mirror of
https://github.com/Ed94/raddebugger.git
synced 2026-06-13 07:32:23 -07:00
Ryan Fleury
1373 lines
50 KiB
C
1373 lines
50 KiB
C
// Copyright (c) 2024 Epic Games Tools
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// Licensed under the MIT license (https://opensource.org/license/mit/)
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////////////////////////////////
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//~ rjf: Tables
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global read_only String8 eval_g_multichar_symbol_strings[] =
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{
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str8_lit_comp("<<"),
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str8_lit_comp(">>"),
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str8_lit_comp("->"),
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str8_lit_comp("<="),
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str8_lit_comp(">="),
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str8_lit_comp("=="),
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str8_lit_comp("!="),
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str8_lit_comp("&&"),
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str8_lit_comp("||"),
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};
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global read_only struct {EVAL_ExprKind kind; String8 string; S64 precedence;} eval_g_unary_prefix_op_table[] =
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{
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// { EVAL_ExprKind_???, str8_lit_comp("+"), 2 },
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{ EVAL_ExprKind_Neg, str8_lit_comp("-"), 2 },
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{ EVAL_ExprKind_LogNot, str8_lit_comp("!"), 2 },
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{ EVAL_ExprKind_Deref, str8_lit_comp("*"), 2 },
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{ EVAL_ExprKind_Address,str8_lit_comp("&"), 2 },
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{ EVAL_ExprKind_Sizeof, str8_lit_comp("sizeof"), 2 },
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// { EVAL_ExprKind_Alignof, str8_lit_comp("_Alignof"), 2 },
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};
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global read_only struct {EVAL_ExprKind kind; String8 string; S64 precedence;} eval_g_binary_op_table[] =
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{
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{ EVAL_ExprKind_Mul, str8_lit_comp("*"), 3 },
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{ EVAL_ExprKind_Div, str8_lit_comp("/"), 3 },
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{ EVAL_ExprKind_Mod, str8_lit_comp("%"), 3 },
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{ EVAL_ExprKind_Add, str8_lit_comp("+"), 4 },
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{ EVAL_ExprKind_Sub, str8_lit_comp("-"), 4 },
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{ EVAL_ExprKind_LShift, str8_lit_comp("<<"), 5 },
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{ EVAL_ExprKind_RShift, str8_lit_comp(">>"), 5 },
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{ EVAL_ExprKind_Less, str8_lit_comp("<"), 6 },
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{ EVAL_ExprKind_LsEq, str8_lit_comp("<="), 6 },
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{ EVAL_ExprKind_Grtr, str8_lit_comp(">"), 6 },
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{ EVAL_ExprKind_GrEq, str8_lit_comp(">="), 6 },
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{ EVAL_ExprKind_EqEq, str8_lit_comp("=="), 7 },
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{ EVAL_ExprKind_NtEq, str8_lit_comp("!="), 7 },
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{ EVAL_ExprKind_BitAnd, str8_lit_comp("&"), 8 },
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{ EVAL_ExprKind_BitXor, str8_lit_comp("^"), 9 },
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{ EVAL_ExprKind_BitOr, str8_lit_comp("|"), 10 },
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{ EVAL_ExprKind_LogAnd, str8_lit_comp("&&"), 11 },
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{ EVAL_ExprKind_LogOr, str8_lit_comp("||"), 12 },
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};
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global read_only S64 eval_g_max_precedence = 15;
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////////////////////////////////
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//~ rjf: Basic Functions
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internal U64
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eval_hash_from_string(String8 string)
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{
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U64 result = 5381;
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for(U64 i = 0; i < string.size; i += 1)
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{
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result = ((result << 5) + result) + string.str[i];
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}
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return result;
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}
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////////////////////////////////
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//~ rjf: Map Functions
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internal EVAL_String2NumMap
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eval_string2num_map_make(Arena *arena, U64 slot_count)
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{
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EVAL_String2NumMap map = {0};
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map.slots_count = slot_count;
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map.slots = push_array(arena, EVAL_String2NumMapSlot, map.slots_count);
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return map;
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}
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internal void
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eval_string2num_map_insert(Arena *arena, EVAL_String2NumMap *map, String8 string, U64 num)
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{
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U64 hash = eval_hash_from_string(string);
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U64 slot_idx = hash%map->slots_count;
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EVAL_String2NumMapNode *existing_node = 0;
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for(EVAL_String2NumMapNode *node = map->slots[slot_idx].first; node != 0; node = node->next)
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{
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if(str8_match(node->string, string, 0) && node->num == num)
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{
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existing_node = node;
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break;
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}
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}
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if(existing_node == 0)
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{
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EVAL_String2NumMapNode *node = push_array(arena, EVAL_String2NumMapNode, 1);
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SLLQueuePush(map->slots[slot_idx].first, map->slots[slot_idx].last, node);
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node->string = string;
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node->num = num;
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}
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}
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internal U64
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eval_num_from_string(EVAL_String2NumMap *map, String8 string)
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{
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U64 num = 0;
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if(map->slots_count != 0)
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{
