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Call getClass 30 times less in TreeTransforms initialisation.
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‎src/dotty/tools/dotc/transform/TreeTransform.scala

Lines changed: 74 additions & 69 deletions
Original file line numberDiff line numberDiff line change
@@ -218,7 +218,7 @@ object TreeTransforms {
218218
* i <= j
219219
* j == transforms.length || transform(j) defines a non-default method with given `name`
220220
*/
221-
private def index(transformations: Array[TreeTransform], name: String): Array[Int] = {
221+
private def index(transformations: Array[Class[_ <: TreeTransform]], name: String): Array[Int] = {
222222
val len = transformations.length
223223
val next = new Array[Int](len + 1)
224224
var nextTransform: Int = len
@@ -231,7 +231,7 @@ object TreeTransforms {
231231
var i = len - 1
232232
while (i >= 0) {
233233
// update nextTransform if this phase redefines the method
234-
if (hasRedefinedMethod(transformations(i).getClass, name)) {
234+
if (hasRedefinedMethod(transformations(i), name)) {
235235
nextTransform = i
236236
}
237237
next(i) = nextTransform
@@ -240,8 +240,8 @@ object TreeTransforms {
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next
241241
}
242242

243-
private def indexUpdate(prev: Array[Int], changedTansformation: TreeTransform, index: Int, name: String, copy: Boolean = true) = {
244-
val isDefinedNow = hasRedefinedMethod(changedTansformation.getClass, name)
243+
private def indexUpdate(prev: Array[Int], changedTansformation: Class[_ <: TreeTransform], index: Int, name: String, copy: Boolean = true) = {
244+
val isDefinedNow = hasRedefinedMethod(changedTansformation, name)
245245
val wasDefinedBefore = prev(index) == index
246246
if (isDefinedNow == wasDefinedBefore) prev
247247
else {
@@ -259,7 +259,7 @@ object TreeTransforms {
259259
}
260260
}
261261

262-
def this(transformations: Array[TreeTransform]) = {
262+
def this(transformations: Array[Class[_ <: TreeTransform]]) = {
263263
this()
264264
nxPrepIdent = index(transformations, "prepareForIdent")
265265
nxPrepSelect = index(transformations, "prepareForSelect")
@@ -329,73 +329,78 @@ object TreeTransforms {
329329
nxTransOther = index(transformations, "transformOther")
330330
}
331331

332+
def this(transformations: Array[TreeTransform]) = {
333+
this(transformations.map(_.getClass))
334+
}
335+
332336
def this(prev: NXTransformations, changedTansformation: TreeTransform, transformationIndex: Int, reuse: Boolean = false) = {
333337
this()
334338
val copy = !reuse
335-
nxPrepIdent = indexUpdate(prev.nxPrepIdent, changedTansformation, transformationIndex, "prepareForIdent", copy)
336-
nxPrepSelect = indexUpdate(prev.nxPrepSelect, changedTansformation, transformationIndex, "prepareForSelect", copy)
337-
nxPrepThis = indexUpdate(prev.nxPrepThis, changedTansformation, transformationIndex, "prepareForThis", copy)
338-
nxPrepSuper = indexUpdate(prev.nxPrepSuper, changedTansformation, transformationIndex, "prepareForSuper", copy)
339-
nxPrepApply = indexUpdate(prev.nxPrepApply, changedTansformation, transformationIndex, "prepareForApply", copy)
340-
nxPrepTypeApply = indexUpdate(prev.nxPrepTypeApply, changedTansformation, transformationIndex, "prepareForTypeApply", copy)
341-
nxPrepLiteral = indexUpdate(prev.nxPrepLiteral, changedTansformation, transformationIndex, "prepareForLiteral", copy)
342-
nxPrepNew = indexUpdate(prev.nxPrepNew, changedTansformation, transformationIndex, "prepareForNew", copy)
343-
nxPrepPair = indexUpdate(prev.nxPrepPair, changedTansformation, transformationIndex, "prepareForPair", copy)
344-
nxPrepTyped = indexUpdate(prev.nxPrepTyped, changedTansformation, transformationIndex, "prepareForTyped", copy)
