Made function jumps absolute

src/frontend/compiler.nim

@@ -271,7 +271,6 @@ proc patchJump(self: Compiler, offset: int) =
     if jump > 16777215:
         self.error("cannot jump more than 16777216 bytecode instructions")
     if jump < uint16.high().int:
-        jump -= 3
         case OpCode(self.chunk.code[offset]):
             of LongJumpForwards:
                 self.chunk.code[offset] = JumpForwards.uint8()
@@ -290,7 +289,6 @@ proc patchJump(self: Compiler, offset: int) =
         self.chunk.code[offset + 1] = offsetArray[0]
         self.chunk.code[offset + 2] = offsetArray[1]
     else:
-        jump -= 4
         case OpCode(self.chunk.code[offset]):
             of JumpForwards:
                 self.chunk.code[offset] = LongJumpForwards.uint8()
@@ -773,7 +771,7 @@ proc declareName(self: Compiler, node: Declaration) =
                                     isLet: false))
                 self.names[^1].valueType = self.inferType(argument.valueType)
                 self.names[^1].valueType.node = argument.name
-                self.emitByte(StoreVar)
+                self.emitByte(LoadVar)
                 self.emitBytes(self.names.high().toTriple())
         else:
             discard  # Unreachable
@@ -1181,6 +1179,10 @@ proc varDecl(self: Compiler, node: VarDecl) =
 
 proc funDecl(self: Compiler, node: FunDecl) =
     ## Compiles function declarations
+
+    # A function's code is just compiled linearly
+    # and then jumped over
+    let jmp = self.emitJump(Jump)
     self.declareName(node)
     if node.body != nil:
         if BlockStmt(node.body).code.len() == 0:
@@ -1199,9 +1201,6 @@ proc funDecl(self: Compiler, node: FunDecl) =
     # We store the current function
     var function = self.currentFunction
     self.currentFunction = node
-    # A function's code is just compiled linearly
-    # and then jumped over
-    let jmp = self.emitJump(JumpForwards)
 
     # Since the deferred array is a linear 
     # sequence of instructions and we want

src/frontend/meta/bytecode.nim

@@ -159,7 +159,7 @@ const stackDoubleInstructions* = {}
 const argumentDoubleInstructions* = {PopN, }
 
 # Jump instructions jump at relative or absolute bytecode offsets
-const jumpInstructions* = {JumpIfFalse, JumpIfFalsePop, 
+const jumpInstructions* = {Jump, LongJump, JumpIfFalse, JumpIfFalsePop, 
                            JumpForwards, JumpBackwards,
                            LongJumpIfFalse, LongJumpIfFalsePop,
                            LongJumpForwards, LongJumpBackwards, 

src/test.nim

@@ -24,7 +24,7 @@ proc getLineEditor: LineEditor
 
 # Handy dandy compile-time constants
 const debugLexer = false
-const debugParser = false
+const debugParser = true
 const debugCompiler = true
 const debugSerializer = false
 const debugRuntime = false