1 files changed, 58 insertions, 0 deletions
diff --git a/rpc/api/args.go b/rpc/api/args.go
new file mode 100644
index 000000000..fc85448e6
--- /dev/null
+++ b/rpc/api/args.go
@@ -0,0 +1,58 @@
+package api
+
+import (
+	"encoding/json"
+
+	"github.com/ethereum/go-ethereum/rpc/shared"
+)
+
+type CompileArgs struct {
+	Source string
+}
+
+func (args *CompileArgs) UnmarshalJSON(b []byte) (err error) {
+	var obj []interface{}
+	if err := json.Unmarshal(b, &obj); err != nil {
+		return shared.NewDecodeParamError(err.Error())
+	}
+
+	if len(obj) < 1 {
+		return shared.NewInsufficientParamsError(len(obj), 1)
+	}
+	argstr, ok := obj[0].(string)
+	if !ok {
+		return shared.NewInvalidTypeError("arg0", "is not a string")
+	}
+	args.Source = argstr
+
+	return nil
+}
+
+type FilterStringArgs struct {
+	Word string
+}
+
+func (args *FilterStringArgs) UnmarshalJSON(b []byte) (err error) {
+	var obj []interface{}
+	if err := json.Unmarshal(b, &obj); err != nil {
+		return shared.NewDecodeParamError(err.Error())
+	}
+
+	if len(obj) < 1 {
+		return shared.NewInsufficientParamsError(len(obj), 1)
+	}
+
+	var argstr string
+	argstr, ok := obj[0].(string)
+	if !ok {
+		return shared.NewInvalidTypeError("filter", "not a string")
+	}
+	switch argstr {
+	case "latest", "pending":
+		break
+	default:
+		return shared.NewValidationError("Word", "Must be `latest` or `pending`")
+	}
+	args.Word = argstr
+	return nil
+}