com.facebook.buck.core.starlark.compatible

Class BuckStarlarkStructObject

java.lang.Object

com.facebook.buck.core.starlark.compatible.BuckStarlarkStructObject

All Implemented Interfaces:

com.google.devtools.build.lib.skylarkinterface.SkylarkPrintable, com.google.devtools.build.lib.skylarkinterface.SkylarkValue, com.google.devtools.build.lib.syntax.ClassObject

Direct Known Subclasses:

BuiltInProviderInfo

public abstract class BuckStarlarkStructObject
extends Object
implements com.google.devtools.build.lib.syntax.ClassObject, com.google.devtools.build.lib.skylarkinterface.SkylarkValue

Marks a Java object as accessible by Skylark as a struct-like object called ClassObject. This also marks it as a SkylarkValue.

A struct like object is an object containing fields accessible via the dot syntax, like obj.field.

We currently do not support method calls.

Constructor Summary

Constructors

Constructor and Description
BuckStarlarkStructObject()

Method Summary

Modifier and Type	Method and Description
protected abstract Class<?>	getDeclaredClass()
String	getErrorMessageForUnknownField(String field)
com.google.common.collect.ImmutableCollection<String>	getFieldNames()
protected com.google.common.collect.ImmutableMap<String,Method>	getMethods()
Object	getValue(String name)
void	repr(com.google.devtools.build.lib.skylarkinterface.SkylarkPrinter printer)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.devtools.build.lib.skylarkinterface.SkylarkValue

isHashable, isImmutable

Methods inherited from interface com.google.devtools.build.lib.skylarkinterface.SkylarkPrintable

debugPrint, str

Constructor Detail

BuckStarlarkStructObject

public BuckStarlarkStructObject()

Method Detail

getValue

@Nullable
public Object getValue(String name)
                          throws com.google.devtools.build.lib.syntax.EvalException

Specified by:

getValue in interface com.google.devtools.build.lib.syntax.ClassObject

Throws:

com.google.devtools.build.lib.syntax.EvalException

getMethods

protected com.google.common.collect.ImmutableMap<String,Method> getMethods()

getDeclaredClass

protected abstract Class<?> getDeclaredClass()

Returns:

the class for which all declared methods on it are considered skylark accessible.

getFieldNames

public com.google.common.collect.ImmutableCollection<String> getFieldNames()

Specified by:

getFieldNames in interface com.google.devtools.build.lib.syntax.ClassObject

getErrorMessageForUnknownField

@Nullable
public String getErrorMessageForUnknownField(String field)

Specified by:

getErrorMessageForUnknownField in interface com.google.devtools.build.lib.syntax.ClassObject

repr

public void repr(com.google.devtools.build.lib.skylarkinterface.SkylarkPrinter printer)

Specified by:

repr in interface com.google.devtools.build.lib.skylarkinterface.SkylarkPrintable