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authorEelco Dolstra <edolstra@gmail.com>2018-06-11T14·06+0200
committerEelco Dolstra <edolstra@gmail.com>2018-06-12T15·49+0200
commit24c68069948681366ff2351dd7400af6e69006d9 (patch)
treeb82b0ab73f4962977cb6a8dc478e36d5ac75c4ef /src/libexpr/eval.hh
parent6ad0a2f749b4db6b24e8b86625883b0b43ad7ba1 (diff)
Cache parse trees
This prevents EvalState::resetFileCache() from parsing everything all
over again.
Diffstat (limited to 'src/libexpr/eval.hh')
-rw-r--r--src/libexpr/eval.hh8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/libexpr/eval.hh b/src/libexpr/eval.hh
index 146f21255034..d0f298e168e9 100644
--- a/src/libexpr/eval.hh
+++ b/src/libexpr/eval.hh
@@ -90,6 +90,14 @@ public:
 private:
     SrcToStore srcToStore;
 
+    /* A cache from path names to parse trees. */
+#if HAVE_BOEHMGC
+    typedef std::map<Path, Expr *, std::less<Path>, traceable_allocator<std::pair<const Path, Expr *> > > FileParseCache;
+#else
+    typedef std::map<Path, Expr *> FileParseCache;
+#endif
+    FileParseCache fileParseCache;
+
     /* A cache from path names to values. */
 #if HAVE_BOEHMGC
     typedef std::map<Path, Value, std::less<Path>, traceable_allocator<std::pair<const Path, Value> > > FileEvalCache;