oracle.javatools.parser.java.v2.util
Class Conversions

java.lang.Object
  oracle.javatools.parser.util.ArrayListHeap
      oracle.javatools.parser.java.v2.util.Conversions

All Implemented Interfaces:

JavaConstants, JavaErrors, JavaOperators, JavaPreferences, JavaTokens

Direct Known Subclasses:

CommonUtilities

public class Conversions
extends ArrayListHeap
implements JavaConstants

Various utilities that perform conversions from a subject to a target. Does not generate byte code.

Nested Class Summary

static class

Conversions.ConversionType Distinguish between various kinds of conversions

Nested classes/interfaces inherited from interface oracle.javatools.parser.java.v2.JavaPreferences

JavaPreferences.MemberOrder

Field Summary

Fields inherited from interface oracle.javatools.parser.java.v2.JavaConstants

ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_NATIVE, ACC_none, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STRICTFP, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_VARARGS, ACC_VOLATILE, ACCX_DEPRECATED, ACCX_HIDDEN, ARRAY_implements, BOUND_EXTENDS, BOUND_NARROW, BOUND_NONE, BOUND_SUPER, ELEM_ANNOTATION, ELEM_base, ELEM_CLASS, ELEM_COMPONENT, ELEM_EXPRESSION, ELEM_FIELD, ELEM_FILE, ELEM_IMPORT, ELEM_invalid, ELEM_LOCAL_VARIABLE, ELEM_max, ELEM_METHOD, ELEM_NOTHING, ELEM_PACKAGE, ELEM_SELF_VARIABLE, ELEM_STATEMENT_LABEL, ELEM_TMP_VARIABLE, ELEM_TYPE_VARIABLE, ELEM_WILDCARD_TYPE, ELEM_words, EMPTY_OBJECT_ARRAY, EMPTY_STRING_ARRAY, FOR_ENHANCED, FOR_EXPRESSION, FOR_VARIABLE_D, kEmptyCollection, opt2srcTable, PACKAGE_INFO, PRIMITIVE_autoboxes, PRIMITIVE_binary, PRIMITIVE_BOOLEAN, PRIMITIVE_BYTE, PRIMITIVE_CHAR, PRIMITIVE_descriptors, PRIMITIVE_DOUBLE, PRIMITIVE_FLOAT, PRIMITIVE_INT, PRIMITIVE_invalid, PRIMITIVE_LONG, PRIMITIVE_max, PRIMITIVE_NULL, PRIMITIVE_SHORT, PRIMITIVE_tokens, PRIMITIVE_unary, PRIMITIVE_VOID, SRC_ANNOTATION, SRC_base, SRC_BLOCK, SRC_CATCH_PARAMETER, SRC_CLASS, SRC_CLASS_BODY, SRC_CLASS_INITIALIZER, SRC_CONSTRUCTOR_D, SRC_DOC_base, SRC_DOC_BLOCK_TAG, SRC_DOC_COMMENT, SRC_DOC_DESCRIPTION, SRC_DOC_INLINE_TAG, SRC_DOC_max, SRC_DOC_REFERENCE, SRC_DOC_TAG_NAME, SRC_DOC_TEXT, SRC_ENUM_CONSTANT_D, SRC_ERROR, SRC_EXPR_ANNOTATION, SRC_EXPR_ARRAY_ACCESS, SRC_EXPR_ASSIGNMENT, SRC_EXPR_base, SRC_EXPR_DOT, SRC_EXPR_INFIX, SRC_EXPR_LIST, SRC_EXPR_LITERAL, SRC_EXPR_max, SRC_EXPR_METHOD_CALL, SRC_EXPR_NEW_ARRAY, SRC_EXPR_NEW_CLASS, SRC_EXPR_QUESTION, SRC_EXPR_SIMPLE_NAME, SRC_EXPR_TYPE, SRC_EXPR_TYPECAST, SRC_EXPR_UNARY, SRC_EXPR_WRAPPER, SRC_FIELD_D, SRC_FIELD_VARIABLE, SRC_FILE, SRC_FORMAL_PARAMETER, SRC_FORMAL_PARAMETER_LIST, SRC_IMPORT_D, SRC_INTERFACES_CLAUSE, SRC_invalid, SRC_LABEL, SRC_LEX_base, SRC_LEX_BLANKLINE, SRC_LEX_COMMENT, SRC_LEX_max, SRC_LEX_SQLJ, SRC_LOCAL_VARIABLE, SRC_LOCAL_VARIABLE_D, SRC_max, SRC_METHOD_D, SRC_NAME, SRC_PACKAGE_D, SRC_STMT_ASSERT, SRC_STMT_base, SRC_STMT_BLOCK, SRC_STMT_BREAK, SRC_STMT_CATCH, SRC_STMT_CONTINUE, SRC_STMT_DO, SRC_STMT_ELSE, SRC_STMT_EMPTY, SRC_STMT_EXPRESSION, SRC_STMT_FINALLY, SRC_STMT_FOR, SRC_STMT_IF, SRC_STMT_max, SRC_STMT_RETURN, SRC_STMT_SWITCH, SRC_STMT_SYNCH, SRC_STMT_THROW, SRC_STMT_TRY, SRC_STMT_WHILE, SRC_SUPERCLASS_CLAUSE, SRC_SWITCH_LABEL, SRC_THROWS_CLAUSE, SRC_TYPE_ARGUMENT, SRC_TYPE_PARAMETER, SRC_TYPE_REF, SRC_words, TY_ANNOTATE, TY_CLASS, TY_ENUM, TY_INTERFACE, TY_invalid, TY_max, TY_words

