#include "rust-path.h"
#include "rust-macro.h"
#include "rust-operators.h"
-#include <memory>
+#include "rust-system.h"
namespace Rust {
namespace AST {
struct AnonConst
{
NodeId id;
- std::unique_ptr<Expr> value;
+ std::unique_ptr<Expr> expr;
AnonConst () {}
AnonConst (const AnonConst &other)
{
id = other.id;
- value = other.value == nullptr
- ? nullptr
- : std::unique_ptr<Expr> (other.value->clone_expr ());
+ if (other.expr)
+ expr = other.expr->clone_expr ();
}
AnonConst operator= (const AnonConst &other)
{
id = other.id;
- value = other.value == nullptr
- ? nullptr
- : std::unique_ptr<Expr> (other.value->clone_expr ());
+ if (other.expr)
+ expr = other.expr->clone_expr ();
return *this;
}
};
Type type;
struct Reg reg;
- struct RegClass regClass;
+ struct RegClass reg_class;
Identifier name;
location_t locus;
In (const struct In &other)
{
reg = other.reg;
- expr = other.expr == nullptr
- ? nullptr
- : std::unique_ptr<Expr> (other.expr->clone_expr ());
+ if (other.expr)
+ expr = other.expr->clone_expr ();
}
In operator= (const struct In &other)
{
reg = other.reg;
- expr = other.expr == nullptr
- ? nullptr
- : std::unique_ptr<Expr> (other.expr->clone_expr ());
+ if (other.expr)
+ expr = other.expr->clone_expr ();
return *this;
}
{
reg = other.reg;
late = other.late;
- expr = other.expr == nullptr
- ? nullptr
- : std::unique_ptr<Expr> (other.expr->clone_expr ());
+ if (other.expr)
+ expr = other.expr->clone_expr ();
}
Out operator= (const struct Out &other)
{
reg = other.reg;
late = other.late;
- expr = other.expr == nullptr
- ? nullptr
- : std::unique_ptr<Expr> (other.expr->clone_expr ());
+ if (other.expr)
+ expr = other.expr->clone_expr ();
return *this;
}
};
{
reg = other.reg;
late = other.late;
- expr = other.expr == nullptr
- ? nullptr
- : std::unique_ptr<Expr> (other.expr->clone_expr ());
+ if (other.expr)
+ expr = other.expr->clone_expr ();
}
InOut operator= (const struct InOut &other)
{
reg = other.reg;
late = other.late;
- expr = other.expr == nullptr
- ? nullptr
- : std::unique_ptr<Expr> (other.expr->clone_expr ());
+ if (other.expr)
+ expr = other.expr->clone_expr ();
+
return *this;
}
};
{
reg = other.reg;
late = other.late;
- in_expr = other.in_expr == nullptr
- ? nullptr
- : std::unique_ptr<Expr> (other.in_expr->clone_expr ());
- out_expr = other.out_expr == nullptr
- ? nullptr
- : std::unique_ptr<Expr> (other.out_expr->clone_expr ());
+ if (other.in_expr)
+ in_expr = other.in_expr->clone_expr ();
+
+ if (other.out_expr)
+ out_expr = other.out_expr->clone_expr ();
}
SplitInOut operator= (const struct SplitInOut &other)
{
reg = other.reg;
late = other.late;
- in_expr = other.in_expr == nullptr
- ? nullptr
- : std::unique_ptr<Expr> (other.in_expr->clone_expr ());
- out_expr = other.out_expr == nullptr
- ? nullptr
- : std::unique_ptr<Expr> (other.out_expr->clone_expr ());
+
+ if (other.in_expr)
+ in_expr = other.in_expr->clone_expr ();
+
+ if (other.out_expr)
+ out_expr = other.out_expr->clone_expr ();
return *this;
}
struct Sym
{
- std::unique_ptr<Expr> sym;
+ std::unique_ptr<Expr> expr;
Sym () {}
Sym (const struct Sym &other)
{
- sym = std::unique_ptr<Expr> (other.sym->clone_expr ());
