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parser: more typing checks

pull/2671/head
Alexander Medvednikov 2019-11-06 20:47:03 +03:00
parent 75510e2ea1
commit 0f0bef2d33
2 changed files with 10 additions and 0 deletions
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7
vlib/compiler/parser.v
View File

@ -1467,6 +1467,10 @@ fn (p mut Parser) bool_expression() string {
} }
p.check_space(p.tok) p.check_space(p.tok)
p.check_types(p.bterm(), typ) p.check_types(p.bterm(), typ)
if typ != 'bool' {
p.error('logical operators `&&` and `||` require booleans')
}
} }
if typ == '' { if typ == '' {
println('curline:') println('curline:')
@ -2467,6 +2471,9 @@ fn (p mut Parser) expression() string {
p.gen(',') p.gen(',')
} }
} }
if is_str && tok_op != .plus {
p.error('strings only support `+` operator')
}
p.check_types(p.term(), typ) p.check_types(p.term(), typ)
if (is_str || is_ustr) && tok_op == .plus && !p.is_js { if (is_str || is_ustr) && tok_op == .plus && !p.is_js {
p.gen(')') p.gen(')')

3
vlib/math/math_test.v
View File

@ -53,4 +53,7 @@ fn test_mod() {
assert 4 % 2 == 0 assert 4 % 2 == 0
x := 2 x := 2
assert u64(5) % x == 1 assert u64(5) % x == 1
mut a := 10
a %= 2
assert a == 0
} }