Minor fixes and changes

src/backend/vm.nim

@@ -118,13 +118,13 @@ proc reallocate*(self: var PeonVM, p: pointer, oldSize: int, newSize: int): poin
     ## built-in garbage collection
     self.gc.bytesAllocated.current += newSize - oldSize
     try:
-        if newSize == 0 and not p.isNil():
-            when debugMem:
+        when debugMem:
+            if newSize == 0 and not p.isNil():
                 if oldSize > 1:
                     echo &"DEBUG - MM: Deallocating {oldSize} bytes of memory"
                 else:
                     echo "DEBUG - MM: Deallocating 1 byte of memory"
-        elif (oldSize > 0 and not p.isNil() and newSize > oldSize) or oldSize == 0:
+        if (oldSize > 0 and not p.isNil() and newSize > oldSize) or oldSize == 0:
             when debugMem:
                 if oldSize == 0:
                     if newSize > 1:
@@ -332,6 +332,9 @@ proc collect(self: var PeonVM) =
         let before = self.gc.bytesAllocated.current
         let time = getMonoTime().ticks().float() / 1_000_000
         echo &"DEBUG - GC: Starting collection cycle at heap size {self.gc.bytesAllocated.current}"
+        echo &"DEBUG - GC: Total bytes allocated: {self.gc.bytesAllocated.total}"
+        echo &"DEBUG - GC: Tracked objects: {self.gc.pointers.len()}"
+        echo &"DEBUG - GC: Completed GC cycles: {self.gc.cycles}"
         inc(self.gc.cycles)
     self.trace(self.markRoots())
     self.sweep()
@@ -339,7 +342,9 @@ proc collect(self: var PeonVM) =
     when debugGC:
         echo &"DEBUG - GC: Collection cycle has terminated in {getMonoTime().ticks().float() / 1_000_000 - time:.2f} ms, collected {before - self.gc.bytesAllocated.current} bytes of memory in total"
         echo &"DEBUG - GC: Next cycle at {self.gc.nextGC} bytes"
-
+        echo &"DEBUG - GC: Total bytes allocated: {self.gc.bytesAllocated.total}"
+        echo &"DEBUG - GC: Tracked objects: {self.gc.pointers.len()}"
+        echo &"DEBUG - GC: Completed GC cycles: {self.gc.cycles}"
 
 # Implementation of the peon VM
 

src/config.nim

@@ -26,7 +26,7 @@ const debugSerializer* {.booldefine.} = false  # Validate the bytecode serialize
 const debugStressGC* {.booldefine.} = false    # Make the GC run a collection at every allocation (VERY SLOW!)
 const PeonBytecodeMarker* = "PEON_BYTECODE"    # Magic value at the beginning of bytecode files
 const HeapGrowFactor* = 2                      # The growth factor used by the GC to schedule the next collection
-const FirstGC* = 1024;                         # How many bytes to allocate before running the first GC
+const FirstGC* = 1024 * 1024;                  # How many bytes to allocate before running the first GC
 const enableVMChecks* {.booldefine.} = true;   # Enables all types of compiler (nim-wise) checks in the VM
 # List of paths where peon looks for modules, in order (empty path means current directory, which always takes precedence)
 const moduleLookupPaths*: seq[string] = @["", "src/peon/stdlib"]

src/frontend/compiler.nim

@@ -1172,7 +1172,6 @@ proc match(self: Compiler, name: string, kind: Type, node: ASTNode = nil, allowF
             msg = &"call to undefined function '{name}'"
         self.error(msg, node)
     elif impl.len() > 1:
-        # Forward declarations don't count when looking for a function
         impl = filterIt(impl, not it.valueType.forwarded and not it.valueType.isAuto)
         if impl.len() > 1:
             # If it's *still* more than one match, then it's an error
@@ -1327,7 +1326,6 @@ proc beginScope(self: Compiler) =
     inc(self.depth)
 
 
-
 proc patchForwardDeclarations(self: Compiler) =
     ## Patches forward declarations and looks
     ## for their implementations so that calls

tests/fib.pn

@@ -11,6 +11,6 @@ fn fib(n: int): int {
 
 print("Computing the value of fib(37)");
 var x = clock();
-print(fib(33));
+print(fib(37));
 print(clock() - x);
 print("Done!");

tests/generics.pn

@@ -7,6 +7,6 @@ fn sum[T: int | int32](a, b: T): T {
 }
 
 
-print(sum(1, 2));   # Prints 3
-print(sum(1'i32, 2'i32));   # Also prints 3!
+print(sum(1, 2) == 3);   # true
+print(sum(1'i32, 2'i32) == 3'i32);   # true
 #print(sum(1.0, 2.0));   # Will fail to compile

tests/nestedCalls.pn

@@ -18,5 +18,5 @@ fn outerTwo(n: int): int {
 }
 
 
-print(outerTwo(5));  # 5
-#outer();  # 69420
+print(outerTwo(5) == 5);  # true
+print(outer() == 69420);  # 69420

tests/operators.pn

@@ -7,4 +7,4 @@ operator `sum`(a, b: int): int {
 }    
 
 
-print(2 sum 2);  # 4
+print(2 sum 2 == 4);  # 4