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parser: fix builtin as name not allowed

pull/2678/head
lorenzo pirro 2019-11-07 04:00:48 +01:00 committed by Alexander Medvednikov
parent c8de2c0bd4
commit d57c0cfde0
1 changed files with 14 additions and 0 deletions
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14
vlib/compiler/parser.v
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@ -79,6 +79,12 @@ pub:
const (
MaxModuleDepth = 4
Reserved_Types = {
'i8' : true, 'i16' : true, 'int' : true, 'i64' : true, 'i128' : true,
'byte' : true, 'u16' : true, 'u32' : true, 'u64' : true, 'u128' : true,
'f32' : true, 'f64' : true,
'rune' : true, 'byteptr' : true, 'voidptr' : true
}
)
// new parser from string. unique id specified in `id`.
@ -690,6 +696,12 @@ fn (p mut Parser) check_string() string {
return s
}
fn (p mut Parser) check_not_reserved () {
if p.lit in Reserved_Types {
p.error('`$p.lit` can\'t be used as name')
}
}
fn (p &Parser) strtok() string {
if p.tok == .name {
return p.lit
@ -1090,6 +1102,7 @@ fn (p mut Parser) statement(add_semi bool) string {
}
// `a := 777`
else if p.peek() == .decl_assign || p.peek() == .comma {
p.check_not_reserved()
//p.log('var decl')
p.var_decl()
}
@ -3149,6 +3162,7 @@ fn (p mut Parser) if_st(is_expr bool, elif_depth int) string {
p.next()
// `if a := opt() { }` syntax
if p.tok == .name && p.peek() == .decl_assign {
p.check_not_reserved()
option_tmp := p.get_tmp()
var_name := p.lit
p.next()