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https://github.com/nim-lang/Nim.git
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c3344862b0
This implements "deterministic" exception handling for Nim based on goto instead of setjmp. This means raising an exception is much cheaper than in C++'s table based implementations. Supports hard realtime systems. Default for --gc:arc and the C target because it's generally a good idea and arc is all about deterministic behavior. Note: This implies that fatal runtime traps are not catchable anymore! This needs to be documented.
40 lines
887 B
Nim
40 lines
887 B
Nim
discard """
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cmd: "nim $target $options --excessiveStackTrace:off $file"
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output: '''true'''
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"""
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const expected = """
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tassert_c.nim(35) tassert_c
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tassert_c.nim(34) foo
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assertions.nim(27) failedAssertImpl
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assertions.nim(20) raiseAssert
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fatal.nim(55) sysFatal"""
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proc tmatch(x, p: string): bool =
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var i = 0
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var k = 0
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while i < p.len:
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if p[i] == '*':
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let oldk = k
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while k < x.len and x[k] in {'0'..'9'}: inc k
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# no digit skipped?
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if oldk == k: return false
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inc i
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elif k < x.len and p[i] == x[k]:
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inc i
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inc k
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else:
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return false
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while k < x.len and x[k] in {' ', '\L', '\C'}: inc k
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result = i >= p.len and k >= x.len
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try:
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proc foo() =
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assert(false)
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foo()
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except AssertionError:
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let e = getCurrentException()
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let trace = e.getStackTrace
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echo tmatch(trace, expected)
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