Package io.github.ocelot.glslprocessor.lib.anarres.cpp

Class Source

java.lang.Object

io.github.ocelot.glslprocessor.lib.anarres.cpp.Source

Direct Known Subclasses:

LexerSource

@Internal
public abstract class Source
extends Object

An input to the Preprocessor.

Inputs may come from Files, Strings or other sources. The preprocessor maintains a stack of Sources. Operations such as file inclusion or token pasting will push a new source onto the Preprocessor stack. Sources pop from the stack when they are exhausted; this may be transparent or explicit.

BUG: Error messages are not handled properly.

Constructor Summary

Constructors

Constructor	Description
Source()

Method Summary

Modifier and Type	Method	Description
protected void	error(int line, int column, String msg)
int	getColumn()	Returns the current column number within this Source.
int	getLine()	Returns the current line number within this Source.
@Nullable String	getName()	Returns the human-readable name of the current Source.
Token	skipline(boolean white)	Skips tokens until the end of line.
abstract Token	token()	Returns the next Token parsed from this input stream.
protected void	warning(int line, int column, String msg)

Methods inherited from class java.lang.Object

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

Constructor Details

Source

public Source()

Method Details

getName

@Nullable
public @Nullable String getName()

Returns the human-readable name of the current Source.

getLine

public int getLine()

Returns the current line number within this Source.

getColumn

public int getColumn()

Returns the current column number within this Source.

token

public abstract Token token()
                     throws LexerException

Returns the next Token parsed from this input stream.

Throws:

LexerException

See Also:

• Token

skipline

public Token skipline(boolean white)
               throws LexerException

Skips tokens until the end of line.

Parameters:

white - true if only whitespace is permitted on the remainder of the line.

Returns:

the NL token.

Throws:

LexerException

error

protected void error(int line,
 int column,
 String msg)
              throws LexerException

Throws:

LexerException

warning

protected void warning(int line,
 int column,
 String msg)
                throws LexerException

Throws:

LexerException