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#
#
# The Nim Compiler
# (c) Copyright 2015 Andreas Rumpf
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
#
# Unfortunately this cannot be a module yet:
#import vmdeps, vm
from math import sqrt, ln, log10, log2, exp, round, arccos, arcsin,
arctan, arctan2, cos, cosh, hypot, sinh, sin, tan, tanh, pow, trunc,
floor, ceil, `mod`
from os import getEnv, existsEnv, dirExists, fileExists, putEnv, walkDir, getAppFilename
from md5 import getMD5
from sighashes import symBodyDigest
from times import cpuTime
from hashes import hash
from osproc import nil
import vmconv
template mathop(op) {.dirty.} =
registerCallback(c, "stdlib.math." & astToStr(op), `op Wrapper`)
template osop(op) {.dirty.} =
registerCallback(c, "stdlib.os." & astToStr(op), `op Wrapper`)
template timesop(op) {.dirty.} =
registerCallback(c, "stdlib.times." & astToStr(op), `op Wrapper`)
template systemop(op) {.dirty.} =
registerCallback(c, "stdlib.system." & astToStr(op), `op Wrapper`)
template ioop(op) {.dirty.} =
registerCallback(c, "stdlib.io." & astToStr(op), `op Wrapper`)
template macrosop(op) {.dirty.} =
registerCallback(c, "stdlib.macros." & astToStr(op), `op Wrapper`)
template md5op(op) {.dirty.} =
registerCallback(c, "stdlib.md5." & astToStr(op), `op Wrapper`)
template wrap1f_math(op) {.dirty.} =
proc `op Wrapper`(a: VmArgs) {.nimcall.} =
setResult(a, op(getFloat(a, 0)))
mathop op
template wrap2f_math(op) {.dirty.} =
proc `op Wrapper`(a: VmArgs) {.nimcall.} =
setResult(a, op(getFloat(a, 0), getFloat(a, 1)))
mathop op
template wrap0(op, modop) {.dirty.} =
proc `op Wrapper`(a: VmArgs) {.nimcall.} =
setResult(a, op())
modop op
template wrap1s(op, modop) {.dirty.} =
proc `op Wrapper`(a: VmArgs) {.nimcall.} =
setResult(a, op(getString(a, 0)))
modop op
template wrap2s(op, modop) {.dirty.} =
proc `op Wrapper`(a: VmArgs) {.nimcall.} =
setResult(a, op(getString(a, 0), getString(a, 1)))
modop op
template wrap2si(op, modop) {.dirty.} =
proc `op Wrapper`(a: VmArgs) {.nimcall.} =
setResult(a, op(getString(a, 0), getInt(a, 1)))
modop op
template wrap1svoid(op, modop) {.dirty.} =
proc `op Wrapper`(a: VmArgs) {.nimcall.} =
op(getString(a, 0))
modop op
template wrap2svoid(op, modop) {.dirty.} =
proc `op Wrapper`(a: VmArgs) {.nimcall.} =
op(getString(a, 0), getString(a, 1))
modop op
template wrapDangerous(op, modop) {.dirty.} =
if vmopsDanger notin c.config.features and (defined(nimsuggest) or c.config.cmd == cmdCheck):
proc `op Wrapper`(a: VmArgs) {.nimcall.} =
discard
modop op
else:
proc `op Wrapper`(a: VmArgs) {.nimcall.} =
op(getString(a, 0), getString(a, 1))
modop op
proc getCurrentExceptionMsgWrapper(a: VmArgs) {.nimcall.} =
setResult(a, if a.currentException.isNil: ""
else: a.currentException[3].skipColon.strVal)
proc getCurrentExceptionWrapper(a: VmArgs) {.nimcall.} =
setResult(a, a.currentException)
proc staticWalkDirImpl(path: string, relative: bool): PNode =
result = newNode(nkBracket)
for k, f in walkDir(path, relative):
result.add toLit((k, f))
when defined(nimHasInvariant):
from std / compilesettings import SingleValueSetting, MultipleValueSetting
proc querySettingImpl(conf: ConfigRef, switch: BiggestInt): string =
case SingleValueSetting(switch)
of arguments: result = conf.arguments
of outFile: result = conf.outFile.string
of outDir: result = conf.outDir.string
of nimcacheDir: result = conf.getNimcacheDir().string
of projectName: result = conf.projectName
of projectPath: result = conf.projectPath.string
of projectFull: result = conf.projectFull.string
of command: result = conf.command
of commandLine: result = conf.commandLine
of linkOptions: result = conf.linkOptions
of compileOptions: result = conf.compileOptions
of ccompilerPath: result = conf.cCompilerPath
of backend: result = $conf.backend
proc querySettingSeqImpl(conf: ConfigRef, switch: BiggestInt): seq[string] =
template copySeq(field: untyped): untyped =
for i in field: result.add i.string
case MultipleValueSetting(switch)
of nimblePaths: copySeq(conf.nimblePaths)
of searchPaths: copySeq(conf.searchPaths)
of lazyPaths: copySeq(conf.lazyPaths)
of commandArgs: result = conf.commandArgs
of cincludes: copySeq(conf.cIncludes)
of clibs: copySeq(conf.cLibs)
