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C backend: enumerate all the types in renderType

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Now that we're close to supporting all the types, get rid of the `else`
prong and explicitly list out those types that are not yet implemented.

Thanks @g-w1
This commit is contained in:
Andrew Kelley 2021-04-07 13:16:36 -07:00
parent 090834380c
commit 015599d1ef
1 changed files with 19 additions and 4 deletions
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23
src/codegen/c.zig
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@ -396,6 +396,9 @@ pub const DeclGen = struct {
else => unreachable,
}
},
.Float => return dg.fail(.{ .node_offset = 0 }, "TODO: C backend: implement type Float", .{}),
.Pointer => {
if (t.isSlice()) {
return dg.fail(.{ .node_offset = 0 }, "TODO: C backend: implement slices", .{});
@ -507,10 +510,22 @@ pub const DeclGen = struct {
try dg.renderType(w, int_tag_ty);
},
.Null, .Undefined => unreachable, // must be const or comptime
else => |e| return dg.fail(.{ .node_offset = 0 }, "TODO: C backend: implement type {s}", .{
@tagName(e),
}),
.Union => return dg.fail(.{ .node_offset = 0 }, "TODO: C backend: implement type Union", .{}),
.Fn => return dg.fail(.{ .node_offset = 0 }, "TODO: C backend: implement type Fn", .{}),
.Opaque => return dg.fail(.{ .node_offset = 0 }, "TODO: C backend: implement type Opaque", .{}),
.Frame => return dg.fail(.{ .node_offset = 0 }, "TODO: C backend: implement type Frame", .{}),
.AnyFrame => return dg.fail(.{ .node_offset = 0 }, "TODO: C backend: implement type AnyFrame", .{}),
.Vector => return dg.fail(.{ .node_offset = 0 }, "TODO: C backend: implement type Vector", .{}),
.Null,
.Undefined,
.EnumLiteral,
.ComptimeFloat,
.ComptimeInt,
.Type,
=> unreachable, // must be const or comptime
.BoundFn => unreachable, // this type will be deleted from the language
}
}