Fields inherited from interface oracle.javatools.parser.java.v2.JavaErrors

ERROR_ABSTRACT_CLASS, ERROR_AMBIGUOUS_IMPORT, ERROR_AMBIGUOUS_REF, ERROR_ASSERT_IDENTIFIER, ERROR_base, ERROR_BREAK_OUTSIDE_SWITCH_OR_LOOP, ERROR_CANCELLED, ERROR_CANT_ASSIGN, ERROR_CANT_EXTEND_ENUM, ERROR_CANT_EXTEND_FINAL, ERROR_CANT_EXTEND_INTERFACE, ERROR_CANT_IMPLEMENT_CLASS, ERROR_CANT_TYPECAST, ERROR_CATEGORY_ALL, ERROR_CATEGORY_COMPILE, ERROR_CATEGORY_PARSE, ERROR_CATEGORY_SCAN, ERROR_CATEGORY_unclassified, ERROR_CHECK_EXCEPTION, ERROR_CLASS_CIRCULARITY, ERROR_COMPILE_base, ERROR_COMPILE_GENERIC, ERROR_COMPILE_max, ERROR_CONSTRUCTOR_NAME, ERROR_CONTINUE_OUTSIDE_OF_LOOP, ERROR_DUPLICATE, ERROR_EMPTY_CHAR_LITERAL, ERROR_EMPTY_EXPRESSION, ERROR_EXPECTING_ONE, ERROR_EXPECTING_TWO, ERROR_EXPECTING_TYPE, ERROR_EXTENDS_NOT_ALLOWED, ERROR_EXTENDS_TOO_MANY, ERROR_FORWARD_REFERENCE, ERROR_ILLEGAL_ANNOTATION, ERROR_ILLEGAL_DEFAULT, ERROR_ILLEGAL_LABEL, ERROR_ILLEGAL_START_OF_EXPR, ERROR_ILLEGAL_TYPE_PARAMETERS, ERROR_ILLEGAL_VARARGS, ERROR_IMPLEMENTS_NOT_ALLOWED, ERROR_IMPORT_NOT_FOUND, ERROR_INTERNAL, ERROR_INVALID_CHAR_LITERAL, ERROR_INVALID_ESCAPE_SEQUENCE, ERROR_INVALID_EXPR_STMT, ERROR_INVALID_NAME, ERROR_INVALID_OPERATION, ERROR_INVALID_STRING_LITERAL, ERROR_INVALID_SUPERTYPE, ERROR_keys, ERROR_LONE_CATCH, ERROR_LONE_ELSE, ERROR_LONE_FINALLY, ERROR_LONE_TRY, ERROR_max, ERROR_MEMBER_NOT_FOUND, ERROR_METHOD_NOT_FOUND, ERROR_MISSING_CASE_OR_DEFAULT_LABEL, ERROR_MISSING_CONDITION, ERROR_MISSING_METHOD_BODY, ERROR_MODIFIER_REPEATED, ERROR_MULTIPLE_COMPONENTS, ERROR_NAME_NOT_FOUND, ERROR_none, ERROR_NOT_ACCESSIBLE, ERROR_NOT_ANNOTATION_TYPE, ERROR_NOT_ASSIGNABLE, ERROR_NOT_GENERIC_TYPE, ERROR_NOT_IMPLEMENTED_YET, ERROR_NOT_THROWABLE, ERROR_NUMBER_FORMAT, ERROR_NUMERIC_OVERFLOW, ERROR_NUMERIC_UNDERFLOW, ERROR_ONLY_STATIC_ACCESS, ERROR_PARSE_base, ERROR_PARSE_GENERIC, ERROR_PARSE_max, ERROR_REQUIRE_ARRAY, ERROR_REQUIRE_BLOCK, ERROR_REQUIRE_FINAL, ERROR_REQUIRE_OBJECT, ERROR_REQUIRE_OUTER_CLASS, ERROR_SCAN_base, ERROR_SCAN_GENERIC, ERROR_SCAN_max, ERROR_TYPE_ARGUMENT_MISMATCH, ERROR_TYPE_IS_NOT_AUTOCLOSEABLE, ERROR_TYPE_IS_NOT_DISJUNCTIVE, ERROR_TYPE_NOT_ALLOWED, ERROR_TYPE_NOT_FOUND, ERROR_UNEXPECTED, ERROR_UNKNOWN, ERROR_VOID_RETURN, ERROR_warnings, ERROR_words, SEVERITY_ERROR, SEVERITY_FATAL, SEVERITY_LINT, SEVERITY_WARNING, SEVERITY_ZERO, WARNING_AMBIGUOUS_DOC_REFERENCE, WARNING_ASSERT_IDENTIFIER, WARNING_DOC_REFERENCE_NOT_FOUND, WARNING_IMPORT_UNUSED, WARNING_INVALID_NAME, WARNING_METHOD_NAME

