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cc65/src/ca65/asserts.c
cuz 4555fdcad1 Rewrote expression evaluation. More smaller changes.
git-svn-id: svn://svn.cc65.org/cc65/trunk@2638 b7a2c559-68d2-44c3-8de9-860c34a00d81
2003-11-11 13:57:30 +00:00

135 lines
4.9 KiB
C

/*****************************************************************************/
/* */
/* asserts.c */
/* */
/* Linker assertions for the ca65 crossassembler */
/* */
/* */
/* */
/* (C) 2003 Ullrich von Bassewitz */
/* Römerstraße 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* 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. */
/* */
/*****************************************************************************/
/* common */
#include "coll.h"
#include "xmalloc.h"
/* ca65 */
#include "asserts.h"
#include "expr.h"
#include "objfile.h"
#include "scanner.h"
/*****************************************************************************/
/* Data */
/*****************************************************************************/
/* An assertion entry */
typedef struct Assertion Assertion;
struct Assertion {
ExprNode* Expr; /* Expression to evaluate */
unsigned Action; /* Action to take */
unsigned Msg; /* Message to print (if any) */
FilePos Pos; /* File position of assertion */
};
/* Collection with all assertions for a module */
static Collection Assertions = STATIC_COLLECTION_INITIALIZER;
/*****************************************************************************/
/* Code */
/*****************************************************************************/
static Assertion* NewAssertion (ExprNode* Expr, unsigned Action, unsigned Msg)
/* Create a new Assertion struct and return it */
{
/* Allocate memory */
Assertion* A = xmalloc (sizeof (Assertion));
/* Initialize the fields */
A->Expr = Expr;
A->Action = Action;
A->Msg = Msg;
A->Pos = CurPos;
/* Return the new struct */
return A;
}
void AddAssertion (ExprNode* Expr, unsigned Action, unsigned Msg)
/* Add an assertion to the assertion table */
{
/* Add an assertion object to the table */
CollAppend (&Assertions, NewAssertion (Expr, Action, Msg));
}
void WriteAssertions (void)
/* Write the assertion table to the object file */
{
unsigned I;
/* Get the number of strings in the string pool */
unsigned Count = CollCount (&Assertions);
/* Tell the object file module that we're about to start the assertions */
ObjStartAssertions ();
/* Write the string count to the list */
ObjWriteVar (Count);
/* Write the assertions */
for (I = 0; I < Count; ++I) {
/* Get the next assertion */
Assertion* A = CollAtUnchecked (&Assertions, I);
/* Write it to the file */
WriteExpr (A->Expr);
ObjWriteVar (A->Action);
ObjWriteVar (A->Msg);
ObjWritePos (&A->Pos);
}
/* Done writing the assertions */
ObjEndAssertions ();
}