Package com.intellij.lang

Class ExpressionTypeProvider<T extends PsiElement>

java.lang.Object

com.intellij.lang.ExpressionTypeProvider<T>

Direct Known Subclasses:

GroovyExpressionTypeProvider, JavaTypeProvider, PythonExpressionTypeProvider

public abstract class ExpressionTypeProvider<T extends PsiElement>
extends java.lang.Object

See Also:

ShowExpressionTypeAction

Constructor Summary

Constructors

Constructor and Description
ExpressionTypeProvider()

Method Summary

Modifier and Type	Method and Description
java.lang.String	getAdvancedInformationHint(T element) Returns HTML string containing advanced type information hint (e.g.
abstract java.lang.String	getErrorHint() Returns HTML string if no target found at position.
abstract java.util.List<T>	getExpressionsAt(PsiElement elementAt) Returns the list of all possible targets at specified position.
abstract java.lang.String	getInformationHint(T element) Returns HTML string for type info hint.
boolean	hasAdvancedInformation()

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionTypeProvider

public ExpressionTypeProvider()

Method Detail

getInformationHint

public abstract java.lang.String getInformationHint(T element)

Returns HTML string for type info hint.

See Also:

StringUtil.escapeXmlEntities(String)

getErrorHint

public abstract java.lang.String getErrorHint()

Returns HTML string if no target found at position.

getExpressionsAt

public abstract java.util.List<T> getExpressionsAt(PsiElement elementAt)

Returns the list of all possible targets at specified position.

hasAdvancedInformation

public boolean hasAdvancedInformation()

Returns:

true if this type provider can provide more useful information (e.g. value range, nullability, etc.) on elements via getAdvancedInformationHint(PsiElement).

getAdvancedInformationHint

public java.lang.String getAdvancedInformationHint(T element)

Returns HTML string containing advanced type information hint (e.g. nullability, values range, etc.)

Parameters:

element - an element to provide information about

Returns:

an advanced information hint. Should return the same result as getInformationHint(PsiElement) if no additional information is available for given element.

Throws:

java.lang.UnsupportedOperationException - if this provider does not provide any advanced information (in this case hasAdvancedInformation() method must return false).