Fields inherited from interface oracle.javatools.parser.java.v2.JavaOperators

OPT_ADD, OPT_ADDASG, OPT_AND, OPT_ANNOTATION, OPT_ARRAYCONST, OPT_ASG, OPT_base, OPT_BITAND, OPT_BITANDASG, OPT_BITNOT, OPT_BITOR, OPT_BITORASG, OPT_BITXOR, OPT_BITXORASG, OPT_CLASS_LITERAL, OPT_COND, OPT_DEREF, OPT_DIV, OPT_DIVASG, OPT_DOT, OPT_EQ, OPT_GE, OPT_GT, OPT_INSTANCEOF, OPT_invalid, OPT_INVOKE, OPT_LE, OPT_LIST, OPT_LITERAL, OPT_LSH, OPT_LSHASG, OPT_LT, OPT_max, OPT_MINUS, OPT_MINUSASG, OPT_MOD, OPT_MODASG, OPT_MUL, OPT_MULASG, OPT_NEGATIVE, OPT_NESTEXP, OPT_NEWARRAY, OPT_NEWOBJECT, OPT_NOT, OPT_NOTEQ, OPT_OR, OPT_POSITIVE, OPT_POSTDEC, OPT_POSTINC, OPT_precedence, OPT_PREDEC, OPT_PREINC, OPT_QUALIFIED_SUPER, OPT_QUALIFIED_THIS, OPT_RSH, OPT_RSHASG, OPT_SIMPLE_NAME, OPT_tokens, OPT_TYPE, OPT_TYPECAST, OPT_URSH, OPT_URSHASG, OPT_words

