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Added support for old style (K&R) function declarations.

Browse Source 
Several renames for better readibility.
Removed separate struct and enum symbol tables in favour of one tag table.
Check for some more error conditions or dubious constructs.


git-svn-id: svn://svn.cc65.org/cc65/trunk@62 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2000-06-12 18:31:40 +00:00
parent 04dee08f58
commit 9cc25f13b6
23 changed files with 1269 additions and 976 deletions
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322
src/cc65/compile.c Normal file
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@ -0,0 +1,322 @@
/*****************************************************************************/
/* */
/* compile.c */
/* */
/* Top level compiler subroutine */
/* */
/* */
/* */
/* (C) 2000 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#include <stdlib.h>
#include "../common/version.h"
#include "asmlabel.h"
#include "codegen.h"
#include "declare.h"
#include "error.h"
#include "expr.h"
#include "function.h"
#include "global.h"
#include "include.h"
#include "io.h"
#include "litpool.h"
#include "macrotab.h"
#include "pragma.h"
#include "symtab.h"
#include "compile.h"
/*****************************************************************************/
/* Code */
/*****************************************************************************/
static void Parse (void)
/* Process all input text.
* At this level, only static declarations, defines, includes, and function
* definitions are legal....
*/
{
int comma;
SymEntry* Entry;
kill ();
NextToken (); /* "prime" the pump */
NextToken ();
while (curtok != TOK_CEOF) {
DeclSpec Spec;
Declaration Decl;
int NeedStorage;
/* Check for empty statements */
if (curtok == TOK_SEMI) {
NextToken ();
continue;
}
/* Check for an ASM statement (which is allowed also on global level) */
if (curtok == TOK_ASM) {
doasm ();
ConsumeSemi ();
continue;
}
/* Check for a #pragma */
if (curtok == TOK_PRAGMA) {
DoPragma ();
continue;
}
/* Read variable defs and functions */
ParseDeclSpec (&Spec, SC_EXTERN | SC_STATIC, T_INT);
/* Don't accept illegal storage classes */
if (Spec.StorageClass == SC_AUTO || Spec.StorageClass == SC_REGISTER) {
Error (ERR_ILLEGAL_STORAGE_CLASS);
Spec.StorageClass = SC_EXTERN | SC_STATIC;
}
/* Check if this is only a type declaration */
if (curtok == TOK_SEMI) {
CheckEmptyDecl (&Spec);
NextToken ();
continue;
}
/* Check if we must reserve storage for the variable. We do
* this if we don't had a storage class given ("int i") or
* if the storage class is explicitly specified as static.
* This means that "extern int i" will not get storage
* allocated.
*/
NeedStorage = (Spec.StorageClass & SC_TYPEDEF) == 0 &&
((Spec.Flags & DS_DEF_STORAGE) != 0 ||
(Spec.StorageClass & (SC_STATIC | SC_EXTERN)) == SC_STATIC);
/* Read declarations for this type */
Entry = 0;
comma = 0;
while (1) {
unsigned SymFlags;
/* Read the next declaration */
ParseDecl (&Spec, &Decl, DM_NEED_IDENT);
if (Decl.Ident[0] == '\0') {
NextToken ();
break;
}
/* Get the symbol flags */
SymFlags = Spec.StorageClass;
if (IsFunc (Decl.Type)) {
SymFlags |= SC_FUNC;
} else {
if (NeedStorage) {
/* We will allocate storage, variable is defined */
SymFlags |= SC_STORAGE | SC_DEF;
}
}
/* Add an entry to the symbol table */
Entry = AddGlobalSym (Decl.Ident, Decl.Type, SymFlags);
/* Reserve storage for the variable if we need to */
if (SymFlags & SC_STORAGE) {
/* Get the size of the variable */
unsigned Size = SizeOf (Decl.Type);
/* Allow initialization */
if (curtok == TOK_ASSIGN) {
/* We cannot initialize types of unknown size, or
* void types in non ANSI mode.
*/
if (Size == 0) {
if (!IsVoid (Decl.Type)) {
if (!IsArray (Decl.Type)) {
/* Size is unknown and not an array */
Error (ERR_UNKNOWN_SIZE);
}
} else if (ANSI) {
/* We cannot declare variables of type void */
Error (ERR_ILLEGAL_TYPE);
}
}
/* Switch to the data segment */
g_usedata ();
/* Define a label */
g_defgloblabel (Entry->Name);
/* Skip the '=' */
NextToken ();
/* Parse the initialization */
ParseInit (Entry->Type);
} else {
if (IsVoid (Decl.Type)) {
/* We cannot declare variables of type void */
Error (ERR_ILLEGAL_TYPE);
} else if (Size == 0) {
/* Size is unknown */
Error (ERR_UNKNOWN_SIZE);
}
/* Switch to the BSS segment */
g_usebss ();
/* Define a label */
g_defgloblabel (Entry->Name);
/* Allocate space for uninitialized variable */
g_res (SizeOf (Entry->Type));
}
}
/* Check for end of declaration list */
if (curtok == TOK_COMMA) {
NextToken ();
comma = 1;
} else {
break;
}
}
/* Function declaration? */
if (IsFunc (Decl.Type)) {
/* Function */
if (!comma) {
if (curtok == TOK_SEMI) {
/* Prototype only */
NextToken ();
} else {
if (Entry) {
NewFunc (Entry);
}
}
}
} else {
/* Must be followed by a semicolon */
ConsumeSemi ();
}
}
}
void Compile (void)
/* Top level compile routine. Will setup things and call the parser. */
{
char* Path;
/* Setup variables */
filetab[0].f_iocb = inp;
LiteralLabel = GetLabel ();
/* Add some standard paths to the include search path */
AddIncludePath ("", INC_USER); /* Current directory */
AddIncludePath ("include", INC_SYS);
#ifdef CC65_INC
AddIncludePath (CC65_INC, INC_SYS);
#else
AddIncludePath ("/usr/lib/cc65/include", INC_SYS);
#endif
Path = getenv ("CC65_INC");
if (Path) {
AddIncludePath (Path, INC_SYS | INC_USER);
}
/* Add macros that are always defined */
AddNumericMacro ("__CC65__", (VER_MAJOR * 0x100) + (VER_MINOR * 0x10) + VER_PATCH);
/* Strict ANSI macro */
if (ANSI) {
AddNumericMacro ("__STRICT_ANSI__", 1);
}
/* Optimization macros */
if (Optimize) {
AddNumericMacro ("__OPT__", 1);
if (FavourSize == 0) {
AddNumericMacro ("__OPT_i__", 1);
}
if (EnableRegVars) {
AddNumericMacro ("__OPT_r__", 1);
}
if (InlineStdFuncs) {
AddNumericMacro ("__OPT_s__", 1);
}
}
/* Create the base lexical level */
EnterGlobalLevel ();
/* Generate the code generator preamble */
g_preamble ();
/* Ok, start the ball rolling... */
Parse ();
/* Dump literal pool. */
DumpLiteralPool ();
/* Write imported/exported symbols */
EmitExternals ();
if (Debug) {
PrintLiteralStats (stdout);
PrintMacroStats (stdout);
}
/* Leave the main lexical level */
LeaveGlobalLevel ();
/* Print an error report */
ErrorReport ();
}

57
src/cc65/compile.h Normal file
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@ -0,0 +1,57 @@
/*****************************************************************************/
/* */
/* compile.h */
/* */
/* Top level compiler subroutine */
/* */
/* */
/* */
/* (C) 2000 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#ifndef COMPILE_H
#define COMPILE_H
/*****************************************************************************/
/* Code */
/*****************************************************************************/
void Compile (void);
/* Top level compile routine. Will setup things and call the parser. */
/* End of compile.h */
#endif

7
src/cc65/datatype.c
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@ -184,10 +184,9 @@ type* GetImplicitFuncType (void)
type* T = TypeAlloc (1 + DECODE_SIZE + 2);
/* Prepare the function descriptor */
F->Flags = FD_IMPLICIT | FD_ELLIPSIS;
F->SymTab = &EmptySymTab;
F->StructTab = &EmptySymTab;
F->EnumTab = &EmptySymTab;
F->Flags = FD_IMPLICIT | FD_EMPTY | FD_ELLIPSIS;
F->SymTab = &EmptySymTab;
F->TagTab = &EmptySymTab;
/* Fill the type string */
T [0] = T_FUNC;

