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https://github.com/ton-blockchain/ton
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ef5719d7e6
In stdlib, all existing pure functions are asm-implemented. But since we introduced a `pure` keyword applicable to user-defined functions, we need to check that they won't have any side effects (exceptions, globals modification, etc.)
25 lines
390 B
Text
25 lines
390 B
Text
builder begin_cell() pure asm "NEWC";
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global int g;
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(builder) f_pure() pure {
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var g; // strange, but this doesn't make a variable local, it still refers to a global one
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builder b = begin_cell();
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g = g + 1;
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return b;
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}
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int main() {
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g = 0;
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f_pure();
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return g;
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}
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{-
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@compilation_should_fail
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@stderr
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"""
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An impure operation in a pure function
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g = g + 1;
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"""
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-}
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