90 lines
4.3 KiB
C++
90 lines
4.3 KiB
C++
#include <vector>
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#include <string>
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#include <iomanip>
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#include <iostream>
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using namespace std;
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#include "include/utils.h"
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#include "include/errors.h"
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#include "include/colors.h"
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#include "include/tokenize.h"
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string UserError::get_message(void) const {
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switch (this->type) {
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// Generic
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case ErrorType::NotImplemented: return "Not implemented";
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// Lexing
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case ErrorType::UnknownToken: return "Unknown token";
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case ErrorType::IntegerTooLarge: return "Integer constant is too large";
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// Parsing
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case ErrorType::EmptyInput: return "Input must not be empty";
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case ErrorType::InvalidSyntax: return "Invalid syntax";
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case ErrorType::ExceptedLParen: return "Expected '(";
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case ErrorType::ExpectedRParen: return "Expected ')'";
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case ErrorType::ExpectedLCurlyBracket: return "Expected '{'";
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case ErrorType::ExpectedRCurlyBracket: return "Expected '}'";
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case ErrorType::ExpectedSemicolon: return "Expected ';'";
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case ErrorType::DependentDeclaration: return "A dependant statement may not be a declaration";
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case ErrorType::NameOmitted: return "Omitting parameter name in a function definition";
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// Flow control
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case ErrorType::BreakNotWithinLoop: return "Break statement not within loop";
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case ErrorType::ContinueNotWithinLoop: return "Continue statement not within loop";
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case ErrorType::ControlReachesEndOfNonVoidFn: return "Control reaches end of non-void function";
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case ErrorType::UnexpectedReturn: return "Return not within a function";
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// Analysis
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case ErrorType::UnknownType: return "Unknown type '"+get<string>(this->data)+"'";
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case ErrorType::TypeNotCastable: return "Can't find an explicit cast to "+get<string>(this->data)+"'";
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case ErrorType::TypesNotComparable: return "Types not comparable";
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case ErrorType::ExpectedIntegralType: return "Expression must have integral type";
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case ErrorType::ExpectedArithmeticType: return "Expression must have arithmetic type";
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case ErrorType::NestedFunction: return "Function definition is not allowed here";
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case ErrorType::FunctionRedefinition: return "Redefinition of '"+get<string>(this->data)+"'";
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case ErrorType::IncompatibleRedefinition: return "Redefinition of '"+get<string>(this->data)+"' as different kind of symbol";
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case ErrorType::IncompatibleDefinition: return "Declaration of '"+get<string>(this->data)+"' is incompatible with previous prototype";
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case ErrorType::UnexpectedArgumentCount: return "Expected "+to_string(get<int>(this->data))+" arguments to function call";
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case ErrorType::IncompatibleReturnValue: return "Return value type does not match the function type";
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case ErrorType::IncompleteType: return "Incomplete type is not allowed";
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// Runtime
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case ErrorType::UnknownIdentifier: return "Unknown identifier '"+get<string>(this->data)+"'";
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case ErrorType::AlreadyDeclaredIdentifier: return "Already declared identifier '"+get<string>(this->data)+"'";
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case ErrorType::UninitializedIdentifier: return "Accessing uninitialized identifier '"+get<string>(this->data)+"'";
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case ErrorType::DivisionByZero: return "Division by 0";
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case ErrorType::ModuloByZero: return "Modulo by 0";
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default: return "Unknown error type";
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}
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}
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void print_error_position(vector<string> history, CodePosition pos) {
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if (pos.column == -1 || pos.line == -1)
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return;
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cout << endl << BOLD
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<< setw(4) << setfill(' ')
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<< pos.line+1 << " " RESET
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<< history[pos.line] << endl;
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for (int i=0; i < pos.column + 5; i++)
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cout << " ";
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cout << BOLD RED "^--" RESET << endl;
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}
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void print_error_stack_trace(vector<string> history, const RuntimeError& error) {
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cout << "\n" BOLD "Traceback" RESET " (most recent call last)" << endl;
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for (StackTraceEntry e : error.trace) {
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cout << BOLD << setw(8) << setfill(' ')
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<< to_string(get<1>(e).line+1) + ":" + to_string(get<1>(e).column+1)
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<< RESET BLUE
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<< setw(16) << setfill(' ')
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<< get<0>(e) << RESET << " \t"
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<< trim(history[get<1>(e).line]) << endl;
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}
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cout << BOLD RED "Runtime Error: " RESET << error.get_message() << endl;
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} |