llcppsigfetch:collect func param name

chore/_xtool/llcppsigfetch/parse/cvt.go

@@ -142,14 +142,9 @@ func (ct *Converter) ProcessType(t clang.Type) ast.Expr {
 	case clang.TypePointer:
 		expr = &ast.PointerType{X: ct.ProcessType(t.PointeeType())}
 	case clang.TypeFunctionProto:
+		// function type will only collect return type, params will be collected in ProcessFunc
 		ret := ct.ProcessType(t.ResultType())
-		params := &ast.FieldList{}
-		for i := 0; i < int(t.NumArgTypes()); i++ {
-			argType := ct.ProcessType(t.ArgType(c.Uint(i)))
-			params.List = append(params.List, &ast.Field{Type: argType})
-			// todo(zzy):field name
-		}
-		expr = &ast.FuncType{Params: params, Ret: ret}
+		expr = &ast.FuncType{Ret: ret}
 	case clang.TypeTypedef:
 		expr = ct.ProcessType(t.CanonicalType())
 	case clang.TypeConstantArray, clang.TypeVariableArray, clang.TypeIncompleteArray, clang.TypeDependentSizedArray:
@@ -164,11 +159,16 @@ func (ct *Converter) ProcessType(t clang.Type) ast.Expr {
 func (ct *Converter) ProcessFunc(cursor clang.Cursor) {
 	name := cursor.String()
 	defer name.Dispose()
+
+	// function type will only collect return type
+	// ProcessType can't get the field names,will collect in follows
 	funcType, ok := ct.ProcessType(cursor.Type()).(*ast.FuncType)
 	if !ok {
 		fmt.Println("failed to process function type")
 		return
 	}
+	params := ct.ProcessFuncParams(cursor)
+	funcType.Params = params
 	fn := &ast.FuncDecl{
 		Name: &ast.Ident{Name: c.GoString(name.CStr())},
 		Type: funcType,
@@ -178,6 +178,42 @@ func (ct *Converter) ProcessFunc(cursor clang.Cursor) {
 	// ct.declMap[cursor] = fn
 }
 
+type visitParamContext struct {
+	params    *ast.FieldList
+	converter *Converter
+}
+
+// visit top decls (struct,class,function,enum & marco,include)
+func visitParamDecl(cursor, parent clang.Cursor, clientData unsafe.Pointer) clang.ChildVisitResult {
+	ctx := (*visitParamContext)(clientData)
+	if cursor.Kind == clang.CursorParmDecl {
+		paramName := cursor.String()
+		defer paramName.Dispose()
+		argType := ctx.converter.ProcessType(cursor.Type())
+
+		// In C language, parameter lists do not have similar parameter grouping in Go.
+		// func foo(a, b int)
+		ctx.params.List = append(ctx.params.List,
+			&ast.Field{
+				Type: argType,
+				Names: []*ast.Ident{
+					{Name: c.GoString(paramName.CStr())},
+				},
+			})
+	}
+	return clang.ChildVisit_Continue
+}
+
+func (ct *Converter) ProcessFuncParams(cursor clang.Cursor) *ast.FieldList {
+	params := &ast.FieldList{List: []*ast.Field{}}
+	ctx := &visitParamContext{
+		params:    params,
+		converter: ct,
+	}
+	clang.VisitChildren(cursor, visitParamDecl, c.Pointer(ctx))
+	return params
+}
+
 func (ct *Converter) ProcessClass(cursor clang.Cursor) {
 	println("todo: Process class")
 }

chore/_xtool/llcppsigfetch/parse/cvt_test/decl_test/decl.go

@@ -10,17 +10,30 @@ func main() {
 }
 
 func TestFuncDecl() {
-	content := `int foo(int a, int b);`
-	converter, err := parse.NewConverter(content, true)
-	if err != nil {
-		panic(err)
+	testCases := []string{
+		`void foo();`,
+		`void foo(int a);`,
+		`float foo(int a,double b);`,
+
+		`void foo(char* str, double x);`,
+		`float* foo(char* str, double x);`,
+		`float* foo(char*** str, double x);`,
 	}
 
-	defer converter.Dispose()
-	converter.Convert()
-	if err != nil {
-		panic(err)
+	for i, content := range testCases {
+		converter, err := parse.NewConverter(content, true)
+		if err != nil {
+			panic(err)
+		}
+
+		_, err = converter.Convert()
+		if err != nil {
+			panic(err)
+		}
+
+		json := converter.GetFilesJSON()
+		c.Printf(c.Str("Test Case %d:\n%s\n\n"), c.Int(i+1), json.Print())
+
+		converter.Dispose()
 	}
-	json := converter.GetFilesJSON()
-	c.Printf(c.Str("%s\n"), json.Print())
 }

chore/_xtool/llcppsigfetch/parse/cvt_test/decl_test/llgo.expect

@@ -1,30 +1,265 @@
 #stdout
+Test Case 1:
 {
-	"Files":	{
-		"temp.h":	{
-			"Path":	"temp.h",
-			"decls":	[{
-					"Name":	"foo",
-					"Type":	{
-						"Params":	[{
-								"Kind":	6,
-								"Flags":	0
+	"temp.h":	{
+		"Path":	"temp.h",
+		"decls":	[{
+				"Loc":	null,
+				"Doc":	null,
+				"Parent":	null,
+				"Name":	{
+					"Name":	"foo"
+				},
+				"Type":	{
+					"Params":	{
+						"List":	[]
+					},
+					"Ret":	{
+						"Kind":	0,
+						"Flags":	0
+					}
+				}
+			}],
+		"includes":	[],
+		"macros":	[]
+	}
+}
+
+Test Case 2:
+{
+	"temp.h":	{
+		"Path":	"temp.h",
+		"decls":	[{
+				"Loc":	null,
+				"Doc":	null,
+				"Parent":	null,
+				"Name":	{
+					"Name":	"foo"
+				},
+				"Type":	{
+					"Params":	{
+						"List":	[{
+								"Type":	{
+									"Kind":	6,
+									"Flags":	0
+								},
+								"Doc":	null,
+								"Comment":	null,
+								"Names":	[{
+										"Name":	"a"
+									}]
+							}]
+					},
+					"Ret":	{
+						"Kind":	0,
+						"Flags":	0
+					}
+				}
+			}],
+		"includes":	[],
+		"macros":	[]
+	}
+}
+
+Test Case 3:
+{
+	"temp.h":	{
+		"Path":	"temp.h",
+		"decls":	[{
+				"Loc":	null,
+				"Doc":	null,
+				"Parent":	null,
+				"Name":	{
+					"Name":	"foo"
+				},
+				"Type":	{
+					"Params":	{
+						"List":	[{
+								"Type":	{
+									"Kind":	6,
+									"Flags":	0
+								},
+								"Doc":	null,
+								"Comment":	null,
+								"Names":	[{
+										"Name":	"a"
+									}]
 							}, {
-								"Kind":	6,
-								"Flags":	0
-							}],
-						"Ret":	{
-							"Kind":	6,
+								"Type":	{
+									"Kind":	8,
+									"Flags":	16
+								},
+								"Doc":	null,
+								"Comment":	null,
+								"Names":	[{
+										"Name":	"b"
+									}]
+							}]
+					},
+					"Ret":	{
+						"Kind":	8,
+						"Flags":	0
+					}
+				}
+			}],
+		"includes":	[],
+		"macros":	[]
+	}
+}
+
+Test Case 4:
+{
+	"temp.h":	{
+		"Path":	"temp.h",
+		"decls":	[{
+				"Loc":	null,
+				"Doc":	null,
+				"Parent":	null,
+				"Name":	{
+					"Name":	"foo"
+				},
+				"Type":	{
+					"Params":	{
+						"List":	[{
+								"Type":	{
+									"X":	{
+										"Kind":	2,
+										"Flags":	1
+									}
+								},
+								"Doc":	null,
+								"Comment":	null,
+								"Names":	[{
+										"Name":	"str"
+									}]
+							}, {
+								"Type":	{
+									"Kind":	8,
+									"Flags":	16
+								},
+								"Doc":	null,
+								"Comment":	null,
+								"Names":	[{
+										"Name":	"x"
+									}]
+							}]
+					},
+					"Ret":	{
+						"Kind":	0,
+						"Flags":	0
+					}
+				}
+			}],
+		"includes":	[],
+		"macros":	[]
+	}
+}
+
+Test Case 5:
+{
+	"temp.h":	{
+		"Path":	"temp.h",
+		"decls":	[{
+				"Loc":	null,
+				"Doc":	null,
+				"Parent":	null,
+				"Name":	{
+					"Name":	"foo"
+				},
+				"Type":	{
+					"Params":	{
+						"List":	[{
+								"Type":	{
+									"X":	{
+										"Kind":	2,
+										"Flags":	1
+									}
+								},
+								"Doc":	null,
+								"Comment":	null,
+								"Names":	[{
+										"Name":	"str"
+									}]
+							}, {
+								"Type":	{
+									"Kind":	8,
+									"Flags":	16
+								},
+								"Doc":	null,
+								"Comment":	null,
+								"Names":	[{
+										"Name":	"x"
+									}]
+							}]
+					},
+					"Ret":	{
+						"X":	{
+							"Kind":	8,
 							"Flags":	0
 						}
 					}
-				}],
-			"includes":	[],
-			"macros":	[]
-		}
+				}
+			}],
+		"includes":	[],
+		"macros":	[]
 	}
 }
 
+Test Case 6:
+{
+	"temp.h":	{
+		"Path":	"temp.h",
+		"decls":	[{
+				"Loc":	null,
+				"Doc":	null,
+				"Parent":	null,
+				"Name":	{
+					"Name":	"foo"
+				},
+				"Type":	{
+					"Params":	{
+						"List":	[{
+								"Type":	{
+									"X":	{
+										"X":	{
+											"X":	{
+												"Kind":	2,
+												"Flags":	1
+											}
+										}
+									}
+								},
+								"Doc":	null,
+								"Comment":	null,
+								"Names":	[{
+										"Name":	"str"
+									}]
+							}, {
+								"Type":	{
+									"Kind":	8,
+									"Flags":	16
+								},
+								"Doc":	null,
+								"Comment":	null,
+								"Names":	[{
+										"Name":	"x"
+									}]
+							}]
+					},
+					"Ret":	{
+						"X":	{
+							"Kind":	8,
+							"Flags":	0
+						}
+					}
+				}
+			}],
+		"includes":	[],
+		"macros":	[]
+	}
+}
+
+
 #stderr
 
 #exit 0