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Merge pull request #720 from sharwell/cache-java-templates 

Cache the Java code generation templates
This commit is contained in:
Terence Parr 2014-09-29 09:35:23 -07:00
parent b960d4b39d 88d46ee54b
commit 6c531dc429
1 changed files with 12 additions and 2 deletions
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14
tool/src/org/antlr/v4/codegen/JavaTarget.java
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@ -42,6 +42,11 @@ import java.util.Set;
public class JavaTarget extends Target {
/**
* The Java target can cache the code generation templates.
*/
private static final ThreadLocal<STGroup> targetTemplates = new ThreadLocal<STGroup>();
protected static final String[] javaKeywords = {
"abstract", "assert", "boolean", "break", "byte", "case", "catch",
"char", "class", "const", "continue", "default", "do", "double", "else",
@ -93,8 +98,13 @@ public class JavaTarget extends Target {
@Override
protected STGroup loadTemplates() {
STGroup result = super.loadTemplates();
result.registerRenderer(String.class, new JavaStringRenderer(), true);
STGroup result = targetTemplates.get();
if (result == null) {
result = super.loadTemplates();
result.registerRenderer(String.class, new JavaStringRenderer(), true);
targetTemplates.set(result);
}
return result;
}