Replace System.err and System.out with SLF4J Logging

[simantics/platform.git] / bundles / org.simantics.scl.compiler / src / org / simantics / scl / compiler / internal / parsing / types / TVarAst.java

diff --git a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/parsing/types/TVarAst.java b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/parsing/types/TVarAst.java
index e95b3ad9a9a4cdf21aab2abafa835b6457d013ad..cf5a7a862c45fa99a5cad9b5148a6ec586910585 100644 (file)
--- a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/parsing/types/TVarAst.java
+++ b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/parsing/types/TVarAst.java
@@ -11,6 +11,8 @@ import org.simantics.scl.compiler.types.Type;
 import org.simantics.scl.compiler.types.Types;
 import org.simantics.scl.compiler.types.kinds.Kind;
 import org.simantics.scl.compiler.types.kinds.Kinds;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import gnu.trove.map.hash.TObjectIntHashMap;
 import gnu.trove.set.hash.TIntHashSet;
@@ -20,7 +22,8 @@ import gnu.trove.set.hash.TIntHashSet;
  * This class represents an abstract syntax tree node for a type variable.
  * The only property of a type variable is its name.
  */
-public class TVarAst extends TypeAst {    
+public class TVarAst extends TypeAst {
+    private static final Logger LOGGER = LoggerFactory.getLogger(TVarAst.class);
     public final String name;
     
     public TVarAst(String name) {
@@ -56,6 +59,8 @@ public class TVarAst extends TypeAst {
             }
             else if(Character.isLowerCase(c))
                 return context.resolveTypeVariable(location, name, expectedKind);
+            else if(c == '?')
+                return context.resolveExistential(location, name, expectedKind);
             else {
                 TypeDescriptor tdesc;
                 try {
@@ -96,7 +101,7 @@ public class TVarAst extends TypeAst {
                     if(name.charAt(i) != ',') {
                         con = context.resolveTypeConstructor(name.substring(1, name.length()-1));
                         if(con == null) {
-                            System.err.println("Didn't find type constructor " + name + ".");
+                            LOGGER.warn("Didn't find type constructor " + name + ".");
                             return Types.metaVar(Kinds.STAR);
                         }
                         break block;
@@ -105,10 +110,12 @@ public class TVarAst extends TypeAst {
             }
             else if(Character.isLowerCase(c))
                 return context.resolveTypeVariable(name);
+            else if(c == '?')
+                return context.resolveExistential(name);
             else {                
                 con = context.resolveTypeConstructor(name);
                 if(con == null) {
-                    System.err.println("Didn't find type constructor " + name + ".");
+                    LOGGER.warn("Didn't find type constructor " + name + ".");
                     return Types.metaVar(Kinds.STAR);
                 }
             }
@@ -150,10 +157,12 @@ public class TVarAst extends TypeAst {
         char c = name.charAt(0);
         if(Character.isLowerCase(c))
             return context.resolveTypeVariable(name);
+        else if(c == '?')
+            return context.resolveExistential(name);
         else {
             Type con = context.resolveTypeConstructor(name);
             if(con == null) {
-                System.err.println("Didn't find effect constructor " + name + ".");
+                LOGGER.warn("Didn't find effect constructor " + name + ".");
                 return Types.metaVar(Kinds.EFFECT);
             }
             return con;