345-
nxPrepAssign = indexUpdate(prev.nxPrepAssign, changedTansformation, transformationIndex, "prepareForAssign", copy)
346-
nxPrepBlock = indexUpdate(prev.nxPrepBlock, changedTansformation, transformationIndex, "prepareForBlock", copy)
347-
nxPrepIf = indexUpdate(prev.nxPrepIf, changedTansformation, transformationIndex, "prepareForIf", copy)
348-
nxPrepClosure = indexUpdate(prev.nxPrepClosure, changedTansformation, transformationIndex, "prepareForClosure", copy)
349-
nxPrepMatch = indexUpdate(prev.nxPrepMatch, changedTansformation, transformationIndex, "prepareForMatch", copy)
350-
nxPrepCaseDef = indexUpdate(prev.nxPrepCaseDef, changedTansformation, transformationIndex, "prepareForCaseDef", copy)
351-
nxPrepReturn = indexUpdate(prev.nxPrepReturn, changedTansformation, transformationIndex, "prepareForReturn", copy)
352-
nxPrepTry = indexUpdate(prev.nxPrepTry, changedTansformation, transformationIndex, "prepareForTry", copy)
353-
nxPrepThrow = indexUpdate(prev.nxPrepThrow, changedTansformation, transformationIndex, "prepareForThrow", copy)
354-
nxPrepSeqLiteral = indexUpdate(prev.nxPrepSeqLiteral, changedTansformation, transformationIndex, "prepareForSeqLiteral", copy)
355-
nxPrepTypeTree = indexUpdate(prev.nxPrepTypeTree, changedTansformation, transformationIndex, "prepareForTypeTree", copy)
356-
nxPrepSelectFromTypeTree = indexUpdate(prev.nxPrepSelectFromTypeTree, changedTansformation, transformationIndex, "prepareForSelectFromTypeTree", copy)
357-
nxPrepBind = indexUpdate(prev.nxPrepBind, changedTansformation, transformationIndex, "prepareForBind", copy)
358-
nxPrepAlternative = indexUpdate(prev.nxPrepAlternative, changedTansformation, transformationIndex, "prepareForAlternative", copy)
359-
nxPrepUnApply = indexUpdate(prev.nxPrepUnApply, changedTansformation, transformationIndex, "prepareForUnApply", copy)
360-
nxPrepValDef = indexUpdate(prev.nxPrepValDef, changedTansformation, transformationIndex, "prepareForValDef", copy)
361-
nxPrepDefDef = indexUpdate(prev.nxPrepDefDef, changedTansformation, transformationIndex, "prepareForDefDef", copy)
362-
nxPrepTypeDef = indexUpdate(prev.nxPrepTypeDef, changedTansformation, transformationIndex, "prepareForTypeDef", copy)
363-
nxPrepTemplate = indexUpdate(prev.nxPrepTemplate, changedTansformation, transformationIndex, "prepareForTemplate", copy)
364-
nxPrepPackageDef = indexUpdate(prev.nxPrepPackageDef, changedTansformation, transformationIndex, "prepareForPackageDef", copy)
365-
nxPrepStats = indexUpdate(prev.nxPrepStats, changedTansformation, transformationIndex, "prepareForStats", copy)
366-
367-
nxTransIdent = indexUpdate(prev.nxTransIdent, changedTansformation, transformationIndex, "transformIdent", copy)
368-
nxTransSelect = indexUpdate(prev.nxTransSelect, changedTansformation, transformationIndex, "transformSelect", copy)
369-
nxTransThis = indexUpdate(prev.nxTransThis, changedTansformation, transformationIndex, "transformThis", copy)
370-
nxTransSuper = indexUpdate(prev.nxTransSuper, changedTansformation, transformationIndex, "transformSuper", copy)
371-
nxTransApply = indexUpdate(prev.nxTransApply, changedTansformation, transformationIndex, "transformApply", copy)
372-
nxTransTypeApply = indexUpdate(prev.nxTransTypeApply, changedTansformation, transformationIndex, "transformTypeApply", copy)
373-
nxTransLiteral = indexUpdate(prev.nxTransLiteral, changedTansformation, transformationIndex, "transformLiteral", copy)
374-
nxTransNew = indexUpdate(prev.nxTransNew, changedTansformation, transformationIndex, "transformNew", copy)
375-
nxTransPair = indexUpdate(prev.nxTransPair, changedTansformation, transformationIndex, "transformPair", copy)
376-
