Package org.eclipse.jdt.internal.compiler.impl

Examples of org.eclipse.jdt.internal.compiler.impl.Constant

544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
      }
      break;
    case Binding.LOCAL : // assigning to a local variable (cannot assign to outer local)
      LocalVariableBinding localBinding = (LocalVariableBinding) this.binding;
      // using incr bytecode if possible
      Constant assignConstant;
      switch (localBinding.type.id) {
        case T_JavaLangString :
          codeStream.generateStringConcatenationAppend(currentScope, this, expression);
          if (valueRequired) {
            codeStream.dup();
          }
          codeStream.store(localBinding, false);
          return;
        case T_int :
          assignConstant = expression.constant;
          if (localBinding.resolvedPosition == -1) {
            if (valueRequired) {
              /*
               * restart code gen because we either:
               * - need the value
               * - the constant can have potential side-effect
               */
              localBinding.useFlag = LocalVariableBinding.USED;
              throw new AbortMethod(CodeStream.RESTART_CODE_GEN_FOR_UNUSED_LOCALS_MODE, null);
            } else if (assignConstant == Constant.NotAConstant) {
              // we only need to generate the value of the expression's constant if it is not a constant expression
              expression.generateCode(currentScope, codeStream, false);
            }
            return;
          }
          if ((assignConstant != Constant.NotAConstant)
              && (assignConstant.typeID() != TypeIds.T_float) // only for integral types
              && (assignConstant.typeID() != TypeIds.T_double)) { // TODO (philippe) is this test needed ?
            switch (operator) {
              case PLUS :
                int increment  = assignConstant.intValue();
                if (increment != (short) increment) break; // not representable as a 16-bits value
                codeStream.iinc(localBinding.resolvedPosition, increment);
                if (valueRequired) {
                  codeStream.load(localBinding);
                }
                return;
              case MINUS :
                increment  = -assignConstant.intValue();
                if (increment != (short) increment) break; // not representable as a 16-bits value
                codeStream.iinc(localBinding.resolvedPosition, increment);
                if (valueRequired) {
                  codeStream.load(localBinding);
                }
View Full Code Here
185
186
187
188
189
190
191
192
193
194
195
  uniqueKey[index++] = ')';
  System.arraycopy(returnTypeKey, 0, uniqueKey, index, returnTypeLength);
  return uniqueKey;
}
public Constant constant() {
  Constant fieldConstant = this.constant;
  if (fieldConstant == null) {
    if (isFinal()) {
      //The field has not been yet type checked.
      //It also means that the field is not coming from a class that
      //has already been compiled. It can only be from a class within
View Full Code Here
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
        if (value instanceof ArrayInitializer) {
          ArrayInitializer initializer = (ArrayInitializer) value;
          Expression[] inits = initializer.expressions;
          if (inits != null) {
            for (int j = 0, initsLength = inits.length; j < initsLength; j++) {
              Constant cst = inits[j].constant;
              if (cst != Constant.NotAConstant && cst.typeID() == T_JavaLangString) {
                IrritantSet irritants = CompilerOptions.warningTokenToIrritants(cst.stringValue());
                if (irritants != null) {
                  if (suppressWarningIrritants == null) {
                    suppressWarningIrritants = new IrritantSet(irritants);
                  } else if (suppressWarningIrritants.set(irritants) == null) {
                      scope.problemReporter().unusedWarningToken(inits[j]);
                  }
                } else {
                  scope.problemReporter().unhandledWarningToken(inits[j]);
                }
              }
            }
          }
        } else {
          Constant cst = value.constant;
          if (cst != Constant.NotAConstant && cst.typeID() == T_JavaLangString) {
            IrritantSet irritants = CompilerOptions.warningTokenToIrritants(cst.stringValue());
            if (irritants != null) {
              suppressWarningIrritants = new IrritantSet(irritants);
              // TODO: should check for unused warning token against enclosing annotation as well ?
            } else {
              scope.problemReporter().unhandledWarningToken(value);
View Full Code Here
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
        } else {
          this.stringConstants = new String[length];
        }
        int counter = 0;
        for (int i = 0; i < length; i++) {
          Constant constant;
          final Statement statement = this.statements[i];
          if ((constant = statement.resolveCase(this.scope, expressionType, this)) != Constant.NotAConstant) {
            if (!isStringSwitch) {
              int key = constant.intValue();
              //----check for duplicate case statement------------
              for (int j = 0; j < counter; j++) {
                if (this.constants[j] == key) {
                  reportDuplicateCase((CaseStatement) statement, this.cases[j], length);
                }
              }
              this.constants[counter++] = key;
            } else {
              String key = constant.stringValue();
              //----check for duplicate case statement------------
              for (int j = 0; j < counter; j++) {
                if (this.stringConstants[j].equals(key)) {
                  reportDuplicateCase((CaseStatement) statement, this.cases[j], length);
                }
View Full Code Here
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
}

