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提交 fb7066ce authored 作者: Thomas Mueller's avatar Thomas Mueller
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JaQu: the decompiler has been improved.

上级 76feb2b3
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内嵌 并排
正在显示 包含 1051 行增加 和 501 行删除
h2/src/tools/org/h2/jaqu/TableDefinition.java
浏览文件 @ fb7066ce
......@@ -94,6 +94,10 @@ class TableDefinition<T> {
tableName = clazz.getSimpleName();
}
List<FieldDefinition> getFields() {
return fields;
}
void setTableName(String tableName) {
this.tableName = tableName;
}
......
h2/src/tools/org/h2/jaqu/Token.java
浏览文件 @ fb7066ce
......@@ -9,7 +9,7 @@ package org.h2.jaqu;
/**
* Classes implementing this interface can be used as a token in a statement.
*/
interface Token {
public interface Token {
/**
* Append the SQL to the given statement using the given query.
*
......
h2/src/tools/org/h2/jaqu/bytecode/And.java 0 → 100644
浏览文件 @ fb7066ce
/*
* Copyright 2004-2009 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.jaqu.bytecode;
import org.h2.jaqu.Query;
import org.h2.jaqu.SQLStatement;
import org.h2.jaqu.Token;
/**
* An AND expression.
*/
public class And implements Token {
private final Token left, right;
private And(Token left, Token right) {
this.left = left;
this.right = right;
}
static And get(Token left, Token right) {
return new And(left, right);
}
public <T> void appendSQL(SQLStatement stat, Query<T> query) {
left.appendSQL(stat, query);
stat.appendSQL(" AND ");
right.appendSQL(stat, query);
}
}
h2/src/tools/org/h2/jaqu/bytecode/ArrayGet.java 0 → 100644
浏览文件 @ fb7066ce
/*
* Copyright 2004-2009 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.jaqu.bytecode;
import org.h2.jaqu.Query;
import org.h2.jaqu.SQLStatement;
import org.h2.jaqu.Token;
/**
* An array access operation.
*/
public class ArrayGet implements Token {
private final Token variable;
private final Token index;
private ArrayGet(Token variable, Token index) {
this.variable = variable;
this.index = index;
}
static ArrayGet get(Token variable, Token index) {
return new ArrayGet(variable, index);
}
public <T> void appendSQL(SQLStatement stat, Query<T> query) {
// untested
variable.appendSQL(stat, query);
stat.appendSQL("[");
index.appendSQL(stat, query);
stat.appendSQL("]");
}
}
h2/src/tools/org/h2/jaqu/bytecode/CaseWhen.java 0 → 100644
浏览文件 @ fb7066ce
/*
* Copyright 2004-2009 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.jaqu.bytecode;
import org.h2.jaqu.Query;
import org.h2.jaqu.SQLStatement;
import org.h2.jaqu.Token;
/**
* A conditional expression.
*/
public class CaseWhen implements Token {
private final Token condition, ifTrue, ifFalse;
private CaseWhen(Token condition, Token ifTrue, Token ifFalse) {
this.condition = condition;
this.ifTrue = ifTrue;
this.ifFalse = ifFalse;
}
static Token get(Token condition, Token ifTrue, Token ifFalse) {
if ("0".equals(ifTrue.toString()) && "1".equals(ifFalse.toString())) {
return Not.get(condition);
} else if ("1".equals(ifTrue.toString()) && "0".equals(ifFalse.toString())) {
return condition;
} else if ("0".equals(ifTrue.toString())) {
return And.get(Not.get(condition), ifFalse);
}
return new CaseWhen(condition, ifTrue, ifFalse);
}
public String toString() {
return "CASEWHEN(" + condition + ", " + ifTrue + ", " + ifFalse + ")";
}
public <T> void appendSQL(SQLStatement stat, Query<T> query) {
stat.appendSQL("CASEWHEN ");
condition.appendSQL(stat, query);
stat.appendSQL(" THEN ");
ifTrue.appendSQL(stat, query);
stat.appendSQL(" ELSE ");
ifFalse.appendSQL(stat, query);
stat.appendSQL(" END");
}
}
h2/src/tools/org/h2/jaqu/util/ClassReader.java → h2/src/tools/org/h2/jaqu/bytecode/ClassReader.java
浏览文件 @ fb7066ce
......@@ -4,16 +4,19 @@
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.jaqu.util;
package org.h2.jaqu.bytecode;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import java.util.Stack;
import org.h2.jaqu.Token;
/**
* This class converts a method to a SQL expression by interpreting
* This class converts a method to a SQL Token by interpreting
* (decompiling) the bytecode of the class.
