Add --placer option and refactor placer selection

Signed-off-by: David Shah <dave@ds0.me>

1 files changed, 19 insertions, 8 deletions

diff --git a/common/settings.h b/common/settings.h
index 0c4a67db..b57947c9 100644
--- a/common/settings.h
+++ b/common/settings.h
@@ -45,19 +45,30 @@ class Settings
         return defaultValue;
     }
 
-    template <typename T> void set(const char *name, T value)
-    {
-        IdString id = ctx->id(name);
-        auto pair = ctx->settings.emplace(id, std::to_string(value));
-        if (!pair.second) {
-            ctx->settings[pair.first->first] = value;
-        }
-    }
+    template <typename T> void set(const char *name, T value);
 
   private:
     Context *ctx;
 };
 
+template <typename T> inline void Settings::set(const char *name, T value)
+{
+    IdString id = ctx->id(name);
+    auto pair = ctx->settings.emplace(id, std::to_string(value));
+    if (!pair.second) {
+        ctx->settings[pair.first->first] = value;
+    }
+}
+
+template <> inline void Settings::set<std::string>(const char *name, std::string value)
+{
+    IdString id = ctx->id(name);
+    auto pair = ctx->settings.emplace(id, value);
+    if (!pair.second) {
+        ctx->settings[pair.first->first] = value;
+    }
+}
+
 NEXTPNR_NAMESPACE_END
 
 #endif // SETTINGS_H