diff options
Diffstat (limited to 'src/parser.cpp')
| -rw-r--r-- | src/parser.cpp | 233 |
1 files changed, 222 insertions, 11 deletions
diff --git a/src/parser.cpp b/src/parser.cpp index 74cf191629..df1fe65310 100644 --- a/src/parser.cpp +++ b/src/parser.cpp @@ -2842,20 +2842,231 @@ void normalize_parent_ptrs(AstNode *node) { ast_visit_node_children(node, normalize_parent_ptrs_visit, nullptr); } -static AstNode *clone_node(AstNode *old_node) { - AstNode *new_node = allocate_nonzero<AstNode>(1); - memcpy(new_node, old_node, sizeof(AstNode)); - return new_node; +static void clone_subtree_list(ZigList<AstNode *> *dest, ZigList<AstNode *> *src, uint32_t *next_node_index) { + memset(dest, 0, sizeof(ZigList<AstNode *>)); + dest->resize(src->length); + for (int i = 0; i < src->length; i += 1) { + dest->at(i) = ast_clone_subtree(src->at(i), next_node_index); + } } -static void ast_clone_subtree_visit(AstNode **node, void *context) { - *node = clone_node(*node); - (*node)->parent_field = node; - ast_visit_node_children(*node, ast_clone_subtree_visit, nullptr); +static void clone_subtree_list_ptr(ZigList<AstNode *> **dest_ptr, ZigList<AstNode *> *src, + uint32_t *next_node_index) +{ + if (src) { + ZigList<AstNode *> *dest = allocate<ZigList<AstNode *>>(1); + *dest_ptr = dest; + clone_subtree_list(dest, src, next_node_index); + } +} + +static void clone_subtree_field(AstNode **dest, AstNode *src, uint32_t *next_node_index) { + *dest = ast_clone_subtree(src, next_node_index); + (*dest)->parent_field = dest; +} + +static void clone_subtree_tld(TopLevelDecl *dest, TopLevelDecl *src, uint32_t *next_node_index) { + clone_subtree_list_ptr(&dest->directives, src->directives, next_node_index); } -AstNode *ast_clone_subtree(AstNode *old_node) { - AstNode *new_node = clone_node(old_node); - ast_visit_node_children(new_node, ast_clone_subtree_visit, nullptr); +AstNode *ast_clone_subtree(AstNode *old_node, uint32_t *next_node_index) { + AstNode *new_node = allocate_nonzero<AstNode>(1); + memcpy(new_node, old_node, sizeof(AstNode)); + new_node->create_index = *next_node_index; + *next_node_index += 1; + + switch (new_node->type) { + case NodeTypeRoot: + clone_subtree_list(&new_node->data.root.top_level_decls, &old_node->data.root.top_level_decls, + next_node_index); + break; + case NodeTypeFnProto: + clone_subtree_tld(&new_node->data.fn_proto.top_level_decl, &old_node->data.fn_proto.top_level_decl, + next_node_index); + clone_subtree_field(&new_node->data.fn_proto.return_type, old_node->data.fn_proto.return_type, + next_node_index); + clone_subtree_list(&new_node->data.fn_proto.generic_params, + &old_node->data.fn_proto.generic_params, next_node_index); + clone_subtree_list(&new_node->data.fn_proto.params, &old_node->data.fn_proto.params, + next_node_index); + + break; + case NodeTypeFnDef: + clone_subtree_field(&new_node->data.fn_def.fn_proto, old_node->data.fn_def.fn_proto, next_node_index); + new_node->data.fn_def.fn_proto->data.fn_proto.fn_def_node = new_node; + clone_subtree_field(&new_node->data.fn_def.body, old_node->data.fn_def.body, next_node_index); + break; + case NodeTypeFnDecl: + clone_subtree_field(&new_node->data.fn_decl.fn_proto, old_node->data.fn_decl.fn_proto, + next_node_index); + break; + case NodeTypeParamDecl: + clone_subtree_field(&new_node->data.param_decl.type, old_node->data.param_decl.type, next_node_index); + break; + case NodeTypeBlock: + clone_subtree_list(&new_node->data.block.statements, &old_node->data.block.statements, + next_node_index); + break; + case NodeTypeDirective: + clone_subtree_field(&new_node->data.directive.expr, old_node->data.directive.expr, next_node_index); + break; + case NodeTypeReturnExpr: + clone_subtree_field(&new_node->data.return_expr.expr, old_node->data.return_expr.expr, next_node_index); + break; + case NodeTypeDefer: + clone_subtree_field(&new_node->data.defer.expr, old_node->data.defer.expr, next_node_index); + break; + case NodeTypeVariableDeclaration: + clone_subtree_list_ptr(&new_node->data.variable_declaration.top_level_decl.directives, + old_node->data.variable_declaration.top_level_decl.directives, next_node_index); + clone_subtree_field(&new_node->data.variable_declaration.type, old_node->data.variable_declaration.type, next_node_index); + clone_subtree_field(&new_node->data.variable_declaration.expr, old_node->data.variable_declaration.expr, next_node_index); + break; + case NodeTypeTypeDecl: + clone_subtree_list_ptr(&new_node->data.type_decl.top_level_decl.directives, + old_node->data.type_decl.top_level_decl.directives, next_node_index); + clone_subtree_field(&new_node->data.type_decl.child_type, old_node->data.type_decl.child_type, next_node_index); + break; + case NodeTypeErrorValueDecl: + // none + break; + case NodeTypeBinOpExpr: + clone_subtree_field(&new_node->data.bin_op_expr.op1, old_node->data.bin_op_expr.op1, next_node_index); + clone_subtree_field(&new_node->data.bin_op_expr.op2, old_node->data.bin_op_expr.op2, next_node_index); + break; + case NodeTypeUnwrapErrorExpr: + clone_subtree_field(&new_node->data.unwrap_err_expr.op1, old_node->data.unwrap_err_expr.op1, next_node_index); + clone_subtree_field(&new_node->data.unwrap_err_expr.symbol, old_node->data.unwrap_err_expr.symbol, next_node_index); + clone_subtree_field(&new_node->data.unwrap_err_expr.op2, old_node->data.unwrap_err_expr.op2, next_node_index); + break; + case NodeTypeNumberLiteral: + // none + break; + case NodeTypeStringLiteral: + // none + break; + case NodeTypeCharLiteral: + // none + break; + case NodeTypeSymbol: + // none + break; + case NodeTypePrefixOpExpr: + clone_subtree_field(&new_node->data.prefix_op_expr.primary_expr, old_node->data.prefix_op_expr.primary_expr, next_node_index); + break; + case NodeTypeFnCallExpr: + clone_subtree_field(&new_node->data.fn_call_expr.fn_ref_expr, old_node->data.fn_call_expr.fn_ref_expr, next_node_index); + clone_subtree_list(&new_node->data.fn_call_expr.params, &old_node->data.fn_call_expr.params, next_node_index); + break; + case NodeTypeArrayAccessExpr: + clone_subtree_field(&new_node->data.array_access_expr.array_ref_expr, old_node->data.array_access_expr.array_ref_expr, next_node_index); + clone_subtree_field(&new_node->data.array_access_expr.subscript, old_node->data.array_access_expr.subscript, next_node_index); + break; + case NodeTypeSliceExpr: + clone_subtree_field(&new_node->data.slice_expr.array_ref_expr, old_node->data.slice_expr.array_ref_expr, next_node_index); + clone_subtree_field(&new_node->data.slice_expr.start, old_node->data.slice_expr.start, next_node_index); + clone_subtree_field(&new_node->data.slice_expr.end, old_node->data.slice_expr.end, next_node_index); + break; + case NodeTypeFieldAccessExpr: + clone_subtree_field(&new_node->data.field_access_expr.struct_expr, old_node->data.field_access_expr.struct_expr, next_node_index); + break; + case NodeTypeUse: + clone_subtree_field(&new_node->data.use.expr, old_node->data.use.expr, next_node_index); + clone_subtree_list_ptr(&new_node->data.use.top_level_decl.directives, + old_node->data.use.top_level_decl.directives, next_node_index); + break; + case NodeTypeBoolLiteral: + // none + break; + case NodeTypeNullLiteral: + // none + break; + case NodeTypeUndefinedLiteral: + // none + break; + case NodeTypeIfBoolExpr: + clone_subtree_field(&new_node->data.if_bool_expr.condition, old_node->data.if_bool_expr.condition, next_node_index); + clone_subtree_field(&new_node->data.if_bool_expr.then_block, old_node->data.if_bool_expr.then_block, next_node_index); + clone_subtree_field(&new_node->data.if_bool_expr.else_node, old_node->data.if_bool_expr.else_node, next_node_index); + break; + case NodeTypeIfVarExpr: + clone_subtree_field(&new_node->data.if_var_expr.var_decl.type, old_node->data.if_var_expr.var_decl.type, next_node_index); + clone_subtree_field(&new_node->data.if_var_expr.var_decl.expr, old_node->data.if_var_expr.var_decl.expr, next_node_index); + clone_subtree_field(&new_node->data.if_var_expr.then_block, old_node->data.if_var_expr.then_block, next_node_index); + clone_subtree_field(&new_node->data.if_var_expr.else_node, old_node->data.if_var_expr.else_node, next_node_index); + break; + case NodeTypeWhileExpr: + clone_subtree_field(&new_node->data.while_expr.condition, old_node->data.while_expr.condition, next_node_index); + clone_subtree_field(&new_node->data.while_expr.body, old_node->data.while_expr.body, next_node_index); + break; + case NodeTypeForExpr: + clone_subtree_field(&new_node->data.for_expr.elem_node, old_node->data.for_expr.elem_node, next_node_index); + clone_subtree_field(&new_node->data.for_expr.array_expr, old_node->data.for_expr.array_expr, next_node_index); + clone_subtree_field(&new_node->data.for_expr.index_node, old_node->data.for_expr.index_node, next_node_index); + clone_subtree_field(&new_node->data.for_expr.body, old_node->data.for_expr.body, next_node_index); + break; + case NodeTypeSwitchExpr: + clone_subtree_field(&new_node->data.switch_expr.expr, old_node->data.switch_expr.expr, next_node_index); + clone_subtree_list(&new_node->data.switch_expr.prongs, &old_node->data.switch_expr.prongs, + next_node_index); + break; + case NodeTypeSwitchProng: + clone_subtree_list(&new_node->data.switch_prong.items, &old_node->data.switch_prong.items, + next_node_index); + clone_subtree_field(&new_node->data.switch_prong.var_symbol, old_node->data.switch_prong.var_symbol, next_node_index); + clone_subtree_field(&new_node->data.switch_prong.expr, old_node->data.switch_prong.expr, next_node_index); + break; + case NodeTypeSwitchRange: + clone_subtree_field(&new_node->data.switch_range.start, old_node->data.switch_range.start, next_node_index); + clone_subtree_field(&new_node->data.switch_range.end, old_node->data.switch_range.end, next_node_index); + break; + case NodeTypeLabel: + // none + break; + case NodeTypeGoto: + // none + break; + case NodeTypeBreak: + // none + break; + case NodeTypeContinue: + // none + break; + case NodeTypeAsmExpr: + zig_panic("TODO"); + break; + case NodeTypeStructDecl: + clone_subtree_list(&new_node->data.struct_decl.fields, &old_node->data.struct_decl.fields, + next_node_index); + clone_subtree_list(&new_node->data.struct_decl.fns, &old_node->data.struct_decl.fns, + next_node_index); + clone_subtree_list_ptr(&new_node->data.struct_decl.top_level_decl.directives, + old_node->data.struct_decl.top_level_decl.directives, next_node_index); + break; + case NodeTypeStructField: + clone_subtree_field(&new_node->data.struct_field.type, old_node->data.struct_field.type, next_node_index); + clone_subtree_list_ptr(&new_node->data.struct_field.top_level_decl.directives, + old_node->data.struct_field.top_level_decl.directives, next_node_index); + break; + case NodeTypeContainerInitExpr: + clone_subtree_field(&new_node->data.container_init_expr.type, old_node->data.container_init_expr.type, next_node_index); + clone_subtree_list(&new_node->data.container_init_expr.entries, + &old_node->data.container_init_expr.entries, next_node_index); + break; + case NodeTypeStructValueField: + clone_subtree_field(&new_node->data.struct_val_field.expr, old_node->data.struct_val_field.expr, next_node_index); + break; + case NodeTypeArrayType: + clone_subtree_field(&new_node->data.array_type.size, old_node->data.array_type.size, next_node_index); + clone_subtree_field(&new_node->data.array_type.child_type, old_node->data.array_type.child_type, next_node_index); + break; + case NodeTypeErrorType: + // none + break; + case NodeTypeTypeLiteral: + // none + break; + } + return new_node; } |