1 |
/* -*- c++ -*- |
2 |
* |
3 |
* Copyright (c) 2014 - 2016 Christian Schoenebeck and Andreas Persson |
4 |
* |
5 |
* http://www.linuxsampler.org |
6 |
* |
7 |
* This file is part of LinuxSampler and released under the same terms. |
8 |
* See README file for details. |
9 |
*/ |
10 |
|
11 |
// This header defines VM core implementation internal data types only used |
12 |
// inside the parser and core VM implementation of this source directory. Not |
13 |
// intended to be used in other source code parts (other source code |
14 |
// directories) of the sampler. |
15 |
|
16 |
#ifndef LS_INSTRPARSERTREE_H |
17 |
#define LS_INSTRPARSERTREE_H |
18 |
|
19 |
#include <vector> |
20 |
#include <iostream> |
21 |
#include <map> |
22 |
#include <set> |
23 |
#include "../common/global.h" |
24 |
#include "../common/Ref.h" |
25 |
#include "../common/ArrayList.h" |
26 |
#include "common.h" |
27 |
|
28 |
namespace LinuxSampler { |
29 |
|
30 |
class ParserContext; |
31 |
class ExecContext; |
32 |
|
33 |
enum StmtType_t { |
34 |
STMT_LEAF, |
35 |
STMT_LIST, |
36 |
STMT_BRANCH, |
37 |
STMT_LOOP, |
38 |
}; |
39 |
|
40 |
class Node { |
41 |
public: |
42 |
Node(); |
43 |
virtual ~Node(); |
44 |
virtual void dump(int level = 0) = 0; |
45 |
virtual bool isPolyphonic() const = 0; |
46 |
void printIndents(int n); |
47 |
}; |
48 |
typedef Ref<Node> NodeRef; |
49 |
|
50 |
class Expression : virtual public VMExpr, virtual public Node { |
51 |
public: |
52 |
virtual ExprType_t exprType() const = 0; |
53 |
virtual bool isConstExpr() const = 0; |
54 |
virtual String evalCastToStr() = 0; |
55 |
}; |
56 |
typedef Ref<Expression,Node> ExpressionRef; |
57 |
|
58 |
class IntExpr : virtual public VMIntExpr, virtual public Expression { |
59 |
public: |
60 |
ExprType_t exprType() const { return INT_EXPR; } |
61 |
virtual int evalInt() = 0; |
62 |
String evalCastToStr(); |
63 |
}; |
64 |
typedef Ref<IntExpr,Node> IntExprRef; |
65 |
|
66 |
class StringExpr : virtual public VMStringExpr, virtual public Expression { |
67 |
public: |
68 |
ExprType_t exprType() const { return STRING_EXPR; } |
69 |
virtual String evalStr() = 0; |
70 |
String evalCastToStr() { return evalStr(); } |
71 |
}; |
72 |
typedef Ref<StringExpr,Node> StringExprRef; |
73 |
|
74 |
class IntLiteral : virtual public IntExpr { |
75 |
int value; |
76 |
public: |
77 |
IntLiteral(int value) : value(value) { } |
78 |
int evalInt(); |
79 |
void dump(int level = 0); |
80 |
bool isConstExpr() const { return true; } |
81 |
bool isPolyphonic() const { return false; } |
82 |
}; |
83 |
typedef Ref<IntLiteral,Node> IntLiteralRef; |
84 |
|
85 |
class StringLiteral : virtual public StringExpr { |
86 |
public: |
87 |
String value; |
88 |
StringLiteral(const String& value) : value(value) { } |
89 |
bool isConstExpr() const { return true; } |
90 |
void dump(int level = 0); |
91 |
String evalStr() { return value; } |
92 |
bool isPolyphonic() const { return false; } |
93 |
}; |
94 |
typedef Ref<StringLiteral,Node> StringLiteralRef; |
95 |
|
96 |
class Args : virtual public VMFnArgs, virtual public Node { |
97 |
public: |
98 |
std::vector<ExpressionRef> args; |
99 |
void add(ExpressionRef arg) { args.push_back(arg); } |
100 |
void dump(int level = 0); |
101 |
int argsCount() const { return args.size(); } |
102 |
VMExpr* arg(int i) { return (i >= 0 && i < argsCount()) ? &*args.at(i) : NULL; } |
