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introduce lookup paths as a distinct language construct

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so far they did not really have a name, and were at best referred to as
"angle bracket syntax".
This commit is contained in:
Valentin Gagarin 2023-10-07 03:10:20 +02:00
parent 61720d0035
commit f00a5eb11b
4 changed files with 34 additions and 9 deletions
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6
src/libexpr/primops.cc
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@ -1723,7 +1723,7 @@ static RegisterPrimOp primop_findFile(PrimOp {
If the suffix is found inside that directory, then the entry is a match;
the combined absolute path of the directory (now downloaded if need be) and the suffix is returned.
The syntax
[Lookup path](@docroot@/language/constructs/lookup-path.md) expressions can be [desugared](https://en.wikipedia.org/wiki/Syntactic_sugar) using this and [`builtins.nixPath`](@docroot@/language/builtin-constants.md#builtins-nixPath):
```nix
<nixpkgs>
@ -4389,9 +4389,9 @@ void EvalState::createBaseEnv()
addConstant("__nixPath", v, {
.type = nList,
.doc = R"(
The search path used to resolve angle bracket path lookups.
List of search path entries used to resolve [lookup paths](@docroot@/language/constructs/lookup-path.md).
Angle bracket expressions can be
Lookup path expressions can be
[desugared](https://en.wikipedia.org/wiki/Syntactic_sugar)
using this and
[`builtins.findFile`](./builtins.html#builtins-findFile):