forked from arrow-kt/arrow-meta
-
Notifications
You must be signed in to change notification settings - Fork 0
/
IrUtils.kt
252 lines (234 loc) · 9.95 KB
/
IrUtils.kt
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
@file:OptIn(ObsoleteDescriptorBasedAPI::class)
package arrow.meta.phases.codegen.ir
import arrow.meta.internal.Noop
import arrow.meta.phases.CompilerContext
import org.jetbrains.kotlin.backend.common.extensions.IrPluginContext
import org.jetbrains.kotlin.descriptors.CallableDescriptor
import org.jetbrains.kotlin.descriptors.ClassConstructorDescriptor
import org.jetbrains.kotlin.descriptors.ClassDescriptor
import org.jetbrains.kotlin.descriptors.FunctionDescriptor
import org.jetbrains.kotlin.descriptors.PropertyDescriptor
import org.jetbrains.kotlin.ir.IrElement
import org.jetbrains.kotlin.ir.IrStatement
import org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI
import org.jetbrains.kotlin.ir.UNDEFINED_OFFSET
import org.jetbrains.kotlin.ir.declarations.IrConstructor
import org.jetbrains.kotlin.ir.declarations.IrFactory
import org.jetbrains.kotlin.ir.declarations.IrFunction
import org.jetbrains.kotlin.ir.declarations.IrModuleFragment
import org.jetbrains.kotlin.ir.declarations.IrSimpleFunction
import org.jetbrains.kotlin.ir.declarations.IrTypeParameter
import org.jetbrains.kotlin.ir.declarations.IrTypeParametersContainer
import org.jetbrains.kotlin.ir.declarations.IrValueParameter
import org.jetbrains.kotlin.ir.expressions.IrCall
import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
import org.jetbrains.kotlin.ir.expressions.IrExpression
import org.jetbrains.kotlin.ir.expressions.IrMemberAccessExpression
import org.jetbrains.kotlin.ir.expressions.impl.IrCallImpl
import org.jetbrains.kotlin.ir.expressions.impl.IrConstructorCallImpl
import org.jetbrains.kotlin.ir.expressions.impl.IrGetObjectValueImpl
import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
import org.jetbrains.kotlin.ir.types.IrType
import org.jetbrains.kotlin.ir.types.IrTypeSystemContext
import org.jetbrains.kotlin.ir.types.IrTypeSystemContextImpl
import org.jetbrains.kotlin.ir.types.defaultType
import org.jetbrains.kotlin.ir.util.ReferenceSymbolTable
import org.jetbrains.kotlin.ir.util.TypeTranslator
import org.jetbrains.kotlin.ir.util.constructors
import org.jetbrains.kotlin.ir.util.defaultType
import org.jetbrains.kotlin.ir.util.isTypeParameter
import org.jetbrains.kotlin.ir.util.parentAsClass
import org.jetbrains.kotlin.ir.util.referenceFunction
import org.jetbrains.kotlin.ir.visitors.IrElementTransformer
import org.jetbrains.kotlin.ir.visitors.IrElementVisitor
import org.jetbrains.kotlin.psi2ir.generators.TypeTranslatorImpl
import org.jetbrains.kotlin.resolve.calls.inference.components.NewTypeSubstitutorByConstructorMap
import org.jetbrains.kotlin.resolve.calls.util.FakeCallableDescriptorForObject
import org.jetbrains.kotlin.resolve.descriptorUtil.classId
import org.jetbrains.kotlin.types.KotlinType
class IrUtils(
val pluginContext: IrPluginContext,
val compilerContext: CompilerContext,
val moduleFragment: IrModuleFragment
) :
ReferenceSymbolTable by pluginContext.symbols.externalSymbolTable,
IrTypeSystemContext by IrTypeSystemContextImpl(pluginContext.irBuiltIns),
IrFactory by pluginContext.irFactory {
val typeTranslator: TypeTranslator =
TypeTranslatorImpl(
symbolTable = pluginContext.symbols.externalSymbolTable,
languageVersionSettings = pluginContext.languageVersionSettings,
moduleDescriptor = moduleFragment.descriptor
)
fun KotlinType.toIrType(): IrType = typeTranslator.translateType(this)
@OptIn(ObsoleteDescriptorBasedAPI::class)
fun CallableDescriptor.irCall(): IrExpression =
when (this) {
is PropertyDescriptor -> {
val irField =
pluginContext.symbols.externalSymbolTable.descriptorExtension.referenceField(this)
irField.owner.correspondingPropertySymbol?.owner?.getter?.symbol?.let {
irSimpleFunctionSymbol ->
IrCallImpl(
startOffset = UNDEFINED_OFFSET,
endOffset = UNDEFINED_OFFSET,
type = irSimpleFunctionSymbol.owner.returnType,
symbol = irSimpleFunctionSymbol,
typeArgumentsCount = irSimpleFunctionSymbol.owner.typeParameters.size,
valueArgumentsCount = irSimpleFunctionSymbol.owner.valueParameters.size
)
}
?: TODO("Unsupported irCall for $this")
}
is ClassConstructorDescriptor -> {
val irSymbol =
pluginContext.symbols.externalSymbolTable.descriptorExtension.referenceConstructor(this)
IrConstructorCallImpl(
startOffset = UNDEFINED_OFFSET,
endOffset = UNDEFINED_OFFSET,
type = irSymbol.owner.returnType,
symbol = irSymbol,
typeArgumentsCount = irSymbol.owner.typeParameters.size,
valueArgumentsCount = irSymbol.owner.valueParameters.size,
constructorTypeArgumentsCount = irSymbol.owner.typeParameters.size
