Transforms level 1 splices into holes. To do so it transforms the contents of the splice into
a lambda that receives all cross-quote references.
Cross-quote reference is a reference to a definition that is not defined in the current quote.
Those references appear in quotes that are nested in a splice.
After this phase we have the invariant where all splices have the following shape
where <spliceContent> does not contain any free references to quoted definitions and <captures>*
contains the quotes with references to all cross-quote references. There are some special rules
for references in the LHS of assignments and cross-quote method references.
In the following code example x1 and x2 are cross-quote references.
'{ ...
val x1: T1 = ???
val x2: T2 = ???
${ (q: Quotes) ?=> f('{ g(x1, x2) }) }: T3
}
This phase identifies cross-quote references such as x1 and replaces it with an ${x1$}.
All cross-quote arguments are directly applied in the lambda.
'{ ...
val x1: T1 = ???
val x2: T2 = ???
{{{
0 | T3 | x1, x2 |
(x1$: Expr[T1], x2$: Expr[T2]) => // body of this lambda does not contain references to x1 or x2
(q: Quotes) ?=> f('{ g(${x1$}, ${x2$}) })
}}}
}
and then performs the same transformation on '{ g(${x1$}, ${x2$}) }.
The sequence position of this phase in the given context where 0
is reserved for NoPhase and the first real phase is at position 1.
-1 if the phase is not installed in the context.
The sequence position of this phase in the given context where 0
is reserved for NoPhase and the first real phase is at position 1.
-1 if the phase is not installed in the context.
Is this phase the standard typerphase? True for TyperPhase, but
not for other first phases (such as FromTasty or Parser). The predicate
is tested in some places that perform checks and corrections. It's
different from ctx.isAfterTyper (and cheaper to test).
Is this phase the standard typerphase? True for TyperPhase, but
not for other first phases (such as FromTasty or Parser). The predicate
is tested in some places that perform checks and corrections. It's
different from ctx.isAfterTyper (and cheaper to test).
The phase in which the transformation should be run.
By default this is the phase given by the this macro transformer,
but it could be overridden to be the phase following that one.
The phase in which the transformation should be run.
By default this is the phase given by the this macro transformer,
but it could be overridden to be the phase following that one.
