From ff73190df5cd750221bcc4c090d37957578c5409 Mon Sep 17 00:00:00 2001
From: Tom Wright <contact@tomwright.me>
Date: Tue, 1 Oct 2024 02:04:48 +0100
Subject: [PATCH] Add string concat test

---
 execution/execute_test.go      | 5 +++++
 selector/parser/parse_group.go | 5 +++++
 selector/parser/parser.go      | 2 +-
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/execution/execute_test.go b/execution/execute_test.go
index 08bef00..efbeea6 100644
--- a/execution/execute_test.go
+++ b/execution/execute_test.go
@@ -196,6 +196,11 @@ func TestExecuteSelector_HappyPath(t *testing.T) {
 			s:   `name.first`,
 			out: model.NewStringValue("Tom"),
 		}))
+		t.Run("concat", runTest(testCase{
+			in:  inputMap(),
+			s:   `title + " " + (name.first) + " " + (name.last)`,
+			out: model.NewStringValue("Mr Tom Wright"),
+		}))
 	})
 
 	t.Run("object", func(t *testing.T) {
diff --git a/selector/parser/parse_group.go b/selector/parser/parse_group.go
index 354f959..5136e17 100644
--- a/selector/parser/parse_group.go
+++ b/selector/parser/parse_group.go
@@ -21,6 +21,11 @@ func parseGroup(p *Parser) (ast.Expr, error) {
 			break
 		}
 
+		if p.current().IsKind(lexer.Dot) {
+			p.advance()
+			continue
+		}
+
 		expr, err := p.parseExpression(bpDefault)
 		if err != nil {
 			return nil, err
diff --git a/selector/parser/parser.go b/selector/parser/parser.go
index 48706af..a50784c 100644
--- a/selector/parser/parser.go
+++ b/selector/parser/parser.go
@@ -53,7 +53,7 @@ func (p *Parser) endOfExpressionTokens() []lexer.TokenKind {
 	case scopeObject:
 		return []lexer.TokenKind{lexer.CloseCurly, lexer.Equals, lexer.Number, lexer.Symbol, lexer.Comma}
 	case scopeGroup:
-		return []lexer.TokenKind{lexer.CloseParen}
+		return append([]lexer.TokenKind{lexer.CloseParen, lexer.Dot}, leftDenotationTokens...)
 	default:
 		return nil
 	}