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stage2: C backend: properly render type of array decls

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Andrew Kelley 2020-12-28 18:24:55 -07:00
parent 52056b156b
commit 37f04d66be
1 changed files with 16 additions and 5 deletions
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21
src/codegen/c.zig
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@ -86,9 +86,7 @@ fn renderType(
},
.Array => {
try renderType(ctx, writer, t.elemType());
const sentinel_bit = @boolToInt(t.sentinel() != null);
const c_len = t.arrayLen() + sentinel_bit;
try writer.print("[{d}]", .{c_len});
try writer.writeAll(" *");
},
else => |e| return ctx.fail(ctx.decl.src(), "TODO: C backend: implement type {s}", .{
@tagName(e),
@ -254,8 +252,21 @@ pub fn generate(file: *C, decl: *Decl) !void {
// TODO ask the Decl if it is const
// https://github.com/ziglang/zig/issues/7582
try renderType(&ctx, writer, tv.ty);
try writer.print(" {s} = ", .{decl.name});
var suffix = std.ArrayList(u8).init(file.base.allocator);
defer suffix.deinit();
var render_ty = tv.ty;
while (render_ty.zigTypeTag() == .Array) {
const sentinel_bit = @boolToInt(render_ty.sentinel() != null);
const c_len = render_ty.arrayLen() + sentinel_bit;
try suffix.writer().print("[{d}]", .{c_len});
render_ty = render_ty.elemType();
}
try renderType(&ctx, writer, render_ty);
try writer.print(" {s}{s}", .{ decl.name, suffix.items });
try writer.writeAll(" = ");
try renderValue(&ctx, writer, tv.ty, tv.val);
try writer.writeAll(";\n");
}