com.oracle.truffle.sl.nodes.instrument.SLStandardASTProber Maven / Gradle / Ivy
Show all versions of truffle-sl Show documentation
/*
* Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* The Universal Permissive License (UPL), Version 1.0
*
* Subject to the condition set forth below, permission is hereby granted to any
* person obtaining a copy of this software, associated documentation and/or
* data (collectively the "Software"), free of charge and under any and all
* copyright rights in the Software, and any and all patent rights owned or
* freely licensable by each licensor hereunder covering either (i) the
* unmodified Software as contributed to or provided by such licensor, or (ii)
* the Larger Works (as defined below), to deal in both
*
* (a) the Software, and
*
* (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
* one is included with the Software each a "Larger Work" to which the Software
* is contributed by such licensors),
*
* without restriction, including without limitation the rights to copy, create
* derivative works of, display, perform, and distribute the Software and make,
* use, sell, offer for sale, import, export, have made, and have sold the
* Software and the Larger Work(s), and to sublicense the foregoing rights on
* either these or other terms.
*
* This license is subject to the following condition:
*
* The above copyright notice and either this complete permission notice or at a
* minimum a reference to the UPL must be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.oracle.truffle.sl.nodes.instrument;
import static com.oracle.truffle.api.instrument.StandardSyntaxTag.*;
import com.oracle.truffle.api.instrument.*;
import com.oracle.truffle.api.nodes.*;
import com.oracle.truffle.sl.nodes.*;
import com.oracle.truffle.sl.nodes.controlflow.*;
import com.oracle.truffle.sl.nodes.local.*;
/**
* A visitor which traverses a completely parsed Simple AST (presumed not yet executed) and enables
* instrumentation at a few standard kinds of nodes.
*/
public class SLStandardASTProber implements NodeVisitor, ASTProber {
/**
* {@inheritDoc}
*
* Instruments and tags all relevant {@link SLStatementNode}s and {@link SLExpressionNode}s.
* Currently, only SLStatementNodes that are not SLExpressionNodes are tagged as statements.
*/
public boolean visit(Node node) {
if (!(node instanceof InstrumentationNode) && node instanceof SLStatementNode && node.getParent() != null && node.getSourceSection() != null) {
// All SL nodes are instrumentable, but treat expressions specially
if (node instanceof SLExpressionNode) {
SLExpressionNode expressionNode = (SLExpressionNode) node;
Probe probe = expressionNode.probe();
if (node instanceof SLWriteLocalVariableNode) {
probe.tagAs(STATEMENT, null);
probe.tagAs(ASSIGNMENT, null);
}
} else {
SLStatementNode statementNode = (SLStatementNode) node;
Probe probe = statementNode.probe();
probe.tagAs(STATEMENT, null);
if (node instanceof SLWhileNode) {
probe.tagAs(START_LOOP, null);
}
}
}
return true;
}
public void probeAST(Node node) {
node.accept(this);
}
}