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ExpressionActionsParser.m
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ExpressionActionsParser.m
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#import "ExpressionActionsParser.h"
#import <ParseKit/ParseKit.h>
#define LT(i) [self LT:(i)]
#define LA(i) [self LA:(i)]
#define LS(i) [self LS:(i)]
#define LF(i) [self LF:(i)]
#define POP() [self.assembly pop]
#define POP_STR() [self _popString]
#define POP_TOK() [self _popToken]
#define POP_BOOL() [self _popBool]
#define POP_INT() [self _popInteger]
#define POP_FLOAT() [self _popDouble]
#define PUSH(obj) [self.assembly push:(id)(obj)]
#define PUSH_BOOL(yn) [self _pushBool:(BOOL)(yn)]
#define PUSH_INT(i) [self _pushInteger:(NSInteger)(i)]
#define PUSH_FLOAT(f) [self _pushDouble:(double)(f)]
#define EQ(a, b) [(a) isEqual:(b)]
#define NE(a, b) (![(a) isEqual:(b)])
#define EQ_IGNORE_CASE(a, b) (NSOrderedSame == [(a) compare:(b)])
#define ABOVE(fence) [self.assembly objectsAbove:(fence)]
#define LOG(obj) do { NSLog(@"%@", (obj)); } while (0);
#define PRINT(str) do { printf("%s\n", (str)); } while (0);
@interface PKSParser ()
@property (nonatomic, retain) NSMutableDictionary *_tokenKindTab;
@property (nonatomic, retain) NSMutableArray *_tokenKindNameTab;
- (BOOL)_popBool;
- (NSInteger)_popInteger;
- (double)_popDouble;
- (PKToken *)_popToken;
- (NSString *)_popString;
- (void)_pushBool:(BOOL)yn;
- (void)_pushInteger:(NSInteger)i;
- (void)_pushDouble:(double)d;
@end
@interface ExpressionActionsParser ()
@property (nonatomic, retain) NSMutableDictionary *expr_memo;
@property (nonatomic, retain) NSMutableDictionary *orExpr_memo;
@property (nonatomic, retain) NSMutableDictionary *orTerm_memo;
@property (nonatomic, retain) NSMutableDictionary *andExpr_memo;
@property (nonatomic, retain) NSMutableDictionary *andTerm_memo;
@property (nonatomic, retain) NSMutableDictionary *relExpr_memo;
@property (nonatomic, retain) NSMutableDictionary *relOp_memo;
@property (nonatomic, retain) NSMutableDictionary *relOpTerm_memo;
@property (nonatomic, retain) NSMutableDictionary *callExpr_memo;
@property (nonatomic, retain) NSMutableDictionary *argList_memo;
@property (nonatomic, retain) NSMutableDictionary *primary_memo;
@property (nonatomic, retain) NSMutableDictionary *atom_memo;
@property (nonatomic, retain) NSMutableDictionary *obj_memo;
@property (nonatomic, retain) NSMutableDictionary *id_memo;
@property (nonatomic, retain) NSMutableDictionary *member_memo;
@property (nonatomic, retain) NSMutableDictionary *literal_memo;
@property (nonatomic, retain) NSMutableDictionary *bool_memo;
@end
@implementation ExpressionActionsParser
- (id)init {
self = [super init];
if (self) {
self._tokenKindTab[@"no"] = @(EXPRESSIONACTIONS_TOKEN_KIND_NO);
self._tokenKindTab[@"NO"] = @(EXPRESSIONACTIONS_TOKEN_KIND_NO_UPPER);
self._tokenKindTab[@">="] = @(EXPRESSIONACTIONS_TOKEN_KIND_GE);
self._tokenKindTab[@","] = @(EXPRESSIONACTIONS_TOKEN_KIND_COMMA);
self._tokenKindTab[@"or"] = @(EXPRESSIONACTIONS_TOKEN_KIND_OR);
