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496
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* Now that SpiderMonkey is C++, an interface designed in that language can be more expressive and less error-prone than a C interface. | * Now that SpiderMonkey is C++, an interface designed in that language can be more expressive and less error-prone than a C interface. | ||
= | = General goals = | ||
* The interface must operate at the source language level, and not expose details of the implementation technique: it should behave the same way regardless of whether the debuggee is being executed by a bytecode interpreter (SpiderMonkey classic), a just-in-time compiler (TraceMonkey), or a whole-method JIT (Jägermonkey). If the implementation compiles to native code, the debugging interface should be independent of the underlying processor architecture. The interface should be sufficiently high-level to allow debugging of (say) JITted code without requiring the implementation to pretend that is still a bytecode interpreter. | * The interface must operate at the source language level, and not expose details of the implementation technique: it should behave the same way regardless of whether the debuggee is being executed by a bytecode interpreter (SpiderMonkey classic), a just-in-time compiler (TraceMonkey), or a whole-method JIT (Jägermonkey). If the implementation compiles to native code, the debugging interface should be independent of the underlying processor architecture. The interface should be sufficiently high-level to allow debugging of (say) JITted code without requiring the implementation to pretend that is still a bytecode interpreter. |