Files
mesh-host/internal/compose/resolution/laid_values.go
T
jschoubben d68e241724 Take the catalogue's composition rules into the node-engine
ADR 0593 §7: the composer with its refusals leaves mesh-sdk, so mesh-sdk
carries no composition rule. The catalogue functions only the
node-engine's composition reaches (Resolve, Resolution's Compose,
Declaration, DataItems, LeftOut, Rules and the rest, the settings,
placeholder and template refusals, the rendering helpers) are copied
with their tests into internal/compose/resolution; a method of a
mesh-sdk shape becomes a function taking it first. The composition
calls its own copies, and the captured catalogue its tests read lives
here now, shared by mesh-compose's tests.

Claude-Session: https://claude.ai/code/session_01NcbgfJ9Gum47zkFKWRaovL
2026-11-02 19:15:55 +01:00

39 lines
1.4 KiB
Go

package resolution
import (
"encoding/json"
mcat "git.novox.be/novox/mesh-sdk/go/catalogue"
)
// LaidSource says whether a value resolved from source is laid over a module's files: mesh config, node config and the
// module's own value are; a manifest's default is not, since it is the composition's already and a taken key is laid
// only when a layer sets it, never from a default (TakesSettingsField); an unset value is not, since a required one is
// refused by the composition by name. **The one rule for every composer** (issue 1126, C2): the controller's config
// read and a node composing its own lay the same values, so the two compose the same files.
func LaidSource(source string) bool {
switch source {
case mcat.SourceMesh, mcat.SourceNode, mcat.SourceModule:
return true
}
return false
}
// LaidValue is one key of mesh-config_resolved read as a composer lays it: its value, and true when its source is laid
// (LaidSource) and it holds a value; false for a default, an unset value, a source not known and a value that cannot be
// read.
func LaidValue(raw []byte) (any, bool) {
var r struct {
Value json.RawMessage `json:"value"`
Source string `json:"source"`
}
if json.Unmarshal(raw, &r) != nil || !LaidSource(r.Source) || len(r.Value) == 0 {
return nil, false
}
var v any
if json.Unmarshal(r.Value, &v) != nil {
return nil, false
}
return v, true
}