From fa5db92c5ee7be17a1dbfc04c4a978c2725138ff Mon Sep 17 00:00:00 2001
From: David Walter Seikel
Date: Tue, 17 Jan 2012 16:38:32 +1000
Subject: Check variables, though not looking up function parameters yet.

---
 LuaSL/src/LuaSL_LSL_tree.h     |  1 +
 LuaSL/src/LuaSL_compile.c      | 11 +++++++++++
 LuaSL/src/LuaSL_lemon_yaccer.y |  2 +-
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/LuaSL/src/LuaSL_LSL_tree.h b/LuaSL/src/LuaSL_LSL_tree.h
index dee6263..2c2bfa6 100644
--- a/LuaSL/src/LuaSL_LSL_tree.h
+++ b/LuaSL/src/LuaSL_LSL_tree.h
@@ -286,6 +286,7 @@ LSL_Leaf *addTypecast(LSL_Leaf *lval, LSL_Leaf *type, LSL_Leaf *rval, LSL_Leaf *
 LSL_Leaf *addVariable(LuaSL_compiler *compiler, LSL_Leaf *type, LSL_Leaf *identifier, LSL_Leaf *assignment, LSL_Leaf *expr);
 
 void beginBlock(LuaSL_compiler *compiler, LSL_Leaf *block);
+LSL_Leaf *checkVariable(LuaSL_compiler *compiler, LSL_Leaf *identifier);
 LSL_Leaf *collectParameters(LSL_Leaf *list, LSL_Leaf *comma, LSL_Leaf *newParam);
 void endBlock(LuaSL_compiler *compiler, LSL_Leaf *block);
 
diff --git a/LuaSL/src/LuaSL_compile.c b/LuaSL/src/LuaSL_compile.c
index 65a8089..6d82fb6 100644
--- a/LuaSL/src/LuaSL_compile.c
+++ b/LuaSL/src/LuaSL_compile.c
@@ -230,6 +230,17 @@ static LSL_Leaf *findVariable(LuaSL_compiler *compiler, const char *name)
     return var;
 }
 
+LSL_Leaf *checkVariable(LuaSL_compiler *compiler, LSL_Leaf *identifier)
+{
+    gameGlobals *game = compiler->game;
+    LSL_Leaf *var = findVariable(compiler, identifier->value.stringValue);
+
+    if (NULL == var)
+	PE("NOT Found %s!", identifier->value.stringValue);
+
+    return var;
+}
+
 LSL_Leaf *addOperation(LuaSL_compiler *compiler, LSL_Leaf *left, LSL_Leaf *lval, LSL_Leaf *right)
 {
     gameGlobals *game = compiler->game;
diff --git a/LuaSL/src/LuaSL_lemon_yaccer.y b/LuaSL/src/LuaSL_lemon_yaccer.y
index 560c6ab..d5a6751 100644
--- a/LuaSL/src/LuaSL_lemon_yaccer.y
+++ b/LuaSL/src/LuaSL_lemon_yaccer.y
@@ -167,7 +167,7 @@ statement(A) ::= type(B) LSL_IDENTIFIER(C) LSL_STATEMENT(F).					{ A = addStatem
 
 %right LSL_DOT LSL_IDENTIFIER.
 identifier ::= identifier LSL_DOT LSL_IDENTIFIER.
-identifier(A) ::= LSL_IDENTIFIER(B).						{ A = B; }
+identifier(A) ::= LSL_IDENTIFIER(B).						{ A = checkVariable(compiler, B); }
 
 %right LSL_DECREMENT_PRE LSL_INCREMENT_PRE LSL_DECREMENT_POST LSL_INCREMENT_POST.
 expr ::= identifier LSL_DECREMENT_PRE.
-- 
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