source: src/Parser/ParseNode.h@ 9853d9b0

ADT arm-eh ast-experimental enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since 9853d9b0 was 312029a, checked in by Peter A. Buhr <pabuhr@…>, 6 years ago

move enum Aggregate from DeclarationNode to AggregateDecl, add control-keyword field-dereference to replace control-keyword cast
  • Property mode set to 100644
File size: 20.4 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// ParseNode.h --
8//
9// Author : Rodolfo G. Esteves
10// Created On : Sat May 16 13:28:16 2015
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Wed Dec 11 07:40:07 2019
13// Update Count : 882
14//
15
16#pragma once
17
18#include <algorithm> // for move
19#include <cassert> // for assert, assertf
20#include <iosfwd> // for ostream
21#include <iterator> // for back_insert_iterator
22#include <list> // for list
23#include <memory> // for unique_ptr, pointer_traits
24#include <string> // for string
25
26#include "Common/CodeLocation.h" // for CodeLocation
27#include "Common/SemanticError.h" // for SemanticError
28#include "Common/UniqueName.h" // for UniqueName
29#include "Common/utility.h" // for maybeClone, maybeBuild
30#include "Parser/LinkageSpec.h" // for Spec
31#include "SynTree/Declaration.h" // for Aggregate
32#include "SynTree/Expression.h" // for Expression, ConstantExpr (ptr only)
33#include "SynTree/Label.h" // for Label
34#include "SynTree/Statement.h" // for Statement, BranchStmt, BranchStmt:...
35#include "SynTree/Type.h" // for Type, Type::FuncSpecifiers, Type::...
36
37class Attribute;
38class Declaration;
39class DeclarationNode;
40class DeclarationWithType;
41class ExpressionNode;
42class Initializer;
43class StatementNode;
44
45//##############################################################################
46
47typedef CodeLocation YYLTYPE;
48#define YYLTYPE_IS_DECLARED 1 /* alert the parser that we have our own definition */
49
50extern YYLTYPE yylloc;
51
52class ParseNode {
53 public:
54 ParseNode() {};
55 virtual ~ParseNode() { delete next; delete name; };
56 virtual ParseNode * clone() const = 0;
57
58 ParseNode * get_next() const { return next; }
59 ParseNode * set_next( ParseNode * newlink ) { next = newlink; return this; }
60
61 ParseNode * get_last() {
62 ParseNode * current;
63 for ( current = this; current->get_next() != nullptr; current = current->get_next() );
64 return current;
65 }
66 ParseNode * set_last( ParseNode * newlast ) {
67 if ( newlast != nullptr ) get_last()->set_next( newlast );
68 return this;
69 }
70
71 virtual void print( __attribute__((unused)) std::ostream & os, __attribute__((unused)) int indent = 0 ) const {}
72 virtual void printList( std::ostream & os, int indent = 0 ) const {
73 print( os, indent );
74 if ( next ) next->print( os, indent );
75 }
76
77 static int indent_by;
78
79 ParseNode * next = nullptr;
80 const std::string * name = nullptr;
81 CodeLocation location = yylloc;
82}; // ParseNode
83
84//##############################################################################
85
86class InitializerNode : public ParseNode {
87 public:
88 InitializerNode( ExpressionNode *, bool aggrp = false, ExpressionNode * des = nullptr );
89 InitializerNode( InitializerNode *, bool aggrp = false, ExpressionNode * des = nullptr );
90 InitializerNode( bool isDelete );
91 ~InitializerNode();
92 virtual InitializerNode * clone() const { assert( false ); return nullptr; }
93
94 ExpressionNode * get_expression() const { return expr; }
95
96 InitializerNode * set_designators( ExpressionNode * des ) { designator = des; return this; }
97 ExpressionNode * get_designators() const { return designator; }
98
99 InitializerNode * set_maybeConstructed( bool value ) { maybeConstructed = value; return this; }
