diff options
Diffstat (limited to 'src/libexpr/nixexpr.hh')
| -rw-r--r-- | src/libexpr/nixexpr.hh | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/libexpr/nixexpr.hh b/src/libexpr/nixexpr.hh index e5755bb99..64a9ddeec 100644 --- a/src/libexpr/nixexpr.hh +++ b/src/libexpr/nixexpr.hh @@ -243,6 +243,7 @@ struct Formal Expr * def; }; +/** Attribute set destructuring in arguments of a lambda, if present */ struct Formals { typedef std::vector<Formal> Formals_; @@ -270,9 +271,18 @@ struct Formals struct ExprLambda : Expr { + /** Where the lambda is defined in Nix code. May be falsey if the + * position is not known. */ PosIdx pos; + /** Name of the lambda. This is set if the lambda is defined in a + * let-expression or an attribute set, such that there is a name. + * Lambdas may have a falsey symbol as the name if they are anonymous */ Symbol name; + /** The argument name of this particular lambda. Is a falsey symbol if there + * is no such argument. */ Symbol arg; + /** Formals are present when the lambda destructures an attr set as + * argument, with or without ellipsis */ Formals * formals; Expr * body; ExprLambda(PosIdx pos, Symbol arg, Formals * formals, Expr * body) |