This repository has been archived by the owner on Dec 11, 2023. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 0
/
gen-raw.go
356 lines (337 loc) · 14.6 KB
/
gen-raw.go
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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
package main
import (
"path/filepath"
"strconv"
"github.com/go-leap/fs"
"github.com/go-leap/str"
)
var (
s = strconv.Itoa
)
func genDump() error {
repl := ustr.Repl(
"b·writeN", tdot.BBuf.WriteN,
"b·writeB", tdot.BBuf.WriteB,
"b·writeS", tdot.BBuf.WriteS,
"b·len()", tdot.BBuf.Len,
)
for _, tdt := range tdot.Structs {
if fs := tdt.fixedSize(); fs > 0 && !optNoFixedSizeCode {
ensureImportFor(tdt.TName)
tdt.TmplR = "*me = *((*" + tdt.TName + ")(unsafe.Pointer(&data[*pos]))) ; *pos += " + s(fs)
tdt.TmplW = "b·writeN((*[" + s(fs) + "]byte)(unsafe.Pointer(me))[:])"
} else {
for i := 0; i < len(tdt.Fields); i++ {
tdf := tdt.Fields[i]
oneop := tdf.fixedsizeExtNumSkip > 0
if oneop && !optNoFixedSizeCode {
for f := 1; f <= tdf.fixedsizeExtNumSkip; f++ {
tdf.FExtNames += ", " + tdt.Fields[i+f].FName
}
addr, fse := "&me."+tdf.FName, s(tdf.fixedsizeExt)
if i += tdf.fixedsizeExtNumSkip; tdf.typeIdent[0] == '[' {
addr += "[0]"
}
tdf.TmplW = "b·writeN( (*[" + fse + "]byte)(unsafe.Pointer(" + addr + ")) [:] )"
tdf.TmplR = "*( (*[" + fse + "]byte)(unsafe.Pointer(" + addr + ")) ) = *( (*[" + fse + "]byte)(unsafe.Pointer(&data[p])) ) ; p += " + fse + " "
} else {
tdf.TmplR, tdf.TmplW = genForFieldOrVarOfNamedTypeRW(tdf.FName, "", tdt, tdf.typeIdent, "", 0, 0, tdf.taggedUnion)
}
tdf.TmplR, tdf.TmplW = repl.Replace(tdf.TmplR), repl.Replace(tdf.TmplW)
}
}
tdt.InitialBufSize = tdt.sizeHeur("me.").reduce().String()
tdt.TmplR, tdt.TmplW = repl.Replace(tdt.TmplR), repl.Replace(tdt.TmplW)
}
genFileName = filepath.Join(goPkgDirPath, genFileName)
src, err := genViaTmpl()
if err == nil {
err = ufs.WriteBinaryFile(genFileName, src)
}
return err
}
func genForFieldOrVarOfNamedTypeRW(fieldName string, altNoMe string, tds *tmplDotStruct, typeName string, tmpVarPref string, numIndir int, iterDepth int, taggedUnion []string) (tmplR string, tmplW string) {
nf, mfw, mfr, lf, nfr := fieldName, "me."+fieldName, "me."+fieldName, "l"+ustr.Replace(fieldName, ".", ""), ustr.Replace(fieldName, ".", "")
if altNoMe != "" {
if mfw = altNoMe; iterDepth > 0 {
if mfr = ustr.Drop(altNoMe, ':'); !ustr.Suff(mfr, "["+nf+"]") {
mfr += "[" + nf + "]"
}
}
}
if numIndir > 0 {
if mfr = "v" + s(numIndir) + s(iterDepth) + s(len(taggedUnion)) + ":"; tmpVarPref != "" {
mfw = tmpVarPref + s(numIndir-1) + s(iterDepth) + s(len(taggedUnion))
}
} else if altNoMe == "" && tmpVarPref != "" {
mfr = tmpVarPref // + nfr
} else if numIndir == 0 && iterDepth > 0 && altNoMe == "" && (ustr.Pref(nf, "k") || ustr.Pref(nf, "m")) {
mfr = "b" + nf
}
mfwd := mfw
if numIndir > 0 {
