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expression: set floats as f64 by default

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SleepyRoy
2020-03-19 14:24:49 +08:00
committed by GitHub
parent 969765435e
commit f798a0937a
10 changed files with 77 additions and 30 deletions
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12
vlib/compiler/expression.v
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@ -786,17 +786,13 @@ fn (p mut Parser) factor() string {
return p.expected_type
}
.number {
typ = 'int'
// Check if float (`1.0`, `1e+3`) but not if is hexa
if (p.lit.contains('.') || (p.lit.contains('e') || p.lit.contains('E'))) && !(p.lit[0] == `0` && (p.lit[1] == `x` || p.lit[1] == `X`)) {
typ = 'f32'
// typ = 'f64' // TODO
// Check if float (`1.0`, `1e+3`) but not if is hexa (e.g. 0xEE contains `E` but is not float)
if (p.lit.contains('.') || p.lit.contains('e') || p.lit.contains('E')) && !(p.lit[..2] in ['0x', '0X']) {
typ = 'f64'
}
else {
v_u64 := p.lit.u64()
if u64(u32(v_u64)) < v_u64 {
typ = 'u64'
}
typ = if u64(u32(v_u64)) < v_u64 { 'u64' } else { 'int' }
}
if p.expected_type != '' && !is_valid_int_const(p.lit, p.expected_type) {
p.error('constant `$p.lit` overflows `$p.expected_type`')