public FlowInfo analyseCode(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo) {
  this.preAssertInitStateIndex = currentScope.methodScope().recordInitializationStates(flowInfo);

  Constant cst = this.assertExpression.optimizedBooleanConstant();
  if ((this.assertExpression.implicitConversion & TypeIds.UNBOXING) != 0) {
    this.assertExpression.checkNPE(currentScope, flowContext, flowInfo);
  }
  boolean isOptimizedTrueAssertion = cst != Constant.NotAConstant && cst.booleanValue() == true;
  boolean isOptimizedFalseAssertion = cst != Constant.NotAConstant && cst.booleanValue() == false;
 
  flowContext.tagBits |= FlowContext.HIDE_NULL_COMPARISON_WARNING;
  FlowInfo conditionFlowInfo = this.assertExpression.analyseCode(currentScope, flowContext, flowInfo.copy());
  flowContext.tagBits &= ~FlowContext.HIDE_NULL_COMPARISON_WARNING;
  UnconditionalFlowInfo assertWhenTrueInfo = conditionFlowInfo.initsWhenTrue().unconditionalInits();
View Full Code Here
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
              if (value instanceof ArrayInitializer) {
                ArrayInitializer initializer = (ArrayInitializer) value;
                Expression[] inits = initializer.expressions;
                if (inits != null) {
                  for (int iToken = 0, tokenCount = inits.length; iToken < tokenCount; iToken++) {
                    Constant cst = inits[iToken].constant;
                    if (cst != Constant.NotAConstant && cst.typeID() == TypeIds.T_JavaLangString) {
                      IrritantSet tokenIrritants = CompilerOptions.warningTokenToIrritants(cst.stringValue());
                      if (tokenIrritants != null
                          && !tokenIrritants.areAllSet() // no complaint against @SuppressWarnings("all")
                          && options.isAnyEnabled(tokenIrritants) // if irritant is effectively enabled
                          && (foundIrritants[iSuppress] == null || !foundIrritants[iSuppress].isAnySet(tokenIrritants))) { // if irritant had no matching problem
                        if (unusedWarningTokenIsWarning) {
                          int start = value.sourceStart, end = value.sourceEnd;
                          nextSuppress: for (int jSuppress = iSuppress - 1; jSuppress >= 0; jSuppress--) {
                            long position = this.suppressWarningScopePositions[jSuppress];
                            int startSuppress = (int) (position >>> 32);
                            int endSuppress = (int) position;
                            if (start < startSuppress) continue nextSuppress;
                            if (end > endSuppress) continue nextSuppress;
                            if (this.suppressWarningIrritants[jSuppress].areAllSet()) break pairLoop; // suppress all?
                          }
                        }
                        this.scope.problemReporter().unusedWarningToken(inits[iToken]);
                      }
                    }
                  }
                }
              } else {
                Constant cst = value.constant;
                if (cst != Constant.NotAConstant && cst.typeID() == T_JavaLangString) {
                  IrritantSet tokenIrritants = CompilerOptions.warningTokenToIrritants(cst.stringValue());
                  if (tokenIrritants != null
                      && !tokenIrritants.areAllSet() // no complaint against @SuppressWarnings("all")
                      && options.isAnyEnabled(tokenIrritants) // if irritant is effectively enabled
                      && (foundIrritants[iSuppress] == null || !foundIrritants[iSuppress].isAnySet(tokenIrritants))) { // if irritant had no matching problem
                    if (unusedWarningTokenIsWarning) {
View Full Code Here
309
310
311
312
313
314
315
316
317
318
319
    }
  } else {
    FieldBinding lastFieldBinding = generateReadSequence(currentScope, codeStream);
    if (lastFieldBinding != null) {
      boolean isStatic = lastFieldBinding.isStatic();
      Constant fieldConstant = lastFieldBinding.constant();
      if (fieldConstant != Constant.NotAConstant) {
        if (!isStatic){
          codeStream.invokeObjectGetClass();
          codeStream.pop();
        }
View Full Code Here
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
      lastGenericCast = null;
      LocalVariableBinding localBinding = (LocalVariableBinding) this.binding;
      lastReceiverType = localBinding.type;
      if (!needValue) break; // no value needed
      // regular local variable read
      Constant localConstant = localBinding.constant();
      if (localConstant != Constant.NotAConstant) {
        codeStream.generateConstant(localConstant, 0);
        // no implicit conversion
      } else {
        // outer local?
        if ((this.bits & ASTNode.DepthMASK) != 0) {
          // outer local can be reached either through a synthetic arg or a synthetic field
          VariableBinding[] path = currentScope.getEmulationPath(localBinding);
          codeStream.generateOuterAccess(path, this, localBinding, currentScope);
        } else {
          codeStream.load(localBinding);
        }
      }
      break;
    default : // should not occur
      return null;
  }

