Package org.glassfish.rmic.tools.asm

Class Assembler

java.lang.Object

org.glassfish.rmic.tools.asm.Assembler

All Implemented Interfaces:

Constants, RuntimeConstants

public final class Assembler
extends java.lang.Object
implements Constants

This class is used to assemble the bytecode instructions for a method. WARNING: The contents of this source file are not part of any supported API. Code that depends on them does so at its own risk: they are subject to change or removal without notice.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static int[]	arrayModifiers
(package private) static int[]	arrayModifiersOpc
(package private) Label	first
(package private) static int[]	JcovClassCountArray
(package private) static java.lang.String	JcovClassLine
(package private) static java.lang.String	JcovDataLine
(package private) static java.lang.String	JcovHeadingLine
(package private) static java.lang.String	JcovMagicLine
(package private) static java.lang.String	JcovSrcfileLine
(package private) static java.lang.String	JcovTimestampLine
(package private) Instruction	last
(package private) int	maxdepth
(package private) int	maxpc
(package private) int	maxvar
(package private) static int	NEEDED
(package private) static int	NOTREACHED
(package private) static int	REACHED
(package private) static java.util.Vector<java.lang.String>	SourceClassList
(package private) static java.util.Vector<java.lang.String>	TmpCovTable

Fields inherited from interface org.glassfish.rmic.tools.java.Constants

ABSTRACT, ACCM_CLASS, ACCM_FIELD, ACCM_INNERCLASS, ACCM_MEMBER, ACCM_METHOD, ADD, AND, ARRAY, ARRAYACCESS, ASGADD, ASGBITAND, ASGBITOR, ASGBITXOR, ASGDIV, ASGLSHIFT, ASGMUL, ASGREM, ASGRSHIFT, ASGSUB, ASGURSHIFT, ASSIGN, ATT_ALL, ATT_ALLCLASSES, ATT_CODE, BITAND, BITNOT, BITOR, BITXOR, BOOLEAN, BOOLEANVAL, BREAK, BYTE, BYTEVAL, CASE, CAST, CATCH, CHAR, CHARVAL, CLASS, COLON, COMMA, COMMENT, COND, CONST, CONTINUE, CONVERT, CS_BINARY, CS_CHECKED, CS_COMPILED, CS_NOTFOUND, CS_PARSED, CS_SOURCE, CS_UNDECIDED, CS_UNDEFINED, CT_BLOCK, CT_BRANCH_FALSE, CT_BRANCH_TRUE, CT_CASE, CT_FIKT_METHOD, CT_FIKT_RET, CT_FIRST_KIND, CT_LAST_KIND, CT_METHOD, CT_SWITH_WO_DEF, DEC, DECLARATION, DEFAULT, DIV, DO, DOUBLE, DOUBLEVAL, ELSE, EQ, ERROR, EXPR, EXPRESSION, EXTENDS, F_COVDATA, F_COVERAGE, F_DEBUG_LINES, F_DEBUG_SOURCE, F_DEBUG_VARS, F_DEPENDENCIES, F_DEPRECATION, F_DUMP, F_ERRORSREPORTED, F_OPT, F_OPT_INTERCLASS, F_PRINT_DEPENDENCIES, F_STRICTDEFAULT, F_VERBOSE, F_VERSION12, F_WARNINGS, FALSE, FIELD, FINAL, FINALLY, FLOAT, FLOATVAL, FOR, GE, GOTO, GT, idAppend, idClass, idClassInit, idClone, idCode, idConstantValue, idCoverageTable, idDeprecated, idDocumentation, IDENT, idExceptions, idFinallyReturnValue, idGetClass, idInit, idInnerClasses, idJavaIoSerializable, idJavaLang, idJavaLangClass, idJavaLangCloneable, idJavaLangError, idJavaLangException, idJavaLangObject, idJavaLangRuntimeException, idJavaLangString, idJavaLangStringBuffer, idJavaLangThrowable, idLength, idLineNumberTable, idLocalVariableTable, idNew, idNull, idSourceFile, idStar, idSuper, idSynthetic, idThis, idToString, idTYPE, idValueOf, IF, IMPLEMENTS, IMPORT, INC, INLINEMETHOD, INLINENEWINSTANCE, INLINERETURN, INSTANCEOF, INT, INTERFACE, INTVAL, LBRACE, LE, LENGTH, LONG, LONGVAL, LPAREN, LSHIFT, LSQBRACKET, LT, M_ABSTRACT, M_ANONYMOUS, M_DEPRECATED, M_FINAL, M_INLINEABLE, M_INTERFACE, M_LOCAL, M_NATIVE, M_PRIVATE, M_PROTECTED, M_PUBLIC, M_STATIC, M_STRICTFP, M_SYNCHRONIZED, M_SYNTHETIC, M_TRANSIENT, M_VOLATILE, MAXFILESIZE, MAXLINENUMBER, METHOD, MM_CLASS, MM_FIELD, MM_MEMBER, MM_METHOD, MUL, NATIVE, NE, NEG, NEW, NEWARRAY, NEWFROMNAME, NEWINSTANCE, NOT, NULL, opNames, opPrecedence, OR, PACKAGE, paraDeprecated, POS, POSTDEC, POSTINC, PREDEC, prefixAccess, prefixArray, prefixClass, prefixLoc, prefixThis, prefixVal, PREINC, PRIVATE, PROTECTED, PUBLIC, QUESTIONMARK, RBRACE, REM, RETURN, RPAREN, RSHIFT, RSQBRACKET, SEMICOLON, SHORT, SHORTVAL, SIG_INNERCLASS, SIGC_INNERCLASS, STAT, STATIC, STRICTFP, STRINGVAL, SUB, SUPER, SWITCH, SYNCHRONIZED, TC_ARRAY, TC_BOOLEAN, TC_BYTE, TC_CHAR, TC_CLASS, TC_DOUBLE, TC_ERROR, TC_FLOAT, TC_INT, TC_LONG, TC_METHOD, TC_NULL, TC_SHORT, TC_VOID, THIS, THROW, THROWS, TM_ARRAY, TM_BOOLEAN, TM_BYTE, TM_CHAR, TM_CLASS, TM_DOUBLE, TM_ERROR, TM_FLOAT, TM_INT, TM_INT32, TM_INTEGER, TM_LONG, TM_METHOD, TM_NULL, TM_NUM32, TM_NUM64, TM_NUMBER, TM_REAL, TM_REFERENCE, TM_SHORT, TM_VOID, tracing, TRANSIENT, TRUE, TRY, TYPE, URSHIFT, VARDECLARATION, VOID, VOLATILE, WHEREOFFSETBITS, WHILE