self._tokenKindTab[@"<"] = @(EXPRESSIONACTIONS_TOKEN_KIND_LT);
self._tokenKindTab[@"<="] = @(EXPRESSIONACTIONS_TOKEN_KIND_LE);
self._tokenKindTab[@"="] = @(EXPRESSIONACTIONS_TOKEN_KIND_EQUALS);
self._tokenKindTab[@"."] = @(EXPRESSIONACTIONS_TOKEN_KIND_DOT);
self._tokenKindTab[@">"] = @(EXPRESSIONACTIONS_TOKEN_KIND_GT);
self._tokenKindTab[@"and"] = @(EXPRESSIONACTIONS_TOKEN_KIND_AND);
self._tokenKindTab[@"("] = @(EXPRESSIONACTIONS_TOKEN_KIND_OPEN_PAREN);
self._tokenKindTab[@"yes"] = @(EXPRESSIONACTIONS_TOKEN_KIND_YES);
self._tokenKindTab[@")"] = @(EXPRESSIONACTIONS_TOKEN_KIND_CLOSE_PAREN);
self._tokenKindTab[@"!="] = @(EXPRESSIONACTIONS_TOKEN_KIND_NE);
self._tokenKindTab[@"YES"] = @(EXPRESSIONACTIONS_TOKEN_KIND_YES_UPPER);
self._tokenKindNameTab[EXPRESSIONACTIONS_TOKEN_KIND_NO] = @"no";
self._tokenKindNameTab[EXPRESSIONACTIONS_TOKEN_KIND_NO_UPPER] = @"NO";
self._tokenKindNameTab[EXPRESSIONACTIONS_TOKEN_KIND_GE] = @">=";
self._tokenKindNameTab[EXPRESSIONACTIONS_TOKEN_KIND_COMMA] = @",";
self._tokenKindNameTab[EXPRESSIONACTIONS_TOKEN_KIND_OR] = @"or";
self._tokenKindNameTab[EXPRESSIONACTIONS_TOKEN_KIND_LT] = @"<";
self._tokenKindNameTab[EXPRESSIONACTIONS_TOKEN_KIND_LE] = @"<=";
self._tokenKindNameTab[EXPRESSIONACTIONS_TOKEN_KIND_EQUALS] = @"=";
self._tokenKindNameTab[EXPRESSIONACTIONS_TOKEN_KIND_DOT] = @".";
self._tokenKindNameTab[EXPRESSIONACTIONS_TOKEN_KIND_GT] = @">";
self._tokenKindNameTab[EXPRESSIONACTIONS_TOKEN_KIND_AND] = @"and";
self._tokenKindNameTab[EXPRESSIONACTIONS_TOKEN_KIND_OPEN_PAREN] = @"(";
self._tokenKindNameTab[EXPRESSIONACTIONS_TOKEN_KIND_YES] = @"yes";
self._tokenKindNameTab[EXPRESSIONACTIONS_TOKEN_KIND_CLOSE_PAREN] = @")";
self._tokenKindNameTab[EXPRESSIONACTIONS_TOKEN_KIND_NE] = @"!=";
self._tokenKindNameTab[EXPRESSIONACTIONS_TOKEN_KIND_YES_UPPER] = @"YES";
self.expr_memo = [NSMutableDictionary dictionary];
self.orExpr_memo = [NSMutableDictionary dictionary];
self.orTerm_memo = [NSMutableDictionary dictionary];
self.andExpr_memo = [NSMutableDictionary dictionary];
self.andTerm_memo = [NSMutableDictionary dictionary];
self.relExpr_memo = [NSMutableDictionary dictionary];
self.relOp_memo = [NSMutableDictionary dictionary];
self.relOpTerm_memo = [NSMutableDictionary dictionary];
self.callExpr_memo = [NSMutableDictionary dictionary];
self.argList_memo = [NSMutableDictionary dictionary];
self.primary_memo = [NSMutableDictionary dictionary];
self.atom_memo = [NSMutableDictionary dictionary];
self.obj_memo = [NSMutableDictionary dictionary];
self.id_memo = [NSMutableDictionary dictionary];
self.member_memo = [NSMutableDictionary dictionary];
self.literal_memo = [NSMutableDictionary dictionary];
self.bool_memo = [NSMutableDictionary dictionary];
}
return self;
}
- (void)dealloc {
self.expr_memo = nil;
self.orExpr_memo = nil;
self.orTerm_memo = nil;
self.andExpr_memo = nil;
self.andTerm_memo = nil;
self.relExpr_memo = nil;
self.relOp_memo = nil;
self.relOpTerm_memo = nil;
self.callExpr_memo = nil;
self.argList_memo = nil;
self.primary_memo = nil;
self.atom_memo = nil;
self.obj_memo = nil;
