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//===--- DropFirst.swift --------------------------------------*- swift -*-===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2021 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
% # Ignore the following warning. This _is_ the correct file to edit.
////////////////////////////////////////////////////////////////////////////////
// WARNING: This file is manually generated from .gyb template and should not
// be directly modified. Instead, make changes to DropFirst.swift.gyb and run
// scripts/generate_harness/generate_harness.py to regenerate this file.
////////////////////////////////////////////////////////////////////////////////
import TestsUtils
let sequenceCount = 4096
let dropCount = 1024
let suffixCount = sequenceCount - dropCount
let sumCount = suffixCount * (2 * sequenceCount - suffixCount - 1) / 2
let array: [Int] = Array(0..<sequenceCount)
%{
# Name and Expression pairs for Sequences to test.
Sequences = [
('CountableRange', '0..<sequenceCount'),
('Sequence',
'sequence(first: 0) { $0 < sequenceCount - 1 ? $0 &+ 1 : nil }'),
('AnySequence',
'AnySequence(sequence(first: 0) { $0 < sequenceCount - 1 ? $0 &+ 1 : nil })'),
('AnySeqCntRange', 'AnySequence(0..<sequenceCount)'),
('AnySeqCRangeIter', 'AnySequence((0..<sequenceCount).makeIterator())'),
('AnyCollection', 'AnyCollection(0..<sequenceCount)'),
('Array', 'array'),
]
def lazy (NameExpr) : return (NameExpr[0] + 'Lazy', '(' + NameExpr[1] + ').lazy')
Sequences = Sequences + list(map(lazy, Sequences))
}%
public let benchmarks = [
% for (Name, Expr) in Sequences:
BenchmarkInfo(
name: "DropFirst${Name}",
runFunction: run_DropFirst${Name},
tags: [.validation, .api${
', .Array],\n setUpFunction: { blackHole(array) })' if 'Array' in Name else
'])' },
% end
]
% for (Name, Expr) in Sequences:
@inline(never)
public func run_DropFirst${Name}(_ n: Int) {
let s = ${Expr}
for _ in 1...20*n {
var result = 0
for element in s.dropFirst(dropCount) {
result += element
}
check(result == sumCount)
}
}
% end
// ${'Local Variables'}:
// eval: (read-only-mode 1)
// End:
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