jltools.ast
Class Precedence

java.lang.Object
  |
  +--jltools.util.Enum
        |
        +--jltools.ast.Precedence

All Implemented Interfaces:

java.io.Serializable

public class Precedence

extends Enum

Constants defining the precedence of an expression. Higher values denote higher precedence (i.e., tighter binding).

See Also:

Serialized Form

Field Summary

static Precedence	ADD The precedence of a + when applied to numbers, and the precedence of -.
static Precedence	ASSIGN The precedence of assignment expressions.
static Precedence	BIT_AND The precedence of bitwise AND (&) expressions.
static Precedence	BIT_OR The precedence of bitwise OR (|) expressions.
static Precedence	BIT_XOR The precedence of bitwise XOR (^) expressions.
static Precedence	CAST The precedence of a cast expression.
static Precedence	COND_AND The precedence of conditional AND (&&) expressions.
static Precedence	COND_OR The precedence of conditional OR (||) expressions.
static Precedence	CONDITIONAL The precedence of ternary conditional expressions.
static Precedence	EQUAL The precedence of == and != expressions.
static Precedence	INSTANCEOF The precedence of instanceof expressions.
static Precedence	LITERAL The precedence of a literal
static Precedence	MUL The precedence of a *, /, or % expression.
static Precedence	RELATIONAL The precedence of the relational expressions <, >, <=, and >=.
static Precedence	SHIFT The precedence of the shift expressions <<, >>, and >>>.
static Precedence	STRING_ADD The precedence of a + when applied to Strings.
static Precedence	UNARY The precedence of a unary expression.
static Precedence	UNKNOWN The precedence of all other expressions.

Constructor Summary

protected

Precedence(java.lang.String name, int value)

Method Summary

boolean	equals(java.lang.Object o) Returns true if this and p have the same precedence.
boolean	isSame(Precedence p) Returns true if this and p have the same precedence.
boolean	isTighter(Precedence p) Returns true if this binds tighter than p.

Methods inherited from class jltools.util.Enum

intern, toString

Methods inherited from class java.lang.Object

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

Field Detail

LITERAL

public static final Precedence LITERAL

The precedence of a literal

UNARY

public static final Precedence UNARY

The precedence of a unary expression.

CAST

public static final Precedence CAST

The precedence of a cast expression.

MUL

public static final Precedence MUL

The precedence of a *, /, or % expression.

STRING_ADD

public static final Precedence STRING_ADD

The precedence of a + when applied to Strings. This is of higher precedence than + applied to numbers.

ADD

public static final Precedence ADD

The precedence of a + when applied to numbers, and the precedence of -.

SHIFT

public static final Precedence SHIFT

The precedence of the shift expressions <<, >>, and >>>.

RELATIONAL

public static final Precedence RELATIONAL

The precedence of the relational expressions <, >, <=, and >=.

INSTANCEOF

public static final Precedence INSTANCEOF

The precedence of instanceof expressions.

EQUAL

public static final Precedence EQUAL

The precedence of == and != expressions.

BIT_AND

public static final Precedence BIT_AND

The precedence of bitwise AND (&) expressions.

BIT_XOR

public static final Precedence BIT_XOR

The precedence of bitwise XOR (^) expressions.

BIT_OR

public static final Precedence BIT_OR

The precedence of bitwise OR (|) expressions.

COND_AND

public static final Precedence COND_AND

The precedence of conditional AND (&&) expressions.

COND_OR

public static final Precedence COND_OR

The precedence of conditional OR (||) expressions.

CONDITIONAL

public static final Precedence CONDITIONAL

The precedence of ternary conditional expressions.

ASSIGN

public static final Precedence ASSIGN

The precedence of assignment expressions.

UNKNOWN

public static final Precedence UNKNOWN

The precedence of all other expressions. This has the lowest precedence to ensure the expression is parenthesized on output.

Constructor Detail

Precedence

protected Precedence(java.lang.String name,
                     int value)

Method Detail

equals

public boolean equals(java.lang.Object o)

Returns true if this and p have the same precedence.

Overrides:

equals in class Enum

isSame

public boolean isSame(Precedence p)

Returns true if this and p have the same precedence.

isTighter

public boolean isTighter(Precedence p)

Returns true if this binds tighter than p.