100 bool get_maybeConstructed() const { return maybeConstructed; }
101
102 bool get_isDelete() const { return isDelete; }
103
104 InitializerNode * next_init() const { return kids; }
105
106 void print( std::ostream & os, int indent = 0 ) const;
107 void printOneLine( std::ostream & ) const;
108
109 virtual Initializer * build() const;
110 private:
111 ExpressionNode * expr;
112 bool aggregate;
113 ExpressionNode * designator; // may be list
114 InitializerNode * kids;
115 bool maybeConstructed;
116 bool isDelete;
117}; // InitializerNode
118
119//##############################################################################
120
121class ExpressionNode final : public ParseNode {
122 public:
123 ExpressionNode( Expression * expr = nullptr ) : expr( expr ) {}
124 virtual ~ExpressionNode() {}
125 virtual ExpressionNode * clone() const override { return expr ? static_cast<ExpressionNode*>((new ExpressionNode( expr->clone() ))->set_next( maybeClone( get_next() ) )) : nullptr; }
126
127 bool get_extension() const { return extension; }
128 ExpressionNode * set_extension( bool exten ) { extension = exten; return this; }
129
130 virtual void print( std::ostream & os, __attribute__((unused)) int indent = 0 ) const override {
131 os << expr.get();
132 }
133 void printOneLine( __attribute__((unused)) std::ostream & os, __attribute__((unused)) int indent = 0 ) const {}
134
135 template<typename T>
136 bool isExpressionType() const { return nullptr != dynamic_cast<T>(expr.get()); }
137
138 Expression * build() const { return const_cast<ExpressionNode *>(this)->expr.release(); }
139
140 std::unique_ptr<Expression> expr; // public because of lifetime implications
141 private:
142 bool extension = false;
143}; // ExpressionNode
144
145template< typename T >
146struct maybeBuild_t< Expression, T > {
147 static inline Expression * doit( const T * orig ) {
148 if ( orig ) {
149 Expression * p = orig->build();
150 p->set_extension( orig->get_extension() );
151 p->location = orig->location;
152 return p;
153 } else {
154 return nullptr;
155 } // if
156 }
157};
158
159// Must harmonize with OperName.
160enum class OperKinds {
161 // diadic
162 SizeOf, AlignOf, OffsetOf, Plus, Minus, Exp, Mul, Div, Mod, Or, And,
163 BitOr, BitAnd, Xor, Cast, LShift, RShift, LThan, GThan, LEThan, GEThan, Eq, Neq,
164 Assign, AtAssn, ExpAssn, MulAssn, DivAssn, ModAssn, PlusAssn, MinusAssn, LSAssn, RSAssn, AndAssn, ERAssn, OrAssn,
165 Index, Range,
166 // monadic
167 UnPlus, UnMinus, AddressOf, PointTo, Neg, BitNeg, Incr, IncrPost, Decr, DecrPost,
168 Ctor, Dtor,
169}; // OperKinds
170
171struct LabelNode {
172 std::list< Label > labels;
173};
174
175Expression * build_constantInteger( std::string & str ); // these 4 routines modify the string
176Expression * build_constantFloat( std::string & str );
177Expression * build_constantChar( std::string & str );
178Expression * build_constantStr( std::string & str );
179Expression * build_field_name_FLOATING_FRACTIONconstant( const std::string & str );
180Expression * build_field_name_FLOATING_DECIMALconstant( const std::string & str );
181Expression * build_field_name_FLOATINGconstant( const std::string & str );
182Expression * build_field_name_fraction_constants( Expression * fieldName, ExpressionNode * fracts );
183
184NameExpr * build_varref( const std::string * name );
185
186Expression * build_cast( DeclarationNode * decl_node, ExpressionNode * expr_node );
187Expression * build_keyword_cast( AggregateDecl::Aggregate target, ExpressionNode * expr_node );
188Expression * build_virtual_cast( DeclarationNode * decl_node, ExpressionNode * expr_node );