Fields inherited from interface org.glassfish.rmic.tools.java.RuntimeConstants

ACC_ABSTRACT, ACC_FINAL, ACC_INTERFACE, ACC_NATIVE, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_TRANSIENT, ACC_VOLATILE, CONSTANT_CLASS, CONSTANT_DOUBLE, CONSTANT_FIELD, CONSTANT_FLOAT, CONSTANT_INTEGER, CONSTANT_INTERFACEMETHOD, CONSTANT_INVOKEDYNAMIC, CONSTANT_LONG, CONSTANT_METHOD, CONSTANT_METHODHANDLE, CONSTANT_METHODTYPE, CONSTANT_NAMEANDTYPE, CONSTANT_STRING, CONSTANT_UNICODE, CONSTANT_UTF8, JAVA_DEFAULT_MINOR_VERSION, JAVA_DEFAULT_VERSION, JAVA_MAGIC, JAVA_MAX_SUPPORTED_MINOR_VERSION, JAVA_MAX_SUPPORTED_VERSION, JAVA_MIN_SUPPORTED_VERSION, opc_aaload, opc_aastore, opc_aconst_null, opc_aload, opc_aload_0, opc_aload_1, opc_aload_2, opc_aload_3, opc_anewarray, opc_areturn, opc_arraylength, opc_astore, opc_astore_0, opc_astore_1, opc_astore_2, opc_astore_3, opc_athrow, opc_baload, opc_bastore, opc_bipush, opc_breakpoint, opc_caload, opc_castore, opc_checkcast, opc_d2f, opc_d2i, opc_d2l, opc_dadd, opc_daload, opc_dastore, opc_dcmpg, opc_dcmpl, opc_dconst_0, opc_dconst_1, opc_ddiv, opc_dead, opc_dload, opc_dload_0, opc_dload_1, opc_dload_2, opc_dload_3, opc_dmul, opc_dneg, opc_drem, opc_dreturn, opc_dstore, opc_dstore_0, opc_dstore_1, opc_dstore_2, opc_dstore_3, opc_dsub, opc_dup, opc_dup_x1, opc_dup_x2, opc_dup2, opc_dup2_x1, opc_dup2_x2, opc_f2d, opc_f2i, opc_f2l, opc_fadd, opc_faload, opc_fastore, opc_fcmpg, opc_fcmpl, opc_fconst_0, opc_fconst_1, opc_fconst_2, opc_fdiv, opc_fload, opc_fload_0, opc_fload_1, opc_fload_2, opc_fload_3, opc_fmul, opc_fneg, opc_frem, opc_freturn, opc_fstore, opc_fstore_0, opc_fstore_1, opc_fstore_2, opc_fstore_3, opc_fsub, opc_getfield, opc_getstatic, opc_goto, opc_goto_w, opc_i2b, opc_i2c, opc_i2d, opc_i2f, opc_i2l, opc_i2s, opc_iadd, opc_iaload, opc_iand, opc_iastore, opc_iconst_0, opc_iconst_1, opc_iconst_2, opc_iconst_3, opc_iconst_4, opc_iconst_5, opc_iconst_m1, opc_idiv, opc_if_acmpeq, opc_if_acmpne, opc_if_icmpeq, opc_if_icmpge, opc_if_icmpgt, opc_if_icmple, opc_if_icmplt, opc_if_icmpne, opc_ifeq, opc_ifge, opc_ifgt, opc_ifle, opc_iflt, opc_ifne, opc_ifnonnull, opc_ifnull, opc_iinc, opc_iload, opc_iload_0, opc_iload_1, opc_iload_2, opc_iload_3, opc_imul, opc_ineg, opc_instanceof, opc_invokedynamic, opc_invokeinterface, opc_invokespecial, opc_invokestatic, opc_invokevirtual, opc_ior, opc_irem, opc_ireturn, opc_ishl, opc_ishr, opc_istore, opc_istore_0, opc_istore_1, opc_istore_2, opc_istore_3, opc_isub, opc_iushr, opc_ixor, opc_jsr, opc_jsr_w, opc_l2d, opc_l2f, opc_l2i, opc_label, opc_ladd, opc_laload, opc_land, opc_lastore, opc_lcmp, opc_lconst_0, opc_lconst_1, opc_ldc, opc_ldc_w, opc_ldc2_w, opc_ldiv, opc_lload, opc_lload_0, opc_lload_1, opc_lload_2, opc_lload_3, opc_lmul, opc_lneg, opc_lookupswitch, opc_lor, opc_lrem, opc_lreturn, opc_lshl, opc_lshr, opc_lstore, opc_lstore_0, opc_lstore_1, opc_lstore_2, opc_lstore_3, opc_