103 |
bool isPolyphonic() const; |
104 |
}; |
105 |
typedef Ref<Args,Node> ArgsRef; |
106 |
|
107 |
class Variable : virtual public Expression { |
108 |
public: |
109 |
virtual bool isConstExpr() const { return bConst; } |
110 |
virtual void assign(Expression* expr) = 0; |
111 |
protected: |
112 |
Variable(ParserContext* ctx, int _memPos, bool _bConst) |
113 |
: context(ctx), memPos(_memPos), bConst(_bConst) {} |
114 |
|
115 |
ParserContext* context; |
116 |
int memPos; |
117 |
bool bConst; |
118 |
}; |
119 |
typedef Ref<Variable,Node> VariableRef; |
120 |
|
121 |
class IntVariable : public Variable, virtual public IntExpr { |
122 |
bool polyphonic; |
123 |
public: |
124 |
IntVariable(ParserContext* ctx); |
125 |
void assign(Expression* expr); |
126 |
int evalInt(); |
127 |
void dump(int level = 0); |
128 |
bool isPolyphonic() const { return polyphonic; } |
129 |
protected: |
130 |
IntVariable(ParserContext* ctx, bool polyphonic, bool bConst, int size = 1); |
131 |
}; |
132 |
typedef Ref<IntVariable,Node> IntVariableRef; |
133 |
|
134 |
class ConstIntVariable : public IntVariable { |
135 |
public: |
136 |
int value; |
137 |
|
138 |
ConstIntVariable(int value); |
139 |
//ConstIntVariable(ParserContext* ctx, int value = 0); |
140 |
void assign(Expression* expr); |
141 |
int evalInt(); |
142 |
void dump(int level = 0); |
143 |
}; |
144 |
typedef Ref<ConstIntVariable,Node> ConstIntVariableRef; |
145 |
|
146 |
class BuiltInIntVariable : public IntVariable { |
147 |
String name; |
148 |
VMIntRelPtr* ptr; |
149 |
public: |
150 |
BuiltInIntVariable(const String& name, VMIntRelPtr* ptr); |
151 |
void assign(Expression* expr); |
152 |
int evalInt(); |
153 |
void dump(int level = 0); |
154 |
}; |
155 |
typedef Ref<BuiltInIntVariable,Node> BuiltInIntVariableRef; |
156 |
|
157 |
class PolyphonicIntVariable : public IntVariable { |
158 |
public: |
159 |
PolyphonicIntVariable(ParserContext* ctx); |
160 |
void dump(int level = 0); |
161 |
}; |
162 |
typedef Ref<PolyphonicIntVariable,Node> PolyphonicIntVariableRef; |
163 |
|
164 |
class IntArrayVariable : public Variable, virtual public VMIntArrayExpr { |
165 |
ArrayList<int> values; |
166 |
public: |
167 |
IntArrayVariable(ParserContext* ctx, int size); |
168 |
IntArrayVariable(ParserContext* ctx, int size, ArgsRef values); |
169 |
void assign(Expression* expr) {} // ignore scalar assignment |
170 |
String evalCastToStr() { return ""; } // ignore scalar cast to string |
171 |
ExprType_t exprType() const { return INT_ARR_EXPR; } |
172 |
virtual int arraySize() const { return values.size(); } |
173 |
virtual int evalIntElement(uint i); |
174 |
virtual void assignIntElement(uint i, int value); |
175 |
void dump(int level = 0); |
176 |
bool isPolyphonic() const { return false; } |
177 |
protected: |
178 |
IntArrayVariable(ParserContext* ctx, bool bConst); |
179 |
}; |
180 |
typedef Ref<IntArrayVariable,Node> IntArrayVariableRef; |
181 |
|
182 |
class BuiltInIntArrayVariable : public IntArrayVariable { |
183 |
String name; |
184 |
VMInt8Array* array; |
185 |
public: |
186 |
BuiltInIntArrayVariable(const String& name, VMInt8Array* array); |
187 |
int arraySize() const { return array->size; } |
188 |
int evalIntElement(uint i); |
189 |
void assignIntElement(uint i, int value); |
190 |
