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Proactively compile lambdas when the type of the closure is known #60259

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Proactively compile lambdas when the type of the closure is known #60259

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8 changes: 8 additions & 0 deletions Compiler/src/typeinfer.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -1642,6 +1642,14 @@ function collectinvokes!(workqueue::CompilationQueue, ci::CodeInfo, sptypes::Vec
push!(argtypes, sp_type_rewrap(at[i], linfo, #= isreturn =# false))
end
atype = argtypes_to_type(argtypes)
elseif isexpr(stmt, :new)
# When creating a struct of Function type, check to see if we should
# proactively compile the lambda
t = argextype(stmt.args[1], ci, sptypes)
t isa Const || continue
t.val::DataType
t.val <: Function || continue
atype = Tuple{t.val, Vararg}
else
# TODO: handle other StmtInfo like OpaqueClosure?
continue
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