506
src/cc65/declare.c
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@ -48,9 +48,9 @@ static void ParseTypeSpec (DeclSpec* D, int Default);
static void optional_modifiers (void)
/* Eat optional "const" or "volatile" tokens */
{
while (curtok == CONST || curtok == VOLATILE) {
while (curtok == TOK_CONST || curtok == TOK_VOLATILE) {
/* Skip it */
gettok ();
NextToken ();
}
}
@ -59,9 +59,9 @@ static void optional_modifiers (void)
static void optionalint (void)
/* Eat an optional "int" token */
{
if (curtok == INT) {
if (curtok == TOK_INT) {
/* Skip it */
gettok ();
NextToken ();
}
}
@ -70,9 +70,9 @@ static void optionalint (void)
static void optionalsigned (void)
/* Eat an optional "signed" token */
{
if (curtok == SIGNED) {
if (curtok == TOK_SIGNED) {
/* Skip it */
gettok ();
NextToken ();
}
}
@ -107,29 +107,29 @@ static void ParseStorageClass (DeclSpec* D, unsigned DefStorage)
/* Check the storage class given */
switch (curtok) {
case EXTERN:
case TOK_EXTERN:
D->StorageClass = SC_EXTERN | SC_STATIC;
gettok ();
NextToken ();
break;
case STATIC:
case TOK_STATIC:
D->StorageClass = SC_STATIC;
gettok ();
NextToken ();
break;
case REGISTER:
case TOK_REGISTER:
D->StorageClass = SC_REGISTER | SC_STATIC;
gettok ();
NextToken ();
break;
case AUTO:
case TOK_AUTO:
D->StorageClass = SC_AUTO;
gettok ();
NextToken ();
break;
case TYPEDEF:
case TOK_TYPEDEF:
D->StorageClass = SC_TYPEDEF;
gettok ();
NextToken ();
break;
default:
@ -149,31 +149,31 @@ static void ParseEnumDecl (void)
ident Ident;
/* Accept forward definitions */
if (curtok != LCURLY) {
if (curtok != TOK_LCURLY) {
return;
}
/* Skip the opening curly brace */
gettok ();
NextToken ();
/* Read the enum tags */
EnumVal = 0;
while (curtok != RCURLY) {
while (curtok != TOK_RCURLY) {
/* We expect an identifier */
if (curtok != IDENT) {
if (curtok != TOK_IDENT) {
Error (ERR_IDENT_EXPECTED);
continue;
}
/* Remember the identifier and skip it */
strcpy (Ident, CurTok.Ident);
gettok ();
NextToken ();
/* Check for an assigned value */
if (curtok == ASGN) {
if (curtok == TOK_ASSIGN) {
struct expent lval;
gettok ();
NextToken ();
constexpr (&lval);
EnumVal = lval.e_const;
}
@ -182,9 +182,9 @@ static void ParseEnumDecl (void)
AddEnumSym (Ident, EnumVal++);
/* Check for end of definition */
if (curtok != COMMA)
if (curtok != TOK_COMMA)
break;
gettok ();
NextToken ();
}
ConsumeRCurly ();
}
@ -201,30 +201,33 @@ static SymEntry* ParseStructDecl (const char* Name, type StructType)
SymEntry* Entry;
if (curtok != LCURLY) {
if (curtok != TOK_LCURLY) {
/* Just a forward declaration. Try to find a struct with the given
* name. If there is none, insert a forward declaration into the
* current lexical level.
*/
Entry = FindStructSym (Name);
if (Entry == 0 || Entry->Flags != SC_STRUCT) {
Entry = FindTagSym (Name);
if (Entry == 0) {
Entry = AddStructSym (Name, 0, 0);
} else if (SymIsLocal (Entry) && (Entry->Flags & SC_STRUCT) == 0) {
/* Already defined in the level but no struct */
Error (ERR_SYMBOL_KIND);
}
return Entry;
return Entry;
}
/* Add a forward declaration for the struct in the current lexical level */
Entry = AddStructSym (Name, 0, 0);
/* Skip the curly brace */
gettok ();
NextToken ();
/* Enter a new lexical level for the struct */
EnterStructLevel ();
/* Parse struct fields */
Size = 0;
while (curtok != RCURLY) {
while (curtok != TOK_RCURLY) {
/* Get the type of the entry */
DeclSpec Spec;
@ -251,15 +254,15 @@ static SymEntry* ParseStructDecl (const char* Name, type StructType)
}
}
if (curtok != COMMA)
if (curtok != TOK_COMMA)
break;
gettok ();
NextToken ();
}
ConsumeSemi ();
}
/* Skip the closing brace */
gettok ();
NextToken ();
/* Remember the symbol table and leave the struct level */
FieldTab = GetSymTab ();
@ -274,9 +277,9 @@ static SymEntry* ParseStructDecl (const char* Name, type StructType)
static void ParseTypeSpec (DeclSpec* D, int Default)
/* Parse a type specificier */
{
ident Ident;
SymEntry* Entry;
type StructType;
ident Ident;
SymEntry* Entry;
type StructType;
/* Assume have an explicit type */
D->Flags &= ~DS_DEF_TYPE;
@ -287,22 +290,22 @@ static void ParseTypeSpec (DeclSpec* D, int Default)
/* Look at the data type */
switch (curtok) {
case VOID:
gettok ();
case TOK_VOID:
NextToken ();
D->Type[0] = T_VOID;
D->Type[1] = T_END;
break;
case CHAR:
gettok ();
case TOK_CHAR:
NextToken ();
D->Type[0] = GetDefaultChar();
D->Type[1] = T_END;
break;
case LONG:
gettok ();
if (curtok == UNSIGNED) {
gettok ();
case TOK_LONG:
NextToken ();
if (curtok == TOK_UNSIGNED) {
NextToken ();
optionalint ();
D->Type[0] = T_ULONG;
D->Type[1] = T_END;
@ -314,10 +317,10 @@ static void ParseTypeSpec (DeclSpec* D, int Default)
}
break;
case SHORT:
gettok ();
if (curtok == UNSIGNED) {
gettok ();
case TOK_SHORT:
NextToken ();
if (curtok == TOK_UNSIGNED) {
NextToken ();
optionalint ();
D->Type[0] = T_USHORT;
D->Type[1] = T_END;
@ -329,38 +332,38 @@ static void ParseTypeSpec (DeclSpec* D, int Default)
}
break;
case INT:
gettok ();
case TOK_INT:
NextToken ();
D->Type[0] = T_INT;
D->Type[1] = T_END;
break;
case SIGNED:
gettok ();
case TOK_SIGNED:
NextToken ();
switch (curtok) {
case CHAR:
gettok ();
case TOK_CHAR:
NextToken ();
D->Type[0] = T_CHAR;
D->Type[1] = T_END;
break;
case SHORT:
gettok ();
case TOK_SHORT:
NextToken ();
optionalint ();
D->Type[0] = T_SHORT;
D->Type[1] = T_END;
break;
case LONG:
gettok ();
case TOK_LONG:
NextToken ();
optionalint ();
D->Type[0] = T_LONG;
D->Type[1] = T_END;
break;
case INT:
gettok ();
case TOK_INT:
NextToken ();
/* FALL THROUGH */
default:
@ -370,32 +373,32 @@ static void ParseTypeSpec (DeclSpec* D, int Default)
}
break;
case UNSIGNED:
gettok ();
case TOK_UNSIGNED:
NextToken ();
switch (curtok) {
case CHAR:
gettok ();
case TOK_CHAR:
NextToken ();
D->Type[0] = T_UCHAR;
D->Type[1] = T_END;
break;
break;
case SHORT:
gettok ();
case TOK_SHORT:
NextToken ();
optionalint ();
D->Type[0] = T_USHORT;
D->Type[1] = T_END;
break;
case LONG:
gettok ();
case TOK_LONG:
NextToken ();
optionalint ();
D->Type[0] = T_ULONG;
D->Type[1] = T_END;
break;
case INT:
gettok ();
case TOK_INT:
NextToken ();
/* FALL THROUGH */
default:
@ -405,16 +408,19 @@ static void ParseTypeSpec (DeclSpec* D, int Default)
}
break;
case STRUCT:
case UNION:
StructType = (curtok == STRUCT)? T_STRUCT : T_UNION;
gettok ();
if (curtok == IDENT) {
case TOK_STRUCT:
case TOK_UNION:
StructType = (curtok == TOK_STRUCT)? T_STRUCT : T_UNION;
NextToken ();
/* */
if (curtok == TOK_IDENT) {
strcpy (Ident, CurTok.Ident);
gettok ();
NextToken ();
} else {
AnonName (Ident, (StructType == T_STRUCT)? "struct" : "union");
}
/* Remember we have an extra type decl */
D->Flags |= DS_EXTRA_TYPE;
/* Declare the struct in the current scope */
Entry = ParseStructDecl (Ident, StructType);
/* Encode the struct entry into the type */
@ -423,22 +429,39 @@ static void ParseTypeSpec (DeclSpec* D, int Default)
D->Type[DECODE_SIZE+1] = T_END;
break;
case ENUM:
gettok ();
if (curtok != LCURLY) {
/* Named enum */
Consume (IDENT, ERR_IDENT_EXPECTED);
case TOK_ENUM:
NextToken ();
if (curtok != TOK_LCURLY) {
/* Named enum */
if (curtok == TOK_IDENT) {
/* Find an entry with this name */
Entry = FindTagSym (CurTok.Ident);
if (Entry) {
if (SymIsLocal (Entry) && (Entry->Flags & SC_ENUM) == 0) {
Error (ERR_SYMBOL_KIND);
}
} else {
/* Insert entry into table ### */
}
/* Skip the identifier */
NextToken ();
} else {
Error (ERR_IDENT_EXPECTED);
}
}
/* Remember we have an extra type decl */
D->Flags |= DS_EXTRA_TYPE;
/* Parse the enum decl */
ParseEnumDecl ();
D->Type[0] = T_INT;
D->Type[1] = T_END;
break;
case IDENT:
case TOK_IDENT:
Entry = FindSym (CurTok.Ident);
if (Entry && IsTypeDef (Entry)) {
/* It's a typedef */
gettok ();
NextToken ();
TypeCpy (D->Type, Entry->Type);
break;
}
@ -460,39 +483,116 @@ static void ParseTypeSpec (DeclSpec* D, int Default)
static FuncDesc* ParseFuncDecl (void)
/* Parse the argument list of a function. */
static type* ParamTypeCvt (type* T)
/* If T is an array, convert it to a pointer else do nothing. Return the
* resulting type.
*/
{
unsigned UnnamedCount = 0;
unsigned Offs;
SymEntry* Sym;
type* Type;
if (IsArray (T)) {
T += DECODE_SIZE;
T[0] = T_PTR;
}
return T;
}
/* Create a new function descriptor */
FuncDesc* F = NewFuncDesc ();
/* Enter a new lexical level */
EnterFunctionLevel ();
/* Check for an empty or void parameter list */
if (curtok == RPAREN) {
/* Parameter list is empty */
F->Flags |= (FD_EMPTY | FD_ELLIPSIS);
} else if (curtok == VOID && nxttok == RPAREN) {
/* Parameter list declared as void */
gettok ();
F->Flags |= FD_VOID_PARAM;
static void ParseOldStyleParamList (FuncDesc* F)
/* Parse an old style (K&R) parameter list */
{
/* Parse params */
while (curtok != TOK_RPAREN) {
/* List of identifiers expected */
if (curtok != TOK_IDENT) {
Error (ERR_IDENT_EXPECTED);
}
/* Create a symbol table entry with type int */
AddLocalSym (CurTok.Ident, type_int, SC_AUTO | SC_PARAM | SC_DEF, 0);
/* Count arguments */
++F->ParamCount;
/* Skip the identifier */
NextToken ();
/* Check for more parameters */
if (curtok == TOK_COMMA) {
NextToken ();
} else {
break;
}
}
/* Parse params */
while (curtok != RPAREN) {
/* Skip right paren. We must explicitly check for one here, since some of
* the breaks above bail out without checking.
*/
ConsumeRParen ();
/* An optional list of type specifications follows */
while (curtok != TOK_LCURLY) {
DeclSpec Spec;
/* Read the declaration specifier */
ParseDeclSpec (&Spec, SC_AUTO, T_INT);
/* We accept only auto and register as storage class specifiers, but
* we ignore all this, since we use auto anyway.
*/
if ((Spec.StorageClass & SC_AUTO) == 0 &&
(Spec.StorageClass & SC_REGISTER) == 0) {
Error (ERR_ILLEGAL_STORAGE_CLASS);
}
/* Parse a comma separated variable list */
while (1) {
Declaration Decl;
/* Read the parameter */
ParseDecl (&Spec, &Decl, DM_NEED_IDENT);
if (Decl.Ident[0] != '\0') {
/* We have a name given. Search for the symbol */
SymEntry* Sym = FindLocalSym (Decl.Ident);
if (Sym) {
/* Found it, change the default type to the one given */
ChangeSymType (Sym, ParamTypeCvt (Decl.Type));
} else {
Error (ERR_UNKNOWN_IDENT, Decl.Ident);
}
}
if (curtok == TOK_COMMA) {
NextToken ();
} else {
break;
}
}
/* Variable list must be semicolon terminated */
ConsumeSemi ();
}
}
static void ParseAnsiParamList (FuncDesc* F)
/* Parse a new style (ANSI) parameter list */
{
/* Parse params */
while (curtok != TOK_RPAREN) {
DeclSpec Spec;
Declaration Decl;
DeclSpec Spec;
Declaration Decl;
/* Allow an ellipsis as last parameter */
if (curtok == ELLIPSIS) {
gettok ();
if (curtok == TOK_ELLIPSIS) {
NextToken ();
F->Flags |= FD_ELLIPSIS;
break;
}
@ -518,30 +618,22 @@ static FuncDesc* ParseFuncDecl (void)
/* Unnamed symbol. Generate a name that is not user accessible,
* then handle the symbol normal.
*/
AnonName (Decl.Ident, "param");
++UnnamedCount;
AnonName (Decl.Ident, "param");
F->Flags |= FD_UNNAMED_PARAMS;
/* Clear defined bit on nonames */
Spec.StorageClass &= ~SC_DEF;
}
/* If the parameter is an array, convert it to a pointer */
Type = Decl.Type;
if (IsArray (Type)) {
Type += DECODE_SIZE;
Type[0] = T_PTR;
}
/* Clear defined bit on nonames */
Spec.StorageClass &= ~SC_DEF;
}
/* Create a symbol table entry */
AddLocalSym (Decl.Ident, Type, Spec.StorageClass, 0);
AddLocalSym (Decl.Ident, ParamTypeCvt (Decl.Type), Spec.StorageClass, 0);
/* Count arguments */
++F->ParamCount;
F->ParamSize += SizeOf (Type);
/* Check for more parameters */
if (curtok == COMMA) {
gettok ();
if (curtok == TOK_COMMA) {
NextToken ();
} else {
break;
}
@ -552,25 +644,64 @@ static FuncDesc* ParseFuncDecl (void)
*/
ConsumeRParen ();
/* Check if this is a function definition */
if (curtok == TOK_LCURLY) {
/* Print an error if in strict ANSI mode and we have unnamed
* parameters.
*/
if (ANSI && (F->Flags & FD_UNNAMED_PARAMS) != 0) {
Error (ERR_MISSING_PARAM_NAME);
}
}
}
static FuncDesc* ParseFuncDecl (void)
/* Parse the argument list of a function. */
{
unsigned Offs;
SymEntry* Sym;
/* Create a new function descriptor */
FuncDesc* F = NewFuncDesc ();
/* Enter a new lexical level */
EnterFunctionLevel ();
/* Check for several special parameter lists */
if (curtok == TOK_RPAREN) {
/* Parameter list is empty */
F->Flags |= (FD_EMPTY | FD_ELLIPSIS);
} else if (curtok == TOK_VOID && nxttok == TOK_RPAREN) {
/* Parameter list declared as void */
NextToken ();
F->Flags |= FD_VOID_PARAM;
} else if (curtok == TOK_IDENT && (nxttok == TOK_COMMA || nxttok == TOK_RPAREN)) {
/* Old style (K&R) function. Assume variable param list. */
F->Flags |= (FD_OLDSTYLE | FD_ELLIPSIS);
}
/* Parse params */
if ((F->Flags & FD_OLDSTYLE) == 0) {
/* New style function */
ParseAnsiParamList (F);
} else {
/* Old style function */
ParseOldStyleParamList (F);
}
/* Assign offsets. If the function has a variable parameter list,
* there's one additional byte (the arg size).
*/
Offs = (F->Flags & FD_ELLIPSIS)? 1 : 0;
Sym = GetSymTab()->SymTail;
while (Sym) {
unsigned Size = SizeOf (Sym->Type);
Sym->V.Offs = Offs;
Offs += SizeOf (Sym->Type);
Sym = Sym->PrevSym;
}
/* Check if this is a function definition */
if (curtok == LCURLY) {
/* Print an error if in strict ANSI mode and we have unnamed
* parameters.
*/
if (ANSI && UnnamedCount > 0) {
Error (ERR_MISSING_PARAM_NAME);
}
Offs += Size;
F->ParamSize += Size;
Sym = Sym->PrevSym;
}
/* Leave the lexical level remembering the symbol tables */
@ -585,22 +716,22 @@ static FuncDesc* ParseFuncDecl (void)
static void Decl (Declaration* D, unsigned Mode)
/* Recursively process declarators. Build a type array in reverse order. */
{
if (curtok == STAR) {
gettok ();
if (curtok == TOK_STAR) {
NextToken ();
/* Allow optional const or volatile modifiers */
optional_modifiers ();
Decl (D, Mode);
*D->T++ = T_PTR;
return;
} else if (curtok == LPAREN) {
gettok ();
} else if (curtok == TOK_LPAREN) {
NextToken ();
Decl (D, Mode);
ConsumeRParen ();
} else if (curtok == FASTCALL) {
} else if (curtok == TOK_FASTCALL) {
/* Remember the current type pointer */
type* T = D->T;
/* Skip the fastcall token */
gettok ();
NextToken ();
/* Parse the function */
Decl (D, Mode);
/* Set the fastcall flag */
@ -612,35 +743,35 @@ static void Decl (Declaration* D, unsigned Mode)
}
return;
} else {
/* Things depend on Mode now:
/* Things depend on Mode now:
* - Mode == DM_NEED_IDENT means:
* we *must* have a type and a variable identifer.
* - Mode == DM_NO_IDENT means:
* we must have a type but no variable identifer
* (if there is one, it's not read).
* - Mode == DM_ACCEPT_IDENT means:
* we *may* have an identifier. If there is an identifier,
* it is read, but it is no error, if there is none.
*/
if (Mode == DM_NO_IDENT) {
D->Ident[0] = '\0';
} else if (curtok == IDENT) {
* we *must* have a type and a variable identifer.
* - Mode == DM_NO_IDENT means:
* we must have a type but no variable identifer
* (if there is one, it's not read).
* - Mode == DM_ACCEPT_IDENT means:
* we *may* have an identifier. If there is an identifier,
* it is read, but it is no error, if there is none.
*/
if (Mode == DM_NO_IDENT) {
D->Ident[0] = '\0';
} else if (curtok == TOK_IDENT) {
strcpy (D->Ident, CurTok.Ident);
gettok ();
} else {
if (Mode == DM_NEED_IDENT) {
Error (ERR_IDENT_EXPECTED);
}
D->Ident[0] = '\0';
return;
}
NextToken ();
} else {
if (Mode == DM_NEED_IDENT) {
Error (ERR_IDENT_EXPECTED);
}
D->Ident[0] = '\0';
return;
}
}
while (curtok == LBRACK || curtok == LPAREN) {
if (curtok == LPAREN) {
while (curtok == TOK_LBRACK || curtok == TOK_LPAREN) {
if (curtok == TOK_LPAREN) {
/* Function declaration */
FuncDesc* F;
gettok ();
NextToken ();
/* Parse the function declaration */
F = ParseFuncDecl ();
*D->T++ = T_FUNC;
@ -649,9 +780,9 @@ static void Decl (Declaration* D, unsigned Mode)
} else {
/* Array declaration */
unsigned long Size = 0;
gettok ();
NextToken ();
/* Read the size if it is given */
if (curtok != RBRACK) {
if (curtok != TOK_RBRACK) {
struct expent lval;
constexpr (&lval);
Size = lval.e_const;
@ -730,6 +861,19 @@ void ParseDeclSpec (DeclSpec* D, unsigned DefStorage, int DefType)
void CheckEmptyDecl (const DeclSpec* D)
/* Called after an empty type declaration (that is, a type declaration without
* a variable). Checks if the declaration does really make sense and issues a
* warning if not.
*/
{
if ((D->Flags & DS_EXTRA_TYPE) == 0) {
Warning (WARN_USELESS_DECL);
}
}
static void ParseVoidInit (void)
/* Parse an initialization of a void variable (special cc65 extension) */
{
@ -757,7 +901,7 @@ static void ParseVoidInit (void)
case T_PTR:
case T_ARRAY:
if ((lval.e_flags & E_MCTYPE) == E_TCONST) {
/* Make it word sized */
/* Make it word sized */
lval.e_const &= 0xFFFF;
}
DefineData (&lval);
@ -774,12 +918,12 @@ static void ParseVoidInit (void)
}
if (curtok != COMMA) {
if (curtok != TOK_COMMA) {
break;
}
gettok ();
NextToken ();
} while (curtok != RCURLY);
} while (curtok != TOK_RCURLY);
ConsumeRCurly ();
}
@ -810,16 +954,16 @@ static void ParseStructInit (type* Type)
/* Get a pointer to the list of symbols */
Entry = Tab->SymHead;
while (curtok != RCURLY) {
if (Entry == NULL) {
while (curtok != TOK_RCURLY) {
if (Entry == 0) {
Error (ERR_TOO_MANY_INITIALIZERS);
return;
}
ParseInit (Entry->Type);
Entry = Entry->NextSym;
if (curtok != COMMA)
if (curtok != TOK_COMMA)
break;
gettok ();
NextToken ();
}
/* Consume the closing curly brace */
@ -886,22 +1030,22 @@ void ParseInit (type *tptr)
case T_ARRAY:
sz = Decode (tptr + 1);
t = tptr + DECODE_SIZE + 1;
if ((t [0] == T_CHAR || t [0] == T_UCHAR) && curtok == SCONST) {
if ((t [0] == T_CHAR || t [0] == T_UCHAR) && curtok == TOK_SCONST) {
str = GetLiteral (curval);
count = strlen (str) + 1;
TranslateLiteralPool (curval); /* Translate into target charset */
g_defbytes (str, count);
ResetLiteralOffs (curval); /* Remove string from pool */
gettok ();
NextToken ();
} else {
ConsumeLCurly ();
count = 0;
while (curtok != RCURLY) {
while (curtok != TOK_RCURLY) {
ParseInit (tptr + DECODE_SIZE + 1);
++count;
if (curtok != COMMA)
if (curtok != TOK_COMMA)
break;
gettok ();
NextToken ();
}
ConsumeRCurly ();
}

