Examples with SourceSection com.oracle.truffle.api.source.SourceSection used on opensource projects

Example 66 with SourceSection

use of com.oracle.truffle.api.source.SourceSection in project sulong by graalvm.

the class DIScopeBuilder method buildSection.

private SourceSection buildSection(MDFile file, long startLine, long startCol) {
    if (file == null) {
        return null;
    }
    final Source source = asSource(file);
    if (source == null) {
        return null;
    }
    final int line = (int) startLine;
    final int col = (int) startCol;
    SourceSection section;
    try {
        if (line <= 0) {
            // this happens e.g. for functions implicitly generated by llvm in section
            // '.text.startup'
            section = source.createSection(1);
        } else if (col <= 0) {
            // columns in llvm 3.2 metadata are usually always 0
            section = source.createSection(line);
        } else {
            section = source.createSection(line, col, 0);
        }
    } catch (Throwable ignored) {
        // if the source file has changed since it was last compiled the line and column
        // information in the metadata might not be accurate anymore
        section = null;
    }
    return section;
}

Example 67 with SourceSection

use of com.oracle.truffle.api.source.SourceSection in project sulong by graalvm.

the class DebugInfoFunctionProcessor method initSourceFunction.

private void initSourceFunction(FunctionDefinition function, Source bitcodeSource) {
    final MDBaseNode debugInfo = getDebugInfo(function);
    LLVMSourceLocation scope = null;
    LLVMSourceFunctionType type = null;
    if (debugInfo != null) {
        scope = cache.buildLocation(debugInfo);
        LLVMSourceType actualType = cache.parseType(debugInfo);
        if (actualType instanceof LLVMSourceFunctionType) {
            type = (LLVMSourceFunctionType) actualType;
        }
    }
    if (scope == null) {
        final String sourceText = String.format("%s:%s", bitcodeSource.getName(), function.getName());
        final Source irSource = Source.newBuilder(sourceText).mimeType(DIScopeBuilder.getMimeType(null)).name(sourceText).build();
        final SourceSection simpleSection = irSource.createSection(1);
        scope = LLVMSourceLocation.createBitcodeFunction(function.getName(), simpleSection);
    }
    final SourceFunction sourceFunction = new SourceFunction(scope, type);
    function.setSourceFunction(sourceFunction);
    for (SourceVariable local : sourceFunction.getVariables()) {
        local.processFragments();
    }
}

Example 68 with SourceSection

use of com.oracle.truffle.api.source.SourceSection in project sulong by graalvm.

the class LLVMSourceScope method create.

@TruffleBoundary
public static Iterable<Scope> create(Node node, Frame frame, LLVMContext context) {
    final LLVMSourceContext sourceContext = context.getSourceContext();
    final RootNode rootNode = node.getRootNode();
    LLVMNode llvmNode = findStatementNode(node);
    if (rootNode == null || llvmNode == null) {
        return Collections.singleton(new LLVMSourceScope(sourceContext, node).toScope(frame));
    }
    LLVMSourceLocation scope = llvmNode.getSourceLocation();
    final SourceSection sourceSection = llvmNode.getSourceSection();
    LLVMSourceScope baseScope = new LLVMSourceScope(sourceContext, new LinkedList<>(), rootNode);
    LLVMSourceScope staticScope = null;
    for (boolean isLocalScope = true; isLocalScope && scope != null; scope = scope.getParent()) {
        final LLVMSourceScope next = toScope(scope, sourceContext, rootNode, sourceSection);
        copySymbols(next, baseScope);
        if (scope.getKind() == LLVMSourceLocation.Kind.FUNCTION) {
            baseScope.setName(next.getName());
            if (scope.getCompileUnit() != null) {
                staticScope = toScope(scope.getCompileUnit(), sourceContext, null, sourceSection);
            }
            isLocalScope = false;
        }
    }
    List<Scope> scopeList = new ArrayList<>();
    scopeList.add(baseScope.toScope(frame));
    for (; scope != null; scope = scope.getParent()) {
        // e.g. lambdas are compiled to calls to a method in a locally defined class. We
        // cannot access the locals of the enclosing function since they do not lie on the
        // function's frame. They are still accessible from the calling function's frame, so
        // we can simply ignore this scope here. Also, any variables actually used in the
        // lambda would still be available as the members of the 'this' pointer.
        final LLVMSourceScope next = toScope(scope, sourceContext, null, sourceSection);
        switch(scope.getKind()) {
            case NAMESPACE:
            case FILE:
            case BLOCK:
                if (next.hasSymbols()) {
                    scopeList.add(next.toScope(frame));
                }
                break;
            case COMPILEUNIT:
                if (staticScope == null) {
                    staticScope = next;
                } else {
                    copySymbols(next, staticScope);
                }
                break;
        }
    }
    if (staticScope != null && staticScope.hasSymbols()) {
        scopeList.add(staticScope.toScope(frame));
    }
    return Collections.unmodifiableList(scopeList);
}