Remove code made obsolete with type checking.

src/chalk/builtin.cr

@@ -4,11 +4,8 @@ module Chalk
     # that is provided by chalk's standard library, and therefore
     # has predefined output.
     abstract class BuiltinFunction
-      # Gets the number of parameters this function has.
-      getter param_count : Int32
-
       # Creates a new function with *param_count* parameters.
-      def initialize(@param_count)
+      def initialize()
       end
 
       # Uses the given `Compiler::Emitter` to output code.
@@ -22,11 +19,8 @@ module Chalk
     # function also accepts trees rather than register numbers,
     # and therefore can accept and manipulate trees.
     abstract class InlineFunction
-      # Gets the number of parameters this function has.
-      getter param_count : Int32
-
       # Creates a new function with *param_count* parameters.
-      def initialize(@param_count)
+      def initialize()
       end
 
       # Generates code like `Compiler::CodeGenerator` would.

src/chalk/codegen.cr

@@ -96,12 +96,9 @@ module Chalk
           generate! tree.right, table, free, free + 1
           opr tree.op, target, free
         when Trees::TreeCall
-          entry = table[tree.name]?
+          entry = table[tree.name]?.not_nil!
-          raise "Unknown function" unless entry &&
+          raise "Unknown function" unless entry.is_a?(FunctionEntry)
-                                          entry.is_a?(FunctionEntry)
+          generate! tree, entry.function, table, target, free
-          function = entry.function
-          raise "Invalid call" if tree.params.size != function.param_count
-          generate! tree, function, table, target, free
         when Trees::TreeBlock
           table = Table.new(table)
           tree.children.each do |child|

src/chalk/inline.cr

@@ -5,10 +5,6 @@ module Chalk
   module Builtin
     # Inline function to draw sprite at address I.
     class InlineDrawFunction < InlineFunction
-      def initialize
-        @param_count = 3
-      end
-
       def generate!(emitter, params, table, target, free)
         if !params[2].is_a?(Trees::TreeLit)
           raise "Third parameter must be a constant."
@@ -24,10 +20,6 @@ module Chalk
 
     # Inline function to await for a key and return it.
     class InlineAwaitKeyFunction < InlineFunction
-      def initialize
-        @param_count = 0
-      end
-
       def generate!(emitter, params, table, target, free)
         emitter.instructions << Ir::AwaitKeyInstruction.new target
       end
@@ -38,10 +30,6 @@ module Chalk
 
     # Inline function to get font for a given value.
     class InlineGetFontFunction < InlineFunction
-      def initialize
-        @param_count = 1
-      end
-
       def generate!(emitter, params, table, target, free)
         emitter.generate! params[0], table, free, free + 1
         emitter.instructions << Ir::GetFontInstruction.new free
@@ -53,14 +41,11 @@ module Chalk
 
     # Inline function to set the delay timer.
     class InlineSetDelayFunction < InlineFunction
-      def initialize
-        @param_count = 1
-      end
-
       def generate!(emitter, params, table, target, free)
         emitter.generate! params[0], table, free, free + 1
         emitter.instructions << Ir::SetDelayTimerInstruction.new free
       end
+
       def type
           return Compiler::FunctionType.new([Compiler::Type::U8], Compiler::Type::U0)
       end
@@ -68,10 +53,6 @@ module Chalk
 
     # Inline function to get the delay timer.
     class InlineGetDelayFunction < InlineFunction
-      def initialize
-        @param_count = 0
-      end
-
       def generate!(emitter, params, table, target, free)
         emitter.instructions << Ir::GetDelayTimerInstruction.new target
       end