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Files
gozel/cmd/gen/scan.go
fumiama 6522bde914 feat(examples): add image_scale (#7)
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
2026-03-29 17:11:22 +08:00

799 lines
24 KiB
Go

package main
import (
"bufio"
"bytes"
"fmt"
"io"
"os"
"path"
"strconv"
"strings"
"unicode"
)
const (
numbergenerics = "~int| ~uint32 | ~uint64 | ~uintptr"
)
var (
typemap = map[string]string{
"char": "byte",
"char*": "*byte",
"char *": "*byte",
"const char*": "*byte",
"const char *": "*byte",
"char**": "**byte",
"const char**": "**byte",
"char***": "***byte",
"const char***": "***byte",
"void*": "unsafe.Pointer",
"void *": "unsafe.Pointer",
"const void*": "unsafe.Pointer",
"void**": "*unsafe.Pointer",
"void **": "*unsafe.Pointer",
"const void**": "*unsafe.Pointer",
"void***": "**unsafe.Pointer",
"void ***": "**unsafe.Pointer",
"const void***": "**unsafe.Pointer",
"size_t": "uintptr",
"size_t*": "*uintptr",
"size_t *": "*uintptr",
"int": "int32",
"unsigned int": "uint32",
"float": "float32",
"double": "float64",
"float*": "*float32",
"double*": "*float64",
}
unsafeExcludeRegions = map[string]struct{}{
"core_bfloat16conversions": {},
"core_globaloffset": {},
"core_linkonceodr": {},
"core_subgroups": {},
"tols_metricRuntimeEnableDisable": {},
}
zecallExcludeRegions = map[string]struct{}{
"core_bandwidth": {},
"core_bfloat16conversions": {},
"core_CacheLineSize": {},
"core_callbacks": {},
"core_common": {},
"core_counterbasedeventpool": {},
"core_deviceipversion": {},
"core_deviceLUID": {},
"core_deviceusablememproperties": {},
"core_driverDDIHandles": {},
"core_EUCount": {},
"core_externalMemMap": {},
"core_floatAtomics": {},
"core_imageFormatSupport": {},
"core_imageviewplanar": {},
"core_kernelMaxGroupSizeProperties": {},
"core_linkonceodr": {},
"core_memoryCompressionHints": {},
"core_memoryProperties": {},
"core_powersavinghint": {},
"core_program": {},
"core_raytracing": {},
"core_relaxedAllocLimits": {},
"core_SRGB": {},
"core_subAllocationsProperties": {},
"core_subgroups": {},
"sysm_common": {},
"sysm_eccState": {},
"sysm_memoryBwCounterValidBits": {},
"sysm_memPageOfflineState": {},
"sysm_powerDomainProperties": {},
"tols_common": {},
"tols_metricExportMemory": {},
}
unionSizes = map[string]int{
"zet_value_t": 8,
"zet_debug_event_info_t": 32,
"zet_value_info_exp_t": 16,
}
)
var infhcache = make(map[string]string, 1024)
func infh(name string) string {
if s, ok := infhcache[name]; ok {
return s
}
s := " [" + name + "]"
infhcache[name] = s
return s
}
func scanHeader(name string, scan *bufio.Scanner) {
ln := 0
var regionfile *os.File
fileheadersb := strings.Builder{}
region := ""
fsz := int64(0)
for scan.Scan() {
ln++
t := scan.Text()
switch {
// file headers
case strings.HasPrefix(t, "/*") || strings.HasPrefix(t, " *") || strings.HasPrefix(t, " */"):
fileheadersb.WriteString(t)
fileheadersb.WriteString("\n")
// pragma start
case strings.HasPrefix(t, "#pragma region "):
region = strings.TrimSpace(t[15:])
if region == "" {
panic(fmt.Sprintf("%s L%d: unexpected empty region", name, ln))
}
fmt.Println(infh(name), "scanning region", region)
k := fmt.Sprint(name, "_", region)
