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JS: load metadata optimization in KotlinJavascriptMetadataUtils

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This commit is contained in:
Michael Nedzelsky
2015-03-28 12:03:15 +03:00
parent 563ab47502
commit 6d8fc1e035
1 changed files with 4 additions and 0 deletions
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compiler/util/src/org/jetbrains/kotlin/utils/KotlinJavascriptMetadataUtils.kt
+4
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@@ -31,6 +31,7 @@ public object KotlinJavascriptMetadataUtils {
public val JS_EXT: String = ".js"
private val KOTLIN_JAVASCRIPT_METHOD_NAME = "kotlin_module_metadata"
private val KOTLIN_JAVASCRIPT_METHOD_NAME_PATTERN = "\\.kotlin_module_metadata\\(".toRegex()
/**
* Matches string like <name>.kotlin_module_metadata(<abi version>, <module name>, <base64 data>)
*/
@@ -68,6 +69,9 @@ public object KotlinJavascriptMetadataUtils {
public fun loadMetadata(path: String): List<KotlinJavascriptMetadata> = loadMetadata(File(path))
private fun parseMetadata(text: String, path: String, metadataList: MutableList<KotlinJavascriptMetadata>) {
// Check for literal pattern first in order to reduce time for large files without metadata
if (!KOTLIN_JAVASCRIPT_METHOD_NAME_PATTERN.matcher(text).find()) return
val matcher = METADATA_PATTERN.matcher(text)
while (matcher.find()) {
var abiVersion = Integer.parseInt(matcher.group(1));