mfwd = "(" + ustr.Times("*", numIndir) + mfw + ")"
}
var cast string
if optSafeVarints {
cast = "uint64"
}
switch typeName {
case "bool":
tmplW = "if " + mfwd + " { b·writeB(1) } else { b·writeB(0) }"
tmplR = mfr + "= (data[p] == 1) ; p++ "
case "uint8", "byte":
tmplW = "b·writeB(" + mfwd + ")"
tmplR = mfr + "= data[p] ; p++ "
case "int8":
tmplW = genSizedW(nfr, mfwd, "1")
tmplR = genSizedR(mfr, typeName, "1")
case "string":
tmplW = lf + " := " + cast + "(len(" + mfw + ")) ; " + genLenW(nfr) + " ; b·writeS(" + mfw + ")"
tmplR = genLenR(nfr) + " ; " + mfr + "= string(data[p : p+" + lf + "]) ; p += " + lf
if iterDepth == 0 {
if tmplW = "{ " + tmplW + " }"; !ustr.Pref(mfr, "v") {
tmplR = "{ " + tmplR + " }"
}
}
case "int16", "uint16":
tmplW = genSizedW(nfr, mfwd, "2")
tmplR = genSizedR(mfr, typeName, "2")
case "rune", "int32", "float32", "uint32":
tmplW = genSizedW(nfr, mfwd, "4")
tmplR = genSizedR(mfr, typeName, "4")
case "complex64", "float64", "uint64", "int64":
tmplW = genSizedW(nfr, mfwd, "8")
tmplR = genSizedR(mfr, typeName, "8")
case "complex128":
tmplW = genSizedW(nfr, mfwd, "16")
tmplR = genSizedR(mfr, typeName, "16")
case "uint", "uintptr":
tmplW = genSizedW(nfr, mfwd, "uint64")
tmplR = genSizedR(mfr, typeName, "uint64")
case "int":
tmplW = genSizedW(nfr, mfwd, "int64")
tmplR = genSizedR(mfr, typeName, "int64")
default:
if typeName[0] == '*' {
// POINTER
numindir := len(typeName) - len(ustr.Skip(typeName, '*'))
tn, id := typeName[numindir:], s(iterDepth)+s(len(taggedUnion))
vpref, deref := "pv", ustr.Pref(tn, "[]") || ustr.Pref(tn, "map[") || tn == "string"
tmplR = "{ var p0" + id + " " + ustr.Times("*", numindir) + tn + " ;"
for i := 0; i < numindir; i++ {
if tmplR += "if p++; data[p-1] != 0 {"; i < (numindir - 1) {
tmplR += "var p" + s(i+1) + id + " " + ustr.Times("*", numindir-i-1) + tn + " ; "
}
if islast := i == (numindir - 1); i == 0 {
if tmplW += "if " + mfw + " == nil { b·writeB(0) } else { b·writeB(1) ; "; deref || !islast {
tmplW += "pv0" + id + " := *" + mfw + " ; "
}
} else {
if tmplW += "if pv" + s(i-1) + id + " == nil { b·writeB(0) } else { b·writeB(1) ; "; deref || !islast {
tmplW += "pv" + s(i) + id + " := *pv" + s(i-1) + id + " ; "
}
}
}
if numindir == 1 && !deref {
vpref = ""
}
tr, tw := genForFieldOrVarOfNamedTypeRW(nf, altNoMe, tds, tn, vpref, numindir, iterDepth, taggedUnion)
if numindir > 1 && !deref {
_, tw = genForFieldOrVarOfNamedTypeRW(nf, altNoMe, tds, tn, vpref, numindir-1, iterDepth, taggedUnion)
}
tmplR += "\n\t\t" + tr + " ; "
for i := numindir - 1; i >= 0; i-- {
if i == numindir-1 {
tmplR += " ; p" + s(i) + id + " = &v" + s(numindir) + id + " ; "
} else {
tmplR += " ; p" + s(i) + id + " = &p" + s(i+1) + id + " ; "
}
tmplR += "\n\t}\n\t"
}
tmplR += " ; " + mfr + " = p0" + id + " } "
tmplW += "\n\t\t" + tw
tmplW += "\n\t" + ustr.Times("}", numindir)