f, err := os.Create(path.Join("gozel", fmt.Sprint(k, ".go")))
if err != nil {
panic(fmt.Sprintf("%s L%d: cannot create region %s, err: %v", name, ln, region, err))
}
f.WriteString("// Code generated by cmd/gen. DO NOT EDIT.\n\n")
f.WriteString(fileheadersb.String())
f.WriteString("\n")
f.WriteString("package gozel\n\n")
noimport := true
sb := strings.Builder{}
sb.WriteString("import (")
if _, ok := unsafeExcludeRegions[k]; !ok {
sb.WriteString("\n\t\"unsafe\"\n")
noimport = false
}
if _, ok := zecallExcludeRegions[k]; !ok {
sb.WriteString("\n\t\"github.com/fumiama/gozel/internal/zecall\"\n")
noimport = false
}
sb.WriteString(")\n\n")
if !noimport {
f.WriteString(sb.String())
}
regionfile = f
stat, err := f.Stat()
if err != nil {
panic(fmt.Sprintf("%s L%d: cannot stat region file %s, err: %v", name, ln, region, err))
}
fsz = stat.Size()
// block barrier
case strings.HasPrefix(t, "///////////////////////////////////////////////////////////////////////////////"):
fmt.Println(" [scan] enter", region, "block")
ln = scanBlocks(name, scan, regionfile, ln)
fmt.Println(" [scan] leave", region, "block")
// pragma end
case strings.HasPrefix(t, "#pragma endregion"):
nm := regionfile.Name()
stat, err := regionfile.Stat()
if err != nil {
panic(fmt.Sprintf("%s L%d: cannot stat region file %s, err: %v", name, ln, region, err))
}
sz := stat.Size()
fmt.Println(infh(name), "close region", nm)
_ = regionfile.Close()
if fsz == sz {
fmt.Println("[warn] delete unchanged region file", nm)
_ = os.Remove(nm)
}
regionfile = nil
// skip outer #
case strings.HasPrefix(t, "#") || t == "" || strings.HasPrefix(t, "// ") ||
strings.Contains(t, `extern "C"`):
fmt.Println(" [scan] skip", t)
continue
default:
panic(fmt.Sprintf("%s L%d: unexpected line %s", name, ln, t))
}
}
}
func checkSymbolName(
ln int, name, sname, goname string,
sb *strings.Builder, f *os.File, eq func() *symbol) bool {
if _, ok := symtab[sname]; ok {
panic(fmt.Sprintf("%s L%d: func #define %s has been defined", name, ln, sname))
}
enumsname := strings.TrimSuffix(sname, "_t") + "s_t"
if _, ok := symtab[enumsname]; ok {
fmt.Println("[warn] redirect name", sname, "to", enumsname)
return true
}
symtab[sname] = eq()
if sb.Len() == 0 {
panic(fmt.Sprintf("%s L%d: unexpected non-comment for symbol %s", name, ln, sname))
}
brief := " " + goname
if goname != sname {
brief = fmt.Sprint(brief, " (", sname, ")")
}
f.WriteString(strings.Replace(sb.String(), "/ @brief", brief, 1))
sb.Reset()
return false
}
func scanBlocks(
name string, scan *bufio.Scanner, f *os.File,
ln int,
) int {
sb := strings.Builder{}
ppskip2nextblk := false
ppifdepth := 0
isparsing := func() bool {
return ppifdepth > 0
}
for scan.Scan() {
ln++
t := scan.Text()
switch {
// block end
case t == "":
if isparsing() {
continue
}
if sb.Len() != 0 {
fmt.Printf("[warn] %s L%d: non-0 sb at block end: %s\n", name, ln, &sb)
}
return ln
case ppskip2nextblk:
continue
// is definition's comment
case strings.HasPrefix(t, "/// "):
sb.WriteString(t)
sb.WriteString("\n")
case strings.HasPrefix(t, "#if"):
if len(t) <= 8 {
panic(fmt.Sprintf("%s L%d: unexpected short #if", name, ln))
}
if t[3] == ' ' { // is platform related judgement
ppskip2nextblk = true
continue
}
