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realm-js
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add macro to enable/disable debug token printing

This commit is contained in:
Ari Lazier 2015-11-11 14:08:59 -08:00
parent ed1b3c4ecf
commit bd04f5584b
1 changed files with 16 additions and 9 deletions
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25
parser/parser.cpp
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@ -137,11 +137,18 @@ struct ParserState
template< typename Rule > template< typename Rule >
struct action : nothing< Rule > {}; struct action : nothing< Rule > {};
#define REALM_PARSER_PRINT_TOKENS
#ifdef REALM_PARSER_PRINT_TOKENS
#define DEBUG_PRINT_TOKEN(string) std::cout << string << std::endl
#else
#define DEBUG_PRINT_TOKEN(string)
#endif
template<> struct action< and_ext > template<> struct action< and_ext >
{ {
static void apply( const input & in, ParserState & state ) static void apply( const input & in, ParserState & state )
{ {
std::cout << "<and>" << in.string() << std::endl; DEBUG_PRINT_TOKEN("<and>");
// if we were put into an OR group we need to rearrange // if we were put into an OR group we need to rearrange
auto &current = state.current(); auto &current = state.current();
@ -171,7 +178,7 @@ template<> struct action< or_ext >
{ {
static void apply( const input & in, ParserState & state ) static void apply( const input & in, ParserState & state )
{ {
std::cout << "<or>" << in.string() << std::endl; DEBUG_PRINT_TOKEN("<or>");
// if already an OR group do nothing // if already an OR group do nothing
auto &current = state.current(); auto &current = state.current();
@ -202,7 +209,7 @@ template<> struct action< or_ext >
#define EXPRESSION_ACTION(rule, type) \ #define EXPRESSION_ACTION(rule, type) \
template<> struct action< rule > { \ template<> struct action< rule > { \
static void apply( const input & in, ParserState & state ) { \ static void apply( const input & in, ParserState & state ) { \
std::cout << in.string() << std::endl; \ DEBUG_PRINT_TOKEN(in.string()); \
state.addExpression(Expression(type, in.string())); }}; state.addExpression(Expression(type, in.string())); }};
EXPRESSION_ACTION(dq_string_content, Expression::Type::String) EXPRESSION_ACTION(dq_string_content, Expression::Type::String)
@ -218,7 +225,7 @@ template<> struct action< true_pred >
{ {
static void apply( const input & in, ParserState & state ) static void apply( const input & in, ParserState & state )
{ {
std::cout << in.string() << std::endl; DEBUG_PRINT_TOKEN(in.string());
state.current().cpnd.sub_predicates.emplace_back(Predicate::Type::True); state.current().cpnd.sub_predicates.emplace_back(Predicate::Type::True);
} }
}; };
@ -227,7 +234,7 @@ template<> struct action< false_pred >
{ {
static void apply( const input & in, ParserState & state ) static void apply( const input & in, ParserState & state )
{ {
std::cout << in.string() << std::endl; DEBUG_PRINT_TOKEN(in.string());
state.current().cpnd.sub_predicates.emplace_back(Predicate::Type::False); state.current().cpnd.sub_predicates.emplace_back(Predicate::Type::False);
} }
}; };
@ -235,7 +242,7 @@ template<> struct action< false_pred >
#define OPERATOR_ACTION(rule, oper) \ #define OPERATOR_ACTION(rule, oper) \
template<> struct action< rule > { \ template<> struct action< rule > { \
static void apply( const input & in, ParserState & state ) { \ static void apply( const input & in, ParserState & state ) { \
std::cout << in.string() << std::endl; \ DEBUG_PRINT_TOKEN(in.string()); \
state.current().cmpr.op = oper; }}; state.current().cmpr.op = oper; }};
OPERATOR_ACTION(eq, Predicate::Operator::Equal) OPERATOR_ACTION(eq, Predicate::Operator::Equal)
@ -252,7 +259,7 @@ template<> struct action< one< '(' > >
{ {
static void apply( const input & in, ParserState & state ) static void apply( const input & in, ParserState & state )
{ {
std::cout << "<begin_group>" << std::endl; DEBUG_PRINT_TOKEN("<begin_group>");
Predicate group(Predicate::Type::And); Predicate group(Predicate::Type::And);
if (state.negate_next) { if (state.negate_next) {
@ -269,7 +276,7 @@ template<> struct action< group_pred >
{ {
static void apply( const input & in, ParserState & state ) static void apply( const input & in, ParserState & state )
{ {
std::cout << "<end_group>" << std::endl; DEBUG_PRINT_TOKEN("<end_group>");
state.predicate_stack.pop_back(); state.predicate_stack.pop_back();
} }
}; };
@ -278,7 +285,7 @@ template<> struct action< not_pre >
{ {
static void apply( const input & in, ParserState & state ) static void apply( const input & in, ParserState & state )
{ {
std::cout << "<not>" << std::endl; DEBUG_PRINT_TOKEN("<not>");
state.negate_next = true; state.negate_next = true;
} }
}; };