public IfStatement generateCompareFloatOrDouble(Expression thisRef, Expression otherRef, char[] floatOrDouble, ASTNode source) { int pS = source.sourceStart, pE = source.sourceEnd; /* if (Float.compare(fieldName, other.fieldName) != 0) return false */ MessageSend floatCompare = new MessageSend(); floatCompare.sourceStart = pS; floatCompare.sourceEnd = pE; setGeneratedBy(floatCompare, source); floatCompare.receiver = generateQualifiedNameRef(source, TypeConstants.JAVA, TypeConstants.LANG, floatOrDouble); floatCompare.selector = "compare".toCharArray(); floatCompare.arguments = new Expression[] {thisRef, otherRef}; IntLiteral int0 = makeIntLiteral("0".toCharArray(), source); EqualExpression ifFloatCompareIsNot0 = new EqualExpression(floatCompare, int0, OperatorIds.NOT_EQUAL); ifFloatCompareIsNot0.sourceStart = pS; ifFloatCompareIsNot0.sourceEnd = pE; setGeneratedBy(ifFloatCompareIsNot0, source); FalseLiteral falseLiteral = new FalseLiteral(pS, pE); setGeneratedBy(falseLiteral, source); ReturnStatement returnFalse = new ReturnStatement(falseLiteral, pS, pE); setGeneratedBy(returnFalse, source); IfStatement ifStatement = new IfStatement(ifFloatCompareIsNot0, returnFalse, pS, pE); setGeneratedBy(ifStatement, source); return ifStatement; }
/** Give 2 clones! */ public Expression longToIntForHashCode(Expression ref1, Expression ref2, ASTNode source) { int pS = source.sourceStart, pE = source.sourceEnd; /* (int)(ref >>> 32 ^ ref) */ IntLiteral int32 = makeIntLiteral("32".toCharArray(), source); BinaryExpression higherBits = new BinaryExpression(ref1, int32, OperatorIds.UNSIGNED_RIGHT_SHIFT); setGeneratedBy(higherBits, source); BinaryExpression xorParts = new BinaryExpression(ref2, higherBits, OperatorIds.XOR); setGeneratedBy(xorParts, source); TypeReference intRef = TypeReference.baseTypeReference(TypeIds.T_int, 0); intRef.sourceStart = pS; intRef.sourceEnd = pE; setGeneratedBy(intRef, source); CastExpression expr = makeCastExpression(xorParts, intRef, source); expr.sourceStart = pS; expr.sourceEnd = pE; return expr; }
/** Generates 'this.<em>name</em>.size()' as an expression; if nullGuard is true, it's this.name == null ? 0 : this.name.size(). */ protected Expression getSize(EclipseNode builderType, char[] name, boolean nullGuard) { MessageSend invoke = new MessageSend(); ThisReference thisRef = new ThisReference(0, 0); FieldReference thisDotName = new FieldReference(name, 0L); thisDotName.receiver = thisRef; invoke.receiver = thisDotName; invoke.selector = SIZE_TEXT; if (!nullGuard) return invoke; ThisReference cdnThisRef = new ThisReference(0, 0); FieldReference cdnThisDotName = new FieldReference(name, 0L); cdnThisDotName.receiver = cdnThisRef; NullLiteral nullLiteral = new NullLiteral(0, 0); EqualExpression isNull = new EqualExpression(cdnThisDotName, nullLiteral, OperatorIds.EQUAL_EQUAL); IntLiteral zeroLiteral = makeIntLiteral(new char[] {'0'}, null); ConditionalExpression conditional = new ConditionalExpression(isNull, zeroLiteral, invoke); return conditional; }
/** * @see org.eclipse.jdt.internal.compiler.ASTVisitor#visit(org.eclipse.jdt.internal.compiler.ast.IntLiteral, org.eclipse.jdt.internal.compiler.lookup.BlockScope) */ public boolean visit(IntLiteral intLiteral, BlockScope scope) { final int numberOfParens = (intLiteral.bits & ASTNode.ParenthesizedMASK) >> ASTNode.ParenthesizedSHIFT; if (numberOfParens > 0) { manageOpeningParenthesizedExpression(intLiteral, numberOfParens); } if (isNextToken(TerminalTokens.TokenNameMINUS)) { this.scribe.printNextToken(TerminalTokens.TokenNameMINUS); } this.scribe.printNextToken(TerminalTokens.TokenNameIntegerLiteral); if (numberOfParens > 0) { manageClosingParenthesizedExpression(intLiteral, numberOfParens); } return false; }
