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InternPool: implement getExternFunc

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This commit is contained in:
Andrew Kelley
2023-07-09 16:51:23 -07:00
parent 8fd77395d6
commit 6d72f971af
4 changed files with 205 additions and 116 deletions
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32
src/InternPool.zig
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@@ -4393,22 +4393,20 @@ pub fn getFuncType(ip: *InternPool, gpa: Allocator, key: GetFuncTypeKey) Allocat
return @enumFromInt(ip.items.len - 1);
}
pub const GetExternFuncKey = struct {
param_types: []const Index,
noalias_bits: u32,
return_type: Index,
cc: std.builtin.CallingConvention,
alignment: Alignment,
is_var_args: bool,
decl: Module.Decl.Index,
lib_name: OptionalNullTerminatedString,
};
pub fn getExternFunc(ip: *InternPool, gpa: Allocator, key: GetExternFuncKey) Allocator.Error!Index {
_ = ip;
_ = gpa;
_ = key;
@panic("TODO");
pub fn getExternFunc(ip: *InternPool, gpa: Allocator, key: Key.ExternFunc) Allocator.Error!Index {
const adapter: KeyAdapter = .{ .intern_pool = ip };
const gop = try ip.map.getOrPutAdapted(gpa, Key{ .extern_func = key }, adapter);
if (gop.found_existing) return @enumFromInt(gop.index);
errdefer _ = ip.map.pop();
const prev_extra_len = ip.extra.items.len;
const extra_index = try ip.addExtra(gpa, @as(Tag.ExternFunc, key));
errdefer ip.extra.items.len = prev_extra_len;
try ip.items.append(gpa, .{
.tag = .extern_func,
.data = extra_index,
});
errdefer ip.items.len -= 1;
return @enumFromInt(ip.items.len - 1);
}
pub const GetFuncDeclKey = struct {
@@ -6375,7 +6373,7 @@ pub fn aggregateTypeLenIncludingSentinel(ip: *const InternPool, ty: Index) u64 {
};
}
pub fn funcReturnType(ip: *const InternPool, ty: Index) Index {
pub fn funcTypeReturnType(ip: *const InternPool, ty: Index) Index {
const item = ip.items.get(@intFromEnum(ty));
const child_item = switch (item.tag) {
.type_pointer => ip.items.get(ip.extra.items[