*/
public class ClassReader {
......@@ -22,19 +25,18 @@ public class ClassReader {
private byte[] data;
private int pos;
private int[] cpType;
private String[] cpString;
private int[] cpInt;
private Constant[] constantPool;
private int startByteCode;
private String methodName;
private String convertMethodName;
private String result;
private Stack<String> stack = new Stack<String>();
private ArrayList<String> variables = new ArrayList<String>();
private Token result;
private Stack<Token> stack = new Stack<Token>();
private ArrayList<Token> variables = new ArrayList<Token>();
private boolean end;
private boolean condition;
private int nextPc;
private Map<String, Object> fieldMap = new HashMap<String, Object>();
private void debug(String s) {
if (DEBUG) {
......@@ -42,7 +44,8 @@ public class ClassReader {
}
}
public String decompile(Object instance, String methodName) {
public Token decompile(Object instance, Map<String, Object> fieldMap, String methodName) {
this.fieldMap = fieldMap;
this.convertMethodName = methodName;
Class< ? > clazz = instance.getClass();
String className = clazz.getName();
......@@ -67,89 +70,79 @@ public class ClassReader {
int majorVersion = readShort();
debug("version: " + majorVersion + "." + minorVersion);
int constantPoolCount = readShort();
cpString = new String[constantPoolCount];
cpInt = new int[constantPoolCount];
cpType = new int[constantPoolCount];
constantPool = new Constant[constantPoolCount];
for (int i = 1; i < constantPoolCount; i++) {
int tag = readByte();
cpType[i] = tag;
switch(tag) {
int type = readByte();
switch(type) {
case 1:
cpString[i] = readString();
constantPool[i] = ConstantString.get(readString());
break;
case 3: {
int x = readInt();
cpString[i] = String.valueOf(x);
constantPool[i] = ConstantNumber.get(x);
break;
}
case 4: {
int x = readInt();
cpString[i] = Float.toString(Float.intBitsToFloat(x));
cpInt[i] = x;
constantPool[i] = ConstantNumber.get("" + Float.intBitsToFloat(x), x, Constant.Type.FLOAT);
break;
}
case 5: {
long x = readLong();
cpString[i] = String.valueOf(x);
constantPool[i] = ConstantNumber.get(x);
i++;
break;
}
case 6: {
long x = readLong();
cpString[i] = String.valueOf(Double.longBitsToDouble(x));
constantPool[i] = ConstantNumber.get("" + Double.longBitsToDouble(x), x, Constant.Type.DOUBLE);
i++;
break;
}
case 7: {
int x = readShort();
cpString[i] = "class";
cpInt[i] = x;
constantPool[i] = ConstantNumber.get(null, x, ConstantNumber.Type.CLASS_REF);
break;
}
case 8: {
int x = readShort();
cpString[i] = "string";
cpInt[i] = x;
constantPool[i] = ConstantNumber.get(null, x, ConstantNumber.Type.STRING_REF);
break;
}
case 9: {
int x = readInt();
cpString[i] = "field";
cpInt[i] = x;
constantPool[i] = ConstantNumber.get(null, x, ConstantNumber.Type.FIELD_REF);
break;
}
case 10: {
int x = readInt();
cpString[i] = "method";
cpInt[i] = x;
constantPool[i] = ConstantNumber.get(null, x, ConstantNumber.Type.METHOD_REF);
break;
}
case 11: {
int x = readInt();
cpString[i] = "interface method";
cpInt[i] = x;
constantPool[i] = ConstantNumber.get(null, x, ConstantNumber.Type.INTERFACE_METHOD_REF);
break;
}
case 12: {
int x = readInt();
cpString[i] = "name and type";
cpInt[i] = x;
constantPool[i] = ConstantNumber.get(null, x, ConstantNumber.Type.NAME_AND_TYPE);
break;
}
default:
throw new RuntimeException("Unsupported constant pool tag: " + tag);
throw new RuntimeException("Unsupported constant pool tag: " + type);
}
}
int accessFlags = readShort();
debug("access flags: " + accessFlags);
int classRef = readShort();
debug("class: " + cpString[cpInt[classRef]]);
debug("class: " + constantPool[constantPool[classRef].intValue()]);
int superClassRef = readShort();
debug(" extends " + cpString[cpInt[superClassRef]]);
debug(" extends " + constantPool[constantPool[superClassRef].intValue()]);
int interfaceCount = readShort();
for (int i = 0; i < interfaceCount; i++) {
int interfaceRef = readShort();
debug(" implements " + cpString[cpInt[interfaceRef]]);
debug(" implements " + constantPool[constantPool[interfaceRef].intValue()]);
}
int fieldCount = readShort();
for (int i = 0; i < fieldCount; i++) {
......@@ -167,7 +160,7 @@ public class ClassReader {
int accessFlags = readShort();
int nameIndex = readShort();
int descIndex = readShort();
debug(" " + cpString[descIndex] + " " + cpString[nameIndex] + " " + accessFlags);
debug(" " + constantPool[descIndex] + " " + constantPool[nameIndex] + " " + accessFlags);
readAttributes();
}
......@@ -175,8 +168,8 @@ public class ClassReader {
int accessFlags = readShort();
int nameIndex = readShort();
int descIndex = readShort();
String desc = cpString[descIndex];
methodName = cpString[nameIndex];
String desc = constantPool[descIndex].toString();
methodName = constantPool[nameIndex].toString();
debug(" " + desc + " " + methodName + " " + accessFlags);
readAttributes();
}
......@@ -185,7 +178,7 @@ public class ClassReader {
int attributeCount = readShort();
for (int i = 0; i < attributeCount; i++) {
int attributeNameIndex = readShort();
String attributeName = cpString[attributeNameIndex];
String attributeName = constantPool[attributeNameIndex].toString();
debug(" attribute " + attributeName);
int attributeLength = readInt();
int end = pos + attributeLength;
......@@ -230,38 +223,38 @@ public class ClassReader {
readAttributes();
}
private String getResult() {
private Token getResult() {
while (true) {
readByteCode();
if (end) {
return stack.pop();
}
if (condition) {
String c = stack.pop();
Stack<String> currentStack = new Stack<String>();
Token c = stack.pop();
Stack<Token> currentStack = new Stack<Token>();
currentStack.addAll(stack);
ArrayList<String> currentVariables = new ArrayList<String>();
ArrayList<Token> currentVariables = new ArrayList<Token>();
currentVariables.addAll(variables);
