Function arguments

generator.v

@@ -8,6 +8,10 @@ mut:
 	out strings.Builder
 }
 
+fn mangle_var(name string, scope_depth int) string {
+	return 'v${name}${scope_depth.str()}'
+}
+
 fn (mut g Generator) get_c_type(typ string) string {
 	c_type := if typ == 'real' { 'double' } else { typ }
 	return c_type
@@ -17,7 +21,7 @@ fn (mut g Generator) gen_stmt(stmt Stmt) {
 	match stmt {
 		VarDecl {
 			c_type := g.get_c_type(stmt.type)
-			g.out.write_string('${c_type} v${stmt.name}${stmt.scope_depth.str()} = ')
+			g.out.write_string('${c_type} ${mangle_var(stmt.name, stmt.scope_depth)} = ')
 			g.gen_expr(stmt.value)
 			g.out.writeln(';')
 		}
@@ -39,9 +43,20 @@ fn (mut g Generator) gen_stmt(stmt Stmt) {
 		}
 		FuncDecl {
 			c_type := g.get_c_type(stmt.ret_type)
-			g.out.write_string('${c_type} ${stmt.name}() ')
+			g.out.write_string('${c_type} ${stmt.name}(')
+			for param in stmt.params {
+				g.gen_stmt(param)
+				if param != stmt.params[stmt.params.len-1]{
+					g.out.write_string(', ')
+				}
+			}
+			g.out.write_string(')')
 			g.gen_stmt(stmt.block)
 		}
+		Param {
+			c_type := g.get_c_type(stmt.type)
+			g.out.write_string('${c_type} ${mangle_var(stmt.name, 2)}')
+		}
 	}
 }
 
@@ -57,7 +72,7 @@ fn (mut g Generator) gen_expr(expr Expr) {
 			g.out.write_string(expr.val.str())
 		}
 		Variable {
-			g.out.write_string('v${expr.name}${expr.scope_depth.str()}')
+			g.out.write_string(mangle_var(expr.name, expr.scope_depth))
 		}
 		UnaryExpr {
 			g.out.write_string('${expr.ident}${expr.op}')
@@ -91,7 +106,14 @@ fn (mut g Generator) gen_expr(expr Expr) {
 			g.out.write_string(')')
 		}
 		FnCall {
-			g.out.write_string('${expr.name}()')
+			g.out.write_string('${expr.name}(')
+			for arg in expr.args {
+				g.gen_expr(arg)
+				if arg != expr.args[expr.args.len-1]{
+					g.out.write_string(', ')
+				}
+			}
+			g.out.write_string(')')
 		}
 		else {panic("Unimplemented expression")}
 	}