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lots of miscellaneous things all in one big commit

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* add `@compileLog(...)` builtin function
   - Helps debug code running at compile time
   - See #240
 * fix crash when there is an error on the start value of a slice
 * add implicit cast from int and float types to int and float
   literals if the value is known at compile time
 * make array concatenation work with slices in addition to
   arrays and c string literals
 * fix compile error message for something not having field access
 * fix crash when `@setDebugSafety()` was called from a
   function being evaluated at compile-time
 * fix compile-time evaluation of overflow math builtins.
 * avoid debug safety panic handler in builtin.o and compiler_rt.o
   since we use no debug safety in these modules anyway
 * add compiler_rt functions for division on ARM
   - Closes #254
 * move default panic handler to std.debug so users can
   call it manually
 * std.io.printf supports a width in the format specifier
This commit is contained in:
Andrew Kelley
2017-02-09 02:50:03 -05:00
parent 8a859afd58
commit fc100d7b3b
15 changed files with 622 additions and 78 deletions
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22
test/run_tests.cpp
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@@ -1015,8 +1015,9 @@ const x = foo();
add_compile_fail_case("array concatenation with wrong type", R"SOURCE(
const src = "aoeu";
const a = src[0...] ++ "foo";
)SOURCE", 1, ".tmp_source.zig:3:14: error: expected array or C string literal, found '[]u8'");
const derp = usize(1234);
const a = derp ++ "foo";
)SOURCE", 1, ".tmp_source.zig:4:11: error: expected array or C string literal, found 'usize'");
add_compile_fail_case("non compile time array concatenation", R"SOURCE(
fn f(s: [10]u8) -> []u8 {
@@ -1632,6 +1633,23 @@ const some_data: [100]u8 = {
};
)SOURCE", 1, ".tmp_source.zig:3:32: error: alignment value must be power of 2");
add_compile_fail_case("compile log", R"SOURCE(
fn foo() {
comptime bar(12, "hi");
}
fn bar(a: i32, b: []const u8) {
@compileLog("begin");
@compileLog("a", a, "b", b);
@compileLog("end");
}
)SOURCE", 6,
".tmp_source.zig:6:5: error: found compile log statement",
".tmp_source.zig:3:17: note: called from here",
".tmp_source.zig:7:5: error: found compile log statement",
".tmp_source.zig:3:17: note: called from here",
".tmp_source.zig:8:5: error: found compile log statement",
".tmp_source.zig:3:17: note: called from here");
}
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