Xcode调试器报告Swift字典为空（po reports {}） [英] Xcode debugger reporting Swift dictionaries as empty (po reports {})

问题描述

当我等到Xcode 6.1.1在这行之后点击一个断点

When I wait until Xcode 6.1.1 hits a breakpoint after this line

let metrics = ["leading" : 15.0, "size" : 44.0]

然后键入 po指标调试器报告（延迟几秒钟） {} ，这似乎是错误的。 po metrics.count 报告 2 ，这是正确的。

and then type po metrics the debugger reports (after several seconds delay) {}, which seems wrong. po metrics.count reports 2, which is right.

这是一个功能还是一个错误？

Is this a feature or a bug?

更新在物理设备（iPhone 5）上调试时出现问题，例如

UPDATE The problem appears when debugging on a physical device (iPhone 5), e.g. not on a simulator (e.g. iPhone 6 Plus).

推荐答案

您是否尝试这样做？

let metrics:NSDictionary? = ["leading" : 15.0, "size" : 44.0]

println(metrics!)

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