Parser

- Implemented `tryParseExpression(ref Expression expression)`
tbklang · May 21, 2024 · 39772d8 · 39772d8
1 parent 43d9b09
commit 39772d8
Showing 1 changed file with 31 additions and 0 deletions.
diff --git a/source/tlang/compiler/parsing/core.d b/source/tlang/compiler/parsing/core.d
@@ -1567,6 +1567,31 @@ public final class Parser
         return retExpression[0];
     }
 
+    /** 
+     * Attempts to parse an expression, however,
+     * if there is any error then this is simply
+     * returned as a boolean flag rather than
+     * the entire process crashing
+     *
+     * Params:
+     *   expression = the found expression, in
+     * the case of no errors
+     * Returns: `true` if an expression parsed
+     * successfully, `false` otherwise
+     */
+    private bool tryParseExpression(ref Expression expression)
+    {
+        try
+        {
+            expression = parseExpression();
+            return true;
+        }
+        catch(ParserException e)
+        {
+            return false;
+        }
+    }
+
     // FIXME: This should STILL work pre-dot and post-dot fixeup
     private string parseTypeNameOnly()
     {
@@ -1609,6 +1634,9 @@ public final class Parser
         Statement generated;
 
 
+        ulong entrancePos = lexer.getCursor();
+
+
         /* TODO: Save type */
         string type = parseTypeNameOnly();
         DEBUG(format("tryParseName: %s", type));
@@ -1736,6 +1764,9 @@ public final class Parser
         DEBUG("ParseTypedDec: SymbolType=" ~ to!(string)(symbolType));
         if (symbolType == SymbolType.LBRACE)
         {
+            // FIXME: Rewind to `entrancePos` here and then capture the name as an Expression
+
+
             // Only continue is function definitions are allowed
             if(allowFuncDef)
             {