if t[:8] != "#ifndef " {
panic(fmt.Sprintf("%s L%d: unexpected #if type %s", name, ln, t))
}
sname := strings.TrimSpace(t[8:])
_, ok := symtab[sname]
if ok {
ln = skip2endif(scan, ln)
continue
}
ppifdepth++
case strings.HasPrefix(t, "#endif"):
ppifdepth--
if ppifdepth < 0 {
panic(fmt.Sprintf("%s L%d: unexpected unpaired #endif", name, ln))
}
case strings.HasPrefix(t, "#define "):
argn, argv, ok := strings.Cut(t[8:], " ")
if !ok {
panic(fmt.Sprintf("%s L%d: unexpected short #define line %s", name, ln, t))
}
if !strings.Contains(argn, "(") { // is const define
sname := strings.TrimSpace(argn)
val := symtab.apply(strings.TrimSpace(argv))
checkSymbolName(ln, name, sname, sname, &sb, f, func() *symbol {
return newSymbolConst(sname, val, symbolSubTypeDefine)
})
f.WriteString("const ")
f.WriteString(sname)
f.WriteString(" = ")
f.WriteString(val)
f.WriteString("\n\n")
continue
}
sname, argseval, ok := strings.Cut(t[8:], "(")
if !ok {
panic(fmt.Sprintf("%s L%d: unexpected #define line %s", name, ln, t))
}
args, n, err := getInsideRoundBrakets(argseval)
if err != nil {
panic(fmt.Sprintf("%s L%d: unexpected args bracket err: %v", name, ln, err))
}
sname = strings.TrimSpace(sname)
args = strings.TrimSpace(args)
eval := strings.TrimSpace(argseval[n+1:])
checkSymbolName(ln, name, sname, sname, &sb, f, func() *symbol {
return newSymbolFunc(sname, args, eval, symbolSubTypeDefine)
})
f.WriteString("func ")
f.WriteString(sname)
f.WriteString("[T ")
f.WriteString(numbergenerics)
f.WriteString("](")
f.WriteString(strings.Join(strings.Split(args, ","), " T,"))
f.WriteString(" T) T {\n\treturn ")
f.WriteString(eval)
f.WriteString("\n}\n\n")
case strings.HasPrefix(t, "typedef "):
ln = scanTypedef(name, scan, f, ln, t, &sb)
case strings.HasPrefix(t, "ZE_APIEXPORT "):
if !strings.HasSuffix(t, " ZE_APICALL") {
panic(fmt.Sprintf("%s L%d: unexpected func line %s", name, ln, t))
}
ln = scanFunc(name, scan, f, ln, t, &sb)
case strings.HasPrefix(t, "static const ") && strings.HasSuffix(t, "= {"):
t = strings.TrimSpace(t[13 : len(t)-3])
i := strings.LastIndex(t, " ")
if i <= 0 {
panic(fmt.Sprintf("%s L%d: unexpected short var %s", name, ln, t))
}
typ := symtab.apply(strings.TrimSpace(t[:i]))
rnam := []rune(strings.TrimSpace(t[i+1:]))
rnam[0] = unicode.ToUpper(rnam[0])
nam := string(rnam)
f.WriteString(strings.Replace(sb.String(), "/ @brief", " "+nam, 1))
sb.Reset()
f.WriteString("var ")
f.WriteString(nam)
f.WriteString(" = ")
f.WriteString(typ)
f.WriteString("{")
for {
f.WriteString("\n")
s, isfin := scanln(name, scan, &ln)
if isfin {
break
}
s = strings.TrimSpace(s)
f.WriteString("\t")
if strings.HasPrefix(s, "0,") && strings.Contains(s, "///< p") {
f.WriteString("nil,")
f.WriteString(s[2:])
} else {
f.WriteString(s)
}
}
f.WriteString("}\n\n")
default:
panic(fmt.Sprintf("%s L%d: unexpected line %s", name, ln, t))
}
}
return ln
}
func scanTypedef(
name string, scan *bufio.Scanner, f *os.File,
ln int, firstln string, sb *strings.Builder,
) int {
s, newln := get1sentence(firstln, scan, ln)
if newln < 0 {
panic(fmt.Sprintf("%s L%d: unexpected sentence end from", name, ln))
}
ln = newln
if strings.Contains(s, "\n") { // multi-line typedef
lines := strings.Split(s, "\n")
