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/**
* @file change_int_types.cpp
*
* @author Alex Henrie
* @license GPL v2+
*/
#include "change_int_types.h"
#include "chunk.h"
#include "uncrustify.h"
using namespace uncrustify;
static bool is_storage_keyword(const Chunk *pc)
{
return( strcmp(pc->Text(), "auto") == 0
|| strcmp(pc->Text(), "const") == 0
|| strcmp(pc->Text(), "extern") == 0
|| strcmp(pc->Text(), "mutable") == 0
|| strcmp(pc->Text(), "register") == 0
|| strcmp(pc->Text(), "static") == 0
|| strcmp(pc->Text(), "thread_local") == 0
|| strcmp(pc->Text(), "typedef") == 0
|| strcmp(pc->Text(), "volatile") == 0
|| strcmp(pc->Text(), "_Atomic") == 0
|| strcmp(pc->Text(), "_Thread_local") == 0);
}
static bool is_non_integer(const Chunk *pc)
{
return( strcmp(pc->Text(), "char") == 0
|| strcmp(pc->Text(), "double") == 0);
}
static bool find_non_storage_siblings(const Chunk *pc, Chunk * &prev, Chunk * &next)
{
prev = pc->GetPrevNcNnl();
next = pc->GetNextNcNnl();
// Find the last token that was not a storage keyword
while (is_storage_keyword(prev))
{
prev = prev->GetPrevNcNnl();
}
// Return false if the last token indicates that this is not an integer type
if (is_non_integer(prev))
{
return(false);
}
// Find the next token that is not a storage keyword
while (is_storage_keyword(next))
{
next = next->GetNextNcNnl();
}
// Return false if the next token indicates that this is not an integer type
if (is_non_integer(next))
{
return(false);
}
// Return true if this is indeed an integer type
return(true);
}
static void add_or_remove_int_keyword(Chunk *pc, Chunk *sibling, iarf_e action, E_Direction dir, Chunk * &int_keyword)
{
if (strcmp(sibling->Text(), "int") == 0)
{
if (action == IARF_REMOVE)
{
if (sibling == int_keyword)
{
int_keyword = Chunk::NullChunkPtr;
}
Chunk::Delete(sibling);
}
else if ( int_keyword->IsNotNullChunk()
&& int_keyword != sibling)
{
// We added an int keyword, but now we see that there already was one.
// Keep one or the other but not both.
if (options::mod_int_prefer_int_on_left())
{
Chunk::Delete(sibling);
}
else
{
Chunk::Delete(int_keyword);
int_keyword = sibling;
}
}
else
{
int_keyword = sibling;
}
}
else
{
if ( action == IARF_ADD
|| action == IARF_FORCE)
{
if (int_keyword->IsNotNullChunk())
{
// There was already an int keyword. Either keep it and don't add a
// new one or delete it to make way for the new one.
if (options::mod_int_prefer_int_on_left())
{
return;
}
else
{
Chunk::Delete(int_keyword);
}
}
if (dir == E_Direction::BACKWARD)
{
int_keyword = pc->CopyAndAddBefore(pc);
}
else
{
int_keyword = pc->CopyAndAddAfter(pc);
}
int_keyword->Str() = "int";
}
}
} // add_or_remove_int_keyword
void change_int_types()
{
LOG_FUNC_ENTRY();
Chunk *prev;
Chunk *next;
Chunk *int_keyword = Chunk::NullChunkPtr;
for (Chunk *pc = Chunk::GetHead(); pc->IsNotNullChunk(); pc = pc->GetNextNcNnl())
{
if (strcmp(pc->Text(), "short") == 0)
{
if (find_non_storage_siblings(pc, prev, next))
{
add_or_remove_int_keyword(pc, prev, options::mod_int_short(), E_Direction::BACKWARD, int_keyword);
add_or_remove_int_keyword(pc, next, options::mod_short_int(), E_Direction::FORWARD, int_keyword);
}
}
else if (strcmp(pc->Text(), "long") == 0)
{
if (find_non_storage_siblings(pc, prev, next))
{
add_or_remove_int_keyword(pc, prev, options::mod_int_long(), E_Direction::BACKWARD, int_keyword);
add_or_remove_int_keyword(pc, next, options::mod_long_int(), E_Direction::FORWARD, int_keyword);
}
}
else if (strcmp(pc->Text(), "signed") == 0)
{
if (find_non_storage_siblings(pc, prev, next))
{
add_or_remove_int_keyword(pc, prev, options::mod_int_signed(), E_Direction::BACKWARD, int_keyword);
add_or_remove_int_keyword(pc, next, options::mod_signed_int(), E_Direction::FORWARD, int_keyword);
}
}
else if (strcmp(pc->Text(), "unsigned") == 0)
{
if (find_non_storage_siblings(pc, prev, next))
{
add_or_remove_int_keyword(pc, prev, options::mod_int_unsigned(), E_Direction::BACKWARD, int_keyword);
add_or_remove_int_keyword(pc, next, options::mod_unsigned_int(), E_Direction::FORWARD, int_keyword);
}
}
else if ( strcmp(pc->Text(), "int") != 0
&& !is_storage_keyword(pc))
{
int_keyword = Chunk::NullChunkPtr; // We are no longer in a variable declaration
}
}
} // change_int_types
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