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U64 hash = eval_hash_from_string(string);
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U64 slot_idx = hash%map->slots_count;
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EVAL_String2NumMapNode *existing_node = 0;
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for(EVAL_String2NumMapNode *node = map->slots[slot_idx].first; node != 0; node = node->next)
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{
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if(str8_match(node->string, string, 0))
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{
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existing_node = node;
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break;
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}
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}
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if(existing_node != 0)
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{
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num = existing_node->num;
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}
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}
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return num;
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}
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////////////////////////////////
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//~ rjf: Map Building Fast Paths
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internal EVAL_String2NumMap *
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eval_push_locals_map_from_raddbg_voff(Arena *arena, RADDBG_Parsed *rdbg, U64 voff)
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{
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//- rjf: voff -> tightest scope
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RADDBG_Scope *tightest_scope = 0;
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if(rdbg->scope_vmap != 0 && rdbg->scopes != 0)
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{
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U64 scope_idx = raddbg_vmap_idx_from_voff(rdbg->scope_vmap, rdbg->scope_vmap_count, voff);
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tightest_scope = &rdbg->scopes[scope_idx];
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}
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//- rjf: build blank map
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EVAL_String2NumMap *map = push_array(arena, EVAL_String2NumMap, 1);
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*map = eval_string2num_map_make(arena, 1024);
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//- rjf: tightest scope -> walk up the tree & accumulate all locals
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for(RADDBG_Scope *scope = tightest_scope;
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scope != 0 && scope != &rdbg->scopes[0];
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scope = &rdbg->scopes[scope->parent_scope_idx])
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{
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U32 local_opl_idx = scope->local_first + scope->local_count;
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for(U32 local_idx = scope->local_first; local_idx < local_opl_idx; local_idx += 1)
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{
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RADDBG_Local *local_var = &rdbg->locals[local_idx];
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U64 local_name_size = 0;
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U8 *local_name_str = raddbg_string_from_idx(rdbg, local_var->name_string_idx, &local_name_size);
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String8 name = push_str8_copy(arena, str8(local_name_str, local_name_size));
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eval_string2num_map_insert(arena, map, name, (U64)local_idx+1);
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}
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}
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return map;
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}
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internal EVAL_String2NumMap *
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eval_push_member_map_from_raddbg_voff(Arena *arena, RADDBG_Parsed *rdbg, U64 voff)
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{
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//- rjf: voff -> tightest scope
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RADDBG_Scope *tightest_scope = 0;
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if(rdbg->scope_vmap != 0 && rdbg->scopes != 0)
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{
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U64 scope_idx = raddbg_vmap_idx_from_voff(rdbg->scope_vmap, rdbg->scope_vmap_count, voff);
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tightest_scope = &rdbg->scopes[scope_idx];
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}
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//- rjf: tightest scope -> procedure
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RADDBG_Procedure *procedure = 0;
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if(tightest_scope != 0 && rdbg->procedures != 0)
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{
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U32 proc_idx = tightest_scope->proc_idx;
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if(0 < proc_idx && proc_idx < rdbg->procedure_count)
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{
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procedure = &rdbg->procedures[proc_idx];
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}
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}
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//- rjf: procedure -> udt
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RADDBG_UDT *udt = 0;
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if(procedure != 0 && rdbg->udts != 0 && procedure->link_flags & RADDBG_LinkFlag_TypeScoped)
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{
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U32 udt_idx = procedure->container_idx;
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if(0 < udt_idx && udt_idx < rdbg->udt_count)
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{
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udt = &rdbg->udts[udt_idx];
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}
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}
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//- rjf: build blank map
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EVAL_String2NumMap *map = push_array(arena, EVAL_String2NumMap, 1);
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*map = eval_string2num_map_make(arena, 64);
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//- rjf: udt -> fill member map
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if(udt != 0 && !(udt->flags & RADDBG_UserDefinedTypeFlag_EnumMembers) && rdbg->members != 0)
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{
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U64 data_member_num = 1;
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for(U32 member_idx = udt->member_first;
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member_idx < udt->member_first+udt->member_count;
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member_idx += 1)
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{
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if(member_idx < 1 || rdbg->member_count <= member_idx)
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{
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break;
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}
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RADDBG_Member *m = &rdbg->members[member_idx];
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if(m->kind == RADDBG_MemberKind_DataField)
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{
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String8 name = {0};
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name.str = raddbg_string_from_idx(rdbg, m->name_string_idx, &name.size);
