50 lines
1.2 KiB
GDScript3
50 lines
1.2 KiB
GDScript3
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class_name ErrorHandler
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## Handles raised Errors
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##
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## Objects of type [ThrowableBase] are handled by this type's singleton
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var _try_catch_stack : Array[TryCatch]
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var _has_failed : Dictionary
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func _init():
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self._try_catch_stack = []
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self._has_failed = {}
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static func singleton() -> ErrorHandler:
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var thread = GDRx.get_current_thread()
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if not GDRx.ErrorHandler_.has_key(thread):
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GDRx.ErrorHandler_.set_pair(thread, ErrorHandler.new())
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return GDRx.ErrorHandler_.get_value(thread)
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func run(stmt : TryCatch) -> bool:
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self._has_failed[stmt] = false
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self._try_catch_stack.push_back(stmt)
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stmt.risky_code.call()
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self._try_catch_stack.pop_back()
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var res = self._has_failed[stmt]
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self._has_failed.erase(stmt)
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return res
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func raise(exc : ThrowableBase, default = null) -> Variant:
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var handler : Callable = GDRx.basic.default_crash
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if self._try_catch_stack == null or self._try_catch_stack.is_empty():
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handler.call(exc)
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return default
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handler = GDRx.basic.noop
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var stmt : TryCatch = self._try_catch_stack.pop_back()
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self._has_failed[stmt] = true
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for type in exc.tags():
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if type in stmt.caught_types:
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handler = stmt.caught_types[type]
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break
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handler.call(exc)
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self._try_catch_stack.push_back(stmt)
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return default
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