Fields inherited from interface oracle.javatools.parser.java.v2.JavaTokens

DW_values, DW_words, J2SE_13, J2SE_14, J2SE_15, J2SE_16, J2SE_17, J2SE_MAX, J2SE_MIN, KW_ABSTRACT, KW_ASSERT, KW_base, KW_BOOLEAN, KW_BREAK, KW_BYTE, KW_CASE, KW_CATCH, KW_CHAR, KW_CLASS, KW_CONST, KW_CONTINUE, KW_DEFAULT, KW_DO, KW_DOUBLE, KW_ELSE, KW_ENUM, KW_EXTENDS, KW_FINAL, KW_FINALLY, KW_FLOAT, KW_FOR, KW_GOTO, KW_IF, KW_IMPLEMENTS, KW_IMPORT, KW_INSTANCEOF, KW_INT, KW_INTERFACE, KW_j2se13_max, KW_j2se14_max, KW_j2se15_max, KW_j2se16_max, KW_LONG, KW_max, KW_NATIVE, KW_NEW, KW_PACKAGE, KW_PRIVATE, KW_PROTECTED, KW_PUBLIC, KW_RETURN, KW_SHORT, KW_STATIC, KW_STRICTFP, KW_SUPER, KW_SWITCH, KW_SYNCHRONIZED, KW_THIS, KW_THROW, KW_THROWS, KW_TRANSIENT, KW_TRY, KW_VOID, KW_VOLATILE, KW_WHILE, KW_words, OP_AND_ASG, OP_ASG, OP_AT, OP_base, OP_BINAND, OP_binary, OP_BINNOT, OP_BINOR, OP_BINXOR, OP_COLON, OP_COMMA, OP_DEC, OP_DIV, OP_DIV_ASG, OP_DOT, OP_ELLIPSIS, OP_EQ, OP_GE, OP_GT, OP_HASH, OP_INC, OP_LBRACE, OP_LBRACKET, OP_LE, OP_LOGAND, OP_LOGNOT, OP_LOGOR, OP_LPAREN, OP_LSH, OP_LSH_ASG, OP_LT, OP_max, OP_MINUS, OP_MINUS_ASG, OP_MOD, OP_MOD_ASG, OP_MUL, OP_MUL_ASG, OP_NE, OP_OR_ASG, OP_PLUS, OP_PLUS_ASG, OP_prefix, OP_QUES, OP_RBRACE, OP_RBRACKET, OP_RPAREN, OP_RSH, OP_RSH_ASG, OP_SEMI, OP_URSH, OP_URSH_ASG, OP_words, OP_XOR_ASG, TK_BOOLEAN_LITERAL, TK_CHAR_LITERAL, TK_DOC_COMMENT, TK_DOUBLE_LITERAL, TK_EOF, TK_FLOAT_LITERAL, TK_IDENTIFIER, TK_INT_LITERAL, TK_LITERAL_base, TK_LITERAL_max, TK_LONG_LITERAL, TK_max, TK_MULTI_COMMENT, TK_NULL_LITERAL, TK_SINGLE_COMMENT, TK_SQLJ, TK_STRING_LITERAL, TK_WHITESPACE

Fields inherited from interface oracle.javatools.parser.java.v2.JavaPreferences

BLANKLINES_AFTER_LAST_MEMBER, BLANKLINES_BEFORE_DOC_COMMENT, BLANKLINES_BEFORE_FIELD, BLANKLINES_BEFORE_FIRST_CLASS, BLANKLINES_BEFORE_FIRST_MEMBER, BLANKLINES_BEFORE_MEMBER_CLASS, BLANKLINES_BEFORE_METHOD, BLANKLINES_EMPTY_ANONYMOUS, BLANKLINES_EMPTY_BLOCK, BLANKLINES_EMPTY_CLASS, BLANKLINES_EMPTY_METHOD, BLANKLINES_IMPORTS_AFTER, BLANKLINES_PACKAGE_AFTER, BLANKLINES_PRESERVE_COUNT, CLONE_QUALIFIES_TYPES, FALSE, IGNORED_I, IGNORED_Z, IMPORT_GROUP_IMPORTS, IMPORT_GROUP_PACKAGE_DEPTH, IMPORT_INNER_CLASS_NAME, IMPORT_NARROW_MEMBERS_THRESHOLD, IMPORT_NARROW_THRESHOLD, INDENT_BLOCK_CHILDREN, INDENT_CLASS_MEMBERS, INDENT_CONTROL_BLOCKS, INDENT_NUM_SPACES, INDENT_REPLACE_WITH_TABS, INDENT_SWITCH_CASES, INDENT_TAB_SIZE, INTEGER_ALWAYS_WRAP, INTEGER_NEVER_WRAP, INTEGER_WRAP_IF_LONG, MEMBER_ORDER, NEWLINE_AFTER_SWITCH_CASE, NEWLINE_ARRAY_BRACES, NEWLINE_BLOCK_BRACES, NEWLINE_CATCH, NEWLINE_CLASS_BRACES, NEWLINE_ELSE, NEWLINE_EXTENDS, NEWLINE_FINALLY, NEWLINE_IMPLEMENTS, NEWLINE_METHOD_BRACES, NEWLINE_THROWS, NEWLINE_WHILE, ONE, PREFERENCES_base, PREFERENCES_defaults, PREFERENCES_keys, PREFERENCES_max, PREFERENCES_sun, SPACE_ARGUMENTS_BEFORE, SPACE_ASSIGN_AROUND, SPACE_BINARYOP_AROUND, SPACE_BRACES_AROUND, SPACE_BRACKETS_WITHIN, SPACE_COLON_AFTER, SPACE_COLON_BEFORE, SPACE_COMMA_AFTER, SPACE_COMMA_BEFORE, SPACE_KEYWORD_AFTER, SPACE_OPENBRACE_BEFORE, SPACE_PARAMETERS_BEFORE, SPACE_PARENS_WITHIN, SPACE_QUESTION_AFTER, SPACE_QUESTION_BEFORE, SPACE_SEMICOLON_AFTER, SPACE_SEMICOLON_BEFORE, SPACE_TYPECAST_AFTER, TRI_ALWAYS_WRAP, TRI_NEVER_WRAP, TRI_WRAP_IF_LONG, TRUE, TWO, UNKNOWN_I, UNKNOWN_Z, WRAP_ALIGN, WRAP_ARRAY_CONSTANT, WRAP_BINARY_OPERATOR, WRAP_DOT_CHAIN, WRAP_EXTENDS, WRAP_FOR_STATEMENT, WRAP_INVOKE_ARGUMENTS, WRAP_LINE_WIDTH, WRAP_MODIFIERS, WRAP_PARAMETER_LIST, WRAP_QUES_OPERATOR, WRAP_THROWS, ZERO

