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Ports v0.14.9 changes #1702
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Ports v0.14.9 changes #1702
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122 changes: 122 additions & 0 deletions
122
partiql-planner/src/main/kotlin/org/partiql/planner/internal/typer/ExcludeUtils.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,122 @@ | ||
| package org.partiql.planner.internal.typer | ||
|
|
||
| import org.partiql.planner.internal.PErrors | ||
| import org.partiql.planner.internal.ir.Rel | ||
| import org.partiql.planner.internal.ir.Rex | ||
| import org.partiql.spi.catalog.Identifier | ||
| import org.partiql.spi.errors.PErrorListener | ||
| import org.partiql.types.PType | ||
|
|
||
| internal object ExcludeUtils { | ||
| /** | ||
| * Checks for every exclude path in [paths], that a value in the [bindings] is excluded. If there is no value excluded, | ||
| * a warning is added to the [onProblem] callback. | ||
| */ | ||
| internal fun checkForInvalidExcludePaths(bindings: List<Rel.Binding>, paths: List<Rel.Op.Exclude.Path>, onProblem: PErrorListener) { | ||
| paths.forEach { excludePath -> | ||
| val root = excludePath.root | ||
| val steps = excludePath.steps | ||
| val excludesSomething = bindings.any { binding -> | ||
| when (root) { | ||
| is Rex.Op.Var.Unresolved -> { | ||
| if (root.identifier.first().matches(binding.name)) { | ||
| binding.type.checkExclude(steps) | ||
| } else { | ||
| false | ||
| } | ||
| } | ||
| else -> false // root should be unresolved | ||
| } | ||
| } | ||
| // If nothing is excluded by `excludePath`, add a warning | ||
| if (!excludesSomething) { | ||
| onProblem.report(PErrors.invalidExcludePath(excludePath.toProblemString())) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Checks whether [steps] will exclude a value from [this]. | ||
| */ | ||
| private fun PType.checkExclude(steps: List<Rel.Op.Exclude.Step>): Boolean { | ||
| return when (this.code()) { | ||
| PType.ROW -> this.checkRowExclude(steps) | ||
| PType.ARRAY, PType.BAG -> this.checkCollectionExclude(steps) | ||
| PType.DYNAMIC, PType.VARIANT -> true | ||
| else -> steps.isEmpty() | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Checks whether [steps] will exclude a value from [this] [PType.ROW]. | ||
| */ | ||
| private fun PType.checkRowExclude(steps: List<Rel.Op.Exclude.Step>): Boolean { | ||
| // Ignore open structs | ||
| if (steps.isEmpty()) { | ||
| return true | ||
| } | ||
| return steps.all { step -> | ||
| fields.any { field -> | ||
| when (val type = step.type) { | ||
| is Rel.Op.Exclude.Type.StructSymbol -> { | ||
| Identifier.regular(type.symbol).first().matches(field.name) && field.type.checkExclude(step.substeps) | ||
| } | ||
| is Rel.Op.Exclude.Type.StructKey -> { | ||
| type.key == field.name && field.type.checkExclude(step.substeps) | ||
| } | ||
| is Rel.Op.Exclude.Type.StructWildcard -> field.type.checkExclude(step.substeps) | ||
| else -> false | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Checks whether [steps] will exclude a value from [this] [PType.BAG]/[PType.ARRAY]. | ||
| */ | ||
| private fun PType.checkCollectionExclude(steps: List<Rel.Op.Exclude.Step>): Boolean { | ||
| if (steps.isEmpty()) { | ||
| return true | ||
| } | ||
| return steps.all { step -> | ||
| when (step.type) { | ||
| is Rel.Op.Exclude.Type.CollIndex, is Rel.Op.Exclude.Type.CollWildcard -> { | ||
| val e = this.typeParameter | ||
| e.checkExclude(step.substeps) | ||
| } | ||
| else -> false | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // `EXCLUDE` path printing functions for problem printing | ||
| private fun Rel.Op.Exclude.Path.toProblemString(): String { | ||
| val root = when (root) { | ||
| is Rex.Op.Var.Unresolved -> root.identifier.toProblemString() | ||
| is Rex.Op.Var.Local -> root.ref.toString() | ||
| is Rex.Op.Var.Global -> root.ref.toString() | ||
| else -> error("This isn't supported.") | ||
| } | ||
| val steps = steps.map { | ||
| when (val type = it.type) { | ||
| is Rel.Op.Exclude.Type.CollIndex -> "[${type.index}]" | ||
| is Rel.Op.Exclude.Type.CollWildcard -> "[*]" | ||
| is Rel.Op.Exclude.Type.StructSymbol -> ".${type.symbol}" | ||
| is Rel.Op.Exclude.Type.StructKey -> ".\"${type.key}\"" | ||
| is Rel.Op.Exclude.Type.StructWildcard -> ".*" | ||
| } | ||
| } | ||
| return root + steps.joinToString(separator = "") | ||
| } | ||
|
|
||
| private fun Identifier.toProblemString(): String { | ||
| return this.joinToString("") { it.toProblemString() } | ||
| } | ||
|
|
||
| private fun Identifier.Simple.toProblemString(): String { | ||
| return when (this.isRegular()) { | ||
| false -> "\"${getText()}\"" | ||
| true -> getText() | ||
| } | ||
| } | ||
| } |
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Probably we can leave out the CHANGELOG changes from the cherry-pick?