lsub, opc_lushr, opc_lxor, opc_monitorenter, opc_monitorexit, opc_multianewarray, opc_new, opc_newarray, opc_nop, opc_pop, opc_pop2, opc_putfield, opc_putstatic, opc_ret, opc_return, opc_saload, opc_sastore, opc_sipush, opc_swap, opc_tableswitch, opc_try, opc_wide, opcLengths, opcNames, SIG_ARRAY, SIG_BOOLEAN, SIG_BYTE, SIG_CHAR, SIG_CLASS, SIG_DOUBLE, SIG_ENDCLASS, SIG_ENDMETHOD, SIG_FLOAT, SIG_INT, SIG_LONG, SIG_METHOD, SIG_PACKAGE, SIG_SHORT, SIG_VOID, SIGC_ARRAY, SIGC_BOOLEAN, SIGC_BYTE, SIGC_CHAR, SIGC_CLASS, SIGC_DOUBLE, SIGC_ENDCLASS, SIGC_ENDMETHOD, SIGC_FLOAT, SIGC_INT, SIGC_LONG, SIGC_METHOD, SIGC_PACKAGE, SIGC_SHORT, SIGC_VOID, T_BOOLEAN, T_BYTE, T_CHAR, T_CLASS, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT

Constructor Summary

Constructors

Constructor	Description
Assembler()

Method Summary

Modifier and Type	Method	Description
void	add(boolean flagNoCovered, long where, int opc, java.lang.Object obj)
void	add(long where, int opc)
void	add(long where, int opc, boolean flagNoCovered)
void	add(long where, int opc, java.lang.Object obj)
void	add(long where, int opc, java.lang.Object obj, boolean flagCondInverted)
void	add(Instruction inst)	Add an instruction
void	addNativeToJcovTab(Environment env, ClassDefinition c)
(package private) void	balance(Label lbl, int depth)	Determine stack size, count local variables
void	collect(Environment env, MemberDefinition field, ConstantPool tab)	Collect all constants into the constant table
private java.lang.String	createClassJcovElement(Environment env, ClassDefinition c)
(package private) boolean	eliminate()	Eliminate instructions that are not reached
boolean	empty()	Return true if empty
(package private) void	flowFields(Environment env, Label lbl, MemberDefinition[] locals)	Figure out when registers contain a legal value.
void	GenJCov(Environment env)
void	GenVecJCov(Environment env, ClassDefinition c, long Time)
void	listing(java.io.PrintStream out)	Print the byte codes
void	optimize(Environment env)	Optimize the byte codes
(package private) void	optimize(Environment env, Label lbl)	Optimize instructions and mark those that can be reached
void	write(Environment env, java.io.DataOutputStream out, MemberDefinition field, ConstantPool tab)	Generate code
void	writeCoverageTable(Environment env, ClassDefinition c, java.io.DataOutputStream out, ConstantPool tab, long whereField)	Write the coverage table
(package private) void	writeExceptions(Environment env, java.io.DataOutputStream out, ConstantPool tab, Instruction first, Instruction last)	Write the exceptions table
void	writeLineNumberTable(Environment env, java.io.DataOutputStream out, ConstantPool tab)	Write the linenumber table
void	writeLocalVariableTable(Environment env, MemberDefinition field, java.io.DataOutputStream out, ConstantPool tab)	Write the local variable table.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NOTREACHED

