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453 lines (396 loc) · 10.7 KB
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/**
* @file detect.cpp
* Scans the parsed file and tries to determine options.
*
* @author Ben Gardner
* @license GPL v2+
*/
#include "detect.h"
#include "prototypes.h"
using namespace uncrustify;
//! Detect spacing options
static void detect_space_options();
class sp_votes
{
protected:
size_t m_add = 0;
size_t m_remove = 0;
size_t m_force = 0;
Option<iarf_e> &m_option;
public:
sp_votes(Option<iarf_e> &opt)
: m_option(opt)
{}
//! Figure out the result of the vote and maybe update *m_av
~sp_votes();
void vote(Chunk const *first, Chunk const *second);
};
void sp_votes::vote(Chunk const *first, Chunk const *second)
{
if ( first->IsNullChunk()
|| first->IsNewline()
|| second->IsNullChunk()
|| second->IsNewline())
{
return;
}
int col_dif = second->GetColumn() - first->GetColumnEnd();
if (col_dif == 0)
{
m_remove++;
}
else if (col_dif == 1)
{
m_force++;
}
else
{
m_add++;
}
}
//! Figure out the result of the vote and maybe update *m_av
sp_votes::~sp_votes()
{
// no change if no items were added
if ( m_remove == 0
&& m_add == 0
&& m_force == 0)
{
return;
}
if (m_remove == 0)
{
m_option = (m_force > m_add) ? IARF_FORCE : IARF_ADD;
}
else if ( m_force == 0
&& m_add == 0)
{
m_option = IARF_REMOVE;
}
else
{
// nothing conclusive. do not alter.
}
}
// generates "vote_sp_xxx" variable name from uncrustify option name "options::xxx()"
#define SP_VOTE_VAR(x) sp_votes vote_ ## x(options::x)
static void detect_space_options()
{
SP_VOTE_VAR(sp_arith);
SP_VOTE_VAR(sp_before_assign);
SP_VOTE_VAR(sp_after_assign);
SP_VOTE_VAR(sp_enum_before_assign);
SP_VOTE_VAR(sp_enum_after_assign);
SP_VOTE_VAR(sp_bool);
SP_VOTE_VAR(sp_compare);
SP_VOTE_VAR(sp_inside_paren);
SP_VOTE_VAR(sp_paren_paren);
SP_VOTE_VAR(sp_paren_brace);
SP_VOTE_VAR(sp_before_ptr_star);
SP_VOTE_VAR(sp_before_unnamed_ptr_star);
SP_VOTE_VAR(sp_between_ptr_star);
SP_VOTE_VAR(sp_between_ptr_ref);
SP_VOTE_VAR(sp_after_ptr_star);
SP_VOTE_VAR(sp_after_byref);
SP_VOTE_VAR(sp_before_byref);
SP_VOTE_VAR(sp_before_unnamed_byref);
SP_VOTE_VAR(sp_before_ref_qualifier);
SP_VOTE_VAR(sp_after_ref_qualifier);
SP_VOTE_VAR(sp_after_type);
SP_VOTE_VAR(sp_template_angle);
SP_VOTE_VAR(sp_before_angle);
SP_VOTE_VAR(sp_inside_angle);
SP_VOTE_VAR(sp_after_angle);
SP_VOTE_VAR(sp_angle_paren);
SP_VOTE_VAR(sp_angle_word);
SP_VOTE_VAR(sp_before_square);
SP_VOTE_VAR(sp_before_squares);
SP_VOTE_VAR(sp_inside_square);
SP_VOTE_VAR(sp_before_sparen);
SP_VOTE_VAR(sp_inside_sparen);
SP_VOTE_VAR(sp_after_sparen);
SP_VOTE_VAR(sp_sparen_brace);
SP_VOTE_VAR(sp_special_semi);
SP_VOTE_VAR(sp_before_semi);
SP_VOTE_VAR(sp_before_semi_for);
