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Command pointers & info

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This commit is contained in:
Robin Voetter
2020-06-22 01:34:40 +02:00
parent 3bef667e24
commit bf0c4713d2
1 changed files with 46 additions and 5 deletions
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51
generator/render.zig
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@@ -155,6 +155,8 @@ fn Renderer(comptime WriterType: type) type {
for (self.registry.decls) |decl| {
try self.renderDecl(decl);
}
try self.renderCommandPtrs();
}
fn renderApiConstant(self: *Self, api_constant: reg.ApiConstant) !void {
@@ -226,7 +228,7 @@ fn Renderer(comptime WriterType: type) type {
fn renderTypeInfo(self: *Self, type_info: reg.TypeInfo) RenderTypeInfoError!void {
switch (type_info) {
.name => |name| try self.renderTypeName(name),
.command_ptr => |command_ptr| try self.renderCommandPtr(command_ptr),
.command_ptr => |command_ptr| try self.renderCommandPtr(command_ptr, true),
.pointer => |pointer| try self.renderPointer(pointer),
.array => |array| try self.renderArray(array),
}
@@ -259,8 +261,11 @@ fn Renderer(comptime WriterType: type) type {
try self.writeIdentifier(name);
}
fn renderCommandPtr(self: *Self, command_ptr: reg.Command) !void {
try self.writer.writeAll("?fn(");
fn renderCommandPtr(self: *Self, command_ptr: reg.Command, optional: bool) !void {
if (optional) {
try self.writer.writeByte('?');
}
try self.writer.writeAll("fn(");
for (command_ptr.params) |param| {
try self.writeIdentifierWithCase(.snake, param.name);
try self.writer.writeAll(": ");
@@ -464,9 +469,10 @@ fn Renderer(comptime WriterType: type) type {
fn renderAlias(self: *Self, name: []const u8, alias: reg.Alias) !void {
if (alias.target == .other_command) {
return; // TODO: Decide on how to tackle commands
return;
} else if (self.exctractBitflagName(name) != null) {
return; // Don't make aliases of the bitflag names, as those are replaced by just the flags type
// Don't make aliases of the bitflag names, as those are replaced by just the flags type
return;
}
try self.writer.writeAll("const ");
@@ -508,6 +514,41 @@ fn Renderer(comptime WriterType: type) type {
try self.renderTypeInfo(type_info);
try self.writer.writeAll(";\n");
}
fn renderCommandPtrs(self: *Self) !void {
for (self.registry.decls) |decl| {
if (decl.decl_type != .command) {
continue;
}
try self.writer.print("const PFN_{} = ", .{decl.name});
try self.renderCommandPtr(decl.decl_type.command, false);
try self.writer.writeAll(";\n");
}
try self.writer.writeAll(
\\const commands = struct {
\\ const CommandInfo = struct {
\\ Pfn: type,
\\ link_name: [:0]const u8,
\\ };
\\
);
for (self.registry.decls) |decl| {
if (decl.decl_type != .command) {
continue;
}
try self.writer.writeAll("const ");
try self.renderTypeName(decl.name);
try self.writer.print(
" = CommandInfo{{ .Pfn = PFN_{}, .link_name = \"{}\" }};\n",
.{decl.name, decl.name}
);
}
try self.writer.writeAll("};\n");
}
};
}