PeepholeRemoveDeadCode (Compiler)

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com.google.javascript.jscomp
Class PeepholeRemoveDeadCode

java.lang.Object
  com.google.javascript.jscomp.PeepholeRemoveDeadCode

Peephole optimization to remove useless code such as IF's with false guard conditions, comma operator left hand sides with no side effects, etc.

Constructor Summary
`PeepholeRemoveDeadCode()`

Method Summary
`protected boolean`	`areNodesEqualForInlining(Node n1, Node n2)` Are the nodes equal for the purpose of inlining? If type aware optimizations are on, type equality is checked.
`protected void`	`error(DiagnosticType diagnostic, Node n)` Helper method for reporting an error to the compiler when applying a peephole optimization.
`protected boolean`	`isASTNormalized()` Is the current AST normalized? (e.g.
`protected void`	`reportCodeChange()` Helper method for telling the compiler that something has changed.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

public PeepholeRemoveDeadCode()

Method Detail

protected void error(DiagnosticType diagnostic,
                     Node n)

Helper method for reporting an error to the compiler when applying a peephole optimization.

Parameters:: diagnostic - The error type; n - The node for which the error should be reported

protected void reportCodeChange()

Helper method for telling the compiler that something has changed. Subclasses must call these if they have changed the AST.

protected boolean areNodesEqualForInlining(Node n1,
                                           Node n2)

Are the nodes equal for the purpose of inlining? If type aware optimizations are on, type equality is checked.

protected boolean isASTNormalized()

Is the current AST normalized? (e.g. has the Normalize pass been run and has the Denormalize pass not yet been run?)