15
src/cc65/declare.h
View File

@ -23,15 +23,16 @@
/* Masks for the Flags field in DeclSpec */
#define DS_DEF_STORAGE 0x0001U /* Default storage class used */
#define DS_DEF_TYPE 0x0002U /* Default type used */
#define DS_DEF_STORAGE 0x0001U /* Default storage class used */
#define DS_DEF_TYPE 0x0002U /* Default type used */
#define DS_EXTRA_TYPE 0x0004U /* Extra type declared */
/* Result of ParseDeclSpec */
typedef struct DeclSpec DeclSpec;
struct DeclSpec {
unsigned StorageClass; /* One of the SC_xxx flags */
unsigned StorageClass; /* One of the SC_xxx flags */
type Type [MAXTYPELEN]; /* Type of the declaration spec */
unsigned Flags; /* Bitmapped flags */
unsigned Flags; /* Bitmapped flags */
};
/* Result of ParseDecl */
@ -66,6 +67,12 @@ void ParseDecl (const DeclSpec* Spec, Declaration* D, unsigned Mode);
void ParseDeclSpec (DeclSpec* D, unsigned DefStorage, int DefType);
/* Parse a declaration specification */
void CheckEmptyDecl (const DeclSpec* D);
/* Called after an empty type declaration (that is, a type declaration without
* a variable). Checks if the declaration does really make sense and issues a
* warning if not.
*/
void ParseInit (type* tptr);
/* Parse initialization of variables */

2
src/cc65/error.c
View File

@ -65,6 +65,7 @@ static char* WarnMsg [WARN_COUNT-1] = {
"`%s' is defined but never used",
"Constant is long",
"`/*' found inside a comment",
"Useless declaration",
};
@ -147,6 +148,7 @@ static char* ErrMsg [ERR_COUNT-1] = {
"Illegal size of data type",
"__fastcall__ is not allowed for C functions",
"Variable has unknown size",
"Unknown identifier: `%s'",
};

4
src/cc65/error.h
View File

@ -60,7 +60,8 @@ enum Warnings {
WARN_UNUSED_ITEM,
WARN_CONSTANT_IS_LONG,
WARN_NESTED_COMMENT,
WARN_COUNT /* Warning count */
WARN_USELESS_DECL,
WARN_COUNT /* Warning count */
};
/* Error numbers */
@ -142,6 +143,7 @@ enum Errors {
ERR_ILLEGAL_SIZE,
ERR_FASTCALL,
ERR_UNKNOWN_SIZE,
ERR_UNKNOWN_IDENT,
ERR_COUNT /* Error count */
};

