Initial Dever 0.0.1

test/performance/fixtures/json/app.dever

@@ -0,0 +1,56 @@
+type State {
+  source: Json
+  update: Bool
+  checksum: Int
+}
+
+run(source: Json, update: Bool, ticks: Text) (sample: Sample) {
+  input = dever.bytes.fromText(ticks)
+  initial = State {
+    source = source
+    update = update
+    checksum = 0
+  }
+  output = transform(source, update)
+  begin = dever.time.monotonicNanos()
+  final = reduce(step, input, initial)
+  end = dever.time.monotonicNanos()
+  sample = Sample {
+    elapsed_ns = end - begin
+    checksum = final.checksum
+    output = output
+  }
+}
+
+type Sample {
+  elapsed_ns: Int
+  checksum: Int
+  output: Text
+}
+
+step(unused: Int, state: State) (next: State) {
+  output = transform(state.source, state.update)
+  next = State {
+    source = state.source
+    update = state.update
+    checksum = state.checksum + length(dever.bytes.fromText(output))
+  }
+}
+
+transform(source: Json, update: false) (output: Text) {
+  output = selected(dever.json.propertyValue(source, "data"))
+}
+
+transform(source: Json, update: true) (output: Text) {
+  output = dever.json.toText(
+    dever.json.setProperty(source, "active", dever.json.boolean(true))
+  )
+}
+
+selected(value: Json) (output: Text) {
+  output = dever.json.toText(value)
+}
+
+selected(value: null) (output: Text) {
+  output = "null"
+}