int branch = nextPc;
String a = getResult();
Token a = getResult();
stack = currentStack;
variables = currentVariables;
pos = branch + startByteCode;
String b = getResult();
Token b = getResult();
if (a.equals("0") && b.equals("1")) {
return c;
} else if (a.equals("1") && b.equals("0")) {
return "NOT(" +c + ")";
return Not.get(c);
} else if (b.equals("0")) {
return "NOT(" + c + ") AND (" + a + ")";
return And.get(Not.get(c), a);
} else if (a.equals("0")) {
return "(" + c + ") AND (" + b + ")";
return And.get(c, b);
} else if (b.equals("1")) {
return "(" + c + ") OR (" + a + ")";
return Or.get(c, a);
} else if (a.equals("1")) {
return "NOT(" + c + ") AND (" + b + ")";
return And.get(Not.get(c), b);
}
return "(" + c + ") ? (" + b + ") : (" + a + ")";
return CaseWhen.get(c, b, a);
}
if (nextPc != 0) {
pos = nextPc + startByteCode;
......@@ -282,90 +275,90 @@ public class ClassReader {
break;
case 1:
op = "aconst_null";
stack.push("null");
stack.push(Null.INSTANCE);
break;
case 2:
op = "iconst_m1";
stack.push("-1");
stack.push(ConstantNumber.get("-1"));
break;
case 3:
op = "iconst_0";
stack.push("0");
stack.push(ConstantNumber.get("0"));
break;
case 4:
op = "iconst_1";
stack.push("1");
stack.push(ConstantNumber.get("1"));
break;
case 5:
op = "iconst_2";
stack.push("2");
stack.push(ConstantNumber.get("2"));
break;
case 6:
op = "iconst_3";
stack.push("3");
stack.push(ConstantNumber.get("3"));
break;
case 7:
op = "iconst_4";
stack.push("4");
stack.push(ConstantNumber.get("4"));
break;
case 8:
op = "iconst_5";
stack.push("5");
stack.push(ConstantNumber.get("5"));
break;
case 9:
op = "lconst_0";
stack.push("0");
stack.push(ConstantNumber.get("0"));
break;
case 10:
op = "lconst_1";
stack.push("1");
stack.push(ConstantNumber.get("1"));
break;
case 11:
op = "fconst_0";
stack.push("0.0");
stack.push(ConstantNumber.get("0.0"));
break;
case 12:
op = "fconst_1";
stack.push("1.0");
stack.push(ConstantNumber.get("1.0"));
break;
case 13:
op = "fconst_2";
stack.push("2.0");
stack.push(ConstantNumber.get("2.0"));
break;
case 14:
op = "dconst_0";
stack.push("0.0");
stack.push(ConstantNumber.get("0.0"));
break;
case 15:
op = "dconst_1";
stack.push("1.0");
stack.push(ConstantNumber.get("1.0"));
break;
case 16: {
int x = (byte) readByte();
op = "bipush " + x;
stack.push("" + x);
stack.push(ConstantNumber.get(x));
break;
}
case 17: {
int x = (short) readShort();
op = "sipush " + x;
stack.push("" + x);
stack.push(ConstantNumber.get(x));
break;
}
case 18: {
String s = getConstant(readByte());
Token s = getConstant(readByte());
op = "ldc " + s;
stack.push(s);
break;
}
case 19: {
String s = getConstant(readShort());
Token s = getConstant(readShort());
op = "ldc_w " + s;
stack.push(s);
break;
}
case 20: {
String s = getConstant(readShort());
Token s = getConstant(readShort());
op = "ldc2_w " + s;
stack.push(s);
break;
......@@ -481,59 +474,59 @@ public class ClassReader {
stack.push(getVariable(3));
break;
case 46: {
String index = stack.pop();
String ref = stack.pop();
Token index = stack.pop();
Token ref = stack.pop();
op = "iaload";
stack.push(ref + "[" + index + "]");
stack.push(ArrayGet.get(ref, index));
break;
}
case 47: {
String index = stack.pop();
String ref = stack.pop();
Token index = stack.pop();
Token ref = stack.pop();
op = "laload";
stack.push(ref + "[" + index + "]");
stack.push(ArrayGet.get(ref, index));
break;
}
case 48: {
String index = stack.pop();
String ref = stack.pop();
Token index = stack.pop();
Token ref = stack.pop();
op = "faload";
stack.push(ref + "[" + index + "]");
stack.push(ArrayGet.get(ref, index));
break;
}
case 49: {
String index = stack.pop();
String ref = stack.pop();
Token index = stack.pop();
Token ref = stack.pop();
op = "daload";
stack.push(ref + "[" + index + "]");
stack.push(ArrayGet.get(ref, index));
break;
}
case 50: {
String index = stack.pop();
String ref = stack.pop();
Token index = stack.pop();
Token ref = stack.pop();
op = "aaload";
stack.push(ref + "[" + index + "]");
stack.push(ArrayGet.get(ref, index));
break;
}
case 51: {
String index = stack.pop();
String ref = stack.pop();
Token index = stack.pop();
Token ref = stack.pop();
op = "baload";
stack.push(ref + "[" + index + "]");
stack.push(ArrayGet.get(ref, index));
break;
}
case 52: {
String index = stack.pop();
String ref = stack.pop();
Token index = stack.pop();
Token ref = stack.pop();
op = "caload";
stack.push(ref + "[" + index + "]");
stack.push(ArrayGet.get(ref, index));
break;
}
case 53: {
String index = stack.pop();
String ref = stack.pop();
Token index = stack.pop();
Token ref = stack.pop();
op = "saload";
stack.push(ref + "[" + index + "]");
stack.push(ArrayGet.get(ref, index));
break;
}
case 54: {
......@@ -694,15 +687,15 @@ public class ClassReader {
break;
case 89: {
op = "dup";
String x = stack.pop();
Token x = stack.pop();
stack.push(x);
stack.push(x);
break;
}
case 90: {
op = "dup_x1";
String a = stack.pop();
String b = stack.pop();
Token a = stack.pop();
Token b = stack.pop();
stack.push(a);
stack.push(b);
stack.push(a);
......@@ -711,9 +704,9 @@ public class ClassReader {
case 91: {
// TODO currently we don't know the stack types
op = "dup_x2";
String a = stack.pop();
String b = stack.pop();
String c = stack.pop();
Token a = stack.pop();
Token b = stack.pop();
Token c = stack.pop();
stack.push(a);
stack.push(c);
stack.push(b);
......@@ -723,8 +716,8 @@ public class ClassReader {
case 92: {
// TODO currently we don't know the stack types
op = "dup2";
String a = stack.pop();
String b = stack.pop();
Token a = stack.pop();
Token b = stack.pop();
stack.push(b);
stack.push(a);
stack.push(b);
......@@ -734,9 +727,9 @@ public class ClassReader {
case 93: {
// TODO currently we don't know the stack types
op = "dup2_x1";
String a = stack.pop();
String b = stack.pop();
