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/*
* Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
* Copyright (c) 2010 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
* MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
* ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
* DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed or intended for use
* in the design, construction, operation or maintenance of any nuclear
* facility.
*
* Sun gratefully acknowledges that this software was originally authored
* and developed by Kenneth Bradley Russell and Christopher John Kline.
*/
header {
package com.jogamp.gluegen.cgram;
import java.io.*;
import java.util.*;
import antlr.CommonAST;
import com.jogamp.gluegen.ASTLocusTag;
import com.jogamp.gluegen.ConstantDefinition;
import com.jogamp.gluegen.ConstantDefinition.CNumber;
import com.jogamp.gluegen.GlueGenException;
import com.jogamp.gluegen.JavaConfiguration;
import com.jogamp.gluegen.cgram.types.*;
import com.jogamp.gluegen.cgram.types.EnumType;
import com.jogamp.gluegen.cgram.types.EnumType.Enumerator;
}
class HeaderParser extends GnuCTreeParser;
options {
k = 1;
}
{
/** Name assigned to a anonymous EnumType (e.g., "enum { ... }"). */
public static final String ANONYMOUS_ENUM_NAME = "";
boolean debug = false;
public boolean getDebug() {
return debug;
}
public void setDebug(boolean debug) {
this.debug = debug;
}
/** Set the configuration for this
HeaderParser. Must be done before parsing. */
public void setJavaConfiguration(JavaConfiguration cfg) {
this.cfg = cfg;
}
/** Set the dictionary mapping typedef names to types for this
HeaderParser. Must be done before parsing. */
public void setTypedefDictionary(TypeDictionary dict) {
this.typedefDictionary = dict;
}
/** Returns the typedef dictionary this HeaderParser uses. */
public TypeDictionary getTypedefDictionary() {
return typedefDictionary;
}
/** Set the dictionary mapping struct names (i.e., the "foo" in
"struct foo { ... };") to types for this HeaderParser. Must be done
before parsing. */
public void setStructDictionary(TypeDictionary dict) {
this.structDictionary = dict;
}
/** Returns the struct name dictionary this HeaderParser uses. */
public TypeDictionary getStructDictionary() {
return structDictionary;
}
/** Get the canonicalization map, which is a regular HashMap
mapping Type to Type and which is used for looking up the unique
instances of e.g. pointer-to-structure types that have been typedefed
and therefore have names. */
public Map getCanonMap() {
return canonMap;
}
/** Pre-define the list of EnumTypes for this HeaderParser. Must be
done before parsing. */
public void setEnums(List enumTypes) {
// FIXME: Need to take the input set of EnumTypes, extract all
// the enumerates from each EnumType, and fill in the enumHash
// so that each enumerate maps to the enumType to which it
// belongs.
throw new RuntimeException("setEnums is Unimplemented!");
}
/** Returns the EnumTypes this HeaderParser processed. */
public List getEnums() {
return new ArrayList(enumHash.values());
}
/** Clears the list of functions this HeaderParser has parsed.
Useful when reusing the same HeaderParser for more than one
header file. */
public void clearParsedFunctions() {
functions.clear();
}
/** Returns the list of FunctionSymbols this HeaderParser has parsed. */
public List getParsedFunctions() {
return functions;
}
private CompoundType lookupInStructDictionary(String structName,
CompoundTypeKind kind,
int cvAttrs, final ASTLocusTag locusTag)
{
CompoundType t = (CompoundType) structDictionary.get(structName);
if (t == null) {
t = CompoundType.create(structName, null, kind, cvAttrs, locusTag);
structDictionary.put(structName, t);
debugPrintln("Adding compound mapping: [" + structName + "] -> "+getDebugTypeString(t)+" @ "+locusTag);
debugPrintln(t.getStructString());
}
return t;
}
private Type lookupInTypedefDictionary(final AST _t, String typeName) {
Type t = typedefDictionary.get(typeName);
if (t == null) {
throwGlueGenException(_t,
"Undefined reference to typedef name " + typeName);
}
return t;
}
static class ParameterDeclaration {
private String id;
private Type type;
ParameterDeclaration(String id, Type type) {
this.id = id;
this.type = type;
}
String id() { return id; }
Type type() { return type; }
void setType(final Type t) { type = t; }
public String toString() { return "ParamDecl["+id+": "+type.getDebugString()+"]"; }
}
// A box for a Type. Allows type to be passed down to be modified by recursive rules.