} else if ismap, pclose := ustr.Pref(typeName, "map["), ustr.IdxBMatching(typeName, ']', '['); pclose > 0 && (typeName[0] == '[' || ismap) {
// ARRAY / SLICE / MAP
arrfixedsize, slen, hasl := 0, typeName[1:pclose], false
if slen == "" || ismap {
if hasl, slen = true, "("+lf+")"; optSafeVarints {
slen = "int" + slen
}
ensureImportFor(typeName)
tmplR += genLenR(nfr) + " ; " + mfr + "= make(" + typeName + ", " + lf + ") ; "
tmplW += lf + " := " + cast + "(len(" + mfw + ")) ; " + genLenW(nfr) + " ; "
} else {
if numIndir > 0 {
ensureImportFor(typeName)
tmplR += mfr + "= " + typeName + "{} ; "
}
arrfixedsize = fixedSizeForTypeSpec(typeName)
}
valtypespec, idx := typeName[pclose+1:], "i"+s(iterDepth)
if ismap {
keytypespec, mk, mv := typeName[4:pclose], "k"+s(iterDepth), "m"+s(iterDepth)
tmplR += "for " + idx + " := 0; " + idx + " < " + slen + "; " + idx + "++ {"
tmplW += "for " + mk + ", " + mv + " := range " + mfw + " {"
tmplR += "\n\t\tvar b" + mk + " " + keytypespec
tmplR += "\n\t\tvar b" + mv + " " + valtypespec
tr, _ := genForFieldOrVarOfNamedTypeRW(mk, "", tds, keytypespec, "", 0, iterDepth+1, nil)
tmplR += "\n\t\t" + tr
tr, _ = genForFieldOrVarOfNamedTypeRW(mv, "", tds, valtypespec, "", 0, iterDepth+1, taggedUnion)
tmplR += "\n\t\t" + tr
tmplR += "\n\t\t" + ustr.Drop(mfr, ':') + "[b" + mk + "] = b" + mv
tmplR += "\n\t}"
_, tw := genForFieldOrVarOfNamedTypeRW(mk, mk, tds, keytypespec, "", 0, iterDepth+1, nil)
tmplW += "\n\t\t" + tw
_, tw = genForFieldOrVarOfNamedTypeRW(mv, mv, tds, valtypespec, "", 0, iterDepth+1, taggedUnion)
tmplW += "\n\t\t" + tw
tmplW += "\n\t}"
} else if afs := s(arrfixedsize); arrfixedsize > 0 && !optNoFixedSizeCode {
tmplR = genSizedR(mfr, typeName, afs)
tmplW = genSizedW(nfr, mfwd+"[0]", afs)
if valtypespec == "byte" || valtypespec == "uint8" {
if ustr.Pref(mfwd, "(*") && ustr.Suff(mfwd, ")") {
mfwd = mfwd[:len(mfwd)-1][1:]
}
if mfwd[0] == '*' {
tmplW = "b·writeN(" + ustr.Skip(mfwd, '*') + "[:])"
}
}
return
} else {
offr, offw := len(tmplR), len(tmplW)
if valtypespec == "byte" || valtypespec == "uint8" {
tmplR += "copy(" + ustr.Drop(mfr, ':') + "[:" + slen + "], data[p:" + slen + "]) ; p += " + slen
} else {
tmplR += "for " + idx + " := 0; " + idx + " < " + slen + "; " + idx + "++ {"
tr, _ := genForFieldOrVarOfNamedTypeRW(idx, mfr, tds, valtypespec, "", 0, iterDepth+1, taggedUnion)
tmplR += "\n\t\t" + tr + "\n\t}"
}
tmplW += "for " + idx + " := 0; " + idx + " < " + slen + "; " + idx + "++ {"
_, tw := genForFieldOrVarOfNamedTypeRW(idx, mfw+"["+idx+"]", tds, valtypespec, "", 0, iterDepth+1, taggedUnion)
tmplW += "\n\t\t" + tw + "\n\t}"
if fs := fixedSizeForTypeSpec(valtypespec); fs > 0 && optFixedSizeMaxSizeInGB > 0 && !optNoFixedSizeCode {
sfs, fixedsizemax := s(fs), int(optFixedSizeMaxSizeInGB*(1024*1024*1024))
maxlen := (fixedsizemax / fs) + 1
