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Refactor spacing rules representation for easier debugging

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This commit is contained in:
Dmitry Jemerov
2017-06-12 16:06:40 +02:00
parent a0b5a3a8a2
commit 2ce430d608
1 changed files with 27 additions and 12 deletions
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idea/formatter/src/org/jetbrains/kotlin/idea/formatter/KotlinSpacingBuilder.kt
+27 -12
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@@ -42,9 +42,32 @@ class KotlinSpacingBuilder(val commonCodeStyleSettings: CommonCodeStyleSettings,
}
}
private data class Condition(
val parent: IElementType? = null,
val left: IElementType? = null,
val right: IElementType? = null,
val parentSet: TokenSet? = null,
val leftSet: TokenSet? = null,
val rightSet: TokenSet? = null
) : (ASTBlock, ASTBlock, ASTBlock) -> Boolean {
override fun invoke(p: ASTBlock, l: ASTBlock, r: ASTBlock): Boolean =
(parent == null || p.node!!.elementType == parent) &&
(left == null || l.node!!.elementType == left) &&
(right == null || r.node!!.elementType == right) &&
(parentSet == null || parentSet.contains(p.node!!.elementType)) &&
(leftSet == null || leftSet.contains(l.node!!.elementType)) &&
(rightSet == null || rightSet.contains(r.node!!.elementType))
}
private data class Rule(val conditions: List<Condition>,
val action: (ASTBlock, ASTBlock, ASTBlock) -> Spacing?) : (ASTBlock, ASTBlock, ASTBlock) -> Spacing? {
override fun invoke(p: ASTBlock, l: ASTBlock, r: ASTBlock): Spacing? =
if (conditions.all { it(p, l, r) }) action(p, l, r) else null
}
inner class CustomSpacingBuilder : Builder {
private val rules = ArrayList<(ASTBlock, ASTBlock, ASTBlock) -> Spacing?>()
private var conditions = ArrayList<(ASTBlock, ASTBlock, ASTBlock) -> Boolean>()
private val rules = ArrayList<Rule>()
private var conditions = ArrayList<Condition>()
override fun getSpacing(parent: ASTBlock, left: ASTBlock, right: ASTBlock): Spacing? {
for (rule in rules) {
@@ -58,15 +81,7 @@ class KotlinSpacingBuilder(val commonCodeStyleSettings: CommonCodeStyleSettings,
fun inPosition(parent: IElementType? = null, left: IElementType? = null, right: IElementType? = null,
parentSet: TokenSet? = null, leftSet: TokenSet? = null, rightSet: TokenSet? = null): CustomSpacingBuilder {
conditions.add {
p, l, r ->
(parent == null || p.node!!.elementType == parent) &&
(left == null || l.node!!.elementType == left) &&
(right == null || r.node!!.elementType == right) &&
(parentSet == null || parentSet.contains(p.node!!.elementType)) &&
(leftSet == null || leftSet.contains(l.node!!.elementType)) &&
(rightSet == null || rightSet.contains(r.node!!.elementType))
}
conditions.add(Condition(parent, left, right, parentSet, leftSet, rightSet))
return this
}
@@ -103,7 +118,7 @@ class KotlinSpacingBuilder(val commonCodeStyleSettings: CommonCodeStyleSettings,
private fun newRule(rule: (ASTBlock, ASTBlock, ASTBlock) -> Spacing?) {
val savedConditions = ArrayList(conditions)
rules.add { p, l, r -> if (savedConditions.all { it(p, l, r) }) rule(p, l, r) else null }
rules.add(Rule(savedConditions, rule))
conditions.clear()
}
}