Increase file size limit of compiler to 20 (was 2.5) megabytes (compiler will not read files larger than that)

Current IDEA api makes it possible to increase that to a higher value only by passing system property on compiler startup
2015-12-15 18:14:04 +03:00
parent 8d5d1b7dcc
commit 56cd29dff2
6 changed files with 174 additions and 28 deletions
@@ -0,0 +1,116 @@
+/*
+ * Copyright 2010-2015 JetBrains s.r.o.
+ *
+ * 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 org.jetbrains.kotlin.integration
+
+import com.intellij.openapi.util.io.FileUtil
+import org.jetbrains.kotlin.test.KotlinTestUtils
+import org.junit.Assert
+import java.io.File
+
+class CompilerFileLimitTest : CompilerSmokeTestBase() {
+    fun testLargeKotlinFile() {
+        val size = 300
+
+        val dir = tempDir("largeKotlinFileSrc")
+        val file = File(dir, "largeKotlinFile.kt")
+        file.writeText(generateLargeKotlinFile(size))
+
+        assertIsLargeButNotTooLarge(file)
+
+        runCompiler("largeKotlinFile.compile", file.absolutePath, "-d", tempDir("largeKotlinFileOut").absolutePath)
+    }
+
+    private fun generateLargeKotlinFile(size: Int): String {
+        return buildString {
+            append("package large\n\n")
+            (0..size).forEach {
+                appendln("class Class$it")
+                appendln("{")
+                appendln("\tfun foo(): Long = $it")
+                appendln("}")
+                appendln("\n")
+                repeat(2000) {
+                    appendln("// kotlin rules ... and stuff")
+                }
+            }
+            appendln("fun main(args: Array<String>)")
+            appendln("{")
+            appendln("\tval result = Class5().foo() + Class$size().foo()")
+            appendln("\tprintln(result)")
+            appendln("}")
+        }
+
+    }
+
+    fun testLargeJavaFile() {
+        val size = 300
+
+        val dir = tempDir("largeJavaFileSrc")
+        val javaDir = File(dir, "large")
+        javaDir.mkdir()
+        val javaFile = File(javaDir, "Large.java")
+        javaFile.writeText(generateLargeJavaFile(size))
+        val ktFile = File(dir, "useLargerJava.kt")
+        ktFile.writeText(generateKotlinFileThatUsesLargeJavaFile(size))
+
+        assertIsLargeButNotTooLarge(javaFile)
+
+        runCompiler("largeJavaFile.compile", dir.absolutePath, "-d", tempDir("largeJavaFileOut").absolutePath)
+    }
+
+    private fun assertIsLargeButNotTooLarge(file: File) {
+        Assert.assertTrue(file.length() > 15 * FileUtil.MEGABYTE)
+        Assert.assertTrue(file.length() < 20 * FileUtil.MEGABYTE)
+    }
+
+    private fun generateKotlinFileThatUsesLargeJavaFile(size: Int): String {
+        return buildString {
+            append("package usesLarge\n\n")
+            append("import large.Large\n\n")
+            appendln("fun main(args: Array<String>)")
+            appendln("{")
+            appendln("\tval result = Large.Class0().foo() + Large.Class$size().foo()")
+            appendln("\tprintln(result)")
+            appendln("}")
+        }
+    }
+
+    private fun generateLargeJavaFile(size: Int): String {
+        return buildString {
+            append("package large;\n\n")
+            appendln("public class Large")
+            appendln("{")
+            (0..size).forEach {
+                appendln("\tpublic static class Class$it")
+                appendln("\t{")
+                appendln("\t\tpublic long foo()")
+                appendln("\t\t{")
+                appendln("\t\t\t return $it;")
+                appendln("\t\t}")
+                appendln("\t}")
+                appendln("\n")
+                repeat(2000) {
+                    appendln("// kotlin rules ... and stuff")
+                }
+            }
+            appendln("}")
+        }
+
+    }
+
+    private fun tempDir(markerName: String) = KotlinTestUtils.tmpDir("${CompilerFileLimitTest::class.simpleName}$markerName")
+}