288
src/cc65/expr.c
View File

@ -49,30 +49,30 @@ typedef struct {
} GenDesc;
/* Descriptors for the operations */
static GenDesc GenMUL = { STAR, GEN_NOPUSH, g_mul };
static GenDesc GenDIV = { DIV, GEN_NOPUSH, g_div };
static GenDesc GenMOD = { MOD, GEN_NOPUSH, g_mod };
static GenDesc GenASL = { ASL, GEN_NOPUSH, g_asl };
static GenDesc GenASR = { ASR, GEN_NOPUSH, g_asr };
static GenDesc GenLT = { LT, GEN_NOPUSH, g_lt };
static GenDesc GenLE = { LE, GEN_NOPUSH, g_le };
static GenDesc GenGE = { GE, GEN_NOPUSH, g_ge };
static GenDesc GenGT = { GT, GEN_NOPUSH, g_gt };
static GenDesc GenEQ = { EQ, GEN_NOPUSH, g_eq };
static GenDesc GenNE = { NE, GEN_NOPUSH, g_ne };
static GenDesc GenAND = { AMP, GEN_NOPUSH, g_and };
static GenDesc GenXOR = { XOR, GEN_NOPUSH, g_xor };
static GenDesc GenOR = { BAR, GEN_NOPUSH, g_or };
static GenDesc GenPASGN = { PASGN, GEN_NOPUSH, g_add };
static GenDesc GenSASGN = { SASGN, GEN_NOPUSH, g_sub };
static GenDesc GenMASGN = { MASGN, GEN_NOPUSH, g_mul };
static GenDesc GenDASGN = { DASGN, GEN_NOPUSH, g_div };
static GenDesc GenMOASGN = { MOASGN, GEN_NOPUSH, g_mod };
static GenDesc GenSLASGN = { SLASGN, GEN_NOPUSH, g_asl };
static GenDesc GenSRASGN = { SRASGN, GEN_NOPUSH, g_asr };
static GenDesc GenAASGN = { AASGN, GEN_NOPUSH, g_and };
static GenDesc GenXOASGN = { XOASGN, GEN_NOPUSH, g_xor };
static GenDesc GenOASGN = { OASGN, GEN_NOPUSH, g_or };
static GenDesc GenMUL = { TOK_STAR, GEN_NOPUSH, g_mul };
static GenDesc GenDIV = { TOK_DIV, GEN_NOPUSH, g_div };
static GenDesc GenMOD = { TOK_MOD, GEN_NOPUSH, g_mod };
static GenDesc GenASL = { TOK_SHL, GEN_NOPUSH, g_asl };
static GenDesc GenASR = { TOK_SHR, GEN_NOPUSH, g_asr };
static GenDesc GenLT = { TOK_LT, GEN_NOPUSH, g_lt };
static GenDesc GenLE = { TOK_LE, GEN_NOPUSH, g_le };
static GenDesc GenGE = { TOK_GE, GEN_NOPUSH, g_ge };
static GenDesc GenGT = { TOK_GT, GEN_NOPUSH, g_gt };
static GenDesc GenEQ = { TOK_EQ, GEN_NOPUSH, g_eq };
static GenDesc GenNE = { TOK_NE, GEN_NOPUSH, g_ne };
static GenDesc GenAND = { TOK_AND, GEN_NOPUSH, g_and };
static GenDesc GenXOR = { TOK_XOR, GEN_NOPUSH, g_xor };
static GenDesc GenOR = { TOK_OR, GEN_NOPUSH, g_or };
static GenDesc GenPASGN = { TOK_PLUS_ASSIGN, GEN_NOPUSH, g_add };
static GenDesc GenSASGN = { TOK_MINUS_ASSIGN, GEN_NOPUSH, g_sub };
static GenDesc GenMASGN = { TOK_MUL_ASSIGN, GEN_NOPUSH, g_mul };
static GenDesc GenDASGN = { TOK_DIV_ASSIGN, GEN_NOPUSH, g_div };
static GenDesc GenMOASGN = { TOK_MOD_ASSIGN, GEN_NOPUSH, g_mod };
static GenDesc GenSLASGN = { TOK_SHL_ASSIGN, GEN_NOPUSH, g_asl };
static GenDesc GenSRASGN = { TOK_SHR_ASSIGN, GEN_NOPUSH, g_asr };
static GenDesc GenAASGN = { TOK_AND_ASSIGN, GEN_NOPUSH, g_and };
static GenDesc GenXOASGN = { TOK_XOR_ASSIGN, GEN_NOPUSH, g_xor };
static GenDesc GenOASGN = { TOK_OR_ASSIGN, GEN_NOPUSH, g_or };
@ -346,37 +346,37 @@ static int kcalc (int tok, long val1, long val2)
/* Calculate an operation with left and right operand constant. */
{
switch (tok) {
case EQ:
case TOK_EQ:
return (val1 == val2);
case NE:
case TOK_NE:
return (val1 != val2);
case LT:
case TOK_LT:
return (val1 < val2);
case LE:
case TOK_LE:
return (val1 <= val2);
case GE:
case TOK_GE:
return (val1 >= val2);
case GT:
case TOK_GT:
return (val1 > val2);
case BAR:
case TOK_OR:
return (val1 | val2);
case XOR:
case TOK_XOR:
return (val1 ^ val2);
case AMP:
case TOK_AND:
return (val1 & val2);
case ASR:
case TOK_SHR:
return (val1 >> val2);
case ASL:
case TOK_SHL:
return (val1 << val2);
case STAR:
case TOK_STAR:
return (val1 * val2);
case DIV:
case TOK_DIV:
if (val2 == 0) {
Error (ERR_DIV_BY_ZERO);
return 0x7FFFFFFF;
}
return (val1 / val2);
case MOD:
case TOK_MOD:
if (val2 == 0) {
Error (ERR_MOD_BY_ZERO);
return 0;
@ -411,11 +411,11 @@ static int istypeexpr (void)
{
SymEntry* Entry;
return curtok == LPAREN && (
(nxttok >= FIRSTTYPE && nxttok <= LASTTYPE) ||
(nxttok == CONST) ||
(nxttok == IDENT &&
(Entry = FindSym (NextTok.Ident)) != 0 &&
return curtok == TOK_LPAREN && (
(nxttok >= TOK_FIRSTTYPE && nxttok <= TOK_LASTTYPE) ||
(nxttok == TOK_CONST) ||
(nxttok == TOK_IDENT &&
(Entry = FindSym (NextTok.Ident)) != 0 &&
IsTypeDef (Entry))
);
}
@ -531,7 +531,7 @@ static void callfunction (struct expent* lval)
ParamSize = 0;
ParamCount = 0;
Ellipsis = 0;
while (curtok != RPAREN) {
while (curtok != TOK_RPAREN) {
/* Add a hint for the optimizer */
AddCodeHint ("param:start");
@ -606,10 +606,10 @@ static void callfunction (struct expent* lval)
AddCodeHint ("param:end");
/* Check for end of argument list */
if (curtok != COMMA) {
if (curtok != TOK_COMMA) {
break;
}
gettok ();
NextToken ();
}
/* We need the closing bracket here */
@ -644,13 +644,13 @@ void doasm (void)
*/
{
/* Skip the ASM */
gettok ();
NextToken ();
/* Need left parenthesis */
ConsumeLParen ();
/* String literal */
if (curtok != SCONST) {
if (curtok != TOK_SCONST) {
Error (ERR_STRLIT_EXPECTED);
} else {
/* Write the string directly into the output, followed by a newline */
@ -665,7 +665,7 @@ void doasm (void)
}
/* Skip the string token */
gettok ();
NextToken ();
/* Closing paren needed */
ConsumeRParen ();
@ -682,19 +682,19 @@ static int primary (struct expent* lval)
lval->e_test = 0;
/* Character and integer constants. */
if (curtok == ICONST || curtok == CCONST) {
if (curtok == TOK_ICONST || curtok == TOK_CCONST) {
lval->e_flags = E_MCONST | E_TCONST;
lval->e_tptr = curtype;
lval->e_const = curval;
gettok ();
NextToken ();
return 0;
}
/* Process parenthesized subexpression by calling the whole parser
* recursively.
*/
if (curtok == LPAREN) {
gettok ();
if (curtok == TOK_LPAREN) {
NextToken ();
memset (lval, 0, sizeof (*lval)); /* Remove any attributes */
k = hie0 (lval);
ConsumeRParen ();
@ -713,7 +713,7 @@ static int primary (struct expent* lval)
}
/* Identifier? */
if (curtok == IDENT) {
if (curtok == TOK_IDENT) {
SymEntry* Sym;
ident Ident;
@ -725,7 +725,7 @@ static int primary (struct expent* lval)
if (Sym) {
/* We found the symbol - skip the name token */
gettok ();
NextToken ();
/* The expression type is the symbol type */
lval->e_tptr = Sym->Type;
@ -791,10 +791,10 @@ static int primary (struct expent* lval)
/* We did not find the symbol. Remember the name, then skip it */
strcpy (Ident, CurTok.Ident);
gettok ();
NextToken ();
/* IDENT is either an auto-declared function or an undefined variable. */
if (curtok == LPAREN) {
if (curtok == TOK_LPAREN) {
/* Declare a function returning int. For that purpose, prepare a
* function signature for a function having an empty param list
* and returning int.
@ -821,16 +821,16 @@ static int primary (struct expent* lval)
}
/* String literal? */
if (curtok == SCONST) {
if (curtok == TOK_SCONST) {
lval->e_flags = E_MCONST | E_TLIT;
lval->e_const = curval;
lval->e_tptr = GetCharArrayType (strlen (GetLiteral (curval)));
gettok ();
NextToken ();
return 0;
}
/* ASM statement? */
if (curtok == ASM) {
if (curtok == TOK_ASM) {
doasm ();
lval->e_tptr = type_void;
lval->e_flags = E_MEXPR;
@ -839,12 +839,12 @@ static int primary (struct expent* lval)
}
/* __AX__ and __EAX__ pseudo values? */
if (curtok == AX || curtok == EAX) {
lval->e_tptr = (curtok == AX)? type_uint : type_ulong;
if (curtok == TOK_AX || curtok == TOK_EAX) {
lval->e_tptr = (curtok == TOK_AX)? type_uint : type_ulong;
lval->e_flags = E_MREG;
lval->e_test &= ~E_CC;
lval->e_const = 0;
gettok ();
NextToken ();
return 1; /* May be used as lvalue */
}
@ -873,7 +873,7 @@ static int arrayref (int k, struct expent* lval)
/* Skip the bracket */
gettok ();
NextToken ();
/* Get the type of left side */
tptr1 = lval->e_tptr;
@ -1098,8 +1098,8 @@ static int structref (int k, struct expent* lval)
int flags;
/* Skip the token and check for an identifier */
gettok ();
if (curtok != IDENT) {
NextToken ();
if (curtok != TOK_IDENT) {
Error (ERR_IDENT_EXPECTED);
lval->e_tptr = type_int;
return 0;
@ -1107,7 +1107,7 @@ static int structref (int k, struct expent* lval)
/* Get the symbol table entry and check for a struct field */
strcpy (Ident, CurTok.Ident);
gettok ();
NextToken ();
Field = FindStructField (lval->e_tptr, Ident);
if (Field == 0) {
Error (ERR_STRUCT_FIELD_MISMATCH, Ident);
@ -1143,22 +1143,22 @@ static int hie11 (struct expent *lval)
k = primary (lval);
if (curtok < LBRACK || curtok > PREF) {
if (curtok < TOK_LBRACK || curtok > TOK_PTR_REF) {
/* Not for us */
return k;
}
while (1) {
if (curtok == LBRACK) {
if (curtok == TOK_LBRACK) {
/* Array reference */
k = arrayref (k, lval);
} else if (curtok == LPAREN) {
} else if (curtok == TOK_LPAREN) {
/* Function call. Skip the opening parenthesis */
gettok ();
NextToken ();
tptr = lval->e_tptr;
if (IsFunc (tptr) || IsFuncPtr (tptr)) {
if (IsFuncPtr (tptr)) {
@ -1175,14 +1175,14 @@ static int hie11 (struct expent *lval)
}
k = 0;
} else if (curtok == DOT) {
} else if (curtok == TOK_DOT) {
if (!IsStruct (lval->e_tptr)) {
Error (ERR_STRUCT_EXPECTED);
}
k = structref (0, lval);
} else if (curtok == PREF) {
} else if (curtok == TOK_PTR_REF) {
tptr = lval->e_tptr;
if (tptr[0] != T_PTR || (tptr[1] & T_STRUCT) == 0) {
@ -1242,7 +1242,7 @@ static void pre_incdec (struct expent* lval, void (*inc) (unsigned, unsigned lon
unsigned flags;
unsigned long val;
gettok ();
NextToken ();
if ((k = hie10 (lval)) == 0) {
Error (ERR_LVALUE_EXPECTED);
return;
@ -1321,7 +1321,7 @@ static void post_incdec (struct expent *lval, int k, void (*inc) (unsigned, unsi
{
unsigned flags;
gettok ();
NextToken ();
if (k == 0) {
Error (ERR_LVALUE_EXPECTED);
return;
@ -1360,15 +1360,15 @@ static void unaryop (int tok, struct expent* lval)
int k;
unsigned flags;
gettok ();
NextToken ();
k = hie10 (lval);
if (k == 0 && lval->e_flags & E_MCONST) {
/* Value is constant */
switch (tok) {
case MINUS: lval->e_const = -lval->e_const; break;
case PLUS: break;
case COMP: lval->e_const = ~lval->e_const; break;
default: Internal ("Unexpected token: %d", tok);
case TOK_MINUS: lval->e_const = -lval->e_const; break;
case TOK_PLUS: break;
case TOK_COMP: lval->e_const = ~lval->e_const; break;
default: Internal ("Unexpected token: %d", tok);
}
} else {
/* Value is not constant */
@ -1379,9 +1379,9 @@ static void unaryop (int tok, struct expent* lval)
/* Handle the operation */
switch (tok) {
case MINUS: g_neg (flags); break;
case PLUS: break;
case COMP: g_com (flags); break;
case TOK_MINUS: g_neg (flags); break;
case TOK_PLUS: break;
case TOK_COMP: g_com (flags); break;
default: Internal ("Unexpected token: %d", tok);
}
lval->e_flags = E_MEXPR;
@ -1398,7 +1398,7 @@ static int typecast (struct expent* lval)
unsigned rflags;
/* Skip the left paren */
gettok ();
NextToken ();
/* Read the type */
ParseType (Type);
@ -1438,22 +1438,22 @@ static int hie10 (struct expent* lval)
switch (curtok) {
case INC:
case TOK_INC:
pre_incdec (lval, g_inc);
return 0;
case DEC:
case TOK_DEC:
pre_incdec (lval, g_dec);
return 0;
case PLUS:
case MINUS:
case COMP:
case TOK_PLUS:
case TOK_MINUS:
case TOK_COMP:
unaryop (curtok, lval);
return 0;
case BANG:
gettok ();
case TOK_BOOL_NOT:
NextToken ();
if (evalexpr (CF_NONE, hie10, lval) == 0) {
/* Constant expression */
lval->e_const = !lval->e_const;
@ -1464,8 +1464,8 @@ static int hie10 (struct expent* lval)
}
return 0; /* expr not storable */
case STAR:
gettok ();
case TOK_STAR:
NextToken ();
if (evalexpr (CF_NONE, hie10, lval) != 0) {
/* Expression is not const, indirect value loaded into primary */
lval->e_flags = E_MEXPR;
@ -1479,11 +1479,11 @@ static int hie10 (struct expent* lval)
}
return 1;
case AMP:
gettok ();
case TOK_AND:
NextToken ();
k = hie10 (lval);
if (k == 0) {
/* Allow the & operator with an array */
/* Allow the & operator with an array */
if (!IsArray (lval->e_tptr)) {
Error (ERR_ILLEGAL_ADDRESS);
}
@ -1495,11 +1495,11 @@ static int hie10 (struct expent* lval)
}
return 0;
case SIZEOF:
gettok ();
case TOK_SIZEOF:
NextToken ();
if (istypeexpr ()) {
type Type[MAXTYPELEN];
gettok ();
NextToken ();
lval->e_const = SizeOf (ParseType (Type));
ConsumeRParen ();
} else {
@ -1524,11 +1524,11 @@ static int hie10 (struct expent* lval)
k = hie11 (lval);
switch (curtok) {
case INC:
case TOK_INC:
post_incdec (lval, k, g_inc);
return 0;
case DEC:
case TOK_DEC:
post_incdec (lval, k, g_dec);
return 0;
@ -1550,7 +1550,7 @@ static int hie_internal (GenDesc** ops, /* List of generators */
CodeMark Mark1;
CodeMark Mark2;
GenDesc* Gen;
int tok; /* The operator token */
token_t tok; /* The operator token */
unsigned ltype, type;
int rconst; /* Operand is a constant */
@ -1570,7 +1570,7 @@ static int hie_internal (GenDesc** ops, /* List of generators */
/* Remember the operator token, then skip it */
tok = curtok;
gettok ();
NextToken ();
/* Get the lhs on stack */
Mark1 = GetCodePos ();
@ -1619,9 +1619,9 @@ static int hie_internal (GenDesc** ops, /* List of generators */
/* Second value is constant - check for div */
type |= CF_CONST;
rtype |= CF_CONST;
if (tok == DIV && lval2.e_const == 0) {
if (tok == TOK_DIV && lval2.e_const == 0) {
Error (ERR_DIV_BY_ZERO);
} else if (tok == MOD && lval2.e_const == 0) {
} else if (tok == TOK_MOD && lval2.e_const == 0) {
Error (ERR_MOD_BY_ZERO);
}
if ((Gen->Flags & GEN_NOPUSH) != 0) {
@ -1659,7 +1659,7 @@ static int hie_compare (GenDesc** ops, /* List of generators */
CodeMark Mark1;
CodeMark Mark2;
GenDesc* Gen;
int tok; /* The operator token */
token_t tok; /* The operator token */
unsigned ltype;
int rconst; /* Operand is a constant */
@ -1670,7 +1670,7 @@ static int hie_compare (GenDesc** ops, /* List of generators */
/* Remember the operator token, then skip it */
tok = curtok;
gettok ();
NextToken ();
/* Get the lhs on stack */
Mark1 = GetCodePos ();
@ -1800,7 +1800,7 @@ static void parseadd (int k, struct expent* lval)
/* Skip the PLUS token */
gettok ();
NextToken ();
/* Get the left hand side type, initialize operation flags */
lhst = lval->e_tptr;
@ -1972,7 +1972,7 @@ static void parsesub (int k, struct expent* lval)
/* Skip the MINUS token */
gettok ();
NextToken ();
/* Get the left hand side type, initialize operation flags */
lhst = lval->e_tptr;
@ -2126,9 +2126,9 @@ static int hie8 (struct expent* lval)
/* Process + and - binary operators. */
{
int k = hie9 (lval);
while (curtok == PLUS || curtok == MINUS) {
while (curtok == TOK_PLUS || curtok == TOK_MINUS) {
if (curtok == PLUS) {
if (curtok == TOK_PLUS) {
parseadd (k, lval);
} else {
parsesub (k, lval);
@ -2222,7 +2222,7 @@ static int hieAnd (struct expent* lval, unsigned TrueLab, int* BoolOp)
struct expent lval2;
k = hie2 (lval);
if (curtok == DAMP) {
if (curtok == TOK_BOOL_AND) {
/* Tell our caller that we're evaluating a boolean */
*BoolOp = 1;
@ -2242,10 +2242,10 @@ static int hieAnd (struct expent* lval, unsigned TrueLab, int* BoolOp)
g_falsejump (CF_NONE, lab);
/* Parse more boolean and's */
while (curtok == DAMP) {
while (curtok == TOK_BOOL_AND) {
/* Skip the && */
gettok ();
NextToken ();
/* Get rhs */
k = hie2 (&lval2);
@ -2255,7 +2255,7 @@ static int hieAnd (struct expent* lval, unsigned TrueLab, int* BoolOp)
exprhs (CF_FORCECHAR, k, &lval2);
/* Do short circuit evaluation */
if (curtok == DAMP) {
if (curtok == TOK_BOOL_AND) {
g_falsejump (CF_NONE, lab);
} else {
/* Last expression - will evaluate to true */
@ -2293,7 +2293,7 @@ static int hieOr (struct expent *lval)
k = hieAnd (lval, TrueLab, &BoolOp);
/* Any boolean or's? */
if (curtok == DBAR) {
if (curtok == TOK_BOOL_OR) {
/* If the expr hasn't set condition codes, set the force-test flag */
if ((lval->e_test & E_CC) == 0) {
@ -2314,10 +2314,10 @@ static int hieOr (struct expent *lval)
BoolOp = 1;
/* while there's more expr */
while (curtok == DBAR) {
while (curtok == TOK_BOOL_OR) {
/* skip the || */
gettok ();
NextToken ();
/* Get a subexpr */
AndOp = 0;
@ -2333,7 +2333,7 @@ static int hieOr (struct expent *lval)
*/
#if 0
/* Seems this sometimes generates wrong code */
if (curtok == DBAR && !AndOp) {
if (curtok == TOK_BOOL_OR && !AndOp) {
g_truejump (CF_NONE, TrueLab);
}
#else
@ -2376,8 +2376,8 @@ static int hieQuest (struct expent *lval)
k = hieOr (lval);
if (curtok == QUEST) {
gettok ();
if (curtok == TOK_QUEST) {
NextToken ();
if ((lval->e_test & E_CC) == 0) {
/* Condition codes not set, force a test */
lval->e_test |= E_FORCETEST;
@ -2481,7 +2481,7 @@ static void opeq (GenDesc* Gen, struct expent *lval, int k)
CodeMark Mark;
int MustScale;
gettok ();
NextToken ();
if (k == 0) {
Error (ERR_LVALUE_EXPECTED);
return;
@ -2578,7 +2578,7 @@ static void addsubeq (GenDesc* Gen, struct expent *lval, int k)
}
/* Skip the operator */
gettok ();
NextToken ();
/* Check if we have a pointer expression and must scale rhs */
MustScale = (lval->e_tptr [0] == T_PTR);
@ -2609,14 +2609,14 @@ static void addsubeq (GenDesc* Gen, struct expent *lval, int k)
if (lval->e_flags & E_MGLOBAL) {
/* Static variable */
flags |= GlobalModeFlags (lval->e_flags);
if (Gen->Tok == PASGN) {
if (Gen->Tok == TOK_PLUS_ASSIGN) {
g_addeqstatic (flags, lval->e_name, lval->e_const, lval2.e_const);
} else {
g_subeqstatic (flags, lval->e_name, lval->e_const, lval2.e_const);
}
} else if (lval->e_flags & E_MLOCAL) {
/* ref to localvar */
if (Gen->Tok == PASGN) {
if (Gen->Tok == TOK_PLUS_ASSIGN) {
g_addeqlocal (flags, lval->e_const, lval2.e_const);
} else {
g_subeqlocal (flags, lval->e_const, lval2.e_const);
@ -2624,14 +2624,14 @@ static void addsubeq (GenDesc* Gen, struct expent *lval, int k)
} else if (lval->e_flags & E_MCONST) {
/* ref to absolute address */
flags |= CF_ABSOLUTE;
if (Gen->Tok == PASGN) {
if (Gen->Tok == TOK_PLUS_ASSIGN) {
g_addeqstatic (flags, lval->e_const, 0, lval2.e_const);
} else {
g_subeqstatic (flags, lval->e_const, 0, lval2.e_const);
}
} else if (lval->e_flags & E_MEXPR) {
/* Address in a/x. */
if (Gen->Tok == PASGN) {
if (Gen->Tok == TOK_PLUS_ASSIGN) {
g_addeqind (flags, lval->e_const, lval2.e_const);
} else {
g_subeqind (flags, lval->e_const, lval2.e_const);
@ -2726,12 +2726,12 @@ int hie1 (struct expent* lval)
k = hieQuest (lval);
switch (curtok) {
case RPAREN:
case SEMI:
case TOK_RPAREN:
case TOK_SEMI:
return k;
case ASGN:
gettok ();
case TOK_ASSIGN:
NextToken ();
if (k == 0) {
Error (ERR_LVALUE_EXPECTED);
} else {
@ -2739,43 +2739,43 @@ int hie1 (struct expent* lval)
}
break;
case PASGN:
case TOK_PLUS_ASSIGN:
addsubeq (&GenPASGN, lval, k);
break;
case SASGN:
case TOK_MINUS_ASSIGN:
addsubeq (&GenSASGN, lval, k);
break;
case MASGN:
case TOK_MUL_ASSIGN:
opeq (&GenMASGN, lval, k);
break;
case DASGN:
case TOK_DIV_ASSIGN:
opeq (&GenDASGN, lval, k);
break;
case MOASGN:
case TOK_MOD_ASSIGN:
opeq (&GenMOASGN, lval, k);
break;
case SLASGN:
case TOK_SHL_ASSIGN:
opeq (&GenSLASGN, lval, k);
break;
case SRASGN:
case TOK_SHR_ASSIGN:
opeq (&GenSRASGN, lval, k);
break;
case AASGN:
case TOK_AND_ASSIGN:
opeq (&GenAASGN, lval, k);
break;
case XOASGN:
case TOK_XOR_ASSIGN:
opeq (&GenXOASGN, lval, k);
break;
case OASGN:
case TOK_OR_ASSIGN:
opeq (&GenOASGN, lval, k);
break;
@ -2793,8 +2793,8 @@ int hie0 (struct expent *lval)
int k;
k = hie1 (lval);
while (curtok == COMMA) {
gettok ();
while (curtok == TOK_COMMA) {
NextToken ();
k = hie1 (lval);
}
return k;
@ -2965,7 +2965,7 @@ void test (unsigned label, int cond)
* compiler itself is one big hack...): If a semicolon follows, we
* don't have a statement and may omit the jump.
*/
if (curtok != SEMI) {
if (curtok != TOK_SEMI) {
g_falsejump (CF_NONE, label);
}
}