String c = stack.pop();
Token a = stack.pop();
Token b = stack.pop();
Token c = stack.pop();
stack.push(b);
stack.push(a);
stack.push(c);
......@@ -747,10 +740,10 @@ public class ClassReader {
case 94: {
// TODO currently we don't know the stack types
op = "dup2_x2";
String a = stack.pop();
String b = stack.pop();
String c = stack.pop();
String d = stack.pop();
Token a = stack.pop();
Token b = stack.pop();
Token c = stack.pop();
Token d = stack.pop();
stack.push(b);
stack.push(a);
stack.push(d);
......@@ -761,410 +754,410 @@ public class ClassReader {
}
case 95: {
op = "swap";
String a = stack.pop();
String b = stack.pop();
Token a = stack.pop();
Token b = stack.pop();
stack.push(a);
stack.push(b);
break;
}
case 96: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "iadd";
stack.push("(" + a + " + " + b + ")");
stack.push(Operation.get(a, Operation.Type.ADD, b));
break;
}
case 97: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "ladd";
stack.push("(" + a + " + " + b + ")");
stack.push(Operation.get(a, Operation.Type.ADD, b));
break;
}
case 98: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "fadd";
stack.push("(" + a + " + " + b + ")");
stack.push(Operation.get(a, Operation.Type.ADD, b));
break;
}
case 99: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "dadd";
stack.push("(" + a + " + " + b + ")");
stack.push(Operation.get(a, Operation.Type.ADD, b));
break;
}
case 100: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "isub";
stack.push("(" + a + " - " + b + ")");
stack.push(Operation.get(a, Operation.Type.SUBTRACT, b));
break;
}
case 101: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "lsub";
stack.push("(" + a + " - " + b + ")");
stack.push(Operation.get(a, Operation.Type.SUBTRACT, b));
break;
}
case 102: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "fsub";
stack.push("(" + a + " - " + b + ")");
stack.push(Operation.get(a, Operation.Type.SUBTRACT, b));
break;
}
case 103: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "dsub";
stack.push("(" + a + " - " + b + ")");
stack.push(Operation.get(a, Operation.Type.SUBTRACT, b));
break;
}
case 104: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "imul";
stack.push("(" + a + " * " + b + ")");
stack.push(Operation.get(a, Operation.Type.MULTIPLY, b));
break;
}
case 105: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "lmul";
stack.push("(" + a + " * " + b + ")");
stack.push(Operation.get(a, Operation.Type.MULTIPLY, b));
break;
}
case 106: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "fmul";
stack.push("(" + a + " * " + b + ")");
stack.push(Operation.get(a, Operation.Type.MULTIPLY, b));
break;
}
case 107: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "dmul";
stack.push("(" + a + " * " + b + ")");
stack.push(Operation.get(a, Operation.Type.MULTIPLY, b));
break;
}
case 108: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "idiv";
stack.push("(" + a + " / " + b + ")");
stack.push(Operation.get(a, Operation.Type.DIVIDE, b));
break;
}
case 109: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "ldiv";
stack.push("(" + a + " / " + b + ")");
stack.push(Operation.get(a, Operation.Type.DIVIDE, b));
break;
}
case 110: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "fdiv";
stack.push("(" + a + " / " + b + ")");
stack.push(Operation.get(a, Operation.Type.DIVIDE, b));
break;
}
case 111: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "ddiv";
stack.push("(" + a + " / " + b + ")");
stack.push(Operation.get(a, Operation.Type.DIVIDE, b));
break;
}
case 112: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "irem";
stack.push("(" + a + " % " + b + ")");
stack.push(Operation.get(a, Operation.Type.MOD, b));
break;
}
case 113: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "lrem";
stack.push("(" + a + " % " + b + ")");
stack.push(Operation.get(a, Operation.Type.MOD, b));
break;
}
case 114: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "frem";
stack.push("(" + a + " % " + b + ")");
stack.push(Operation.get(a, Operation.Type.MOD, b));
break;
}
case 115: {
String b = stack.pop();
String a = stack.pop();
Token b = stack.pop();
Token a = stack.pop();
op = "drem";
stack.push("(" + a + " % " + b + ")");
break;
}
case 116:
op = "ineg";
break;
case 117:
op = "lneg";
break;
case 118:
op = "fneg";
break;
case 119:
op = "dneg";
break;
case 120:
op = "ishl";
break;
case 121:
op = "lshl";
break;
case 122:
op = "ishr";
break;
case 123:
op = "lshr";
break;
case 124:
op = "iushr";
break;
case 125:
op = "lushr";
break;
case 126:
op = "iand";
break;
case 127:
op = "land";
break;
case 128:
op = "ior";
break;
case 129:
op = "lor";
break;
case 130:
op = "ixor";
break;
case 131:
op = "lxor";
break;
case 132: {
int var = readByte();
int off = (byte) readByte();
op = "iinc " + var + " " + off;
break;
}
case 133:
op = "i2l";
break;
case 134:
op = "i2f";
break;
case 135:
op = "i2d";
break;
case 136:
op = "l2i";
break;
case 137:
op = "l2f";
break;
case 138:
op = "l2d";
break;
case 139:
op = "f2i";
break;
case 140:
op = "f2l";
break;
case 141:
op = "f2d";
break;
case 142:
op = "d2i";
break;
case 143:
op = "d2l";
break;
case 144:
op = "d2f";
break;
case 145:
op = "i2b";
break;
case 146:
op = "i2c";
break;
case 147:
op = "i2s";
break;
stack.push(Operation.get(a, Operation.Type.MOD, b));
break;
}
// case 116:
// op = "ineg";
// break;
// case 117:
// op = "lneg";
// break;
// case 118:
// op = "fneg";
// break;
// case 119:
// op = "dneg";
// break;
// case 120:
// op = "ishl";
// break;
// case 121:
// op = "lshl";
// break;
// case 122:
// op = "ishr";
// break;
// case 123:
// op = "lshr";
// break;
// case 124:
// op = "iushr";
// break;
// case 125:
// op = "lushr";
// break;
// case 126:
// op = "iand";
// break;
// case 127:
// op = "land";
// break;
// case 128:
// op = "ior";