static class TypeBox {
private Type origType;
private Type type;
private boolean isTypedef;
TypeBox(Type type) {
this(type, false);
}
TypeBox(Type type, boolean isTypedef) {
this.origType = type;
this.isTypedef = isTypedef;
}
Type type() {
if (type == null) {
return origType;
}
return type;
}
void setType(Type type) {
this.type = type;
}
void reset() {
type = null;
}
boolean isTypedef() { return isTypedef; }
// for easier debugging
public String toString() {
String tStr = "Type=NULL_REF";
if (type == origType) {
tStr = "Type=ORIG_TYPE";
} else if (type != null) {
tStr = "Type: name=\"" + type.getCVAttributesString() + " " +
type.getName() + "\"; signature=\"" + type + "\"; class " +
type.getClass().getName();
}
String oStr = "OrigType=NULL_REF";
if (origType != null) {
oStr = "OrigType: name=\"" + origType.getCVAttributesString() + " " +
origType.getName() + "\"; signature=\"" + origType + "\"; class " +
origType.getClass().getName();
}
return "<["+tStr + "] [" + oStr + "] " + " isTypedef=" + isTypedef+">";
}
}
private String getDebugTypeString(Type t) {
if(debug) {
return getTypeString(t);
} else {
return null;
}
}
private String getTypeString(Type t) {
StringBuilder sb = new StringBuilder();
sb.append("[");
if(null!=t) {
sb.append(t.getDebugString());
sb.append(", opaque ").append(isOpaque(t)).append("]");
} else {
sb.append("nil]");
}
return sb.toString();
}
private boolean isOpaque(final Type type) {
return (cfg.typeInfo(type) != null);
}
private void debugPrintln(String msg) {
if(debug) {
System.err.println(msg);
}
}
private void debugPrint(String msg) {
if(debug) {
System.err.print(msg);
}
}
private JavaConfiguration cfg;
private TypeDictionary typedefDictionary;
private TypeDictionary structDictionary;
private List functions = new ArrayList();
// hash from name of an enumerated value to the EnumType to which it belongs
private HashMap enumHash = new HashMap();
private HashMap enumMap = new HashMap();
// Storage class specifiers
private static final int AUTO = 1 << 0;
private static final int REGISTER = 1 << 1;
private static final int TYPEDEF = 1 << 2;
// Function storage class specifiers
private static final int EXTERN = 1 << 3;
private static final int STATIC = 1 << 4;
private static final int INLINE = 1 << 5;
// Type qualifiers
private static final int CONST = 1 << 6;
private static final int VOLATILE = 1 << 7;
private static final int SIGNED = 1 << 8;
private static final int UNSIGNED = 1 << 9;
private boolean isFuncDeclaration; // Used to only process function typedefs
private String funcDeclName;
private List funcDeclParams;
private ASTLocusTag funcLocusTag;
private void resetFuncDeclaration() {
isFuncDeclaration = false;
funcDeclName = null;
funcDeclParams = null;
funcLocusTag = null;
}
private void setFuncDeclaration(final String name, final List p, final ASTLocusTag locusTag) {
isFuncDeclaration = true;
funcDeclName = name;
funcDeclParams = p;
funcLocusTag = locusTag;
}
private void processDeclaration(Type returnType) {
if (isFuncDeclaration) {
final FunctionSymbol sym = new FunctionSymbol(funcDeclName,
new FunctionType(null, null, returnType, 0, funcLocusTag),
funcLocusTag);
debugPrintln("Function ... "+sym.toString()+" @ "+funcLocusTag);
if (funcDeclParams != null) { // handle funcs w/ empty parameter lists (e.g., "foo()")
for (Iterator iter = funcDeclParams.iterator(); iter.hasNext(); ) {
ParameterDeclaration pd = iter.next();
pd.setType(pd.type());
debugPrintln(" add "+pd.toString());
sym.addArgument(pd.type(), pd.id());
}
}
debugPrintln("Function Added "+sym.toString());
functions.add(sym);
resetFuncDeclaration();
}
}
private int attrs2CVAttrs(int attrs) {
int cvAttrs = 0;
if ((attrs & CONST) != 0) {
cvAttrs |= CVAttributes.CONST;
}
if ((attrs & VOLATILE) != 0) {
cvAttrs |= CVAttributes.VOLATILE;
}
return cvAttrs;
}
/** Helper routine which handles creating a pointer or array type
for [] expressions */
private void handleArrayExpr(TypeBox tb, AST t, ASTLocusTag locusTag) {
if (t != null) {
try {
final int len = parseIntConstExpr(t);
tb.setType(canonicalize(new ArrayType(tb.type(), SizeThunk.mul(SizeThunk.constant(len), tb.type().getSize()), len, 0, locusTag)));
return;
} catch (RecognitionException e) {
// Fall through
}
}
tb.setType(canonicalize(new PointerType(SizeThunk.POINTER,
tb.type(), 0, locusTag)));
}
private int parseIntConstExpr(AST t) throws RecognitionException {
return intConstExpr(t);
}
/** Utility function: creates a new EnumType with the given name, or
returns an existing one if it has already been created. */
private EnumType getEnumType(String enumTypeName, ASTLocusTag locusTag) {
EnumType enumType = null;
Iterator it = enumHash.values().iterator();
while (it.hasNext()) {
EnumType potentialMatch = it.next();
if (potentialMatch.getName().equals(enumTypeName)) {
enumType = potentialMatch;
break;
}
}
if (enumType == null) {
// This isn't quite correct. In theory the enum should expand to
// the size of the largest element, so if there were a long long
// entry the enum should expand to e.g. int64. However, using
// "long" here (which is what used to be the case) was
// definitely incorrect and caused problems.