private IfStatement generateCompareFloatOrDouble(Expression thisRef, Expression otherRef, char[] floatOrDouble, ASTNode source) { int pS = source.sourceStart, pE = source.sourceEnd; /* if (Float.compare(fieldName, other.fieldName) != 0) return false */ MessageSend floatCompare = new MessageSend(); floatCompare.sourceStart = pS; floatCompare.sourceEnd = pE; setGeneratedBy(floatCompare, source); floatCompare.receiver = generateQualifiedNameRef(source, TypeConstants.JAVA, TypeConstants.LANG, floatOrDouble); floatCompare.selector = "compare".toCharArray(); floatCompare.arguments = new Expression[] {thisRef, otherRef}; IntLiteral int0 = makeIntLiteral("0".toCharArray(), source); EqualExpression ifFloatCompareIsNot0 = new EqualExpression(floatCompare, int0, OperatorIds.NOT_EQUAL); ifFloatCompareIsNot0.sourceStart = pS; ifFloatCompareIsNot0.sourceEnd = pE; setGeneratedBy(ifFloatCompareIsNot0, source); FalseLiteral falseLiteral = new FalseLiteral(pS, pE); setGeneratedBy(falseLiteral, source); ReturnStatement returnFalse = new ReturnStatement(falseLiteral, pS, pE); setGeneratedBy(returnFalse, source); IfStatement ifStatement = new IfStatement(ifFloatCompareIsNot0, returnFalse, pS, pE); setGeneratedBy(ifStatement, source); return ifStatement; }
/** Give 2 clones! */ private Expression longToIntForHashCode(Expression ref1, Expression ref2, ASTNode source) { int pS = source.sourceStart, pE = source.sourceEnd; /* (int)(ref >>> 32 ^ ref) */ IntLiteral int32 = makeIntLiteral("32".toCharArray(), source); BinaryExpression higherBits = new BinaryExpression(ref1, int32, OperatorIds.UNSIGNED_RIGHT_SHIFT); setGeneratedBy(higherBits, source); BinaryExpression xorParts = new BinaryExpression(ref2, higherBits, OperatorIds.XOR); setGeneratedBy(xorParts, source); TypeReference intRef = TypeReference.baseTypeReference(TypeIds.T_int, 0); intRef.sourceStart = pS; intRef.sourceEnd = pE; setGeneratedBy(intRef, source); CastExpression expr = makeCastExpression(xorParts, intRef, source); expr.sourceStart = pS; expr.sourceEnd = pE; return expr; }
private static Expression getDefaultExpr(TypeReference type, int s, int e) { char[] lastToken = type.getLastToken(); if (Arrays.equals(TypeConstants.BOOLEAN, lastToken)) return new FalseLiteral(s, e); if (Arrays.equals(TypeConstants.CHAR, lastToken)) return new CharLiteral(new char[] {'\'', '\\', '0', '\''}, s, e); if (Arrays.equals(TypeConstants.BYTE, lastToken) || Arrays.equals(TypeConstants.SHORT, lastToken) || Arrays.equals(TypeConstants.INT, lastToken)) return IntLiteral.buildIntLiteral(new char[] {'0'}, s, e); if (Arrays.equals(TypeConstants.LONG, lastToken)) return LongLiteral.buildLongLiteral(new char[] {'0', 'L'}, s, e); if (Arrays.equals(TypeConstants.FLOAT, lastToken)) return new FloatLiteral(new char[] {'0', 'F'}, s, e); if (Arrays.equals(TypeConstants.DOUBLE, lastToken)) return new DoubleLiteral(new char[] {'0', 'D'}, s, e); return new NullLiteral(s, e); }
