Ensure QueryError always has a code and use syntax as code for all parser errors

contactql/error.go

@@ -3,13 +3,11 @@ package contactql
 import (
 	"errors"
 	"fmt"
-
-	"github.com/nyaruka/goflow/utils"
 )
 
 // error codes with values included in extra
 const (
-	ErrUnexpectedToken       = "unexpected_token"       // `token` the unexpected token
+	ErrSyntax                = "syntax"
 	ErrInvalidNumber         = "invalid_number"         // `value` the value we tried to parse as a number
 	ErrInvalidDate           = "invalid_date"           // `value` the value we tried to parse as a date
 	ErrInvalidStatus         = "invalid_status"         // `value` the value we tried to parse as a contact status
@@ -66,5 +64,3 @@ func IsQueryError(err error) (bool, error) {
 	var qErr *QueryError
 	return errors.As(err, &qErr), qErr
 }
-
-var _ utils.RichError = (*QueryError)(nil)

contactql/parser.go

@@ -405,16 +405,7 @@ func (l *errorListener) Error() error {
 }
 
 func (l *errorListener) SyntaxError(recognizer antlr.Recognizer, offendingSymbol any, line, column int, msg string, e antlr.RecognitionException) {
-	var err *QueryError
-	switch typed := e.(type) {
-	case *antlr.InputMisMatchException:
-		token := typed.GetOffendingToken().GetText()
-		err = NewQueryError(ErrUnexpectedToken, msg).withExtra("token", token)
-	default:
-		err = NewQueryError("", msg)
-	}
-
-	l.errs = append(l.errs, err)
+	l.errs = append(l.errs, NewQueryError(ErrSyntax, msg))
 }
 
 func tokenizeNameValue(value string) []string {

contactql/parser_test.go

@@ -283,38 +283,38 @@ func TestParsingErrors(t *testing.T) {
 		{
 			query:    `$`,
 			errMsg:   "mismatched input '$' expecting {'(', STRING, PROPERTY, TEXT}",
-			errCode:  "unexpected_token",
-			errExtra: map[string]any{"token": "$"},
+			errCode:  "syntax",
+			errExtra: nil,
 		},
 		{
 			query:    `name = `,
 			errMsg:   "mismatched input '<EOF>' expecting {STRING, PROPERTY, TEXT}",
-			errCode:  "unexpected_token",
-			errExtra: map[string]any{"token": "<EOF>"},
+			errCode:  "syntax",
+			errExtra: nil,
 		},
 		{
 			query:    `name = "x`,
 			errMsg:   "extraneous input '\"' expecting {STRING, PROPERTY, TEXT}",
-			errCode:  "",
+			errCode:  "syntax",
 			errExtra: nil,
 		},
 		{
 			query:    `nam/e = "x"`,
 			errMsg:   "mismatched input '=' expecting <EOF>", // because .name isn't valid NAME
-			errCode:  "unexpected_token",
-			errExtra: map[string]any{"token": "="},
+			errCode:  "syntax",
+			errExtra: nil,
 		},
 		{
 			query:    `name. = "x"`,
 			errMsg:   "mismatched input '=' expecting <EOF>",
-			errCode:  "unexpected_token",
-			errExtra: map[string]any{"token": "="},
+			errCode:  "syntax",
+			errExtra: nil,
 		},
 		{
 			query:    `.name != "x"`,
 			errMsg:   "mismatched input '!=' expecting <EOF>",
-			errCode:  "unexpected_token",
-			errExtra: map[string]any{"token": "!="},
+			errCode:  "syntax",
+			errExtra: nil,
 		},
 		{
 			query:    `age = XZ`,