enumType = new EnumType(enumTypeName, SizeThunk.INT32, locusTag);
}
return enumType;
}
// Map used to canonicalize types. For example, we may typedef
// struct foo { ... } *pfoo; subsequent references to struct foo* should
// point to the same PointerType object that had its name set to "pfoo".
// Opaque canonical types are excluded.
private Map canonMap = new HashMap();
private Type canonicalize(Type t) {
Type res = (Type) canonMap.get(t);
if (res != null) {
return res;
} else {
canonMap.put(t, t);
return t;
}
}
private void throwGlueGenException(final AST t, final String message) throws GlueGenException {
// dumpASTTree("XXX", t);
throw new GlueGenException(message, findASTLocusTag(t));
}
private void throwGlueGenException(final ASTLocusTag locusTag, final String message) throws GlueGenException {
// dumpASTTree("XXX", t);
throw new GlueGenException(message, locusTag);
}
/**
* Return ASTLocusTag in tree, or null if not found.
*/
private ASTLocusTag findASTLocusTag(final AST astIn) {
AST ast = astIn;
while(null != ast) {
if( ast instanceof TNode ) {
final TNode tn = (TNode) ast;
final ASTLocusTag tag = tn.getASTLocusTag();
if( null != tag ) {
return tag;
}
}
ast = ast.getFirstChild();
}
return null;
}
private void dumpASTTree(final String pre, final AST t) {
int i=0;
AST it = t;
while( null != it ) {
it = dumpAST(pre+"."+i, it);
i++;
}
}
private AST dumpAST(final String pre, final AST ast) {
if( null == ast ) {
System.err.println(pre+".0: AST NULL");
return null;
} else {
System.err.println(pre+".0: AST Type: "+ast.getClass().getName());
System.err.println(pre+".1: line:col "+ast.getLine()+":"+ast.getColumn()+" -> "+ast.getText());
if( ast instanceof TNode ) {
final TNode tn = (TNode) ast;
final ASTLocusTag tag = tn.getASTLocusTag();
System.err.println(pre+".TN.1: "+tag);
final Hashtable attributes = tn.getAttributesTable();
System.err.println(pre+".TN.2: "+attributes);
}
return ast.getFirstChild();
}
}
}
declarator[TypeBox tb] returns [String s] {
resetFuncDeclaration();
s = null;
List params = null;
String funcPointerName = null;
TypeBox dummyTypeBox = null;
final ASTLocusTag locusTag = findASTLocusTag(declarator_AST_in);
}
: #( NDeclarator
( pointerGroup[tb] )?
( id:ID { s = id.getText(); }
| LPAREN funcPointerName = declarator[dummyTypeBox] RPAREN
)
( #( NParameterTypeList
(
params = parameterTypeList
| (idList)?
)
RPAREN
) {
if (id != null) {
setFuncDeclaration(id.getText(), params, locusTag);
} else if ( funcPointerName != null ) {
/* TypeBox becomes function pointer in this case */
final FunctionType ft = new FunctionType(null, null, tb.type(), 0, locusTag);
if (params == null) {
// If the function pointer has no declared parameters, it's a
// void function. I'm not sure if the parameter name is
// ever referenced anywhere when the type is VoidType, so
// just in case I'll set it to a comment string so it will
// still compile if written out to code anywhere.
