Function generateSourceCodeInfoForMessage

sourceinfo/source_code_info.go:309–397

(opts OptionIndex, sci *sourceCodeInfo, n ast.MessageDeclNode, fieldPath []int32, path []int32)

}

func generateSourceCodeInfoForMessage(opts OptionIndex, sci *sourceCodeInfo, n ast.MessageDeclNode, fieldPath []int32, path []int32) {
	var openBrace ast.Node

	var decls []ast.MessageElement
	switch n := n.(type) {
	case *ast.MessageNode:
		openBrace = n.OpenBrace
		decls = n.Decls
	case *ast.SyntheticGroupMessageNode:
		openBrace = n.OpenBrace
		decls = n.Decls
	case *ast.SyntheticMapEntryNode:
		sci.newLoc(n, path)
		// map entry so nothing else to do
		return
	}
	sci.newBlockLocWithComments(n, openBrace, path)

	sci.newLoc(n.MessageName(), append(path, internal.MessageNameTag))
	// matching protoc, which emits the corresponding field type name (for group fields)
	// right after the source location for the group message name
	if fieldPath != nil {
		sci.newLoc(n.MessageName(), append(fieldPath, internal.FieldTypeNameTag))
	}

	var optIndex, fieldIndex, oneofIndex, extendIndex, nestedMsgIndex int32
	var nestedEnumIndex, extRangeIndex, reservedRangeIndex, reservedNameIndex int32
	for _, child := range decls {
		switch child := child.(type) {
		case *ast.OptionNode:
			generateSourceCodeInfoForOption(opts, sci, child, false, &optIndex, append(path, internal.MessageOptionsTag))
		case *ast.FieldNode:
			generateSourceCodeInfoForField(opts, sci, child, append(path, internal.MessageFieldsTag, fieldIndex))
			fieldIndex++
		case *ast.GroupNode:
			fldPath := append(path, internal.MessageFieldsTag, fieldIndex) //nolint:gocritic // intentionally creating new slice var
			generateSourceCodeInfoForField(opts, sci, child, fldPath)
			fieldIndex++
			// we clone the path here so that append can't mutate fldPath, since they may share storage
			msgPath := append(internal.ClonePath(path), internal.MessageNestedMessagesTag, nestedMsgIndex)
			generateSourceCodeInfoForMessage(opts, sci, child.AsMessage(), fldPath, msgPath)
			nestedMsgIndex++
		case *ast.MapFieldNode:
			generateSourceCodeInfoForField(opts, sci, child, append(path, internal.MessageFieldsTag, fieldIndex))
			fieldIndex++
			nestedMsgIndex++
		case *ast.OneofNode:
			fldsPath := append(path, internal.MessageFieldsTag) //nolint:gocritic // intentionally creating new slice var
			// we clone the path here and below so that append ops can't mutate
			// fldPath or msgsPath, since they may otherwise share storage
			msgsPath := append(internal.ClonePath(path), internal.MessageNestedMessagesTag)
			ooPath := append(internal.ClonePath(path), internal.MessageOneofsTag, oneofIndex)
			generateSourceCodeInfoForOneof(opts, sci, child, &fieldIndex, &nestedMsgIndex, fldsPath, msgsPath, ooPath)
			oneofIndex++
		case *ast.MessageNode:
			generateSourceCodeInfoForMessage(opts, sci, child, nil, append(path, internal.MessageNestedMessagesTag, nestedMsgIndex))
			nestedMsgIndex++
		case *ast.EnumNode: