Rendering nice unicode arrow for function types in UI.

2012-12-27 14:14:13 +04:00
parent c483a7f7cd
commit bc9f5da47e
4 changed files with 16 additions and 5 deletions
@@ -116,6 +116,17 @@ public class DescriptorRendererImpl implements DescriptorRenderer {
        return escape("<");
    }

+    @NotNull
+    private String arrow() {
+        switch (textFormat) {
+            case PLAIN:
+                return escape("->");
+            case HTML:
+                return "&rarr;";
+        }
+        throw new IllegalStateException("Unexpected textFormat: " + textFormat);
+    }
+
    @NotNull
    private String renderMessage(@NotNull String message) {
        switch (textFormat) {
@@ -188,7 +199,7 @@ public class DescriptorRendererImpl implements DescriptorRenderer {
            return "???";
        }
        else if (type == CallResolverUtil.PLACEHOLDER_FUNCTION_TYPE) {
-            return "??? -> ???";
+            return "??? " + arrow() + " ???";
        }
        else if (ErrorUtils.isErrorType(type)) {
            return type.toString();
@@ -258,7 +269,7 @@ public class DescriptorRendererImpl implements DescriptorRenderer {

        sb.append("(");
        appendTypeProjections(KotlinBuiltIns.getInstance().getParameterTypeProjectionsFromFunctionType(type), sb);
-        sb.append(") -> ");
+        sb.append(") " + arrow() + " ");
        sb.append(renderType(KotlinBuiltIns.getInstance().getReturnTypeFromFunctionType(type)));

        if (type.isNullable()) {