5
src/cc65/funcdesc.c
View File

@ -51,10 +51,9 @@ FuncDesc* NewFuncDesc (void)
FuncDesc* F = xmalloc (sizeof (FuncDesc));
/* Nullify the fields */
F->Flags = 0;
F->Flags = 0;
F->SymTab = 0;
F->StructTab = 0;
F->EnumTab = 0;
F->TagTab = 0;
F->ParamCount = 0;
F->ParamSize = 0;

26
src/cc65/funcdesc.h
View File

@ -45,21 +45,27 @@
/* Masks for the Flags field in FuncDesc */
#define FD_IMPLICIT 0x0001U /* Implicitly declared function */
#define FD_EMPTY 0x0002U /* Function with empty param list */
#define FD_VOID_PARAM 0x0004U /* Function with a void param list */
#define FD_IMPLICIT 0x0001U /* Implicitly declared function */
#define FD_EMPTY 0x0002U /* Function with empty param list */
#define FD_VOID_PARAM 0x0004U /* Function with a void param list */
#define FD_ELLIPSIS 0x0008U /* Function with variable param list */
#define FD_FASTCALL 0x0010U /* __fastcall__ function */
#define FD_FASTCALL 0x0010U /* __fastcall__ function */
#define FD_OLDSTYLE 0x0020U /* Old style (K&R) function */
#define FD_UNNAMED_PARAMS 0x0040U /* Function has unnamed params */
/* Bits that must be ignored when comparing funcs */
#define FD_IGNORE (FD_IMPLICIT | FD_UNNAMED_PARAMS)
/* Function descriptor */
typedef struct FuncDesc FuncDesc;
struct FuncDesc {
unsigned Flags; /* Bitmapped flags FD_... */
struct SymTable* SymTab; /* Symbol table */
struct SymTable* StructTab; /* Struct table */
struct SymTable* EnumTab; /* Enum table */
unsigned ParamCount; /* Number of parameters */
unsigned ParamSize; /* Size of the parameters */
unsigned Flags; /* Bitmapped flags FD_... */
struct SymTable* SymTab; /* Symbol table */
struct SymTable* TagTab; /* Symbol table for structs/enums */
unsigned ParamCount; /* Number of parameters */
unsigned ParamSize; /* Size of the parameters */
};

4
src/cc65/function.c
View File

@ -157,7 +157,7 @@ int AllocLocalSpace (Function* F, unsigned Size)
/* Allocate space for the function locals, return stack offset */
{
/* Add the size */
F->LocalSize += Size;
F->LocalSize += Size;
if (F->LocalSize > F->LocalMax) {
F->LocalMax = F->LocalSize;
}
@ -213,7 +213,7 @@ void NewFunc (SymEntry* Func)
}
/* Need a starting curly brace */
if (curtok != LCURLY) {
if (curtok != TOK_LCURLY) {
Error (ERR_LCURLY_EXPECTED);
}

10
src/cc65/goto.c
View File

@ -51,10 +51,10 @@ void DoGoto (void)
/* Process a goto statement. */
{
/* Eat the "goto" */
gettok ();
NextToken ();
/* Label name must follow */
if (curtok != IDENT) {
if (curtok != TOK_IDENT) {
Error (ERR_IDENT_EXPECTED);
@ -68,7 +68,7 @@ void DoGoto (void)
}
/* Eat the label name */
gettok ();
NextToken ();
}
@ -83,8 +83,8 @@ void DoLabel (void)
g_defloclabel (Entry->V.Label);
/* Eat the ident and colon */
gettok ();
gettok ();
NextToken ();
NextToken ();
}

43
src/cc65/locals.c
View File

@ -38,7 +38,7 @@
#include "codegen.h"
#include "declare.h"
#include "expr.h"
#include "function.h" /* ## */
#include "function.h"
#include "global.h"
#include "mem.h"
#include "symtab.h"
@ -131,10 +131,10 @@ static int AllocRegVar (const SymEntry* Sym, const type* tarray)
void DeclareLocals (void)
/* Declare local variables and types. */
{
int offs = oursp; /* Current stack offset for variable */
int AutoSpace = 0; /* Unallocated space on the stack */
int Size; /* Size of an auto variable */
int Reg; /* Register variable offset */
int offs = oursp; /* Current stack offset for variable */
int AutoSpace = 0; /* Unallocated space on the stack */
int Size; /* Size of an auto variable */
int Reg; /* Register variable offset */
unsigned flags = 0; /* Code generator flags */
int SymbolSC; /* Storage class for symbol */
int ldata = 0; /* Local symbol data temp storage */
@ -155,9 +155,10 @@ void DeclareLocals (void)
}
/* Accept type only declarations */
if (curtok == SEMI) {
/* Type declaration only ### Check struct/union here */
gettok ();
if (curtok == TOK_SEMI) {
/* Type declaration only */
CheckEmptyDecl (&Spec);
NextToken ();
continue;
}
@ -205,12 +206,12 @@ void DeclareLocals (void)
g_save_regvars (Reg, Size);
/* Allow variable initialization */
if (curtok == ASGN) {
if (curtok == TOK_ASSIGN) {
struct expent lval;
/* Skip the '=' */
gettok ();
NextToken ();
/* Get the expression into the primary */
expression1 (&lval);
@ -247,7 +248,7 @@ void DeclareLocals (void)
/* Change SC in case it was register */
SymbolSC = (SymbolSC & ~SC_REGISTER) | SC_AUTO;
if (curtok == ASGN) {
if (curtok == TOK_ASSIGN) {
struct expent lval;
@ -260,7 +261,7 @@ void DeclareLocals (void)
AutoSpace = 0;
/* Skip the '=' */
gettok ();
NextToken ();
/* Setup the type flags for the assignment */
flags = Size == 1? CF_FORCECHAR : CF_NONE;
@ -307,7 +308,7 @@ void DeclareLocals (void)
g_res (Size);
/* Allow assignments */
if (curtok == ASGN) {
if (curtok == TOK_ASSIGN) {
struct expent lval;
@ -315,7 +316,7 @@ void DeclareLocals (void)
g_usecode ();
/* Skip the '=' */
gettok ();
NextToken ();
/* Get the expression into the primary */
expression1 (&lval);
@ -340,7 +341,7 @@ void DeclareLocals (void)
} else if ((SymbolSC & SC_STATIC) == SC_STATIC) {
/* Static data */
if (curtok == ASGN) {
if (curtok == TOK_ASSIGN) {
/* Initialization ahead, switch to data segment */
g_usedata ();
@ -349,7 +350,7 @@ void DeclareLocals (void)
g_defloclabel (ldata = GetLabel ());
/* Skip the '=' */
gettok ();
NextToken ();
/* Allow initialization of static vars */
ParseInit (Decl.Type);
@ -381,13 +382,13 @@ void DeclareLocals (void)
/* Add the symbol to the symbol table */
AddLocalSym (Decl.Ident, Decl.Type, SymbolSC, ldata);
if (curtok != COMMA) {
if (curtok != TOK_COMMA) {
break;
}
gettok ();
NextToken ();
}
if (curtok == SEMI) {
gettok ();
if (curtok == TOK_SEMI) {
NextToken ();
}
}
@ -466,5 +467,5 @@ void RestoreRegVars (int HaveResult)
}
}

266
src/cc65/main.c
View File

@ -9,24 +9,15 @@
#include "../common/version.h"
#include "asmcode.h"
#include "asmlabel.h"
#include "codegen.h"
#include "datatype.h"
#include "declare.h"
#include "compile.h"
#include "error.h"
#include "expr.h"
#include "function.h"
#include "global.h"
#include "include.h"
#include "io.h"
#include "litpool.h"
#include "macrotab.h"
#include "mem.h"
#include "optimize.h"
#include "pragma.h"
#include "scanner.h"
#include "stmt.h"
#include "symtab.h"
@ -54,7 +45,7 @@ static const char* TargetNames [] = {
/*****************************************************************************/
/* code */
/* Code */
/*****************************************************************************/
@ -252,259 +243,6 @@ static void DefineSym (const char* Def)
static void Parse (void)
/* Process all input text.
* At this level, only static declarations, defines, includes, and function
* definitions are legal....
*/
{
int comma;
SymEntry* Entry;
kill ();
gettok (); /* "prime" the pump */
gettok ();
while (curtok != CEOF) {
DeclSpec Spec;
Declaration Decl;
int NeedStorage;
/* Check for an ASM statement (which is allowed also on global level) */
if (curtok == ASM) {
doasm ();
ConsumeSemi ();
continue;
}
/* Check for a #pragma */
if (curtok == PRAGMA) {
DoPragma ();
continue;
}
/* Read variable defs and functions */
ParseDeclSpec (&Spec, SC_EXTERN | SC_STATIC, T_INT);
/* Don't accept illegal storage classes */
if (Spec.StorageClass == SC_AUTO || Spec.StorageClass == SC_REGISTER) {
Error (ERR_ILLEGAL_STORAGE_CLASS);
Spec.StorageClass = SC_EXTERN | SC_STATIC;
}
/* Check if this is only a type declaration */
if (curtok == SEMI) {
gettok ();
continue;
}
/* Check if we must reserve storage for the variable. We do
* this if we don't had a storage class given ("int i") or
* if the storage class is explicitly specified as static.
* This means that "extern int i" will not get storage
* allocated.
*/
NeedStorage = (Spec.StorageClass & SC_TYPEDEF) == 0 &&
((Spec.Flags & DS_DEF_STORAGE) != 0 ||
(Spec.StorageClass & (SC_STATIC | SC_EXTERN)) == SC_STATIC);
/* Read declarations for this type */
Entry = 0;
comma = 0;
while (1) {
unsigned SymFlags;
/* Read the next declaration */
ParseDecl (&Spec, &Decl, DM_NEED_IDENT);
if (Decl.Ident[0] == '\0') {
gettok ();
break;
}
/* Get the symbol flags */
SymFlags = Spec.StorageClass;
if (IsFunc (Decl.Type)) {
SymFlags |= SC_FUNC;
} else {
if (NeedStorage) {
/* We will allocate storage, variable is defined */
SymFlags |= SC_STORAGE | SC_DEF;
}
}
/* Add an entry to the symbol table */
Entry = AddGlobalSym (Decl.Ident, Decl.Type, SymFlags);
/* Reserve storage for the variable if we need to */
if (SymFlags & SC_STORAGE) {
/* Get the size of the variable */
unsigned Size = SizeOf (Decl.Type);
/* Allow initialization */
if (curtok == ASGN) {
/* We cannot initialize types of unknown size, or
* void types in non ANSI mode.
*/
if (Size == 0) {
if (!IsVoid (Decl.Type)) {
if (!IsArray (Decl.Type)) {
/* Size is unknown and not an array */
Error (ERR_UNKNOWN_SIZE);
}
} else if (ANSI) {
/* We cannot declare variables of type void */
Error (ERR_ILLEGAL_TYPE);
}
}
/* Switch to the data segment */
g_usedata ();
/* Define a label */
g_defgloblabel (Entry->Name);
/* Skip the '=' */
gettok ();
/* Parse the initialization */
ParseInit (Entry->Type);
} else {
if (IsVoid (Decl.Type)) {
/* We cannot declare variables of type void */
Error (ERR_ILLEGAL_TYPE);
} else if (Size == 0) {
/* Size is unknown */
Error (ERR_UNKNOWN_SIZE);
}
/* Switch to the BSS segment */
g_usebss ();
/* Define a label */
g_defgloblabel (Entry->Name);
/* Allocate space for uninitialized variable */
g_res (SizeOf (Entry->Type));
}
}
/* Check for end of declaration list */
if (curtok == COMMA) {
gettok ();
comma = 1;
} else {
break;
}
}
/* Function declaration? */
if (IsFunc (Decl.Type)) {
/* Function */
if (!comma) {
if (curtok == SEMI) {
/* Prototype only */
gettok ();
} else {
if (Entry) {
NewFunc (Entry);
}
}
}
} else {
/* Must be followed by a semicolon */
ConsumeSemi ();
}
}
}
static void Compile (void)
/* Compiler begins execution here. inp is input fd, output is output fd. */
{
char* Path;
/* Setup variables */
filetab[0].f_iocb = inp;
LiteralLabel = GetLabel ();
/* Add some standard paths to the include search path */
AddIncludePath ("", INC_USER); /* Current directory */
AddIncludePath ("include", INC_SYS);
#ifdef CC65_INC
AddIncludePath (CC65_INC, INC_SYS);
#else
AddIncludePath ("/usr/lib/cc65/include", INC_SYS);
#endif
Path = getenv ("CC65_INC");
if (Path) {
AddIncludePath (Path, INC_SYS | INC_USER);
}
/* Add macros that are always defined */
AddNumericMacro ("__CC65__", (VER_MAJOR * 0x100) + (VER_MINOR * 0x10) + VER_PATCH);
/* Strict ANSI macro */
if (ANSI) {
AddNumericMacro ("__STRICT_ANSI__", 1);
}
/* Optimization macros */
if (Optimize) {
AddNumericMacro ("__OPT__", 1);
if (FavourSize == 0) {
AddNumericMacro ("__OPT_i__", 1);
}
if (EnableRegVars) {
AddNumericMacro ("__OPT_r__", 1);
}
if (InlineStdFuncs) {
AddNumericMacro ("__OPT_s__", 1);
}
}
/* Create the base lexical level */
EnterGlobalLevel ();
/* Generate the code generator preamble */
g_preamble ();
/* Ok, start the ball rolling... */
Parse ();
/* Dump literal pool. */
DumpLiteralPool ();
/* Write imported/exported symbols */
EmitExternals ();
if (Debug) {
PrintLiteralStats (stdout);
PrintMacroStats (stdout);
}
/* Leave the main lexical level */
LeaveGlobalLevel ();
/* Print an error report */
ErrorReport ();
}
int main (int argc, char **argv)
{
int i;

