org.multijava.mjc
Class JSwitchStatement

java.lang.Object
  org.multijava.util.Utils
      org.multijava.util.compiler.Phylum
          org.multijava.mjc.JPhylum
              org.multijava.mjc.JStatement
                  org.multijava.mjc.JSwitchStatement

All Implemented Interfaces:

Cloneable, Constants, Constants, PhylumType

public class JSwitchStatement

extends JStatement

This class represents a switch statement in the AST. JLS 14.9: Switch Statement

Field Summary
private  CFlowControlContextType	breakContext           Stores the definite assignment information for control flow paths that reach the end of the switch via a break statement.
private  CodeLabel	endLabel
private  JExpression	expr
private  JSwitchGroup[]	groups
private  boolean	hasBreak

 

Fields inherited from class org.multijava.mjc.JStatement

 

Fields inherited from class org.multijava.mjc.JPhylum

EMPTY

 

Fields inherited from class org.multijava.util.compiler.Phylum

 

Fields inherited from class org.multijava.util.Utils

DBG_LEVEL_HIGH, DBG_LEVEL_LOW, DBG_LEVEL_NO

 

Fields inherited from interface org.multijava.mjc.Constants

ACC_MODIFIER_FLAGS_MASK, ACC_NON_NULL, ACC_NON_NULL_BY_DEFAULT, ACC_NULLABLE, ACC_NULLABLE_BY_DEFAULT, ACC_PURE, ACCESS_FLAG_ARRAY, ACCESS_FLAG_NAMES, AMID_JAVA_MATH, AMID_MAX, AMID_SAFE_MATH, CMP_VERSION, IMPLICITLY_NON_NULL, JAV_ASSERTION_ERROR, JAV_CLASS, JAV_CLASSLOADER, JAV_CLASSNOTFOUND_EXCEPTION, JAV_CLONE, JAV_CLONEABLE, JAV_CONSTRUCTOR, JAV_ERROR, JAV_EXCEPTION, JAV_INIT, JAV_LENGTH, JAV_NAME_SEPARATOR, JAV_NOCLASSDEFFOUND_ERROR, JAV_OBJECT, JAV_OUTER_THIS, JAV_RMJ_RUNTIME_EXCEPTION, JAV_RUNTIME, JAV_RUNTIME_EXCEPTION, JAV_SERIALIZABLE, JAV_STATIC_INIT, JAV_STRING, JAV_STRINGBUFFER, JAV_SUPER, JAV_THIS, JAV_THROWABLE, MJ_ANCHOR, NULLITY_MODS, OPE_BAND, OPE_BNOT, OPE_BOR, OPE_BSR, OPE_BXOR, OPE_EQ, OPE_GE, OPE_GT, OPE_LAND, OPE_LE, OPE_LNOT, OPE_LOR, OPE_LT, OPE_MINUS, OPE_NE, OPE_PERCENT, OPE_PLUS, OPE_POSTDEC, OPE_POSTINC, OPE_PREDEC, OPE_PREINC, OPE_SIMPLE, OPE_SL, OPE_SLASH, OPE_SR, OPE_STAR, TID_ARRAY, TID_BOOLEAN, TID_BYTE, TID_CHAR, TID_CLASS, TID_DOUBLE, TID_FLOAT, TID_INT, TID_LONG, TID_MAX, TID_SHORT, TID_VOID, UNIV_ARRAY_TMP, UNIV_TMP

 

Fields inherited from interface org.multijava.util.classfile.Constants

ACC_ABSTRACT, ACC_FINAL, ACC_INTERFACE, ACC_NATIVE, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_VOLATILE, ATT_ANCHOR, ATT_BRIDGE, ATT_CODE, ATT_CONSTANTVALUE, ATT_DEPRECATED, ATT_DISPATCHER, ATT_EXCEPTIONS, ATT_GENERIC, ATT_GENERIC_FUNCTIONS, ATT_INNERCLASSES, ATT_LINENUMBERTABLE, ATT_LOCALVARIABLETABLE, ATT_MM_BODY, ATT_REDIRECTOR, ATT_RMJ_GLUE, ATT_RMJ_SIGNATURE, ATT_RUNTIME_VISIBLE_ANNOTATIONS, ATT_RUNTIME_VISIBLE_PARAMETER_ANNOTATIONS, ATT_SIGNATURE, ATT_SOURCEFILE, ATT_SYNTHETIC, ATT_UNIVERSE_FIELD, ATT_UNIVERSE_METHOD, ATT_UNIVERSE_VERSION, CST_CLASS, CST_DOUBLE, CST_FIELD, CST_FLOAT, CST_INTEGER, CST_INTERFACEMETHOD, CST_LONG, CST_METHOD, CST_NAMEANDTYPE, CST_STRING, CST_UTF8, ENV_DEBUG_MODE, ENV_USE_CACHE, JAVA_MAGIC, JAVA_MAJOR, JAVA_MINOR, MAX_CODE_PER_METHOD, 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_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_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_dup2, opc_dup2_x1, opc_dup2_x2, opc_dup_x1, opc_dup_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_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_ladd, opc_laload, opc_land, opc_lastore, opc_lcmp, opc_lconst_0, opc_lconst_1, opc_ldc, opc_ldc2_w, opc_ldc_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_wide, opc_xxxunusedxxx, POO_ASCII_CONSTANT, POO_CLASS_CONSTANT, POO_DOUBLE_CONSTANT, POO_FLOAT_CONSTANT, POO_INTEGER_CONSTANT, POO_LONG_CONSTANT, POO_NAT_CONSTANT, POO_REF_CONSTANT, POO_STRING_CONSTANT, TYP_ADDRESS, TYP_DOUBLE, TYP_FLOAT, TYP_INT, TYP_LONG, TYP_REFERENCE, TYP_VOID

