Package org.glassfish.rmic.tools.tree
Class AddExpression
- java.lang.Object
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- All Implemented Interfaces:
java.lang.Cloneable
,Constants
,RuntimeConstants
public class AddExpression extends BinaryArithmeticExpression
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.
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Field Summary
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Fields inherited from class org.glassfish.rmic.tools.tree.BinaryExpression
left
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Fields inherited from class org.glassfish.rmic.tools.tree.UnaryExpression
right
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Fields inherited from class org.glassfish.rmic.tools.tree.Expression
type
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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
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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
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Constructor Summary
Constructors Constructor Description AddExpression(long where, Expression left, Expression right)
constructor
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description (package private) void
codeAppend(Environment env, Context ctx, Assembler asm, ClassDeclaration sbClass, boolean needBuffer)
Convert this expression to a string and append it to the string buffer on the top of the stack.(package private) void
codeOperation(Environment env, Context ctx, Assembler asm)
Codevoid
codeValue(Environment env, Context ctx, Assembler asm)
int
costInline(int thresh, Environment env, Context ctx)
The cost of inlining this expression(package private) Expression
eval(double a, double b)
(package private) Expression
eval(float a, float b)
(package private) Expression
eval(int a, int b)
Evaluate(package private) Expression
eval(long a, long b)
(package private) Expression
eval(java.lang.String a, java.lang.String b)
Expression
inlineValue(Environment env, Context ctx)
Inline the value of an AddExpression.protected java.lang.StringBuffer
inlineValueSB(Environment env, Context ctx, java.lang.StringBuffer buffer)
Attempt to evaluate this expression.boolean
isNonNull()
Check if the expression cannot be a null reference.(package private) void
selectType(Environment env, Context ctx, int tm)
Select the type(package private) Expression
simplify()
Simplify-
Methods inherited from class org.glassfish.rmic.tools.tree.BinaryExpression
checkValue, copyInline, eval, eval, inline, isConstant, order, print
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Methods inherited from class org.glassfish.rmic.tools.tree.UnaryExpression
eval, eval, eval, eval, eval, eval
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Methods inherited from class org.glassfish.rmic.tools.tree.Expression
check, checkAmbigName, checkAssignOp, checkCondition, checkCondition, checkInitializer, checkLHS, code, codeBranch, codeConversion, codeDup, codeLoad, codeLValue, codeStore, ensureString, equals, equals, equals, equals, equalsDefault, firstConstructor, fitsType, fitsType, getAssigner, getImplementation, getType, getUpdater, getValue, inlineLHS, isNull, precedence, toType
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Constructor Detail
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AddExpression
public AddExpression(long where, Expression left, Expression right)
constructor
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Method Detail
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selectType
void selectType(Environment env, Context ctx, int tm)
Select the type- Overrides:
selectType
in classBinaryArithmeticExpression
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isNonNull
public boolean isNonNull()
Description copied from class:Expression
Check if the expression cannot be a null reference.- Overrides:
isNonNull
in classExpression
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eval
Expression eval(int a, int b)
Evaluate- Overrides:
eval
in classBinaryExpression
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eval
Expression eval(long a, long b)
- Overrides:
eval
in classBinaryExpression
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eval
Expression eval(float a, float b)
- Overrides:
eval
in classBinaryExpression
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eval
Expression eval(double a, double b)
- Overrides:
eval
in classBinaryExpression
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eval
Expression eval(java.lang.String a, java.lang.String b)
- Overrides:
eval
in classBinaryExpression
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inlineValue
public Expression inlineValue(Environment env, Context ctx)
Inline the value of an AddExpression. If this AddExpression represents a concatenation of compile-time constant strings, dispatch to the special method inlineValueSB, which handles the inlining more efficiently.- Overrides:
inlineValue
in classBinaryExpression
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inlineValueSB
protected java.lang.StringBuffer inlineValueSB(Environment env, Context ctx, java.lang.StringBuffer buffer)
Attempt to evaluate this expression. If this expression yields a value, append it to the StringBuffer `buffer'. If this expression cannot be evaluated at this time (for example if it contains a division by zero, a non-constant subexpression, or a subexpression which "refuses" to evaluate) then return `null' to indicate failure. It is anticipated that this method will be called to evaluate concatenations of compile-time constant strings. The call originates from AddExpression#inlineValue(). This method does not use associativity to good effect in folding string concatenations. This is room for improvement. ------------- A bit of history: this method was added because an expression like... "a" + "b" + "c" + "d" ...was evaluated at compile-time as... (new StringBuffer((new StringBuffer("a")).append("b").toString())). append((new StringBuffer("c")).append("d").toString()).toString() Alex Garthwaite, in profiling the memory allocation of the compiler, noticed this and suggested that the method inlineValueSB() be added to evaluate constant string concatenations in a more efficient manner. The compiler now builds the string in a top-down fashion, by accumulating the result in a StringBuffer which is allocated once and passed in as a parameter. The new evaluation scheme is equivalent to... (new StringBuffer("a")).append("b").append("c").append("d") .toString() ...which is more efficient. Since then, the code has been modified to fix certain problems. Now, for example, it can return `null' when it encounters a concatenation which it is not able to evaluate. See also Expression#inlineValueSB() and ExprExpression#inlineValueSB().- Overrides:
inlineValueSB
in classExpression
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simplify
Expression simplify()
Simplify- Overrides:
simplify
in classExpression
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costInline
public int costInline(int thresh, Environment env, Context ctx)
The cost of inlining this expression- Overrides:
costInline
in classBinaryExpression
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codeOperation
void codeOperation(Environment env, Context ctx, Assembler asm)
Code- Overrides:
codeOperation
in classBinaryExpression
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codeAppend
void codeAppend(Environment env, Context ctx, Assembler asm, ClassDeclaration sbClass, boolean needBuffer) throws ClassNotFound, AmbiguousMember
Convert this expression to a string and append it to the string buffer on the top of the stack. If the needBuffer argument is true, the string buffer needs to be created, initialized, and pushed on the stack, first.- Overrides:
codeAppend
in classExpression
- Throws:
ClassNotFound
AmbiguousMember
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codeValue
public void codeValue(Environment env, Context ctx, Assembler asm)
- Overrides:
codeValue
in classBinaryExpression
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