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eval_string2num_map_insert(arena, map, name, data_member_num);
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data_member_num += 1;
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}
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}
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}
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return map;
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}
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////////////////////////////////
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//~ rjf: Tokenization Functions
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internal EVAL_Token
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eval_token_zero(void)
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{
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EVAL_Token token = zero_struct;
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return token;
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}
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internal void
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eval_token_chunk_list_push(Arena *arena, EVAL_TokenChunkList *list, U64 chunk_size, EVAL_Token *token)
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{
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EVAL_TokenChunkNode *node = list->last;
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if(node == 0 || node->count >= node->cap)
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{
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node = push_array(arena, EVAL_TokenChunkNode, 1);
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SLLQueuePush(list->first, list->last, node);
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node->cap = chunk_size;
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node->v = push_array_no_zero(arena, EVAL_Token, node->cap);
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list->node_count += 1;
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}
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MemoryCopyStruct(&node->v[node->count], token);
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node->count += 1;
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list->total_count += 1;
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}
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internal EVAL_TokenArray
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eval_token_array_from_chunk_list(Arena *arena, EVAL_TokenChunkList *list)
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{
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EVAL_TokenArray array = {0};
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array.count = list->total_count;
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array.v = push_array_no_zero(arena, EVAL_Token, array.count);
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U64 idx = 0;
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for(EVAL_TokenChunkNode *node = list->first; node != 0; node = node->next)
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{
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MemoryCopy(array.v+idx, node->v, sizeof(EVAL_Token)*node->count);
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}
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return array;
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}
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internal EVAL_TokenArray
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eval_token_array_from_text(Arena *arena, String8 text)
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{
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Temp scratch = scratch_begin(&arena, 1);
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//- rjf: lex loop
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EVAL_TokenChunkList tokens = {0};
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U64 active_token_start_idx = 0;
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EVAL_TokenKind active_token_kind = EVAL_TokenKind_Null;
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B32 escaped = 0;
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for(U64 idx = 0, advance = 0; idx <= text.size; idx += advance)
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{
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U8 byte = (idx+0 < text.size) ? text.str[idx+0] : 0;
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U8 byte_next = (idx+1 < text.size) ? text.str[idx+1] : 0;
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U8 byte_next2= (idx+2 < text.size) ? text.str[idx+2] : 0;
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advance = 1;
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B32 token_formed = 0;
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U64 token_end_idx_pad = 0;
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switch(active_token_kind)
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{
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//- rjf: no active token -> seek token starter
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default:
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{
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if(char_is_alpha(byte) || byte == '_')
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{
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active_token_kind = EVAL_TokenKind_Identifier;
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active_token_start_idx = idx;
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}
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else if(char_is_digit(byte, 10) || (byte == '.' && char_is_digit(byte_next, 10)))
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{
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active_token_kind = EVAL_TokenKind_Numeric;
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active_token_start_idx = idx;
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}
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else if(byte == '"')
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{
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active_token_kind = EVAL_TokenKind_StringLiteral;
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active_token_start_idx = idx;
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}
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else if(byte == '\'')
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{
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active_token_kind = EVAL_TokenKind_CharLiteral;
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active_token_start_idx = idx;
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}
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else if(byte == '~' || byte == '!' || byte == '%' || byte == '^' ||
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byte == '&' || byte == '*' || byte == '(' || byte == ')' ||
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byte == '-' || byte == '=' || byte == '+' || byte == '[' ||
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byte == ']' || byte == '{' || byte == '}' || byte == ':' ||
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byte == ';' || byte == ',' || byte == '.' || byte == '<' ||
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byte == '>' || byte == '/' || byte == '?' || byte == '|')
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{
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active_token_kind = EVAL_TokenKind_Symbol;
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active_token_start_idx = idx;
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}
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}break;
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//- rjf: active tokens -> seek enders
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case EVAL_TokenKind_Identifier:
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{
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if(byte == ':' && byte_next == ':' && (char_is_alpha(byte_next2) || byte_next2 == '_'))
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{
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// NOTE(rjf): encountering C++-style namespaces - skip over scope resolution symbol
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// & keep going.
