Deukhoofd/PorygonLang
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Implements assignment binding

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This commit is contained in:
Deukhoofd
2019-05-28 17:49:03 +02:00
parent dbd7dfdd73
commit 5d1c3ac9ba
20 changed files with 443 additions and 152 deletions
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34
src/Binder/Binder.cpp
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@@ -1,9 +1,11 @@
#include "Binder.hpp"
BoundScriptStatement *Binder::Bind(Script* script, ParsedScriptStatement *s) {
BoundScriptStatement *Binder::Bind(Script* script, ParsedScriptStatement *s, BoundScope* scriptScope) {
auto binder = Binder();
binder.ScriptData = script;
binder._scriptData = script;
binder._scope = scriptScope;
auto statements = s->GetStatements();
vector<BoundStatement*> boundStatements (statements.size());
for (int i = 0; i < statements.size(); i++){
@@ -12,11 +14,18 @@ BoundScriptStatement *Binder::Bind(Script* script, ParsedScriptStatement *s) {
return new BoundScriptStatement(boundStatements);
}
Binder::~Binder() {
delete _scope;
}
BoundStatement* Binder::BindStatement(ParsedStatement* statement){
switch (statement -> GetKind()) {
case ParsedStatementKind ::Script: throw; // This shouldn't happen.
case ParsedStatementKind ::Block: return this -> BindBlockStatement(statement);
case ParsedStatementKind ::Expression: return this -> BindExpressionStatement(statement);
case ParsedStatementKind::Assignment: return this -> BindAssignmentStatement(statement);
case ParsedStatementKind::Bad: return new BoundBadStatement();
}
}
@@ -34,6 +43,20 @@ BoundStatement *Binder::BindExpressionStatement(ParsedStatement *statement) {
return new BoundExpressionStatement(this -> BindExpression(exp));
}
BoundStatement* Binder::BindAssignmentStatement(ParsedStatement *statement){
auto s = (ParsedAssignmentStatement*) statement;
auto boundExpression = this->BindExpression(s->GetExpression());
auto assignment = this->_scope->AssignVariable(s->GetIdentifier().GetHash(), boundExpression->GetType());
if (assignment.GetResult() == VariableAssignmentResult::Ok){
auto key = assignment.GetKey();
return new BoundAssignmentStatement(key, boundExpression);
}
else{
this -> _scriptData -> Diagnostics -> LogError(DiagnosticCode::CantAssignVariable, statement->GetStartPosition(), statement->GetLength());
return new BoundBadStatement();
}
}
BoundExpression* Binder::BindExpression(ParsedExpression* expression){
switch (expression -> GetKind()){
case ParsedExpressionKind ::LiteralInteger:
@@ -149,7 +172,7 @@ BoundExpression* Binder::BindBinaryOperator(BinaryExpression* expression){
expression->GetStartPosition(), expression->GetLength());
break;
}
this -> ScriptData -> Diagnostics->LogError(DiagnosticCode::NoBinaryOperationFound, expression->GetStartPosition(), expression->GetLength());
this -> _scriptData -> Diagnostics->LogError(DiagnosticCode::NoBinaryOperationFound, expression->GetStartPosition(), expression->GetLength());
return new BoundBadExpression(expression->GetStartPosition(), expression->GetLength());
}
@@ -179,7 +202,8 @@ BoundExpression* Binder::BindUnaryOperator(UnaryExpression* expression){
default:
break;
}
this -> ScriptData -> Diagnostics->LogError(DiagnosticCode::NoUnaryOperationFound, expression->GetStartPosition(), expression->GetLength());
this -> _scriptData -> Diagnostics->LogError(DiagnosticCode::NoUnaryOperationFound, expression->GetStartPosition(), expression->GetLength());
return new BoundBadExpression(expression->GetStartPosition(), expression->GetLength());
}
}