build: remove `ZiglingStep.eval`

Remove the `ZiglingStep.eval` method and the src/ipc.zig source code.
Use `Step.evalZigProcess`, instead. This greatly simplifies the code.

Print the error messages and error bundle in `ZiglingStep.make`, both in
case of error and success.

Additionally, remove the `ZiglingStep.is_testing` field, since it is no
longer necessary.

1 files changed, 0 insertions, 68 deletions

diff --git a/src/ipc.zig b/src/ipc.zig
deleted file mode 100644
index 9eaaa13..0000000
--- a/src/ipc.zig
+++ /dev/null
@@ -1,68 +0,0 @@
-/// Client side support for Zig IPC.
-const std = @import("std");
-const debug = std.debug;
-const fs = std.fs;
-const mem = std.mem;
-
-const Allocator = mem.Allocator;
-const Client = std.zig.Client;
-const ErrorBundle = std.zig.ErrorBundle;
-const Server = std.zig.Server;
-
-/// This data structure must be kept in sync with zig.Server.Message.EmitBinPath.
-const EmitBinPath = struct {
-    flags: Flags,
-    path: []const u8,
-
-    pub const Flags = Server.Message.EmitBinPath.Flags;
-
-    pub fn deinit(self: *EmitBinPath, allocator: Allocator) void {
-        allocator.free(self.path);
-        self.* = undefined;
-    }
-};
-
-pub fn parseErrorBundle(allocator: Allocator, data: []const u8) !ErrorBundle {
-    const EbHdr = Server.Message.ErrorBundle;
-    const eb_hdr = @ptrCast(*align(1) const EbHdr, data);
-    const extra_bytes =
-        data[@sizeOf(EbHdr)..][0 .. @sizeOf(u32) * eb_hdr.extra_len];
-    const string_bytes =
-        data[@sizeOf(EbHdr) + extra_bytes.len ..][0..eb_hdr.string_bytes_len];
-
-    // TODO: use @ptrCast when the compiler supports it
-    const unaligned_extra = std.mem.bytesAsSlice(u32, extra_bytes);
-    const extra_array = try allocator.alloc(u32, unaligned_extra.len);
-    // TODO: use @memcpy when it supports slices
-    //
-    // Don't use the "multi-object for loop" syntax, in
-    // order to avoid a syntax error with old Zig compilers.
-    var i: usize = 0;
-    while (i < extra_array.len) : (i += 1) {
-        extra_array[i] = unaligned_extra[i];
-    }
-
-    return .{
-        .string_bytes = try allocator.dupe(u8, string_bytes),
-        .extra = extra_array,
-    };
-}
-
-pub fn parseEmitBinPath(allocator: Allocator, data: []const u8) !EmitBinPath {
-    const EbpHdr = Server.Message.EmitBinPath;
-    const ebp_hdr = @ptrCast(*align(1) const EbpHdr, data);
-    const path = try allocator.dupe(u8, data[@sizeOf(EbpHdr)..]);
-
-    return .{
-        .flags = ebp_hdr.flags,
-        .path = path,
-    };
-}
-
-pub fn sendMessage(file: fs.File, tag: Client.Message.Tag) !void {
-    const header: Client.Message.Header = .{
-        .tag = tag,
-        .bytes_len = 0,
-    };
-    try file.writeAll(mem.asBytes(&header));
-}