if strings.Contains(lines[0], " (*") || strings.Contains(lines[0], "ZE_APICALL") { // is func ptr typedef
_, remains, ok := strings.Cut(lines[0], " (*")
if !ok {
_, remains, ok = strings.Cut(lines[0], "ZE_APICALL")
if !ok {
panic(fmt.Sprintf("%s L%d: unexpected func typdef line %s", name, ln, firstln))
}
}
fnname, _, _ := strings.Cut(strings.TrimPrefix(strings.TrimSpace(remains), "*"), "_t")
fnname = strings.TrimSpace(fnname)
if fnname == "" {
panic(fmt.Sprintf("%s L%d: unexpected func typdef line %s", name, ln, firstln))
}
goname := us2camel(fnname)
fnname += "_t"
checkSymbolName(ln, name, fnname, goname, sb, f, func() *symbol {
return newSymbolConst(fnname, goname, symbolSubTypeFuncPtr)
})
f.WriteString("// gozel warn: please use C function pointer loaded from C library!\n")
f.WriteString("type ")
f.WriteString(goname)
f.WriteString(" uintptr\n\n")
return ln
}
if len(lines) < 4 {
panic(fmt.Sprintf("%s L%d: unexpected short multi typdef line %s", name, ln, firstln))
}
if lines[1] != "{" {
panic(fmt.Sprintf("%s L%d: unexpected non-{ multi typdef line %s", name, ln, firstln))
}
switch {
case strings.Contains(lines[0], " struct "):
fsb := bytes.NewBuffer(make([]byte, 0, 256))
for i, stat := range lines[2:] {
if strings.HasPrefix(stat, "}") {
lines = lines[2+i:]
break
}
fsb.WriteString("\n")
if stat == "" {
continue
}
stat = strings.TrimSpace(stat)
vname := ""
c := ""
switch {
case strings.HasPrefix(stat, "///< "):
fsb.Truncate(fsb.Len() - 1)
fsb.WriteString(stat[4:])
case strings.HasPrefix(stat, "char ") || strings.HasPrefix(stat, "void* ") ||
strings.HasPrefix(stat, "const void* ") || strings.HasPrefix(stat, "int ") ||
strings.HasPrefix(stat, "const void** ") || strings.HasPrefix(stat, "const char* ") ||
strings.HasPrefix(stat, "const char** ") || strings.HasPrefix(stat, "float ") ||
strings.HasPrefix(stat, "double ") || strings.HasPrefix(stat, "void** ") ||
strings.HasPrefix(stat, "const void*** ") || strings.HasPrefix(stat, "void*** ") ||
strings.HasPrefix(stat, "const char*** ") || strings.HasPrefix(stat, "char** ") ||
strings.HasPrefix(stat, "char*** "):
remains, sz := "", ""
ok := false
remains, c, ok = strings.Cut(stat, ";")
if !ok {
panic(fmt.Sprintf("%s L%d: unsupported non-end line %s", name, ln, stat))
}
c = strings.TrimPrefix(strings.TrimSpace(c), "//")
remains = strings.TrimSpace(remains)
i := strings.LastIndex(remains, " ")
vname = remains[i+1:]
tn := strings.TrimSpace(remains[:i])
tname, ok := typemap[tn]
if !ok {
panic(fmt.Sprintf("%s L%d: unsupported type %s", name, ln, tname))
}
vname, sz, ok = strings.Cut(vname, "[")
vname = us2camel(strings.TrimSpace(vname))
fsb.WriteString("\t")
if ok { // is array
fsb.WriteString(vname)
fsb.WriteString(" [")
fsb.WriteString(sz)
fsb.WriteString(tname)
} else {
fsb.WriteString(vname)
fsb.WriteString(" ")
fsb.WriteString(tname)
}
case strings.Contains(stat, "_t "):
remains, sz := "", ""
ok := false
remains, c, ok = strings.Cut(stat, ";")
if !ok {
panic(fmt.Sprintf("%s L%d: unsupported non-end line %s", name, ln, stat))
}
c = strings.TrimPrefix(strings.TrimSpace(c), "//")
tname, remains, ok := strings.Cut(remains, "_t ")
if !ok {
panic(fmt.Sprintf("%s L%d: unexpected statement %s", name, ln, stat))