// break;
// case 129:
// op = "lor";
// break;
// case 130:
// op = "ixor";
// break;
// case 131:
// op = "lxor";
// break;
// case 132: {
// int var = readByte();
// int off = (byte) readByte();
// op = "iinc " + var + " " + off;
// break;
// }
// case 133:
// op = "i2l";
// break;
// case 134:
// op = "i2f";
// break;
// case 135:
// op = "i2d";
// break;
// case 136:
// op = "l2i";
// break;
// case 137:
// op = "l2f";
// break;
// case 138:
// op = "l2d";
// break;
// case 139:
// op = "f2i";
// break;
// case 140:
// op = "f2l";
// break;
// case 141:
// op = "f2d";
// break;
// case 142:
// op = "d2i";
// break;
// case 143:
// op = "d2l";
// break;
// case 144:
// op = "d2f";
// break;
// case 145:
// op = "i2b";
// break;
// case 146:
// op = "i2c";
// break;
// case 147:
// op = "i2s";
// break;
case 148: {
String b = stack.pop(), a = stack.pop();
stack.push("SIGN(" + a + " - " + b + ")");
Token b = stack.pop(), a = stack.pop();
stack.push(new Function("SIGN", Operation.get(a, Operation.Type.SUBTRACT, b)));
op = "lcmp";
break;
}
case 149:
op = "fcmpl";
break;
case 150:
op = "fcmpg";
break;
case 151:
op = "dcmpl";
break;
case 152:
op = "dcmpg";
break;
// case 149:
// op = "fcmpl";
// break;
// case 150:
// op = "fcmpg";
// break;
// case 151:
// op = "dcmpl";
// break;
// case 152:
// op = "dcmpg";
// break;
case 153:
condition = true;
nextPc = getAbsolutePos(pos, readShort());
stack.push("(" + stack.pop() + " = 0)");
stack.push(Operation.get(stack.pop(), Operation.Type.EQUALS, ConstantNumber.get(0)));
op = "ifeq " + nextPc;
break;
case 154:
condition = true;
nextPc = getAbsolutePos(pos, readShort());
stack.push("(" + stack.pop() + " <> 0)");
stack.push(Operation.get(stack.pop(), Operation.Type.NOT_EQUALS, ConstantNumber.get(0)));
op = "ifne " + nextPc;
break;
case 155:
condition = true;
nextPc = getAbsolutePos(pos, readShort());
stack.push("(" + stack.pop() + " < 0)");
stack.push(Operation.get(stack.pop(), Operation.Type.SMALLER, ConstantNumber.get(0)));
op = "iflt " + nextPc;
break;
case 156:
condition = true;
nextPc = getAbsolutePos(pos, readShort());
stack.push("(" + stack.pop() + " >= 0)");
stack.push(Operation.get(stack.pop(), Operation.Type.BIGGER_EQUALS, ConstantNumber.get(0)));
op = "ifge " + nextPc;
break;
case 157:
condition = true;
nextPc = getAbsolutePos(pos, readShort());
stack.push("(" + stack.pop() + " > 0)");
stack.push(Operation.get(stack.pop(), Operation.Type.BIGGER, ConstantNumber.get(0)));
op = "ifgt " + nextPc;
break;
case 158:
condition = true;
nextPc = getAbsolutePos(pos, readShort());
stack.push("(" + stack.pop() + "<= 0)");
stack.push(Operation.get(stack.pop(), Operation.Type.SMALLER_EQUALS, ConstantNumber.get(0)));
op = "ifle " + nextPc;
break;
case 159: {
condition = true;
nextPc = getAbsolutePos(pos, readShort());
String b = stack.pop(), a = stack.pop();
stack.push("(" + a + " = " + b + ")");
Token b = stack.pop(), a = stack.pop();
stack.push(Operation.get(a, Operation.Type.EQUALS, b));
op = "if_icmpeq " + nextPc;
break;
}
case 160: {
condition = true;
nextPc = getAbsolutePos(pos, readShort());
String b = stack.pop(), a = stack.pop();
stack.push("(" + a + " <> " + b + ")");
Token b = stack.pop(), a = stack.pop();
stack.push(Operation.get(a, Operation.Type.NOT_EQUALS, b));
op = "if_icmpne " + nextPc;
break;
}
case 161: {
condition = true;
nextPc = getAbsolutePos(pos, readShort());
String b = stack.pop(), a = stack.pop();
stack.push("(" + a + " < " + b + ")");
Token b = stack.pop(), a = stack.pop();
stack.push(Operation.get(a, Operation.Type.SMALLER, b));
op = "if_icmplt " + nextPc;
break;
}
case 162: {
condition = true;
nextPc = getAbsolutePos(pos, readShort());
String b = stack.pop(), a = stack.pop();
stack.push("(" + a + " >= " + b + ")");
Token b = stack.pop(), a = stack.pop();
stack.push(Operation.get(a, Operation.Type.BIGGER_EQUALS, b));
op = "if_icmpge " + nextPc;
break;
}
case 163: {
condition = true;
nextPc = getAbsolutePos(pos, readShort());
String b = stack.pop(), a = stack.pop();
stack.push("(" + a + " > " + b + ")");
Token b = stack.pop(), a = stack.pop();
stack.push(Operation.get(a, Operation.Type.BIGGER, b));
op = "if_icmpgt " + nextPc;
break;
}
case 164: {
condition = true;
nextPc = getAbsolutePos(pos, readShort());
String b = stack.pop(), a = stack.pop();
stack.push("(" + a + " <= " + b + ")");
Token b = stack.pop(), a = stack.pop();
stack.push(Operation.get(a, Operation.Type.SMALLER_EQUALS, b));
op = "if_icmple " + nextPc;
break;
}
case 165: {
condition = true;
nextPc = getAbsolutePos(pos, readShort());
String b = stack.pop(), a = stack.pop();
stack.push("(" + a + " = " + b + ")");
Token b = stack.pop(), a = stack.pop();
stack.push(Operation.get(a, Operation.Type.EQUALS, b));
op = "if_acmpeq " + nextPc;
break;
}
case 166: {
condition = true;
nextPc = getAbsolutePos(pos, readShort());
String b = stack.pop(), a = stack.pop();
stack.push("(" + a + " <> " + b + ")");
Token b = stack.pop(), a = stack.pop();
stack.push(Operation.get(a, Operation.Type.NOT_EQUALS, b));
op = "if_acmpne " + nextPc;
break;
}
case 167:
nextPc = getAbsolutePos(pos, readShort());
op = "goto " + nextPc;
break;
case 168:
// TODO not supported yet
op = "jsr " + getAbsolutePos(pos, readShort());
break;
case 169:
// TODO not supported yet
op = "ret " + readByte();
break;
case 170: {
int start = pos;
pos += 4 - ((pos - startByteCode) & 3);
int def = readInt();
int low = readInt(), high = readInt();
int n = high - low + 1;
op = "tableswitch default:" + getAbsolutePos(start, def);
StringBuilder buff = new StringBuilder();
for (int i = 0; i < n; i++) {
buff.append(' ').append(low++).append(":").append(getAbsolutePos(start, readInt()));
}
op += buff.toString();
// pos += n * 4;
break;
}
case 171: {
int start = pos;
pos += 4 - ((pos - startByteCode) & 3);
