[colobot] 16/100: Remove remaining occurences of "this == nullptr" (#828)

[Didier Raboud]

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odyx pushed a commit to branch debian/master
in repository colobot.

commit 35d60aaae58b88d314dbe2501b5ee415490a1b96
Author: krzys-h <krzys_h at interia.pl>
Date:   Fri Nov 11 19:45:57 2016 +0100

    Remove remaining occurences of "this == nullptr" (#828)
---
 src/CBot/CBotProgram.cpp |  3 +--
 src/CBot/CBotStack.cpp   | 17 +++++++++++++----
 src/CBot/CBotToken.cpp   |  6 +++---
 3 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/src/CBot/CBotProgram.cpp b/src/CBot/CBotProgram.cpp
index 978c641..a303df6 100644
--- a/src/CBot/CBotProgram.cpp
+++ b/src/CBot/CBotProgram.cpp
@@ -363,8 +363,7 @@ bool CBotProgram::RestoreState(FILE* pf)
     }
 
     // retrieves the stack from the memory
-    // uses a nullptr pointer (m_stack) but it's ok like that
-    // TODO: no it's not okay like that! but it looks like it doesn't get optimized out at least ~krzys_h
+    m_stack = CBotStack::AllocateStack();
     if (!m_stack->RestoreState(pf, m_stack)) return false;
     m_stack->SetProgram(this);                     // bases for routines
 
diff --git a/src/CBot/CBotStack.cpp b/src/CBot/CBotStack.cpp
index c554d7c..6afcc75 100644
--- a/src/CBot/CBotStack.cpp
+++ b/src/CBot/CBotStack.cpp
@@ -192,8 +192,18 @@ bool CBotStack::Return(CBotStack* pfils)
     m_var = pfils->m_var;                        // result transmitted
     pfils->m_var = nullptr;                        // not to destroy the variable
 
-    if (m_next != nullptr) m_next->Delete();m_next = nullptr;                // releases the stack above
-    if (m_next2 != nullptr) m_next2->Delete();m_next2 = nullptr;            // also the second stack (catch)
+    if (m_next != nullptr)
+    {
+        // releases the stack above
+        m_next->Delete();
+        m_next = nullptr;
+    }
+    if (m_next2 != nullptr)
+    {
+        // also the second stack (catch)
+        m_next2->Delete();
+        m_next2 = nullptr;
+    }
 
     return IsOk();                        // interrupted if error
 }
@@ -731,8 +741,7 @@ bool CBotStack::RestoreState(FILE* pf, CBotStack* &pStack)
     if (!ReadWord(pf, w)) return false;
     if ( w == 0 ) return true; // 0 - terminator
 
-    if ( this == nullptr ) pStack = AllocateStack();
-    else pStack = AddStack();
+    pStack = AddStack();
 
     if ( w == 2 ) // 2 - m_next2
     {
diff --git a/src/CBot/CBotToken.cpp b/src/CBot/CBotToken.cpp
index 890c038..28e6690 100644
--- a/src/CBot/CBotToken.cpp
+++ b/src/CBot/CBotToken.cpp
@@ -199,7 +199,7 @@ const CBotToken& CBotToken::operator=(const CBotToken& src)
 ////////////////////////////////////////////////////////////////////////////////
 int CBotToken::GetType()
 {
-    if (this == nullptr) return 0;
+    assert(this != nullptr);
     if (m_type == TokenTypKeyWord) return m_keywordId;
     return m_type;
 }
@@ -225,14 +225,14 @@ void CBotToken::SetString(const std::string& name)
 ////////////////////////////////////////////////////////////////////////////////
 int CBotToken::GetStart()
 {
-    if (this == nullptr) return -1;
+    assert(this != nullptr);
     return m_start;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 int CBotToken::GetEnd()
 {
-    if (this == nullptr) return -1;
+    assert(this != nullptr);
     return m_end;
 }
 

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