ft.addArgument(new VoidType(0, locusTag), "/*unnamed-void*/");
} else {
for (Iterator iter = params.iterator(); iter.hasNext(); ) {
ParameterDeclaration pd = (ParameterDeclaration) iter.next();
ft.addArgument(pd.type(), pd.id());
}
}
tb.setType(canonicalize(new PointerType(SizeThunk.POINTER,
ft, 0, locusTag)));
s = funcPointerName;
}
}
| LBRACKET ( e:expr )? RBRACKET { handleArrayExpr(tb, e, locusTag); }
)*
)
;
typelessDeclaration {
TypeBox tb = null;
}
: #(NTypeMissing initDeclList[tb] SEMI)
;
declaration {
TypeBox tb = null;
}
: #( NDeclaration
tb = declSpecifiers
(
initDeclList[tb]
)?
( SEMI )+
) { processDeclaration(tb.type()); }
;
parameterTypeList returns [List l] { l = new ArrayList(); ParameterDeclaration decl = null; }
: ( decl = parameterDeclaration { if (decl != null) { l.add(decl); } } ( COMMA | SEMI )? )+ ( VARARGS )?
;
parameterDeclaration returns [ParameterDeclaration pd] {
Type t = null;
String decl = null;
pd = null;
TypeBox tb = null;
}
: #( NParameterDeclaration
tb = declSpecifiers
(decl = declarator[tb] | nonemptyAbstractDeclarator[tb])?
) {
if( null == tb ) {
throwGlueGenException(parameterDeclaration_AST_in,
String.format("Undefined type for declaration '%s'", decl));
}
pd = new ParameterDeclaration(decl, tb.type());
}
;
functionDef {
TypeBox tb = null;
}
: #( NFunctionDef
( functionDeclSpecifiers)?
declarator[tb]
(declaration | VARARGS)*
compoundStatement
)
;
declSpecifiers returns [TypeBox tb] {
tb = null;
Type t = null;
int x = 0;
int y = 0;
}
: ( y = storageClassSpecifier { x |= y; }
| y = typeQualifier { x |= y; }
| t = typeSpecifier[x]
)+
{
if (t == null &&
(x & (SIGNED | UNSIGNED)) != 0) {
t = new IntType("int", SizeThunk.INTxx,
((x & UNSIGNED) != 0),
attrs2CVAttrs(x),
findASTLocusTag(declSpecifiers_AST_in));
}
tb = new TypeBox(t, ((x & TYPEDEF) != 0));
}
;
storageClassSpecifier returns [int x] { x = 0; }
: "auto" { x |= AUTO; }
| "register" { x |= REGISTER; }
| "typedef" { x |= TYPEDEF; }
| x = functionStorageClassSpecifier
;
functionStorageClassSpecifier returns [int x] { x = 0; }
: "extern" { x |= EXTERN; }
| "static" { x |= STATIC; }
| "inline" { x |= INLINE; }
;
typeQualifier returns [int x] { x = 0; }
: "const" { x |= CONST; }
| "volatile" { x |= VOLATILE; }
| "signed" { x |= SIGNED; }
| "unsigned" { x |= UNSIGNED; }
;
typeSpecifier[int attributes] returns [Type t] {
t = null;
int cvAttrs = attrs2CVAttrs(attributes);
boolean unsig = ((attributes & UNSIGNED) != 0);
final ASTLocusTag locusTag = findASTLocusTag(typeSpecifier_AST_in);
}
// TYPEDEF
// | TYPEDEF-UNSIGNED
// UNSIGNED | |
// TOKEN TYPE NAME SIZE | ATTRIBS | | LOCUS
: "void" { t = new VoidType( cvAttrs, locusTag); }
| "char" { t = new IntType("char" , SizeThunk.INT8, unsig, cvAttrs, false, false, locusTag); }
| "short" { t = new IntType("short", SizeThunk.INT16, unsig, cvAttrs, false, false, locusTag); }
| "int" { t = new IntType("int" , SizeThunk.INTxx, unsig, cvAttrs, false, false, locusTag); }
| "long" { t = new IntType("long" , SizeThunk.LONG, unsig, cvAttrs, false, false, locusTag); }
| "float" { t = new FloatType("float", SizeThunk.FLOAT, cvAttrs, locusTag); }
| "double" { t = new DoubleType("double", SizeThunk.DOUBLE, cvAttrs, locusTag); }
