FloatingPointConversionTraps.swift.gyb

// RUN: rm -rf %t
// RUN: mkdir -p %t
// RUN: %S/../../utils/gyb %s -o %t/FloatingPointConversionTraps.swift
// RUN: %S/../../utils/line-directive %t/FloatingPointConversionTraps.swift -- %target-build-swift %t/FloatingPointConversionTraps.swift -Xfrontend -disable-access-control -o %t/a.out_Debug
// RUN: %S/../../utils/line-directive %t/FloatingPointConversionTraps.swift -- %target-build-swift %t/FloatingPointConversionTraps.swift -Xfrontend -disable-access-control -o %t/a.out_Release -O
//
// RUN: %S/../../utils/line-directive %t/FloatingPointConversionTraps.swift -- %target-run %t/a.out_Debug
// RUN: %S/../../utils/line-directive %t/FloatingPointConversionTraps.swift -- %target-run %t/a.out_Release
// REQUIRES: executable_test

import StdlibUnittest

%{

from SwiftIntTypes import *

# Test cases are written in a way that they don't depend on the word size.
word_bits = 4

}%

#if arch(i386) || arch(x86_64)
extension Float80 {
  public static var infinity: Float80 {
    return 1.0 / 0.0
  }
  public static var quietNaN: Float80 {
    return 0.0 / 0.0
  }
}
#endif

func getInfiniteOrNaNMessage(floatType: String) -> String {
  // FIXME: <rdar://problem/17958458> Int(Float80.quietNaN) is garbage
  if floatType == "Float80" {
    return ""
  }
  if _isDebugAssertConfiguration() {
    return "either infinite or NaN"
  }
  return ""
}

func getTooSmallMessage() -> String {
  if _isDebugAssertConfiguration() {
    return "it is less than"
  }
  return ""
}

func getTooLargeMessage() -> String {
  if _isDebugAssertConfiguration() {
    return "it is greater than"
  }
  return ""
}

var FloatingPointConversion = TestSuite("FloatingPointConversion")

% for FloatSelf in ['Float32', 'Float64', 'Float80']:
%   for int_ty in all_integer_types(word_bits):
%     IntSelf = int_ty.stdlib_name

%     if FloatSelf == 'Float80':
#if arch(i386) || arch(x86_64)
%     end

FloatingPointConversion.test("${FloatSelf}/${IntSelf}/+inf")
  .crashOutputMatches(getInfiniteOrNaNMessage("${FloatSelf}")).code {
  if true {
    var a = get${IntSelf}(${IntSelf}(get${FloatSelf}(0.0)))
    expectEqual(0, a)
  }
  if true {
    var a = get${IntSelf}(${IntSelf}(get${FloatSelf}(123.0)))
    expectEqual(123, a)
  }

  expectCrashLater()
  get${IntSelf}(${IntSelf}(get${FloatSelf}(+${FloatSelf}.infinity)))
}

%     if int_ty.is_signed:

FloatingPointConversion.test("${FloatSelf}/${IntSelf}/-inf")
  .crashOutputMatches(getInfiniteOrNaNMessage("${FloatSelf}")).code {
  if true {
    var a = get${IntSelf}(${IntSelf}(get${FloatSelf}(-0.0)))
    expectEqual(0, a)
  }
  if true {
    var a = get${IntSelf}(${IntSelf}(get${FloatSelf}(-123.0)))
    expectEqual(-123, a)
  }

  expectCrashLater()
  get${IntSelf}(${IntSelf}(get${FloatSelf}(-${FloatSelf}.infinity)))
}

%     else:

FloatingPointConversion.test("${FloatSelf}/${IntSelf}/negative")
  .crashOutputMatches(getTooSmallMessage()).code {
  expectCrashLater()
  get${IntSelf}(${IntSelf}(get${FloatSelf}(-123.0)))
}

FloatingPointConversion.test("${FloatSelf}/${IntSelf}/-inf")
  .crashOutputMatches(getInfiniteOrNaNMessage("${FloatSelf}")).code {
  expectCrashLater()
  get${IntSelf}(${IntSelf}(get${FloatSelf}(-${FloatSelf}.infinity)))
}

%     end

FloatingPointConversion.test("${FloatSelf}/${IntSelf}/NaN")
  .xfail(.Custom({ "${FloatSelf}" == "Float80" }, reason: "<rdar://problem/17958458> Int(Float80.quietNaN) is garbage"))
  .crashOutputMatches(getInfiniteOrNaNMessage("${FloatSelf}")).code {
  expectCrashLater()
  get${IntSelf}(${IntSelf}(get${FloatSelf}(${FloatSelf}.quietNaN)))
}

%     if FloatSelf == 'Float80':
#endif
%     end

%   end
% end

runAllTests()