 

Constructor Summary

JSwitchStatement(TokenReference where, JExpression expr, JSwitchGroup[] groups, JavaStyleComment[] comments)           Construct a node in the parsing tree.

 

Method Summary
void	accept(MjcVisitor p)           Accepts the specified visitor
boolean	acceptsBreak()           Returns true iff this statement is a possible target for a break statement.
boolean	acceptsContinue()           Returns true iff this statement is a possible target for a continue statement.
void	addBreak(CFlowControlContextType context)           Registers that this statement is the target of a break statement.
JExpression	expr()
void	genCode(CodeSequence code)           Generates a sequence of bytecodes
CodeLabel	getBreakLabel()           Return the end of this block (for break statement)
CodeLabel	getContinueLabel()           Return the beginning of this block (for continue statement)
JSwitchGroup[]	groups()
void	typecheck(CFlowControlContextType context)           Typechecks this statement in the context in which it appears.

 

Methods inherited from class org.multijava.mjc.JStatement

addContinue, fail, getComments

 

Methods inherited from class org.multijava.mjc.JPhylum

check, check, check, check, fail, fail, warn, warn, warn, warn

 

Methods inherited from class org.multijava.util.compiler.Phylum

getTokenReference, setTokenReference

 

Methods inherited from class org.multijava.util.Utils

assertTrue, assertTrue, combineArrays, escapeString, escapeString, fail, fail, getFilePath, hasFlag, hasOtherFlags, parsePathParts, relativePathTo, splitQualifiedName, splitQualifiedName, stripJavaModifiers, stripNonJavaModifiers, stripPrivateModifier, unescapeString, vectorToArray, vectorToIntArray

 

Methods inherited from class java.lang.Object

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

 

Field Detail

expr

private JExpression expr

groups

private JSwitchGroup[] groups

hasBreak

private boolean hasBreak

endLabel

private CodeLabel endLabel

breakContext

private CFlowControlContextType breakContext

Stores the definite assignment information for control flow paths that reach the end of the switch via a break statement.

JSwitchStatement

public JSwitchStatement(TokenReference where,
                        JExpression expr,
                        JSwitchGroup[] groups,
                        JavaStyleComment[] comments)

Construct a node in the parsing tree.

Parameters:

where - the line of this node in the source code

expr - the expr part

groups - the cases of the switch

comments - the comments associated with this statement

typecheck

public void typecheck(CFlowControlContextType context)
               throws PositionedError

Typechecks this statement in the context in which it appears. Mutates the context to record the information learned during checking.

Parameters:

context - the context in which this appears

Throws:

PositionedError - if any checks fail

acceptsBreak

public boolean acceptsBreak()

Returns true iff this statement is a possible target for a break statement.

Overrides:

acceptsBreak in class JStatement

acceptsContinue

public boolean acceptsContinue()

Returns true iff this statement is a possible target for a continue statement.

Overrides:

acceptsContinue in class JStatement

addBreak

public void addBreak(CFlowControlContextType context)

Registers that this statement is the target of a break statement.

Overrides:

addBreak in class JStatement

getBreakLabel

public CodeLabel getBreakLabel()

Return the end of this block (for break statement)

Overrides:

getBreakLabel in class JStatement

getContinueLabel

public CodeLabel getContinueLabel()

Return the beginning of this block (for continue statement)

Overrides:

getContinueLabel in class JStatement

accept

public void accept(MjcVisitor p)

Accepts the specified visitor

Overrides:

accept in class JStatement

Parameters:

p - the visitor

genCode

public void genCode(CodeSequence code)

Generates a sequence of bytecodes

Parameters:

code - the code list

expr

public JExpression expr()

groups

public JSwitchGroup[] groups()