void dump(int level = 0); |
191 |
}; |
192 |
typedef Ref<BuiltInIntArrayVariable,Node> BuiltInIntArrayVariableRef; |
193 |
|
194 |
class IntArrayElement : public IntVariable { |
195 |
IntArrayVariableRef array; |
196 |
IntExprRef index; |
197 |
public: |
198 |
IntArrayElement(IntArrayVariableRef array, IntExprRef arrayIndex); |
199 |
void assign(Expression* expr); |
200 |
int evalInt(); |
201 |
void dump(int level = 0); |
202 |
}; |
203 |
typedef Ref<IntArrayElement,Node> IntArrayElementRef; |
204 |
|
205 |
class StringVariable : public Variable, virtual public StringExpr { |
206 |
public: |
207 |
StringVariable(ParserContext* ctx); |
208 |
void assign(Expression* expr); |
209 |
String evalStr(); |
210 |
void dump(int level = 0); |
211 |
bool isPolyphonic() const { return false; } |
212 |
protected: |
213 |
StringVariable(ParserContext* ctx, bool bConst); |
214 |
}; |
215 |
typedef Ref<StringVariable,Node> StringVariableRef; |
216 |
|
217 |
class ConstStringVariable : public StringVariable { |
218 |
public: |
219 |
String value; |
220 |
|
221 |
ConstStringVariable(ParserContext* ctx, String value = ""); |
222 |
void assign(Expression* expr); |
223 |
String evalStr(); |
224 |
void dump(int level = 0); |
225 |
}; |
226 |
typedef Ref<ConstStringVariable,Node> ConstStringVariableRef; |
227 |
|
228 |
class BinaryOp : virtual public Expression { |
229 |
protected: |
230 |
ExpressionRef lhs; |
231 |
ExpressionRef rhs; |
232 |
public: |
233 |
BinaryOp(ExpressionRef lhs, ExpressionRef rhs) : lhs(lhs), rhs(rhs) { } |
234 |
bool isConstExpr() const { return lhs->isConstExpr() && rhs->isConstExpr(); } |
235 |
bool isPolyphonic() const { return lhs->isPolyphonic() || rhs->isPolyphonic(); } |
236 |
}; |
237 |
typedef Ref<BinaryOp,Node> BinaryOpRef; |
238 |
|
239 |
class Add : virtual public BinaryOp, virtual public IntExpr { |
240 |
public: |
241 |
Add(IntExprRef lhs, IntExprRef rhs) : BinaryOp(lhs, rhs) { } |
242 |
int evalInt(); |
243 |
void dump(int level = 0); |
244 |
}; |
245 |
typedef Ref<Add,Node> AddRef; |
246 |
|
247 |
class Sub : virtual public BinaryOp, virtual public IntExpr { |
248 |
public: |
249 |
Sub(IntExprRef lhs, IntExprRef rhs) : BinaryOp(lhs, rhs) { } |
250 |
int evalInt(); |
251 |
void dump(int level = 0); |
252 |
}; |
253 |
typedef Ref<Sub,Node> SubRef; |
254 |
|
255 |
class Mul : virtual public BinaryOp, virtual public IntExpr { |
256 |
public: |
257 |
Mul(IntExprRef lhs, IntExprRef rhs) : BinaryOp(lhs, rhs) { } |
258 |
int evalInt(); |
259 |
void dump(int level = 0); |
260 |
}; |
261 |
typedef Ref<Mul,Node> MulRef; |
262 |
|
263 |
class Div : virtual public BinaryOp, virtual public IntExpr { |
264 |
public: |
265 |
Div(IntExprRef lhs, IntExprRef rhs) : BinaryOp(lhs, rhs) { } |
266 |
int evalInt(); |
267 |
void dump(int level = 0); |
268 |
}; |
269 |
typedef Ref<Div,Node> DivRef; |
270 |
|
271 |
class Mod : virtual public BinaryOp, virtual public IntExpr { |
272 |
public: |
273 |
Mod(IntExprRef lhs, IntExprRef rhs) : BinaryOp(lhs, rhs) { } |
274 |
int evalInt(); |
275 |
void dump(int level = 0); |
276 |
}; |
277 |
typedef Ref<Mod,Node> ModRef; |
278 |
|
279 |
class Statement : virtual public Node { |
280 |
public: |
281 |
virtual StmtType_t statementType() const = 0; |
282 |
}; |
283 |
typedef Ref<Statement,Node> StatementRef; |
284 |
|
285 |
