Examples of org.aspectj.org.eclipse.jdt.core.CompletionProposal

Package org.aspectj.org.eclipse.jdt.core

Examples of org.aspectj.org.eclipse.jdt.core.CompletionProposal

org.aspectj.org.eclipse.jdt.core.CompletionProposal
Completion proposal.
In typical usage, the user working in a Java code editor issues a code assist command. This command results in a call to ICodeAssist.codeComplete(position, completionRequestor) passing the current position in the source code. The code assist engine analyzes the code in the buffer, determines what kind of Java language construct is at that position, and proposes ways to complete that construct. These proposals are instances of the class CompletionProposal. These proposals, perhaps after sorting and filtering, are presented to the user to make a choice.

The proposal is as follows: insert the {@linkplain #getCompletion() completion string} into thesource file buffer, replacing the characters between {@linkplain #getReplaceStart() the start}and {@linkplain #getReplaceEnd() end}. The string can be arbitrary; for example, it might include not only the name of a method but a set of parentheses. Moreover, the source range may include source positions before or after the source position where ICodeAssist.codeComplete was invoked. The rest of the information associated with the proposal is to provide context that may help a user to choose from among competing proposals.

The completion engine creates instances of this class; it is not intended to be instantiated or subclassed by clients.
@see ICodeAssist#codeComplete(int,CompletionRequestor) @since 3.0

      relevance += computeRelevanceForRestrictions(IAccessRule.K_ACCESSIBLE); // no access restriction for keywors
      
      this.noProposal = false;
      if (!this.requestor.isIgnored(CompletionProposal.JAVADOC_INLINE_TAG)) {
        char[] possibleTag = possibleTags[i];
        CompletionProposal proposal = this.createProposal(CompletionProposal.JAVADOC_INLINE_TAG, this.actualCompletionPosition);
        proposal.setName(possibleTag);
        int tagLength = possibleTag.length;
//        boolean inlineTagStarted = javadocTag.completeInlineTagStarted();
        char[] completion = new char[2+tagLength+1];
        completion[0] = '{';
        completion[1] = '@';
        System.arraycopy(possibleTag, 0, completion, 2, tagLength);
        // do not add space at end of inline tag (see bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=121026)
        //completion[tagLength+2] = ' ';
        completion[tagLength+2] = '}';
        proposal.setCompletion(completion);
        proposal.setReplaceRange(this.startPosition - this.offset, this.endPosition - this.offset);
        proposal.setRelevance(relevance);
        this.requestor.accept(proposal);
        if (DEBUG) {
          this.printDebug(proposal);
        }
      }

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            relevance += computeRelevanceForExpectingType(TypeBinding.BOOLEAN);
            relevance += computeRelevanceForQualification(false);
          }
          this.noProposal = false;
          if(!this.requestor.isIgnored(CompletionProposal.KEYWORD)) {
            CompletionProposal proposal = this.createProposal(CompletionProposal.KEYWORD, this.actualCompletionPosition);
            proposal.setName(choices[i]);
            proposal.setCompletion(choices[i]);
            proposal.setReplaceRange(this.startPosition - this.offset, this.endPosition - this.offset);
            proposal.setRelevance(relevance);
            this.requestor.accept(proposal);
            if(DEBUG) {
              this.printDebug(proposal);
            }
          }

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        relevance += computeRelevanceForQualification(false);
        relevance += R_TRUE_OR_FALSE;


        this.noProposal = false;
        if(!this.requestor.isIgnored(CompletionProposal.KEYWORD)) {
          CompletionProposal proposal = this.createProposal(CompletionProposal.KEYWORD, this.actualCompletionPosition);
          proposal.setName(choices[i]);
          proposal.setCompletion(choices[i]);
          proposal.setReplaceRange(this.startPosition - this.offset, this.endPosition - this.offset);
          proposal.setRelevance(relevance);
          this.requestor.accept(proposal);
          if(DEBUG) {
            this.printDebug(proposal);
          }
        }