static final int NOTREACHED

See Also:

Constant Field Values

REACHED

static final int REACHED

See Also:

Constant Field Values

NEEDED

static final int NEEDED

See Also:

Constant Field Values

first

Label first

last

Instruction last

maxdepth

int maxdepth

maxvar

int maxvar

maxpc

int maxpc

SourceClassList

static java.util.Vector<java.lang.String> SourceClassList

TmpCovTable

static java.util.Vector<java.lang.String> TmpCovTable

JcovClassCountArray

static int[] JcovClassCountArray

JcovMagicLine

static java.lang.String JcovMagicLine

JcovClassLine

static java.lang.String JcovClassLine

JcovSrcfileLine

static java.lang.String JcovSrcfileLine

JcovTimestampLine

static java.lang.String JcovTimestampLine

JcovDataLine

static java.lang.String JcovDataLine

JcovHeadingLine

static java.lang.String JcovHeadingLine

arrayModifiers

static int[] arrayModifiers

arrayModifiersOpc

static int[] arrayModifiersOpc

Constructor Detail

Assembler

public Assembler()

Method Detail

add

public void add(Instruction inst)

Add an instruction

add

public void add(long where,
                int opc)

add

public void add(long where,
                int opc,
                java.lang.Object obj)

add

public void add(long where,
                int opc,
                java.lang.Object obj,
                boolean flagCondInverted)

add

public void add(boolean flagNoCovered,
                long where,
                int opc,
                java.lang.Object obj)

add

public void add(long where,
                int opc,
                boolean flagNoCovered)

optimize

void optimize(Environment env,
              Label lbl)

Optimize instructions and mark those that can be reached

eliminate

boolean eliminate()

Eliminate instructions that are not reached

optimize

public void optimize(Environment env)

Optimize the byte codes

collect

public void collect(Environment env,
                    MemberDefinition field,
                    ConstantPool tab)

Collect all constants into the constant table

balance

void balance(Label lbl,
             int depth)

Determine stack size, count local variables

write

public void write(Environment env,
                  java.io.DataOutputStream out,
                  MemberDefinition field,
                  ConstantPool tab)
           throws java.io.IOException

Generate code

Throws:

java.io.IOException

writeExceptions

void writeExceptions(Environment env,
                     java.io.DataOutputStream out,
                     ConstantPool tab,
                     Instruction first,
                     Instruction last)
              throws java.io.IOException

Write the exceptions table

Throws:

java.io.IOException

writeCoverageTable

public void writeCoverageTable(Environment env,
                               ClassDefinition c,
                               java.io.DataOutputStream out,
                               ConstantPool tab,
                               long whereField)
                        throws java.io.IOException

Write the coverage table

Throws:

java.io.IOException

addNativeToJcovTab

public void addNativeToJcovTab(Environment env,
                               ClassDefinition c)

createClassJcovElement

private java.lang.String createClassJcovElement(Environment env,
                                                ClassDefinition c)

GenVecJCov

public void GenVecJCov(Environment env,
                       ClassDefinition c,
                       long Time)

GenJCov

public void GenJCov(Environment env)

writeLineNumberTable

public void writeLineNumberTable(Environment env,
                                 java.io.DataOutputStream out,
                                 ConstantPool tab)
                          throws java.io.IOException

Write the linenumber table

Throws:

java.io.IOException

flowFields

void flowFields(Environment env,
                Label lbl,
                MemberDefinition[] locals)

Figure out when registers contain a legal value. This is done using a simple data flow algorithm. This information is later used to generate the local variable table.

writeLocalVariableTable

public void writeLocalVariableTable(Environment env,
                                    MemberDefinition field,
                                    java.io.DataOutputStream out,
                                    ConstantPool tab)
                             throws java.io.IOException

Write the local variable table. The necessary constants have already been added to the constant table by the collect() method. The flowFields method is used to determine which variables are alive at each pc.

Throws:

java.io.IOException

empty

public boolean empty()

Return true if empty

listing

public void listing(java.io.PrintStream out)

Print the byte codes