| "__int32" { t = new IntType("__int32", SizeThunk.INT32, unsig, cvAttrs, true, false, locusTag); } /* TD: signed */
| "__int64" { t = new IntType("__int64", SizeThunk.INT64, unsig, cvAttrs, true, false, locusTag); } /* TD: signed */
| "int8_t" { t = new IntType("int8_t", SizeThunk.INT8, unsig, cvAttrs, true, false, locusTag); } /* TD: signed */
| "uint8_t" { t = new IntType("uint8_t", SizeThunk.INT8, unsig, cvAttrs, true, true, locusTag); } /* TD: unsigned */
| "int16_t" { t = new IntType("int16_t", SizeThunk.INT16, unsig, cvAttrs, true, false, locusTag); } /* TD: signed */
| "uint16_t" { t = new IntType("uint16_t", SizeThunk.INT16, unsig, cvAttrs, true, true, locusTag); } /* TD: unsigned */
| "int32_t" { t = new IntType("int32_t", SizeThunk.INT32, unsig, cvAttrs, true, false, locusTag); } /* TD: signed */
| "wchar_t" { t = new IntType("wchar_t", SizeThunk.INT32, unsig, cvAttrs, true, false, locusTag); } /* TD: signed */
| "uint32_t" { t = new IntType("uint32_t", SizeThunk.INT32, unsig, cvAttrs, true, true, locusTag); } /* TS: unsigned */
| "int64_t" { t = new IntType("int64_t", SizeThunk.INT64, unsig, cvAttrs, true, false, locusTag); } /* TD: signed */
| "uint64_t" { t = new IntType("uint64_t", SizeThunk.INT64, unsig, cvAttrs, true, true, locusTag); } /* TD: unsigned */
| "ptrdiff_t" { t = new IntType("ptrdiff_t", SizeThunk.POINTER, unsig, cvAttrs, true, false, locusTag); } /* TD: signed */
| "intptr_t" { t = new IntType("intptr_t", SizeThunk.POINTER, unsig, cvAttrs, true, false, locusTag); } /* TD: signed */
| "size_t" { t = new IntType("size_t", SizeThunk.POINTER, unsig, cvAttrs, true, true, locusTag); } /* TD: unsigned */
| "uintptr_t" { t = new IntType("uintptr_t", SizeThunk.POINTER, unsig, cvAttrs, true, true, locusTag); } /* TD: unsigned */
| t = structSpecifier[cvAttrs] ( attributeDecl )*
| t = unionSpecifier [cvAttrs] ( attributeDecl )*
| t = enumSpecifier [cvAttrs]
| t = typedefName [cvAttrs]
| #("typeof" LPAREN
( (typeName )=> typeName
| expr
)
RPAREN
)
| "__complex"
;
typedefName[int cvAttrs] returns [Type t] { t = null; }
: #(NTypedefName id : ID)
{
final Type t0 = lookupInTypedefDictionary(typedefName_AST_in, id.getText());
debugPrint("Adding typedef lookup: [" + id.getText() + "] -> "+getDebugTypeString(t0));
final Type t1 = t0.newCVVariant(cvAttrs);
debugPrintln(" - cvvar -> "+getDebugTypeString(t1));
t = canonicalize(t1);
debugPrintln(" - canon -> "+getDebugTypeString(t));
}
;
structSpecifier[int cvAttrs] returns [Type t] { t = null; }
: #( "struct" t = structOrUnionBody[CompoundTypeKind.STRUCT, cvAttrs] )
;
unionSpecifier[int cvAttrs] returns [Type t] { t = null; }
: #( "union" t = structOrUnionBody[CompoundTypeKind.UNION, cvAttrs] )
;
structOrUnionBody[CompoundTypeKind kind, int cvAttrs] returns [CompoundType t] {
t = null;
boolean addedAny = false;
final ASTLocusTag locusTag = findASTLocusTag(structOrUnionBody_AST_in);
}
: ( (ID LCURLY) => id:ID LCURLY {
// fully declared struct, i.e. not anonymous
t = (CompoundType) canonicalize(lookupInStructDictionary(id.getText(), kind, cvAttrs, locusTag));
} ( addedAny = structDeclarationList[t] )?
RCURLY { t.setBodyParsed(); }
| LCURLY {
// anonymous declared struct
t = CompoundType.create(null, null, kind, cvAttrs, locusTag);
} ( structDeclarationList[t] )?