)
}
is FunctionDescriptor -> {
val irSymbol = pluginContext.symbols.externalSymbolTable.referenceFunction(this)
IrCallImpl(
startOffset = UNDEFINED_OFFSET,
endOffset = UNDEFINED_OFFSET,
type = irSymbol.owner.returnType,
symbol = irSymbol as IrSimpleFunctionSymbol,
typeArgumentsCount = irSymbol.owner.typeParameters.size,
valueArgumentsCount = irSymbol.owner.valueParameters.size
)
}
is FakeCallableDescriptorForObject -> {
val irSymbol =
pluginContext.symbols.externalSymbolTable.descriptorExtension.referenceClass(
classDescriptor
)
IrGetObjectValueImpl(
startOffset = UNDEFINED_OFFSET,
endOffset = UNDEFINED_OFFSET,
type = irSymbol.owner.defaultType,
symbol = irSymbol
)
}
else -> {
TODO("Unsupported ir call for $this")
}
}
@OptIn(ObsoleteDescriptorBasedAPI::class)
fun PropertyDescriptor.irGetterCall(): IrCall? {
this.backingField
val irField = pluginContext.symbols.externalSymbolTable.descriptorExtension.referenceField(this)
return irField.owner.correspondingPropertySymbol?.owner?.getter?.symbol?.let {
irSimpleFunctionSymbol ->
IrCallImpl(
startOffset = UNDEFINED_OFFSET,
endOffset = UNDEFINED_OFFSET,
type = irSimpleFunctionSymbol.owner.returnType,
symbol = irSimpleFunctionSymbol,
typeArgumentsCount = irSimpleFunctionSymbol.owner.typeParameters.size,
valueArgumentsCount = irSimpleFunctionSymbol.owner.valueParameters.size
)
}
}
fun ClassDescriptor.irConstructorCall(): IrConstructorCall? {
val irClass = this.classId?.let { pluginContext.referenceClass(it) }
return irClass!!.constructors.firstOrNull()?.let { irConstructorSymbol ->
IrConstructorCallImpl(
startOffset = UNDEFINED_OFFSET,
endOffset = UNDEFINED_OFFSET,
type = irConstructorSymbol.owner.returnType,
symbol = irConstructorSymbol,
typeArgumentsCount = irConstructorSymbol.owner.typeParameters.size,
valueArgumentsCount = irConstructorSymbol.owner.valueParameters.size,
constructorTypeArgumentsCount = declaredTypeParameters.size
)
}
}
fun CallableDescriptor.substitutedIrTypes(
typeSubstitutor: NewTypeSubstitutorByConstructorMap
): List<IrType?> =
typeParameters.mapIndexed { _, typeParamDescriptor ->
val newType =
typeSubstitutor.map.entries.find {
it.key.toString() == typeParamDescriptor.defaultType.toString()
}
newType?.value?.toIrType()
}
fun <A> IrFunction.transform(data: A, f: IrFunction.(a: A) -> Unit = Noop.effect2): IrStatement =
transform(
object : IrElementTransformer<A> {
override fun visitFunction(declaration: IrFunction, data: A): IrStatement {
f(declaration, data)
return super.visitFunction(declaration, data)
}
},
data
)
as IrStatement
}
inline fun <reified E, B> IrElement.filterMap(
crossinline filter: (E) -> Boolean,
crossinline map: (E) -> B
): List<B> {
val els = arrayListOf<B>()
val visitor =
object : IrElementVisitor<Unit, Unit> {
override fun visitElement(element: IrElement, data: Unit) {
if (element is E && filter(element)) {
els.add(map(element))
}
element.acceptChildren(this, Unit)
}
}
acceptChildren(visitor, Unit)
return els
}
/** returns the index and the value argument */
val IrCall.valueArguments: List<Pair<Int, IrExpression?>>
get() {
val args = arrayListOf<Pair<Int, IrExpression?>>()
for (i in 0 until valueArgumentsCount) {
args.add(i to getValueArgument(i))
}
return args.toList()
}
/** returns the index and the type argument */
val IrCall.typeArguments: List<Pair<Int, IrType?>>
get() {
val args = arrayListOf<Pair<Int, IrType?>>()
for (i in 0 until typeArgumentsCount) {
args.add(i to getTypeArgument(i))
}
return args.toList()
}
val IrCall.substitutedValueParameters: List<Pair<IrValueParameter, IrType?>>
get() = symbol.owner.substitutedValueParameters(this)
val IrTypeParametersContainer.allTypeParameters: List<IrTypeParameter>
get() =
if (this is IrConstructor) parentAsClass.typeParameters + typeParameters else typeParameters
fun IrMemberAccessExpression<*>.getTypeSubstitutionMap(
container: IrTypeParametersContainer
): Map<IrTypeParameter, IrType> =
container.allTypeParameters.withIndex().associate { it.value to getTypeArgument(it.index)!! }
val IrMemberAccessExpression<*>.typeSubstitutions: Map<IrTypeParameter, IrType>
get() = (symbol.owner as? IrTypeParametersContainer)?.let(::getTypeSubstitutionMap) ?: emptyMap()
/** returns a Pair of the descriptor and it's substituted KotlinType at the call-site */
private fun IrSimpleFunction.substitutedValueParameters(
call: IrCall
): List<Pair<IrValueParameter, IrType?>> =
valueParameters.map {
val type = it.type
it to
(type.takeIf { t -> !t.isTypeParameter() }
?: typeParameters
.firstOrNull { typeParam -> typeParam.defaultType == type }
?.let { typeParam -> call.getTypeArgument(typeParam.index) }
?: type // Could not resolve the substituted KotlinType
)
}