1
src/cc65/make/gcc.mak
View File

@ -15,6 +15,7 @@ OBJS = anonname.o \
asmline.o \
check.o \
codegen.o \
compile.o \
ctrans.o \
datatype.o \
declare.o \

2
src/cc65/make/watcom.mak
View File

@ -69,6 +69,7 @@ OBJS = anonname.obj \
asmline.obj \
check.obj \
codegen.obj \
compile.obj \
ctrans.obj \
datatype.obj \
declare.obj \
@ -124,6 +125,7 @@ FILE asmlabel.obj
FILE asmline.obj
FILE check.obj
FILE codegen.obj
FILE compile.obj
FILE ctrans.obj
FILE datatype.obj
FILE declare.obj

10
src/cc65/pragma.c
View File

@ -79,7 +79,7 @@ enum {
static void StringPragma (void (*Func) (const char*))
/* Handle a pragma that expects a string parameter */
{
if (curtok != SCONST) {
if (curtok != TOK_SCONST) {
Error (ERR_STRLIT_EXPECTED);
} else {
/* Get the string */
@ -93,7 +93,7 @@ static void StringPragma (void (*Func) (const char*))
}
/* Skip the string (or error) token */
gettok ();
NextToken ();
}
@ -129,10 +129,10 @@ void DoPragma (void)
int Pragma;
/* Skip the token itself */
gettok ();
NextToken ();
/* Identifier must follow */
if (curtok != IDENT) {
if (curtok != TOK_IDENT) {
Error (ERR_IDENT_EXPECTED);
return;
}
@ -149,7 +149,7 @@ void DoPragma (void)
}
/* Skip the identifier and check for an open paren */
gettok ();
NextToken ();
ConsumeLParen ();
/* Switch for the different pragmas */

6
src/cc65/preproc.c
View File

@ -401,7 +401,7 @@ static void addmac (void)
static int Pass1 (char* from, char* to)
/* Preprocessor pass 1. Remove whitespace and comments. */
{
int c;
int c;
int done;
ident Ident;
int HaveParen;
@ -586,8 +586,8 @@ static int doiff (int skip)
xlateline ();
/* Prime the token pump (remove old tokens from the stream) */
gettok ();
gettok ();
NextToken ();
NextToken ();
/* Call the expression parser */
constexpr (&lval);

221
src/cc65/scanner.c
View File

@ -48,44 +48,45 @@ static struct Keyword {
unsigned char Tok; /* The token */
unsigned char Type; /* Token type */
} Keywords [] = {
{ "__AX__", AX, TT_C },
{ "__EAX__", EAX, TT_C },
{ "__asm__", ASM, TT_C },
{ "__fastcall__", FASTCALL, TT_C },
{ "asm", ASM, TT_EXT },
{ "auto", AUTO, TT_C },
{ "break", BREAK, TT_C },
{ "case", CASE, TT_C },
{ "char", CHAR, TT_C },
{ "const", CONST, TT_C },
{ "continue", CONTINUE, TT_C },
{ "default", DEFAULT, TT_C },
{ "do", DO, TT_C },
{ "double", DOUBLE, TT_C },
{ "else", ELSE, TT_C },
{ "enum", ENUM, TT_C },
{ "extern", EXTERN, TT_C },
{ "fastcall", FASTCALL, TT_EXT },
{ "float", FLOAT, TT_C },
{ "for", FOR, TT_C },
{ "goto", GOTO, TT_C },
{ "if", IF, TT_C },
{ "int", INT, TT_C },
{ "long", LONG, TT_C },
{ "register", REGISTER, TT_C },
{ "return", RETURN, TT_C },
{ "short", SHORT, TT_C },
{ "signed", SIGNED, TT_C },
{ "sizeof", SIZEOF, TT_C },
{ "static", STATIC, TT_C },
{ "struct", STRUCT, TT_C },
{ "switch", SWITCH, TT_C },
{ "typedef", TYPEDEF, TT_C },
{ "union", UNION, TT_C },
{ "unsigned", UNSIGNED, TT_C },
{ "void", VOID, TT_C },
{ "volatile", VOLATILE, TT_C },
{ "while", WHILE, TT_C },
{ "__AX__", TOK_AX, TT_C },
{ "__EAX__", TOK_EAX, TT_C },
{ "__asm__", TOK_ASM, TT_C },
{ "__attribute__", TOK_ATTRIBUTE, TT_C },
{ "__fastcall__", TOK_FASTCALL, TT_C },
{ "asm", TOK_ASM, TT_EXT },
{ "auto", TOK_AUTO, TT_C },
{ "break", TOK_BREAK, TT_C },
{ "case", TOK_CASE, TT_C },
{ "char", TOK_CHAR, TT_C },
{ "const", TOK_CONST, TT_C },
{ "continue", TOK_CONTINUE, TT_C },
{ "default", TOK_DEFAULT, TT_C },
{ "do", TOK_DO, TT_C },
{ "double", TOK_DOUBLE, TT_C },
{ "else", TOK_ELSE, TT_C },
{ "enum", TOK_ENUM, TT_C },
{ "extern", TOK_EXTERN, TT_C },
{ "fastcall", TOK_FASTCALL, TT_EXT },
{ "float", TOK_FLOAT, TT_C },
{ "for", TOK_FOR, TT_C },
{ "goto", TOK_GOTO, TT_C },
{ "if", TOK_IF, TT_C },
{ "int", TOK_INT, TT_C },
{ "long", TOK_LONG, TT_C },
{ "register", TOK_REGISTER, TT_C },
{ "return", TOK_RETURN, TT_C },
{ "short", TOK_SHORT, TT_C },
{ "signed", TOK_SIGNED, TT_C },
{ "sizeof", TOK_SIZEOF, TT_C },
{ "static", TOK_STATIC, TT_C },
{ "struct", TOK_STRUCT, TT_C },
{ "switch", TOK_SWITCH, TT_C },
{ "typedef", TOK_TYPEDEF, TT_C },
{ "union", TOK_UNION, TT_C },
{ "unsigned", TOK_UNSIGNED, TT_C },
{ "void", TOK_VOID, TT_C },
{ "volatile", TOK_VOLATILE, TT_C },
{ "while", TOK_WHILE, TT_C },
};
#define KEY_COUNT (sizeof (Keywords) / sizeof (Keywords [0]))
@ -123,7 +124,7 @@ static int FindKey (char* Key)
if (K && (K->Type != TT_EXT || ANSI == 0)) {
return K->Tok;
} else {
return IDENT;
return TOK_IDENT;
}
}
@ -303,7 +304,7 @@ static void CharConst (void)
}
/* Setup values and attributes */
nxttok = CCONST;
nxttok = TOK_CCONST;
nxtval = SignExtendChar (ctrans (c)); /* Translate into target charset */
nxttype = type_int; /* Character constants have type int */
}
@ -314,7 +315,7 @@ static void StringConst (void)
/* Parse a quoted string */
{
nxtval = GetLiteralOffs ();
nxttok = SCONST;
nxttok = TOK_SCONST;
/* Be sure to concatenate strings */
while (*lptr == '\"') {
@ -344,7 +345,7 @@ static void StringConst (void)
void gettok (void)
void NextToken (void)
/* Get next token from input stream */
{
char c;
@ -359,7 +360,7 @@ void gettok (void)
/* Skip spaces and read the next line if needed */
if (skipwhite () == 0) {
/* End of file reached */
nxttok = CEOF;
nxttok = TOK_CEOF;
return;
}
@ -460,14 +461,14 @@ void gettok (void)
/* Set the value and the token */
nxtval = k;
nxttok = ICONST;
nxttok = TOK_ICONST;
return;
}
if (issym (token)) {
/* Check for a keyword */
if ((nxttok = FindKey (token)) != IDENT) {
if ((nxttok = FindKey (token)) != TOK_IDENT) {
/* Reserved word found */
return;
}
@ -476,15 +477,15 @@ void gettok (void)
/* Special symbols */
if (strcmp (token, "__FILE__") == 0) {
nxtval = AddLiteral (fin);
nxttok = SCONST;
nxttok = TOK_SCONST;
return;
} else if (strcmp (token, "__LINE__") == 0) {
nxttok = ICONST;
nxttok = TOK_ICONST;
nxtval = ln;
nxttype = type_int;
return;
} else if (strcmp (token, "__fixargs__") == 0) {
nxttok = ICONST;
nxttok = TOK_ICONST;
nxtval = GetParamSize (CurrentFunc);
nxttype = type_uint;
return;
@ -492,7 +493,7 @@ void gettok (void)
/* __func__ is only defined in functions */
if (CurrentFunc) {
nxtval = AddLiteral (GetFuncName (CurrentFunc));
nxttok = SCONST;
nxttok = TOK_SCONST;
return;
}
}
@ -500,7 +501,7 @@ void gettok (void)
/* No reserved word but identifier */
strcpy (NextTok.Ident, token);
NextTok.Tok = IDENT;
NextTok.Tok = TOK_IDENT;
return;
}
@ -509,9 +510,9 @@ void gettok (void)
case '!':
if (*++lptr == '=') {
SetTok (NE);
SetTok (TOK_NE);
} else {
nxttok = BANG;
nxttok = TOK_BOOL_NOT;
}
break;
@ -521,22 +522,22 @@ void gettok (void)
case '%':
if (*++lptr == '=') {
SetTok (MOASGN);
SetTok (TOK_MOD_ASSIGN);
} else {
nxttok = MOD;
nxttok = TOK_MOD;
}
break;
case '&':
switch (*++lptr) {
case '&':
SetTok (DAMP);
SetTok (TOK_BOOL_AND);
break;
case '=':
SetTok (AASGN);
SetTok (TOK_AND_ASSIGN);
break;
default:
nxttok = AMP;
nxttok = TOK_AND;
}
break;
@ -545,167 +546,167 @@ void gettok (void)
break;
case '(':
SetTok (LPAREN);
SetTok (TOK_LPAREN);
break;
case ')':
SetTok (RPAREN);
SetTok (TOK_RPAREN);
break;
case '*':
if (*++lptr == '=') {
SetTok (MASGN);
SetTok (TOK_MUL_ASSIGN);
} else {
nxttok = STAR;
nxttok = TOK_STAR;
}
break;
case '+':
switch (*++lptr) {
case '+':
SetTok (INC);
SetTok (TOK_INC);
break;
case '=':
SetTok (PASGN);
SetTok (TOK_PLUS_ASSIGN);
break;
default:
nxttok = PLUS;
nxttok = TOK_PLUS;
}
break;
case ',':
SetTok (COMMA);
SetTok (TOK_COMMA);
break;
case '-':
switch (*++lptr) {
case '-':
SetTok (DEC);
SetTok (TOK_DEC);
break;
case '=':
SetTok (SASGN);
SetTok (TOK_MINUS_ASSIGN);
break;
case '>':
SetTok (PREF);
SetTok (TOK_PTR_REF);
break;
default:
nxttok = MINUS;
nxttok = TOK_MINUS;
}
break;
case '.':
if (*++lptr == '.') {
if (*++lptr == '.') {
SetTok (ELLIPSIS);
SetTok (TOK_ELLIPSIS);
} else {
unknown (*lptr);
}
} else {
nxttok = DOT;
nxttok = TOK_DOT;
}
break;
case '/':
if (*++lptr == '=') {
SetTok (DASGN);
SetTok (TOK_DIV_ASSIGN);
} else {
nxttok = DIV;
nxttok = TOK_DIV;
}
break;
case ':':
SetTok (COLON);
SetTok (TOK_COLON);
break;
case ';':
SetTok (SEMI);
SetTok (TOK_SEMI);
break;
case '<':
switch (*++lptr) {
case '=':
SetTok (LE);
SetTok (TOK_LE);
break;
case '<':
if (*++lptr == '=') {
SetTok (SLASGN);
SetTok (TOK_SHL_ASSIGN);
} else {
nxttok = ASL;
nxttok = TOK_SHL;
}
break;
default:
nxttok = LT;
nxttok = TOK_LT;
}
break;
case '=':
if (*++lptr == '=') {
SetTok (EQ);
SetTok (TOK_EQ);
} else {
nxttok = ASGN;
nxttok = TOK_ASSIGN;
}
break;
case '>':
switch (*++lptr) {
case '=':
SetTok (GE);
SetTok (TOK_GE);
break;
case '>':
if (*++lptr == '=') {
SetTok (SRASGN);
SetTok (TOK_SHR_ASSIGN);
} else {
nxttok = ASR;
nxttok = TOK_SHR;
}
break;
default:
nxttok = GT;
nxttok = TOK_GT;
}
break;
case '?':
SetTok (QUEST);
SetTok (TOK_QUEST);
break;
case '[':
SetTok (LBRACK);
SetTok (TOK_LBRACK);
break;
case ']':
SetTok (RBRACK);
SetTok (TOK_RBRACK);
break;
case '^':
if (*++lptr == '=') {
SetTok (XOASGN);
SetTok (TOK_XOR_ASSIGN);
} else {
nxttok = XOR;
nxttok = TOK_XOR;
}
break;
case '{':
SetTok (LCURLY);
SetTok (TOK_LCURLY);
break;
case '|':
switch (*++lptr) {
case '|':
SetTok (DBAR);
SetTok (TOK_BOOL_OR);
break;
case '=':
SetTok (OASGN);
SetTok (TOK_OR_ASSIGN);
break;
default:
nxttok = BAR;
nxttok = TOK_OR;
}
break;
case '}':
SetTok (RCURLY);
SetTok (TOK_RCURLY);
break;
case '~':
SetTok (COMP);
SetTok (TOK_COMP);
break;
case '#':
@ -714,7 +715,7 @@ void gettok (void)
/* OOPS - should not happen */
Error (ERR_CPP_DIRECTIVE_EXPECTED);
}
nxttok = PRAGMA;
nxttok = TOK_PRAGMA;
break;
default:
@ -726,13 +727,13 @@ void gettok (void)
void Consume (unsigned Token, unsigned char ErrNum)
void Consume (token_t Token, unsigned ErrNum)
/* Eat token if it is the next in the input stream, otherwise print an error
* message.
*/
{
if (curtok == Token) {
gettok ();
NextToken ();
} else {
Error (ErrNum);
}
@ -743,7 +744,7 @@ void Consume (unsigned Token, unsigned char ErrNum)
void ConsumeColon (void)
/* Check for a colon and skip it. */
{
Consume (COLON, ERR_COLON_EXPECTED);
Consume (TOK_COLON, ERR_COLON_EXPECTED);
}
@ -752,12 +753,12 @@ void ConsumeSemi (void)
/* Check for a semicolon and skip it. */
{
/* Try do be smart about typos... */
if (curtok == SEMI) {
gettok ();
if (curtok == TOK_SEMI) {
NextToken ();
} else {
Error (ERR_SEMICOLON_EXPECTED);
if (curtok == COLON || curtok == COMMA) {
gettok ();
if (curtok == TOK_COLON || curtok == TOK_COMMA) {
NextToken ();
}
}
}
@ -767,7 +768,7 @@ void ConsumeSemi (void)
void ConsumeLParen (void)
/* Check for a left parenthesis and skip it */
{
Consume (LPAREN, ERR_LPAREN_EXPECTED);
Consume (TOK_LPAREN, ERR_LPAREN_EXPECTED);
}
@ -775,7 +776,7 @@ void ConsumeLParen (void)
void ConsumeRParen (void)
/* Check for a right parenthesis and skip it */
{
Consume (RPAREN, ERR_RPAREN_EXPECTED);
Consume (TOK_RPAREN, ERR_RPAREN_EXPECTED);
}
@ -783,7 +784,7 @@ void ConsumeRParen (void)
void ConsumeLBrack (void)
/* Check for a left bracket and skip it */
{
Consume (LBRACK, ERR_LBRACK_EXPECTED);
Consume (TOK_LBRACK, ERR_LBRACK_EXPECTED);
}
@ -791,7 +792,7 @@ void ConsumeLBrack (void)
void ConsumeRBrack (void)
/* Check for a right bracket and skip it */
{
Consume (RBRACK, ERR_RBRACK_EXPECTED);
Consume (TOK_RBRACK, ERR_RBRACK_EXPECTED);
}
@ -799,7 +800,7 @@ void ConsumeRBrack (void)
void ConsumeLCurly (void)
/* Check for a left curly brace and skip it */
{
Consume (LCURLY, ERR_LCURLY_EXPECTED);
Consume (TOK_LCURLY, ERR_LCURLY_EXPECTED);
}
@ -807,7 +808,7 @@ void ConsumeLCurly (void)
void ConsumeRCurly (void)
/* Check for a right curly brace and skip it */
{
Consume (RCURLY, ERR_RCURLY_EXPECTED);
Consume (TOK_RCURLY, ERR_RCURLY_EXPECTED);
}

