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| author | Eelco Dolstra <e.dolstra@tudelft.nl> | 2010-04-14T14·42+0000 |
|---|---|---|
| committer | Eelco Dolstra <e.dolstra@tudelft.nl> | 2010-04-14T14·42+0000 |
| commit | 9985230c00226826949473c3862c0c3afea74aaf (patch) | |
| tree | d221b96649f2a134cce366efdfc5685145567aa2 /src/libexpr/primops.cc | |
| parent | 816dd3f0612111718c338842283c1ee6577b9f0a (diff) | |
* After parsing, compute level/displacement pairs for each variable
use site, allowing environments to be stores as vectors of values rather than maps. This should speed up evaluation and reduce the number of allocations.
Diffstat (limited to 'src/libexpr/primops.cc')
| -rw-r--r-- | src/libexpr/primops.cc | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc index 257dcd2e9b79..83af7ada9315 100644 --- a/src/libexpr/primops.cc +++ b/src/libexpr/primops.cc @@ -999,9 +999,11 @@ void EvalState::createBaseEnv() { baseEnv.up = 0; +#if 0 Value & builtins = baseEnv.bindings[symbols.create("builtins")]; builtins.type = tAttrs; builtins.attrs = new Bindings; +#endif /* Add global constants such as `true' to the base environment. */ Value v; @@ -1023,9 +1025,11 @@ void EvalState::createBaseEnv() /* Add a wrapper around the derivation primop that computes the `drvPath' and `outPath' attributes lazily. */ +#if 0 string s = "attrs: let res = derivationStrict attrs; in attrs // { drvPath = res.drvPath; outPath = res.outPath; type = \"derivation\"; }"; mkThunk(v, baseEnv, parseExprFromString(*this, s, "/")); addConstant("derivation", v); +#endif // Miscellaneous addPrimOp("import", 1, prim_import); |