SP_VOTE_VAR(sp_before_semi_for_empty);
SP_VOTE_VAR(sp_after_semi_for_empty);
SP_VOTE_VAR(sp_after_comma);
SP_VOTE_VAR(sp_before_comma);
SP_VOTE_VAR(sp_after_class_colon);
SP_VOTE_VAR(sp_before_class_colon);
SP_VOTE_VAR(sp_inside_braces);
SP_VOTE_VAR(sp_inside_braces_empty);
SP_VOTE_VAR(sp_else_brace);
SP_VOTE_VAR(sp_brace_else);
SP_VOTE_VAR(sp_catch_brace);
SP_VOTE_VAR(sp_brace_catch);
SP_VOTE_VAR(sp_finally_brace);
SP_VOTE_VAR(sp_brace_finally);
SP_VOTE_VAR(sp_try_brace);
SP_VOTE_VAR(sp_getset_brace);
Chunk const *prev = Chunk::GetHead();
Chunk *pc = prev->GetNext();
Chunk *next;
while (pc->IsNotNullChunk())
{
next = pc->GetNext();
if (next->IsNullChunk())
{
break;
}
if ( pc->Is(E_Token::CT_ARITH)
|| pc->Is(E_Token::CT_SHIFT))
{
vote_sp_arith.vote(pc, next);
vote_sp_arith.vote(prev, pc);
}
if (pc->Is(E_Token::CT_ASSIGN))
{
if (!pc->TestFlags(PCF_IN_ENUM))
{
vote_sp_before_assign.vote(prev, pc);
vote_sp_after_assign.vote(pc, next);
}
else
{
vote_sp_enum_before_assign.vote(prev, pc);
vote_sp_enum_after_assign.vote(pc, next);
}
}
if (pc->Is(E_Token::CT_SQUARE_OPEN))
{
vote_sp_before_square.vote(prev, pc);
vote_sp_inside_square.vote(pc, next);
}
if (pc->Is(E_Token::CT_SQUARE_CLOSE))
{
vote_sp_inside_square.vote(prev, pc);
}
if (pc->Is(E_Token::CT_TSQUARE))
{
vote_sp_before_squares.vote(prev, pc);
}
if (pc->Is(E_Token::CT_BOOL))
{
vote_sp_bool.vote(prev, pc);
vote_sp_bool.vote(pc, next);
}
if (pc->Is(E_Token::CT_COMPARE))
{
vote_sp_compare.vote(prev, pc);
vote_sp_compare.vote(pc, next);
}
if (pc->Is(E_Token::CT_PAREN_CLOSE))
{
vote_sp_inside_paren.vote(prev, pc);
}
if (pc->Is(E_Token::CT_PAREN_OPEN))
{
vote_sp_inside_paren.vote(pc, next);
}
if ( ( pc->IsParenOpen()
&& next->IsParenOpen())
|| ( pc->IsParenClose()
&& next->IsParenClose()))
{
vote_sp_paren_paren.vote(pc, next);
}
if ( pc->IsParenClose()
&& next->Is(E_Token::CT_BRACE_OPEN))
{
vote_sp_paren_brace.vote(pc, next);
}
if (pc->Is(E_Token::CT_PTR_TYPE))
{
if (prev->Is(E_Token::CT_PTR_TYPE))
{
vote_sp_between_ptr_star.vote(prev, pc);
}
else if (next->IsNot(E_Token::CT_WORD))
{
vote_sp_before_unnamed_ptr_star.vote(prev, pc);
}
else
{
vote_sp_before_ptr_star.vote(prev, pc);
}
if (CharTable::IsKw1(next->GetText()[0]))
{
vote_sp_after_ptr_star.vote(pc, next);
}
}
if (pc->Is(E_Token::CT_BYREF))
{
if (next->IsNot(E_Token::CT_WORD))
{
vote_sp_before_unnamed_byref.vote(prev, pc);
}
if (prev->Is(E_Token::CT_PTR_TYPE))
{
vote_sp_between_ptr_ref.vote(prev, pc);
}
else
{
vote_sp_before_byref.vote(prev, pc);
}
vote_sp_after_byref.vote(pc, next);
}
if (pc->Is(E_Token::CT_REF_QUALIFIER))
{
vote_sp_before_ref_qualifier.vote(prev, pc);
vote_sp_after_ref_qualifier.vote(pc, next);
}
if ( pc->IsNot(E_Token::CT_PTR_TYPE)
&& ( prev->Is(E_Token::CT_QUALIFIER)