RCURLY { t.setBodyParsed(); }
| id2:ID {
// anonymous struct
t = (CompoundType) canonicalize(lookupInStructDictionary(id2.getText(), kind, cvAttrs, locusTag));
}
) {
debugPrintln("Adding compound body: [" + t.getName() + "] -> "+getDebugTypeString(t)+" @ "+locusTag);
debugPrintln(t.getStructString());
}
;
structDeclarationList[CompoundType t] returns [boolean addedAny] {
addedAny = false;
boolean addedOne = false;
}
: ( addedOne = structDeclaration[t] { addedAny |= addedOne; } )+
;
structDeclaration[CompoundType containingType] returns [boolean addedAny] {
addedAny = false;
Type t = null;
}
: t = specifierQualifierList addedAny = structDeclaratorList[containingType, t] {
if (!addedAny) {
if (t != null) {
CompoundType ct = t.asCompound();
if( null == ct ) {
throwGlueGenException(structDeclaration_AST_in,
String.format("Anonymous compound, w/ NULL type:%n containing '%s'",
getTypeString(containingType)));
}
if ( ct.isUnion() ) {
// Anonymous union
containingType.addField(new Field(null, t, null));
}
}
}
}
;
specifierQualifierList returns [Type t] {
t = null; int x = 0; int y = 0;
}
: (
t = typeSpecifier[x]
| y = typeQualifier { x |= y; }
)+ {
if (t == null &&
(x & (SIGNED | UNSIGNED)) != 0) {
t = new IntType("int", SizeThunk.INTxx, ((x & UNSIGNED) != 0), attrs2CVAttrs(x),
findASTLocusTag(specifierQualifierList_AST_in));
}
}
;
structDeclaratorList[CompoundType containingType, Type t] returns [boolean addedAny] {
addedAny = false;
boolean y = false;
}
: ( y = structDeclarator[containingType, t] { addedAny = y; })+
;
structDeclarator[CompoundType containingType, Type t] returns [boolean addedAny] {
addedAny = false;
String s = null;
TypeBox tb = new TypeBox(t);
}
:
#( NStructDeclarator
( s = declarator[tb] { containingType.addField(new Field(s, tb.type(), null)); addedAny = true; } )?
( COLON expr { /* FIXME: bit types not handled yet */ } ) ?
( attributeDecl )*
)
;
// This will not correctly set the name of the enumeration when
// encountering a declaration like this:
//
// typedef enum { } enumName;
//
// In this case calling getName() on the EnumType return value will
// incorrectly return HeaderParser.ANONYMOUS_ENUM_NAME instead of
// "enumName"
//
// The followup typedef, see 'initDecl', will alias this name,
// hence correct the issue!
enumSpecifier [int cvAttrs] returns [Type t] {
t = null;
EnumType e = null;
ASTLocusTag locusTag = findASTLocusTag(enumSpecifier_AST_in);
}
: #( "enum"
( ( ID LCURLY )=> i:ID LCURLY enumList[(EnumType)(e = getEnumType(i.getText(), locusTag))] RCURLY
| LCURLY enumList[(EnumType)(e = getEnumType(ANONYMOUS_ENUM_NAME, locusTag))] RCURLY
| ID { e = getEnumType(i.getText(), locusTag); }
) {
debugPrintln("Adding enum mapping: "+getDebugTypeString(e));
if( null != e ) {
final String eName = e.getName();
if( null != eName && !eName.equals(ANONYMOUS_ENUM_NAME) ) { // validate only non-anonymous enum
final EnumType dupE = enumMap.get(eName);
if( null != dupE && !dupE.equalSemantics(e) ) {
throwGlueGenException(enumSpecifier_AST_in,
String.format("Duplicate enum w/ incompatible type:%n this '%s',%n have '%s',%n %s: previous definition is here",
getTypeString(e), getTypeString(dupE), dupE.getASTLocusTag().toString(new StringBuilder(), "note", true)));
}
enumMap.put(eName, (EnumType)e.clone(locusTag));
}
}
t = e; // return val
}
)
;
enumList[EnumType enumeration] {
ConstantDefinition defEnumerant = new ConstantDefinition("def", "0", new CNumber(true, false, 0), findASTLocusTag(enumList_AST_in));
}
: ( defEnumerant = enumerator[enumeration, defEnumerant] )+
;
enumerator[EnumType enumeration, ConstantDefinition defaultValue] returns [ConstantDefinition newDefaultValue] {
newDefaultValue = defaultValue;
}
: eName:ID ( ASSIGN eVal:expr )? {
final String eTxt = eName.getText();
final Enumerator newEnum;
if (eVal != null) {
