feat(arc): waittill undefined param (#149)
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@ -302,6 +302,9 @@ auto compiler::emit_stmt_waittill(stmt_waittill const& stm) -> void
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for (auto const& entry : stm.args->list)
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{
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if (entry->is<expr_undefined>())
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emit_opcode(opcode::OP_SafeDecTop);
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else
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emit_opcode(opcode::OP_SafeSetWaittillVariableFieldCached, fmt::format("{}", variable_access(entry->as<expr_identifier>())));
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}
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@ -2003,13 +2006,16 @@ auto compiler::process_stmt_waittill(stmt_waittill const& stm) -> void
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{
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for (auto const& entry : stm.args->list)
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{
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if (!entry->is<expr_identifier>())
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if (!entry->is<expr_identifier>() && !entry->is<expr_undefined>())
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{
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throw comp_error(entry->loc(), "illegal waittill param, must be a local variable");
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throw comp_error(entry->loc(), "illegal waittill param, must be a local variable or undefined");
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}
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if (entry->is<expr_identifier>())
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{
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variable_register(entry->as<expr_identifier>());
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}
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}
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}
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auto compiler::process_stmt_if(stmt_if const& stm) -> void
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@ -192,6 +192,7 @@ auto decompiler::decompile_instruction(instruction const& inst, bool last) -> vo
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break;
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}
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case opcode::OP_GetUndefined:
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case opcode::OP_SafeDecTop:
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{
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stack_.push(expr_undefined::make(loc));
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break;
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@ -1118,7 +1119,6 @@ auto decompiler::decompile_instruction(instruction const& inst, bool last) -> vo
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case opcode::OP_CheckClearParams:
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case opcode::OP_CastFieldObject:
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case opcode::OP_CastBool:
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case opcode::OP_SafeDecTop:
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break;
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case opcode::OP_CreateLocalVariable:
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case opcode::OP_RemoveLocalVariables:
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