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parser, cgen: temporary prefix ++ for translated code
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18dfaf6164
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10051e005a
@ -1358,6 +1358,7 @@ fn (t Tree) postfix_expr(node ast.PostfixExpr) &Node {
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obj.add_terse('expr', t.expr(node.expr))
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obj.add('auto_locked', t.string_node(node.auto_locked))
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obj.add('pos', t.pos(node.pos))
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obj.add('is_c2v_prefix', t.bool_node(node.is_c2v_prefix))
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return obj
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}
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@ -864,6 +864,7 @@ pub struct PostfixExpr {
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pub:
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op token.Kind
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pos token.Pos
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is_c2v_prefix bool // for `--x` (`x--$`), only for translated code until c2v can handle it
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pub mut:
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expr Expr
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auto_locked string
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@ -2387,6 +2387,9 @@ pub fn (mut f Fmt) postfix_expr(node ast.PostfixExpr) {
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} else {
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f.write('$node.op')
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}
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if node.is_c2v_prefix {
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f.write('$')
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}
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}
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pub fn (mut f Fmt) prefix_expr(node ast.PrefixExpr) {
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@ -3040,6 +3040,9 @@ fn (mut g Gen) expr(node_ ast.Expr) {
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g.writeln('sync__RwMutex_lock(&$node.auto_locked->mtx);')
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}
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g.inside_map_postfix = true
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if node.is_c2v_prefix {
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g.write(node.op.str())
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}
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if node.expr.is_auto_deref_var() {
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g.write('(*')
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g.expr(node.expr)
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@ -3048,7 +3051,9 @@ fn (mut g Gen) expr(node_ ast.Expr) {
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g.expr(node.expr)
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}
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g.inside_map_postfix = false
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if !node.is_c2v_prefix {
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g.write(node.op.str())
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}
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if node.auto_locked != '' {
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g.writeln(';')
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g.write('sync__RwMutex_unlock(&$node.auto_locked->mtx)')
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@ -467,10 +467,15 @@ pub fn (mut p Parser) expr_with_left(left ast.Expr, precedence int, is_stmt_iden
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if mut node is ast.IndexExpr {
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node.recursive_mapset_is_setter(true)
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}
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is_c2v_prefix := p.peek_tok.kind == .dollar
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node = ast.PostfixExpr{
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op: p.tok.kind
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expr: node
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pos: p.tok.pos()
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is_c2v_prefix: is_c2v_prefix
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}
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if is_c2v_prefix {
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p.next()
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}
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p.next()
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// return node // TODO bring back, only allow ++/-- in exprs in translated code
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