Package org.sonar.python.checks.utils

Class Expressions

java.lang.Object

org.sonar.python.checks.utils.Expressions

public class Expressions
extends Object

Method Summary

Modifier and Type	Method	Description
static boolean	isFalsy(Expression expression)
static boolean	isTruthy(Expression expression)
static Expression	removeParentheses(Expression expression)
static Expression	singleAssignedNonNameValue(Name name)
static Expression	singleAssignedValue(Name name)
static Expression	singleAssignedValue(Name name, Set<Name> visited)
static String	unescape(StringElement stringElement)
static String	unescape(StringLiteral stringLiteral)
static String	unescapeString(String value, boolean isBytesLiteral)

Methods inherited from class java.lang.Object

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

Method Details

isFalsy

public static boolean isFalsy(@Nullable
 Expression expression)

isTruthy

public static boolean isTruthy(@Nullable
 Expression expression)

singleAssignedValue

public static Expression singleAssignedValue(Name name)

singleAssignedValue

public static Expression singleAssignedValue(Name name,
 Set<Name> visited)

singleAssignedNonNameValue

public static Expression singleAssignedNonNameValue(Name name)

removeParentheses

public static Expression removeParentheses(@Nullable
 Expression expression)

unescape

public static String unescape(StringLiteral stringLiteral)

Returns:

concatenation of all underlying StringElement text values without quotes and with escape sequences replacement.

See Also:

• 2.4.1. String and Bytes literals

unescape

public static String unescape(StringElement stringElement)

Returns:

the string content of the given StringElement text values without quotes and with escape sequences replacement.

See Also:

• 2.4.1. String and Bytes literals

unescapeString

public static String unescapeString(String value,
 boolean isBytesLiteral)

Parameters:

value - to unescape according to python string and bytes literals conventions

isBytesLiteral - knowing if it's a string, or an array of bytes is important because python string uses 16 bits characters and support backslash u and U escape sequences 'a' == 'a' python bytes array uses 8 bits values and does not support and unescape backslash u and U escape sequences b'a' != b'a' b'a' == b'\\u0061'

Returns:

unescaped value