com.google.javascript.jscomp

Class CodePrinter.PrettyCodePrinter

java.lang.Object

com.google.javascript.jscomp.CodeConsumer

com.google.javascript.jscomp.CodePrinter.MappedCodePrinter

com.google.javascript.jscomp.CodePrinter.PrettyCodePrinter

Enclosing class:

CodePrinter

static class CodePrinter.PrettyCodePrinter
extends CodePrinter.MappedCodePrinter

Field Summary

Fields

Modifier and Type	Field and Description
private int	indent
(package private) static java.lang.String	INDENT

Fields inherited from class com.google.javascript.jscomp.CodePrinter.MappedCodePrinter

code, lineIndex, lineLength, lineLengthThreshold

Fields inherited from class com.google.javascript.jscomp.CodeConsumer

sawFunction, statementNeedsEnded, statementStarted

Constructor Summary

Constructors

Modifier	Constructor and Description
private	PrettyCodePrinter(int lineLengthThreshold, boolean createSourceMap, SourceMap.DetailLevel sourceMapDetailLevel)

Method Summary

Modifier and Type	Method and Description
(package private) void	append(java.lang.String str) Appends a string to the code, keeping track of the current line length.
(package private) void	appendBlockEnd()
(package private) void	appendBlockStart()
(package private) void	appendOp(java.lang.String op, boolean binOp)
(package private) void	beginCaseBody()
(package private) boolean	breakAfterBlockFor(Node n, boolean isStatementContext)
(package private) void	endCaseBody()
(package private) void	endFile() Called when we're at the end of a file.
(package private) void	endFunction(boolean statementContext)
(package private) void	endLine()
private static Node	getTryForCatch(Node n)
(package private) void	listSeparator()
(package private) void	maybeCutLine() This may start a new line if the current line is longer than the line length threshold.
(package private) void	maybeInsertSpace() Allows a consumer to insert spaces in locations where it is unnecessary but may improve the readability of the code.
(package private) void	maybeLineBreak()
(package private) boolean	shouldPreserveExtraBlocks() If the body of a for loop or the then clause of an if statement has a single statement, should it be wrapped in a block? If the body of a for loop or the then clause of an if statement has a single statement, should it be wrapped in a block? Doing so can help when pretty-printing the code, and permits putting a debugging breakpoint on the statement inside the condition.
(package private) void	startNewLine() Adds a newline to the code, resetting the line length and handling indenting for pretty printing.

Methods inherited from class com.google.javascript.jscomp.CodePrinter.MappedCodePrinter

endSourceMapping, generateSourceMap, getCode, getCurrentCharIndex, getCurrentLineIndex, getLastChar, reportLineCut, startSourceMapping

Methods inherited from class com.google.javascript.jscomp.CodeConsumer

add, addConstant, addIdentifier, addNumber, addOp, beginBlock, continueProcessing, endBlock, endBlock, endClass, endStatement, endStatement, isNegativeZero, isWordChar, maybeEndStatement, notePreferredLineBreak

Methods inherited from class java.lang.Object

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

Field Detail

INDENT

static final java.lang.String INDENT

See Also:

Constant Field Values

indent

private int indent

Constructor Detail

PrettyCodePrinter

private PrettyCodePrinter(int lineLengthThreshold,
                          boolean createSourceMap,
                          SourceMap.DetailLevel sourceMapDetailLevel)

Parameters:

lineLengthThreshold - The length of a line after which we force a newline when possible.

createSourceMap - Whether to generate source map data.

sourceMapDetailLevel - A filter to control which nodes get mapped into the source map.

Method Detail

append

void append(java.lang.String str)

Appends a string to the code, keeping track of the current line length.

Specified by:

append in class CodeConsumer

startNewLine

void startNewLine()

Adds a newline to the code, resetting the line length and handling indenting for pretty printing.

Overrides:

startNewLine in class CodeConsumer

maybeLineBreak

void maybeLineBreak()

Overrides:

maybeLineBreak in class CodeConsumer

maybeCutLine

void maybeCutLine()

This may start a new line if the current line is longer than the line length threshold.

Overrides:

maybeCutLine in class CodeConsumer

endLine

void endLine()

Overrides:

endLine in class CodeConsumer

appendBlockStart

void appendBlockStart()

Overrides:

appendBlockStart in class CodeConsumer

appendBlockEnd

void appendBlockEnd()

Overrides:

appendBlockEnd in class CodeConsumer

listSeparator

void listSeparator()

Overrides:

listSeparator in class CodeConsumer

endFunction

void endFunction(boolean statementContext)

Overrides:

endFunction in class CodeConsumer

beginCaseBody

void beginCaseBody()

Overrides:

beginCaseBody in class CodeConsumer

endCaseBody

void endCaseBody()

Overrides:

endCaseBody in class CodeConsumer

appendOp

void appendOp(java.lang.String op,
              boolean binOp)

Overrides:

appendOp in class CodeConsumer

shouldPreserveExtraBlocks

boolean shouldPreserveExtraBlocks()

If the body of a for loop or the then clause of an if statement has a single statement, should it be wrapped in a block? If the body of a for loop or the then clause of an if statement has a single statement, should it be wrapped in a block? Doing so can help when pretty-printing the code, and permits putting a debugging breakpoint on the statement inside the condition.

Overrides:

shouldPreserveExtraBlocks in class CodeConsumer

Returns:

if such expressions should be wrapped

maybeInsertSpace

void maybeInsertSpace()

Description copied from class: CodeConsumer

Allows a consumer to insert spaces in locations where it is unnecessary but may improve the readability of the code. This will be called in such places as after a statement and before opening parentheses, or after the end of a if block before the start of an else block.

Overrides:

maybeInsertSpace in class CodeConsumer

getTryForCatch

private static Node getTryForCatch(Node n)

Returns:

The TRY node for the specified CATCH node.

breakAfterBlockFor

boolean breakAfterBlockFor(Node n,
                           boolean isStatementContext)

Overrides:

breakAfterBlockFor in class CodeConsumer

Returns:

Whether the a line break should be added after the specified BLOCK.

endFile

void endFile()

Description copied from class: CodeConsumer

Called when we're at the end of a file.

Overrides:

endFile in class CodeConsumer