void*, char*)) {$N", [getHcrInitName(m)])
if sfMainModule in m.module.flags:
# additional procs to load
procsToLoad.add("hcrInit")
procsToLoad.add("hcrAddModule")
# load procs
for curr in procsToLoad:
m.s[cfsInitProc].add(hcrGetProcLoadCode(m, curr, "", "handle", "getProcAddr"))
m.s[cfsInitProc].addf("}$N$N", [])
for i, el in pairs(m.extensionLoaders):
if el != nil:
let ex = "NIM_EXTERNC N_NIMCALL(void, nimLoadProcs$1)(void) {$2}$N$N" %
[(i.ord - '0'.ord).rope, el]
moduleInitRequired = true
prc.add(ex)
if moduleInitRequired or sfMainModule in m.module.flags:
m.s[cfsInitProc].add(prc)
genDatInitCode(m)
if m.hcrOn:
m.s[cfsInitProc].addf("N_LIB_EXPORT N_NIMCALL(void, HcrCreateTypeInfos)(void) {$N", [])
m.s[cfsInitProc].add(m.hcrCreateTypeInfosProc)
m.s[cfsInitProc].addf("}$N$N", [])
registerModuleToMain(m.g, m)
proc genModule(m: BModule, cfile: Cfile): Rope =
var moduleIsEmpty = true
result = getFileHeader(m.config, cfile)
result.add(genMergeInfo(m))
generateThreadLocalStorage(m)
generateHeaders(m)
result.add(genSectionStart(cfsHeaders, m.config))
result.add(m.s[cfsHeaders])
if m.config.cppCustomNamespace.len > 0:
result.add openNamespaceNim(m.config.cppCustomNamespace)
result.add(genSectionEnd(cfsHeaders, m.config))
result.add(genSectionStart(cfsFrameDefines, m.config))
if m.s[cfsFrameDefines].len > 0:
result.add(m.s[cfsFrameDefines])
else:
result.add("#define nimfr_(x, y)\n#define nimln_(x, y)\n")
result.add(genSectionEnd(cfsFrameDefines, m.config))
for i in cfsForwardTypes..cfsProcs:
if m.s[i].len > 0:
moduleIsEmpty = false
result.add(genSectionStart(i, m.config))
result.add(m.s[i])
result.add(genSectionEnd(i, m.config))
if m.s[cfsInitProc].len > 0:
moduleIsEmpty = false
result.add(m.s[cfsInitProc])
if m.s[cfsDatInitProc].len > 0 or m.hcrOn:
moduleIsEmpty = false
result.add(m.s[cfsDatInitProc])
if m.config.cppCustomNamespace.len > 0:
result.add closeNamespaceNim()
if moduleIsEmpty:
result = nil
proc newPreInitProc(m: BModule): BProc =
result = newProc(nil, m)
# little hack so that unique temporaries are generated:
result.labels = 100_000
proc initProcOptions(m: BModule): TOptions =
let opts = m.config.options
if sfSystemModule in m.module.flags: opts-{optStackTrace} else: opts
proc rawNewModule(g: BModuleList; module: PSym, filename: AbsoluteFile): BModule =
new(result)
result.g = g
result.tmpBase = rope("TM" & $hashOwner(module) & "_")
result.headerFiles = @[]
result.declaredThings = initIntSet()
result.declaredProtos = initIntSet()
result.cfilename = filename
result.filename = filename
result.typeCache = initTable[SigHash, Rope]()
result.forwTypeCache = initTable[SigHash, Rope]()
result.module = module
result.typeInfoMarker = initTable[SigHash, Rope]()
result.sigConflicts = initCountTable[SigHash]()
result.initProc = newProc(nil, result)
result.initProc.options = initProcOptions(result)
result.preInitProc = newPreInitProc(result)
initNodeTable(result.dataCache)
result.typeStack = @[]
result.typeNodesName = getTempName(result)
result.nimTypesName = getTempName(result)
# no line tracing for the init sections of the system module so that we
# don't generate a TFrame which can confuse the stack bottom initialization:
if sfSystemModule in module.flags:
incl result.flags, preventStackTrace
excl(result.preInitProc.options, optStackTrace)