189Expression * build_fieldSel( ExpressionNode * expr_node, Expression * member );
190Expression * build_pfieldSel( ExpressionNode * expr_node, Expression * member );
191Expression * build_offsetOf( DeclarationNode * decl_node, NameExpr * member );
192Expression * build_and( ExpressionNode * expr_node1, ExpressionNode * expr_node2 );
193Expression * build_and_or( ExpressionNode * expr_node1, ExpressionNode * expr_node2, bool kind );
194Expression * build_unary_val( OperKinds op, ExpressionNode * expr_node );
195Expression * build_unary_ptr( OperKinds op, ExpressionNode * expr_node );
196Expression * build_binary_val( OperKinds op, ExpressionNode * expr_node1, ExpressionNode * expr_node2 );
197Expression * build_binary_ptr( OperKinds op, ExpressionNode * expr_node1, ExpressionNode * expr_node2 );
198Expression * build_cond( ExpressionNode * expr_node1, ExpressionNode * expr_node2, ExpressionNode * expr_node3 );
199Expression * build_tuple( ExpressionNode * expr_node = nullptr );
200Expression * build_func( ExpressionNode * function, ExpressionNode * expr_node );
201Expression * build_compoundLiteral( DeclarationNode * decl_node, InitializerNode * kids );
202
203//##############################################################################
204
205struct TypeData;
206
207class DeclarationNode : public ParseNode {
208 public:
209 // These enumerations must harmonize with their names in DeclarationNode.cc.
210 enum BasicType { Void, Bool, Char, Int, Int128,
211 Float, Double, LongDouble, uuFloat80, uuFloat128,
212 uFloat16, uFloat32, uFloat32x, uFloat64, uFloat64x, uFloat128, uFloat128x, NoBasicType };
213 static const char * basicTypeNames[];
214 enum ComplexType { Complex, NoComplexType, Imaginary }; // Imaginary unsupported => parse, but make invisible and print error message
215 static const char * complexTypeNames[];
216 enum Signedness { Signed, Unsigned, NoSignedness };
217 static const char * signednessNames[];
218 enum Length { Short, Long, LongLong, NoLength };
219 static const char * lengthNames[];
220 enum TypeClass { Otype, Dtype, Ftype, Ttype, NoTypeClass };
221 static const char * typeClassNames[];
222 enum BuiltinType { Valist, AutoType, Zero, One, NoBuiltinType };
223 static const char * builtinTypeNames[];
224
225 static DeclarationNode * newStorageClass( Type::StorageClasses );
226 static DeclarationNode * newFuncSpecifier( Type::FuncSpecifiers );
227 static DeclarationNode * newTypeQualifier( Type::Qualifiers );
228 static DeclarationNode * newBasicType( BasicType );
229 static DeclarationNode * newComplexType( ComplexType );
230 static DeclarationNode * newSignedNess( Signedness );
231 static DeclarationNode * newLength( Length );
232 static DeclarationNode * newBuiltinType( BuiltinType );
233 static DeclarationNode * newForall( DeclarationNode * );
234 static DeclarationNode * newFromTypedef( const std::string * );
235 static DeclarationNode * newFromGlobalScope();
236 static DeclarationNode * newQualifiedType( DeclarationNode *, DeclarationNode * );
237 static DeclarationNode * newFunction( const std::string * name, DeclarationNode * ret, DeclarationNode * param, StatementNode * body );
238 static DeclarationNode * newAggregate( AggregateDecl::Aggregate kind, const std::string * name, ExpressionNode * actuals, DeclarationNode * fields, bool body );
239 static DeclarationNode * newEnum( const std::string * name, DeclarationNode * constants, bool body );
240 static DeclarationNode * newEnumConstant( const std::string * name, ExpressionNode * constant );
241 static DeclarationNode * newName( const std::string * );
242 static DeclarationNode * newFromTypeGen( const std::string *, ExpressionNode * params );
243 static DeclarationNode * newTypeParam( TypeClass, const std::string * );
