Xcode-6.3 (6D1002): [Swift 1.2] Incorrect type mismatch calling XCTAssert

Originator:segiddins
Number:rdar://20788378 Date Originated:01-May-2015 05:51 PM
Status:Open Resolved:
Product:Developer Tools Product Version:Xcode-6.3 (6D1002)
Classification:Serious Bug Reproducible:Always
 
Summary:
The compiler gives an erroneous “Cannot invoke ‘XCTAssert’ with an argument list of the ‘(Bool)’”

Steps to Reproduce:
1) git clone https://github.com/segiddins/realm-cocoa —branch=seg-xctassert-type-mismatch —depth=1
2) sh build.sh test-ios-swift

Expected Results:
The tests should compile, and likely pass

Actual Results:
error: cannot invoke 'XCTAssert' with an argument list of type '(Bool)'

Notes:
Prompted by https://twitter.com/jckarter/status/594298674575847424

Comments

Changing the error lines to: XCTAssert(oldObject?["array"]?.firstObject is MigrationObject?) XCTAssert(newObject?["array"]?.firstObject is MigrationObject?)

fixes the error, so it's really just a bad error message from the typechecker


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