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bignum module wrapper for kokke/tiny-bignum-c

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This commit is contained in:
Delyan Angelov
2019-11-07 21:04:18 +02:00
committed by Alexander Medvednikov
parent 7a29d959ce
commit a44ba0b8a2
10 changed files with 1170 additions and 33 deletions
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48
vlib/compiler/expression.v
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@ -448,34 +448,29 @@ fn (p mut Parser) expression() string {
// Make sure operators are used with correct types
if !p.pref.translated && !is_str && !is_ustr && !is_num {
T := p.table.find_type(typ)
if tok_op == .plus {
if T.has_method('+') {
p.cgen.set_placeholder(ph, typ + '_plus(')
p.gen(')')
}
else {
p.error('operator + not defined on `$typ`')
}
}
else if tok_op == .minus {
if T.has_method('-') {
p.cgen.set_placeholder(ph, '${typ}_minus(')
p.gen(')')
}
else {
p.error('operator - not defined on `$typ`')
}
}
if tok_op == .plus { p.handle_operator('+', typ, 'op_plus', ph, T) }
else if tok_op == .minus { p.handle_operator('-', typ, 'op_minus', ph, T) }
}
}
return typ
}
fn (p mut Parser) handle_operator(op string, typ string, cpostfix string, ph int, T &Type) {
if T.has_method( op ) {
p.cgen.set_placeholder(ph, '${typ}_${cpostfix}(')
p.gen(')')
}
else {
p.error('operator $op not defined on `$typ`')
}
}
fn (p mut Parser) term() string {
line_nr := p.scanner.line_nr
//if p.fileis('fn_test') {
//println('\nterm() $line_nr')
//}
ph := p.cgen.add_placeholder()
typ := p.unary()
//if p.fileis('fn_test') {
//println('2: $line_nr')
@ -491,11 +486,28 @@ fn (p mut Parser) term() string {
// is_mul := tok == .mod
p.next()
p.gen(tok.str())// + ' /*op2*/ ')
oph := p.cgen.add_placeholder()
p.fgen(' ' + tok.str() + ' ')
if (is_div || is_mod) && p.tok == .number && p.lit == '0' {
p.error('division or modulo by zero')
}
expr_type := p.unary()
if !is_primitive_type(expr_type) && expr_type == typ {
p.check_types(expr_type, typ)
T := p.table.find_type(typ)
// NB: oph is a char index just after the OP
before_oph := p.cgen.cur_line[..oph-1]
after_oph := p.cgen.cur_line[oph..]
p.cgen.cur_line = before_oph + ',' + after_oph
match tok {
.mul { p.handle_operator('*', typ, 'op_mul', ph, T) }
.div { p.handle_operator('/', typ, 'op_div', ph, T) }
.mod { p.handle_operator('%', typ, 'op_mod', ph, T) }
}
continue
}
if is_mod {
if !(is_integer_type(expr_type) && is_integer_type(typ)) {
p.error('operator `mod` requires integer types')