exec_node: Remove destructor from exec_node and all descendants.

Two of these destructors are non-empty, (s_symbol and s_list), so this
commit could potentially introduce memory leaks, (though, no additional
leaks are found in glsl-orangebook-ch06-bump.frag at least---perhaps
the current code is never calling delete on these classes?).

Going forward, we will switch to talloc for exec_node so we won't need
explicit destrcutors to free up any memory used.

2 files changed, 0 insertions, 23 deletions

diff --git a/s_expression.cpp b/s_expression.cpp
index 4022dfa..0fb296e 100644
--- a/s_expression.cpp
+++ b/s_expression.cpp
@@ -34,25 +34,10 @@ s_symbol::s_symbol(const char *tmp)
    strcpy(this->str, tmp);
 }
 
-s_symbol::~s_symbol()
-{
-   delete [] this->str;
-   this->str = NULL;
-}
-
 s_list::s_list()
 {
 }
 
-s_list::~s_list()
-{
-   exec_list_iterator it(this->subexpressions.iterator());
-   while (it.has_next())
-      it.remove();
-
-   assert(this->subexpressions.is_empty());
-}
-
 unsigned
 s_list::length() const
 {
diff --git a/s_expression.h b/s_expression.h
index d5e52c1..8a4eda2 100644
--- a/s_expression.h
+++ b/s_expression.h
@@ -46,8 +46,6 @@
 class s_expression : public exec_node
 {
 public:
-   virtual ~s_expression() { }
-
    /**
     * Read an S-Expression from the given string.
     * Advances the supplied pointer to just after the expression read.
@@ -73,8 +71,6 @@ protected:
 class s_number : public s_expression
 {
 public:
-   virtual ~s_number() { }
-
    bool is_number() const { return true; }
 
    virtual float fvalue() = 0;
@@ -87,7 +83,6 @@ class s_int : public s_number
 {
 public:
    s_int(int x) : val(x) { }
-   virtual ~s_int() { }
 
    bool is_int() const { return true; }
 
@@ -104,7 +99,6 @@ class s_float : public s_number
 {
 public:
    s_float(float x) : val(x) { }
-   virtual ~s_float() { }
 
    float fvalue() { return this->val; }
 
@@ -118,7 +112,6 @@ class s_symbol : public s_expression
 {
 public:
    s_symbol(const char *);
-   virtual ~s_symbol();
 
    bool is_symbol() const { return true; }
 
@@ -135,7 +128,6 @@ class s_list : public s_expression
 {
 public:
    s_list();
-   virtual ~s_list();
 
    virtual bool is_list() const { return true; }
    unsigned length() const;