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Merge "Document ExprLambda fields" into main

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jade 2024-03-30 03:22:53 +00:00 committed by Gerrit Code Review
commit a4f5bb951d
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10
src/libexpr/nixexpr.hh
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@ -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)