}
tname = strings.TrimSpace(strings.ReplaceAll(tname, "const ", ""))
k := tname + "_t"
if symtab.contains(k) {
tname = symtab[k].replace(k)
} else if convname, ok := typemap[k]; ok {
tname = convname
}
vname, sz, ok = strings.Cut(remains, "[")
vname = us2camel(strings.TrimSpace(vname))
fsb.WriteString("\t")
if ok { // is array
fsb.WriteString(vname)
fsb.WriteString(" [")
fsb.WriteString(sz)
fsb.WriteString(tname)
} else {
fsb.WriteString(vname)
fsb.WriteString(" ")
fsb.WriteString(tname)
}
case strings.Contains(stat, "_t* "):
remains, sz := "", ""
ok := false
remains, c, ok = strings.Cut(stat, ";")
if !ok {
panic(fmt.Sprintf("%s L%d: unsupported non-end line %s", name, ln, stat))
}
c = strings.TrimPrefix(strings.TrimSpace(c), "//")
tname, remains, ok := strings.Cut(remains, "_t* ")
if !ok {
panic(fmt.Sprintf("%s L%d: unexpected statement %s", name, ln, stat))
}
tname = strings.TrimSpace(strings.ReplaceAll(tname, "const ", ""))
k := tname + "_t"
if symtab.contains(k) {
tname = symtab[k].replace(k)
} else if convname, ok := typemap[k]; ok {
tname = convname
}
vname, sz, ok = strings.Cut(remains, "[")
vname = us2camel(strings.TrimSpace(vname))
fsb.WriteString("\t")
if ok { // is array
fsb.WriteString(vname)
fsb.WriteString(" [")
fsb.WriteString(sz)
fsb.WriteString("*")
fsb.WriteString(tname)
} else {
fsb.WriteString(vname)
fsb.WriteString(" *")
fsb.WriteString(tname)
}
case strings.Contains(stat, "_t** "):
remains, sz := "", ""
ok := false
remains, c, ok = strings.Cut(stat, ";")
if !ok {
panic(fmt.Sprintf("%s L%d: unsupported non-end line %s", name, ln, stat))
}
c = strings.TrimPrefix(strings.TrimSpace(c), "//")
tname, remains, ok := strings.Cut(remains, "_t** ")
if !ok {
panic(fmt.Sprintf("%s L%d: unexpected statement %s", name, ln, stat))
}
tname = strings.TrimSpace(strings.ReplaceAll(tname, "const ", ""))
k := tname + "_t"
if symtab.contains(k) {
tname = symtab[k].replace(k)
} else if convname, ok := typemap[k]; ok {
tname = convname
}
vname, sz, ok = strings.Cut(remains, "[")
vname = us2camel(strings.TrimSpace(vname))
fsb.WriteString("\t")
if ok { // is array
fsb.WriteString(vname)
fsb.WriteString(" [")
fsb.WriteString(sz)
fsb.WriteString("**")
fsb.WriteString(tname)
} else {
fsb.WriteString(vname)
fsb.WriteString(" **")
fsb.WriteString(tname)
}
default:
panic(fmt.Sprintf("%s L%d: unexpected statement %s", name, ln, stat))
}
if c != "" {
fsb.WriteString("\t// ")
fsb.WriteString(strings.Replace(c, "/<", vname, 1))
}
}
if len(lines) != 1 {
panic(fmt.Sprintf("%s L%d: unexpected len > 1 last lines %s", name, ln, strings.Join(lines, "\n")))
}
if !strings.HasPrefix(lines[0], "}") {
panic(fmt.Sprintf("%s L%d: unexpected last line %s", name, ln, lines[0]))
}
sname := strings.TrimSuffix(strings.TrimSpace(lines[0][1:]), ";")
val := us2camel(strings.TrimSuffix(sname, "_t"))
checkSymbolName(ln, name, sname, val, sb, f, func() *symbol {
return newSymbolConst(sname, val, symbolSubTypeLargeStruct)
})
f.WriteString("type ")
f.WriteString(val)
f.WriteString(" struct {")
_, _ = io.Copy(f, fsb)
f.WriteString("\n}\n\n")
return ln
case strings.Contains(lines[0], " enum "):
fsb := strings.Builder{}
iscontinouscomment := false