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      char[] argName = missingParams[i];
      if (token == null || CharOperation.prefixEquals(token, argName)) {
        
        this.noProposal = false;
        if (!this.requestor.isIgnored(CompletionProposal.JAVADOC_PARAM_REF)) {
          CompletionProposal proposal = this.createProposal(CompletionProposal.JAVADOC_PARAM_REF, this.actualCompletionPosition);
          proposal.setName(argName);
          char[] completion = isTypeParam ? CharOperation.concat('<', argName, '>') : argName;
          proposal.setCompletion(completion);
          proposal.setReplaceRange(this.startPosition - this.offset, this.endPosition - this.offset);
          proposal.setRelevance(--relevance);
          this.requestor.accept(proposal);
          if (DEBUG) {
            this.printDebug(proposal);
          }
        }

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      }
      
      this.noProposal = false;
      // Standard proposal
      if(!this.isIgnored(CompletionProposal.METHOD_REF, missingElements != null) && (this.assistNodeInJavadoc & CompletionOnJavadoc.ONLY_INLINE_TAG) == 0) {
        CompletionProposal proposal = this.createProposal(CompletionProposal.METHOD_REF, this.actualCompletionPosition);
        proposal.setDeclarationSignature(getSignature(method.declaringClass));
        proposal.setSignature(getSignature(method));
        MethodBinding original = method.original();
        if(original != method) {
          proposal.setOriginalSignature(getSignature(original));
        }
        proposal.setDeclarationPackageName(method.declaringClass.qualifiedPackageName());
        proposal.setDeclarationTypeName(method.declaringClass.qualifiedSourceName());
        proposal.setParameterPackageNames(parameterPackageNames);
        proposal.setParameterTypeNames(parameterTypeNames);
        proposal.setPackageName(method.returnType.qualifiedPackageName());
        proposal.setTypeName(method.returnType.qualifiedSourceName());
        proposal.setName(method.selector);
        if (missingElements != null) {
          CompletionProposal[] subProposals = new CompletionProposal[missingElements.length];
          for (int i = 0; i < missingElements.length; i++) {
            subProposals[i] =
              createRequiredTypeProposal(
                  missingElements[i],
                  missingElementsStarts[i],
                  missingElementsEnds[i],
                  relevance);
          }
          proposal.setRequiredProposals(subProposals);
        }
        proposal.setCompletion(completion);
        proposal.setFlags(method.modifiers);
        proposal.setReplaceRange(this.startPosition - this.offset, this.endPosition - this.offset);
        proposal.setRelevance(relevance);
        if(parameterNames != null) proposal.setParameterNames(parameterNames);
        this.requestor.accept(proposal);
        if(DEBUG) {
          this.printDebug(proposal);
        }
      }


      // Javadoc proposal
      if ((this.assistNodeInJavadoc & CompletionOnJavadoc.TEXT) != 0 && !this.requestor.isIgnored(CompletionProposal.JAVADOC_METHOD_REF)) {
        char[] javadocCompletion = inlineTagCompletion(completion, JavadocTagConstants.TAG_LINK);
        CompletionProposal proposal = this.createProposal(CompletionProposal.JAVADOC_METHOD_REF, this.actualCompletionPosition);
        proposal.setDeclarationSignature(getSignature(method.declaringClass));
        proposal.setSignature(getSignature(method));
        MethodBinding original = method.original();
        if(original != method) {
          proposal.setOriginalSignature(getSignature(original));
        }
        proposal.setDeclarationPackageName(method.declaringClass.qualifiedPackageName());
        proposal.setDeclarationTypeName(method.declaringClass.qualifiedSourceName());
        proposal.setParameterPackageNames(parameterPackageNames);
        proposal.setParameterTypeNames(parameterTypeNames);
        proposal.setPackageName(method.returnType.qualifiedPackageName());
        proposal.setTypeName(method.returnType.qualifiedSourceName());
        proposal.setName(method.selector);
        proposal.setCompletion(javadocCompletion);
        proposal.setFlags(method.modifiers);
        int start = (this.assistNodeInJavadoc & CompletionOnJavadoc.REPLACE_TAG) != 0 ? this.javadocTagPosition : this.startPosition;
        proposal.setReplaceRange(start - this.offset, this.endPosition - this.offset);
        proposal.setRelevance(relevance+R_INLINE_TAG);
        if(parameterNames != null) proposal.setParameterNames(parameterNames);
        this.requestor.accept(proposal);
        if(DEBUG) {
          this.printDebug(proposal);
        }
      }