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advance = 2;
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}
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else if(!char_is_alpha(byte) && !char_is_digit(byte, 10) && byte != '_')
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{
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advance = 0;
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token_formed = 1;
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}
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}break;
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case EVAL_TokenKind_Numeric:
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{
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if(!char_is_alpha(byte) && !char_is_digit(byte, 10) && byte != '.')
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{
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advance = 0;
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token_formed = 1;
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}
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}break;
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case EVAL_TokenKind_StringLiteral:
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{
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if(escaped == 0 && byte == '\\')
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{
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escaped = 1;
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}
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else if(escaped)
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{
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escaped = 0;
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}
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else if(escaped == 0 && byte == '"')
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{
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advance = 1;
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token_formed = 1;
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token_end_idx_pad = 1;
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}
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}break;
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case EVAL_TokenKind_CharLiteral:
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{
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if(escaped == 0 && byte == '\\')
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{
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escaped = 1;
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}
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else if(escaped)
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{
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escaped = 0;
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}
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else if(escaped == 0 && byte == '\'')
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{
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advance = 1;
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token_formed = 1;
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token_end_idx_pad = 1;
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}
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}break;
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case EVAL_TokenKind_Symbol:
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{
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if(byte != '~' && byte != '!' && byte != '%' && byte != '^' &&
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byte != '&' && byte != '*' && byte != '(' && byte != ')' &&
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byte != '-' && byte != '=' && byte != '+' && byte != '[' &&
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byte != ']' && byte != '{' && byte != '}' && byte != ':' &&
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byte != ';' && byte != ',' && byte != '.' && byte != '<' &&
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byte != '>' && byte != '/' && byte != '?' && byte != '|')
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{
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advance = 0;
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token_formed = 1;
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}
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}break;
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}
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//- rjf: token formed -> push new formed token(s)
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if(token_formed)
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{
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// rjf: non-symbols *or* symbols of only 1-length can be immediately
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// pushed as a token
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if(active_token_kind != EVAL_TokenKind_Symbol || idx==active_token_start_idx+1)
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{
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EVAL_Token token = {active_token_kind, r1u64(active_token_start_idx, idx+token_end_idx_pad)};
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eval_token_chunk_list_push(scratch.arena, &tokens, 256, &token);
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}
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// rjf: if we got a symbol string of N>1 characters, then we need to
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// apply the maximum-munch rule, and produce M<=N tokens, where each
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// formed token is the maximum size possible, given the legal
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// >1-length symbol strings.
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else
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{
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U64 advance2 = 0;
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for(U64 idx2 = active_token_start_idx; idx2 < idx; idx2 += advance2)
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{
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advance2 = 1;
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for(U64 multichar_symbol_idx = 0;
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multichar_symbol_idx < ArrayCount(eval_g_multichar_symbol_strings);
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multichar_symbol_idx += 1)
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{
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String8 multichar_symbol_string = eval_g_multichar_symbol_strings[multichar_symbol_idx];
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String8 part_of_token = str8_substr(text, r1u64(idx2, idx2+multichar_symbol_string.size));
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if(str8_match(part_of_token, multichar_symbol_string, 0))
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{
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advance2 = multichar_symbol_string.size;
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break;
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}
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}
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EVAL_Token token = {active_token_kind, r1u64(idx2, idx2+advance2)};
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eval_token_chunk_list_push(scratch.arena, &tokens, 256, &token);
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}
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}
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// rjf: reset for subsequent tokens.
