Lex and parse array expression

src/Lexer/Lexer.cpp

@@ -126,6 +126,14 @@ shared_ptr<Token> Lexer::nextToken() {
     if (token != nullptr)
         return token;
 
+    token = match(TokenKind::LEFT_SQUARE_BRACKET, "[", false);
+    if (token != nullptr)
+        return token;
+
+    token = match(TokenKind::RIGHT_SQUARE_BRACKET, "]", false);
+    if (token != nullptr)
+        return token;
+
     token = match(TokenKind::COMMA, ",", false);
     if (token != nullptr)
         return token;
@@ -472,6 +480,8 @@ bool Lexer::isSeparator(int index) {
         case '>':
         case '(':
         case ')':
+        case '[':
+        case ']':
         case ',':
         case ':':
         case ';':

src/Lexer/Token.h

@@ -21,6 +21,8 @@ enum class TokenKind {
     
     LEFT_PAREN,
     RIGHT_PAREN,
+    LEFT_SQUARE_BRACKET,
+    RIGHT_SQUARE_BRACKET,
     COMMA,
     COLON,
     SEMICOLON,