for i, stat := range lines[2:] {
if strings.HasPrefix(stat, "}") {
lines = lines[2+i:]
break
}
fsb.WriteString("\n")
if stat == "" {
continue
}
stat = strings.TrimSpace(stat)
if strings.HasPrefix(stat, "//") {
if !iscontinouscomment {
fsb.WriteString("\n")
}
fsb.WriteString("\t")
fsb.WriteString(stat)
iscontinouscomment = true
continue
}
if iscontinouscomment {
fsb.WriteString("\n")
}
iscontinouscomment = false
constval, comment, ok := strings.Cut(stat, "//")
if !ok {
panic(fmt.Sprintf("%s L%d: unexpected enum line %s", name, ln, stat))
}
cname, _, _ := strings.Cut(constval, "=")
fsb.WriteString("\t")
fsb.WriteString(strings.TrimSuffix(strings.TrimSpace(constval), ","))
fsb.WriteString("\t// ")
fsb.WriteString(strings.Replace(comment, "/<", strings.TrimSpace(cname), 1))
}
if len(lines) != 1 {
panic(fmt.Sprintf("%s L%d: unexpected len > 1 last lines %s", name, ln, strings.Join(lines, "\n")))
}
if !strings.HasPrefix(lines[0], "}") {
panic(fmt.Sprintf("%s L%d: unexpected last line %s", name, ln, lines[0]))
}
sname := strings.TrimSuffix(strings.TrimSpace(lines[0][1:]), ";")
val := us2camel(strings.TrimSuffix(sname, "_t"))
redirect := checkSymbolName(ln, name, sname, val, sb, f, func() *symbol {
return newSymbolConst(sname, val, symbolSubTypeEnum)
})
replaces := ""
if !redirect {
f.WriteString("type ")
f.WriteString(val)
f.WriteString(" uint32\nconst (")
replaces = " " + val + " ="
} else {
_, _ = f.Seek(-1, io.SeekCurrent)
f.WriteString("const (")
replaces = " " + val + "s ="
}
vars := strings.ReplaceAll(fsb.String(), " =", replaces)
if strings.Contains(vars, "(") {
vars = symtab.apply(vars)
}
f.WriteString(vars)
f.WriteString("\n)\n\n")
return ln
// tricky: fallthrough union to the single line though it is not
}
}
// single-line typedef, empty struct or type alias, replace with "type" statement
typs := trimEmptyStringArray(strings.Split(s[8:], " "))
if len(typs) == 0 {
panic(fmt.Sprintf("%s L%d: unexpected single typdef line %s", name, ln, firstln))
}
if strings.TrimSpace(typs[0]) == "struct" {
if len(typs) != 3 || !strings.Contains(typs[1], "handle_t") ||
!strings.Contains(typs[2], "*") {
if symtab.contains(strings.TrimSuffix(typs[2], ";")) {
fmt.Printf("[warn] %s L%d: skip duplicated single typdef %s\n", name, ln, strings.Join(typs, "_____"))
} else {
fmt.Printf("[warn] %s L%d: skip future expected single typdef %s\n", name, ln, strings.Join(typs, "_____"))
}
return ln
}
typs = typs[1:]
typs[0] = "uintptr"
typs[1] = strings.TrimPrefix(strings.TrimSpace(typs[1]), "*")
} else if strings.TrimSpace(typs[0]) == "union" {
origtyp := strings.TrimSpace(strings.TrimSuffix(strings.TrimSpace(typs[len(typs)-1]), ";"))
sz, ok := unionSizes[origtyp]
if !ok {
panic(fmt.Sprintf("%s L%d: unknown union size of %s", name, ln, origtyp))
}
typs = []string{"[" + strconv.Itoa(sz) + "]byte", origtyp}
}
if len(typs) != 2 {
panic(fmt.Sprintf("%s L%d: unexpected typdef line %s", name, ln, firstln))
}
sname := strings.TrimSpace(strings.TrimSuffix(strings.TrimSpace(typs[1]), ";"))
val := us2camel(strings.TrimSuffix(sname, "_t"))
origtyp := strings.TrimSuffix(symtab.apply(strings.TrimSpace(typs[0])), "_t")
checkSymbolName(ln, name, sname, val, sb, f, func() *symbol {