|| prev->Is(E_Token::CT_TYPE)))
{
vote_sp_after_type.vote(prev, pc);
}
if (pc->Is(E_Token::CT_ANGLE_OPEN))
{
vote_sp_inside_angle.vote(pc, next);
if (prev->Is(E_Token::CT_TEMPLATE))
{
vote_sp_template_angle.vote(prev, pc);
}
else
{
vote_sp_before_angle.vote(prev, pc);
}
}
if (pc->Is(E_Token::CT_ANGLE_CLOSE))
{
vote_sp_inside_angle.vote(prev, pc);
if (next->IsParenOpen())
{
vote_sp_angle_paren.vote(prev, pc);
}
else if ( next->Is(E_Token::CT_WORD)
|| CharTable::IsKw1(next->GetText()[0]))
{
vote_sp_angle_word.vote(prev, pc);
}
else
{
vote_sp_after_angle.vote(pc, next);
}
}
if (pc->Is(E_Token::CT_SPAREN_OPEN))
{
vote_sp_before_sparen.vote(prev, pc);
vote_sp_inside_sparen.vote(pc, next);
}
if (pc->Is(E_Token::CT_SPAREN_CLOSE))
{
vote_sp_inside_sparen.vote(prev, pc);
if (next->Is(E_Token::CT_BRACE_OPEN))
{
vote_sp_sparen_brace.vote(pc, next);
}
else
{
vote_sp_after_sparen.vote(pc, next);
}
}
if (pc->Is(E_Token::CT_SEMICOLON))
{
if (pc->GetParentType() == E_Token::CT_FOR)
{
if (prev->Is(E_Token::CT_SPAREN_OPEN))
{
// empty, ie for (;;)
// ^ is prev
// ^ is pc
vote_sp_before_semi_for_empty.vote(prev, pc);
}
else if (next->Is(E_Token::CT_SPAREN_CLOSE))
{
// empty, ie for (;;)
// ^ is pc
// ^ is next
vote_sp_after_semi_for_empty.vote(pc, next);
}
else if (prev->IsNot(E_Token::CT_SEMICOLON))
{
// empty, ie for (; i < 8;)
// ^ is pc
// or
// ^ is prev
vote_sp_before_semi_for.vote(prev, pc);
}
}
else if (prev->Is(E_Token::CT_VBRACE_OPEN))
{
vote_sp_special_semi.vote(prev->GetPrev(), pc);
}
else
{
vote_sp_before_semi.vote(prev, pc);
}
}
if (pc->Is(E_Token::CT_COMMA))
{
vote_sp_before_comma.vote(prev, pc);
vote_sp_after_comma.vote(pc, next);
}
if (pc->Is(E_Token::CT_CLASS_COLON))
{
vote_sp_before_class_colon.vote(prev, pc);
vote_sp_after_class_colon.vote(pc, next);
}
if (pc->Is(E_Token::CT_BRACE_OPEN))
{
if (prev->Is(E_Token::CT_ELSE))
{
vote_sp_else_brace.vote(prev, pc);
}
else if (prev->Is(E_Token::CT_CATCH))
{
vote_sp_catch_brace.vote(prev, pc);
}
else if (prev->Is(E_Token::CT_FINALLY))
{
vote_sp_catch_brace.vote(prev, pc);
}
else if (prev->Is(E_Token::CT_TRY))
{
vote_sp_catch_brace.vote(prev, pc);
}
else if (prev->Is(E_Token::CT_GETSET))
{
vote_sp_catch_brace.vote(prev, pc);
}
if (next->Is(E_Token::CT_BRACE_CLOSE))
{
vote_sp_inside_braces_empty.vote(pc, next);
}
else
{
vote_sp_inside_braces.vote(pc, next);
}
}
if (pc->Is(E_Token::CT_BRACE_CLOSE))
{
vote_sp_inside_braces.vote(prev, pc);
if (next->Is(E_Token::CT_ELSE))
{
vote_sp_brace_else.vote(pc, next);
}
else if (next->Is(E_Token::CT_CATCH))
{
vote_sp_brace_catch.vote(pc, next);
}
else if (next->Is(E_Token::CT_FINALLY))
{
vote_sp_brace_finally.vote(pc, next);
}
}
prev = pc;
pc = next;
}
} // detect_space_options
void detect_options()
{
detect_space_options();
}