Added stringEmpty and arrayEmpty to MetaModelica.

Compiler/FrontEnd/DAEDump.mo

@@ -566,7 +566,6 @@ algorithm
   outString := matchcontinue (inVariableAttributesOption)
     local
       String quantity,unit_str,displayUnit_str,stateSel_str,min_str,max_str,nominal_str,initial_str,fixed_str,uncertainty_str,dist_str,res_1,res1,res,startOriginStr;
-      Boolean is_empty;
       Option<DAE.Exp> quant,unit,displayUnit,min,max,initialExp,nominal,fixed,startOrigin;
       Option<DAE.StateSelect> stateSel;
       Option<DAE.Uncertainty> uncertainty;
@@ -591,8 +590,7 @@ algorithm
         res_1 = Util.stringDelimitListNonEmptyElts(
           {quantity,unit_str,displayUnit_str,min_str,max_str,
           initial_str,fixed_str,nominal_str,stateSel_str,uncertainty_str,dist_str,startOriginStr}, ", ");
-        is_empty = Util.isEmptyString(res_1);
-        res = if is_empty then "" else stringAppendList({"(",res_1,")"});
+        res = if stringEmpty(res_1) then "" else stringAppendList({"(",res_1,")"});
       then
         res;
 
@@ -609,8 +607,7 @@ algorithm
         startOriginStr = getStartOrigin(startOrigin);
 
         res_1 = Util.stringDelimitListNonEmptyElts({quantity,min_str,max_str,initial_str,fixed_str,uncertainty_str,dist_str,startOriginStr}, ", ");
-        is_empty = Util.isEmptyString(res_1);
-        res = if is_empty then "" else stringAppendList({"(",res_1,")"});
+        res = if stringEmpty(res_1) then "" else stringAppendList({"(",res_1,")"});
       then
         res;
 
@@ -623,8 +620,7 @@ algorithm
         startOriginStr = getStartOrigin(startOrigin);
 
         res_1 = Util.stringDelimitListNonEmptyElts({quantity,initial_str,fixed_str,startOriginStr}, ", ");
-        is_empty = Util.isEmptyString(res_1);
-        res = if is_empty then "" else stringAppendList({"(",res_1,")"});
+        res = if stringEmpty(res_1) then "" else stringAppendList({"(",res_1,")"});
       then
         res;
 
@@ -636,8 +632,7 @@ algorithm
         startOriginStr = getStartOrigin(startOrigin);
 
         res_1 = Util.stringDelimitListNonEmptyElts({quantity,initial_str,startOriginStr}, ", ");
-        is_empty = Util.isEmptyString(res_1);
-        res = if is_empty then "" else stringAppendList({"(",res_1,")"});
+        res = if stringEmpty(res_1) then "" else stringAppendList({"(",res_1,")"});
       then
         res;
 
@@ -652,8 +647,7 @@ algorithm
         startOriginStr = getStartOrigin(startOrigin);
 
         res_1 = Util.stringDelimitListNonEmptyElts({quantity,min_str,max_str,initial_str,fixed_str,startOriginStr}, ", ");
-        is_empty = Util.isEmptyString(res_1);
-        res = if is_empty then "" else stringAppendList({"(",res_1,")"});
+        res = if stringEmpty(res_1) then "" else stringAppendList({"(",res_1,")"});
       then
         res;
 

Compiler/FrontEnd/MetaModelicaBuiltin.mo

@@ -490,6 +490,14 @@ function stringLength "O(1)"
 external "builtin";
 end stringLength;
 
+function stringEmpty "O(1)"
+  input String str;
+  output Boolean isEmpty;
+algorithm
+  isEmpty := stringLength(str) == 0;
+  annotation(__OpenModelica_EarlyInline = true, __OpenModelica_BuiltinPtr = true);
+end stringEmpty;
+
 function stringGet "O(1)"
   input String str;
   input Integer index;
@@ -652,6 +660,14 @@ function arrayLength<A> "O(1)"
 external "builtin";
 end arrayLength;
 