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active_token_kind = EVAL_TokenKind_Null;
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}
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}
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//- rjf: chunk list -> array & return
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EVAL_TokenArray array = eval_token_array_from_chunk_list(arena, &tokens);
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scratch_end(scratch);
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return array;
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}
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internal EVAL_TokenArray
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eval_token_array_make_first_opl(EVAL_Token *first, EVAL_Token *opl)
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{
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EVAL_TokenArray array = {first, (U64)(opl-first)};
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return array;
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}
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////////////////////////////////
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//~ rjf: Parser Functions
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internal TG_Key
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eval_leaf_type_from_name(RADDBG_Parsed *rdbg, String8 name)
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{
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TG_Key key = zero_struct;
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B32 found = 0;
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if(rdbg->type_nodes != 0)
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{
|
|
RADDBG_NameMap *name_map = raddbg_name_map_from_kind(rdbg, RADDBG_NameMapKind_Types);
|
|
RADDBG_ParsedNameMap parsed_name_map = {0};
|
|
raddbg_name_map_parse(rdbg, name_map, &parsed_name_map);
|
|
RADDBG_NameMapNode *node = raddbg_name_map_lookup(rdbg, &parsed_name_map, name.str, name.size);
|
|
if(node != 0)
|
|
{
|
|
U32 match_count = 0;
|
|
U32 *matches = raddbg_matches_from_map_node(rdbg, node, &match_count);
|
|
if(match_count != 0)
|
|
{
|
|
U32 type_node_idx = matches[match_count-1];
|
|
if(type_node_idx < rdbg->type_node_count)
|
|
{
|
|
RADDBG_TypeNode *type_node = &rdbg->type_nodes[type_node_idx];
|
|
key = tg_key_ext(tg_kind_from_raddbg_type_kind(type_node->kind), (U64)type_node_idx);
|
|
found = 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if(!found)
|
|
{
|
|
#define Case(str) (str8_match(name, str8_lit(str), 0))
|
|
if(Case("u8") || Case("uint8") || Case("uint8_t") || Case("uchar8") || Case("U8"))
|
|
{
|
|
key = tg_key_basic(TG_Kind_U8);
|
|
}
|
|
else if(Case("u16") || Case("uint16") || Case("uint16_t") || Case("uchar16") || Case("U16"))
|
|
{
|
|
key = tg_key_basic(TG_Kind_U16);
|
|
}
|
|
else if(Case("u32") || Case("uint32") || Case("uint32_t") || Case("uchar32") || Case("U32") || Case("uint"))
|
|
{
|
|
key = tg_key_basic(TG_Kind_U32);
|
|
}
|
|
else if(Case("u64") || Case("uint64") || Case("uint64_t") || Case("U64"))
|
|
{
|
|
key = tg_key_basic(TG_Kind_U64);
|
|
}
|
|
else if(Case("s8") || Case("b8") || Case("B8") || Case("i8") || Case("int8") || Case("int8_t") || Case("char8") || Case("S8"))
|
|
{
|
|
key = tg_key_basic(TG_Kind_S8);
|
|
}
|
|
else if(Case("s16") ||Case("b16") || Case("B16") || Case("i16") || Case("int16") || Case("int16_t") || Case("char16") || Case("S16"))
|
|
{
|
|