244 static DeclarationNode * newTrait( const std::string * name, DeclarationNode * params, DeclarationNode * asserts );
245 static DeclarationNode * newTraitUse( const std::string * name, ExpressionNode * params );
246 static DeclarationNode * newTypeDecl( const std::string * name, DeclarationNode * typeParams );
247 static DeclarationNode * newPointer( DeclarationNode * qualifiers, OperKinds kind );
248 static DeclarationNode * newArray( ExpressionNode * size, DeclarationNode * qualifiers, bool isStatic );
249 static DeclarationNode * newVarArray( DeclarationNode * qualifiers );
250 static DeclarationNode * newBitfield( ExpressionNode * size );
251 static DeclarationNode * newTuple( DeclarationNode * members );
252 static DeclarationNode * newTypeof( ExpressionNode * expr, bool basetypeof = false );
253 static DeclarationNode * newAttribute( const std::string *, ExpressionNode * expr = nullptr ); // gcc attributes
254 static DeclarationNode * newAsmStmt( StatementNode * stmt ); // gcc external asm statement
255 static DeclarationNode * newStaticAssert( ExpressionNode * condition, Expression * message );
256
257 DeclarationNode();
258 ~DeclarationNode();
259 DeclarationNode * clone() const override;
260
261 DeclarationNode * addQualifiers( DeclarationNode * );
262 void checkQualifiers( const TypeData *, const TypeData * );
263 void checkSpecifiers( DeclarationNode * );
264 DeclarationNode * copySpecifiers( DeclarationNode * );
265 DeclarationNode * addType( DeclarationNode * );
266 DeclarationNode * addTypedef();
267 DeclarationNode * addAssertions( DeclarationNode * );
268 DeclarationNode * addName( std::string * );
269 DeclarationNode * addAsmName( DeclarationNode * );
270 DeclarationNode * addBitfield( ExpressionNode * size );
271 DeclarationNode * addVarArgs();
272 DeclarationNode * addFunctionBody( StatementNode * body, ExpressionNode * with = nullptr );
273 DeclarationNode * addOldDeclList( DeclarationNode * list );
274 DeclarationNode * setBase( TypeData * newType );
275 DeclarationNode * copyAttribute( DeclarationNode * attr );
276 DeclarationNode * addPointer( DeclarationNode * qualifiers );
277 DeclarationNode * addArray( DeclarationNode * array );
278 DeclarationNode * addNewPointer( DeclarationNode * pointer );
279 DeclarationNode * addNewArray( DeclarationNode * array );
280 DeclarationNode * addParamList( DeclarationNode * list );
281 DeclarationNode * addIdList( DeclarationNode * list ); // old-style functions
282 DeclarationNode * addInitializer( InitializerNode * init );
283 DeclarationNode * addTypeInitializer( DeclarationNode * init );
284
285 DeclarationNode * cloneType( std::string * newName );
286 DeclarationNode * cloneBaseType( DeclarationNode * newdecl );
287
288 DeclarationNode * appendList( DeclarationNode * node ) {
289 return (DeclarationNode *)set_last( node );
290 }
291
292 virtual void print( __attribute__((unused)) std::ostream & os, __attribute__((unused)) int indent = 0 ) const override;
293 virtual void printList( __attribute__((unused)) std::ostream & os, __attribute__((unused)) int indent = 0 ) const override;
294
295 Declaration * build() const;
296 Type * buildType() const;
297
298 LinkageSpec::Spec get_linkage() const { return linkage; }
299 DeclarationNode * extractAggregate() const;
300 bool has_enumeratorValue() const { return (bool)enumeratorValue; }
301 ExpressionNode * consume_enumeratorValue() const { return const_cast<DeclarationNode *>(this)->enumeratorValue.release(); }
302
303 bool get_extension() const { return extension; }
304 DeclarationNode * set_extension( bool exten ) { extension = exten; return this; }
305
306 bool get_inLine() const { return inLine; }
