Class SelectStmt

A select statement.

Examples:

select {
case i1 = <-c1:
  print("received ", i1, " from c1\n")
case c2 <- i2:
  print("sent ", i2, " to c2\n")
case i3, ok := (<-c3):  // same as: i3, ok := <-c3
  if ok {
    print("received ", i3, " from c3\n")
  } else {
    print("c3 is closed\n")
  }
default:
  print("no communication\n")
}

Import path

import semmle.go.Stmt

Direct supertypes

Indirect supertypes

Known direct subtypes

Predicates

getACommClause	Gets a comm clause in this `select` statement.
getAPrimaryQlClass	Gets the name of a primary CodeQL class to which this node belongs.
getBody	Gets the body of this `select` statement.
getCommClause	Gets the `i`th comm clause (that is, `case` or `default` clause) in this `select` statement.
getDefaultCommClause	Gets the `default` clause in this `select` statement, if any.
getNonDefaultCommClause	Gets the `i`th `case` clause in this `select` statement.
getNumNonDefaultCommClause	Gets the number of `case` clauses in this `select` statement.
mayHaveSideEffects	Holds if the execution of this statement may produce observable side effects.
toString	Gets a textual representation of this element.

Inherited predicates

getAChild	Gets a child node of this node.	from AstNode
getAChildExpr	Gets an expression that is a child node of this node in the AST.	from ExprParent
getAChildStmt	Gets a statement that is a child node of this node in the AST.	from StmtParent
getChild	Gets the `i`th child node of this node.	from AstNode
getChildExpr	Gets the `i`th child expression of this node.	from ExprParent
getChildStmt	Gets the `i`th child statement of this node.	from StmtParent
getEnclosingFunction	Gets the innermost function definition to which this AST node belongs, if any.	from AstNode
getFile	Gets the file this program element comes from.	from Locatable
getFirstControlFlowNode	Gets the first control-flow node in this statement.	from Stmt
getKind	Gets the kind of this statement, which is an integer value representing the statement’s node type.	from Stmt
getLocation	Gets this element’s location.	from Locatable
getNumChild	Gets the number of child nodes of this node.	from AstNode
getNumChildExpr	Gets the number of child expressions of this node.	from ExprParent
getNumChildStmt	Gets the number of child statements of this node.	from StmtParent
getNumLines	Gets the number of lines covered by this element.	from Locatable
getParent	Gets the parent node of this AST node, if any.	from AstNode
getPrimaryQlClasses	Gets a comma-separated list of the names of the primary CodeQL classes to which this element belongs.	from AstNode
getUniquelyNumberedChild	Get an AstNode child, ordered by child kind and then by index.	from AstNode
hasLocationInfo	Holds if this element is at the specified location. The location spans column `startcolumn` of line `startline` to column `endcolumn` of line `endline` in file `filepath`. For more information, see Locations.	from Locatable