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JS: fix crash on some JavaScript constructs in hand-written runtime code

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This commit is contained in:
Alexey Andreev 2019-09-30 18:36:05 +03:00
parent 3b170df2ca
commit 810ee0f49e
1 changed files with 9 additions and 1 deletions
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8
core/src/main/java/org/teavm/backend/javascript/rendering/AstVisitor.java
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@ -29,6 +29,7 @@ import org.mozilla.javascript.ast.ConditionalExpression;
import org.mozilla.javascript.ast.ContinueStatement; import org.mozilla.javascript.ast.ContinueStatement;
import org.mozilla.javascript.ast.DoLoop; import org.mozilla.javascript.ast.DoLoop;
import org.mozilla.javascript.ast.ElementGet; import org.mozilla.javascript.ast.ElementGet;
import org.mozilla.javascript.ast.EmptyExpression;
import org.mozilla.javascript.ast.EmptyStatement; import org.mozilla.javascript.ast.EmptyStatement;
import org.mozilla.javascript.ast.ExpressionStatement; import org.mozilla.javascript.ast.ExpressionStatement;
import org.mozilla.javascript.ast.ForInLoop; import org.mozilla.javascript.ast.ForInLoop;
@ -133,7 +134,11 @@ public class AstVisitor {
visitParenthesized((ParenthesizedExpression) node); visitParenthesized((ParenthesizedExpression) node);
break; break;
case Token.EMPTY: case Token.EMPTY:
if (node instanceof EmptyStatement) {
visitEmpty((EmptyStatement) node); visitEmpty((EmptyStatement) node);
} else {
visitEmpty((EmptyExpression) node);
}
break; break;
case Token.EXPR_VOID: case Token.EXPR_VOID:
case Token.EXPR_RESULT: case Token.EXPR_RESULT:
@ -377,6 +382,9 @@ public class AstVisitor {
protected void visitEmpty(EmptyStatement node) { protected void visitEmpty(EmptyStatement node) {
} }
protected void visitEmpty(EmptyExpression node) {
}
protected void visitName(Name node) { protected void visitName(Name node) {
} }