veneer 1.3.2 · io.github.kusoroadeolu.veneer.JavaScriptLexerBase

Field Summary

Modifier and Type	Field and Description
private Token	lastToken
private final Deque<Boolean>	scopeStrictModes Stores values of nested modes.
private int	templateDepth Keeps track of the current depth of nested template string backticks.
private boolean	useStrictCurrent Current value of strict mode Can be defined during parsing, see StringFunctions.js and StringGlobal.js samples
private boolean	useStrictDefault Default value of strict mode Can be defined externally by setUseStrictDefault

Constructor Summary

Access	Constructor and Description
public	JavaScriptLexerBase(CharStream input)

Method Summary

Modifier and Type	Method and Description
public void	DecreaseTemplateDepth()
public boolean	getStrictDefault()
public void	IncreaseTemplateDepth()
public boolean	IsInTemplateString()
protected boolean	IsJsxPossible() Returns `true` if the lexer can match a JSX opening element.
protected boolean	IsRegexPossible() Returns `true` if the lexer can match a regex literal.
public boolean	IsStartOfFile()
public boolean	IsStrictMode()
public Token	Returns: the next token from the character stream. nextToken() Overrides org.antlr.v4.runtime.Lexer.nextToken. Implements org.antlr.v4.runtime.TokenSource.nextToken. Return the next token from the character stream and records this last token in case it resides on the default channel.
protected void	ProcessCloseBrace()
protected void	ProcessOpenBrace()
protected void	ProcessStringLiteral()
public void	setUseStrictDefault(boolean value)

Field Detail

lastToken	back to summary
private Token lastToken

scopeStrictModes	back to summary
private final Deque<Boolean> scopeStrictModes Stores values of nested modes. By default, mode is strict or defined externally (useStrictDefault)

templateDepth	back to summary
private int templateDepth Keeps track of the current depth of nested template string backticks. E.g. after the X in: `${a ? `${X templateDepth will be 2. This variable is needed to determine if a `}` is a plain CloseBrace, or one that closes an expression inside a template string.

useStrictCurrent	back to summary
private boolean useStrictCurrent Current value of strict mode Can be defined during parsing, see StringFunctions.js and StringGlobal.js samples

useStrictDefault	back to summary
private boolean useStrictDefault Default value of strict mode Can be defined externally by setUseStrictDefault

Constructor Detail

JavaScriptLexerBase	back to summary
public JavaScriptLexerBase(CharStream input)

Method Detail

DecreaseTemplateDepth	back to summary
public void DecreaseTemplateDepth()

getStrictDefault	back to summary
public boolean getStrictDefault()

IncreaseTemplateDepth	back to summary
public void IncreaseTemplateDepth()

IsInTemplateString	back to summary
public boolean IsInTemplateString()

IsJsxPossible	back to summary
protected boolean IsJsxPossible() Returns `true` if the lexer can match a JSX opening element.

IsRegexPossible	back to summary
protected boolean IsRegexPossible() Returns `true` if the lexer can match a regex literal.

IsStartOfFile	back to summary
public boolean IsStartOfFile()

IsStrictMode	back to summary
public boolean IsStrictMode()

nextToken	back to summary
public Token nextToken() Overrides org.antlr.v4.runtime.Lexer.nextToken. Implements org.antlr.v4.runtime.TokenSource.nextToken. Return the next token from the character stream and records this last token in case it resides on the default channel. This recorded token is used to determine when the lexer could possibly match a regex literal. Also changes scopeStrictModes stack if tokenize special string 'use strict'; Returns:Token the next token from the character stream. Annotations @Override

nextToken

back to summary

public Token nextToken()

Overrides org.antlr.v4.runtime.Lexer.nextToken.

Implements org.antlr.v4.runtime.TokenSource.nextToken.

Return the next token from the character stream and records this last token in case it resides on the default channel. This recorded token is used to determine when the lexer could possibly match a regex literal. Also changes scopeStrictModes stack if tokenize special string 'use strict';

Returns:Token

the next token from the character stream.

Annotations

@Override

ProcessCloseBrace	back to summary
protected void ProcessCloseBrace()

ProcessOpenBrace	back to summary
protected void ProcessOpenBrace()

ProcessStringLiteral	back to summary
protected void ProcessStringLiteral()

setUseStrictDefault	back to summary
public void setUseStrictDefault(boolean value)