nxTransTyped = indexUpdate(prev.nxTransTyped, changedTansformation, transformationIndex, "transformTyped", copy)
377-
nxTransAssign = indexUpdate(prev.nxTransAssign, changedTansformation, transformationIndex, "transformAssign", copy)
378-
nxTransBlock = indexUpdate(prev.nxTransBlock, changedTansformation, transformationIndex, "transformBlock", copy)
379-
nxTransIf = indexUpdate(prev.nxTransIf, changedTansformation, transformationIndex, "transformIf", copy)
380-
nxTransClosure = indexUpdate(prev.nxTransClosure, changedTansformation, transformationIndex, "transformClosure", copy)
381-
nxTransMatch = indexUpdate(prev.nxTransMatch, changedTansformation, transformationIndex, "transformMatch", copy)
382-
nxTransCaseDef = indexUpdate(prev.nxTransCaseDef, changedTansformation, transformationIndex, "transformCaseDef", copy)
383-
nxTransReturn = indexUpdate(prev.nxTransReturn, changedTansformation, transformationIndex, "transformReturn", copy)
384-
nxTransTry = indexUpdate(prev.nxTransTry, changedTansformation, transformationIndex, "transformTry", copy)
385-
nxTransThrow = indexUpdate(prev.nxTransThrow, changedTansformation, transformationIndex, "transformThrow", copy)
386-
nxTransSeqLiteral = indexUpdate(prev.nxTransSeqLiteral, changedTansformation, transformationIndex, "transformSeqLiteral", copy)
387-
nxTransTypeTree = indexUpdate(prev.nxTransTypeTree, changedTansformation, transformationIndex, "transformTypeTree", copy)
388-
nxTransSelectFromTypeTree = indexUpdate(prev.nxTransSelectFromTypeTree, changedTansformation, transformationIndex, "transformSelectFromTypeTree", copy)
389-
nxTransBind = indexUpdate(prev.nxTransBind, changedTansformation, transformationIndex, "transformBind", copy)
390-
nxTransAlternative = indexUpdate(prev.nxTransAlternative, changedTansformation, transformationIndex, "transformAlternative", copy)
391-
nxTransUnApply = indexUpdate(prev.nxTransUnApply, changedTansformation, transformationIndex, "transformUnApply", copy)
392-
nxTransValDef = indexUpdate(prev.nxTransValDef, changedTansformation, transformationIndex, "transformValDef", copy)
393-
nxTransDefDef = indexUpdate(prev.nxTransDefDef, changedTansformation, transformationIndex, "transformDefDef", copy)
394-
nxTransTypeDef = indexUpdate(prev.nxTransTypeDef, changedTansformation, transformationIndex, "transformTypeDef", copy)
395-
nxTransTemplate = indexUpdate(prev.nxTransTemplate, changedTansformation, transformationIndex, "transformTemplate", copy)
396-
nxTransPackageDef = indexUpdate(prev.nxTransPackageDef, changedTansformation, transformationIndex, "transformPackageDef", copy)
397-
nxTransStats = indexUpdate(prev.nxTransStats, changedTansformation, transformationIndex, "transformStats", copy)
398-
nxTransOther = indexUpdate(prev.nxTransOther, changedTansformation, transformationIndex, "transformOther", copy)
339+
val changedTransformationClass = changedTansformation.getClass
340+
nxPrepIdent = indexUpdate(prev.nxPrepIdent, changedTransformationClass, transformationIndex, "prepareForIdent", copy)
341+
nxPrepSelect = indexUpdate(prev.nxPrepSelect, changedTransformationClass, transformationIndex, "prepareForSelect", copy)
342+
nxPrepThis = indexUpdate(prev.nxPrepThis, changedTransformationClass, transformationIndex, "prepareForThis", copy)
343+
nxPrepSuper = indexUpdate(prev.nxPrepSuper, changedTransformationClass, transformationIndex, "prepareForSuper", copy)
344+
nxPrepApply = indexUpdate(prev.nxPrepApply, changedTransformationClass, transformationIndex, "prepareForApply", copy)
345+
nxPrepTypeApply = indexUpdate(prev.nxPrepTypeApply, changedTransformationClass, transformationIndex, "prepareForTypeApply", copy)
346+
nxPrepLiteral = indexUpdate(prev.nxPrepLiteral, changedTransformationClass, transformationIndex, "prepareForLiteral", copy)
