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Allow multiple options using the same enum type

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Krzysztof Wolicki 2024-01-14 21:21:10 +01:00 • committed by Andrew Kelley
parent 88ee323cd7
commit 7116b02210
1 changed files with 22 additions and 4 deletions
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18
lib/std/Build/Step/Options.zig
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@ -14,6 +14,7 @@ generated_file: GeneratedFile,
contents: std.ArrayList(u8),
args: std.ArrayList(Arg),
encountered_types: std.StringHashMap(void),
pub fn create(owner: *std.Build) *Options {
const self = owner.allocator.create(Options) catch @panic("OOM");
@ -27,6 +28,7 @@ pub fn create(owner: *std.Build) *Options {
.generated_file = undefined,
.contents = std.ArrayList(u8).init(owner.allocator),
.args = std.ArrayList(Arg).init(owner.allocator),
.encountered_types = std.StringHashMap(void).init(owner.allocator),
};
self.generated_file = .{ .step = &self.step };
@ -101,11 +103,14 @@ fn addOptionFallible(self: *Options, comptime T: type, name: []const u8, value:
}
switch (@typeInfo(T)) {
.Enum => |enum_info| {
const gop = try self.encountered_types.getOrPut(@typeName(T));
if (!gop.found_existing) {
try out.print("pub const {} = enum {{\n", .{std.zig.fmtId(@typeName(T))});
inline for (enum_info.fields) |field| {
try out.print(" {},\n", .{std.zig.fmtId(field.name)});
}
try out.writeAll("};\n");
}
try out.print("pub const {}: {s} = .{s};\n", .{
std.zig.fmtId(name),
std.zig.fmtId(@typeName(T)),
@ -322,6 +327,11 @@ test Options {
@"0.8.1",
};
const NormalEnum = enum {
foo,
bar,
};
const nested_array = [2][2]u16{
[2]u16{ 300, 200 },
[2]u16{ 300, 200 },
@ -338,6 +348,8 @@ test Options {
options.addOption([]const []const u16, "nested_slice", nested_slice);
options.addOption(KeywordEnum, "keyword_enum", .@"0.8.1");
options.addOption(std.SemanticVersion, "semantic_version", try std.SemanticVersion.parse("0.1.2-foo+bar"));
options.addOption(NormalEnum, "normal1", NormalEnum.foo);
options.addOption(NormalEnum, "normal2", NormalEnum.bar);
try std.testing.expectEqualStrings(
\\pub const option1: usize = 1;
@ -377,6 +389,12 @@ test Options {
\\ .pre = "foo",
\\ .build = "bar",
\\};
\\pub const @"Build.Step.Options.decltest.Options.NormalEnum" = enum {
\\ foo,
\\ bar,
\\};
\\pub const normal1: @"Build.Step.Options.decltest.Options.NormalEnum" = .foo;
\\pub const normal2: @"Build.Step.Options.decltest.Options.NormalEnum" = .bar;
\\
, options.contents.items);