[prettyprint] r594 committed - Rename NullStatement to EmptyStatement

[prett...@googlecode.com]

Revision: 594
Author: thockin
Date: Wed Dec 15 14:03:40 2010
Log: Rename NullStatement to EmptyStatement

http://code.google.com/p/prettyprint/source/detail?r=594

Modified:
/trunk/language/grammar.y
/trunk/language/syntax_tree.cpp
/trunk/language/syntax_tree.h

=======================================
--- /trunk/language/grammar.y Tue Dec 14 18:26:24 2010
+++ /trunk/language/grammar.y Wed Dec 15 14:03:40 2010
@@ -811,7 +811,7 @@
empty_statement
: ';' {
SYNTRACE("empty_statement", "';'");
- $$ = new NullStatement(curpos());
+ $$ = new EmptyStatement(curpos());
}
;

@@ -895,7 +895,7 @@
Statement *loop = new WhileLoopStatement(curpos(), $3, $5);
loop->add_label(new Identifier(curpos(), "@loop_continue"));
stmts->push_back(loop);
- Statement *nop = new NullStatement(curpos());
+ Statement *nop = new EmptyStatement(curpos());
nop->add_label(new Identifier(curpos(), "@loop_break"));
stmts->push_back(nop);
$$ = new CompoundStatement(curpos(), stmts);
@@ -919,7 +919,7 @@
Statement *loop = new WhileLoopStatement(curpos(), $5, $2);
loop->add_label(new Identifier(curpos(), "@loop_continue"));
stmts->push_back(loop);
- Statement *nop = new NullStatement(curpos());
+ Statement *nop = new EmptyStatement(curpos());
nop->add_label(new Identifier(curpos(), "@loop_break"));
stmts->push_back(nop);
$$ = new CompoundStatement(curpos(), stmts);
@@ -950,7 +950,7 @@
Statement *loop = new WhileLoopStatement(curpos(), $5, body);
loop->add_label(new Identifier(curpos(), "@loop_continue"));
stmts->push_back(loop);
- Statement *nop = new NullStatement(curpos());
+ Statement *nop = new EmptyStatement(curpos());
nop->add_label(new Identifier(curpos(), "@loop_break"));
stmts->push_back(nop);
$$ = new CompoundStatement(curpos(), stmts);
@@ -981,7 +981,7 @@
Statement *loop = new WhileLoopStatement(curpos(), $4, body);
loop->add_label(new Identifier(curpos(), "@loop_continue"));
stmts->push_back(loop);
- Statement *nop = new NullStatement(curpos());
+ Statement *nop = new EmptyStatement(curpos());
nop->add_label(new Identifier(curpos(), "@loop_break"));
stmts->push_back(nop);
$$ = new CompoundStatement(curpos(), stmts);
=======================================
--- /trunk/language/syntax_tree.cpp Wed Jul 7 17:15:34 2010
+++ /trunk/language/syntax_tree.cpp Wed Dec 15 14:03:40 2010
@@ -51,14 +51,14 @@
}

string
-NullStatement::to_string() const
+EmptyStatement::to_string() const
{
string ret = Statement::to_string();
return ret + "(undef);";
}

bool
-NullStatement::execute()
+EmptyStatement::execute()
{
return true;
}
=======================================
--- /trunk/language/syntax_tree.h Wed Jul 7 17:15:34 2010
+++ /trunk/language/syntax_tree.h Wed Dec 15 14:03:40 2010
@@ -430,10 +430,10 @@

typedef std::vector<Type*> TypeList;

-class NullStatement : public Statement {
+class EmptyStatement : public Statement {
public:
explicit
- NullStatement(const Parser::Position &pos)
+ EmptyStatement(const Parser::Position &pos)
: Statement(pos)
{
}