307 DeclarationNode * set_inLine( bool inL ) { inLine = inL; return this; }
308 public:
309 DeclarationNode * get_last() { return (DeclarationNode *)ParseNode::get_last(); }
310
311 struct Variable_t {
312// const std::string * name;
313 DeclarationNode::TypeClass tyClass;
314 DeclarationNode * assertions;
315 DeclarationNode * initializer;
316 };
317 Variable_t variable;
318
319 struct Attr_t {
320// const std::string * name;
321 ExpressionNode * expr;
322 DeclarationNode * type;
323 };
324 Attr_t attr;
325
326 struct StaticAssert_t {
327 ExpressionNode * condition;
328 Expression * message;
329 };
330 StaticAssert_t assert;
331
332 BuiltinType builtin = NoBuiltinType;
333
334 TypeData * type = nullptr;
335
336 bool inLine = false;
337 Type::FuncSpecifiers funcSpecs;
338 Type::StorageClasses storageClasses;
339
340 ExpressionNode * bitfieldWidth = nullptr;
341 std::unique_ptr<ExpressionNode> enumeratorValue;
342 bool hasEllipsis = false;
343 LinkageSpec::Spec linkage;
344 Expression * asmName = nullptr;
345 std::list< Attribute * > attributes;
346 InitializerNode * initializer = nullptr;
347 bool extension = false;
348 std::string error;
349 StatementNode * asmStmt = nullptr;
350
351 static UniqueName anonymous;
352}; // DeclarationNode
353
354Type * buildType( TypeData * type );
355
356static inline Type * maybeMoveBuildType( const DeclarationNode * orig ) {
357 Type * ret = orig ? orig->buildType() : nullptr;
358 delete orig;
359 return ret;
360}
361
362//##############################################################################
363
364class StatementNode final : public ParseNode {
365 public:
366 StatementNode() { stmt = nullptr; }
367 StatementNode( Statement * stmt ) : stmt( stmt ) {}
368 StatementNode( DeclarationNode * decl );
369 virtual ~StatementNode() {}
370
371 virtual StatementNode * clone() const final { assert( false ); return nullptr; }
372 Statement * build() const { return const_cast<StatementNode *>(this)->stmt.release(); }
373
374 virtual StatementNode * add_label( const std::string * name, DeclarationNode * attr = nullptr ) {
375 stmt->get_labels().emplace_back( * name, nullptr, attr ? std::move( attr->attributes ) : std::list< Attribute * > {} );
376 delete attr;
377 delete name;
378 return this;
379 }
380
381 virtual StatementNode * append_last_case( StatementNode * );
382
383 virtual void print( std::ostream & os, __attribute__((unused)) int indent = 0 ) const override {
384 os << stmt.get() << std::endl;
385 }
386 private:
387 std::unique_ptr<Statement> stmt;
388}; // StatementNode
389
390Statement * build_expr( ExpressionNode * ctl );
391
392struct IfCtrl {
393 IfCtrl( DeclarationNode * decl, ExpressionNode * condition ) :
394 init( decl ? new StatementNode( decl ) : nullptr ), condition( condition ) {}
395
396 StatementNode * init;
397 ExpressionNode * condition;
398};
399
400struct ForCtrl {
401 ForCtrl( ExpressionNode * expr, ExpressionNode * condition, ExpressionNode * change ) :
402 init( new StatementNode( build_expr( expr ) ) ), condition( condition ), change( change ) {}
403 ForCtrl( DeclarationNode * decl, ExpressionNode * condition, ExpressionNode * change ) :
404 init( new StatementNode( decl ) ), condition( condition ), change( change ) {}
405
406 StatementNode * init;
407 ExpressionNode * condition;
408 ExpressionNode * change;
409};
410
411Expression * build_if_control( IfCtrl * ctl, std::list< Statement * > & init );
412Statement * build_if( IfCtrl * ctl, StatementNode * then_stmt, StatementNode * else_stmt );
413Statement * build_switch( bool isSwitch, ExpressionNode * ctl, StatementNode * stmt );
414Statement * build_case( ExpressionNode * ctl );
415Statement * build_default();
