package org.eclipse.jdt.internal.compiler.parser; | |
/* | |
* (c) Copyright IBM Corp. 2000, 2001. | |
* All Rights Reserved. | |
*/ | |
/** | |
* Internal initializer structure for parsing recovery | |
*/ | |
import org.eclipse.jdt.internal.compiler.ast.*; | |
import org.eclipse.jdt.internal.compiler.lookup.*; | |
import org.eclipse.jdt.internal.compiler.util.*; | |
public class RecoveredInitializer extends RecoveredField implements CompilerModifiers, TerminalSymbols, BaseTypes { | |
public RecoveredType[] localTypes; | |
public int localTypeCount; | |
public RecoveredBlock initializerBody; | |
public RecoveredInitializer(FieldDeclaration fieldDeclaration, RecoveredElement parent, int bracketBalance){ | |
this(fieldDeclaration, parent, bracketBalance, null); | |
} | |
public RecoveredInitializer(FieldDeclaration fieldDeclaration, RecoveredElement parent, int bracketBalance, Parser parser){ | |
super(fieldDeclaration, parent, bracketBalance, parser); | |
this.foundOpeningBrace = true; | |
} | |
/* | |
* Record a nested block declaration | |
*/ | |
public RecoveredElement add(Block nestedBlockDeclaration, int bracketBalance) { | |
/* default behavior is to delegate recording to parent if any, | |
do not consider elements passed the known end (if set) | |
it must be belonging to an enclosing element | |
*/ | |
if (fieldDeclaration.declarationSourceEnd > 0 | |
&& nestedBlockDeclaration.sourceStart | |
> fieldDeclaration.declarationSourceEnd){ | |
return this.parent.add(nestedBlockDeclaration, bracketBalance); | |
} | |
/* consider that if the opening brace was not found, it is there */ | |
if (!foundOpeningBrace){ | |
foundOpeningBrace = true; | |
this.bracketBalance++; | |
} | |
initializerBody = new RecoveredBlock(nestedBlockDeclaration, this, bracketBalance); | |
if (nestedBlockDeclaration.sourceEnd == 0) return initializerBody; | |
return this; | |
} | |
/* | |
* Record a field declaration (act like inside method body) | |
*/ | |
public RecoveredElement add(FieldDeclaration newFieldDeclaration, int bracketBalance) { | |
/* local variables inside initializer can only be final and non void */ | |
char[][] fieldTypeName; | |
if ((newFieldDeclaration.modifiers & ~AccFinal) != 0 /* local var can only be final */ | |
|| (newFieldDeclaration.type == null) // initializer | |
|| ((fieldTypeName = newFieldDeclaration.type.getTypeName()).length == 1 // non void | |
&& CharOperation.equals(fieldTypeName[0], VoidBinding.sourceName()))){ | |
this.updateSourceEndIfNecessary(this.previousAvailableLineEnd(newFieldDeclaration.declarationSourceStart - 1)); | |
return this.parent.add(newFieldDeclaration, bracketBalance); | |
} | |
/* default behavior is to delegate recording to parent if any, | |
do not consider elements passed the known end (if set) | |
it must be belonging to an enclosing element | |
*/ | |
if (this.fieldDeclaration.declarationSourceEnd > 0 | |
&& newFieldDeclaration.declarationSourceStart | |
> this.fieldDeclaration.declarationSourceEnd){ | |
return this.parent.add(newFieldDeclaration, bracketBalance); | |
} | |
// still inside initializer, treat as local variable | |
return this; // ignore | |
} | |
/* | |
* Record a local declaration - regular method should have been created a block body | |
*/ | |
public RecoveredElement add(LocalDeclaration localDeclaration, int bracketBalance) { | |
/* do not consider a type starting passed the type end (if set) | |
it must be belonging to an enclosing type */ | |
if (fieldDeclaration.declarationSourceEnd != 0 | |
&& localDeclaration.declarationSourceStart > fieldDeclaration.declarationSourceEnd){ | |
if (parent == null) { | |
return this; // ignore | |
} else { | |
return this.parent.add(localDeclaration, bracketBalance); | |
} | |
} | |
/* method body should have been created */ | |
Block block = new Block(0); | |
block.sourceStart = ((Initializer)fieldDeclaration).bodyStart; | |
RecoveredElement element = this.add(block, 1); | |