347+
nxPrepNew = indexUpdate(prev.nxPrepNew, changedTransformationClass, transformationIndex, "prepareForNew", copy)
348+
nxPrepPair = indexUpdate(prev.nxPrepPair, changedTransformationClass, transformationIndex, "prepareForPair", copy)
349+
nxPrepTyped = indexUpdate(prev.nxPrepTyped, changedTransformationClass, transformationIndex, "prepareForTyped", copy)
350+
nxPrepAssign = indexUpdate(prev.nxPrepAssign, changedTransformationClass, transformationIndex, "prepareForAssign", copy)
351+
nxPrepBlock = indexUpdate(prev.nxPrepBlock, changedTransformationClass, transformationIndex, "prepareForBlock", copy)
352+
nxPrepIf = indexUpdate(prev.nxPrepIf, changedTransformationClass, transformationIndex, "prepareForIf", copy)
353+
nxPrepClosure = indexUpdate(prev.nxPrepClosure, changedTransformationClass, transformationIndex, "prepareForClosure", copy)
354+
nxPrepMatch = indexUpdate(prev.nxPrepMatch, changedTransformationClass, transformationIndex, "prepareForMatch", copy)
355+
nxPrepCaseDef = indexUpdate(prev.nxPrepCaseDef, changedTransformationClass, transformationIndex, "prepareForCaseDef", copy)
356+
nxPrepReturn = indexUpdate(prev.nxPrepReturn, changedTransformationClass, transformationIndex, "prepareForReturn", copy)
357+
nxPrepTry = indexUpdate(prev.nxPrepTry, changedTransformationClass, transformationIndex, "prepareForTry", copy)
358+
nxPrepThrow = indexUpdate(prev.nxPrepThrow, changedTransformationClass, transformationIndex, "prepareForThrow", copy)
359+
nxPrepSeqLiteral = indexUpdate(prev.nxPrepSeqLiteral, changedTransformationClass, transformationIndex, "prepareForSeqLiteral", copy)
360+
nxPrepTypeTree = indexUpdate(prev.nxPrepTypeTree, changedTransformationClass, transformationIndex, "prepareForTypeTree", copy)
361+
nxPrepSelectFromTypeTree = indexUpdate(prev.nxPrepSelectFromTypeTree, changedTransformationClass, transformationIndex, "prepareForSelectFromTypeTree", copy)
362+
nxPrepBind = indexUpdate(prev.nxPrepBind, changedTransformationClass, transformationIndex, "prepareForBind", copy)
363+
nxPrepAlternative = indexUpdate(prev.nxPrepAlternative, changedTransformationClass, transformationIndex, "prepareForAlternative", copy)
364+
nxPrepUnApply = indexUpdate(prev.nxPrepUnApply, changedTransformationClass, transformationIndex, "prepareForUnApply", copy)
365+
nxPrepValDef = indexUpdate(prev.nxPrepValDef, changedTransformationClass, transformationIndex, "prepareForValDef", copy)
366+
nxPrepDefDef = indexUpdate(prev.nxPrepDefDef, changedTransformationClass, transformationIndex, "prepareForDefDef", copy)
367+
nxPrepTypeDef = indexUpdate(prev.nxPrepTypeDef, changedTransformationClass, transformationIndex, "prepareForTypeDef", copy)
368+
nxPrepTemplate = indexUpdate(prev.nxPrepTemplate, changedTransformationClass, transformationIndex, "prepareForTemplate", copy)
369+
nxPrepPackageDef = indexUpdate(prev.nxPrepPackageDef, changedTransformationClass, transformationIndex, "prepareForPackageDef", copy)
370+
nxPrepStats = indexUpdate(prev.nxPrepStats, changedTransformationClass, transformationIndex, "prepareForStats", copy)
371+
372+
nxTransIdent = indexUpdate(prev.nxTransIdent, changedTransformationClass, transformationIndex, "transformIdent", copy)
373+
nxTransSelect = indexUpdate(prev.nxTransSelect, changedTransformationClass, transformationIndex, "transformSelect", copy)
374+
nxTransThis = indexUpdate(prev.nxTransThis, changedTransformationClass, transformationIndex, "transformThis", copy)
375+
nxTransSuper = indexUpdate(prev.nxTransSuper, changedTransformationClass, transformationIndex, "transformSuper", copy)
376+
nxTransApply = indexUpdate(prev.nxTransApply, changedTransformationClass, transformationIndex, "transformApply", copy)