// Just used by parser to avoid "not a statement" parser warning, will be |
286 |
// filtered out by parser. So it will not be part of the VM tree after parsing. |
287 |
class NoOperation : public Statement { |
288 |
public: |
289 |
NoOperation() : Statement() {} |
290 |
StmtType_t statementType() const { return STMT_LEAF; } |
291 |
void dump(int level = 0) {} |
292 |
bool isPolyphonic() const { return false; } |
293 |
}; |
294 |
typedef Ref<NoOperation,Node> NoOperationRef; |
295 |
|
296 |
bool isNoOperation(StatementRef statement); |
297 |
|
298 |
class LeafStatement : public Statement { |
299 |
public: |
300 |
virtual StmtFlags_t exec() = 0; |
301 |
virtual StmtType_t statementType() const { return STMT_LEAF; } |
302 |
}; |
303 |
typedef Ref<LeafStatement,Node> LeafStatementRef; |
304 |
|
305 |
class Statements : public Statement { |
306 |
std::vector<StatementRef> args; |
307 |
public: |
308 |
void add(StatementRef arg) { args.push_back(arg); } |
309 |
void dump(int level = 0); |
310 |
StmtType_t statementType() const { return STMT_LIST; } |
311 |
virtual Statement* statement(uint i); |
312 |
bool isPolyphonic() const; |
313 |
}; |
314 |
typedef Ref<Statements,Node> StatementsRef; |
315 |
|
316 |
class BranchStatement : public Statement { |
317 |
public: |
318 |
StmtType_t statementType() const { return STMT_BRANCH; } |
319 |
virtual int evalBranch() = 0; |
320 |
virtual Statements* branch(uint i) const = 0; |
321 |
}; |
322 |
|
323 |
class FunctionCall : virtual public LeafStatement, virtual public IntExpr, virtual public StringExpr { |
324 |
String functionName; |
325 |
ArgsRef args; |
326 |
VMFunction* fn; |
327 |
public: |
328 |
FunctionCall(const char* function, ArgsRef args, VMFunction* fn) : |
329 |
functionName(function), args(args), fn(fn) { } |
330 |
void dump(int level = 0); |
331 |
StmtFlags_t exec(); |
332 |
int evalInt(); |
333 |
String evalStr(); |
334 |
bool isConstExpr() const { return false; } |
335 |
ExprType_t exprType() const; |
336 |
String evalCastToStr(); |
337 |
bool isPolyphonic() const { return args->isPolyphonic(); } |
338 |
protected: |
339 |
VMFnResult* execVMFn(); |
340 |
}; |
341 |
typedef Ref<FunctionCall,Node> FunctionCallRef; |
342 |
|
343 |
class EventHandler : virtual public Statements, virtual public VMEventHandler { |
344 |
StatementsRef statements; |
345 |
bool usingPolyphonics; |
346 |
public: |
347 |
void dump(int level = 0); |
348 |
StmtFlags_t exec(); |
349 |
EventHandler(StatementsRef statements); |
350 |
Statement* statement(uint i) { return statements->statement(i); } |
351 |
bool isPolyphonic() const { return usingPolyphonics; } |
352 |
}; |
353 |
typedef Ref<EventHandler,Node> EventHandlerRef; |
354 |
|
355 |
class OnNote : public EventHandler { |
356 |
public: |
357 |
OnNote(StatementsRef statements) : EventHandler(statements) {} |
358 |
String eventHandlerName() const { return "note"; } |
359 |
}; |
360 |
typedef Ref<OnNote,Node> OnNoteRef; |
361 |
|
362 |
class OnInit : public EventHandler { |
363 |
public: |
364 |
OnInit(StatementsRef statements) : EventHandler(statements) {} |
365 |
String eventHandlerName() const { return "init"; } |
366 |
}; |
367 |
typedef Ref<OnInit,Node> OnInitRef; |
368 |
|
369 |
class OnRelease : public EventHandler { |
370 |
public: |
371 |
OnRelease(StatementsRef statements) : EventHandler(statements) {} |