tmplW = tmplW[:offw] + " ; if " + slen + " > 0 && " + slen + " < " + s(maxlen) + " { " +
" b·writeN((*[" + s(fixedsizemax-1) + "]byte)(unsafe.Pointer(&" + ustr.Drop(mfw, ':') + "[0]))[:" + sfs + "*" + slen + "]) " +
" } else { " + tmplW[offw:] + "} ; "
tmplR = tmplR[:offr] + " ; if " + slen + " > 0 && " + slen + " < " + s(maxlen) + " { " +
" lmul := " + sfs + "*" + slen + " ; copy(((*[" + s(fixedsizemax-1) + "]byte)(unsafe.Pointer(&" + ustr.Drop(mfr, ':') + "[0])))[0:lmul], data[p:p+(lmul)]) ; p += (lmul) " +
" } else { " + tmplR[offr:] + " } ; "
}
}
if hasl && iterDepth == 0 {
if tmplW = " { " + tmplW + " } "; !ustr.Pref(mfr, "v") {
tmplR = " { " + tmplR + " } "
}
}
} else if len(taggedUnion) > 0 {
// TAGGED INTERFACE
if numIndir > 0 {
tmplR += " var " + ustr.Drop(mfr, ':') + " " + typeName + " ; "
}
tmplR += "{ t" + " := data[p] ; p++ ; switch t" + " {"
tmplW += "{ switch t" + " := " + mfwd + ".(type) {"
for ti, tu := range taggedUnion {
tr, _ := genForFieldOrVarOfNamedTypeRW(nf, "", tds, tu, "u", 0, iterDepth, nil)
tmplR += "\n\t\tcase " + s(ti+1) + ":\n\t\t\t" + "var u " + tu + " ; " + tr + " ; " + ustr.Drop(mfr, ':') + "= u"
_, tw := genForFieldOrVarOfNamedTypeRW(nf, "t", tds, tu, "", 0, iterDepth, nil)
tmplW += "\n\t\tcase " + tu + ":\n\t\t\tb·writeB(" + s(ti+1) + ") ; " + tw
}
tmplR += "\n\t\tdefault:\n\t\t\t" + ustr.Drop(mfr, ':') + "= nil"
if optIgnoreUnknownTypeCases {
tmplW += "\n\t\tdefault:\n\t\t\tb·writeB(0)"
} else {
if ustr.Pref(mfw, "me.") {
mfw = ", " + mfw[3:] + " field"
} else {
mfw = ""
}
tmplW += "\n\t\tcase nil:\n\t\t\tb·writeB(0)" + "\n\t\tdefault:\n\t\t\tpanic(\"" + tds.TName + ".marshalTo" + mfw + ": while attempting to serialize a non-nil " + typeName + ", encountered a concrete type not mentioned in your corresponding tagged-union field-tag\")\n\t\t\t// panic(fmt.Sprintf(\"%T\", t)) // don't want fmt in by default, but it's here to uncomment when the temporary need arises"
}
tmplR += "\n\t}}"
tmplW += "\n\t}}"
} else {
// OTHER
if fs := fixedSizeForTypeSpec(typeName); fs > 0 && !optNoFixedSizeCode {
ensureImportFor(typeName)
tmplR = mfr + "= *((*" + typeName + ")(unsafe.Pointer(&data[p]))) ; p += " + s(fs)
if mfwd[0] == '*' {
mfwd = mfwd[1:]
} else if ustr.Pref(mfwd, "(*") && ustr.Suff(mfwd, ")") {
mfwd = mfwd[:len(mfwd)-1][2:]
} else if ustr.Pref(mfwd, "(*") && ustr.Suff(mfwd, ")[0]") {
mfwd = mfwd[:len(mfwd)-4][2:]
} else {
mfwd = "&" + mfwd
}
tmplW = "b·writeN((*[" + s(fs) + "]byte)(unsafe.Pointer(" + mfwd + "))[:])"
} else if tsyn := typeSyns[typeName]; tsyn != "" {
tmplR, tmplW = genForFieldOrVarOfNamedTypeRW(fieldName, altNoMe, tds, tsyn, "", numIndir, iterDepth, taggedUnion)
tmplR = ustr.Replace(tmplR, "(*"+tsyn+")(unsafe.Pointer(", "(*"+typeName+")(unsafe.Pointer(")
} else {
var trpref string
if ustr.Pref(mfr, "v") {
ensureImportFor(typeName)
trpref = mfr + "= " + typeName + "{} ; "
