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Prevent leaving unparsed tokens ignored, throwing error instead.

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This commit is contained in:
Danila Fedorin 2017-08-05 16:01:08 -07:00
parent a6832e09f4
commit a984f2960d
1 changed files with 2 additions and 1 deletions
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src/main/java/org/nwapw/abacus/parsing/ShuntingYardParser.java
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@ -164,7 +164,8 @@ public class ShuntingYardParser implements Parser<Match<TokenType>>, PluginListe
tokens = intoPostfix(new ArrayList<>(tokens)); tokens = intoPostfix(new ArrayList<>(tokens));
if(tokens == null) return null; if(tokens == null) return null;
Collections.reverse(tokens); Collections.reverse(tokens);
return constructRecursive(tokens); TreeNode constructedTree = constructRecursive(tokens);
return tokens.size() == 0 ? constructedTree : null;
} }
@Override @Override