LibWeb: Tidy up CSS::Token::to_debug_string()

The ifs below the switch no longer functioned, so let's move everything
into the switch cases. This also means we can replace the StringBuilder
usage with String::formatted().

Userland/Libraries/LibWeb/CSS/Parser/Token.cpp

@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2020-2021, the SerenityOS developers.
+ * Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -80,140 +81,62 @@ String Token::to_string() const
 
 String Token::to_debug_string() const
 {
-    StringBuilder builder;
-
     switch (m_type) {
     case Type::Invalid:
         VERIFY_NOT_REACHED();
 
     case Type::EndOfFile:
-        builder.append("__EOF__");
-        break;
+        return "__EOF__";
     case Type::Ident:
-        builder.append("Identifier: ");
-        builder.append(m_value);
-        return builder.to_string();
+        return String::formatted("Ident: {}", ident());
     case Type::Function:
-        builder.append("Function");
-        break;
+        return String::formatted("Function: {}", function());
     case Type::AtKeyword:
-        builder.append("@");
-        break;
+        return String::formatted("AtKeyword: {}", at_keyword());
     case Type::Hash:
-        builder.append("Hash: ");
-        builder.append(m_value);
-        return builder.to_string();
+        return String::formatted("Hash: {} (hash_type: {})", hash_value(), m_hash_type == HashType::Unrestricted ? "Unrestricted" : "Id");
     case Type::String:
-        builder.append("String: ");
-        builder.append(m_value);
-        return builder.to_string();
+        return String::formatted("String: {}", string());
     case Type::BadString:
-        builder.append("Invalid String");
-        break;
+        return "BadString";
     case Type::Url:
-        builder.append("Url");
-        break;
+        return String::formatted("Url: {}", url());
     case Type::BadUrl:
-        builder.append("Invalid Url");
-        break;
+        return "BadUrl";
     case Type::Delim:
-        builder.append("Delimiter: ");
-        builder.append(m_value);
-        return builder.to_string();
+        return String::formatted("Delim: {}", m_value);
     case Type::Number:
-        builder.append("Number: ");
-        builder.append(m_number_value.value());
-        builder.append(m_number_value.is_integer() ? " (int)" : " (float)");
-        return builder.to_string();
+        return String::formatted("Number: {} (number_type: {})", m_number_value.value(), m_number_value.is_integer() ? "Integer" : "Number");
     case Type::Percentage:
-        builder.append("Percentage: ");
-        builder.append(m_value);
-        builder.append('%');
-        return builder.to_string();
+        return String::formatted("Percentage: {}% (number_type: {})", percentage(), m_number_value.is_integer() ? "Integer" : "Number");
     case Type::Dimension:
-        builder.append("Dimension: ");
-        builder.append(dimension_value());
-        builder.append(dimension_unit());
-        return builder.to_string();
+        return String::formatted("Dimension: {}{} (number_type: {})", dimension_value(), dimension_unit(), m_number_value.is_integer() ? "Integer" : "Number");
     case Type::Whitespace:
-        builder.append("Whitespace");
-        break;
+        return "Whitespace";
     case Type::CDO:
-        builder.append("CDO");
-        break;
+        return "CDO";
     case Type::CDC:
-        builder.append("CDC");
-        break;
+        return "CDC";
     case Type::Colon:
-        builder.append(":");
-        break;
+        return "Colon";
     case Type::Semicolon:
-        builder.append(";");
-        break;
+        return "Semicolon";
     case Type::Comma:
-        builder.append(",");
-        break;
+        return "Comma";
     case Type::OpenSquare:
-        builder.append("[");
-        break;
+        return "OpenSquare";
     case Type::CloseSquare:
-        builder.append("]");
-        break;
+        return "CloseSquare";
     case Type::OpenParen:
-        builder.append("(");
-        break;
+        return "OpenParen";
     case Type::CloseParen:
-        builder.append(")");
-        break;
+        return "CloseParen";
     case Type::OpenCurly:
-        builder.append("{");
-        break;
+        return "OpenCurly";
     case Type::CloseCurly:
-        builder.append("}");
-        break;
-    }
-
-    if (m_value.is_empty()) {
-        return builder.to_string();
-    }
-
-    builder.append(" ");
-
-    builder.append(" { value: '");
-    builder.append(m_value);
-
-    if (m_type == Token::Type::Hash) {
-        builder.append("', hash_type: '");
-        if (m_hash_type == Token::HashType::Unrestricted) {
-            builder.append("Unrestricted");
-        } else {
-            builder.append("Id");
-        }
+        return "CloseCurly";
     }
-
-    if (m_type == Token::Type::Number) {
-        builder.append("', number_type: '");
-        if (m_number_value.is_integer()) {
-            builder.append("Integer");
-        } else {
-            builder.append("Number");
-        }
-    }
-
-    if (m_type == Token::Type::Dimension) {
-        builder.append("', number_type: '");
-        if (m_number_value.is_integer()) {
-            builder.append("Integer");
-        } else {
-            builder.append("Number");
-        }
-
-        builder.append("', unit: '");
-        builder.append(dimension_unit());
-    }
-
-    builder.append("' }");
-    return builder.to_string();
+    VERIFY_NOT_REACHED();
 }
 
 Token::Type Token::mirror_variant() const