From f3d83a4516eb9c6658a7c3e07bf1b7d4f4996bef Mon Sep 17 00:00:00 2001
From: ShadowNinja <shadowninja@minetest.net>
Date: Sat, 15 Mar 2014 17:20:52 -0400
Subject: Add more informative error messages for inventory and item method
 errors

---
 src/script/cpp_api/s_item.cpp | 45 +++++++++++++++++++++++++++++++++----------
 1 file changed, 35 insertions(+), 10 deletions(-)

(limited to 'src/script/cpp_api/s_item.cpp')

diff --git a/src/script/cpp_api/s_item.cpp b/src/script/cpp_api/s_item.cpp
index 49729e57b..41413d61c 100644
--- a/src/script/cpp_api/s_item.cpp
+++ b/src/script/cpp_api/s_item.cpp
@@ -47,8 +47,13 @@ bool ScriptApiItem::item_OnDrop(ItemStack &item,
 	pushFloatPos(L, pos);
 	if(lua_pcall(L, 3, 1, errorhandler))
 		scriptError();
-	if(!lua_isnil(L, -1))
-		item = read_item(L,-1, getServer());
+	if(!lua_isnil(L, -1)) {
+		try {
+			item = read_item(L,-1, getServer());
+		} catch (LuaError &e) {
+			throw LuaError(std::string(e.what()) + ". item=" + item.name);
+		}
+	}
 	lua_pop(L, 2);  // Pop item and error handler
 	return true;
 }
@@ -71,8 +76,13 @@ bool ScriptApiItem::item_OnPlace(ItemStack &item,
 	pushPointedThing(pointed);
 	if(lua_pcall(L, 3, 1, errorhandler))
 		scriptError();
-	if(!lua_isnil(L, -1))
-		item = read_item(L,-1, getServer());
+	if(!lua_isnil(L, -1)) {
+		try {
+			item = read_item(L,-1, getServer());
+		} catch (LuaError &e) {
+			throw LuaError(std::string(e.what()) + ". item=" + item.name);
+		}
+	}
 	lua_pop(L, 2);  // Pop item and error handler
 	return true;
 }
@@ -95,8 +105,13 @@ bool ScriptApiItem::item_OnUse(ItemStack &item,
 	pushPointedThing(pointed);
 	if(lua_pcall(L, 3, 1, errorhandler))
 		scriptError();
-	if(!lua_isnil(L, -1))
-		item = read_item(L,-1, getServer());
+	if(!lua_isnil(L, -1)) {
+		try {
+			item = read_item(L,-1, getServer());
+		} catch (LuaError &e) {
+			throw LuaError(std::string(e.what()) + ". item=" + item.name);
+		}
+	}
 	lua_pop(L, 2);  // Pop item and error handler
 	return true;
 }
@@ -123,8 +138,13 @@ bool ScriptApiItem::item_OnCraft(ItemStack &item, ServerActiveObject *user,
 	InvRef::create(L, craft_inv);
 	if(lua_pcall(L, 4, 1, errorhandler))
 		scriptError();
-	if(!lua_isnil(L, -1))
-		item = read_item(L,-1, getServer());
+	if(!lua_isnil(L, -1)) {
+		try {
+			item = read_item(L,-1, getServer());
+		} catch (LuaError &e) {
+			throw LuaError(std::string(e.what()) + ". item=" + item.name);
+		}
+	}
 	lua_pop(L, 2);  // Pop item and error handler
 	return true;
 }
@@ -151,8 +171,13 @@ bool ScriptApiItem::item_CraftPredict(ItemStack &item, ServerActiveObject *user,
 	InvRef::create(L, craft_inv);
 	if(lua_pcall(L, 4, 1, errorhandler))
 		scriptError();
-	if(!lua_isnil(L, -1))
-		item = read_item(L,-1, getServer());
+	if(!lua_isnil(L, -1)) {
+		try {
+			item = read_item(L,-1, getServer());
+		} catch (LuaError &e) {
+			throw LuaError(std::string(e.what()) + ". item=" + item.name);
+		}
+	}
 	lua_pop(L, 2);  // Pop item and error handler
 	return true;
 }
-- 
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