/** * Compile the function call and treat as an expression * Update true/false-lists. */ @Override public void translateDesynthesized(ClassGenerator classGen, MethodGenerator methodGen) { Type type = Type.Boolean; if (_chosenMethodType != null) type = _chosenMethodType.resultType(); final InstructionList il = methodGen.getInstructionList(); translate(classGen, methodGen); if ((type instanceof BooleanType) || (type instanceof IntType)) { _falseList.add(il.append(new IFEQ(null))); } }
public void translateDesynthesized(ClassGenerator classGen, MethodGenerator methodGen) { final Type tleft = _left.getType(); final InstructionList il = methodGen.getInstructionList(); if (tleft instanceof BooleanType) { _left.translate(classGen, methodGen); _right.translate(classGen, methodGen); _falseList.add(il.append(_op == Operators.EQ ? (BranchInstruction)new IF_ICMPNE(null) : (BranchInstruction)new IF_ICMPEQ(null))); } else if (tleft instanceof NumberType) { _left.translate(classGen, methodGen); _right.translate(classGen, methodGen); if (tleft instanceof RealType) { il.append(DCMPG); _falseList.add(il.append(_op == Operators.EQ ? (BranchInstruction)new IFNE(null) : (BranchInstruction)new IFEQ(null))); } else { _falseList.add(il.append(_op == Operators.EQ ? (BranchInstruction)new IF_ICMPNE(null) : (BranchInstruction)new IF_ICMPEQ(null))); } } else { translate(classGen, methodGen); desynthesize(classGen, methodGen); } }
/** * Translates a string into a non-synthesized boolean. It does not push a * 0 or a 1 but instead returns branchhandle list to be appended to the * false list. * * @see com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type#translateToDesynthesized */ public FlowList translateToDesynthesized(ClassGenerator classGen, MethodGenerator methodGen, BooleanType type) { final ConstantPoolGen cpg = classGen.getConstantPool(); final InstructionList il = methodGen.getInstructionList(); il.append(new INVOKEVIRTUAL(cpg.addMethodref(STRING_CLASS, "length", "()I"))); return new FlowList(il.append(new IFEQ(null))); }
/** * Expects an integer on the stack and pushes a 0 if its value is 0 and * a 1 otherwise. * * @see com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type#translateTo */ public void translateTo(ClassGenerator classGen, MethodGenerator methodGen, BooleanType type) { final InstructionList il = methodGen.getInstructionList(); final BranchHandle falsec = il.append(new IFEQ(null)); il.append(ICONST_1); final BranchHandle truec = il.append(new GOTO(null)); falsec.setTarget(il.append(ICONST_0)); truec.setTarget(il.append(NOP)); }
/** * Translates a real into a non-synthesized boolean. It does not push a * 0 or a 1 but instead returns branchhandle list to be appended to the * false list. A NaN must be converted to "false". * * @see com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type#translateToDesynthesized */ public FlowList translateToDesynthesized(ClassGenerator classGen, MethodGenerator methodGen, BooleanType type) { LocalVariableGen local; final FlowList flowlist = new FlowList(); final ConstantPoolGen cpg = classGen.getConstantPool(); final InstructionList il = methodGen.getInstructionList(); // Store real into a local variable il.append(DUP2); local = methodGen.addLocalVariable("real_to_boolean_tmp", com.sun.org.apache.bcel.internal.generic.Type.DOUBLE, null, null); local.setStart(il.append(new DSTORE(local.getIndex()))); // Compare it to 0.0 il.append(DCONST_0); il.append(DCMPG); flowlist.add(il.append(new IFEQ(null))); //!!! call isNaN // Compare it to itself to see if NaN il.append(new DLOAD(local.getIndex())); local.setEnd(il.append(new DLOAD(local.getIndex()))); il.append(DCMPG); flowlist.add(il.append(new IFNE(null))); // NaN != NaN return flowlist; }
/** * Expects a reference on the stack and translates it to a non-synthesized * boolean. It does not push a 0 or a 1 but instead returns branchhandle * list to be appended to the false list. * * @see com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type#translateToDesynthesized */ public FlowList translateToDesynthesized(ClassGenerator classGen, MethodGenerator methodGen, BooleanType type) { InstructionList il = methodGen.getInstructionList(); translateTo(classGen, methodGen, type); return new FlowList(il.append(new IFEQ(null))); }
/** * Expects a boolean on the stack and pushes a string. If the value on the * stack is zero, then the string 'false' is pushed. Otherwise, the string * 'true' is pushed. * * @see com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type#translateTo */ public void translateTo(ClassGenerator classGen, MethodGenerator methodGen, StringType type) { final ConstantPoolGen cpg = classGen.getConstantPool(); final InstructionList il = methodGen.getInstructionList(); final BranchHandle falsec = il.append(new IFEQ(null)); il.append(new PUSH(cpg, "true")); final BranchHandle truec = il.append(new GOTO(null)); falsec.setTarget(il.append(new PUSH(cpg, "false"))); truec.setTarget(il.append(NOP)); }