199
src/cc65/scanner.h
View File

@ -17,115 +17,120 @@
/*****************************************************************************/
/* token definitions */
/* Token definitions */
/*****************************************************************************/
#define CEOF 0
typedef enum token_t {
TOK_CEOF,
#define AUTO 10
#define EXTERN 11
#define REGISTER 12
#define STATIC 13
#define TYPEDEF 14
#define ENUM 15
#define CONST 16
#define VOLATILE 17
TOK_AUTO,
TOK_EXTERN,
TOK_REGISTER,
TOK_STATIC,
TOK_TYPEDEF,
TOK_ENUM,
TOK_CONST,
TOK_VOLATILE,
#define FIRSTTYPE 19
#define CHAR 19
#define INT 20
#define DOUBLE 21
#define FLOAT 22
#define LONG 23
#define UNSIGNED 24
#define SIGNED 25
#define SHORT 26
#define STRUCT 27
#define UNION 28
#define VOID 29
#define LASTTYPE 29
/* Tokens denoting types */
TOK_FIRSTTYPE,
TOK_CHAR = TOK_FIRSTTYPE,
TOK_INT,
TOK_DOUBLE,
TOK_FLOAT,
TOK_LONG,
TOK_UNSIGNED,
TOK_SIGNED,
TOK_SHORT,
TOK_STRUCT,
TOK_UNION,
TOK_VOID,
TOK_LASTTYPE = TOK_VOID,
#define DO 30
#define FOR 31
#define GOTO 32
#define IF 33
#define RETURN 34
#define SWITCH 35
#define WHILE 36
/* Control statements */
TOK_DO,
TOK_FOR,
TOK_GOTO,
TOK_IF,
TOK_RETURN,
TOK_SWITCH,
TOK_WHILE,
#define ASM 40
#define CASE 41
#define DEFAULT 42
#define BREAK 43
#define CONTINUE 44
#define ELSE 45
#define ELLIPSIS 46
#define SIZEOF 47
TOK_ASM,
TOK_CASE,
TOK_DEFAULT,
TOK_BREAK,
TOK_CONTINUE,
TOK_ELSE,
TOK_ELLIPSIS,
TOK_SIZEOF,
#define IDENT 50
#define SEMI 51
TOK_IDENT,
TOK_SEMI,
/* primary operators */
#define LBRACK 52
#define LPAREN 53
#define DOT 54
#define PREF 55
/* Primary operators */
TOK_LBRACK,
TOK_LPAREN,
TOK_DOT,
TOK_PTR_REF,
#define LCURLY 56
#define RBRACK 57
#define COMP 58
#define INC 59
#define PASGN 60
#define PLUS 61
#define COMMA 62
#define DEC 63
#define SASGN 64
#define RCURLY 65
#define MINUS 66
#define MASGN 67
#define STAR 68
#define DASGN 69
#define DIV 70
#define DAMP 71
#define AASGN 72
#define AMP 73
#define NE 74
#define BANG 75
#define DBAR 76
#define OASGN 77
#define BAR 78
#define EQ 79
#define ASGN 80
#define SLASGN 81
#define ASL 82
TOK_LCURLY,
TOK_RBRACK,
TOK_COMP,
TOK_INC,
TOK_PLUS_ASSIGN,
TOK_PLUS,
TOK_COMMA,
TOK_DEC,
TOK_MINUS_ASSIGN,
TOK_RCURLY,
TOK_MINUS,
TOK_MUL_ASSIGN,
TOK_STAR,
TOK_DIV_ASSIGN,
TOK_DIV,
TOK_BOOL_AND,
TOK_AND_ASSIGN,
TOK_AND,
TOK_NE,
TOK_BOOL_NOT,
TOK_BOOL_OR,
TOK_OR_ASSIGN,
TOK_OR,
TOK_EQ,
TOK_ASSIGN,
TOK_SHL_ASSIGN,
TOK_SHL,
/* inequalities */
#define LE 83
#define LT 84
#define GE 85
#define GT 86
/* Inequalities */
TOK_LE,
TOK_LT,
TOK_GE,
TOK_GT,
#define SRASGN 87
#define ASR 88
#define XOASGN 89
#define XOR 90
#define MOASGN 91
#define MOD 92
#define QUEST 93
#define COLON 94
#define RPAREN 95
#define SCONST 96
#define ICONST 97
#define CCONST 98
#define FCONST 99
TOK_SHR_ASSIGN,
TOK_SHR,
TOK_XOR_ASSIGN,
TOK_XOR,
TOK_MOD_ASSIGN,
TOK_MOD,
TOK_QUEST,
TOK_COLON,
TOK_RPAREN,
TOK_SCONST,
TOK_ICONST,
TOK_CCONST,
TOK_FCONST,
#define FASTCALL 100
#define AX 101
#define EAX 102
TOK_ATTRIBUTE,
TOK_FASTCALL,
TOK_AX,
TOK_EAX,
#define PRAGMA 110
TOK_PRAGMA
} token_t;
@ -138,7 +143,7 @@
/* Token stuff */
typedef struct Token_ Token;
struct Token_ {
unsigned Tok; /* The token itself */
token_t Tok; /* The token itself */
long IVal; /* The integer attribute */
ident Ident; /* Identifier if IDENT */
unsigned Pos; /* Source line where the token comes from */
@ -173,10 +178,10 @@ void symname (char* s);
int issym (char* s);
/* Get symbol from input stream or return 0 if not a symbol. */
void gettok (void);
void NextToken (void);
/* Get next token from input stream */
void Consume (unsigned Token, unsigned char ErrNum);
void Consume (token_t Token, unsigned ErrNum);
/* Eat token if it is the next in the input stream, otherwise print an error
* message.
*/

104
src/cc65/stmt.c
View File

@ -61,7 +61,7 @@ static int doif (void)
int gotbreak;
/* Skip the if */
gettok ();
NextToken ();
/* Generate a jump label and parse the condition */
flab1 = GetLabel ();
@ -71,7 +71,7 @@ static int doif (void)
gotbreak = statement ();
/* Else clause present? */
if (curtok != ELSE) {
if (curtok != TOK_ELSE) {
g_defloclabel (flab1);
/* Since there's no else clause, we're not sure, if the a break
@ -82,7 +82,7 @@ static int doif (void)
} else {
/* Skip the else */
gettok ();
NextToken ();
/* If we had some sort of break statement at the end of the if clause,
* there's no need to generate an additional jump around the else
@ -116,7 +116,7 @@ static void dowhile (char wtype)
int loop;
int lab;
gettok ();
NextToken ();
loop = GetLabel ();
lab = GetLabel ();
addloop (oursp, loop, lab, 0, 0);
@ -132,9 +132,9 @@ static void dowhile (char wtype)
* do another small optimization here, and use a conditional jump
* instead an absolute one.
*/
if (curtok == SEMI) {
if (curtok == TOK_SEMI) {
/* Shortcut */
gettok ();
NextToken ();
/* Use a conditional jump */
g_truejump (CF_NONE, loop);
} else {
@ -148,7 +148,7 @@ static void dowhile (char wtype)
/* Do loop */
statement ();
Consume (WHILE, ERR_WHILE_EXPECTED);
Consume (TOK_WHILE, ERR_WHILE_EXPECTED);
test (loop, 1);
ConsumeSemi ();
g_defloclabel (lab);
@ -167,8 +167,8 @@ static void doreturn (void)
int HaveVal = 0; /* Do we have a return value in ax? */
gettok ();
if (curtok != SEMI) {
NextToken ();
if (curtok != TOK_SEMI) {
if (HasVoidReturn (CurrentFunc)) {
Error (ERR_CANNOT_RETURN_VALUE);
}
@ -198,7 +198,7 @@ static void dobreak (void)
{
struct loopdesc* l;
gettok ();
NextToken ();
if ((l = currentloop ()) == 0) {
/* Error: No current loop */
return;
@ -214,7 +214,7 @@ static void docontinue (void)
{
struct loopdesc* l;
gettok ();
NextToken ();
if ((l = currentloop ()) == 0) {
/* Error: Not in loop */
return;
@ -263,9 +263,9 @@ static void cascadeswitch (struct expent* eval)
/* Parse the labels */
lcount = 0;
while (curtok != RCURLY) {
while (curtok != TOK_RCURLY) {
if (curtok == CASE || curtok == DEFAULT) {
if (curtok == TOK_CASE || curtok == TOK_DEFAULT) {
/* If the code for the previous selector did not end with a
* break statement, we must jump over the next selector test.
@ -284,16 +284,16 @@ static void cascadeswitch (struct expent* eval)
nextlab = 0;
}
while (curtok == CASE || curtok == DEFAULT) {
while (curtok == TOK_CASE || curtok == TOK_DEFAULT) {
/* Parse the selector */
if (curtok == CASE) {
if (curtok == TOK_CASE) {
/* Count labels */
++lcount;
/* Skip the "case" token */
gettok ();
NextToken ();
/* Read the selector expression */
constexpr (&lval);
@ -343,13 +343,13 @@ static void cascadeswitch (struct expent* eval)
/* If another case follows, we will jump to the code if
* the condition is true.
*/
if (curtok == CASE) {
if (curtok == TOK_CASE) {
/* Create a code label if needed */
if (codelab == 0) {
codelab = GetLabel ();
}
g_falsejump (CF_NONE, codelab);
} else if (curtok != DEFAULT) {
} else if (curtok != TOK_DEFAULT) {
/* No case follows, jump to next selector */
if (nextlab == 0) {
nextlab = GetLabel ();
@ -360,13 +360,13 @@ static void cascadeswitch (struct expent* eval)
} else {
/* Default case */
gettok ();
NextToken ();
/* Skip the colon */
ConsumeColon ();
/* Handle the pathologic case: DEFAULT followed by CASE */
if (curtok == CASE) {
if (curtok == TOK_CASE) {
if (codelab == 0) {
codelab = GetLabel ();
}
@ -385,7 +385,7 @@ static void cascadeswitch (struct expent* eval)
}
/* Parse statements */
if (curtok != RCURLY) {
if (curtok != TOK_RCURLY) {
havebreak = statement ();
}
}
@ -396,7 +396,7 @@ static void cascadeswitch (struct expent* eval)
}
/* Eat the closing curly brace */
gettok ();
NextToken ();
/* Define the exit label and, if there's a next label left, create this
* one, too.
@ -445,15 +445,15 @@ static void tableswitch (struct expent* eval)
/* Jump behind the code for the CASE labels */
g_jump (lcase = GetLabel ());
lcount = 0;
while (curtok != RCURLY) {
if (curtok == CASE || curtok == DEFAULT) {
while (curtok != TOK_RCURLY) {
if (curtok == TOK_CASE || curtok == TOK_DEFAULT) {
if (lcount >= CASE_MAX) {
Fatal (FAT_TOO_MANY_CASE_LABELS);
}
label = GetLabel ();
do {
if (curtok == CASE) {
gettok ();
if (curtok == TOK_CASE) {
NextToken ();
constexpr (&lval);
if (!IsInt (lval.e_tptr)) {
Error (ERR_ILLEGAL_TYPE);
@ -463,15 +463,15 @@ static void tableswitch (struct expent* eval)
++p;
++lcount;
} else {
gettok ();
NextToken ();
dlabel = label;
}
ConsumeColon ();
} while (curtok == CASE || curtok == DEFAULT);
} while (curtok == TOK_CASE || curtok == TOK_DEFAULT);
g_defloclabel (label);
havebreak = 0;
}
if (curtok != RCURLY) {
if (curtok != TOK_RCURLY) {
havebreak = statement ();
}
}
@ -482,7 +482,7 @@ static void tableswitch (struct expent* eval)
}
/* Eat the closing curly brace */
gettok ();
NextToken ();
/* If the last statement doesn't have a break or return, add one */
if (!havebreak) {
@ -526,7 +526,7 @@ static void doswitch (void)
struct expent eval; /* Switch statement expression */
/* Eat the "switch" */
gettok ();
NextToken ();
/* Read the switch expression */
ConsumeLParen ();
@ -557,19 +557,19 @@ static void dofor (void)
struct expent lval2;
struct expent lval3;
gettok ();
NextToken ();
loop = GetLabel ();
lab = GetLabel ();
linc = GetLabel ();
lstat = GetLabel ();
addloop (oursp, loop, lab, linc, lstat);
ConsumeLParen ();
if (curtok != SEMI) { /* exp1 */
if (curtok != TOK_SEMI) { /* exp1 */
expression (&lval1);
}
ConsumeSemi ();
g_defloclabel (loop);
if (curtok != SEMI) { /* exp2 */
if (curtok != TOK_SEMI) { /* exp2 */
boolexpr (&lval2);
g_truejump (CF_NONE, lstat);
g_jump (lab);
@ -578,7 +578,7 @@ static void dofor (void)
}
ConsumeSemi ();
g_defloclabel (linc);
if (curtok != RPAREN) { /* exp3 */
if (curtok != TOK_RPAREN) { /* exp3 */
expression (&lval3);
}
ConsumeRParen ();
@ -601,7 +601,7 @@ static int statement (void)
struct expent lval;
/* */
if (curtok == IDENT && nxttok == COLON) {
if (curtok == TOK_IDENT && nxttok == TOK_COLON) {
/* Special handling for a label */
DoLabel ();
@ -610,54 +610,54 @@ static int statement (void)
switch (curtok) {
case LCURLY:
case TOK_LCURLY:
return compound ();
case IF:
case TOK_IF:
return doif ();
case WHILE:
case TOK_WHILE:
dowhile ('w');
break;
case DO:
case TOK_DO:
dowhile ('d');
break;
case SWITCH:
case TOK_SWITCH:
doswitch ();
break;
case RETURN:
case TOK_RETURN:
doreturn ();
ConsumeSemi ();
return 1;
case BREAK:
case TOK_BREAK:
dobreak ();
ConsumeSemi ();
return 1;
case CONTINUE:
case TOK_CONTINUE:
docontinue ();
ConsumeSemi ();
return 1;
case FOR:
case TOK_FOR:
dofor ();
break;
case GOTO:
case TOK_GOTO:
DoGoto ();
ConsumeSemi ();
return 1;
case SEMI:
case TOK_SEMI:
/* ignore it. */
gettok ();
NextToken ();
break;
case PRAGMA:
case TOK_PRAGMA:
DoPragma ();
break;
@ -682,7 +682,7 @@ int compound (void)
int oldsp;
/* eat LCURLY */
gettok ();
NextToken ();
/* Remember the stack at block entry */
oldsp = oursp;
@ -698,8 +698,8 @@ int compound (void)
/* Now process statements in the function body */
isbrk = 0;
while (curtok != RCURLY) {
if (curtok == CEOF)
while (curtok != TOK_RCURLY) {
if (curtok == TOK_CEOF)
break;
else {
isbrk = statement ();