int def = readInt();
int n = readInt();
op = "lookupswitch default:" + getAbsolutePos(start, def);
StringBuilder buff = new StringBuilder();
for (int i = 0; i < n; i++) {
buff.append(' ').append(readInt()).append(":").append(getAbsolutePos(start, readInt()));
}
op += buff.toString();
// pos += n * 8;
break;
}
// case 167:
// nextPc = getAbsolutePos(pos, readShort());
// op = "goto " + nextPc;
// break;
// case 168:
// // TODO not supported yet
// op = "jsr " + getAbsolutePos(pos, readShort());
// break;
// case 169:
// // TODO not supported yet
// op = "ret " + readByte();
// break;
// case 170: {
// int start = pos;
// pos += 4 - ((pos - startByteCode) & 3);
// int def = readInt();
// int low = readInt(), high = readInt();
// int n = high - low + 1;
// op = "tableswitch default:" + getAbsolutePos(start, def);
// StringBuilder buff = new StringBuilder();
// for (int i = 0; i < n; i++) {
// buff.append(' ').append(low++).append(":").append(getAbsolutePos(start, readInt()));
// }
// op += buff.toString();
// // pos += n * 4;
// break;
// }
// case 171: {
// int start = pos;
// pos += 4 - ((pos - startByteCode) & 3);
// int def = readInt();
// int n = readInt();
// op = "lookupswitch default:" + getAbsolutePos(start, def);
// StringBuilder buff = new StringBuilder();
// for (int i = 0; i < n; i++) {
// buff.append(' ').append(readInt()).append(":").append(getAbsolutePos(start, readInt()));
// }
// op += buff.toString();
// // pos += n * 8;
// break;
// }
case 172:
op = "ireturn";
end = true;
......@@ -1191,33 +1184,33 @@ public class ClassReader {
stack.push(null);
end = true;
break;
case 178:
op = "getstatic " + getField(readShort());
break;
case 179:
op = "putstatic " + getField(readShort());
break;
// case 178:
// op = "getstatic " + getField(readShort());
// break;
// case 179:
// op = "putstatic " + getField(readShort());
// break;
case 180: {
String field = getField(readShort());
String p = stack.pop();
p = p + "." + field.substring(Math.max(field.lastIndexOf('$'), field.lastIndexOf('.')) + 1, field.indexOf(' '));
if (p.startsWith("this.")) {
p = p.substring(5);
Token p = stack.pop();
String s = p + "." + field.substring(field.lastIndexOf('.') + 1, field.indexOf(' '));
if (s.startsWith("this.")) {
s = s.substring(5);
}
stack.push(p);
stack.push(Variable.get(s, fieldMap.get(s)));
op = "getfield " + field;
break;
}
case 181:
op = "putfield " + getField(readShort());
break;
// case 181:
// op = "putfield " + getField(readShort());
// break;
case 182: {
String method = getMethod(readShort());
op = "invokevirtual " + method;
if (method.equals("java/lang/String.equals (Ljava/lang/Object;)Z")) {
String a = stack.pop();
String b = stack.pop();
stack.push("(" + a + " = " + b + ")");
Token a = stack.pop();
Token b = stack.pop();
stack.push(Operation.get(a, Operation.Type.EQUALS, b));
} else if (method.equals("java/lang/Integer.intValue ()I")) {
// ignore
} else if (method.equals("java/lang/Long.longValue ()J")) {
......@@ -1225,112 +1218,116 @@ public class ClassReader {
}
break;
}
case 183:
op = "invokespecial " + getMethod(readShort());
case 183: {
String methodName = getMethod(readShort());
op = "invokespecial " + methodName;
break;
}
case 184:
op = "invokestatic " + getMethod(readShort());
break;
case 185: {
int methodRef = readShort();
readByte();
readByte();
op = "invokeinterface " + getMethod(methodRef);
break;
}
case 187:
op = "new " + cpString[cpInt[readShort()]];
break;
case 188:
op = "newarray " + readByte();
break;
case 189:
op = "anewarray " + cpString[readShort()];
break;
case 190:
op = "arraylength";
break;
case 191:
op = "athrow";
break;
case 192:
op = "checkcast " + cpString[readShort()];
break;
case 193:
op = "instanceof " + cpString[readShort()];
break;
case 194:
op = "monitorenter";
break;
case 195:
op = "monitorexit";
break;
case 196: {
opCode = readByte();
switch (opCode) {
case 21:
op = "wide iload " + readShort();
break;
case 22:
op = "wide lload " + readShort();
break;
case 23:
op = "wide fload " + readShort();
break;
case 24:
op = "wide dload " + readShort();
break;
case 25:
op = "wide aload " + readShort();
break;
case 54:
op = "wide istore " + readShort();
break;
case 55:
op = "wide lstore " + readShort();
break;
case 56:
op = "wide fstore " + readShort();
break;
case 57:
op = "wide dstore " + readShort();
break;
case 58:
op = "wide astore " + readShort();
break;
case 132: {
int var = readShort();
int off = (short) readShort();
op = "wide iinc " + var + " " + off;
break;
}
case 169:
op = "wide ret " + readShort();
break;
default:
throw new RuntimeException("Unsupported wide opCode " + opCode);
}
break;
}
case 197:
op = "multianewarray " + cpString[readShort()] + " " + readByte();
break;
case 198: {
condition = true;
nextPc = getAbsolutePos(pos, readShort());
String a = stack.pop();
stack.push("(" + a + " IS NULL)");
op = "ifnull " + nextPc;
break;
}
case 199: {
condition = true;
nextPc = getAbsolutePos(pos, readShort());
String a = stack.pop();
stack.push("(" + a + " IS NOT NULL)");
op = "ifnonnull " + nextPc;
break;
}
// case 185: {
// int methodRef = readShort();
// readByte();
// readByte();
// op = "invokeinterface " + getMethod(methodRef);
// break;
// }
case 187: {
String className = constantPool[constantPool[readShort()].intValue()].toString();
op = "new " + className;
break;
}
// case 188:
// op = "newarray " + readByte();
// break;
// case 189:
// op = "anewarray " + cpString[readShort()];
// break;
// case 190:
// op = "arraylength";
// break;
// case 191:
// op = "athrow";
// break;
// case 192:
// op = "checkcast " + cpString[readShort()];
// break;
// case 193:
// op = "instanceof " + cpString[readShort()];
// break;
// case 194:
// op = "monitorenter";
// break;
// case 195:
// op = "monitorexit";
// break;
