1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
import ast, idents, lineinfos, modulegraphs, magicsys
proc genEnumToStrProc*(t: PType; info: TLineInfo; g: ModuleGraph): PSym =
result = newSym(skProc, getIdent(g.cache, "$"), t.owner, info)
let dest = newSym(skParam, getIdent(g.cache, "e"), result, info)
dest.typ = t
let res = newSym(skResult, getIdent(g.cache, "result"), result, info)
res.typ = getSysType(g, info, tyString)
result.typ = newType(tyProc, t.owner)
result.typ.n = newNodeI(nkFormalParams, info)
rawAddSon(result.typ, res.typ)
addSon(result.typ.n, 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, newSymNode(field),
newTree(nkStmtList, newTree(nkFastAsgn, newSymNode(res), newStrNode(val, info))))
#newIntTypeNode(nkIntLit, field.position, t)
body.add(caseStmt)
var n = newNodeI(nkProcDef, info, bodyPos+2)
for i in 0 ..< n.len: n.sons[i] = newNodeI(nkEmpty, info)
n.sons[namePos] = newSymNode(result)
n.sons[paramsPos] = result.typ.n
n.sons[bodyPos] = body
n.sons[resultPos] = newSymNode(res)
result.ast = n
incl result.flags, sfFromGeneric
proc searchObjCase(obj: PNode; field: PSym): PNode =
case obj.kind
of nkSym:
result = nil
of nkElse, nkOfBranch:
result = searchObjCase(obj.lastSon, field)
else:
if obj.kind == nkRecCase and obj[0].kind == nkSym and obj[0].sym == field:
result = obj
else:
for x in obj:
result = searchObjCase(x, field)
if result != nil: break
proc genCaseObjDiscMapping*(t: PType; field: PSym; info: TLineInfo; g: ModuleGraph): PSym =
result = newSym(skProc, getIdent(g.cache, "objDiscMapping"), t.owner, info)
let dest = newSym(skParam, getIdent(g.cache, "e"), result, info)
dest.typ = field.typ
let res = newSym(skResult, getIdent(g.cache, "result"), result, info)
res.typ = getSysType(g, info, tyUInt8)
result.typ = newType(tyProc, t.owner)
result.typ.n = newNodeI(nkFormalParams, info)
rawAddSon(result.typ, res.typ)
addSon(result.typ.n, newNodeI(nkEffectList, info))
result.typ.addParam dest
var body = newNodeI(nkStmtList, info)
var caseStmt = newNodeI(nkCaseStmt, info)
caseStmt.add(newSymNode dest)
let subObj = searchObjCase(t.n, field)
doAssert subObj != nil
for i in 1 ..< subObj.len:
let ofBranch = subObj[i]
var newBranch = newNodeI(ofBranch.kind, ofBranch.info)
for j in 0..ofBranch.len-2:
newBranch.add ofBranch[j]
newBranch.add newTree(nkStmtList, newTree(nkFastAsgn, newSymNode(res), newIntNode(nkInt8Lit, i)))
caseStmt.add newBranch
body.add(caseStmt)
var n = newNodeI(nkProcDef, info, bodyPos+2)
for i in 0 ..< n.len: n.sons[i] = newNodeI(nkEmpty, info)
n.sons[namePos] = newSymNode(result)
n.sons[paramsPos] = result.typ.n
n.sons[bodyPos] = body
n.sons[resultPos] = newSymNode(res)
result.ast = n
incl result.flags, sfFromGeneric
|