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auto_cast

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This commit is contained in:
gingerBill
2018-02-18 15:14:13 +00:00
parent 731dad480d
commit 4c339360e9
6 changed files with 101 additions and 41 deletions
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70
src/parser.cpp
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@@ -25,35 +25,36 @@ Token ast_node_token(AstNode *node) {
return ast_node_token(node->SelectorExpr.selector);
}
return node->SelectorExpr.token;
case AstNode_IndexExpr: return node->IndexExpr.open;
case AstNode_SliceExpr: return node->SliceExpr.open;
case AstNode_Ellipsis: return node->Ellipsis.token;
case AstNode_FieldValue: return node->FieldValue.eq;
case AstNode_DerefExpr: return node->DerefExpr.op;
case AstNode_TernaryExpr: return ast_node_token(node->TernaryExpr.cond);
case AstNode_TypeAssertion: return ast_node_token(node->TypeAssertion.expr);
case AstNode_TypeCast: return node->TypeCast.token;
case AstNode_IndexExpr: return node->IndexExpr.open;
case AstNode_SliceExpr: return node->SliceExpr.open;
case AstNode_Ellipsis: return node->Ellipsis.token;
case AstNode_FieldValue: return node->FieldValue.eq;
case AstNode_DerefExpr: return node->DerefExpr.op;
case AstNode_TernaryExpr: return ast_node_token(node->TernaryExpr.cond);
case AstNode_TypeAssertion: return ast_node_token(node->TypeAssertion.expr);
case AstNode_TypeCast: return node->TypeCast.token;
case AstNode_AutoCast: return node->AutoCast.token;
case AstNode_BadStmt: return node->BadStmt.begin;
case AstNode_EmptyStmt: return node->EmptyStmt.token;
case AstNode_ExprStmt: return ast_node_token(node->ExprStmt.expr);
case AstNode_TagStmt: return node->TagStmt.token;
case AstNode_AssignStmt: return node->AssignStmt.op;
case AstNode_IncDecStmt: return ast_node_token(node->IncDecStmt.expr);
case AstNode_BlockStmt: return node->BlockStmt.open;
case AstNode_IfStmt: return node->IfStmt.token;
case AstNode_WhenStmt: return node->WhenStmt.token;
case AstNode_ReturnStmt: return node->ReturnStmt.token;
case AstNode_ForStmt: return node->ForStmt.token;
case AstNode_RangeStmt: return node->RangeStmt.token;
case AstNode_CaseClause: return node->CaseClause.token;
case AstNode_SwitchStmt: return node->SwitchStmt.token;
case AstNode_TypeSwitchStmt: return node->TypeSwitchStmt.token;
case AstNode_DeferStmt: return node->DeferStmt.token;
case AstNode_BranchStmt: return node->BranchStmt.token;
case AstNode_UsingStmt: return node->UsingStmt.token;
case AstNode_UsingInStmt: return node->UsingInStmt.using_token;
case AstNode_PushContext: return node->PushContext.token;
case AstNode_BadStmt: return node->BadStmt.begin;
case AstNode_EmptyStmt: return node->EmptyStmt.token;
case AstNode_ExprStmt: return ast_node_token(node->ExprStmt.expr);
case AstNode_TagStmt: return node->TagStmt.token;
case AstNode_AssignStmt: return node->AssignStmt.op;
case AstNode_IncDecStmt: return ast_node_token(node->IncDecStmt.expr);
case AstNode_BlockStmt: return node->BlockStmt.open;
case AstNode_IfStmt: return node->IfStmt.token;
case AstNode_WhenStmt: return node->WhenStmt.token;
case AstNode_ReturnStmt: return node->ReturnStmt.token;
case AstNode_ForStmt: return node->ForStmt.token;
case AstNode_RangeStmt: return node->RangeStmt.token;
case AstNode_CaseClause: return node->CaseClause.token;
case AstNode_SwitchStmt: return node->SwitchStmt.token;
case AstNode_TypeSwitchStmt: return node->TypeSwitchStmt.token;
case AstNode_DeferStmt: return node->DeferStmt.token;
case AstNode_BranchStmt: return node->BranchStmt.token;
case AstNode_UsingStmt: return node->UsingStmt.token;
case AstNode_UsingInStmt: return node->UsingInStmt.using_token;
case AstNode_PushContext: return node->PushContext.token;
case AstNode_BadDecl: return node->BadDecl.begin;
case AstNode_Label: return node->Label.token;
@@ -633,6 +634,12 @@ AstNode *ast_type_cast(AstFile *f, Token token, AstNode *type, AstNode *expr) {
result->TypeCast.expr = expr;
return result;
}
AstNode *ast_auto_cast(AstFile *f, Token token, AstNode *expr) {
AstNode *result = make_ast_node(f, AstNode_AutoCast);
result->AutoCast.token = token;
result->AutoCast.expr = expr;
return result;
}
@@ -2195,6 +2202,13 @@ AstNode *parse_unary_expr(AstFile *f, bool lhs) {
AstNode *expr = parse_unary_expr(f, lhs);
return ast_type_cast(f, token, type, expr);
}
case Token_auto_cast: {
Token token = advance_token(f);
AstNode *expr = parse_unary_expr(f, lhs);
return ast_auto_cast(f, token, expr);
}
case Token_Add:
case Token_Sub:
case Token_Not: