com.google.javascript.jscomp

Enum ControlFlowGraph.Branch

java.lang.Object

java.lang.Enum<ControlFlowGraph.Branch>

com.google.javascript.jscomp.ControlFlowGraph.Branch

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<ControlFlowGraph.Branch>

Enclosing class:

ControlFlowGraph<N>

public static enum ControlFlowGraph.Branch
extends java.lang.Enum<ControlFlowGraph.Branch>

The edge object for the control flow graph.

Enum Constant Summary

Enum Constants

Enum Constant and Description
ON_EX Exception-handling code paths.
ON_FALSE Edge is taken if the condition is false.
ON_TRUE Edge is taken if the condition is true.
SYN_BLOCK Possible folded-away template
UNCOND Unconditional branch.

Method Summary

Modifier and Type	Method and Description
boolean	isConditional()
static ControlFlowGraph.Branch	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static ControlFlowGraph.Branch[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

ON_TRUE

public static final ControlFlowGraph.Branch ON_TRUE

Edge is taken if the condition is true.

ON_FALSE

public static final ControlFlowGraph.Branch ON_FALSE

Edge is taken if the condition is false.

UNCOND

public static final ControlFlowGraph.Branch UNCOND

Unconditional branch.

ON_EX

public static final ControlFlowGraph.Branch ON_EX

Exception-handling code paths. Conflates two kind of control flow passing: - An exception is thrown, and falls into a catch or finally block - During exception handling, a finally block finishes and control passes to the next finally block. In theory, we need 2 different edge types. In practice, we can just treat them as "the edges we can't really optimize".

SYN_BLOCK

public static final ControlFlowGraph.Branch SYN_BLOCK

Possible folded-away template

Method Detail

values

public static ControlFlowGraph.Branch[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (ControlFlowGraph.Branch c : ControlFlowGraph.Branch.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ControlFlowGraph.Branch valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

isConditional

public boolean isConditional()