+ if (other.expr)
+ expr = std::unique_ptr<Expr> (other.expr->clone_expr ());
}
Sym operator= (const struct Sym &other)
{
- sym = std::unique_ptr<Expr> (other.sym->clone_expr ());
+ if (other.expr)
+ expr = std::unique_ptr<Expr> (other.expr->clone_expr ());
return *this;
}
};
- RegisterType registerType;
+ RegisterType register_type;
struct In in;
struct Out out;
- struct InOut inOut;
- struct SplitInOut splitInOut;
+ struct InOut in_out;
+ struct SplitInOut split_in_out;
struct Const cnst;
struct Sym sym;
InlineAsmOperand () {}
InlineAsmOperand (const InlineAsmOperand &other)
- : in (other.in), out (other.out), inOut (other.inOut),
- splitInOut (other.splitInOut), cnst (other.cnst), sym (other.sym)
+ : in (other.in), out (other.out), in_out (other.in_out),
+ split_in_out (other.split_in_out), cnst (other.cnst), sym (other.sym)
{}
location_t locus;
int
parse_clobber_abi (Parser<MacroInvocLexer> &parser, TokenId last_token_id,
- InlineAsmContext &inlineAsmCtx)
+ InlineAsmContext &inline_asm_ctx)
{
// clobber_abi := "clobber_abi(" <abi> *("," <abi>) [","] ")"
// PARSE EVERYTHING COMMITTEDLY IN THIS FUNCTION, WE CONFIRMED VIA clobber_abi
// identifier keyword
- auto &inlineAsm = inlineAsmCtx.inlineAsm;
+ auto &inline_asm = inline_asm_ctx.inline_asm;
auto token = parser.peek_current_token ();
if (!parser.skip_token (LEFT_PAREN))
{
// why.
if (token->get_id () == last_token_id)
{
- rust_error_at (parser.peek_current_token ()->get_locus (),
- "expected `(`, found end of macro arguments");
+ rust_error_at (token->get_locus (),
+ "expected %<(%>, found end of macro arguments");
return -1;
}
else
{
- rust_error_at (
- parser.peek_current_token ()->get_locus (),
- "expected `(`, found `%s`",
- parser.peek_current_token ()->get_token_description ());
+ rust_error_at (token->get_locus (), "expected %<(%>, found %qs",
+ token->get_token_description ());
}
return -1;
}
// https://github.com/rust-lang/rust/blob/c00957a3e269219413041a4e3565f33b1f9d0779/compiler/rustc_builtin_macros/src/asm.rs#L381
rust_error_at (
parser.peek_current_token ()->get_locus (),
- "at least one abi must be provided as an argument to `clobber_abi`");
+ "at least one abi must be provided as an argument to %<clobber_abi%>");
return -1;
}
// TODO: We encountered something that is not string literal, which
// should be illegal, please emit the correct error
// https://github.com/rust-lang/rust/blob/b92758a9aef1cef7b79e2b72c3d8ba113e547f89/compiler/rustc_builtin_macros/src/asm.rs#L387
+ rust_unreachable ();
}
if (parser.skip_token (RIGHT_PAREN))
{
// TODO: If the skip of comma is unsuccessful, which should be
// illegal, pleaes emit the correct error.
+ rust_unreachable ();
return -1;
}
for (auto abi : new_abis)
{
- inlineAsm.clobber_abi.push_back (abi);
+ inline_asm.clobber_abi.push_back (abi);
}
return 0;
tl::optional<AST::InlineAsmRegOrRegClass>
parse_reg (Parser<MacroInvocLexer> &parser, TokenId last_token_id,
- InlineAsmContext &inlineAsmCtx)
+ InlineAsmContext &inline_asm_ctx)
{
using RegType = AST::InlineAsmRegOrRegClass::Type;
if (!parser.skip_token (LEFT_PAREN))
{
// TODO: we expect a left parenthesis here, please return the correct
// error.