Constructor Summary

Conversions()

Method Summary

static boolean	applyAssignmentConversion(JavaType subject, JavaType target, boolean isConstantValue, JavaProvider provider) JLS 5.2.
static boolean	applyAssignmentConversion(JavaType subject, SourceExpression subjectExpr, JavaType target, boolean isConstantValue, JavaProvider provider) JLS 5.2.
protected static JavaType	applyBinaryPromotion(JavaType lhs, JavaType rhs) JLS 5.6.2.
static JavaType	applyBoxingConversion(PrimitiveType input, JavaProvider provider) JLS 5.1.7.
static boolean	applyCastingConversion(JavaType subject, JavaType target, JavaProvider provider) JLS 5.5.
static boolean	applyMethodConversion(JavaType subject, JavaType target, boolean allowBoxing, JavaProvider provider) JLS 5.3.
static boolean	applyNarrowingConversion(PrimitiveType subject, PrimitiveType target) JLS 5.1.3.
protected static JavaType	applyUnaryPromotion(JavaType subject) JLS 5.6.1.
static PrimitiveType	applyUnboxingConversion(JavaType input) JLS 5.1.8.
static boolean	applyWideningConversion(PrimitiveType subject, PrimitiveType target) JLS 5.1.2.
static boolean	hasSubsignatureOf(JavaMethod subject, JavaMethod target) JLS 8.4.2.
static boolean	inheritsFrom(JavaType subject, JavaType target)
static boolean	isSubtypeOf(JavaType subject, JavaType target) True if subject is a subtype of target.
static boolean	isSubtypeOfImpl(JavaType subject, JavaType target) subject and target are both assumed to not be primitive types or array types.
static boolean	isSubtypeOfImpl(JavaType subject, JavaType target, Conversions.ConversionType conversionType)

Methods inherited from class oracle.javatools.parser.util.ArrayListHeap

allocArrayList, freeArrayList

Methods inherited from class java.lang.Object

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

Constructor Detail

Conversions

public Conversions()

Method Detail

applyWideningConversion

public static boolean applyWideningConversion(PrimitiveType subject,
                                              PrimitiveType target)

JLS 5.1.2.

Returns:

True if subject may be widened to or is equal to the target.

applyNarrowingConversion

public static boolean applyNarrowingConversion(PrimitiveType subject,
                                               PrimitiveType target)

JLS 5.1.3.

Returns:

True if subject may be narrowed to or is equal to the target.

applyBoxingConversion

public static JavaType applyBoxingConversion(PrimitiveType input,
                                             JavaProvider provider)

JLS 5.1.7.