self.id_memo = nil;
self.member_memo = nil;
self.literal_memo = nil;
self.bool_memo = nil;
[super dealloc];
}
- (void)_clearMemo {
[_expr_memo removeAllObjects];
[_orExpr_memo removeAllObjects];
[_orTerm_memo removeAllObjects];
[_andExpr_memo removeAllObjects];
[_andTerm_memo removeAllObjects];
[_relExpr_memo removeAllObjects];
[_relOp_memo removeAllObjects];
[_relOpTerm_memo removeAllObjects];
[_callExpr_memo removeAllObjects];
[_argList_memo removeAllObjects];
[_primary_memo removeAllObjects];
[_atom_memo removeAllObjects];
[_obj_memo removeAllObjects];
[_id_memo removeAllObjects];
[_member_memo removeAllObjects];
[_literal_memo removeAllObjects];
[_bool_memo removeAllObjects];
}
- (void)_start {
[self expr];
[self matchEOF:YES];
}
- (void)__expr {
[self orExpr];
[self fireAssemblerSelector:@selector(parser:didMatchExpr:)];
}
- (void)expr {
[self parseRule:@selector(__expr) withMemo:_expr_memo];
}
- (void)__orExpr {
[self andExpr];
while ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_OR, 0]) {
if ([self speculate:^{ [self orTerm]; }]) {
[self orTerm];
} else {
break;
}
}
[self fireAssemblerSelector:@selector(parser:didMatchOrExpr:)];
}
- (void)orExpr {
[self parseRule:@selector(__orExpr) withMemo:_orExpr_memo];
}
- (void)__orTerm {
[self match:EXPRESSIONACTIONS_TOKEN_KIND_OR discard:YES];
[self andExpr];
[self execute:(id)^{
BOOL rhs = POP_BOOL();
BOOL lhs = POP_BOOL();
PUSH_BOOL(lhs || rhs);
}];
[self fireAssemblerSelector:@selector(parser:didMatchOrTerm:)];
}
- (void)orTerm {
[self parseRule:@selector(__orTerm) withMemo:_orTerm_memo];
}
- (void)__andExpr {
[self relExpr];
while ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_AND, 0]) {
if ([self speculate:^{ [self andTerm]; }]) {
[self andTerm];
} else {
break;
}
}
[self fireAssemblerSelector:@selector(parser:didMatchAndExpr:)];
}
- (void)andExpr {
[self parseRule:@selector(__andExpr) withMemo:_andExpr_memo];
}
- (void)__andTerm {
[self match:EXPRESSIONACTIONS_TOKEN_KIND_AND discard:YES];
[self relExpr];
[self execute:(id)^{
BOOL rhs = POP_BOOL();
BOOL lhs = POP_BOOL();
PUSH_BOOL(lhs && rhs);
}];
[self fireAssemblerSelector:@selector(parser:didMatchAndTerm:)];
}
- (void)andTerm {
[self parseRule:@selector(__andTerm) withMemo:_andTerm_memo];
}
- (void)__relExpr {
[self callExpr];
while ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_EQUALS, EXPRESSIONACTIONS_TOKEN_KIND_GE, EXPRESSIONACTIONS_TOKEN_KIND_GT, EXPRESSIONACTIONS_TOKEN_KIND_LE, EXPRESSIONACTIONS_TOKEN_KIND_LT, EXPRESSIONACTIONS_TOKEN_KIND_NE, 0]) {
if ([self speculate:^{ [self relOpTerm]; }]) {
[self relOpTerm];
} else {
break;
}
}
[self fireAssemblerSelector:@selector(parser:didMatchRelExpr:)];
}
- (void)relExpr {
[self parseRule:@selector(__relExpr) withMemo:_relExpr_memo];
}
- (void)__relOp {
if ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_LT, 0]) {
[self match:EXPRESSIONACTIONS_TOKEN_KIND_LT discard:NO];
} else if ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_GT, 0]) {
[self match:EXPRESSIONACTIONS_TOKEN_KIND_GT discard:NO];
