com.google.javascript.jscomp

Class SyntacticScopeCreator

java.lang.Object

com.google.javascript.jscomp.SyntacticScopeCreator

public class SyntacticScopeCreator
extends java.lang.Object

The syntactic scope creator scans the parse tree to create a Scope object containing all the variable declarations in that scope. This class adds support for block-level scopes introduced in ECMAScript 6.

This implementation is not thread-safe.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	SyntacticScopeCreator.ScopeFactory A simple API for injecting the use of alternative Scope classes

Field Summary

Fields

Modifier and Type	Field and Description
static com.google.javascript.jscomp.ScopeCreator	ASSERT_NO_SCOPES_CREATED A scope creator that can be provided to NodeTraversal to ensure that no scopes are actually ever created.
static com.google.javascript.jscomp.SyntacticScopeCreator.RedeclarationHandler	DEFAULT_REDECLARATION_HANDLER

Constructor Summary

Constructors

Constructor and Description
SyntacticScopeCreator(AbstractCompiler compiler)
SyntacticScopeCreator(AbstractCompiler compiler, SyntacticScopeCreator.ScopeFactory scopeFactory)

Method Summary

Modifier and Type	Method and Description
Scope	createScope(Node n, AbstractScope<?,?> parent) Creates a Scope object.
boolean	hasBlockScope()

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_REDECLARATION_HANDLER

public static final com.google.javascript.jscomp.SyntacticScopeCreator.RedeclarationHandler DEFAULT_REDECLARATION_HANDLER

ASSERT_NO_SCOPES_CREATED

public static final com.google.javascript.jscomp.ScopeCreator ASSERT_NO_SCOPES_CREATED

A scope creator that can be provided to NodeTraversal to ensure that no scopes are actually ever created. This is in contrast to the default SyntacticScopeCreator, which will create scopes on demand.

Constructor Detail

SyntacticScopeCreator

public SyntacticScopeCreator(AbstractCompiler compiler)

SyntacticScopeCreator

public SyntacticScopeCreator(AbstractCompiler compiler,
                             SyntacticScopeCreator.ScopeFactory scopeFactory)

Method Detail

hasBlockScope

public boolean hasBlockScope()

createScope

public Scope createScope(Node n,
                         AbstractScope<?,?> parent)

Creates a Scope object.

Parameters:

n - the root node (either a FUNCTION node, a SCRIPT node, or a synthetic block node whose children are all SCRIPT nodes)

parent - the parent Scope object (may be null)