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std.Build.ConfigHeader: override include guard option for blank style (#17310)

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This commit adds an option to allow for overriding the default header guard that is generated from the output
file path.
This commit is contained in:
Luis Cáceres 2023-09-28 23:30:42 +00:00 committed by GitHub
parent 8f2f12f940
commit acac685621
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 15 additions and 8 deletions
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23
lib/std/Build/Step/ConfigHeader.zig
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@ -42,6 +42,7 @@ output_file: std.Build.GeneratedFile,
style: Style,
max_bytes: usize,
include_path: []const u8,
include_guard_override: ?[]const u8,
pub const base_id: Step.Id = .config_header;
@ -50,6 +51,7 @@ pub const Options = struct {
max_bytes: usize = 2 * 1024 * 1024,
include_path: ?[]const u8 = null,
first_ret_addr: ?usize = null,
include_guard_override: ?[]const u8 = null,
};
pub fn create(owner: *std.Build, options: Options) *ConfigHeader {
@ -91,6 +93,7 @@ pub fn create(owner: *std.Build, options: Options) *ConfigHeader {
.max_bytes = options.max_bytes,
.include_path = include_path,
.include_guard_override = options.include_guard_override,
.output_file = .{ .step = &self.step },
};
@ -201,7 +204,7 @@ fn make(step: *Step, prog_node: *std.Progress.Node) !void {
},
.blank => {
try output.appendSlice(c_generated_line);
try render_blank(&output, self.values, self.include_path);
try render_blank(&output, self.values, self.include_path, self.include_guard_override);
},
.nasm => {
try output.appendSlice(asm_generated_line);
@ -415,15 +418,19 @@ fn render_blank(
output: *std.ArrayList(u8),
defines: std.StringArrayHashMap(Value),
include_path: []const u8,
include_guard_override: ?[]const u8,
) !void {
const include_guard_name = try output.allocator.dupe(u8, include_path);
for (include_guard_name) |*byte| {
switch (byte.*) {
'a'...'z' => byte.* = byte.* - 'a' + 'A',
'A'...'Z', '0'...'9' => continue,
else => byte.* = '_',
const include_guard_name = include_guard_override orelse blk: {
const name = try output.allocator.dupe(u8, include_path);
for (name) |*byte| {
switch (byte.*) {
'a'...'z' => byte.* = byte.* - 'a' + 'A',
'A'...'Z', '0'...'9' => continue,
else => byte.* = '_',
}
}
}
break :blk name;
};
try output.appendSlice("#ifndef ");
try output.appendSlice(include_guard_name);