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This is part of a serious of patches to cleanup expr nodes, by separating

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out functionality and reducing the number of dynamic casts.
This commit is contained in:
John Johansen 2010-11-09 11:34:59 -08:00
parent adb0973d61
commit d2581332db
1 changed files with 15 additions and 8 deletions
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23
parser/libapparmor_re/regexp.y
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@ -114,6 +114,13 @@
}
};
class InnerNode : public Node {
public:
InnerNode() : Node() { };
InnerNode(Node *left) : Node(left) {};
InnerNode(Node *left, Node *right) : Node(left, right) { };
};
/* Match nothing (//). */
class EpsNode : public Node {
public:
@ -331,10 +338,10 @@
};
/* Match a pair of consecutive nodes. */
class CatNode : public Node {
class CatNode : public InnerNode {
public:
CatNode(Node *left, Node *right) :
Node(left, right) { }
InnerNode(left, right) { }
void compute_nullable()
{
nullable = child[0]->nullable && child[1]->nullable;
@ -378,10 +385,10 @@
};
/* Match a node zero or more times. (This is a unary operator.) */
class StarNode : public Node {
class StarNode : public InnerNode {
public:
StarNode(Node *left) :
Node(left)
InnerNode(left)
{
nullable = true;
}
@ -414,10 +421,10 @@
};
/* Match a node one or more times. (This is a unary operator.) */
class PlusNode : public Node {
class PlusNode : public InnerNode {
public:
PlusNode(Node *left) :
Node(left) { }
InnerNode(left) { }
void compute_nullable()
{
nullable = child[0]->nullable;
@ -451,10 +458,10 @@
};
/* Match one of two alternative nodes. */
class AltNode : public Node {
class AltNode : public InnerNode {
public:
AltNode(Node *left, Node *right) :
Node(left, right) { }
InnerNode(left, right) { }
void compute_nullable()
{
nullable = child[0]->nullable || child[1]->nullable;