+function arrayEmpty<A> "O(1)"
+  input array<A> arr;
+  output Boolean isEmpty;
+algorithm
+  isEmpty := arrayLength(str) == 0;
+  annotation(__OpenModelica_EarlyInline = true, __OpenModelica_BuiltinPtr = true);
+end arrayEmpty;
+
 function arrayGet<A> "O(1)"
   input array<A> arr;
   input Integer index;

Compiler/FrontEnd/Mod.mo

@@ -2264,7 +2264,6 @@ algorithm
     case((DAE.NAMEMOD(id,m))::_,_)
       equation
         s2  = prettyPrintMod(m,depth+1);
-        s2 = if stringLength(s2) == 0 then "" else s2;
         s2 = "(" + id + s2 + "), class or component " + id;
       then
         s2;
@@ -2297,7 +2296,6 @@ algorithm
     case DAE.NAMEMOD(id,m)
       equation
         s2  = prettyPrintMod(m,0);
-        s2 = if stringLength(s2) == 0 then "" else s2;
         s2 = id + s2;
       then
         s2;

Compiler/Main/Main.mo

@@ -600,7 +600,7 @@ algorithm
   cls := Config.classToInstantiate();
   // If no class was explicitly specified, instantiate the last class in the
   // program. Otherwise, instantiate the given class name.
-  cname := if stringLength(cls) == 0 then Absyn.lastClassname(program) else Absyn.stringPath(cls);
+  cname := if stringEmpty(cls) then Absyn.lastClassname(program) else Absyn.stringPath(cls);
   st := GlobalScriptUtil.setSymbolTableAST(GlobalScript.emptySymboltable, program);
   (cache, env, dae) := CevalScriptBackend.runFrontEnd(FCore.emptyCache(), FGraph.empty(), cname, st, true);
 end instantiate;

Compiler/Script/CevalScript.mo

@@ -247,12 +247,12 @@ algorithm
     //        to the environment variable! Don't ask me why, ask Microsoft.
     omhome := "set OPENMODELICAHOME=\"" + System.stringReplace(omhome_1, "/", "\\") + "\"&& ";
     setMakeVars := sum("set "+var+"&& " for var in makeVarsNoBinding);
-    cdWorkingDir := if stringLength(workingDir) == 0 then "" else ("cd \"" + workingDir + "\"&& ");
+    cdWorkingDir := if stringEmpty(workingDir) then "" else ("cd \"" + workingDir + "\"&& ");
     winCompileMode := if Config.getRunningTestsuite() then "serial" else "parallel";
     s_call := stringAppendList({omhome,cdWorkingDir,setMakeVars,"\"",omhome_1,pd,"share",pd,"omc",pd,"scripts",pd,"Compile","\""," ",fileprefix," ",Config.simulationCodeTarget()," ", System.openModelicaPlatform(), " ", winCompileMode});
   else
     numParallel := if Config.getRunningTestsuite() then 1 else Config.noProc();
-    cdWorkingDir := if stringLength(workingDir) == 0 then "" else (" -C \"" + workingDir + "\"");
+    cdWorkingDir := if stringEmpty(workingDir) then "" else (" -C \"" + workingDir + "\"");
     setMakeVars := sum(" "+var for var in makeVarsNoBinding);
     s_call := stringAppendList({System.getMakeCommand()," -j",intString(numParallel),cdWorkingDir," -f ",fileprefix,".makefile",setMakeVars});
   end if;

Compiler/Util/Util.mo

@@ -943,12 +943,6 @@ public function boolCompare
   output Integer outResult = if inN == inM then 0 elseif inN > inM then 1 else -1;
 end boolCompare;
 
-public function isEmptyString
-  "Returns true if string is the empty string."
-  input String inString;
-  output Boolean outIsEmpty = stringLength(inString) == 0;
-end isEmptyString;
-
 public function isNotEmptyString "Returns true if string is not the empty string."
   input String inString;
   output Boolean outIsNotEmpty = stringLength(inString) > 0;