} else if ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_EQUALS, 0]) {
[self match:EXPRESSIONACTIONS_TOKEN_KIND_EQUALS discard:NO];
} else if ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_NE, 0]) {
[self match:EXPRESSIONACTIONS_TOKEN_KIND_NE discard:NO];
} else if ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_LE, 0]) {
[self match:EXPRESSIONACTIONS_TOKEN_KIND_LE discard:NO];
} else if ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_GE, 0]) {
[self match:EXPRESSIONACTIONS_TOKEN_KIND_GE discard:NO];
} else {
[self raise:@"No viable alternative found in rule 'relOp'."];
}
[self fireAssemblerSelector:@selector(parser:didMatchRelOp:)];
}
- (void)relOp {
[self parseRule:@selector(__relOp) withMemo:_relOp_memo];
}
- (void)__relOpTerm {
[self relOp];
[self callExpr];
[self execute:(id)^{
NSInteger rhs = POP_INT();
NSString *op = POP_STR();
NSInteger lhs = POP_INT();
if (EQ(op, @"<")) PUSH_BOOL(lhs < rhs);
else if (EQ(op, @">")) PUSH_BOOL(lhs > rhs);
else if (EQ(op, @"=")) PUSH_BOOL(lhs == rhs);
else if (EQ(op, @"!=")) PUSH_BOOL(lhs != rhs);
else if (EQ(op, @"<=")) PUSH_BOOL(lhs <= rhs);
else if (EQ(op, @">=")) PUSH_BOOL(lhs >= rhs);
}];
[self fireAssemblerSelector:@selector(parser:didMatchRelOpTerm:)];
}
- (void)relOpTerm {
[self parseRule:@selector(__relOpTerm) withMemo:_relOpTerm_memo];
}
- (void)__callExpr {
[self primary];
if ([self speculate:^{ [self match:EXPRESSIONACTIONS_TOKEN_KIND_OPEN_PAREN discard:NO]; if ([self speculate:^{ [self argList]; }]) {[self argList]; }[self match:EXPRESSIONACTIONS_TOKEN_KIND_CLOSE_PAREN discard:NO]; }]) {
[self match:EXPRESSIONACTIONS_TOKEN_KIND_OPEN_PAREN discard:NO];
if ([self speculate:^{ [self argList]; }]) {
[self argList];
}
[self match:EXPRESSIONACTIONS_TOKEN_KIND_CLOSE_PAREN discard:NO];
}
[self fireAssemblerSelector:@selector(parser:didMatchCallExpr:)];
}
- (void)callExpr {
[self parseRule:@selector(__callExpr) withMemo:_callExpr_memo];
}
- (void)__argList {
[self atom];
while ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_COMMA, 0]) {
if ([self speculate:^{ [self match:EXPRESSIONACTIONS_TOKEN_KIND_COMMA discard:NO]; [self atom]; }]) {
[self match:EXPRESSIONACTIONS_TOKEN_KIND_COMMA discard:NO];
[self atom];
} else {
break;
}
}
[self fireAssemblerSelector:@selector(parser:didMatchArgList:)];
}
- (void)argList {
[self parseRule:@selector(__argList) withMemo:_argList_memo];
}
- (void)__primary {
if ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_NO, EXPRESSIONACTIONS_TOKEN_KIND_NO_UPPER, EXPRESSIONACTIONS_TOKEN_KIND_YES, EXPRESSIONACTIONS_TOKEN_KIND_YES_UPPER, TOKEN_KIND_BUILTIN_NUMBER, TOKEN_KIND_BUILTIN_QUOTEDSTRING, TOKEN_KIND_BUILTIN_WORD, 0]) {
[self atom];
} else if ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_OPEN_PAREN, 0]) {
[self match:EXPRESSIONACTIONS_TOKEN_KIND_OPEN_PAREN discard:NO];
[self expr];
[self match:EXPRESSIONACTIONS_TOKEN_KIND_CLOSE_PAREN discard:NO];
} else {
[self raise:@"No viable alternative found in rule 'primary'."];
}
[self fireAssemblerSelector:@selector(parser:didMatchPrimary:)];
