Class: KoiReferenceCompiler::FunctionCall

Inherits:
SyntaxNode
  • Object
show all
Defined in:
lib/koi-reference-compiler/node_extensions/functions/function_call.rb

Instance Attribute Summary

Attributes inherited from SyntaxNode

#elements, #offset, #parent, #text_value

Instance Method Summary collapse

Methods inherited from SyntaxNode

#initialize

Constructor Details

This class inherits a constructor from KoiReferenceCompiler::SyntaxNode

Instance Method Details

#compile ⇒ Object 



4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
 
# File 'lib/koi-reference-compiler/node_extensions/functions/function_call.rb', line 4

def compile
  number_of_arguments = self.elements.length - 1

  bytecode = []
  bytecode.concat( self.elements[2].compile ) if(number_of_arguments > 1)
  bytecode.concat( self.elements[1].compile ) if(number_of_arguments > 0)
  
  function_name = self.elements.first.text_value
  
  if( function_name == "print")
    raise_error unless(number_of_arguments == 1)
    bytecode << PRINT
    
  elsif( function_name == "gets")
    raise_error unless(number_of_arguments == 0)
    bytecode << GETS
    
  elsif( function_name == "call")
    raise_error unless(number_of_arguments == 2)
    bytecode << CALL
    
  elsif( function_name == "tailcall")
    raise_error unless(number_of_arguments == 1 || number_of_arguments == 2)
    bytecode << TAILCALL
    
  elsif( function_name == "return")
    raise_error unless(number_of_arguments == 0 || number_of_arguments == 1)
    bytecode << RETURN
    
  elsif( function_name == "to_string")
    raise_error unless(number_of_arguments == 1)
    bytecode <<  TO_STRING
    
  elsif( function_name == "type_of")
    raise_error unless(number_of_arguments == 1)
    bytecode << TYPEOF
    
  else
    raise CompileError, "Unknown function: #{function_name} at offset: #{self.elements.first.offset}"
  end
end