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toml: fix implicit allocation overwrite of existing table (#12793)

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Larpon
2021-12-11 14:21:46 +01:00
committed by GitHub
parent 9bf777c1ee
commit ba06eba39c
2 changed files with 35 additions and 8 deletions
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22
vlib/toml/parser/parser.v
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@ -888,7 +888,7 @@ pub fn (mut p Parser) array_of_tables_contents() ?[]ast.Value {
// double_array_of_tables parses next tokens into an array of tables of arrays of `ast.Value`s...
pub fn (mut p Parser) double_array_of_tables(mut table map[string]ast.Value) ? {
util.printdbg(@MOD + '.' + @STRUCT + '.' + @FN, 'parsing array of tables of arrays "$p.tok.kind" "$p.tok.lit"')
util.printdbg(@MOD + '.' + @STRUCT + '.' + @FN, 'parsing nested array of tables "$p.tok.kind" "$p.tok.lit"')
dotted_key := p.dotted_key() ?
p.ignore_while(parser.space_formatting)
@ -918,16 +918,24 @@ pub fn (mut p Parser) double_array_of_tables(mut table map[string]ast.Value) ? {
unsafe {
// NOTE this is starting to get EVEN uglier. TOML is not *at all* simple at this point...
if first != p.last_aot {
util.printdbg(@MOD + '.' + @STRUCT + '.' + @FN, '$first != $p.last_aot')
// Implicit allocation
if p.last_aot.len == 0 {
util.printdbg(@MOD + '.' + @STRUCT + '.' + @FN, 'implicit allocation of array for dotted key `$dotted_key`.')
p.last_aot = first
// We register this implicit allocation as *explicit* to be able to catch
// special cases like:
// https://github.com/BurntSushi/toml-test/blob/576db852/tests/invalid/table/array-implicit.toml
p.explicit_declared << first
mut nm := &p.root_map
if first.str() in table.keys() {
util.printdbg(@MOD + '.' + @STRUCT + '.' + @FN, 'adding to existing table entry at `$first`.')
nm = &(table[first.str()] as map[string]ast.Value)
} else {
util.printdbg(@MOD + '.' + @STRUCT + '.' + @FN, 'implicit allocation of map for `$first` in dotted key `$dotted_key`.')
new := map[string]ast.Value{}
nm = &new
// We register this implicit allocation as *explicit* to be able to catch
// special cases like:
// https://github.com/BurntSushi/toml-test/blob/576db852/tests/invalid/table/array-implicit.toml
p.explicit_declared << first
}
mut nm := map[string]ast.Value{}
nm[last.str()] = []ast.Value{}
table[first.str()] = ast.Value(nm)