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std: format enum-literals

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This commit is contained in:
Michael Dusan 2020-03-05 12:19:08 -05:00 committed by Andrew Kelley
parent debcc79d56
commit 1091fee242
1 changed files with 11 additions and 0 deletions
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11
lib/std/fmt.zig
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@ -491,6 +491,13 @@ pub fn formatType(
return format(context, Errors, output, "{}@{x}", .{ @typeName(T), @ptrToInt(value) });
},
.Type => return output(context, @typeName(T)),
.EnumLiteral => {
const name = @tagName(value);
var buffer: [name.len + 1]u8 = undefined;
buffer[0] = '.';
std.mem.copy(u8, buffer[1..], name);
return formatType(buffer, fmt, options, context, Errors, output, max_depth);
},
else => @compileError("Unable to format type '" ++ @typeName(T) ++ "'"),
}
}
@ -1744,3 +1751,7 @@ test "vector" {
try testFmt("{ 1kB, 2kB, 3kB, 4kB }", "{B}", .{vu64});
try testFmt("{ 1000B, 1.953125KiB, 2.9296875KiB, 3.90625KiB }", "{Bi}", .{vu64});
}
test "enum-literal" {
try testFmt(".hello_world", "{}", .{.hello_world});
}