Added highlight of calls within condition statements of if/else blocks

src/common/clang_utils.cc

@@ -164,6 +164,22 @@ std::string get_source_text(
     return get_source_text_raw(printable_range, sm);
 }
 
+bool is_subexpr_of(const clang::Stmt *parent_stmt, const clang::Stmt *sub_stmt)
+{
+    if (parent_stmt == nullptr || sub_stmt == nullptr)
+        return false;
+
+    if (parent_stmt == sub_stmt)
+        return true;
+
+    for (const auto *e : parent_stmt->children()) {
+        if (is_subexpr_of(e, sub_stmt))
+            return true;
+    }
+
+    return false;
+}
+
 template <> id_t to_id(const std::string &full_name)
 {
     return std::hash<std::string>{}(full_name) >> 3;

src/common/clang_utils.h

@@ -68,6 +68,8 @@ std::string get_source_text_raw(
 std::string get_source_text(
     clang::SourceRange range, const clang::SourceManager &sm);
 
+bool is_subexpr_of(const clang::Stmt *parent_stmt, const clang::Stmt *sub_stmt);
+
 template <typename T> id_t to_id(const T &declaration);
 
 template <> id_t to_id(const std::string &full_name);

src/common/model/enums.h

@@ -39,6 +39,7 @@ enum class relationship_t {
     kDependency
 };
 
+/// Types of sequence diagram activity elements
 enum class message_t {
     kCall,
     kReturn,
@@ -55,6 +56,13 @@ enum class message_t {
     kNone
 };
 
+/// The scope of the call expression represented in the sequence diagram
+enum class message_scope_t {
+    kNormal,   // This is a regular call expression
+    kCondition // This is a call expression from within a control condition
+               // e.g if(a->is_valid()) { ... }
+};
+
 std::string to_string(relationship_t r);
 
 std::string to_string(access_t r);