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Added support for temporary variables

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This commit is contained in:
TomyLobo 2011-10-29 21:07:31 +02:00
parent 2719308ada
commit 77d1317964
1 changed files with 7 additions and 1 deletions
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8
src/main/java/com/sk89q/worldedit/expression/parser/Parser.java
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@ -33,6 +33,7 @@ import com.sk89q.worldedit.expression.lexer.tokens.Token;
import com.sk89q.worldedit.expression.runtime.Constant; import com.sk89q.worldedit.expression.runtime.Constant;
import com.sk89q.worldedit.expression.runtime.Functions; import com.sk89q.worldedit.expression.runtime.Functions;
import com.sk89q.worldedit.expression.runtime.RValue; import com.sk89q.worldedit.expression.runtime.RValue;
import com.sk89q.worldedit.expression.runtime.Variable;
/** /**
* Processes a list of tokens into an executable tree. * Processes a list of tokens into an executable tree.
@ -103,7 +104,12 @@ public class Parser {
} else { } else {
RValue variable = variables.get(identifierToken.value); RValue variable = variables.get(identifierToken.value);
if (variable == null) { if (variable == null) {
throw new ParserException(current.getPosition(), "Variable '" + identifierToken.value + "' not found"); if (next instanceof OperatorToken && ((OperatorToken)next).operator.equals("=")) {
// Ugly hack to make temporary variables work while not sacrificing error reporting.
variables.put(identifierToken.value, variable = new Variable(0));
} else {
throw new ParserException(current.getPosition(), "Variable '" + identifierToken.value + "' not found");
}
} }
halfProcessed.add(variable); halfProcessed.add(variable);
} }