fixed #794 - could not use variablename 'main'

Author: peq

de.peeeq.wurstscript/src/main/java/de/peeeq/wurstscript/translation/imoptimizer/RestrictedCompressedNames.java

@@ -4,7 +4,8 @@ public class RestrictedCompressedNames {
     static String names[] = {"div", "val", "var", "mod", "use", "new", "for", "in", "it", "to",
             "Sin", "Cos", "Tan", "Pow", "I2R", "R2I", "I2S", "R2S", "S2I", "S2R",
             "And", "Or", "Not", "or", "and", "not", "if", "set", "loop", "endif",
-            "endfunction", "endloop", "globals", "endglobals", "local", "call", "debug"};
+            "endfunction", "endloop", "globals", "endglobals", "local", "call", "debug",
+            "main", "config"};
 
     public static boolean contains(String s) {
         for (String name : names) {

de.peeeq.wurstscript/src/main/java/de/peeeq/wurstscript/translation/imtojass/ImToJassTranslator.java

@@ -241,7 +241,11 @@ public JassFunctionOrNative getJassFuncFor(ImFunction func) {
                     prog.getNatives().add((JassNative) f);
                 }
             } else {
-                String name = getUniqueGlobalName(func.getName());
+                String name = func.getName();
+                // find a unique name, but keep special names 'main' and 'config'
+                if (!name.equals("main") && !name.equals("config")) {
+                    name = getUniqueGlobalName(func.getName());
+                }
                 boolean isCompiletimeNative = func.hasFlag(FunctionFlagEnum.IS_COMPILETIME_NATIVE);
                 f = JassFunction(name, JassSimpleVars(), "nothing", JassVars(), JassStatements(), isCompiletimeNative);
                 if (!func.isBj() && !func.isExtern()) {

de.peeeq.wurstscript/src/test/java/tests/wurstscript/tests/ClosureTests.java

@@ -810,4 +810,19 @@ public void testOverloadingConstructorClosureUse() {
         );
     }
 
+    @Test
+    public void closureCaptureMain() {
+        testAssertOkLines(true,
+                "package test",
+                "native testSuccess()",
+                "interface SimpleFunc",
+                "	function apply(int x) returns int",
+                "init",
+                "	int main = 4",
+                "	SimpleFunc f = (int x) -> x + main",
+                "	if f.apply(3) == 7",
+                "		testSuccess()"
+        );
+    }
+
 }