372 |
String eventHandlerName() const { return "release"; } |
373 |
}; |
374 |
typedef Ref<OnRelease,Node> OnReleaseRef; |
375 |
|
376 |
class OnController : public EventHandler { |
377 |
public: |
378 |
OnController(StatementsRef statements) : EventHandler(statements) {} |
379 |
String eventHandlerName() const { return "controller"; } |
380 |
}; |
381 |
typedef Ref<OnController,Node> OnControllerRef; |
382 |
|
383 |
class EventHandlers : virtual public Node { |
384 |
std::vector<EventHandlerRef> args; |
385 |
public: |
386 |
EventHandlers(); |
387 |
~EventHandlers(); |
388 |
void add(EventHandlerRef arg); |
389 |
void dump(int level = 0); |
390 |
int evalInt() { return 0; } |
391 |
EventHandler* eventHandlerByName(const String& name) const; |
392 |
EventHandler* eventHandler(uint index) const; |
393 |
inline uint size() const { return args.size(); } |
394 |
bool isPolyphonic() const; |
395 |
}; |
396 |
typedef Ref<EventHandlers,Node> EventHandlersRef; |
397 |
|
398 |
class Assignment : public LeafStatement { |
399 |
protected: |
400 |
VariableRef variable; |
401 |
ExpressionRef value; |
402 |
public: |
403 |
Assignment(VariableRef variable, ExpressionRef value); |
404 |
void dump(int level = 0); |
405 |
StmtFlags_t exec(); |
406 |
bool isPolyphonic() const { return (variable && variable->isPolyphonic()) || (value && value->isPolyphonic()); } |
407 |
}; |
408 |
typedef Ref<Assignment,Node> AssignmentRef; |
409 |
|
410 |
class If : public BranchStatement { |
411 |
IntExprRef condition; |
412 |
StatementsRef ifStatements; |
413 |
StatementsRef elseStatements; |
414 |
public: |
415 |
If(IntExprRef condition, StatementsRef ifStatements, StatementsRef elseStatements) : |
416 |
condition(condition), ifStatements(ifStatements), elseStatements(elseStatements) { } |
417 |
If(IntExprRef condition, StatementsRef statements) : |
418 |
condition(condition), ifStatements(statements) { } |
419 |
void dump(int level = 0); |
420 |
int evalBranch(); |
421 |
Statements* branch(uint i) const; |
422 |
bool isPolyphonic() const; |
423 |
}; |
424 |
typedef Ref<If,Node> IfRef; |
425 |
|
426 |
struct CaseBranch { |
427 |
IntExprRef from; |
428 |
IntExprRef to; |
429 |
StatementsRef statements; |
430 |
}; |
431 |
|
432 |
typedef std::vector<CaseBranch> CaseBranches; |
433 |
|
434 |
class SelectCase : public BranchStatement { |
435 |
IntExprRef select; |
436 |
CaseBranches branches; |
437 |
public: |
438 |
SelectCase(IntExprRef select, const CaseBranches& branches) : select(select), branches(branches) { } |
439 |
void dump(int level = 0); |
440 |
int evalBranch(); |
441 |
Statements* branch(uint i) const; |
442 |
//void addBranch(IntExprRef condition, StatementsRef statements); |
443 |
//void addBranch(IntExprRef from, IntExprRef to, StatementsRef statements); |
444 |
//void addBranch(CaseBranchRef branch); |
445 |
//void addBranches(CaseBranchesRef branches); |
446 |
bool isPolyphonic() const; |
447 |
}; |
448 |
typedef Ref<SelectCase,Node> SelectCaseRef; |
449 |
|
450 |
class While : public Statement { |
451 |
IntExprRef m_condition; |
452 |
StatementsRef m_statements; |
453 |
public: |
454 |
While(IntExprRef condition, StatementsRef statements) : |
455 |
m_condition(condition), m_statements(statements) {} |
456 |
StmtType_t statementType() const { return STMT_LOOP; } |