proc registerAdditionalOps*(c: PCtx) =
proc gorgeExWrapper(a: VmArgs) =
let ret = opGorge(getString(a, 0), getString(a, 1), getString(a, 2),
a.currentLineInfo, c.config)
setResult a, ret.toLit
proc getProjectPathWrapper(a: VmArgs) =
setResult a, c.config.projectPath.string
wrap1f_math(sqrt)
wrap1f_math(ln)
wrap1f_math(log10)
wrap1f_math(log2)
wrap1f_math(exp)
wrap1f_math(round)
wrap1f_math(arccos)
wrap1f_math(arcsin)
wrap1f_math(arctan)
wrap2f_math(arctan2)
wrap1f_math(cos)
wrap1f_math(cosh)
wrap2f_math(hypot)
wrap1f_math(sinh)
wrap1f_math(sin)
wrap1f_math(tan)
wrap1f_math(tanh)
wrap2f_math(pow)
wrap1f_math(trunc)
wrap1f_math(floor)
wrap1f_math(ceil)
wrap1s(getMD5, md5op)
proc `mod Wrapper`(a: VmArgs) {.nimcall.} =
setResult(a, `mod`(getFloat(a, 0), getFloat(a, 1)))
registerCallback(c, "stdlib.math.mod", `mod Wrapper`)
when defined(nimcore):
wrap2s(getEnv, osop)
wrap1s(existsEnv, osop)
wrap2svoid(putEnv, osop)
wrap1s(dirExists, osop)
wrap1s(fileExists, osop)
wrapDangerous(writeFile, ioop)
wrap1s(readFile, ioop)
wrap2si(readLines, ioop)
systemop getCurrentExceptionMsg
systemop getCurrentException
registerCallback c, "stdlib.*.staticWalkDir", proc (a: VmArgs) {.nimcall.} =
setResult(a, staticWalkDirImpl(getString(a, 0), getBool(a, 1)))
when defined(nimHasInvariant):
registerCallback c, "stdlib.compilesettings.querySetting", proc (a: VmArgs) =
setResult(a, querySettingImpl(c.config, getInt(a, 0)))
registerCallback c, "stdlib.compilesettings.querySettingSeq", proc (a: VmArgs) =
setResult(a, querySettingSeqImpl(c.config, getInt(a, 0)))
if defined(nimsuggest) or c.config.cmd == cmdCheck:
discard "don't run staticExec for 'nim suggest'"
else:
systemop gorgeEx
macrosop getProjectPath
registerCallback c, "stdlib.os.getCurrentCompilerExe", proc (a: VmArgs) {.nimcall.} =
setResult(a, getAppFilename())
registerCallback c, "stdlib.macros.symBodyHash", proc (a: VmArgs) =
let n = getNode(a, 0)
if n.kind != nkSym:
stackTrace(c, PStackFrame(prc: c.prc.sym, comesFrom: 0, next: nil), c.exceptionInstr,
"symBodyHash() requires a symbol. '" & $n & "' is of kind '" & $n.kind & "'", n.info)
setResult(a, $symBodyDigest(c.graph, n.sym))
registerCallback c, "stdlib.macros.isExported", proc(a: VmArgs) =
let n = getNode(a, 0)
if n.kind != nkSym:
stackTrace(c, PStackFrame(prc: c.prc.sym, comesFrom: 0, next: nil), c.exceptionInstr,
"isExported() requires a symbol. '" & $n & "' is of kind '" & $n.kind & "'", n.info)
setResult(a, sfExported in n.sym.flags)
proc hashVmImpl(a: VmArgs) =
var res = hashes.hash(a.getString(0), a.getInt(1).int, a.getInt(2).int)
if c.config.backend == backendJs:
# emulate JS's terrible integers:
res = cast[int32](res)
setResult(a, res)
registerCallback c, "stdlib.hashes.hashVmImpl", hashVmImpl
proc hashVmImplByte(a: VmArgs) =
# nkBracket[...]
let sPos = a.getInt(1).int
let ePos = a.getInt(2).int
let arr = a.getNode(0)
var bytes = newSeq[byte](arr.len)
for i in 0..<arr.len:
bytes[i] = byte(arr[i].intVal and 0xff)
var res = hashes.hash(bytes, sPos, ePos)
if c.config.backend == backendJs:
# emulate JS's terrible integers:
res = cast[int32](res)
setResult(a, res)
registerCallback c, "stdlib.hashes.hashVmImplByte", hashVmImplByte
registerCallback c, "stdlib.hashes.hashVmImplChar", hashVmImplByte
if optBenchmarkVM in c.config.globalOptions or vmopsDanger in c.config.features:
wrap0(cpuTime, timesop)
else:
proc cpuTime(): float = 5.391245e-44 # Randomly chosen
wrap0(cpuTime, timesop)
if vmopsDanger in c.config.features:
## useful procs but these should be opt-in because they may impact
## reproducible builds and users need to understand that this runs at CT.
## Note that `staticExec` can already do equal amount of damage so it's more
## of a semantic issue than a security issue.
registerCallback c, "stdlib.os.getCurrentDir", proc (a: VmArgs) {.nimcall.} =
setResult(a, os.getCurrentDir())
registerCallback c, "stdlib.osproc.execCmdEx", proc (a: VmArgs) {.nimcall.} =
let options = getNode(a, 1).fromLit(set[osproc.ProcessOption])
a.setResult osproc.execCmdEx(getString(a, 0), options).toLit
registerCallback c, "stdlib.times.getTime", proc (a: VmArgs) {.nimcall.} =
setResult(a, times.getTime().toLit)
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