377+
nxTransTypeApply = indexUpdate(prev.nxTransTypeApply, changedTransformationClass, transformationIndex, "transformTypeApply", copy)
378+
nxTransLiteral = indexUpdate(prev.nxTransLiteral, changedTransformationClass, transformationIndex, "transformLiteral", copy)
379+
nxTransNew = indexUpdate(prev.nxTransNew, changedTransformationClass, transformationIndex, "transformNew", copy)
380+
nxTransPair = indexUpdate(prev.nxTransPair, changedTransformationClass, transformationIndex, "transformPair", copy)
381+
nxTransTyped = indexUpdate(prev.nxTransTyped, changedTransformationClass, transformationIndex, "transformTyped", copy)
382+
nxTransAssign = indexUpdate(prev.nxTransAssign, changedTransformationClass, transformationIndex, "transformAssign", copy)
383+
nxTransBlock = indexUpdate(prev.nxTransBlock, changedTransformationClass, transformationIndex, "transformBlock", copy)
384+
nxTransIf = indexUpdate(prev.nxTransIf, changedTransformationClass, transformationIndex, "transformIf", copy)
385+
nxTransClosure = indexUpdate(prev.nxTransClosure, changedTransformationClass, transformationIndex, "transformClosure", copy)
386+
nxTransMatch = indexUpdate(prev.nxTransMatch, changedTransformationClass, transformationIndex, "transformMatch", copy)
387+
nxTransCaseDef = indexUpdate(prev.nxTransCaseDef, changedTransformationClass, transformationIndex, "transformCaseDef", copy)
388+
nxTransReturn = indexUpdate(prev.nxTransReturn, changedTransformationClass, transformationIndex, "transformReturn", copy)
389+
nxTransTry = indexUpdate(prev.nxTransTry, changedTransformationClass, transformationIndex, "transformTry", copy)
390+
nxTransThrow = indexUpdate(prev.nxTransThrow, changedTransformationClass, transformationIndex, "transformThrow", copy)
391+
nxTransSeqLiteral = indexUpdate(prev.nxTransSeqLiteral, changedTransformationClass, transformationIndex, "transformSeqLiteral", copy)
392+
nxTransTypeTree = indexUpdate(prev.nxTransTypeTree, changedTransformationClass, transformationIndex, "transformTypeTree", copy)
393+
nxTransSelectFromTypeTree = indexUpdate(prev.nxTransSelectFromTypeTree, changedTransformationClass, transformationIndex, "transformSelectFromTypeTree", copy)
394+
nxTransBind = indexUpdate(prev.nxTransBind, changedTransformationClass, transformationIndex, "transformBind", copy)
395+
nxTransAlternative = indexUpdate(prev.nxTransAlternative, changedTransformationClass, transformationIndex, "transformAlternative", copy)
396+
nxTransUnApply = indexUpdate(prev.nxTransUnApply, changedTransformationClass, transformationIndex, "transformUnApply", copy)
397+
nxTransValDef = indexUpdate(prev.nxTransValDef, changedTransformationClass, transformationIndex, "transformValDef", copy)
398+
nxTransDefDef = indexUpdate(prev.nxTransDefDef, changedTransformationClass, transformationIndex, "transformDefDef", copy)
399+
nxTransTypeDef = indexUpdate(prev.nxTransTypeDef, changedTransformationClass, transformationIndex, "transformTypeDef", copy)
400+
nxTransTemplate = indexUpdate(prev.nxTransTemplate, changedTransformationClass, transformationIndex, "transformTemplate", copy)
401+
nxTransPackageDef = indexUpdate(prev.nxTransPackageDef, changedTransformationClass, transformationIndex, "transformPackageDef", copy)
402+
nxTransStats = indexUpdate(prev.nxTransStats, changedTransformationClass, transformationIndex, "transformStats", copy)
403+
nxTransOther = indexUpdate(prev.nxTransOther, changedTransformationClass, transformationIndex, "transformOther", copy)
399404
}
400405

401406
/** Those arrays are used as "execution plan" in order to only execute non-tivial transformations\preparations

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