}
tmplR = "{ " + genLenR(nfr) + " ; if " + lf + " > 0 { if err = " + ustr.Drop(mfr, ':') + ".UnmarshalBinary(data[p : p+" + lf + "]); err != nil { return } ; p += " + lf + " } }"
tmplW = "{ d, e := " + mfw + ".MarshalBinary() ; if err = e; err != nil { return } ; " + lf + " := " + cast + "(len(d)) ; " + genLenW(nfr) + " ; b·writeN(d) }"
var islocalserializablestruct bool
for tspec := range typeDefs {
if islocalserializablestruct = tspec.Name.Name == typeName; islocalserializablestruct {
if ustr.Pref(mfw, "(") && ustr.Suff(mfw, ")") && mfw[1] == '*' {
mfw = ustr.Skip(mfw[1:len(mfw)-1], '*')
}
tmplR = "if err = " + ustr.Drop(mfr, ':') + ".unmarshalFrom(&p, data/*, addrs*/); err != nil { return } ; "
tmplW = "if err = " + mfw + ".marshalTo(buf/*, addrs*/); err != nil { return } ; "
break
}
}
tmplR = trpref + tmplR
if wk := typeName + "·" + nf; (!islocalserializablestruct) && ustr.IdxB(typeName, '.') < 0 && !typeWarned[wk] {
typeWarned[wk] = true
println("take note: in-package type `" + typeName + "` will be (de)serialized (via `" + nf + "`) by `MarshalBinary`/`UnmarshalBinary` (instead of `marshalTo`/`unmarshalFrom`) because `gogen-dump` has not been instructed to generate serialization code for it. if this will compile at all, it will likely still not furnish the intended outcome.")
}
}
}
}
return
}
func genSizedR(mfr string, typeName string, byteSize string) string {
if byteSize == "int64" || byteSize == "uint64" {
if optSafeVarints {
return mfr + "= " + typeName + "(*((*" + byteSize + ")(unsafe.Pointer(&data[p])))) ; p += 8"
}
byteSize = "8"
}
ensureImportFor(typeName)
return mfr + "= *((*" + typeName + ")(unsafe.Pointer(&data[p]))) ; p += " + byteSize
}
func genSizedW(fieldName string, mfw string, byteSize string) string {
if byteSize == "int64" || byteSize == "uint64" {
if optSafeVarints {
return byteSize + "_" + fieldName + " := " + byteSize + "(" + mfw + ") ; b·writeN(((*[8]byte)(unsafe.Pointer(&" + byteSize + "_" + fieldName + ")))[:])"
}
byteSize = "8"
}
if ustr.Pref(mfw, "(*") && ustr.Suff(mfw, ")") {
return "b·writeN(((*[" + byteSize + "]byte)(unsafe.Pointer(" + mfw[2:len(mfw)-1] + ")))[:])"
} else if ustr.Pref(mfw, "(*") && ustr.Suff(mfw, ")[0]") {
return "b·writeN(((*[" + byteSize + "]byte)(unsafe.Pointer(" + mfw[2:len(mfw)-4] + ")))[:])"
} else if mfw[0] == '*' {
return "b·writeN(((*[" + byteSize + "]byte)(unsafe.Pointer(" + mfw[1:] + ")))[:])"
}
return "b·writeN(((*[" + byteSize + "]byte)(unsafe.Pointer(&(" + mfw + "))))[:])"
}
func genLenR(fieldName string) string {
if optSafeVarints {
return "l" + fieldName + " := int(*((*uint64)(unsafe.Pointer(&data[p])))) ; p += 8"
}
return "l" + fieldName + " := (*((*int)(unsafe.Pointer(&data[p])))) ; p += 8"
}
func genLenW(fieldName string) string {
return "b·writeN((*[8]byte)(unsafe.Pointer(&l" + fieldName + "))[:])"
}