org.jetbrains.kotlin.wasm.ir.WasmIrExpressionBuilder.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.wasm.ir
class WasmIrExpressionBuilder(
val expression: MutableList
) : WasmExpressionBuilder() {
override fun buildInstr(op: WasmOp, vararg immediates: WasmImmediate) {
val nextInstr = WasmInstr(op, immediates.toList())
val foldedInstrs = foldWasmInstructions(expression.lastOrNull(), nextInstr)
if (foldedInstrs == null) {
expression += nextInstr
} else {
expression.removeLastOrNull()
expression += foldedInstrs
}
}
override var numberOfNestedBlocks: Int = 0
set(value) {
assert(value >= 0) { "end without matching block" }
field = value
}
}
inline fun buildWasmExpression(body: WasmExpressionBuilder.() -> Unit): MutableList {
val res = mutableListOf()
WasmIrExpressionBuilder(res).body()
return res
}