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        if (!proposeStaticImport) {
          if (isAlreadyImported) {
            if (!isIgnored(CompletionProposal.METHOD_REF)) {
              completion = CharOperation.concat(receiverType.sourceName, completion, '.');
              
              CompletionProposal proposal = this.createProposal(CompletionProposal.METHOD_REF, this.actualCompletionPosition);
              proposal.setDeclarationSignature(getSignature(method.declaringClass));
              proposal.setSignature(getSignature(method));
              MethodBinding original = method.original();
              if(original != method) {
                proposal.setOriginalSignature(getSignature(original));
              }
              proposal.setDeclarationPackageName(method.declaringClass.qualifiedPackageName());
              proposal.setDeclarationTypeName(method.declaringClass.qualifiedSourceName());
              proposal.setParameterPackageNames(parameterPackageNames);
              proposal.setParameterTypeNames(parameterTypeNames);
              proposal.setPackageName(method.returnType.qualifiedPackageName());
              proposal.setTypeName(method.returnType.qualifiedSourceName());
              proposal.setName(method.selector);
              proposal.setCompletion(completion);
              proposal.setFlags(method.modifiers);
              proposal.setReplaceRange(this.startPosition - this.offset, this.endPosition - this.offset);
              proposal.setRelevance(relevance);
              if(parameterNames != null) proposal.setParameterNames(parameterNames);
              
              this.requestor.accept(proposal);
              if(DEBUG) {
                this.printDebug(proposal);
              }
            }
          } else if (!this.isIgnored(CompletionProposal.METHOD_REF, CompletionProposal.TYPE_IMPORT)) {
            completion = CharOperation.concat(receiverType.sourceName, completion, '.');
            
            CompletionProposal proposal = this.createProposal(CompletionProposal.METHOD_REF, this.actualCompletionPosition);
            proposal.setDeclarationSignature(getSignature(method.declaringClass));
            proposal.setSignature(getSignature(method));
            MethodBinding original = method.original();
            if(original != method) {
              proposal.setOriginalSignature(getSignature(original));
            }
            proposal.setDeclarationPackageName(method.declaringClass.qualifiedPackageName());
            proposal.setDeclarationTypeName(method.declaringClass.qualifiedSourceName());
            proposal.setParameterPackageNames(parameterPackageNames);
            proposal.setParameterTypeNames(parameterTypeNames);
            proposal.setPackageName(method.returnType.qualifiedPackageName());
            proposal.setTypeName(method.returnType.qualifiedSourceName());
            proposal.setName(method.selector);
            proposal.setCompletion(completion);
            proposal.setFlags(method.modifiers);
            proposal.setReplaceRange(this.startPosition - this.offset, this.endPosition - this.offset);
            proposal.setRelevance(relevance);
            if(parameterNames != null) proposal.setParameterNames(parameterNames);
            
            char[] typeImportCompletion = createImportCharArray(typeName, false, false);
            
            CompletionProposal typeImportProposal = this.createProposal(CompletionProposal.TYPE_IMPORT, this.actualCompletionPosition);
            typeImportProposal.nameLookup = this.nameEnvironment.nameLookup;
            typeImportProposal.completionEngine = this;
            char[] packageName = receiverType.qualifiedPackageName();
            typeImportProposal.setDeclarationSignature(packageName);
            typeImportProposal.setSignature(getSignature(receiverType));
            typeImportProposal.setPackageName(packageName);
            typeImportProposal.setTypeName(receiverType.qualifiedSourceName());
            typeImportProposal.setCompletion(typeImportCompletion);
            typeImportProposal.setFlags(receiverType.modifiers);
            typeImportProposal.setAdditionalFlags(CompletionFlags.Default);
            typeImportProposal.setReplaceRange(importStart - this.offset, importEnd - this.offset);
            typeImportProposal.setRelevance(relevance);
            
            proposal.setRequiredProposals(new CompletionProposal[]{typeImportProposal});
            
