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compiler: blank identifier for loops. dont declare any variables

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This commit is contained in:
joe-conigliaro
2019-09-29 02:53:56 +10:00
committed by Alexander Medvednikov
parent 7952d591b9
commit ed3a4961d0
4 changed files with 35 additions and 38 deletions
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60
compiler/parser.v
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@ -3275,44 +3275,33 @@ fn (p mut Parser) for_st() {
pad := if is_arr { 6 } else { 4 }
var_typ := if is_str { 'byte' } else { typ.right(pad) }
// typ = strings.Replace(typ, "_ptr", "*", -1)
// Register temp var
val_var := Var {
name: val
typ: var_typ
ptr: typ.contains('*')
}
p.register_var(val_var)
mut i_var_type := 'int'
if is_arr {
i_var := Var {
name: i
typ: 'int'
// parent_fn: p.cur_fn
is_mut: true
is_changed: true
}
//p.genln(';\nfor ($i_type $i = 0; $i < $tmp .len; $i ++) {')
p.gen_for_header(i, tmp, var_typ, val)
p.register_var(i_var)
}
else if is_map {
i_var := Var {
name: i
typ: 'string'
is_mut: true
is_changed: true
}
p.register_var(i_var)
i_var_type = 'string'
p.gen_for_map_header(i, tmp, var_typ, val, typ)
}
else if is_str {
i_var := Var {
i_var_type = 'byte'
p.gen_for_str_header(i, tmp, var_typ, val)
}
// Register temp vars
if i != '_' {
p.register_var(Var {
name: i
typ: 'byte'
typ: i_var_type
is_mut: true
is_changed: true
}
p.register_var(i_var)
p.gen_for_str_header(i, tmp, var_typ, val)
})
}
if val != '_' {
p.register_var(Var {
name: val
typ: var_typ
ptr: typ.contains('*')
})
}
}
// `for val in vals`
@ -3357,13 +3346,14 @@ fn (p mut Parser) for_st() {
}
// println('for typ=$typ vartyp=$var_typ')
// Register temp var
val_var := Var {
name: val
typ: var_type
ptr: typ.contains('*')
is_changed: true
if val != '_' {
p.register_var(Var {
name: val
typ: var_type
ptr: typ.contains('*')
is_changed: true
})
}
p.register_var(val_var)
i := p.get_tmp()
if is_arr {
p.gen_for_header(i, tmp, var_type, val)
@ -3374,7 +3364,7 @@ fn (p mut Parser) for_st() {
else if is_range {
p.gen_for_range_header(i, range_end, tmp, var_type, val)
}
} else {
} else {
// `for a < b {`
p.gen('while (')
p.check_types(p.bool_expression(), 'bool')