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static cast: support changing size and signedness

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Support SystemVerilog Static Cast
- size
- signedness
- (type is not supposted yet)

Fix #535
This commit is contained in:
Kazuki Sakamoto 2020-06-14 15:15:59 -07:00
parent 338ecbe02f
commit 185bbbe681
6 changed files with 48 additions and 0 deletions
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2
frontends/verilog/verilog_lexer.l
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@ -517,6 +517,8 @@ import[ \t\r\n]+\"(DPI|DPI-C)\"[ \t\r\n]+function[ \t\r\n]+ {
"<<<" { return OP_SSHL; }
">>>" { return OP_SSHR; }
"'" { return OP_CAST; }
"::" { return TOK_PACKAGESEP; }
"++" { return TOK_INCREMENT; }
"--" { return TOK_DECREMENT; }