            this.requestor.accept(proposal);
            if(DEBUG) {
              this.printDebug(proposal);
            }
          }
        } else {
          if (!this.isIgnored(CompletionProposal.METHOD_REF, CompletionProposal.METHOD_IMPORT)) {
            CompletionProposal proposal = this.createProposal(CompletionProposal.METHOD_REF, this.actualCompletionPosition);
            proposal.setDeclarationSignature(getSignature(method.declaringClass));
            proposal.setSignature(getSignature(method));
            MethodBinding original = method.original();
            if(original != method) {
              proposal.setOriginalSignature(getSignature(original));
            }
            proposal.setDeclarationPackageName(method.declaringClass.qualifiedPackageName());
            proposal.setDeclarationTypeName(method.declaringClass.qualifiedSourceName());
            proposal.setParameterPackageNames(parameterPackageNames);
            proposal.setParameterTypeNames(parameterTypeNames);
            proposal.setPackageName(method.returnType.qualifiedPackageName());
            proposal.setTypeName(method.returnType.qualifiedSourceName());
            proposal.setName(method.selector);
            proposal.setCompletion(completion);
            proposal.setFlags(method.modifiers);
            proposal.setReplaceRange(this.startPosition - this.offset, this.endPosition - this.offset);
            proposal.setRelevance(relevance);
            if(parameterNames != null) proposal.setParameterNames(parameterNames);
            
            char[] methodImportCompletion = createImportCharArray(CharOperation.concat(typeName, method.selector, '.'), true, false);
            
            CompletionProposal methodImportProposal = this.createProposal(CompletionProposal.METHOD_IMPORT, this.actualCompletionPosition);
            methodImportProposal.setDeclarationSignature(getSignature(method.declaringClass));
            methodImportProposal.setSignature(getSignature(method));
            if(original != method) {
              proposal.setOriginalSignature(getSignature(original));
            }
            methodImportProposal.setDeclarationPackageName(method.declaringClass.qualifiedPackageName());
            methodImportProposal.setDeclarationTypeName(method.declaringClass.qualifiedSourceName());
            methodImportProposal.setParameterPackageNames(parameterPackageNames);
            methodImportProposal.setParameterTypeNames(parameterTypeNames);
            methodImportProposal.setPackageName(method.returnType.qualifiedPackageName());
            methodImportProposal.setTypeName(method.returnType.qualifiedSourceName());
            methodImportProposal.setName(method.selector);
            methodImportProposal.setCompletion(methodImportCompletion);
            methodImportProposal.setFlags(method.modifiers);
            methodImportProposal.setAdditionalFlags(CompletionFlags.StaticImport);
            methodImportProposal.setReplaceRange(importStart - this.offset, importEnd - this.offset);
            methodImportProposal.setRelevance(relevance);
            if(parameterNames != null) methodImportProposal.setParameterNames(parameterNames);
            
            proposal.setRequiredProposals(new CompletionProposal[]{methodImportProposal});
            
            this.requestor.accept(proposal);
            if(DEBUG) {

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          relevance += computeRelevanceForRestrictions(IAccessRule.K_ACCESSIBLE); // no access restriction for variable name
          
          // accept result
          CompletionEngine.this.noProposal = false;
          if(!CompletionEngine.this.requestor.isIgnored(CompletionProposal.VARIABLE_DECLARATION)) {
            CompletionProposal proposal = CompletionEngine.this.createProposal(CompletionProposal.VARIABLE_DECLARATION, CompletionEngine.this.actualCompletionPosition);
            proposal.setSignature(getSignature(typeBinding));
            proposal.setPackageName(q);
            proposal.setTypeName(displayName);
            proposal.setName(name);
            proposal.setCompletion(name);
            //proposal.setFlags(Flags.AccDefault);
            proposal.setReplaceRange(CompletionEngine.this.startPosition - CompletionEngine.this.offset, CompletionEngine.this.endPosition - CompletionEngine.this.offset);
            proposal.setRelevance(relevance);
            CompletionEngine.this.requestor.accept(proposal);
            if(DEBUG) {
              CompletionEngine.this.printDebug(proposal);
            }
          }

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      int relevance = computeBaseRelevance();
      relevance += computeRelevanceForResolution();
      relevance += computeRelevanceForInterestingProposal();
      relevance += computeRelevanceForRestrictions(IAccessRule.K_ACCESSIBLE); // no access restriction for new method
      
