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https://github.com/logos-co/logos-cpp-sdk.git
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Dario Lipicar
e8966bf7a9
* fix(codegen): pack Qt client args as one element each, not a spread list
The generated Qt client wrapper packed a method's arguments with
`QVariantList{a, b, ...}` (sync) and `QVariantList{...}` / `QVariantList() << a`
(async). For a QVariantList-typed argument -- every `[T]` list type (`[any]`,
`[int]`, `[uint]`, `[float64]`, `[bool]`) -- a braced `QVariantList{v}` and
`<< v` both CONCATENATE the list's elements into the args list, so
`echoList([1,2,3])` went out as three positional args instead of one array arg.
The receiver saw an arg-count mismatch and the list round-tripped empty; through
a UI->proxy->provider 2-hop it hung the call outright. This is the long-standing
"typed arrays empty over the Qt path" bug.
Fix both generators that emit the Qt client:
- legacy `generator_lib.cpp` (the production `logos-cpp-generator`): wrap each
arg in `QVariant::fromValue(...)` in the sync and async call sites.
- experimental `lidl_gen_client.cpp`: route both paths through the existing
`packVariantList` helper (which already wraps with `QVariant::fromValue`), the
same helper the event `trigger` path uses.
`QVariant::fromValue` does not double-wrap an already-QVariant (`any`) arg, and
scalars/QString/QVariantMap/QByteArray were never affected (they don't
concatenate). Empirically: `QVariantList{v}` / `<< v` give size 3 for a 3-element
list; the wrapped forms give size 1.
Tests: legacy generator_tests gain ListArgWrappedAsOneElement and update the
param-packing assertions to the wrapped form; experimental gains
ListArgIsPackedAsOneElement. 167/167 green.
* fix(codegen): pass `any` (QVariant) return through raw in the lp wrapper
The Qt-free (lp) client generator maps both `any` (QVariant) and the `{tstr:any}`
map (QVariantMap) to the same `LogosMap` std type, and decoded a `LogosMap`
return as `jv.is_object() ? jv : LogosMap::object()`. For a genuine map that is
a no-op, but for `any` it collapsed every NON-object value (a string, a number,
an array) to an empty object `{}`. A universal proxy forwarding `echoAny("x")`
through this wrapper therefore returned `{}` instead of `"x"` — the concrete
cross-version blocker (the UI's runMethods verified echoAny and got FAIL:echoAny
through the 2-hop).
`lpFromJsonExpr` still receives the original Qt type, so it can tell `any`
(mapReturnType == "QVariant") from the map (QVariantMap): pass `any` through
unchanged, keep the object coercion only for the map.
Test: MakeSourceTest.LpAnyReturnPassesThroughButMapForcesObject.
With this + the arg-spread fix, a UI drives the full method surface (incl.
echoAny and every array type) through a universal proxy 2-hop end to end.