com.sun.tools.javac.tree.JCTree.LetExpr Java Examples

The following examples show how to use com.sun.tools.javac.tree.JCTree.LetExpr. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: CRTable.java    From lua-for-android with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
@Override
public void visitLetExpr(LetExpr tree) {
    SourceRange sr = new SourceRange(startPos(tree), endPos(tree));
    sr.mergeWith(csp(tree.defs));
    sr.mergeWith(csp(tree.expr));
    result = sr;
}
Example #2
Source File: Lower.java    From lua-for-android with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
/** Construct an expression using the builder, with the given rval
 *  expression as an argument to the builder.  However, the rval
 *  expression must be computed only once, even if used multiple
 *  times in the result of the builder.  We do that by
 *  constructing a "let" expression that saves the rvalue into a
 *  temporary variable and then uses the temporary variable in
 *  place of the expression built by the builder.  The complete
 *  resulting expression is of the form
 *  <pre>
 *    (let <b>TYPE</b> <b>TEMP</b> = <b>RVAL</b>;
 *     in (<b>BUILDER</b>(<b>TEMP</b>)))
 *  </pre>
 *  where <code><b>TEMP</b></code> is a newly declared variable
 *  in the let expression.
 */
JCExpression abstractRval(JCExpression rval, Type type, TreeBuilder builder) {
    rval = TreeInfo.skipParens(rval);
    switch (rval.getTag()) {
    case LITERAL:
        return builder.build(rval);
    case IDENT:
        JCIdent id = (JCIdent) rval;
        if ((id.sym.flags() & FINAL) != 0 && id.sym.owner.kind == MTH)
            return builder.build(rval);
    }
    Name name = TreeInfo.name(rval);
    if (name == names._super || name == names._this)
        return builder.build(rval);
    VarSymbol var =
        new VarSymbol(FINAL|SYNTHETIC,
                      names.fromString(
                                      target.syntheticNameChar()
                                      + "" + rval.hashCode()),
                                  type,
                                  currentMethodSym);
    rval = convert(rval,type);
    JCVariableDecl def = make.VarDef(var, rval); // XXX cast
    JCExpression built = builder.build(make.Ident(var));
    JCExpression res = make.LetExpr(def, built);
    res.type = built.type;
    return res;
}
Example #3
Source File: PrettyCommentsPrinter.java    From EasyMPermission with MIT License 5 votes vote down vote up 
public void visitLetExpr(LetExpr tree) {
	try {
		print("(let " + tree.defs + " in " + tree.expr + ")");
	} catch (IOException e) {
		throw new UncheckedIOException(e);
	}
}
Example #4
Source File: Lower.java    From lua-for-android with BSD 3-Clause "New" or "Revised" License 4 votes vote down vote up 
public void visitLetExpr(LetExpr tree) {
    tree.defs = translateVarDefs(tree.defs);
    tree.expr = translate(tree.expr, tree.type);
    result = tree;
}
Example #5
Source File: JavacTreeMaker.java    From EasyMPermission with MIT License 4 votes vote down vote up 
public LetExpr LetExpr(List<JCVariableDecl> defs, JCTree expr) {
	return invoke(LetExpr, defs, expr);
}
Example #6
Source File: JavacTreeMaker.java    From EasyMPermission with MIT License 4 votes vote down vote up 
public LetExpr LetExpr(JCVariableDecl def, JCTree expr) {
	return invoke(LetExprSingle, def, expr);
}