mirror of
https://github.com/nim-lang/Nim.git
synced 2026-08-19 21:31:39 +00:00
52 lines
1.7 KiB
Nim
52 lines
1.7 KiB
Nim
|
|
import ast, idents, lineinfos, modulegraphs, magicsys
|
|
|
|
when defined(nimPreviewSlimSystem):
|
|
import std/assertions
|
|
|
|
|
|
proc genEnumToStrProc*(t: PType; info: TLineInfo; g: ModuleGraph; idgen: IdGenerator): PSym =
|
|
result = newSym(skProc, getIdent(g.cache, "$"), idgen, t.owner, info)
|
|
|
|
let dest = newSym(skParam, getIdent(g.cache, "e"), idgen, result, info)
|
|
dest.typ = t
|
|
|
|
let res = newSym(skResult, getIdent(g.cache, "result"), idgen, result, info)
|
|
res.typ = getSysType(g, info, tyString)
|
|
|
|
result.typ = newType(tyProc, idgen, t.owner)
|
|
result.typ.n = newNodeI(nkFormalParams, info)
|
|
rawAddSon(result.typ, res.typ)
|
|
result.typ.n.add newNodeI(nkEffectList, info)
|
|
|
|
result.typ.addParam dest
|
|
|
|
var body = newNodeI(nkStmtList, info)
|
|
var caseStmt = newNodeI(nkCaseStmt, info)
|
|
caseStmt.add(newSymNode dest)
|
|
|
|
# copy the branches over, but replace the fields with the for loop body:
|
|
for i in 0..<t.n.len:
|
|
assert(t.n[i].kind == nkSym)
|
|
var field = t.n[i].sym
|
|
let val = if field.ast == nil: field.name.s else: field.ast.strVal
|
|
caseStmt.add newTree(nkOfBranch, newIntTypeNode(field.position, t),
|
|
newTree(nkStmtList, newTree(nkFastAsgn, newSymNode(res), newStrNode(val, info))))
|
|
#newIntTypeNode(nkIntLit, field.position, t)
|
|
# safety branch for invalid data:
|
|
caseStmt.add newTree(nkElse,
|
|
newTree(nkStmtList, newTree(nkFastAsgn, newSymNode(res),
|
|
newStrNode("", info))))
|
|
|
|
body.add(caseStmt)
|
|
|
|
var n = newNodeI(nkProcDef, info, bodyPos+2)
|
|
for i in 0..<n.len: n[i] = newNodeI(nkEmpty, info)
|
|
n[namePos] = newSymNode(result)
|
|
n[paramsPos] = result.typ.n
|
|
n[bodyPos] = body
|
|
n[resultPos] = newSymNode(res)
|
|
result.ast = n
|
|
incl result.flagsImpl, {sfFromGeneric, sfNeverRaises}
|
|
setHookDisamb(g, result, "$enumtostr", t)
|