457 |
void dump(int level = 0); |
458 |
bool evalLoopStartCondition(); |
459 |
Statements* statements() const; |
460 |
bool isPolyphonic() const { return m_condition->isPolyphonic() || m_statements->isPolyphonic(); } |
461 |
}; |
462 |
|
463 |
class Neg : public IntExpr { |
464 |
IntExprRef expr; |
465 |
public: |
466 |
Neg(IntExprRef expr) : expr(expr) { } |
467 |
int evalInt() { return (expr) ? -expr->evalInt() : 0; } |
468 |
void dump(int level = 0); |
469 |
bool isConstExpr() const { return expr->isConstExpr(); } |
470 |
bool isPolyphonic() const { return expr->isPolyphonic(); } |
471 |
}; |
472 |
typedef Ref<Neg,Node> NegRef; |
473 |
|
474 |
class ConcatString : public StringExpr { |
475 |
ExpressionRef lhs; |
476 |
ExpressionRef rhs; |
477 |
public: |
478 |
ConcatString(ExpressionRef lhs, ExpressionRef rhs) : lhs(lhs), rhs(rhs) {} |
479 |
String evalStr(); |
480 |
void dump(int level = 0); |
481 |
bool isConstExpr() const; |
482 |
bool isPolyphonic() const { return lhs->isPolyphonic() || rhs->isPolyphonic(); } |
483 |
}; |
484 |
typedef Ref<ConcatString,Node> ConcatStringRef; |
485 |
|
486 |
class Relation : public IntExpr { |
487 |
public: |
488 |
enum Type { |
489 |
LESS_THAN, |
490 |
GREATER_THAN, |
491 |
LESS_OR_EQUAL, |
492 |
GREATER_OR_EQUAL, |
493 |
EQUAL, |
494 |
NOT_EQUAL |
495 |
}; |
496 |
Relation(IntExprRef lhs, Type type, IntExprRef rhs) : |
497 |
lhs(lhs), rhs(rhs), type(type) {} |
498 |
int evalInt(); |
499 |
void dump(int level = 0); |
500 |
bool isConstExpr() const; |
501 |
bool isPolyphonic() const { return lhs->isPolyphonic() || rhs->isPolyphonic(); } |
502 |
private: |
503 |
IntExprRef lhs; |
504 |
IntExprRef rhs; |
505 |
Type type; |
506 |
}; |
507 |
typedef Ref<Relation,Node> RelationRef; |
508 |
|
509 |
class Or : virtual public BinaryOp, virtual public IntExpr { |
510 |
public: |
511 |
Or(IntExprRef lhs, IntExprRef rhs) : BinaryOp(lhs,rhs) {} |
512 |
int evalInt(); |
513 |
void dump(int level = 0); |
514 |
}; |
515 |
typedef Ref<Or,Node> OrRef; |
516 |
|
517 |
class And : virtual public BinaryOp, virtual public IntExpr { |
518 |
public: |
519 |
And(IntExprRef lhs, IntExprRef rhs) : BinaryOp(lhs,rhs) {} |
520 |
int evalInt(); |
521 |
void dump(int level = 0); |
522 |
}; |
523 |
typedef Ref<And,Node> AndRef; |
524 |
|
525 |
class Not : virtual public IntExpr { |
526 |
IntExprRef expr; |
527 |
public: |
528 |
Not(IntExprRef expr) : expr(expr) {} |
529 |
int evalInt() { return !expr->evalInt(); } |
530 |
void dump(int level = 0); |
531 |
bool isConstExpr() const { return expr->isConstExpr(); } |
532 |
bool isPolyphonic() const { return expr->isPolyphonic(); } |
533 |
}; |
534 |
typedef Ref<Not,Node> NotRef; |
535 |
|
536 |
class ParserContext : public VMParserContext { |
537 |
public: |
538 |
struct Error { |
539 |
String txt; |
540 |
int line; |
541 |
}; |
542 |
typedef Error Warning; |
543 |
|
544 |
void* scanner; |
545 |
std::istream* is; |
546 |
std::vector<ParserIssue> vErrors; |
547 |
std::vector<ParserIssue> vWarnings; |
548 |
std::vector<ParserIssue> vIssues; |
549 |
|
550 |
std::set<String> builtinPreprocessorConditions; |
551 |
std::set<String> userPreprocessorConditions; |
552 |
|
553 |
std::map<String,VariableRef> vartable; |
554 |
int globalIntVarCount; |
555 |
int globalStrVarCount; |
556 |
int polyphonicIntVarCount; |