Parameters:

provider - A JavaProvider is necessary in order to lookup the class that results from the boxing conversion.

Returns:

The output of boxing conversion on the input.

applyUnboxingConversion

public static PrimitiveType applyUnboxingConversion(JavaType input)

JLS 5.1.8. For convenience of use, trying to unbox a primitive type returns the primitive type untouched.

Returns:

The output of unboxing conversion on the input.

applyAssignmentConversion

public static boolean applyAssignmentConversion(JavaType subject,
                                                JavaType target,
                                                boolean isConstantValue,
                                                JavaProvider provider)

JLS 5.2. Assignment conversion. Warning: this method will not report correct results for some cases where the subject is a type parameter. To get better results use applyAssignmentConversion(JavaType,SourceExpression,JavaType,boolean,JavaProvider)

Parameters:

subject - - the right hand side of the assignment

target - - the left hand side of the assigment

isConstantValue - True if the subject value is known to be a constant value. The caller may decide to call twice, the first time without checking for a constant value. If the first call fails, then the caller may resolve to see if the subject value is a constant value and then call again. If you don't know how to determine if the subject value is a constant value, set this to false.

provider - A JavaProvider must be provided in order to lookup the boxing conversion.

Returns:

True if subject can be converted by assignment conversion to target.

applyAssignmentConversion

public static boolean applyAssignmentConversion(JavaType subject,
                                                SourceExpression subjectExpr,
                                                JavaType target,
                                                boolean isConstantValue,
                                                JavaProvider provider)

JLS 5.2. Assignment conversion.

Parameters:

subject - - the right hand side of the assignment

subjectExpr - - the expression whose JavaType is 'subject', which can be null. Used to properly handle 'subject's that are type parameters

target - - the left hand side of the assigment

isConstantValue - True if the subject value is known to be a constant value. The caller may decide to call twice, the first time without checking for a constant value. If the first call fails, then the caller may resolve to see if the subject value is a constant value and then call again. If you don't know how to determine if the subject value is a constant value, set this to false.

provider - A JavaProvider must be provided in order to lookup the boxing conversion.

Returns:

True if subject can be converted by assignment conversion to target.

applyMethodConversion

public static boolean applyMethodConversion(JavaType subject,
                                            JavaType target,
                                            boolean allowBoxing,
                                            JavaProvider provider)

JLS 5.3. Method invocation conversion.

Parameters:

allowBoxing - If true, performs auto-boxing.

provider - A JavaProvider must be provided in order to lookup the boxing conversion. If boxing is not allowed, then no provider is needed.

Returns:

True if subject can be converted by method invocation conversion to target.

applyCastingConversion

public static boolean applyCastingConversion(JavaType subject,
                                             JavaType target,
                                             JavaProvider provider)

JLS 5.5. Casting conversion.

Returns:

True if subject can be converted by casting conversion to target.

inheritsFrom

public static boolean inheritsFrom(JavaType subject,
                                   JavaType target)

Parameters:

subject - Must be a reference type. Behavior is unpredictable otherwise.

target - Must be a reference type. Behavior is unpredictable otherwise.

Returns:

True if subject inherits from other. That means that the subject may be converted safely to other.

isSubtypeOf

public static boolean isSubtypeOf(JavaType subject,
                                  JavaType target)

True if subject is a subtype of target.

isSubtypeOfImpl

public static boolean isSubtypeOfImpl(JavaType subject,
                                      JavaType target)

subject and target are both assumed to not be primitive types or array types.

isSubtypeOfImpl

public static boolean isSubtypeOfImpl(JavaType subject,
                                      JavaType target,
                                      Conversions.ConversionType conversionType)

applyUnaryPromotion

protected static JavaType applyUnaryPromotion(JavaType subject)

JLS 5.6.1. Unary numeric promotion.

Returns:

True if subject can be converted by assignment conversion to target.

applyBinaryPromotion

protected static JavaType applyBinaryPromotion(JavaType lhs,
                                               JavaType rhs)

JLS 5.6.2. Binary numeric promotion.

Returns:

True if subject can be converted by assignment conversion to target.

hasSubsignatureOf

public static boolean hasSubsignatureOf(JavaMethod subject,
                                        JavaMethod target)

JLS 8.4.2. Method subsignature.

Returns:

True if the signature of subject is a subsignature of target.