let ndiName = if optCDebug in g.config.globalOptions: changeFileExt(completeCfilePath(g.config, filename), "ndi")
else: AbsoluteFile""
open(result.ndi, ndiName, g.config)
proc rawNewModule(g: BModuleList; module: PSym; conf: ConfigRef): BModule =
result = rawNewModule(g, module, AbsoluteFile toFullPath(conf, module.position.FileIndex))
proc newModule(g: BModuleList; module: PSym; conf: ConfigRef): BModule =
# we should create only one cgen module for each module sym
result = rawNewModule(g, module, conf)
if module.position >= g.modules.len:
setLen(g.modules, module.position + 1)
#growCache g.modules, module.position
g.modules[module.position] = result
template injectG() {.dirty.} =
if graph.backend == nil:
graph.backend = newModuleList(graph)
let g = BModuleList(graph.backend)
proc myOpen(graph: ModuleGraph; module: PSym): PPassContext =
injectG()
result = newModule(g, module, graph.config)
if optGenIndex in graph.config.globalOptions and g.generatedHeader == nil:
let f = if graph.config.headerFile.len > 0: AbsoluteFile graph.config.headerFile
else: graph.config.projectFull
g.generatedHeader = rawNewModule(g, module,
changeFileExt(completeCfilePath(graph.config, f), hExt))
incl g.generatedHeader.flags, isHeaderFile
proc writeHeader(m: BModule) =
var result = ("/* Generated by Nim Compiler v$1 */$N" &
"/* (c) 2017 Andreas Rumpf */$N" &
"/* The generated code is subject to the original license. */$N") %
[rope(VersionAsString)]
var guard = "__$1__" % [m.filename.splitFile.name.rope]
result.addf("#ifndef $1$n#define $1$n", [guard])
addIntTypes(result, m.config)
generateHeaders(m)
generateThreadLocalStorage(m)
for i in cfsHeaders..cfsProcs:
result.add(genSectionStart(i, m.config))
result.add(m.s[i])
result.add(genSectionEnd(i, m.config))
if m.config.cppCustomNamespace.len > 0 and i == cfsHeaders: result.add openNamespaceNim(m.config.cppCustomNamespace)
result.add(m.s[cfsInitProc])
if optGenDynLib in m.config.globalOptions:
result.add("N_LIB_IMPORT ")
result.addf("N_CDECL(void, NimMain)(void);$n", [])
if m.config.cppCustomNamespace.len > 0: result.add closeNamespaceNim()
result.addf("#endif /* $1 */$n", [guard])
if not writeRope(result, m.filename):
rawMessage(m.config, errCannotOpenFile, m.filename.string)
proc getCFile(m: BModule): AbsoluteFile =
let ext =
if m.compileToCpp: ".nim.cpp"
elif m.config.cmd == cmdCompileToOC or sfCompileToObjc in m.module.flags: ".nim.m"
else: ".nim.c"
result = changeFileExt(completeCfilePath(m.config, withPackageName(m.config, m.cfilename)), ext)
when false:
proc myOpenCached(graph: ModuleGraph; module: PSym, rd: PRodReader): PPassContext =
injectG()
var m = newModule(g, module, graph.config)
readMergeInfo(getCFile(m), m)
result = m
proc addHcrInitGuards(p: BProc, n: PNode, inInitGuard: var bool) =
if n.kind == nkStmtList:
for child in n:
addHcrInitGuards(p, child, inInitGuard)
else:
let stmtShouldExecute = n.kind in {nkVarSection, nkLetSection} or
nfExecuteOnReload in n.flags
if inInitGuard:
if stmtShouldExecute:
endBlock(p)
inInitGuard = false
else:
if not stmtShouldExecute:
line(p, cpsStmts, "if (nim_hcr_do_init_)\n")
startBlock(p)
inInitGuard = true
genStmts(p, n)
proc myProcess(b: PPassContext, n: PNode): PNode =
result = n
if b == nil: return
var m = BModule(b)
if passes.skipCodegen(m.config, n) or
not moduleHasChanged(m.g.graph, m.module):
return
m.initProc.options = initProcOptions(m)
