EquivalentExpressions

EquivalentExpressions is…​FIXME

Table 1. EquivalentExpressions’s Internal Properties (e.g. Registries, Counters and Flags)
Name Description

equivalenceMap

Equivalent sets of expressions, i.e. semantically equal expressions by their Expr "representative"

Used when…​FIXME

addExprTree Method

addExprTree(expr: Expression): Unit

addExprTree…​FIXME

Note
addExprTree is used when CodegenContext is requested to subexpressionElimination or subexpressionEliminationForWholeStageCodegen.

addExpr Method

addExpr(expr: Expression): Boolean

addExpr…​FIXME

Note

addExpr is used when:

Getting Equivalent Sets Of Expressions — getAllEquivalentExprs Method

getAllEquivalentExprs: Seq[Seq[Expression]]

getAllEquivalentExprs takes the values of all the equivalent sets of expressions.

Note
getAllEquivalentExprs is used when CodegenContext is requested to subexpressionElimination or subexpressionEliminationForWholeStageCodegen.

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