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Basic basetype parsing

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This commit is contained in:
Robin Voetter
2020-06-09 17:26:26 +02:00
parent 3945c8caf5
commit ba6180e336
2 changed files with 50 additions and 11 deletions
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54
generator/spec-parse.zig
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@@ -53,17 +53,23 @@ fn parseTypes(allocator: *Allocator, out: []registry.Declaration, types_elem: *x
var i: usize = 0;
var it = types_elem.findChildrenByTag("type");
while (it.next()) |ty| {
// TODO: Handle foreign types
const category = ty.getAttribute("category") orelse continue;
out[i] = blk: {
const category = ty.getAttribute("category") orelse {
break :blk try parseForeigntype(ty);
};
// Enums are handled later, in parseEnums. This also has the effect of filtering
// out any enums which have no elements, and should be unused by other parts of the API.
out[i] = if (mem.eql(u8, category, "bitmask"))
try parseBitmaskType(ty)
else if (mem.eql(u8, category, "handle"))
try parseHandleType(ty)
else
continue;
// Enums are handled later, in parseEnums. This also has the effect of filtering
// out any enums which have no elements, and should be unused by other parts of the API.
if (mem.eql(u8, category, "bitmask")) {
break :blk try parseBitmaskType(ty);
} else if (mem.eql(u8, category, "handle")) {
break :blk try parseHandleType(ty);
} else if (mem.eql(u8, category, "basetype")) {
break :blk try parseBaseType(ty);
}
continue;
};
i += 1;
}
@@ -71,6 +77,19 @@ fn parseTypes(allocator: *Allocator, out: []registry.Declaration, types_elem: *x
return i;
}
fn parseForeigntype(ty: *xml.Element) !registry.Declaration {
const name = ty.getAttribute("name") orelse return error.InvalidRegistry;
const dependency = ty.getAttribute("requires") orelse if (mem.eql(u8, name, "int"))
"vk_platform" // for some reason, int doesn't depend on vk_platform (but the other c types do)
else
return error.InvalidRegistry;
return registry.Declaration{
.name = name,
.decl_type = .{.Foreign = .{.dependency = dependency}},
};
}
fn parseBitmaskType(ty: *xml.Element) !registry.Declaration {
if (ty.getAttribute("name")) |name| {
const alias = ty.getAttribute("alias") orelse return error.InvalidRegistry;
@@ -114,6 +133,21 @@ fn parseHandleType(ty: *xml.Element) !registry.Declaration {
}
}
fn parseBaseType(ty: *xml.Element) !registry.Declaration {
const name = ty.getCharData("name") orelse return error.InvalidRegistry;
if (ty.getCharData("type")) |alias| { // TODO: Parse as full type?
return registry.Declaration{
.name = name,
.decl_type = .{.Alias = alias},
};
} else {
return registry.Declaration{
.name = name,
.decl_type = .{.Opaque = {}},
};
}
}
fn parseEnums(allocator: *Allocator, out: []registry.Declaration, root: *xml.Element) !usize {
var i: usize = 0;
var it = root.findChildrenByTag("enums");