// case 196: {
// opCode = readByte();
// switch (opCode) {
// case 21:
// op = "wide iload " + readShort();
// break;
// case 22:
// op = "wide lload " + readShort();
// break;
// case 23:
// op = "wide fload " + readShort();
// break;
// case 24:
// op = "wide dload " + readShort();
// break;
// case 25:
// op = "wide aload " + readShort();
// break;
// case 54:
// op = "wide istore " + readShort();
// break;
// case 55:
// op = "wide lstore " + readShort();
// break;
// case 56:
// op = "wide fstore " + readShort();
// break;
// case 57:
// op = "wide dstore " + readShort();
// break;
// case 58:
// op = "wide astore " + readShort();
// break;
// case 132: {
// int var = readShort();
// int off = (short) readShort();
// op = "wide iinc " + var + " " + off;
// break;
// }
// case 169:
// op = "wide ret " + readShort();
// break;
// default:
// throw new RuntimeException("Unsupported wide opCode " + opCode);
// }
// break;
// }
// case 197:
// op = "multianewarray " + cpString[readShort()] + " " + readByte();
// break;
// case 198: {
// condition = true;
// nextPc = getAbsolutePos(pos, readShort());
// Token a = stack.pop();
// stack.push("(" + a + " IS NULL)");
// op = "ifnull " + nextPc;
// break;
// }
// case 199: {
// condition = true;
// nextPc = getAbsolutePos(pos, readShort());
// Token a = stack.pop();
// stack.push("(" + a + " IS NOT NULL)");
// op = "ifnonnull " + nextPc;
// break;
// }
case 200:
op = "goto_w " + getAbsolutePos(pos, readInt());
break;
......@@ -1343,57 +1340,49 @@ public class ClassReader {
debug(" " + startPos + ": " + op);
}
private void setVariable(int x, String value) {
private void setVariable(int x, Token value) {
while (x >= variables.size()) {
variables.add("p" + variables.size());
variables.add(Variable.get("p" + variables.size(), null));
}
variables.set(x, value);
}
private String getVariable(int x) {
private Token getVariable(int x) {
if (x == 0) {
return "this";
return Variable.THIS;
}
while (x >= variables.size()) {
variables.add("p" + variables.size());
variables.add(Variable.get("p" + variables.size(), null));
}
return variables.get(x);
}
private String getField(int fieldRef) {
int field = cpInt[fieldRef];
int field = constantPool[fieldRef].intValue();
int classIndex = field >>> 16;
int nameAndType = cpInt[field & 0xffff];
String className = cpString[cpInt[classIndex]] + "." + cpString[nameAndType >>> 16] + " " + cpString[nameAndType & 0xffff];
int nameAndType = constantPool[field & 0xffff].intValue();
String className = constantPool[constantPool[classIndex].intValue()] + "." + constantPool[nameAndType >>> 16] + " " + constantPool[nameAndType & 0xffff];
return className;
}
private String getMethod(int methodRef) {
int method = cpInt[methodRef];
int method = constantPool[methodRef].intValue();
int classIndex = method >>> 16;
int nameAndType = cpInt[method & 0xffff];
String className = cpString[cpInt[classIndex]] + "." + cpString[nameAndType >>> 16] + " " + cpString[nameAndType & 0xffff];
int nameAndType = constantPool[method & 0xffff].intValue();
String className = constantPool[constantPool[classIndex].intValue()] + "." + constantPool[nameAndType >>> 16] + " " + constantPool[nameAndType & 0xffff];
return className;
}
private String getConstant(int constantRef) {
switch (cpType[constantRef]) {
case 3:
// int
return cpString[constantRef];
case 4:
// float
return cpString[constantRef];
case 5:
// long
return cpString[constantRef];
case 6:
// double
return cpString[constantRef];
case 8:
// string
// TODO escape
return "\"" + cpString[cpInt[constantRef]] + "\"";
private Constant getConstant(int constantRef) {
Constant c = constantPool[constantRef];
switch (c.getType()) {
case INT:
case FLOAT:
case DOUBLE:
case LONG:
return c;
case STRING_REF:
return constantPool[c.intValue()];
default:
throw new RuntimeException("Not a constant: " + constantRef);
}
......
h2/src/tools/org/h2/jaqu/bytecode/Constant.java 0 → 100644
浏览文件 @ fb7066ce
/*
* Copyright 2004-2009 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.jaqu.bytecode;
import org.h2.jaqu.Token;
/**
* An expression in the constant pool.
*/
public interface Constant extends Token {
/**
* The constant pool type.
*/
enum Type {
STRING,
INT,
FLOAT,
DOUBLE,
LONG,
CLASS_REF,
STRING_REF,
FIELD_REF,
METHOD_REF,
INTERFACE_METHOD_REF,
NAME_AND_TYPE
}
Constant.Type getType();
int intValue();
}
h2/src/tools/org/h2/jaqu/bytecode/ConstantNumber.java 0 → 100644
浏览文件 @ fb7066ce
/*
* Copyright 2004-2009 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.jaqu.bytecode;
import org.h2.jaqu.Query;
import org.h2.jaqu.SQLStatement;
/**
* A literal number.
*/
public class ConstantNumber implements Constant {
private final String value;
private final Type type;
private final long longValue;
private ConstantNumber(String value, long longValue, Type type) {
this.value = value;
this.longValue = longValue;
this.type = type;
}
static ConstantNumber get(String v) {
return new ConstantNumber(v, 0, Type.STRING);
}
static ConstantNumber get(int v) {
return new ConstantNumber("" + v, v, Type.INT);
}
static ConstantNumber get(long v) {
return new ConstantNumber("" + v, v, Type.LONG);
}
static ConstantNumber get(String s, long x, Type type) {
return new ConstantNumber(s, x, type);
}
public int intValue() {
return (int) longValue;
}
public String toString() {
return value;
}
public <T> void appendSQL(SQLStatement stat, Query<T> query) {
stat.appendSQL(toString());
}
public Constant.Type getType() {
return type;
}
}
h2/src/tools/org/h2/jaqu/bytecode/ConstantString.java 0 → 100644
浏览文件 @ fb7066ce
/*
* Copyright 2004-2009 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.jaqu.bytecode;
import org.h2.jaqu.Query;
import org.h2.jaqu.SQLStatement;
import org.h2.util.StringUtils;
/**
* A string constant.
