go port

tron/values.go

@@ -0,0 +1,53 @@
+package tron
+
+import (
+  "encoding/json"
+  "fmt"
+  "strconv"
+)
+
+// ValueString coerces a decoded JSON value to a string. It handles the
+// json.Number type produced when decoding with UseNumber so large integers are
+// preserved exactly.
+func ValueString(v any) string {
+  switch x := v.(type) {
+  case nil:
+    return ""
+  case string:
+    return x
+  case json.Number:
+    return x.String()
+  case float64:
+    return strconv.FormatFloat(x, 'f', -1, 64)
+  case bool:
+    if x {
+      return "true"
+    }
+    return "false"
+  default:
+    return fmt.Sprintf("%v", x)
+  }
+}
+
+// ValueInt64 coerces a decoded JSON value to an int64. Missing or non-numeric
+// values yield 0, matching Python's treatment of absent dict keys.
+func ValueInt64(v any) int64 {
+  switch x := v.(type) {
+  case json.Number:
+    if i, err := x.Int64(); err == nil {
+      return i
+    }
+    f, _ := x.Float64()
+    return int64(f)
+  case float64:
+    return int64(x)
+  case int64:
+    return x
+  case int:
+    return int64(x)
+  case string:
+    i, _ := strconv.ParseInt(x, 10, 64)
+    return i
+  }
+  return 0
+}