416Statement * build_while( IfCtrl * ctl, StatementNode * stmt );
417Statement * build_do_while( ExpressionNode * ctl, StatementNode * stmt );
418Statement * build_for( ForCtrl * forctl, StatementNode * stmt );
419Statement * build_branch( BranchStmt::Type kind );
420Statement * build_branch( std::string * identifier, BranchStmt::Type kind );
421Statement * build_computedgoto( ExpressionNode * ctl );
422Statement * build_return( ExpressionNode * ctl );
423Statement * build_throw( ExpressionNode * ctl );
424Statement * build_resume( ExpressionNode * ctl );
425Statement * build_resume_at( ExpressionNode * ctl , ExpressionNode * target );
426Statement * build_try( StatementNode * try_stmt, StatementNode * catch_stmt, StatementNode * finally_stmt );
427Statement * build_catch( CatchStmt::Kind kind, DeclarationNode *decl, ExpressionNode *cond, StatementNode *body );
428Statement * build_finally( StatementNode * stmt );
429Statement * build_compound( StatementNode * first );
430Statement * build_asm( bool voltile, Expression * instruction, ExpressionNode * output = nullptr, ExpressionNode * input = nullptr, ExpressionNode * clobber = nullptr, LabelNode * gotolabels = nullptr );
431Statement * build_directive( std::string * directive );
432WaitForStmt * build_waitfor( ExpressionNode * target, StatementNode * stmt, ExpressionNode * when );
433WaitForStmt * build_waitfor( ExpressionNode * target, StatementNode * stmt, ExpressionNode * when, WaitForStmt * existing );
434WaitForStmt * build_waitfor_timeout( ExpressionNode * timeout, StatementNode * stmt, ExpressionNode * when );
435WaitForStmt * build_waitfor_timeout( ExpressionNode * timeout, StatementNode * stmt, ExpressionNode * when, StatementNode * else_stmt, ExpressionNode * else_when );
436Statement * build_with( ExpressionNode * exprs, StatementNode * stmt );
437
438//##############################################################################
439
440template< typename SynTreeType, typename NodeType, template< typename, typename...> class Container, typename... Args >
441void buildList( const NodeType * firstNode, Container< SynTreeType *, Args... > & outputList ) {
442 SemanticErrorException errors;
443 std::back_insert_iterator< Container< SynTreeType *, Args... > > out( outputList );
444 const NodeType * cur = firstNode;
445
446 while ( cur ) {
447 try {
448 SynTreeType * result = dynamic_cast< SynTreeType * >( maybeBuild< typename std::pointer_traits< decltype(cur->build())>::element_type >( cur ) );
449 if ( result ) {
450 result->location = cur->location;
451 * out++ = result;
452 } else {
453 assertf(false, "buildList unknown type");
454 } // if
455 } catch( SemanticErrorException & e ) {
456 errors.append( e );
457 } // try
458 cur = dynamic_cast< NodeType * >( cur->get_next() );
459 } // while
460 if ( ! errors.isEmpty() ) {
461 throw errors;
462 } // if
463}
464
465// in DeclarationNode.cc
466void buildList( const DeclarationNode * firstNode, std::list< Declaration * > & outputList );
467void buildList( const DeclarationNode * firstNode, std::list< DeclarationWithType * > & outputList );
468void buildTypeList( const DeclarationNode * firstNode, std::list< Type * > & outputList );
469
470template< typename SynTreeType, typename NodeType >
471void buildMoveList( const NodeType * firstNode, std::list< SynTreeType * > & outputList ) {
472 buildList( firstNode, outputList );
473 delete firstNode;
474}
475
476// in ParseNode.cc
477std::ostream & operator<<( std::ostream & out, const ParseNode * node );
478
479// Local Variables: //
480// tab-width: 4 //
481// mode: c++ //
482// compile-command: "make install" //
483// End: //
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