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* In environments, store pointers to values rather than values. This

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improves GC effectiveness a bit more (because a live value doesn't
  keep other values in the environment plus the parent environments
  alive), and removes the need for copy nodes.
This commit is contained in:
Eelco Dolstra 2010-10-22 15:51:52 +00:00
parent cf7e645a48
commit 4dee289550
2 changed files with 25 additions and 35 deletions
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10
src/libexpr/eval.hh
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@ -38,7 +38,6 @@ typedef enum {
tThunk,
tApp,
tLambda,
tCopy,
tBlackhole,
tPrimOp,
tPrimOpApp,
@ -116,7 +115,7 @@ struct Env
{
Env * up;
unsigned int prevWith; // nr of levels up to next `with' environment
Value values[0];
Value * values[0];
};
@ -150,13 +149,6 @@ static inline void mkThunk(Value & v, Env & env, Expr * expr)
}
static inline void mkCopy(Value & v, Value & src)
{
v.type = tCopy;
v.val = &src;
}
static inline void mkApp(Value & v, Value & left, Value & right)
{
v.type = tApp;