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Make type specific add functions

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Basically, move type specific code into their own functions instead
of making `add` a giant function responsible for everything.
This commit is contained in:
LeRoyce Pearson
2020-03-06 21:40:33 -07:00
committed by Andrew Kelley
parent 4173dbdce9
commit fde188aadc
1 changed files with 27 additions and 13 deletions
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40
lib/std/cache_hash.zig
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@@ -66,24 +66,38 @@ pub const CacheHash = struct {
self.blake3.update(&[_]u8{0});
}
pub fn addBool(self: *@This(), val: bool) void {
debug.assert(self.manifest_file == null);
self.blake3.update(&[_]u8{@boolToInt(val)});
}
pub fn addInt(self: *@This(), val: var) void {
debug.assert(self.manifest_file == null);
switch (@typeInfo(@TypeOf(val))) {
.Int => |int_info| {
if (int_info.bits == 0 or int_info.bits % 8 != 0) {
@compileError("Unsupported integer size. Please use a multiple of 8, manually convert to a u8 slice.");
}
const buf_len = @divExact(int_info.bits, 8);
var buf: [buf_len]u8 = undefined;
mem.writeIntNative(@TypeOf(val), &buf, val);
self.addSlice(&buf);
self.blake3.update(&[_]u8{0});
},
else => @compileError("Type must be an integer."),
}
}
pub fn add(self: *@This(), val: var) void {
debug.assert(self.manifest_file == null);
const val_type = @TypeOf(val);
switch (@typeInfo(val_type)) {
.Int => |int_info| if (int_info.bits != 0 and int_info.bits % 8 == 0) {
const buf_len = @divExact(int_info.bits, 8);
var buf: [buf_len]u8 = undefined;
mem.writeIntNative(val_type, &buf, val);
self.addSlice(&buf);
} else {
@compileError("Unsupported integer size. Please use a multiple of 8, manually convert to a u8 slice.");
},
.Bool => {
var buf: [1]u8 = undefined;
buf[0] = if (val) 1 else 0;
self.blake3.update(&buf);
},
.Int => self.addInt(val),
.Bool => self.addBool(val),
else => @compileError("Unsupported type"),
}
}