+ rust_unreachable ();
return tl::nullopt;
}
// InlineAsmRegOrRegClass of reg or reg class
auto token = parser.peek_current_token ();
auto tok_id = token->get_id ();
- AST::InlineAsmRegOrRegClass regClass;
+ AST::InlineAsmRegOrRegClass reg_class;
if (parser.skip_token (IDENTIFIER))
{
// construct a InlineAsmRegOrRegClass
- regClass.type = RegType::RegClass;
- regClass.regClass.Symbol = token->as_string ();
+ reg_class.type = RegType::RegClass;
+ reg_class.reg_class.Symbol = token->as_string ();
}
else if (tok_id == STRING_LITERAL)
{
// construct a InlineAsmRegOrRegClass
// parse_format_string
- regClass.type = RegType::Reg;
- inlineAsmCtx.is_explicit = true;
- regClass.regClass.Symbol = token->as_string ();
+ reg_class.type = RegType::Reg;
+ inline_asm_ctx.is_explicit = true;
+ reg_class.reg_class.Symbol = token->as_string ();
}
else
{
// {
// span: p.token.span,
// }));
+ rust_unreachable ();
}
if (!parser.skip_token (RIGHT_PAREN))
{
// TODO: we expect a left parenthesis here, please return the correct
// error.
+ rust_unreachable ();
return tl::nullopt;
}
- return regClass;
+ return reg_class;
}
int
parse_operand (Parser<MacroInvocLexer> &parser, TokenId last_token_id,
- InlineAsmContext &inlineAsmCtx)
+ InlineAsmContext &inline_asm_ctx)
{
return 0;
}
// From rustc
tl::optional<AST::InlineAsmOperand>
parse_reg_operand (Parser<MacroInvocLexer> &parser, TokenId last_token_id,
- InlineAsmContext &inlineAsmCtx)
+ InlineAsmContext &inline_asm_ctx)
{
// let name = if p.token.is_ident() && p.look_ahead(1, |t| *t == token::Eq) {
// let (ident, _) = p.token.ident().unwrap();
// None
// };
- using RegisterType = AST::InlineAsmOperand::RegisterType;
AST::InlineAsmOperand reg_operand;
auto token = parser.peek_current_token ();
auto iden_token = parser.peek_current_token ();
- auto &inlineAsm = inlineAsmCtx.inlineAsm;
+ auto &inline_asm = inline_asm_ctx.inline_asm;
if (check_identifier (parser, ""))
{
auto equal_token = parser.peek_current_token ();
token = parser.peek_current_token ();
bool is_explicit_reg = false;
- bool is_global_asm = inlineAsm.is_global_asm;
+ bool is_global_asm = inline_asm.is_global_asm;
if (!is_global_asm && check_identifier (parser, "in"))
{
+ rust_unreachable ();
return tl::nullopt;
}
else if (!is_global_asm && check_identifier (parser, "out"))
{
+ rust_unreachable ();
return tl::nullopt;
}
else if (!is_global_asm && check_identifier (parser, "lateout"))
{
+ rust_unreachable ();
return tl::nullopt;
}
else if (!is_global_asm && check_identifier (parser, "inout"))
{
+ rust_unreachable ();
return tl::nullopt;
}
else if (!is_global_asm && check_identifier (parser, "inlateout"))
{
+ rust_unreachable ();
return tl::nullopt;
}
else if (parser.peek_current_token ()->get_id () == CONST)
{
+ // TODO: Please handle const
rust_unreachable ();
- // todo: Please handle const
return tl::nullopt;
}
else if (false && check_identifier (parser, "sym"))
{
- // todo: Please handle sym
+ // TODO: Please handle sym
+ rust_unreachable ();
return tl::nullopt;
}
else if (false && check_identifier (parser, "label"))
{
- // todo: Please handle label
+ // TODO: Please handle label
+ rust_unreachable ();
return tl::nullopt;
}
else
{
+ // TODO: It is weird that we can't seem to match any identifier,
+ // something must be wrong. consult compiler code in asm.rs or rust online
+ // compiler.