#softRnl = if optLineDir in m.config.options: noRnl else: rnl
# XXX replicate this logic!
var transformedN = transformStmt(m.g.graph, m.module, n)
if sfInjectDestructors in m.module.flags:
transformedN = injectDestructorCalls(m.g.graph, m.module, transformedN)
if m.hcrOn:
addHcrInitGuards(m.initProc, transformedN, m.inHcrInitGuard)
else:
genProcBody(m.initProc, transformedN)
proc shouldRecompile(m: BModule; code: Rope, cfile: Cfile): bool =
if optForceFullMake notin m.config.globalOptions:
if not moduleHasChanged(m.g.graph, m.module):
result = false
elif not equalsFile(code, cfile.cname):
when false:
#m.config.symbolFiles == readOnlySf: #isDefined(m.config, "nimdiff"):
if fileExists(cfile.cname):
copyFile(cfile.cname.string, cfile.cname.string & ".backup")
echo "diff ", cfile.cname.string, ".backup ", cfile.cname.string
else:
echo "new file ", cfile.cname.string
if not writeRope(code, cfile.cname):
rawMessage(m.config, errCannotOpenFile, cfile.cname.string)
result = true
elif fileExists(cfile.obj) and os.fileNewer(cfile.obj.string, cfile.cname.string):
result = false
else:
result = true
else:
if not writeRope(code, cfile.cname):
rawMessage(m.config, errCannotOpenFile, cfile.cname.string)
result = true
# We need 2 different logics here: pending modules (including
# 'nim__dat') may require file merging for the combination of dead code
# elimination and incremental compilation! Non pending modules need no
# such logic and in fact the logic hurts for the main module at least;
# it would generate multiple 'main' procs, for instance.
proc writeModule(m: BModule, pending: bool) =
let cfile = getCFile(m)
if true or optForceFullMake in m.config.globalOptions:
if moduleHasChanged(m.g.graph, m.module):
genInitCode(m)
finishTypeDescriptions(m)
if sfMainModule in m.module.flags:
# generate main file:
genMainProc(m)
m.s[cfsProcHeaders].add(m.g.mainModProcs)
generateThreadVarsSize(m)
var cf = Cfile(nimname: m.module.name.s, cname: cfile,
obj: completeCfilePath(m.config, toObjFile(m.config, cfile)), flags: {})
var code = genModule(m, cf)
if code != nil or m.config.symbolFiles != disabledSf:
when hasTinyCBackend:
if conf.cmd == cmdRun:
tccgen.compileCCode($code)
return
if not shouldRecompile(m, code, cf): cf.flags = {CfileFlag.Cached}
addFileToCompile(m.config, cf)
elif pending and mergeRequired(m) and sfMainModule notin m.module.flags:
let cf = Cfile(nimname: m.module.name.s, cname: cfile,
obj: completeCfilePath(m.config, toObjFile(m.config, cfile)), flags: {})
mergeFiles(cfile, m)
genInitCode(m)
finishTypeDescriptions(m)
var code = genModule(m, cf)
if code != nil:
if not writeRope(code, cfile):
rawMessage(m.config, errCannotOpenFile, cfile.string)
addFileToCompile(m.config, cf)
else:
# Consider: first compilation compiles ``system.nim`` and produces
# ``system.c`` but then compilation fails due to an error. This means
# that ``system.o`` is missing, so we need to call the C compiler for it:
var cf = Cfile(nimname: m.module.name.s, cname: cfile,
obj: completeCfilePath(m.config, toObjFile(m.config, cfile)), flags: {})
if not fileExists(cf.obj): cf.flags = {CfileFlag.Cached}
addFileToCompile(m.config, cf)
close(m.ndi)
proc updateCachedModule(m: BModule) =
let cfile = getCFile(m)
var cf = Cfile(nimname: m.module.name.s, cname: cfile,
obj: completeCfilePath(m.config, toObjFile(m.config, cfile)), flags: {})
if mergeRequired(m) and sfMainModule notin m.module.flags:
mergeFiles(cfile, m)
genInitCode(m)
finishTypeDescriptions(m)
var code = genModule(m, cf)
if code != nil:
if not writeRope(code, cfile):
rawMessage(m.config, errCannotOpenFile, cfile.string)
addFileToCompile(m.config, cf)
else:
if sfMainModule notin m.module.flags:
genMainProc(m)
cf.flags = {CfileFlag.Cached}
addFileToCompile(m.config, cf)
proc myClose(graph: ModuleGraph; b: PPassContext, n: PNode): PNode =
result = n
if b == nil: return
var m = BModule(b)
if sfMainModule in m.module.flags:
