Merge pull request #780 from luoliwoshang/llcppsymg/language

llcppsymg:parse c / c++ &  output  func proto

chore/_xtool/llcppsymg/parse/parse.go

@@ -4,17 +4,22 @@ import (
 	"errors"
 	"strconv"
 	"strings"
-	"unsafe"
 
 	"github.com/goplus/llgo/c"
 	"github.com/goplus/llgo/c/clang"
+	"github.com/goplus/llgo/chore/_xtool/llcppsymg/clangutils"
 )
 
+type SymbolInfo struct {
+	GoName    string
+	ProtoName string
+}
+
 type Context struct {
 	namespaceName string
 	className     string
 	prefixes      []string
-	symbolMap     map[string]string
+	symbolMap     map[string]*SymbolInfo
 	currentFile   string
 	nameCounts    map[string]int
 }
@@ -22,7 +27,7 @@ type Context struct {
 func newContext(prefixes []string) *Context {
 	return &Context{
 		prefixes:   prefixes,
-		symbolMap:  make(map[string]string),
+		symbolMap:  make(map[string]*SymbolInfo),
 		nameCounts: make(map[string]int),
 	}
 }
@@ -48,9 +53,35 @@ func (c *Context) removePrefix(str string) string {
 	return str
 }
 
-func (c *Context) genGoName(name string) string {
-	class := c.removePrefix(c.className)
+func toTitle(s string) string {
+	if s == "" {
+		return ""
+	}
+	return strings.ToUpper(s[:1]) + strings.ToLower(s[1:])
+}
+
+func toCamel(originName string) string {
+	if originName == "" {
+		return ""
+	}
+	subs := strings.Split(string(originName), "_")
+	name := ""
+	for _, sub := range subs {
+		name += toTitle(sub)
+	}
+	return name
+}
+
+// 1. remove prefix from config
+// 2. convert to camel case
+func (c *Context) toGoName(name string) string {
 	name = c.removePrefix(name)
+	return toCamel(name)
+}
+
+func (c *Context) genGoName(name string) string {
+	class := c.toGoName(c.className)
+	name = c.toGoName(name)
 
 	var baseName string
 	if class == "" {
@@ -73,6 +104,22 @@ func (c *Context) genMethodName(class, name string) string {
 	return prefix + name
 }
 
+func (p *Context) genProtoName(cursor clang.Cursor) string {
+	displayName := cursor.DisplayName()
+	defer displayName.Dispose()
+
+	scopingParts := clangutils.BuildScopingParts(cursor.SemanticParent())
+
+	var builder strings.Builder
+	for _, part := range scopingParts {
+		builder.WriteString(part)
+		builder.WriteString("::")
+	}
+
+	builder.WriteString(c.GoString(displayName.CStr()))
+	return builder.String()
+}
+
 func (c *Context) addSuffix(name string) string {
 	c.nameCounts[name]++
 	count := c.nameCounts[name]
@@ -96,8 +143,10 @@ func collectFuncInfo(cursor clang.Cursor) {
 	defer symbol.Dispose()
 	defer cursorStr.Dispose()
 
-	goName := context.genGoName(name)
-	context.symbolMap[symbolName] = goName
+	context.symbolMap[symbolName] = &SymbolInfo{
+		GoName:    context.genGoName(name),
+		ProtoName: context.genProtoName(cursor),
+	}
 }
 
 func visit(cursor, parent clang.Cursor, clientData c.Pointer) clang.ChildVisitResult {
@@ -141,35 +190,25 @@ func visit(cursor, parent clang.Cursor, clientData c.Pointer) clang.ChildVisitRe
 	return clang.ChildVisit_Continue
 }
 
-func ParseHeaderFile(filepaths []string, prefixes []string) (map[string]string, error) {
-	index := clang.CreateIndex(0, 0)
-	args := make([]*c.Char, 3)
-	args[0] = c.Str("-x")
-	args[1] = c.Str("c++")
-	args[2] = c.Str("-std=c++11")
+func ParseHeaderFile(filepaths []string, prefixes []string, isCpp bool) (map[string]*SymbolInfo, error) {
 	context = newContext(prefixes)
-
+	index := clang.CreateIndex(0, 0)
 	for _, filename := range filepaths {
-		unit := index.ParseTranslationUnit(
-			c.AllocaCStr(filename),
-			unsafe.SliceData(args), 3,
-			nil, 0,
-			clang.TranslationUnit_None,
-		)
-
-		if unit == nil {
+		_, unit, err := clangutils.CreateTranslationUnit(&clangutils.Config{
+			File:  filename,
+			Temp:  false,
+			IsCpp: isCpp,
+			Index: index,
+		})
+		if err != nil {
 			return nil, errors.New("Unable to parse translation unit for file " + filename)
 		}
 
 		cursor := unit.Cursor()
 		context.setCurrentFile(filename)
-
 		clang.VisitChildren(cursor, visit, nil)
-
 		unit.Dispose()
 	}
-
 	index.Dispose()
-
 	return context.symbolMap, nil
 }