[squeak-dev] Re: Bug in BytecodeGenerator>>#jump:if:
Klaus D. Witzel
klaus.witzel at cobss.com
Sun Jun 22 16:02:27 UTC 2008
On Sun, 22 Jun 2008 17:16:37 +0200, Nicolas wrote:
> So what would you assert about longJumpIfFalseTest?
> We could assert that trying to compile such a method should raise an
> Exception (let's say a ByteCodeLimitException).
No, I wouldn't do that. I'd wrap the instance of CompiledMethod into an
InstructionStream using temps | is msg | and check it on the meta level,
without executing the method and without the possibility that this crashes
the VM, like
(msg := is nextInstruction) selector == #pushConstant: and: [msg
arguments = #(true)].
(msg := is nextInstruction) selector == #jump:if: and: [msg arguments =
where offset is the one expected.
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