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-rw-r--r--src/libexpr/nixexpr.cc12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/libexpr/nixexpr.cc b/src/libexpr/nixexpr.cc
index 28049bb0d..2e26d5081 100644
--- a/src/libexpr/nixexpr.cc
+++ b/src/libexpr/nixexpr.cc
@@ -336,4 +336,16 @@ string ExprLambda::showNamePos()
}
+
+/* Symbol table. */
+
+size_t SymbolTable::totalSize() const
+{
+ size_t n = 0;
+ foreach (Symbols::const_iterator, i, symbols)
+ n += i->size();
+ return n;
+}
+
+
}