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23 lines
1013 B
Python
23 lines
1013 B
Python
# Copyright (c) 2020 Rocky Bernstein
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def testtrue(self, lhs, n, rule, ast, tokens, first, last):
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# FIXME: make this work for all versions
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if self.version != 3.7:
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return False
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if rule == ("testtrue", ("expr", "jmp_true")):
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pjit = tokens[min(last - 1, n - 2)]
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# If we have a backwards (looping) jump then this is
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# really a testfalse. "assert"s throw this off too.
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if pjit == "POP_JUMP_IF_TRUE" and tokens[first].off2int() > pjit.attr:
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assert_next = tokens[min(last + 1, n - 1)]
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return assert_next != "RAISE_VARARGS_1"
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elif rule == ("testfalsel", ("expr", "jmp_true")):
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pjit = tokens[min(last - 1, n - 2)]
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# If we have a backwards (looping) jump then this is
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# really a testtrue. But "asserts" work funny
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if pjit == "POP_JUMP_IF_TRUE" and tokens[first].off2int() > pjit.attr:
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assert_next = tokens[min(last + 1, n - 1)]
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return assert_next == "RAISE_VARARGS_1"
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return False
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