# phase ordering problem here: We need to announce this
# dependency to 'nimTestErrorFlag' before system.c has been written to disk.
if m.config.exc == excGoto and getCompilerProc(graph, "nimTestErrorFlag") != nil:
discard cgsym(m, "nimTestErrorFlag")
for i in countdown(high(graph.globalDestructors), 0):
n.add graph.globalDestructors[i]
if passes.skipCodegen(m.config, n): return
if moduleHasChanged(graph, m.module):
# if the module is cached, we don't regenerate the main proc
# nor the dispatchers? But if the dispatchers changed?
# XXX emit the dispatchers into its own .c file?
if n != nil:
m.initProc.options = initProcOptions(m)
genProcBody(m.initProc, n)
if m.hcrOn:
# make sure this is pulled in (meaning hcrGetGlobal() is called for it during init)
discard cgsym(m, "programResult")
if m.inHcrInitGuard:
endBlock(m.initProc)
if sfMainModule in m.module.flags:
if m.hcrOn:
# pull ("define" since they are inline when HCR is on) these functions in the main file
# so it can load the HCR runtime and later pass the library handle to the HCR runtime which
# will in turn pass it to the other modules it initializes so they can initialize the
# register/get procs so they don't have to have the definitions of these functions as well
discard cgsym(m, "nimLoadLibrary")
discard cgsym(m, "nimLoadLibraryError")
discard cgsym(m, "nimGetProcAddr")
discard cgsym(m, "procAddrError")
discard cgsym(m, "rawWrite")
# raise dependencies on behalf of genMainProc
if m.config.target.targetOS != osStandalone and m.config.selectedGC != gcNone:
discard cgsym(m, "initStackBottomWith")
if emulatedThreadVars(m.config) and m.config.target.targetOS != osStandalone:
discard cgsym(m, "initThreadVarsEmulation")
if m.g.forwardedProcs.len == 0:
incl m.flags, objHasKidsValid
let disp = generateMethodDispatchers(graph)
for x in disp: genProcAux(m, x.sym)
m.g.modulesClosed.add m
proc genForwardedProcs(g: BModuleList) =
# Forward declared proc:s lack bodies when first encountered, so they're given
# a second pass here
# Note: ``genProcNoForward`` may add to ``forwardedProcs``
while g.forwardedProcs.len > 0:
let
prc = g.forwardedProcs.pop()
ms = getModule(prc)
m = g.modules[ms.position]
if sfForward in prc.flags:
internalError(m.config, prc.info, "still forwarded: " & prc.name.s)
genProcNoForward(m, prc)
proc cgenWriteModules*(backend: RootRef, config: ConfigRef) =
let g = BModuleList(backend)
g.config = config
# we need to process the transitive closure because recursive module
# deps are allowed (and the system module is processed in the wrong
# order anyway)
genForwardedProcs(g)
for m in cgenModules(g):
m.writeModule(pending=true)
writeMapping(config, g.mapping)
if g.generatedHeader != nil: writeHeader(g.generatedHeader)
const cgenPass* = makePass(myOpen, myProcess, myClose)