constantify

include/inja/node.hpp

@@ -76,7 +76,7 @@ public:
 
 class TextNode : public AstNode {
 public:
-  size_t length;
+  const size_t length;
 
   explicit TextNode(size_t pos, size_t length): AstNode(pos), length(length) { }
 
@@ -96,7 +96,7 @@ public:
 
 class LiteralNode : public ExpressionNode {
 public:
-  nlohmann::json value;
+  const nlohmann::json value;
 
   explicit LiteralNode(const nlohmann::json& value, size_t pos) : ExpressionNode(pos), value(value) { }
 
@@ -107,8 +107,8 @@ public:
 
 class JsonNode : public ExpressionNode {
 public:
-  std::string name;
-  json::json_pointer ptr;
+  const std::string name;
+  const json::json_pointer ptr;
 
   static std::string convert_dot_to_json_ptr(nonstd::string_view ptr_name) {
     std::string result;
@@ -261,7 +261,7 @@ public:
 
 class ForArrayStatementNode : public ForStatementNode {
 public:
-  std::string value;
+  const std::string value;
 
   explicit ForArrayStatementNode(const std::string& value, BlockNode *const parent, size_t pos) : ForStatementNode(parent, pos), value(value) { }
 
@@ -272,8 +272,8 @@ public:
 
 class ForObjectStatementNode : public ForStatementNode {
 public:
-  std::string key;
-  std::string value;
+  const std::string key;
+  const std::string value;
 
   explicit ForObjectStatementNode(const std::string& key, const std::string& value, BlockNode *const parent, size_t pos) : ForStatementNode(parent, pos), key(key), value(value) { }
 
@@ -289,7 +289,7 @@ public:
   BlockNode false_statement;
   BlockNode *const parent;
 
-  bool is_nested;
+  const bool is_nested;
   bool has_false_statement {false};
 
   explicit IfStatementNode(BlockNode *const parent, size_t pos) : StatementNode(pos), parent(parent), is_nested(false) { }
@@ -302,7 +302,7 @@ public:
 
 class IncludeStatementNode : public StatementNode {
 public:
-  std::string file;
+  const std::string file;
 
   explicit IncludeStatementNode(const std::string& file, size_t pos) : StatementNode(pos), file(file) { }
 
@@ -313,7 +313,7 @@ public:
 
 class SetStatementNode : public StatementNode {
 public:
-  std::string key;
+  const std::string key;
   ExpressionListNode expression;
 
   explicit SetStatementNode(const std::string& key, size_t pos) : StatementNode(pos), key(key) { }