protected void consumeUnaryExpression(int op, boolean post) { // PreIncrementExpression ::= '++' PushPosition UnaryExpression // PreDecrementExpression ::= '--' PushPosition UnaryExpression // ++ and -- operators //optimize the push/pop //this.intStack has the position of the operator when prefix Expression leftHandSide = this.expressionStack[this.expressionPtr]; if (leftHandSide instanceof Reference) { // ++foo()++ is unvalid if (post) { this.expressionStack[this.expressionPtr] = new PostfixExpression( leftHandSide, IntLiteral.One, op, this.endStatementPosition); } else { this.expressionStack[this.expressionPtr] = new PrefixExpression( leftHandSide, IntLiteral.One, op, this.intStack[this.intPtr--]); } } else { //the ++ or the -- is NOT taken into account if code gen proceeds if (!post) { this.intPtr--; } if(!this.statementRecoveryActivated) problemReporter().invalidUnaryExpression(leftHandSide); } }
@Override public void endVisit(IntLiteral x, BlockScope scope) { try { push(JIntLiteral.get(x.constant.intValue())); } catch (Throwable e) { throw translateException(x, e); } }
@Override public boolean visit(IntLiteral node, BlockScope scope) { fixPositions(setGeneratedBy(node, source)); return super.visit(node, scope); }
public boolean visit(IntLiteral intLiteral, BlockScope scope) { addSmallFragment(intLiteral); return false; }
public void generateCompoundAssignment(BlockScope currentScope, CodeStream codeStream, Expression expression, int operator, int assignmentImplicitConversion, boolean valueRequired) { FieldBinding lastFieldBinding = this.otherBindings == null ? (FieldBinding) this.binding : this.otherBindings[this.otherBindings.length-1]; if (lastFieldBinding.canBeSeenBy(getFinalReceiverType(), this, currentScope)) { super.generateCompoundAssignment(currentScope, codeStream, expression, operator, assignmentImplicitConversion, valueRequired); return; } lastFieldBinding = generateReadSequence(currentScope, codeStream); if (lastFieldBinding.isStatic()){ codeStream.generateEmulationForField(lastFieldBinding); codeStream.swap(); codeStream.aconst_null(); codeStream.swap(); codeStream.generateEmulatedReadAccessForField(lastFieldBinding); } else { codeStream.generateEmulationForField(lastFieldBinding); codeStream.swap(); codeStream.dup(); codeStream.generateEmulatedReadAccessForField(lastFieldBinding); } // the last field access is a write access // perform the actual compound operation int operationTypeID; if ((operationTypeID = (this.implicitConversion & IMPLICIT_CONVERSION_MASK) >> 4) == T_JavaLangString) { codeStream.generateStringConcatenationAppend(currentScope, null, expression); } else { // promote the array reference to the suitable operation type codeStream.generateImplicitConversion(this.implicitConversion); // generate the increment value (will by itself be promoted to the operation value) if (expression == IntLiteral.One){ // prefix operation codeStream.generateConstant(expression.constant, this.implicitConversion); } else { expression.generateCode(currentScope, codeStream, true); } // perform the operation codeStream.sendOperator(operator, operationTypeID); // cast the value back to the array reference type codeStream.generateImplicitConversion(assignmentImplicitConversion); } // actual assignment // current stack is: // field receiver value if (valueRequired) { switch (lastFieldBinding.type.id) { case TypeIds.T_long : case TypeIds.T_double : codeStream.dup2_x2(); break; default : codeStream.dup_x2(); break; } } // current stack is: // value field receiver value codeStream.generateEmulatedWriteAccessForField(lastFieldBinding); }
@Override public boolean visit(IntLiteral node, BlockScope scope) { setGeneratedBy(node, source); applyOffsetExpression(node); return super.visit(node, scope); }
