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package com.oracle.js.parser.ir;

Statement is something that becomes code and can be stepped past. A block is made up of statements. The only node subclass that needs to keep token and location information is the Statement
/** * Statement is something that becomes code and can be stepped past. A block is made up of * statements. The only node subclass that needs to keep token and location information is the * Statement */
public abstract class Statement extends Node implements Terminal { private final int lineNumber;
Constructor
Params:
  • lineNumber – line number
  • token – token
  • finish – finish
/** * Constructor * * @param lineNumber line number * @param token token * @param finish finish */
public Statement(final int lineNumber, final long token, final int finish) { super(token, finish); this.lineNumber = lineNumber; }
Constructor
Params:
  • lineNumber – line number
  • token – token
  • start – start
  • finish – finish
/** * Constructor * * @param lineNumber line number * @param token token * @param start start * @param finish finish */
public Statement(final int lineNumber, final long token, final int start, final int finish) { super(token, start, finish); this.lineNumber = lineNumber; }
Copy constructor
Params:
  • node – source node
/** * Copy constructor * * @param node source node */
protected Statement(final Statement node) { super(node); this.lineNumber = node.lineNumber; }
Return the line number
Returns:line number
/** * Return the line number * * @return line number */
public int getLineNumber() { return lineNumber; }
Is this a terminal statement, i.e. does it end control flow like a throw or return?
Returns:true if this node statement is terminal
/** * Is this a terminal statement, i.e. does it end control flow like a throw or return? * * @return true if this node statement is terminal */
@Override public boolean isTerminal() { return false; }
Check if this statement repositions control flow with goto like semantics, for example BreakNode or a ForNode with no test
Returns:true if statement has goto semantics
/** * Check if this statement repositions control flow with goto like semantics, for example * {@link BreakNode} or a {@link ForNode} with no test * * @return true if statement has goto semantics */
public boolean hasGoto() { return false; }
Check if this statement has terminal flags, i.e. ends or breaks control flow
Returns:true if has terminal flags
/** * Check if this statement has terminal flags, i.e. ends or breaks control flow * * @return true if has terminal flags */
public final boolean hasTerminalFlags() { return isTerminal() || hasGoto(); }
Returns:true if the completion value of this statement is never the value empty
/** * @return true if the completion value of this statement is never the value {@code empty} */
public boolean isCompletionValueNeverEmpty() { return false; } }