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parser: minor optimization in parse_multi_expr()

pull/5409/head
yuyi 2020-06-18 07:15:17 +08:00 committed by GitHub
parent 3f01e2b796
commit b806fff90a
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1 changed files with 2 additions and 2 deletions
vlib/v/parser

4
vlib/v/parser/parser.v
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@ -753,10 +753,10 @@ fn (mut p Parser) parse_multi_expr(is_top_level bool) ast.Stmt {
if p.tok.kind in [.assign, .decl_assign] || p.tok.kind.is_assign() { if p.tok.kind in [.assign, .decl_assign] || p.tok.kind.is_assign() {
return p.partial_assign_stmt(left) return p.partial_assign_stmt(left)
} }
else if is_top_level && left.len > 0 && else if is_top_level && tok.kind !in [.key_if, .key_match] &&
left0 !is ast.CallExpr && left0 !is ast.PostfixExpr && left0 !is ast.CallExpr && left0 !is ast.PostfixExpr &&
!(left0 is ast.InfixExpr && (left0 as ast.InfixExpr).op == .left_shift) && !(left0 is ast.InfixExpr && (left0 as ast.InfixExpr).op == .left_shift) &&
left0 !is ast.ComptimeCall && tok.kind !in [.key_if, .key_match] { left0 !is ast.ComptimeCall {
p.error_with_pos('expression evaluated but not used', left0.position()) p.error_with_pos('expression evaluated but not used', left0.position())
} }
if left.len == 1 { if left.len == 1 {