key = tg_key_basic(TG_Kind_S16);
|
|
}
|
|
else if(Case("s32") || Case("b32") || Case("B32") || Case("i32") || Case("int32") || Case("int32_t") || Case("char32") || Case("S32") || Case("int"))
|
|
{
|
|
key = tg_key_basic(TG_Kind_S32);
|
|
}
|
|
else if(Case("s64") || Case("b64") || Case("B64") || Case("i64") || Case("int64") || Case("int64_t") || Case("S64"))
|
|
{
|
|
key = tg_key_basic(TG_Kind_S64);
|
|
}
|
|
else if(Case("void"))
|
|
{
|
|
key = tg_key_basic(TG_Kind_Void);
|
|
}
|
|
else if(Case("bool"))
|
|
{
|
|
key = tg_key_basic(TG_Kind_Bool);
|
|
}
|
|
else if(Case("float") || Case("f32") || Case("F32") || Case("r32") || Case("R32"))
|
|
{
|
|
key = tg_key_basic(TG_Kind_F32);
|
|
}
|
|
else if(Case("double") || Case("f64") || Case("F64") || Case("r64") || Case("R64"))
|
|
{
|
|
key = tg_key_basic(TG_Kind_F64);
|
|
}
|
|
#undef Case
|
|
}
|
|
return key;
|
|
}
|
|
|
|
internal EVAL_ParseResult
|
|
eval_parse_type_from_text_tokens(Arena *arena, EVAL_ParseCtx *ctx, String8 text, EVAL_TokenArray *tokens)
|
|
{
|
|
EVAL_ParseResult parse = eval_parse_result_nil;
|
|
EVAL_Token *token_it = tokens->v;
|
|
|
|
//- rjf: parse unsigned marker
|
|
B32 unsigned_marker = 0;
|
|
{
|
|
EVAL_Token token = eval_token_at_it(token_it, tokens);
|
|
if(token.kind == EVAL_TokenKind_Identifier)
|
|
{
|
|
String8 token_string = str8_substr(text, token.range);
|
|
if(str8_match(token_string, str8_lit("unsigned"), 0))
|
|
{
|
|
token_it += 1;
|
|
unsigned_marker = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
//- rjf: parse base type
|
|
{
|
|
EVAL_Token token = eval_token_at_it(token_it, tokens);
|
|
if(token.kind == EVAL_TokenKind_Identifier)
|
|
{
|
|
String8 token_string = str8_substr(text, token.range);
|
|
TG_Key type_key = eval_leaf_type_from_name(ctx->rdbg, token_string);
|
|
if(!tg_key_match(tg_key_zero(), type_key))
|
|
{
|
|
token_it += 1;
|
|
|
|
// rjf: apply unsigned marker to base type
|
|
if(unsigned_marker) switch(tg_kind_from_key(type_key))
|
|
{
|
|
default:{}break;
|
|
case TG_Kind_Char8: {type_key = tg_key_basic(TG_Kind_UChar8);}break;
|
|
case TG_Kind_Char16:{type_key = tg_key_basic(TG_Kind_UChar16);}break;
|
|
case TG_Kind_Char32:{type_key = tg_key_basic(TG_Kind_UChar32);}break;
|
|
case TG_Kind_S8: {type_key = tg_key_basic(TG_Kind_U8);}break;
|
|
case TG_Kind_S16: {type_key = tg_key_basic(TG_Kind_U16);}break;
|
|
case TG_Kind_S32: {type_key = tg_key_basic(TG_Kind_U32);}break;
|
|
case TG_Kind_S64: {type_key = tg_key_basic(TG_Kind_U64);}break;
|
|
case TG_Kind_S128:{type_key = tg_key_basic(TG_Kind_U128);}break;
|
|
case TG_Kind_S256:{type_key = tg_key_basic(TG_Kind_U256);}break;
|
|
case TG_Kind_S512:{type_key = tg_key_basic(TG_Kind_U512);}break;
|
|
}
|
|
|
|
// rjf: construct leaf type
|
|
parse.expr = eval_expr_leaf_type(arena, token_string.str, type_key);
|
|
}
|
|
}
|
|
}
|
|
|
|
//- rjf: parse extensions
|
|
if(parse.expr != &eval_expr_nil)
|
|
{
|
|
for(;;)
|
|
{
|
|
EVAL_Token token = eval_token_at_it(token_it, tokens);
|
|
if(token.kind != EVAL_TokenKind_Symbol)
|
|
{
|
|
break;
|
|
}
|
|
String8 token_string = str8_substr(text, token.range);
|
|
if(str8_match(token_string, str8_lit("*"), 0))
|
|
{
|
|
token_it += 1;
|
|
parse.expr = eval_expr(arena, EVAL_ExprKind_Ptr, token_string.str, parse.expr, 0, 0);
|
|
}
|
|
else
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
//- rjf: fill parse & end
|
|
parse.last_token = token_it;
|
|
return parse;
|
|
}
|
|
|
|
internal EVAL_ParseResult
|
|
eval_parse_expr_from_text_tokens__prec(Arena *arena, EVAL_ParseCtx *ctx, String8 text, EVAL_TokenArray *tokens, S64 max_precedence)