  // all intermediate field accesses are read accesses
  // only the last field binding is a write access
  int positionsLength = this.sourcePositions.length;
  FieldBinding initialFieldBinding = lastFieldBinding; // can be null if initial was a local binding
  if (this.otherBindings != null) {
    for (int i = 0; i < otherBindingsCount; i++) {
      int pc = codeStream.position;
      FieldBinding nextField = this.otherBindings[i].original();
      TypeBinding nextGenericCast = this.otherGenericCasts == null ? null : this.otherGenericCasts[i];
      if (lastFieldBinding != null) {
        needValue = !nextField.isStatic();
        Constant fieldConstant = lastFieldBinding.constant();
        if (fieldConstant != Constant.NotAConstant) {
          if (i > 0 && !lastFieldBinding.isStatic()) {
            codeStream.invokeObjectGetClass(); // perform null check
            codeStream.pop();
          }
View Full Code Here
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
      }
    }
    this.preCondInitStateIndex =
      currentScope.methodScope().recordInitializationStates(flowInfo);

    Constant cst = this.condition == null ? null : this.condition.constant;
    boolean isConditionTrue = cst == null || (cst != Constant.NotAConstant && cst.booleanValue() == true);
    boolean isConditionFalse = cst != null && (cst != Constant.NotAConstant && cst.booleanValue() == false);

    cst = this.condition == null ? null : this.condition.optimizedBooleanConstant();
    boolean isConditionOptimizedTrue = cst == null ||  (cst != Constant.NotAConstant && cst.booleanValue() == true);
    boolean isConditionOptimizedFalse = cst != null && (cst != Constant.NotAConstant && cst.booleanValue() == false);
   
    // process the condition
    LoopingFlowContext condLoopContext = null;
    FlowInfo condInfo = flowInfo.nullInfoLessUnconditionalCopy();
    if (this.condition != null) {
View Full Code Here
249
250
251
252
253
254
255
256
257
258
259
260
    if (this.initializations != null) {
      for (int i = 0, max = this.initializations.length; i < max; i++) {
        this.initializations[i].generateCode(this.scope, codeStream);
      }
    }
    Constant cst = this.condition == null ? null : this.condition.optimizedBooleanConstant();
    boolean isConditionOptimizedFalse = cst != null && (cst != Constant.NotAConstant && cst.booleanValue() == false);
    if (isConditionOptimizedFalse) {
      this.condition.generateCode(this.scope, codeStream, false);
      // May loose some local variable initializations : affecting the local variable attributes
      if ((this.bits & ASTNode.NeededScope) != 0) {
        codeStream.exitUserScope(this.scope);
View Full Code Here
TOP

Related Classes of org.eclipse.jdt.internal.compiler.impl.Constant

  • com.android.tools.lint.EcjParser$EcjResolvedField
  • com.google.gwt.dev.javac.TypeOracleMediator
  • com.google.gwt.dev.jjs.impl.GenerateJavaAST
  • com.google.gwt.dev.jjs.impl.GwtAstBuilder
  • org.eclipse.jdt.core.dom.DefaultBindingResolver
  • org.eclipse.jdt.core.dom.MemberValuePairBinding
  • org.eclipse.jdt.core.dom.VariableBinding
  • org.eclipse.jdt.internal.compiler.apt.model.VariableElementImpl
  • org.eclipse.jdt.internal.compiler.ast.Annotation
  • org.eclipse.jdt.internal.compiler.ast.AssertStatement
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.