      CompletionProposal proposal = this.createProposal(CompletionProposal.POTENTIAL_METHOD_DECLARATION, this.actualCompletionPosition);
      proposal.setDeclarationSignature(getSignature(reference));
      proposal.setSignature(
          createMethodSignature(
              CharOperation.NO_CHAR_CHAR,
              CharOperation.NO_CHAR_CHAR,
              CharOperation.NO_CHAR,
              VOID));
      proposal.setDeclarationPackageName(reference.qualifiedPackageName());
      proposal.setDeclarationTypeName(reference.qualifiedSourceName());
      
      //proposal.setPackageName(null);
      proposal.setTypeName(VOID);
      proposal.setName(token);
      //proposal.setParameterPackageNames(null);
      //proposal.setParameterTypeNames(null);
      //proposal.setPackageName(null);
      proposal.setCompletion(token);
      proposal.setFlags(Flags.AccPublic);
      proposal.setReplaceRange(this.startPosition - this.offset, this.endPosition - this.offset);
      proposal.setRelevance(relevance);
      this.requestor.accept(proposal);
      if(DEBUG) {
        this.printDebug(proposal);
      }
    }

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        parameterTypeSignature,
        returnTypeSignature);
  }
  
  protected CompletionProposal createProposal(int kind, int completionOffset) {
    CompletionProposal proposal = CompletionProposal.create(kind, completionOffset - this.offset);
    proposal.nameLookup = this.nameEnvironment.nameLookup;
    proposal.completionEngine = this;
    return proposal;
  }

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   */
  private void createTypeProposal(char[] packageName, char[] typeName, int modifiers, int accessibility, char[] completionName, int relevance) {


    // Create standard type proposal
    if(!this.requestor.isIgnored(CompletionProposal.TYPE_REF) && (this.assistNodeInJavadoc & CompletionOnJavadoc.ONLY_INLINE_TAG) == 0) {
      CompletionProposal proposal = CompletionProposal.create(CompletionProposal.TYPE_REF, this.actualCompletionPosition - this.offset);
      proposal.nameLookup = this.nameEnvironment.nameLookup;
      proposal.completionEngine = this;
      proposal.setDeclarationSignature(packageName);
      proposal.setSignature(createNonGenericTypeSignature(packageName, typeName));
      proposal.setPackageName(packageName);
      proposal.setTypeName(typeName);
      proposal.setCompletion(completionName);
      proposal.setFlags(modifiers);
      proposal.setReplaceRange(this.startPosition - this.offset, this.endPosition - this.offset);
      proposal.setRelevance(relevance);
      proposal.setAccessibility(accessibility);
      this.requestor.accept(proposal);  
      if(DEBUG) {
        this.printDebug(proposal);
      }
    }
    
    // Create javadoc text proposal if necessary
    if ((this.assistNodeInJavadoc & CompletionOnJavadoc.TEXT) != 0 && !this.requestor.isIgnored(CompletionProposal.JAVADOC_TYPE_REF)) {
      char[] javadocCompletion= inlineTagCompletion(completionName, JavadocTagConstants.TAG_LINK);
      CompletionProposal proposal = CompletionProposal.create(CompletionProposal.JAVADOC_TYPE_REF, this.actualCompletionPosition - this.offset);
      proposal.nameLookup = this.nameEnvironment.nameLookup;
      proposal.completionEngine = this;
      proposal.setDeclarationSignature(packageName);
      proposal.setSignature(createNonGenericTypeSignature(packageName, typeName));
      proposal.setPackageName(packageName);
      proposal.setTypeName(typeName);
      proposal.setCompletion(javadocCompletion);
      proposal.setFlags(modifiers);
      int start = (this.assistNodeInJavadoc & CompletionOnJavadoc.REPLACE_TAG) != 0 ? this.javadocTagPosition : this.startPosition;
      proposal.setReplaceRange(start - this.offset, this.endPosition - this.offset);
      proposal.setRelevance(relevance+R_INLINE_TAG);
      proposal.setAccessibility(accessibility);
      this.requestor.accept(proposal);
      if(DEBUG) {
        this.printDebug(proposal);
      }
    }

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Related Classes of org.aspectj.org.eclipse.jdt.core.CompletionProposal

org.aspectj.org.eclipse.jdt.internal.codeassist.CompletionEngine

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