136
src/cc65/symtab.c
View File

@ -37,7 +37,7 @@
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include "../common/hashstr.h"
#include "asmcode.h"
@ -86,10 +86,8 @@ SymTable EmptySymTab = {
static unsigned LexicalLevel = 0; /* For safety checks */
static SymTable* SymTab0 = 0;
static SymTable* SymTab = 0;
static SymTable* StructTab0 = 0;
static SymTable* StructTab = 0;
static SymTable* EnumTab0 = 0;
static SymTable* EnumTab = 0;
static SymTable* TagTab0 = 0;
static SymTable* TagTab = 0;
static SymTable* LabelTab = 0;
@ -207,11 +205,8 @@ void EnterGlobalLevel (void)
/* Create and assign the symbol table */
SymTab0 = SymTab = NewSymTable (SYMTAB_SIZE_GLOBAL);
/* Create and assign the struct table */
StructTab0 = StructTab = NewSymTable (SYMTAB_SIZE_GLOBAL);
/* Create and assign the enum table */
EnumTab0 = EnumTab = NewSymTable (SYMTAB_SIZE_GLOBAL);
/* Create and assign the tag table */
TagTab0 = TagTab = NewSymTable (SYMTAB_SIZE_GLOBAL);
}
@ -228,14 +223,12 @@ void LeaveGlobalLevel (void)
/* Dump the tables if requested */
if (Debug) {
PrintSymTable (SymTab0, stdout, "Global symbol table");
PrintSymTable (StructTab0, stdout, "Global struct table");
PrintSymTable (EnumTab0, stdout, "Global enum table");
PrintSymTable (TagTab0, stdout, "Global tag table");
}
/* Don't delete the symbol and struct tables! */
SymTab0 = SymTab = 0;
StructTab0 = StructTab = 0;
EnumTab0 = EnumTab = 0;
SymTab0 = SymTab = 0;
TagTab0 = TagTab = 0;
}
@ -253,15 +246,10 @@ void EnterFunctionLevel (void)
S->PrevTab = SymTab;
SymTab = S;
/* Get a new struct table and make it current */
/* Get a new tag table and make it current */
S = NewSymTable (SYMTAB_SIZE_FUNCTION);
S->PrevTab = StructTab;
StructTab = S;
/* Get a new enum table and make it current */
S = NewSymTable (SYMTAB_SIZE_FUNCTION);
S->PrevTab = EnumTab;
EnumTab = S;
S->PrevTab = TagTab;
TagTab = S;
/* Create and assign a new label table */
LabelTab = NewSymTable (SYMTAB_SIZE_LABEL);
@ -276,14 +264,12 @@ void RememberFunctionLevel (struct FuncDesc* F)
--LexicalLevel;
/* Remember the tables */
F->SymTab = SymTab;
F->StructTab = StructTab;
F->EnumTab = EnumTab;
F->SymTab = SymTab;
F->TagTab = TagTab;
/* Don't delete the tables */
SymTab = SymTab->PrevTab;
StructTab = StructTab->PrevTab;
EnumTab = EnumTab->PrevTab;
SymTab = SymTab->PrevTab;
TagTab = TagTab->PrevTab;
}
@ -298,11 +284,8 @@ void ReenterFunctionLevel (struct FuncDesc* F)
F->SymTab->PrevTab = SymTab;
SymTab = F->SymTab;
F->StructTab->PrevTab = StructTab;
StructTab = F->StructTab;
F->EnumTab->PrevTab = EnumTab;
EnumTab = F->EnumTab;
F->TagTab->PrevTab = TagTab;
TagTab = F->TagTab;
/* Create and assign a new label table */
LabelTab = NewSymTable (SYMTAB_SIZE_LABEL);
@ -326,9 +309,8 @@ void LeaveFunctionLevel (void)
}
/* Don't delete the tables */
SymTab = SymTab->PrevTab;
StructTab = StructTab->PrevTab;
EnumTab = EnumTab->PrevTab;
SymTab = SymTab->PrevTab;
TagTab = TagTab->PrevTab;
LabelTab = 0;
}
@ -347,15 +329,10 @@ void EnterBlockLevel (void)
S->PrevTab = SymTab;
SymTab = S;
/* Get a new struct table and make it current */
/* Get a new tag table and make it current */
S = NewSymTable (SYMTAB_SIZE_BLOCK);
S->PrevTab = StructTab;
StructTab = S;
/* Get a new enum table and make it current */
S = NewSymTable (SYMTAB_SIZE_BLOCK);
S->PrevTab = EnumTab;
EnumTab = S;
S->PrevTab = TagTab;
TagTab = S;
}
@ -370,9 +347,8 @@ void LeaveBlockLevel (void)
CheckSymTable (SymTab);
/* Don't delete the tables */
SymTab = SymTab->PrevTab;
StructTab = StructTab->PrevTab;
EnumTab = EnumTab->PrevTab;
SymTab = SymTab->PrevTab;
TagTab = TagTab->PrevTab;
}
@ -463,18 +439,18 @@ SymEntry* FindSym (const char* Name)
SymEntry* FindStructSym (const char* Name)
/* Find the symbol with the given name in the struct table */
SymEntry* FindLocalSym (const char* Name)
/* Find the symbol with the given name in the current symbol table only */
{
return FindSymInTree (StructTab, Name);
return FindSymInTable (SymTab, Name, HashStr (Name));
}
SymEntry* FindEnumSym (const char* Name)
/* Find the symbol with the given name in the enum table */
SymEntry* FindTagSym (const char* Name)
/* Find the symbol with the given name in the tag table */
{
return FindSymInTree (EnumTab, Name);
return FindSymInTree (TagTab, Name);
}
@ -552,11 +528,11 @@ SymEntry* AddStructSym (const char* Name, unsigned Size, SymTable* Tab)
/* Add a struct/union entry and return it */
{
/* Do we have an entry with this name already? */
SymEntry* Entry = FindSymInTable (StructTab, Name, HashStr (Name));
SymEntry* Entry = FindSymInTable (TagTab, Name, HashStr (Name));
if (Entry) {
/* We do have an entry. This may be a forward, so check it. */
if (Entry->Flags != SC_STRUCT) {
if ((Entry->Flags & SC_STRUCT) == 0) {
/* Existing symbol is not a struct */
Error (ERR_SYMBOL_KIND);
} else if (Size > 0 && Entry->V.S.Size > 0) {
@ -580,7 +556,7 @@ SymEntry* AddStructSym (const char* Name, unsigned Size, SymTable* Tab)
Entry->V.S.Size = Size;
/* Add it to the current table */
AddSymEntry (StructTab, Entry);
AddSymEntry (TagTab, Entry);
}
/* Return the entry */
@ -786,6 +762,14 @@ SymTable* GetSymTab (void)
int SymIsLocal (SymEntry* Sym)
/* Return true if the symbol is defined in the highest lexical level */
{
return (Sym->Owner == SymTab || Sym->Owner == TagTab);
}
static int EqualSymTables (SymTable* Tab1, SymTable* Tab2)
/* Compare two symbol tables. Return 1 if they are equal and 0 otherwise */
{
@ -825,6 +809,7 @@ int EqualTypes (const type* Type1, const type* Type2)
SymTable* Tab2;
FuncDesc* F1;
FuncDesc* F2;
int Ok;
/* Shortcut here: If the pointers are identical, the types are identical */
@ -841,17 +826,36 @@ int EqualTypes (const type* Type1, const type* Type2)
/* Compare the function descriptors */
F1 = DecodePtr (Type1+1);
F2 = DecodePtr (Type2+1);
if ((F1->Flags & ~FD_IMPLICIT) != (F2->Flags & ~FD_IMPLICIT)) {
/* Flags differ */
return 0;
/* If one of the functions is implicitly declared, both
* functions are considered equal. If one of the functions is
* old style, and the other is empty, the functions are
* considered equal.
*/
if ((F1->Flags & FD_IMPLICIT) != 0 || (F2->Flags & FD_IMPLICIT) != 0) {
Ok = 1;
} else if ((F1->Flags & FD_OLDSTYLE) != 0 && (F2->Flags & FD_EMPTY) != 0) {
Ok = 1;
} else if ((F1->Flags & FD_EMPTY) != 0 && (F2->Flags & FD_OLDSTYLE) != 0) {
Ok = 1;
} else {
Ok = 0;
}
/* Compare the parameter lists */
if (EqualSymTables (F1->SymTab, F2->SymTab) == 0 ||
EqualSymTables (F1->StructTab, F2->StructTab) == 0 ||
EqualSymTables (F1->EnumTab, F2->EnumTab) == 0) {
/* One of the tables is not identical */
return 0;
if (!Ok) {
/* Check the remaining flags */
if ((F1->Flags & ~FD_IGNORE) != (F2->Flags & ~FD_IGNORE)) {
/* Flags differ */
return 0;
}
/* Compare the parameter lists */
if (EqualSymTables (F1->SymTab, F2->SymTab) == 0 ||
EqualSymTables (F1->TagTab, F2->TagTab) == 0) {
/* One of the tables is not identical */
return 0;
}
}
/* Skip the FuncDesc pointers to compare the return type */

11
src/cc65/symtab.h
View File

@ -117,11 +117,11 @@ void LeaveStructLevel (void);
SymEntry* FindSym (const char* Name);
/* Find the symbol with the given name */
SymEntry* FindStructSym (const char* Name);
/* Find the symbol with the given name in the struct table */
SymEntry* FindLocalSym (const char* Name);
/* Find the symbol with the given name in the current symbol table only */
SymEntry* FindEnumSym (const char* Name);
/* Find the symbol with the given name in the enum table */
SymEntry* FindTagSym (const char* Name);
/* Find the symbol with the given name in the tag table */
SymEntry* FindStructField (const type* TypeArray, const char* Name);
/* Find a struct field in the fields list */
@ -160,6 +160,9 @@ SymEntry* AddGlobalSym (const char* Name, type* Type, unsigned Flags);
SymTable* GetSymTab (void);
/* Return the current symbol table */
int SymIsLocal (SymEntry* Sym);
/* Return true if the symbol is defined in the highest lexical level */
int EqualTypes (const type* t1, const type* t2);
/* Recursively compare two types. Return 1 if the types match, return 0
* otherwise.