com.squareup.sqldelight.model.SqlStmt.kt Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of compiler Show documentation

Common code shared between the Gradle and IntelliJ plugin

There is a newer version: 0.9.0

/*
 * Copyright (C) 2016 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.squareup.sqldelight.model

import com.squareup.sqldelight.SqliteCompiler
import com.squareup.sqldelight.SqliteParser
import org.antlr.v4.runtime.ParserRuleContext
import org.antlr.v4.runtime.misc.Interval

fun ParserRuleContext.textWithWhitespace(): String {
  return if (start == null || stop == null || start.startIndex < 0 || stop.stopIndex < 0) text
  else start.inputStream.getText(Interval(start.startIndex, stop.stopIndex))
}

internal val SqliteParser.Sql_stmtContext.identifier: String
  get() = SqliteCompiler.constantName(sql_stmt_name().text)

internal fun SqliteParser.Sql_stmtContext.body() = getChild(childCount - 1) as ParserRuleContext

internal fun ParserRuleContext.sqliteText(): String {
  val text = textWithWhitespace()
  var nextOffset = 0
  return replacements()
      .fold(StringBuilder(), { builder, replacement ->
        builder.append(text.subSequence(nextOffset, replacement.startOffset - start.startIndex))
            .append(replacement.replacementText)
        nextOffset = replacement.endOffset - start.startIndex
        builder
      })
      .append(text.substring(nextOffset, text.length))
      .toString()
}

private fun ParserRuleContext.replacements(): Collection {
  if (this is SqliteParser.Type_nameContext) {
    return listOf(Replacement(start.startIndex, stop.stopIndex + 1,
        (parent as SqliteParser.Column_defContext).type.name))
  }
  if (children == null) return emptyList()
  return children.filterIsInstance().flatMap { it.replacements() }.toList()
}

private class Replacement(val startOffset: Int, val endOffset: Int, val replacementText: String)