/** Prepares return value. */ public static void prepareReturnValue( MethodVisitor mv, MethodSignatureVisitor msign, int varOffset) { varOffset += msign.getAllArgumentsSize(); switch (msign.getReturnOpcodeType()) { case 'V': mv.visitInsn(ACONST_NULL); break; case 'B': AsmUtil.valueOfByte(mv); break; case 'C': AsmUtil.valueOfCharacter(mv); break; case 'S': AsmUtil.valueOfShort(mv); break; case 'I': AsmUtil.valueOfInteger(mv); break; case 'Z': AsmUtil.valueOfBoolean(mv); break; case 'J': AsmUtil.valueOfLong(mv); break; case 'F': AsmUtil.valueOfFloat(mv); break; case 'D': AsmUtil.valueOfDouble(mv); break; } }
public static void castToReturnType(MethodVisitor mv, MethodSignatureVisitor msign) { final String returnType; char returnOpcodeType = msign.getReturnOpcodeType(); switch (returnOpcodeType) { case 'I': returnType = AsmUtil.SIGNATURE_JAVA_LANG_INTEGER; break; case 'J': returnType = AsmUtil.SIGNATURE_JAVA_LANG_LONG; break; case 'S': returnType = AsmUtil.SIGNATURE_JAVA_LANG_SHORT; break; case 'B': returnType = AsmUtil.SIGNATURE_JAVA_LANG_BYTE; break; case 'Z': returnType = AsmUtil.SIGNATURE_JAVA_LANG_BOOLEAN; break; case 'F': returnType = AsmUtil.SIGNATURE_JAVA_LANG_FLOAT; break; case 'D': returnType = AsmUtil.SIGNATURE_JAVA_LANG_DOUBLE; break; case 'C': returnType = AsmUtil.SIGNATURE_JAVA_LANG_CHARACTER; break; case '[': returnType = msign.getReturnTypeName(); break; default: returnType = msign.getReturnType().replace('.', '/'); break; } mv.visitTypeInsn(CHECKCAST, returnType); }
public static void loadMethodReturnClass(MethodVisitor mv, MethodSignatureVisitor msign) { loadClass(mv, msign.getReturnOpcodeType(), msign.getReturnTypeName()); }
/** Visits return opcodes. */ public static void visitReturn(MethodVisitor mv, MethodSignatureVisitor msign, boolean isLast) { switch (msign.getReturnOpcodeType()) { case 'V': if (isLast == true) { mv.visitInsn(POP); } mv.visitInsn(RETURN); break; case 'B': if (isLast == true) { mv.visitInsn(DUP); Label label = new Label(); mv.visitJumpInsn(IFNONNULL, label); mv.visitInsn(POP); mv.visitInsn(ICONST_0); mv.visitInsn(IRETURN); mv.visitLabel(label); AsmUtil.byteValue(mv); } mv.visitInsn(IRETURN); break; case 'C': if (isLast == true) { mv.visitInsn(DUP); Label label = new Label(); mv.visitJumpInsn(IFNONNULL, label); mv.visitInsn(POP); mv.visitInsn(ICONST_0); mv.visitInsn(IRETURN); mv.visitLabel(label); AsmUtil.charValue(mv); } mv.visitInsn(IRETURN); break; case 'S': if (isLast == true) { mv.visitInsn(DUP); Label label = new Label(); mv.visitJumpInsn(IFNONNULL, label); mv.visitInsn(POP); mv.visitInsn(ICONST_0); mv.visitInsn(IRETURN); mv.visitLabel(label); AsmUtil.shortValue(mv); } mv.visitInsn(IRETURN); break; case 'I': if (isLast == true) { mv.visitInsn(DUP); Label label = new Label(); mv.visitJumpInsn(IFNONNULL, label); mv.visitInsn(POP); mv.visitInsn(ICONST_0); mv.visitInsn(IRETURN); mv.visitLabel(label); AsmUtil.intValue(mv); } mv.visitInsn(IRETURN); break; case 'Z': if (isLast == true) { mv.visitInsn(DUP); Label label = new Label(); mv.visitJumpInsn(IFNONNULL, label); mv.visitInsn(POP); mv.visitInsn(ICONST_0); mv.visitInsn(IRETURN); mv.visitLabel(label); AsmUtil.booleanValue(mv); } mv.visitInsn(IRETURN); break; case 'J': if (isLast == true) { mv.visitInsn(DUP); Label label = new Label(); mv.visitJumpInsn(IFNONNULL, label); mv.visitInsn(POP); mv.visitInsn(LCONST_0); mv.visitInsn(LRETURN); mv.visitLabel(label); AsmUtil.longValue(mv); } mv.visitInsn(LRETURN); break; case 'F': if (isLast == true) { mv.visitInsn(DUP); Label label = new Label(); mv.visitJumpInsn(IFNONNULL, label); mv.visitInsn(POP); mv.visitInsn(FCONST_0); mv.visitInsn(FRETURN); mv.visitLabel(label); AsmUtil.floatValue(mv); } mv.visitInsn(FRETURN); break; case 'D': if (isLast == true) { mv.visitInsn(DUP); Label label = new Label(); mv.visitJumpInsn(IFNONNULL, label); mv.visitInsn(POP); mv.visitInsn(DCONST_0); mv.visitInsn(DRETURN); mv.visitLabel(label); AsmUtil.doubleValue(mv); } mv.visitInsn(DRETURN); break; default: mv.visitInsn(ARETURN); break; } }