com.google.gwt.codegen.server
Class StringGenerator

java.lang.Object
  com.google.gwt.codegen.server.StringGenerator

Direct Known Subclasses:

PlainStringGenerator, SafeHtmlStringGenerator

public abstract class StringGenerator
extends java.lang.Object

Helper class to produce string expressions consisting of literals and computed values.

buf

protected final java.lang.StringBuilder buf

Output string buffer.

inString

protected boolean inString

True if we are in the middle of a string literal.

StringGenerator

protected StringGenerator(java.lang.StringBuilder buf)

Initialize the StringGenerator with an output buffer.

Parameters:

buf - output buffer

create

public static StringGenerator create(java.lang.StringBuilder buf,
                                     boolean returnsSafeHtml)

Create a StringGenerator instance.

Parameters:

buf -

returnsSafeHtml -

Returns:

StringGenerator instance

appendExpression

public void appendExpression(java.lang.String expression,
                             boolean isSafeHtmlTyped,
                             boolean isPrimitiveTyped,
                             boolean needsConversionToString)

Append an expression to this string expression.

Parameters:

expression - to add

isSafeHtmlTyped - true if the expression is known to be of type SafeHtml; only relevant if this generator has been initialized to generate a SafeHtml-valued expression

isPrimitiveTyped - true if the expression is of a primitive type; only relevant if this generator has been initialized to generate a SafeHtml-valued expression

needsConversionToString - true if the expression is not known to be of type String and needs to be converted

appendStringLiteral

public void appendStringLiteral(java.lang.String str)

Append part of a string literal.

Parameters:

str - part of string literal

appendStringValuedExpression

public void appendStringValuedExpression(java.lang.String expression)

Append an expression to this string expression.

Parameters:

expression - to add, which the caller asserts is String-valued

completeString

public void completeString()

Complete the string, closing an open quote and handling empty strings.

afterExpression

protected abstract void afterExpression(StringGenerator.Type type)

beforeExpression

protected abstract void beforeExpression(StringGenerator.Type type)

finishOutput

protected abstract void finishOutput()

forceStringPrefix

protected abstract void forceStringPrefix()

forceStringSuffix

protected abstract void forceStringSuffix()