*/
public class ConstantString implements Constant {
private final String value;
private ConstantString(String value) {
this.value = value;
}
static ConstantString get(String v) {
return new ConstantString(v);
}
public String toString() {
return value;
}
public int intValue() {
return 0;
}
public <T> void appendSQL(SQLStatement stat, Query<T> query) {
stat.appendSQL(StringUtils.quoteStringSQL(value));
}
public Constant.Type getType() {
return Constant.Type.STRING;
}
}
h2/src/tools/org/h2/jaqu/bytecode/Function.java 0 → 100644
浏览文件 @ fb7066ce
/*
* Copyright 2004-2009 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.jaqu.bytecode;
import org.h2.jaqu.Query;
import org.h2.jaqu.SQLStatement;
import org.h2.jaqu.Token;
/**
* A method call.
*/
class Function implements Token {
private final String name;
private final Token expr;
Function(String name, Token expr) {
this.name = name;
this.expr = expr;
}
public String toString() {
return name + "(" + expr + ")";
}
public <T> void appendSQL(SQLStatement stat, Query<T> query) {
// untested
stat.appendSQL(name + "(");
expr.appendSQL(stat, query);
stat.appendSQL(")");
}
}
h2/src/tools/org/h2/jaqu/bytecode/Not.java 0 → 100644
浏览文件 @ fb7066ce
/*
* Copyright 2004-2009 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.jaqu.bytecode;
import org.h2.jaqu.Query;
import org.h2.jaqu.SQLStatement;
import org.h2.jaqu.Token;
/**
* A NOT condition.
*/
public class Not implements Token {
private Token expr;
private Not(Token expr) {
this.expr = expr;
}
static Token get(Token expr) {
if (expr instanceof Not) {
return ((Not) expr).expr;
} else if (expr instanceof Operation) {
return ((Operation) expr).reverse();
}
return new Not(expr);
}
Token not() {
return expr;
}
public <T> void appendSQL(SQLStatement stat, Query<T> query) {
// untested
stat.appendSQL("NOT(");
expr.appendSQL(stat, query);
stat.appendSQL(")");
}
}
h2/src/tools/org/h2/jaqu/bytecode/Null.java 0 → 100644
浏览文件 @ fb7066ce
/*
* Copyright 2004-2009 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.jaqu.bytecode;
import org.h2.jaqu.Query;
import org.h2.jaqu.SQLStatement;
import org.h2.jaqu.Token;
/**
* The Java 'null'.
*/
public class Null implements Token {
static final Null INSTANCE = new Null();
private Null() {
// don't allow to create new instances
}
public String toString() {
return "null";
}
public <T> void appendSQL(SQLStatement stat, Query<T> query) {
// untested
stat.appendSQL("NULL");
}
}
h2/src/tools/org/h2/jaqu/bytecode/Operation.java 0 → 100644
浏览文件 @ fb7066ce
/*
* Copyright 2004-2009 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.jaqu.bytecode;
import org.h2.jaqu.Query;
import org.h2.jaqu.SQLStatement;
import org.h2.jaqu.Token;
/**
* A mathematical or comparison operation.
*/
class Operation implements Token {
/**
* The operation type.
*/
enum Type {
EQUALS("=") {
Type reverse() {
return NOT_EQUALS;
}
},
NOT_EQUALS("<>") {
Type reverse() {
return EQUALS;
}
},
BIGGER(">") {
Type reverse() {
return SMALLER_EQUALS;
}
},
BIGGER_EQUALS(">=") {
Type reverse() {
return SMALLER;
}
},
SMALLER_EQUALS("<=") {
Type reverse() {
return BIGGER;
}
},
SMALLER("<") {
Type reverse() {
return BIGGER_EQUALS;
}
},
ADD("+"),
SUBTRACT("-"),
MULTIPLY("*"),
DIVIDE("/"),
MOD("%");
private String name;
Type(String name) {
this.name = name;
}
public String toString() {
return name;
}
Type reverse() {
return null;
}
}
private final Token left, right;
private final Type op;
private Operation(Token left, Type op, Token right) {
this.left = left;
this.op = op;
this.right = right;
}
static Token get(Token left, Type op, Token right) {
if (op == Type.NOT_EQUALS && "0".equals(right.toString())) {
return left;
}
return new Operation(left, op, right);
}
public String toString() {
return left + " " + op + " " + right;
}
public Token reverse() {
return get(left, op.reverse(), right);
}
public <T> void appendSQL(SQLStatement stat, Query<T> query) {
left.appendSQL(stat, query);
stat.appendSQL(op.toString());
right.appendSQL(stat, query);
}
}
h2/src/tools/org/h2/jaqu/bytecode/Or.java 0 → 100644
浏览文件 @ fb7066ce
/*
* Copyright 2004-2009 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.jaqu.bytecode;
import org.h2.jaqu.Query;
import org.h2.jaqu.SQLStatement;
import org.h2.jaqu.Token;
/**
* An OR expression.
*/
public class Or implements Token {
private final Token left, right;
private Or(Token left, Token right) {
this.left = left;
this.right = right;
}
static Or get(Token left, Token right) {
return new Or(left, right);
}
public <T> void appendSQL(SQLStatement stat, Query<T> query) {
// untested
left.appendSQL(stat, query);
stat.appendSQL(" OR ");
right.appendSQL(stat, query);
}
}
h2/src/tools/org/h2/jaqu/bytecode/Variable.java 0 → 100644
浏览文件 @ fb7066ce
/*
* Copyright 2004-2009 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.jaqu.bytecode;
import org.h2.jaqu.Query;
import org.h2.jaqu.SQLStatement;
import org.h2.jaqu.Token;
/**
* A variable.
*/
public class Variable implements Token {
static final Variable THIS = new Variable("this", null);
private final String name;
private final Object obj;
private Variable(String name, Object obj) {
this.name = name;
this.obj = obj;
}
static Variable get(String name, Object obj) {
return new Variable(name, obj);
}
public String toString() {
return name;
}
public <T> void appendSQL(SQLStatement stat, Query<T> query) {
query.appendSQL(stat, obj);
}
}
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