return newSymbolConst(sname, val, symbolSubTypeEmptyStruct)
})
f.WriteString("type ")
f.WriteString(val)
f.WriteString(" ")
f.WriteString(origtyp)
f.WriteString("\n\n")
return ln
}
func scanFunc(
name string, scan *bufio.Scanner, f *os.File,
ln int, firstln string, sb *strings.Builder,
) int {
//TODO: register func
rettyp := strings.TrimSpace(firstln[13 : len(firstln)-11])
rettyp = strings.TrimSuffix(symtab.apply(strings.TrimSpace(rettyp)), "_t")
fnname, isfin := scanln(name, scan, &ln)
if isfin {
panic(fmt.Sprintf("%s L%d: unexpected early end func name line %s", name, ln, fnname))
}
if !strings.HasSuffix(fnname, "(") {
panic(fmt.Sprintf("%s L%d: unexpected malformed func name line %s", name, ln, fnname))
}
origfnname := strings.TrimSpace(fnname[:len(fnname)-1])
fnname = origfnname
rf := []rune(fnname)
rf[0] = unicode.ToUpper(rf[0])
fnname = string(rf)
if sb.Len() == 0 {
panic(fmt.Sprintf("%s L%d: unexpected non-comment for func %s", name, ln, fnname))
}
brief := " " + fnname
f.WriteString(strings.Replace(sb.String(), "/ @brief", brief, 1))
sb.Reset()
f.WriteString("func ")
f.WriteString(fnname)
f.WriteString("(")
argsb := strings.Builder{}
for {
argln, isfin := scanln(name, scan, &ln)
if isfin {
break
}
argln = strings.TrimSpace(argln)
if strings.HasPrefix(argln, "///< ") {
f.WriteString(argln[4:])
continue
}
if argln == "void" {
continue
}
argtypnam, argcomment, ok := strings.Cut(argln, "//")
if !ok {
panic(fmt.Sprintf("%s L%d: unexpected non-comment func arg line %s", name, ln, argln))
}
argtypnam = strings.TrimSpace(strings.TrimSuffix(strings.TrimSpace(argtypnam), ","))
argcomment = strings.TrimSpace(argcomment)
i := strings.LastIndex(argtypnam, " ")
if i < 0 {
panic(fmt.Sprintf("%s L%d: unexpected short func arg line %s", name, ln, argln))
}
argnam := strings.TrimSpace(argtypnam[i+1:])
if argnam == "type" { // go keywords
argnam = "typ"
}
argsb.WriteString(", uintptr(")
argtyp := strings.TrimSpace(strings.ReplaceAll(argtypnam[:i], "const ", ""))
isp := strings.HasSuffix(argtyp, "*") // is pointer
pmark := "*"
if strings.HasSuffix(argtyp, "**") { // is pointer's pointer
pmark = "**"
}
convtyp, ok := typemap[argtyp]
if ok {
argtyp = convtyp
}
if isp {
if !ok {
argtyp = pmark + strings.TrimSpace(argtyp[:len(argtyp)-len(pmark)])
}
argsb.WriteString("unsafe.Pointer(")
} else {
sym, ok := symtab[argtyp]
if ok && sym.sstype == symbolSubTypeLargeStruct &&
!strings.HasPrefix(argnam, "p") {
isp = true
argtyp = pmark + argtyp
argcomment += " (gozel hack: converted to a hidden pointer from a struct value)"
argsb.WriteString("unsafe.Pointer(")
}
}
argsb.WriteString(argnam)
argsb.WriteString(")")
if isp {
argsb.WriteString(")")
}
f.WriteString("\n\t")
f.WriteString(argnam)
f.WriteString(" ")
f.WriteString(strings.TrimSuffix(symtab.apply(argtyp), "_t"))
f.WriteString(",")
f.WriteString("\t// ")
f.WriteString(strings.Replace(argcomment, "/<", argnam, 1))
}
f.WriteString("\n) (")
f.WriteString(rettyp)
f.WriteString(", error) {\n\treturn zecall.Call[")
f.WriteString(rettyp)
f.WriteString("](\"")
f.WriteString(origfnname)
f.WriteString("\"")
f.WriteString(argsb.String())
f.WriteString(")\n}\n\n")
addAPI(origfnname)
return ln
}