String vTxt = eVal.getAllChildrenText(eTxt);
if (enumHash.containsKey(vTxt)) {
EnumType oldEnumType = enumHash.get(vTxt);
Enumerator oldEnum = oldEnumType.getEnum(vTxt);
newEnum = oldEnum;
} else {
newEnum = new Enumerator(eTxt, vTxt);
}
} else if( defaultValue.hasNumber() ) {
newEnum = new Enumerator(eTxt, defaultValue.getNumber());
} else {
newEnum = new Enumerator(eTxt, defaultValue.getNativeExpr());
}
final ASTLocusTag locus = findASTLocusTag(enumerator_AST_in);
final CNumber newEnumNum = newEnum.getNumber();
if( null != newEnumNum && newEnumNum.isInteger ) {
final long n = newEnumNum.i+1;
newDefaultValue = new ConstantDefinition("def", String.valueOf(n), new CNumber(newEnumNum.isLong, newEnumNum.isUnsigned, n), locus);
} else {
newDefaultValue = new ConstantDefinition("def", "("+newEnum.getExpr()+")+1", null, locus);
}
if (enumHash.containsKey(eTxt)) {
EnumType oldEnumType = enumHash.get(eTxt);
final Enumerator oldEnum = oldEnumType.getEnum(eTxt);
final String oldExpr = oldEnum.getExpr();
if( !oldExpr.equals(newEnum.getExpr()) ) {
throwGlueGenException(enumerator_AST_in,
String.format("Duplicate enum value '%s.%s' w/ diff value:%n this %s,%n have %s",
oldEnumType.getName(), eTxt, newEnum, oldEnum));
}
// remove old definition
oldEnumType.removeEnumerate(eTxt);
}
// insert new definition
enumeration.addEnum(eTxt, newEnum);
enumHash.put(eTxt, enumeration);
debugPrintln("ENUM [" + enumeration.getName() + "]: " + eTxt + " = " + newEnum +
" (new default = " + newDefaultValue + ")");
}
;
initDeclList[TypeBox tb]
: ( initDecl[tb] )+
;
initDecl[TypeBox tb] {
String declName = null;
final ASTLocusTag locusTag = findASTLocusTag(initDecl_AST_in);
}
: #( NInitDecl
declName = declarator[tb] {
debugPrintln("GOT declName: " + declName + " TB=" + tb);
}
( attributeDecl )*
( ASSIGN initializer
| COLON expr
)?
)
{
if ((declName != null) && (tb != null) && tb.isTypedef()) {
Type t = tb.type();
debugPrintln("Adding typedef mapping: [" + declName + "] -> "+getDebugTypeString(t));
final Type tg;
if( t.isPointer() ) {
tg = t.getTargetType();
debugPrintln(" - has target: "+getDebugTypeString(tg));
} else {
tg = null;
}
// NOTE: Struct Name Resolution (JavaEmitter, HeaderParser)
// Also see NOTE below.
if (!t.isTypedef()) {
if( t.isCompound() || t.isEnum() ) {
// This aliases '_a' -> 'A' for 'typedef struct _a { } A;' in-place
// This aliases '_a' -> 'A' for 'typedef enum _a { } A;' in-place
t.setTypedefName(declName);
debugPrintln(" - alias.11 -> "+getDebugTypeString(t));
} else {
// Use new typedef, using a copy to preserve canonicalized base type
t = t.clone(locusTag);
t.setTypedefName(declName);
debugPrintln(" - newdefine.12 -> "+getDebugTypeString(t));
}
} else {
// Adds typeInfo alias w/ t's typeInfo, if exists
cfg.addTypeInfo(declName, t);
final Type alias;
if( t.isCompound() ) {
// This aliases 'D' -> 'A' for 'typedef struct _a { } A, D;' in-place
debugPrintln(" - alias.21 -> "+getDebugTypeString(t));
} else {
// copy to preserve canonicalized base type
t = t.clone(locusTag);
t.setTypedefName(declName);
debugPrintln(" - copy.22 -> "+getDebugTypeString(t));
}
}
final Type dupT = typedefDictionary.get(declName);
if( null != dupT && !dupT.equalSemantics(t) ) {
throwGlueGenException(locusTag,
String.format("Duplicate typedef w/ incompatible type:%n this '%s',%n have '%s',%n %s: previous definition is here",
getTypeString(t), getTypeString(dupT), dupT.getASTLocusTag().toString(new StringBuilder(), "note", true)));
}
t = canonicalize(t);
debugPrintln(" - canon -> "+getDebugTypeString(t));
typedefDictionary.put(declName, t);
// Clear out PointerGroup effects in case another typedef variant follows
tb.reset();
}
}
/*
// Below just shows a different handling using copying
// and enforcing aliased names, which is not desired.
// Keeping it in here for documentation.
