Package com.google.common.css.compiler.passes

Class CodePrinter

java.lang.Object

com.google.common.css.compiler.passes.CodePrinter

All Implemented Interfaces:

CssCompilerPass

Direct Known Subclasses:

CompactPrinter, PrettyPrinter, SExprPrinter

public abstract class CodePrinter
extends Object
implements CssCompilerPass

An abstract code-printer for CssTree instances that provides read/write access to the output buffer and performs common tasks during code generation, like creating sourcemaps.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CodePrinter(VisitController visitController, CodeBuffer buffer, GssSourceMapGenerator generator)	Initializes this instance from the given VisitController, could optionally accept CodeBuffer and GssSourceMapGenerator to use.

Method Summary

Modifier and Type	Method	Description
protected abstract CssTreeVisitor	createVisitor(VisitController visitController, CodeBuffer codeBuffer)	Constructs the visitor required by the subclass.
protected final String	getOutputBuffer()
protected final void	resetBuffer()
void	setPreserveMarkedComments(boolean preserveMarkedComments)	Whether special comments in the CSS nodes are preserved in the printed output.
protected final void	visit()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.common.css.compiler.ast.CssCompilerPass

runPass

Constructor Details

CodePrinter

protected CodePrinter(VisitController visitController,
 @Nullable
 CodeBuffer buffer,
 @Nullable
 GssSourceMapGenerator generator)

Initializes this instance from the given VisitController, could optionally accept CodeBuffer and GssSourceMapGenerator to use.

Method Details

createVisitor

protected abstract CssTreeVisitor createVisitor(VisitController visitController,
 CodeBuffer codeBuffer)

Constructs the visitor required by the subclass. This visitor's enter* methods will be called after the source map generator's startSourceMapping method and before its endSourceMapping method.

visit

protected final void visit()

resetBuffer

protected final void resetBuffer()

getOutputBuffer

protected final String getOutputBuffer()

setPreserveMarkedComments

public void setPreserveMarkedComments(boolean preserveMarkedComments)

Whether special comments in the CSS nodes are preserved in the printed output. Currently supported special comments are annotated with one of the following:

• @preserve
• @license
• /*! (start of comment)

Comments marked with @license will cause a special "END OF LICENSED CSS FILE" comment to be inserted when the parser moves on to a new source file. Note that some optimizations may move pieces around, so there's no guarantees the licensed file will remain entirely intact.

Note: Comments layout is not guaranteed, since detailed position information in the input files is not preserved by the parser.