Examples with MDDerivedType com.oracle.truffle.llvm.parser.metadata.MDDerivedType used on opensource projects

Example 1 with MDDerivedType

use of com.oracle.truffle.llvm.parser.metadata.MDDerivedType in project sulong by graalvm.

the class DITypeExtractor method visit.

@Override
public void visit(MDDerivedType mdType) {
    final long size = mdType.getSize();
    final long align = mdType.getAlign();
    final long offset = mdType.getOffset();
    final LLVMSourceLocation location = scopeBuilder.buildLocation(mdType);
    switch(mdType.getTag()) {
        case DW_TAG_MEMBER:
            {
                if (Flags.ARTIFICIAL.isAllFlags(mdType.getFlags())) {
                    parsedTypes.put(mdType, LLVMSourceType.VOID);
                    break;
                }
                final String name = MDNameExtractor.getName(mdType.getName());
                if (Flags.STATIC_MEMBER.isSetIn(mdType.getFlags())) {
                    final LLVMSourceStaticMemberType type = new LLVMSourceStaticMemberType(name, size, align, location);
                    parsedTypes.put(mdType, type);
                    final LLVMSourceType baseType = resolve(mdType.getBaseType());
                    type.setElementType(baseType);
                    if (mdType.getExtraData() instanceof MDValue) {
                        staticMembers.put(type, ((MDValue) mdType.getExtraData()).getValue());
                    }
                    break;
                }
                final LLVMSourceMemberType type = new LLVMSourceMemberType(name, size, align, offset, location);
                parsedTypes.put(mdType, type);
                LLVMSourceType baseType = resolve(mdType.getBaseType());
                if (Flags.BITFIELD.isSetIn(mdType.getFlags()) || (baseType != UNKNOWN && baseType.getSize() != size)) {
                    final LLVMSourceDecoratorType decorator = new LLVMSourceDecoratorType(size, align, offset, Function.identity(), location);
                    decorator.setBaseType(baseType);
                    baseType = decorator;
                }
                type.setElementType(baseType);
                break;
            }
        case DW_TAG_REFERENCE_TYPE:
        case DW_TAG_POINTER_TYPE:
            {
                final boolean isSafeToDereference = Flags.OBJECT_POINTER.isSetIn(mdType.getFlags());
                final boolean isReference = mdType.getTag() == MDType.DwarfTag.DW_TAG_REFERENCE_TYPE;
                final LLVMSourcePointerType type = new LLVMSourcePointerType(size, align, offset, isSafeToDereference, isReference, location);
                parsedTypes.put(mdType, type);
                // LLVM does not specify a void type, if this is indicated, the reference is simply
                // null
                final LLVMSourceType baseType = resolve(mdType.getBaseType(), LLVMSourceType.VOID);
                type.setBaseType(baseType);
                type.setName(() -> {
                    final String baseName = baseType.getName();
                    final String sym = isReference ? " &" : "*";
                    if (!baseType.isPointer() && baseName.contains(" ")) {
                        return String.format("(%s)%s", baseName, sym);
                    } else {
                        return String.format("%s%s", baseName, sym);
                    }
                });
                break;
            }
        case DW_TAG_TYPEDEF:
        case DW_TAG_VOLATILE_TYPE:
        case DW_TAG_CONST_TYPE:
            {
                final Function<String, String> decorator;
                switch(mdType.getTag()) {
                    case DW_TAG_VOLATILE_TYPE:
                        decorator = s -> String.format("volatile %s", s);
                        break;
                    case DW_TAG_CONST_TYPE:
                        decorator = s -> String.format("const %s", s);
                        break;
                    case DW_TAG_TYPEDEF:
                        {
                            final String name = MDNameExtractor.getName(mdType.getName());
                            decorator = s -> name;
                            break;
                        }
                    default:
                        decorator = Function.identity();
                }
                final LLVMSourceDecoratorType type = new LLVMSourceDecoratorType(size, align, offset, decorator, location);
                parsedTypes.put(mdType, type);
                final LLVMSourceType baseType = resolve(mdType.getBaseType());
                type.setBaseType(baseType);
                type.setSize(baseType.getSize());
                break;
            }
        case DW_TAG_INHERITANCE:
            {
                final LLVMSourceMemberType type = new LLVMSourceMemberType("super", size, align, offset, location);
                parsedTypes.put(mdType, type);
                final LLVMSourceType baseType = resolve(mdType.getBaseType());
                type.setElementType(baseType);
                type.setName(() -> String.format("super (%s)", baseType.getName()));
                break;
            }
        default:
            {
                parsedTypes.put(mdType, LLVMSourceType.UNKNOWN);
            }
    }
}