// NOTE: Struct Name Resolution (JavaEmitter, HeaderParser)
if ( !t.isTypedef() ) {
if( t.isCompound() ) {
// This aliases '_a' -> 'A' for 'typedef struct _a { } A;'
t.setTypedefName(declName);
debugPrintln(" - alias.10 -> "+getDebugTypeString(t));
} else if( null != tg && tg.isCompound() ) {
if( !tg.isTypedef() ) {
// This aliases '_a *' -> 'A*' for 'typedef struct _a { } *A;'
t.setTypedefName(declName);
debugPrintln(" - alias.11 -> "+getDebugTypeString(t));
} else {
// This aliases 'B' -> 'A*' for 'typedef struct _a { } A, *B;' and 'typedef A * B;'
t = new PointerType(SizeThunk.POINTER, tg, 0, locusTag); // name: 'A*'
t.setTypedefName(t.getName()); // make typedef
debugPrintln(" - alias.12 -> "+getDebugTypeString(t));
}
} else {
// Use new typedef, using a copy to preserve canonicalized base type
t = t.clone(locusTag);
t.setTypedefName(declName);
debugPrintln(" - newdefine.13 -> "+getDebugTypeString(t));
}
} else {
// Adds typeInfo alias w/ t's typeInfo, if exists
cfg.addTypeInfo(declName, t);
if( t.isCompound() ) {
// This aliases 'D' -> 'A' for 'typedef struct _a { } A, D;'
debugPrintln(" - alias.20 -> "+getDebugTypeString(t));
} else if( null != tg && tg.isCompound() ) {
// This aliases 'B' -> 'A' for 'typedef A B;', where A is pointer to compound
debugPrintln(" - alias.21 -> "+getDebugTypeString(t));
} else {
// copy to preserve canonicalized base type
t = t.clone(locusTag);
t.setTypedefName(declName);
debugPrintln(" - copy.22 -> "+getDebugTypeString(t));
}
}
*/
;
pointerGroup[TypeBox tb] { int x = 0; int y = 0; }
: #( NPointerGroup ( STAR { x = 0; y = 0; } ( y = typeQualifier { x |= y; } )*
{
debugPrintln("IN PTR GROUP: TB=" + tb);
if (tb != null) {
tb.setType(canonicalize(new PointerType(SizeThunk.POINTER,
tb.type(),
attrs2CVAttrs(x),
findASTLocusTag(pointerGroup_AST_in))));
}
}
)+ )
;
functionDeclSpecifiers
:
( functionStorageClassSpecifier
| typeQualifier
| typeSpecifier[0]
)+
;
typeName {
TypeBox tb = null;
}
: specifierQualifierList (nonemptyAbstractDeclarator[tb])?
;
/* FIXME: the handling of types in this rule has not been well thought
out and is known to be incomplete. Currently it is only used to handle
pointerGroups for unnamed parameters. */
nonemptyAbstractDeclarator[TypeBox tb] {
final ASTLocusTag locusTag = findASTLocusTag(nonemptyAbstractDeclarator_AST_in);
}
: #( NNonemptyAbstractDeclarator
( pointerGroup[tb]
( (LPAREN
( nonemptyAbstractDeclarator[tb]
| parameterTypeList
)?
RPAREN)
| (LBRACKET (e1:expr)? RBRACKET) { handleArrayExpr(tb, e1, locusTag); }
)*
| ( (LPAREN
( nonemptyAbstractDeclarator[tb]
| parameterTypeList
)?
RPAREN)
| (LBRACKET (e2:expr)? RBRACKET) { handleArrayExpr(tb, e2, locusTag); }
)+
)
)
;
/* Helper routine for parsing expressions which evaluate to integer
constants. Can be made more complicated as necessary. */
intConstExpr returns [int i] { i = -1; }
: n:Number { return Integer.parseInt(n.getText()); }
| e:ID {
final String enumName = e.getText();
final EnumType enumType = enumHash.get(enumName);
if( null == enumType ) {
throwGlueGenException(intConstExpr_AST_in,
"Error: intConstExpr ID "+enumName+" recognized, but no containing enum-type found");
}
final Enumerator enumerator = enumType.getEnum(enumName);
final CNumber number = enumerator.getNumber();
if( null != number && number.isInteger && !number.isLong ) {
debugPrintln("INFO: intConstExpr: enum[Type "+enumType.getName()+", "+enumerator+"]");
} else {
throwGlueGenException(intConstExpr_AST_in,
"Error: intConstExpr ID "+enumName+" enum "+enumerator+" not an int32_t");
}
return (int)number.i;
}
;
