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Merge pull request #1185 from ziglang/undefined-at-comptime-improvements

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Operators now throw a compiler error when operating on undefined values
This commit is contained in:
Andrew Kelley
2018-07-01 01:33:23 -04:00
committed by GitHub
parent 42033ea3ca b182151de5
commit 4c0e280d6d
2 changed files with 513 additions and 31 deletions
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410
test/compile_errors.zig
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@@ -1905,6 +1905,416 @@ pub fn addCases(cases: *tests.CompileErrorContext) void {
".tmp_source.zig:1:15: error: use of undefined value",
);
cases.add(
"div on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a / a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"div assign on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ a /= a;
\\}
,
".tmp_source.zig:3:5: error: use of undefined value",
);
cases.add(
"mod on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a % a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"mod assign on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ a %= a;
\\}
,
".tmp_source.zig:3:5: error: use of undefined value",
);
cases.add(
"add on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a + a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"add assign on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ a += a;
\\}
,
".tmp_source.zig:3:5: error: use of undefined value",
);
cases.add(
"add wrap on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a +% a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"add wrap assign on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ a +%= a;
\\}
,
".tmp_source.zig:3:5: error: use of undefined value",
);
cases.add(
"sub on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a - a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"sub assign on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ a -= a;
\\}
,
".tmp_source.zig:3:5: error: use of undefined value",
);
cases.add(
"sub wrap on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a -% a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"sub wrap assign on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ a -%= a;
\\}
,
".tmp_source.zig:3:5: error: use of undefined value",
);
cases.add(
"mult on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a * a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"mult assign on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ a *= a;
\\}
,
".tmp_source.zig:3:5: error: use of undefined value",
);
cases.add(
"mult wrap on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a *% a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"mult wrap assign on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ a *%= a;
\\}
,
".tmp_source.zig:3:5: error: use of undefined value",
);
cases.add(
"shift left on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a << 2;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"shift left assign on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ a <<= 2;
\\}
,
".tmp_source.zig:3:5: error: use of undefined value",
);
cases.add(
"shift right on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a >> 2;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"shift left assign on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ a >>= 2;
\\}
,
".tmp_source.zig:3:5: error: use of undefined value",
);
cases.add(
"bin and on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a & a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"bin and assign on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ a &= a;
\\}
,
".tmp_source.zig:3:5: error: use of undefined value",
);
cases.add(
"bin or on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a | a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"bin or assign on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ a |= a;
\\}
,
".tmp_source.zig:3:5: error: use of undefined value",
);
cases.add(
"bin xor on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a ^ a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"bin xor assign on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ a ^= a;
\\}
,
".tmp_source.zig:3:5: error: use of undefined value",
);
cases.add(
"equal on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a == a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"not equal on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a != a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"greater than on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a > a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"greater than equal on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a >= a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"less than on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a < a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"less than equal on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = a <= a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"and on undefined value",
\\comptime {
\\ var a: bool = undefined;
\\ _ = a and a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"or on undefined value",
\\comptime {
\\ var a: bool = undefined;
\\ _ = a or a;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"negate on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = -a;
\\}
,
".tmp_source.zig:3:10: error: use of undefined value",
);
cases.add(
"negate wrap on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = -%a;
\\}
,
".tmp_source.zig:3:11: error: use of undefined value",
);
cases.add(
"bin not on undefined value",
\\comptime {
\\ var a: i64 = undefined;
\\ _ = ~a;
\\}
,
".tmp_source.zig:3:10: error: use of undefined value",
);
cases.add(
"bool not on undefined value",
\\comptime {
\\ var a: bool = undefined;
\\ _ = !a;
\\}
,
".tmp_source.zig:3:10: error: use of undefined value",
);
cases.add(
"orelse on undefined value",
\\comptime {
\\ var a: ?bool = undefined;
\\ _ = a orelse false;
\\}
,
".tmp_source.zig:3:11: error: use of undefined value",
);
cases.add(
"catch on undefined value",
\\comptime {
\\ var a: error!bool = undefined;
\\ _ = a catch |err| false;
\\}
,
".tmp_source.zig:3:11: error: use of undefined value",
);
cases.add(
"deref on undefined value",
\\comptime {
\\ var a: *u8 = undefined;
\\ _ = a.*;
\\}
,
".tmp_source.zig:3:9: error: use of undefined value",
);
cases.add(
"endless loop in function evaluation",
\\const seventh_fib_number = fibbonaci(7);