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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| #include "utils.h" | ||
|
|
||
| void assert(bool condition, const char *message) { | ||
| if (!condition) | ||
| throw std::runtime_error("Assertion failed: " + std::string(message)); | ||
| } | ||
|
|
||
| Variable::Type varTypeConvert(AbstractSyntaxTree *ast) { | ||
| if (ast->nodeType != AbstractSyntaxTree::Type::Node) | ||
| throw std::runtime_error("[Declaration::compile] Invalid type: " + ast->typeStr); | ||
| auto token = dynamic_cast<Node *>(ast)->token; | ||
| switch (token.type) { | ||
| case I32: | ||
| return Variable::Type::I32; | ||
| case I64: | ||
| return Variable::Type::I64; | ||
| default: | ||
| throw std::runtime_error("[Declaration::compile] Invalid type: " + token.value); | ||
| } | ||
| } | ||
|
|
||
| Variable::Type deduceType(Program &program, Segment &segment, AbstractSyntaxTree *ast) { | ||
| switch (ast->nodeType) { | ||
| case AbstractSyntaxTree::Type::Node: { | ||
| auto token = dynamic_cast<Node *>(ast)->token; | ||
| switch (token.type) { | ||
| case Number: { | ||
| try { | ||
| std::stoi(token.value); | ||
| return Variable::Type::I32; | ||
| } catch (std::out_of_range &) { | ||
| goto long64; | ||
| } | ||
| long64: | ||
| try { | ||
| std::stol(token.value); | ||
| return Variable::Type::I64; | ||
| } catch (std::exception &) { | ||
| throw std::runtime_error("Invalid number: " + token.value); | ||
| } | ||
| } | ||
| case Identifier: { | ||
| if (segment.find_local(token.value) != -1) | ||
| return segment.locals[token.value].type; | ||
| if (program.find_global(token.value) != -1) | ||
| return program.segments[0].locals[token.value].type; | ||
| throw std::runtime_error("Identifier not found: " + token.value); | ||
| } | ||
| default: | ||
| throw std::runtime_error("Invalid type: " + token.value); | ||
| } | ||
| } | ||
| case AbstractSyntaxTree::Type::UnaryExpression: { | ||
| auto unary = dynamic_cast<UnaryExpression *>(ast); | ||
| return deduceType(program, segment, unary->expression); | ||
| } | ||
| case AbstractSyntaxTree::Type::BinaryExpression: { | ||
| auto binary = dynamic_cast<BinaryExpression *>(ast); | ||
| auto left = deduceType(program, segment, binary->left); | ||
| auto right = deduceType(program, segment, binary->right); | ||
| if ((left == Variable::Type::I32 || left == Variable::Type::I64) && | ||
| (right == Variable::Type::I32 || right == Variable::Type::I64)) | ||
| return left == Variable::Type::I64 || right == Variable::Type::I64 ? Variable::Type::I64 | ||
| : Variable::Type::I32; | ||
| if (left != right) | ||
| throw std::runtime_error("Type mismatch"); | ||
| return left; | ||
| } | ||
| case AbstractSyntaxTree::Type::FunctionCall: { | ||
| // TODO: add support for multiple return types | ||
| auto call = dynamic_cast<FunctionCall *>(ast); | ||
| auto function = program.find_function(segment, call->identifier.token.value); | ||
| if (function == -1) | ||
| throw std::runtime_error("Function not found: " + call->identifier.token.value); | ||
| return Variable::Type::I32; | ||
| } | ||
| default: | ||
| throw std::runtime_error("Invalid type: " + ast->typeStr); | ||
| } | ||
| } | ||
|
|
||
| #define TYPE_CASE(INS) \ | ||
| case GenericInstruction::INS: { \ | ||
| switch (type) { \ | ||
| case Variable::Type::I32: \ | ||
| return {Instruction::InstructionType::INS##I32}; \ | ||
| case Variable::Type::I64: \ | ||
| return {Instruction::InstructionType::INS##I64}; \ | ||
| default: \ | ||
| throw std::runtime_error("[getInstructionWithType] Invalid type"); \ | ||
| } \ | ||
| } | ||
| Instruction getInstructionWithType(GenericInstruction instruction, Variable::Type type) { | ||
| switch (instruction) { | ||
| TYPE_CASE(Add) | ||
| TYPE_CASE(Sub) | ||
| TYPE_CASE(Mul) | ||
| TYPE_CASE(Div) | ||
| TYPE_CASE(Mod) | ||
| TYPE_CASE(Equal) | ||
| TYPE_CASE(Less) | ||
| TYPE_CASE(Greater) | ||
| TYPE_CASE(GreaterEqual) | ||
| TYPE_CASE(LessEqual) | ||
| TYPE_CASE(NotEqual) | ||
| } | ||
| } | ||
|
|
||
| Instruction emitLoad(Variable::Type type, const Token &token) { | ||
| switch (type) { | ||
| case Variable::Type::I32: | ||
| return Instruction{ | ||
| .type = Instruction::InstructionType::LoadI32, | ||
| .params = {.i32 = std::stoi(token.value)}, | ||
| }; | ||
| case Variable::Type::I64: | ||
| return Instruction{ | ||
| .type = Instruction::InstructionType::LoadI64, | ||
| .params = {.i64 = std::stol(token.value)}, | ||
| }; | ||
| default: | ||
| throw std::runtime_error("Invalid type: " + token.value); | ||
| } | ||
| } | ||
|
|
||
| void typeCast(std::vector<Instruction> &instructions, Variable::Type from, Variable::Type to) { | ||
| if (from == to) | ||
| return; | ||
| switch (from) { | ||
| case Variable::Type::I32: | ||
| switch (to) { | ||
| case Variable::Type::I64: | ||
| return instructions.push_back({.type = Instruction::InstructionType::ConvertI32toI64}); | ||
| default: | ||
| throw std::runtime_error("Invalid type cast"); | ||
| } | ||
| default: | ||
| throw std::runtime_error("Invalid type cast"); | ||
| } | ||
| } |