fix bug in while expr

Author: v0dro

TUTORIAL.md

@@ -62,9 +62,11 @@ class String
   def blank?(string)
     char *s = string
     int i = 0
+    int a = string.size
 
-    while i < string.size do
+    while i < a do
       return false if s[i] != ' '
+      i += 1
     end
 
     return true

lib/rubex/ast/statement/while.rb

@@ -10,7 +10,7 @@ def initialize(expr, statements, location)
 
         def analyse_statement(local_scope)
           @expr.analyse_types local_scope
-          @expr.release_temps local_scope
+          @expr.allocate_temps local_scope
           @statements.each do |stat|
             stat.analyse_statement local_scope
           end

spec/examples_spec.rb

@@ -1,9 +1,9 @@
 require 'spec_helper'
 
-describe Rubex do
+describe Rubex, hell: true do
   test_case = 'examples'
 
-  examples = ['rcsv', 'array_to_hash'].each do |example|
+  examples = ['rcsv', 'array_to_hash', "blank"].each do |example|
     context "Case: #{test_case}/#{example}" do
       before do
         @path = path_str test_case, example
@@ -41,6 +41,11 @@ def array_to_hash
             expect(a.each_with_index.to_h).to eq(Array2Hash.convert(a))
           end
 
+          def blank
+            a = "   "
+            expect(a.blank?(a)).to eq(true)
+          end
+
           setup_and_teardown_compiled_files(test_case, example) do |dir|
             require_relative "#{dir}/#{example}/#{example}.#{os_extension}"
             self.send(example.to_sym)

spec/fixtures/examples/blank.rubex

@@ -0,0 +1,14 @@
+class String
+  def blank?(string)
+    char *s = string
+    int i = 0
+    int a = string.size
+    
+    while i < a do
+      return false if s[i] != ' '
+      i += 1
+    end
+
+    return true
+  end
+end