Examples with LiteralExpression com.googlecode.aviator.LiteralExpression used on opensource projects

Example 1 with LiteralExpression

use of com.googlecode.aviator.LiteralExpression in project aviatorscript by killme2008.

the class OptimizeCodeGenerator method getResult.

@Override
public Expression getResult(final boolean unboxObject) {
    // execute literal expression
    while (execute() > 0) {
        ;
    }
    Map<String, VariableMeta> /* metadata */
    variables = new LinkedHashMap<String, VariableMeta>();
    Map<String, Integer> /* counter */
    methods = new HashMap<String, Integer>();
    Set<Token<?>> constants = new HashSet<>();
    for (Token<?> token : this.tokenList) {
        if (ExpressionParser.isConstant(token, this.instance)) {
            constants.add(token);
        }
        switch(token.getType()) {
            case Variable:
                if (SymbolTable.isReservedKeyword((Variable) token)) {
                    continue;
                }
                String varName = token.getLexeme();
                VariableMeta meta = variables.get(varName);
                if (meta == null) {
                    meta = new VariableMeta((CompileTypes) token.getMeta(Constants.TYPE_META), varName, token.getMeta(Constants.INIT_META, false), token.getStartIndex());
                    variables.put(varName, meta);
                } else {
                    meta.add(token);
                }
                break;
            case Delegate:
                DelegateToken delegateToken = (DelegateToken) token;
                if (delegateToken.getDelegateTokenType() == DelegateTokenType.Method_Name) {
                    Token<?> realToken = delegateToken.getToken();
                    if (realToken == null) {
                        continue;
                    }
                    if (realToken.getType() == TokenType.Variable) {
                        String methodName = token.getLexeme();
                        if (!methods.containsKey(methodName)) {
                            methods.put(methodName, 1);
                        } else {
                            methods.put(methodName, methods.get(methodName) + 1);
                        }
                    }
                } else if (delegateToken.getDelegateTokenType() == DelegateTokenType.Array) {
                    Token<?> realToken = delegateToken.getToken();
                    if (realToken.getType() == TokenType.Variable) {
                        varName = token.getLexeme();
                        VariableMeta varMeta = variables.get(varName);
                        if (varMeta == null) {
                            varMeta = new VariableMeta((CompileTypes) realToken.getMeta(Constants.TYPE_META), varName, realToken.getMeta(Constants.INIT_META, false), realToken.getStartIndex());
                            variables.put(varName, varMeta);
                        } else {
                            varMeta.add(realToken);
                        }
                    }
                }
                break;
        }
    }
    Expression exp = null;
    // Last token is a literal token,then return a LiteralExpression
    if (this.tokenList.size() <= 1) {
        if (this.tokenList.isEmpty()) {
            exp = new LiteralExpression(this.instance, null, new ArrayList<>(variables.values()));
        } else {
            final Token<?> lastToken = this.tokenList.get(0);
            if (ExpressionParser.isLiteralToken(lastToken, this.instance)) {
                exp = new LiteralExpression(this.instance, getAviatorObjectFromToken(lastToken).getValue(getCompileEnv()), new ArrayList<>(variables.values()));
            }
        }
    }
    if (exp == null) {
        // call asm to generate byte codes
        callASM(variables, methods, constants);
        // get result from asm
        exp = this.codeGen.getResult(unboxObject);
    }
    if (exp instanceof BaseExpression) {
        ((BaseExpression) exp).setCompileEnv(getCompileEnv());
        ((BaseExpression) exp).setSourceFile(this.sourceFile);
    }
    return exp;
}