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cgen: fix high order map assignment (#8198)

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yuyi 2021-01-19 20:31:24 +08:00 committed by GitHub
parent ca70d815b6
commit 15cc1cd884
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2 changed files with 15 additions and 2 deletions
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11
vlib/v/gen/cgen.v
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@ -73,6 +73,7 @@ mut:
inside_ternary int // ?: comma separated statements on a single line
inside_map_postfix bool // inside map++/-- postfix expr
inside_map_infix bool // inside map<</+=/-= infix expr
inside_map_index bool
// inside_if_expr bool
ternary_names map[string]string
ternary_level_names map[string][]string
@ -4145,7 +4146,13 @@ fn (mut g Gen) index_expr(node ast.IndexExpr) {
if !left_is_ptr || node.left_type.has_flag(.shared_f) {
g.write('&')
}
g.expr(node.left)
if node.left is ast.IndexExpr {
g.inside_map_index = true
g.expr(node.left)
g.inside_map_index = false
} else {
g.expr(node.left)
}
if node.left_type.has_flag(.shared_f) {
if left_is_ptr {
g.write('->val')
@ -4165,7 +4172,7 @@ fn (mut g Gen) index_expr(node ast.IndexExpr) {
zero := g.type_default(info.value_type)
g.write('$zero })))')
}
} else if (g.inside_map_postfix || g.inside_map_infix) ||
} else if g.inside_map_postfix || g.inside_map_infix || g.inside_map_index ||
(g.is_assign_lhs && !g.is_array_set && get_and_set_types)
{
zero := g.type_default(info.value_type)

6
vlib/v/tests/map_high_order_assign_test.v Normal file
View File

@ -0,0 +1,6 @@
fn test_high_order_map_assign() {
mut m := map[string]map[string]int
m['hello']['hi'] = 1
println(m)
assert '$m' == "{'hello': {'hi': 1}}"
}