}
- (void)primary {
[self parseRule:@selector(__primary) withMemo:_primary_memo];
}
- (void)__atom {
if ([self predicts:TOKEN_KIND_BUILTIN_WORD, 0]) {
[self obj];
} else if ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_NO, EXPRESSIONACTIONS_TOKEN_KIND_NO_UPPER, EXPRESSIONACTIONS_TOKEN_KIND_YES, EXPRESSIONACTIONS_TOKEN_KIND_YES_UPPER, TOKEN_KIND_BUILTIN_NUMBER, TOKEN_KIND_BUILTIN_QUOTEDSTRING, 0]) {
[self literal];
} else {
[self raise:@"No viable alternative found in rule 'atom'."];
}
[self fireAssemblerSelector:@selector(parser:didMatchAtom:)];
}
- (void)atom {
[self parseRule:@selector(__atom) withMemo:_atom_memo];
}
- (void)__obj {
[self id];
while ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_DOT, 0]) {
if ([self speculate:^{ [self member]; }]) {
[self member];
} else {
break;
}
}
[self fireAssemblerSelector:@selector(parser:didMatchObj:)];
}
- (void)obj {
[self parseRule:@selector(__obj) withMemo:_obj_memo];
}
- (void)__id {
[self matchWord:NO];
[self fireAssemblerSelector:@selector(parser:didMatchId:)];
}
- (void)id {
[self parseRule:@selector(__id) withMemo:_id_memo];
}
- (void)__member {
[self match:EXPRESSIONACTIONS_TOKEN_KIND_DOT discard:NO];
[self id];
[self fireAssemblerSelector:@selector(parser:didMatchMember:)];
}
- (void)member {
[self parseRule:@selector(__member) withMemo:_member_memo];
}
- (void)__literal {
if ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_NO, EXPRESSIONACTIONS_TOKEN_KIND_NO_UPPER, EXPRESSIONACTIONS_TOKEN_KIND_YES, EXPRESSIONACTIONS_TOKEN_KIND_YES_UPPER, 0]) {
[self testAndThrow:(id)^{ return LA(1) != EXPRESSIONACTIONS_TOKEN_KIND_YES_UPPER; }];
[self bool];
[self execute:(id)^{
PUSH_BOOL(EQ_IGNORE_CASE(POP_STR(), @"yes"));
}];
} else if ([self predicts:TOKEN_KIND_BUILTIN_NUMBER, 0]) {
[self matchNumber:NO];
[self execute:(id)^{
PUSH_FLOAT(POP_FLOAT());
}];
} else if ([self predicts:TOKEN_KIND_BUILTIN_QUOTEDSTRING, 0]) {
[self matchQuotedString:NO];
[self execute:(id)^{
PUSH(POP_STR());
}];
} else {
[self raise:@"No viable alternative found in rule 'literal'."];
}
[self fireAssemblerSelector:@selector(parser:didMatchLiteral:)];
}
- (void)literal {
[self parseRule:@selector(__literal) withMemo:_literal_memo];
}
- (void)__bool {
if ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_YES, 0]) {
[self match:EXPRESSIONACTIONS_TOKEN_KIND_YES discard:NO];
} else if ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_YES_UPPER, 0]) {
[self match:EXPRESSIONACTIONS_TOKEN_KIND_YES_UPPER discard:NO];
} else if ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_NO, 0]) {
[self match:EXPRESSIONACTIONS_TOKEN_KIND_NO discard:NO];
} else if ([self predicts:EXPRESSIONACTIONS_TOKEN_KIND_NO_UPPER, 0]) {
[self testAndThrow:(id)^{ return NE(LS(1), @"NO"); }];
[self match:EXPRESSIONACTIONS_TOKEN_KIND_NO_UPPER discard:NO];
} else {
[self raise:@"No viable alternative found in rule 'bool'."];
}
[self fireAssemblerSelector:@selector(parser:didMatchBool:)];
}
- (void)bool {
[self parseRule:@selector(__bool) withMemo:_bool_memo];
}
@end