557 |
|
558 |
EventHandlersRef handlers; |
559 |
|
560 |
OnInitRef onInit; |
561 |
OnNoteRef onNote; |
562 |
OnReleaseRef onRelease; |
563 |
OnControllerRef onController; |
564 |
|
565 |
ArrayList<int>* globalIntMemory; |
566 |
ArrayList<String>* globalStrMemory; |
567 |
int requiredMaxStackSize; |
568 |
|
569 |
VMFunctionProvider* functionProvider; |
570 |
|
571 |
ExecContext* execContext; |
572 |
|
573 |
ParserContext(VMFunctionProvider* parent) : |
574 |
scanner(NULL), is(NULL), |
575 |
globalIntVarCount(0), globalStrVarCount(0), polyphonicIntVarCount(0), |
576 |
globalIntMemory(NULL), globalStrMemory(NULL), requiredMaxStackSize(-1), |
577 |
functionProvider(parent), execContext(NULL) |
578 |
{ |
579 |
} |
580 |
virtual ~ParserContext(); |
581 |
VariableRef globalVar(const String& name); |
582 |
IntVariableRef globalIntVar(const String& name); |
583 |
StringVariableRef globalStrVar(const String& name); |
584 |
VariableRef variableByName(const String& name); |
585 |
void addErr(int line, const char* txt); |
586 |
void addWrn(int line, const char* txt); |
587 |
void createScanner(std::istream* is); |
588 |
void destroyScanner(); |
589 |
bool setPreprocessorCondition(const char* name); |
590 |
bool resetPreprocessorCondition(const char* name); |
591 |
bool isPreprocessorConditionSet(const char* name); |
592 |
std::vector<ParserIssue> issues() const OVERRIDE; |
593 |
std::vector<ParserIssue> errors() const OVERRIDE; |
594 |
std::vector<ParserIssue> warnings() const OVERRIDE; |
595 |
VMEventHandler* eventHandler(uint index) OVERRIDE; |
596 |
VMEventHandler* eventHandlerByName(const String& name) OVERRIDE; |
597 |
void registerBuiltInConstIntVariables(const std::map<String,int>& vars); |
598 |
void registerBuiltInIntVariables(const std::map<String,VMIntRelPtr*>& vars); |
599 |
void registerBuiltInIntArrayVariables(const std::map<String,VMInt8Array*>& vars); |
600 |
}; |
601 |
|
602 |
class ExecContext : public VMExecContext { |
603 |
public: |
604 |
struct StackFrame { |
605 |
Statement* statement; |
606 |
int subindex; |
607 |
|
608 |
StackFrame() { |
609 |
statement = NULL; |
610 |
subindex = -1; |
611 |
} |
612 |
}; |
613 |
|
614 |
ArrayList<int> polyphonicIntMemory; |
615 |
VMExecStatus_t status; |
616 |
ArrayList<StackFrame> stack; |
617 |
int stackFrame; |
618 |
int suspendMicroseconds; |
619 |
|
620 |
ExecContext() : |
621 |
status(VM_EXEC_NOT_RUNNING), stackFrame(-1), suspendMicroseconds(0) {} |
622 |
|
623 |
virtual ~ExecContext() {} |
624 |
|
625 |
inline void pushStack(Statement* stmt) { |
626 |
stackFrame++; |
627 |
//printf("pushStack() -> %d\n", stackFrame); |
628 |
if (stackFrame >= stack.size()) return; |
629 |
stack[stackFrame].statement = stmt; |
630 |
stack[stackFrame].subindex = 0; |
631 |
} |
632 |
|
633 |
inline void popStack() { |
634 |
stack[stackFrame].statement = NULL; |
635 |
stack[stackFrame].subindex = -1; |
636 |
stackFrame--; |
637 |
//printf("popStack() -> %d\n", stackFrame); |
638 |
} |
639 |
|
640 |
inline void reset() { |
641 |
stack[0].statement = NULL; |
642 |
stack[0].subindex = -1; |
643 |
stackFrame = -1; |
644 |
} |
645 |
|
646 |
int suspensionTimeMicroseconds() const OVERRIDE { |
647 |
return suspendMicroseconds; |
648 |
} |
649 |
}; |
650 |
|
651 |
} // namespace LinuxSampler |
652 |
|
653 |
#endif // LS_INSTRPARSERTREE_H |