return element.add(localDeclaration, bracketBalance); | |
} | |
/* | |
* Record a statement - regular method should have been created a block body | |
*/ | |
public RecoveredElement add(Statement statement, int bracketBalance) { | |
/* do not consider a statement starting passed the initializer end (if set) | |
it must be belonging to an enclosing type */ | |
if (fieldDeclaration.declarationSourceEnd != 0 | |
&& statement.sourceStart > fieldDeclaration.declarationSourceEnd){ | |
if (parent == null) { | |
return this; // ignore | |
} else { | |
return this.parent.add(statement, bracketBalance); | |
} | |
} | |
/* initializer body should have been created */ | |
Block block = new Block(0); | |
block.sourceStart = ((Initializer)fieldDeclaration).bodyStart; | |
RecoveredElement element = this.add(block, 1); | |
return element.add(statement, bracketBalance); | |
} | |
public RecoveredElement add(TypeDeclaration typeDeclaration, int bracketBalance) { | |
/* do not consider a type starting passed the type end (if set) | |
it must be belonging to an enclosing type */ | |
if (fieldDeclaration.declarationSourceEnd != 0 | |
&& typeDeclaration.declarationSourceStart > fieldDeclaration.declarationSourceEnd){ | |
if (parent == null) { | |
return this; // ignore | |
} else { | |
return this.parent.add(typeDeclaration, bracketBalance); | |
} | |
} | |
if (typeDeclaration instanceof LocalTypeDeclaration){ | |
/* method body should have been created */ | |
Block block = new Block(0); | |
block.sourceStart = ((Initializer)fieldDeclaration).bodyStart; | |
RecoveredElement element = this.add(block, 1); | |
return element.add(typeDeclaration, bracketBalance); | |
} | |
if (localTypes == null) { | |
localTypes = new RecoveredType[5]; | |
localTypeCount = 0; | |
} else { | |
if (localTypeCount == localTypes.length) { | |
System.arraycopy( | |
localTypes, | |
0, | |
(localTypes = new RecoveredType[2 * localTypeCount]), | |
0, | |
localTypeCount); | |
} | |
} | |
RecoveredType element = new RecoveredType(typeDeclaration, this, bracketBalance); | |
localTypes[localTypeCount++] = element; | |
/* consider that if the opening brace was not found, it is there */ | |
if (!foundOpeningBrace){ | |
foundOpeningBrace = true; | |
this.bracketBalance++; | |
} | |
return element; | |
} | |
public String toString(int tab) { | |
StringBuffer result = new StringBuffer(tabString(tab)); | |
result.append("Recovered initializer:\n"); //$NON-NLS-1$ | |
result.append(this.fieldDeclaration.toString(tab + 1)); | |
if (this.initializerBody != null) { | |
result.append("\n"); //$NON-NLS-1$ | |
result.append(this.initializerBody.toString(tab + 1)); | |
} | |
return result.toString(); | |
} | |
public FieldDeclaration updatedFieldDeclaration(){ | |
if (initializerBody != null){ | |
Block block = initializerBody.updatedBlock(); | |
if (block != null){ | |
((Initializer)fieldDeclaration).block = block; | |
} | |
} | |
return fieldDeclaration; | |
} | |
/* | |
* A closing brace got consumed, might have closed the current element, | |
* in which case both the currentElement is exited | |
*/ | |
public RecoveredElement updateOnClosingBrace(int braceStart, int braceEnd){ | |
if ((--bracketBalance <= 0) && (parent != null)){ | |
this.updateSourceEndIfNecessary(braceEnd); | |
return parent; | |
} | |
return this; | |
} | |
/* | |
* An opening brace got consumed, might be the expected opening one of the current element, | |
* in which case the bodyStart is updated. | |
*/ | |
public RecoveredElement updateOnOpeningBrace(int currentPosition){ | |
bracketBalance++; | |
return this; // request to restart | |
} | |
/* | |
* Update the declarationSourceEnd of the corresponding parse node | |
*/ | |
public void updateSourceEndIfNecessary(int sourceEnd){ | |
if (this.fieldDeclaration.declarationSourceEnd == 0) | |
this.fieldDeclaration.sourceEnd = sourceEnd; | |
this.fieldDeclaration.declarationSourceEnd = sourceEnd; | |
} | |
} |