Class ValueDiscardingExpr
An expression for which the value of the expression as a whole is discarded. Only cases
of discarded values at the language level (as described by the JLS) are considered;
data flow, for example to determine if an assigned variable value is ever read, is not
considered. Such expressions can for example appear as part of an ExprStmt or as
initializer of a for loop.
For example, for the statement i++; the value of the increment expression, that is the
old value of variable i, is discarded. Whereas for the statement println(i++); the
value of the increment expression is not discarded but used as argument for the method call.
Import path
import javaDirect supertypes
Indirect supertypes
Inherited predicates
| getAChildExpr | Gets a child of this expression. | from Expr |
| getAPrimaryQlClass | Gets the name of a primary CodeQL class to which this element belongs. | from Top |
| getAnEnclosingStmt | Gets a statement that directly or transitively contains this expression, if any. This is equivalent to | from Expr |
| getBasicBlock | Gets the basic block in which this expression occurs, if any. | from Expr |
| getCompilationUnit | Gets the compilation unit in which this expression occurs. | from Expr |
| getControlFlowNode | Gets the | from Expr |
| getEnclosingCallable | Gets the callable in which this expression occurs, if any. | from Expr |
| getEnclosingStmt | Gets the statement containing this expression, if any. | from Expr |
| getFile | Gets the file associated with this element. | from Top |
| getHalsteadID | This statement’s Halstead ID (used to compute Halstead metrics). | from Expr |
| getIndex | Gets the index of this expression as a child of its parent. | from Expr |
| getKind | Gets the kind of this expression. | from Expr |
| getKotlinType | Gets the Kotlin type of this expression. | from Expr |
| getLocation | Gets the source location for this element. | from Top |
| getNumberOfCommentLines | Gets the number of comment lines that this element ranges over. | from Top |
| getNumberOfLinesOfCode | Gets the number of lines of code that this element ranges over. | from Top |
| getParent | Gets the parent of this expression. | from Expr |
| getPrimaryQlClasses | Gets a comma-separated list of the names of the primary CodeQL classes to which this element belongs. | from Top |
| getTotalNumberOfLines | Gets the total number of lines that this element ranges over, including lines of code, comment and whitespace-only lines. | from Top |
| getType | Gets the type of this expression. | from Expr |
| getUnderlyingExpr | Gets the underlying expression looking through casts and not-nulls, if any. Otherwise just gets this expression. | from Expr |
| hasLocationInfo | Holds if this element is at the specified location. The location spans column | from Top |
| isCompileTimeConstant | Holds if this expression is a compile-time constant. | from Expr |
| isInStaticContext | Holds if this expression occurs in a static context. | from Expr |
| isNthChildOf | Holds if this expression is the child of the specified parent at the specified (zero-based) position. | from Expr |
| isParenthesized | Holds if this expression is parenthesized. | from Expr |
| toString | Gets a textual representation of this element. | from Expr |