+ rust_unreachable ();
return tl::nullopt;
}
return reg_operand;
}
void
-check_and_set (Parser<MacroInvocLexer> &parser, InlineAsmContext &inlineAsmCtx,
- AST::InlineAsmOption option)
+check_and_set (Parser<MacroInvocLexer> &parser,
+ InlineAsmContext &inline_asm_ctx, AST::InlineAsmOption option)
{
- auto &inlineAsm = inlineAsmCtx.inlineAsm;
- if (inlineAsm.options.count (option) != 0)
+ auto &inline_asm = inline_asm_ctx.inline_asm;
+ if (inline_asm.options.count (option) != 0)
{
// TODO: report an error of duplication
rust_error_at (parser.peek_current_token ()->get_locus (),
- "the `%s` option was already provided",
+ "the %qs option was already provided",
InlineAsmOptionMap[option].c_str ());
return;
}
else
{
- inlineAsm.options.insert (option);
+ inline_asm.options.insert (option);
}
}
int
parse_options (Parser<MacroInvocLexer> &parser, TokenId last_token_id,
- InlineAsmContext &inlineAsmCtx)
+ InlineAsmContext &inline_asm_ctx)
{
- bool is_global_asm = inlineAsmCtx.inlineAsm.is_global_asm;
+ bool is_global_asm = inline_asm_ctx.inline_asm.is_global_asm;
// Parse everything commitedly
if (!parser.skip_token (LEFT_PAREN))
{
{
if (!is_global_asm && check_identifier (parser, "pure"))
{
- check_and_set (parser, inlineAsmCtx, AST::InlineAsmOption::PURE);
+ check_and_set (parser, inline_asm_ctx, AST::InlineAsmOption::PURE);
}
else if (!is_global_asm && check_identifier (parser, "nomem"))
{
- check_and_set (parser, inlineAsmCtx, AST::InlineAsmOption::NOMEM);
+ check_and_set (parser, inline_asm_ctx, AST::InlineAsmOption::NOMEM);
}
else if (!is_global_asm && check_identifier (parser, "readonly"))
{
- check_and_set (parser, inlineAsmCtx, AST::InlineAsmOption::READONLY);
+ check_and_set (parser, inline_asm_ctx,
+ AST::InlineAsmOption::READONLY);
}
else if (!is_global_asm && check_identifier (parser, "preserves_flags"))
{
- check_and_set (parser, inlineAsmCtx,
+ check_and_set (parser, inline_asm_ctx,
AST::InlineAsmOption::PRESERVES_FLAGS);
}
else if (!is_global_asm && check_identifier (parser, "noreturn"))
{
- check_and_set (parser, inlineAsmCtx, AST::InlineAsmOption::NORETURN);
+ check_and_set (parser, inline_asm_ctx,
+ AST::InlineAsmOption::NORETURN);
}
else if (!is_global_asm && check_identifier (parser, "nostack"))
{
- check_and_set (parser, inlineAsmCtx, AST::InlineAsmOption::NOSTACK);
+ check_and_set (parser, inline_asm_ctx, AST::InlineAsmOption::NOSTACK);
}
else if (!is_global_asm && check_identifier (parser, "may_unwind"))
{
- check_and_set (parser, inlineAsmCtx,
+ check_and_set (parser, inline_asm_ctx,
AST::InlineAsmOption::MAY_UNWIND);
}
else if (check_identifier (parser, "att_syntax"))
{
- check_and_set (parser, inlineAsmCtx,
+ check_and_set (parser, inline_asm_ctx,
AST::InlineAsmOption::ATT_SYNTAX);
}
else if (check_identifier (parser, "raw"))
{
- check_and_set (parser, inlineAsmCtx, AST::InlineAsmOption::RAW);
+ check_and_set (parser, inline_asm_ctx, AST::InlineAsmOption::RAW);
}
else
{
}
else
{
- std::cout << "Sum wrong here, check it out" << std::endl;
+ rust_unreachable ();
token = parser.peek_current_token ();
return -1;
}
}
tl::optional<std::string>
parse_format_string (Parser<MacroInvocLexer> &parser, TokenId last_token_id,
- InlineAsmContext &inlineAsmCtx)
+ InlineAsmContext &inline_asm_ctx)
{
auto token = parser.peek_current_token ();
int
parse_asm_arg (Parser<MacroInvocLexer> &parser, TokenId last_token_id,
- InlineAsmContext &inlineAsmCtx)
+ InlineAsmContext &inline_asm_ctx)
{
auto token = parser.peek_current_token ();
tl::optional<std::string> fm_string;
// We accept a comma token here.
