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aro_translate_c: basic typedef support

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This commit is contained in:
Evan Haas 2024-07-30 21:27:08 -07:00
parent 055077f9dd
commit 6a103d87f6
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1 changed files with 41 additions and 3 deletions
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44
lib/compiler/aro_translate_c.zig
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@ -185,7 +185,7 @@ fn prepopulateGlobalNameTable(c: *Context) !void {
for (c.tree.root_decls) |node| {
const data = node_data[@intFromEnum(node)];
switch (node_tags[@intFromEnum(node)]) {
.typedef => @panic("TODO"),
.typedef => {},
.struct_decl_two,
.union_decl_two,
@ -309,8 +309,46 @@ fn transDecl(c: *Context, scope: *Scope, decl: NodeIndex) !void {
}
}
fn transTypeDef(_: *Context, _: *Scope, _: NodeIndex) Error!void {
@panic("TODO");
fn transTypeDef(c: *Context, scope: *Scope, typedef_decl: NodeIndex) Error!void {
const ty = c.tree.nodes.items(.ty)[@intFromEnum(typedef_decl)];
const data = c.tree.nodes.items(.data)[@intFromEnum(typedef_decl)];
const toplevel = scope.id == .root;
const bs: *Scope.Block = if (!toplevel) try scope.findBlockScope(c) else undefined;
var name: []const u8 = c.tree.tokSlice(data.decl.name);
try c.typedefs.put(c.gpa, name, {});
if (!toplevel) name = try bs.makeMangledName(c, name);
const typedef_loc = data.decl.name;
const init_node = transType(c, scope, ty, .standard, typedef_loc) catch |err| switch (err) {
error.UnsupportedType => {
return failDecl(c, typedef_loc, name, "unable to resolve typedef child type", .{});
},
error.OutOfMemory => |e| return e,
};
const payload = try c.arena.create(ast.Payload.SimpleVarDecl);
payload.* = .{
.base = .{ .tag = ([2]ZigTag{ .var_simple, .pub_var_simple })[@intFromBool(toplevel)] },
.data = .{
.name = name,
.init = init_node,
},
};
const node = ZigNode.initPayload(&payload.base);
if (toplevel) {
try addTopLevelDecl(c, name, node);
} else {
try scope.appendNode(node);
if (node.tag() != .pub_var_simple) {
try bs.discardVariable(c, name);
}
}
}
fn mangleWeakGlobalName(c: *Context, want_name: []const u8) ![]const u8 {