if (token->get_id () != COMMA
- && inlineAsmCtx.consumed_comma_without_formatted_string)
+ && inline_asm_ctx.consumed_comma_without_formatted_string)
{
// if it is not a comma, but we consumed it previously, this is fine
// but we have to set it to false tho.
- inlineAsmCtx.consumed_comma_without_formatted_string = false;
+ inline_asm_ctx.consumed_comma_without_formatted_string = false;
}
else if (token->get_id () == COMMA
- && !inlineAsmCtx.consumed_comma_without_formatted_string)
+ && !inline_asm_ctx.consumed_comma_without_formatted_string)
{
- inlineAsmCtx.consumed_comma_without_formatted_string = false;
+ inline_asm_ctx.consumed_comma_without_formatted_string = false;
parser.skip_token ();
}
else
// TODO: Parse clobber abi, eat the identifier named "clobber_abi" if true
if (check_identifier (parser, "clobber_abi"))
{
- parse_clobber_abi (parser, last_token_id, inlineAsmCtx);
+ parse_clobber_abi (parser, last_token_id, inline_asm_ctx);
continue;
}
// TODO: Parse options
if (check_identifier (parser, "options"))
{
- parse_options (parser, last_token_id, inlineAsmCtx);
+ parse_options (parser, last_token_id, inline_asm_ctx);
continue;
}
// Ok after we have check that neither clobber_abi nor options works, the
// only other logical choice is reg_operand
// std::cout << "reg_operand" << std::endl;
- fm_string = parse_format_string (parser, last_token_id, inlineAsmCtx);
+ fm_string = parse_format_string (parser, last_token_id, inline_asm_ctx);
}
return 0;
}
Parser<MacroInvocLexer> parser (lex);
auto last_token_id = macro_end_token (invoc.get_delim_tok_tree (), parser);
- AST::InlineAsm inlineAsm (invoc_locus, is_global_asm);
- auto inlineAsmCtx = InlineAsmContext (inlineAsm);
+ AST::InlineAsm inline_asm (invoc_locus, is_global_asm);
+ auto inline_asm_ctx = InlineAsmContext (inline_asm);
// Parse the first ever formatted string, success or not, will skip 1 token
- auto fm_string = parse_format_string (parser, last_token_id, inlineAsmCtx);
+ auto fm_string = parse_format_string (parser, last_token_id, inline_asm_ctx);
if (fm_string == tl::nullopt)
{
}
// Ok after the comma is good, we better be parsing correctly everything
// in here, which is formatted string in ABNF
- inlineAsmCtx.consumed_comma_without_formatted_string = false;
+ inline_asm_ctx.consumed_comma_without_formatted_string = false;
- fm_string = parse_format_string (parser, last_token_id, inlineAsmCtx);
+ fm_string = parse_format_string (parser, last_token_id, inline_asm_ctx);
if (fm_string == tl::nullopt)
{
- inlineAsmCtx.consumed_comma_without_formatted_string = true;
+ inline_asm_ctx.consumed_comma_without_formatted_string = true;
break;
}
}
// operands stream, also handles the optional ","
- parse_asm_arg (parser, last_token_id, inlineAsmCtx);
+ parse_asm_arg (parser, last_token_id, inline_asm_ctx);
- AST::SingleASTNode single
- = AST::SingleASTNode (inlineAsmCtx.inlineAsm.clone_expr_without_block ());
+ AST::SingleASTNode single = AST::SingleASTNode (
+ inline_asm_ctx.inline_asm.clone_expr_without_block ());
std::vector<AST::SingleASTNode> single_vec = {single};
AST::Fragment fragment_ast
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