|
|
{
|
|
Temp scratch = scratch_begin(&arena, 1);
|
|
EVAL_Token *it = tokens->v;
|
|
EVAL_Token *it_opl = tokens->v + tokens->count;
|
|
EVAL_ParseResult result = eval_parse_result_nil;
|
|
|
|
//- rjf: parse prefix unaries
|
|
typedef struct PrefixUnaryNode PrefixUnaryNode;
|
|
struct PrefixUnaryNode
|
|
{
|
|
PrefixUnaryNode *next;
|
|
EVAL_ExprKind kind;
|
|
EVAL_Expr *cast_expr;
|
|
void *location;
|
|
};
|
|
PrefixUnaryNode *first_prefix_unary = 0;
|
|
PrefixUnaryNode *last_prefix_unary = 0;
|
|
{
|
|
for(;it < it_opl;)
|
|
{
|
|
EVAL_Token *start_it = it;
|
|
EVAL_Token token = eval_token_at_it(it, tokens);
|
|
String8 token_string = str8_substr(text, token.range);
|
|
S64 prefix_unary_precedence = 0;
|
|
EVAL_ExprKind prefix_unary_kind = 0;
|
|
EVAL_Expr *cast_expr = &eval_expr_nil;
|
|
void *location = 0;
|
|
|
|
// rjf: try op table
|
|
for(U64 idx = 0; idx < ArrayCount(eval_g_unary_prefix_op_table); idx += 1)
|
|
{
|
|
if(str8_match(token_string, eval_g_unary_prefix_op_table[idx].string, 0))
|
|
{
|
|
prefix_unary_precedence = eval_g_unary_prefix_op_table[idx].precedence;
|
|
prefix_unary_kind = eval_g_unary_prefix_op_table[idx].kind;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// rjf: consume valid op
|
|
if(prefix_unary_precedence != 0)
|
|
{
|
|
location = token_string.str;
|
|
it += 1;
|
|
}
|
|
|
|
// rjf: try casting expression
|
|
if(prefix_unary_precedence == 0 && str8_match(token_string, str8_lit("("), 0))
|
|
{
|
|
EVAL_Token some_type_identifier_maybe = eval_token_at_it(it+1, tokens);
|
|
String8 some_type_identifier_maybe_string = str8_substr(text, some_type_identifier_maybe.range);
|
|
if(some_type_identifier_maybe.kind == EVAL_TokenKind_Identifier)
|
|
{
|
|
TG_Key type_key = eval_leaf_type_from_name(ctx->rdbg, some_type_identifier_maybe_string);
|
|
if(!tg_key_match(type_key, tg_key_zero()) || str8_match(some_type_identifier_maybe_string, str8_lit("unsigned"), 0))
|
|
{
|
|
// rjf: move past open paren
|
|
it += 1;
|
|
|
|
// rjf: parse type expr
|
|
EVAL_TokenArray type_parse_tokens = eval_token_array_make_first_opl(it, it_opl);
|
|
EVAL_ParseResult type_parse = eval_parse_type_from_text_tokens(arena, ctx, text, &type_parse_tokens);
|
|
EVAL_Expr *type = type_parse.expr;
|
|
eval_error_list_concat_in_place(&result.errors, &type_parse.errors);
|
|
it = type_parse.last_token;
|
|
location = token_string.str;
|
|
|
|
// rjf: expect )
|
|
EVAL_Token close_paren_maybe = eval_token_at_it(it, tokens);
|
|
String8 close_paren_maybe_string = str8_substr(text, close_paren_maybe.range);
|
|
if(close_paren_maybe.kind != EVAL_TokenKind_Symbol || !str8_match(close_paren_maybe_string, str8_lit(")"), 0))
|
|
{
|
|
eval_errorf(arena, &result.errors, EVAL_ErrorKind_MalformedInput, token_string.str, "Missing ).");
|
|
}
|
|
|
|
// rjf: consume )
|
|
else
|
|
{
|
|
it += 1;
|
|
}
|
|
|
|
// rjf: fill
|
|
prefix_unary_precedence = 2;
|
|
prefix_unary_kind = EVAL_ExprKind_Cast;
|
|
cast_expr = type;
|
|
}
|
|
}
|
|
}
|
|
|
|
// rjf: break if we got no operators
|
|
if(prefix_unary_precedence == 0)
|
|
{
|
|
break;
|
|
}
|
|
|
|
// rjf: break if the token node iterator has not changed
|
|
if(it == start_it)
|
|
{
|
|
break;
|
|
}
|
|
|
|
// rjf: push prefix unary if we got one
|
|
{
|
|
PrefixUnaryNode *op_n = push_array(scratch.arena, PrefixUnaryNode, 1);
|
|
op_n->kind = prefix_unary_kind;
|
|
op_n->cast_expr = cast_expr;
|
|
op_n->location = location;
|
|
SLLQueuePushFront(first_prefix_unary, last_prefix_unary, op_n);
|
|
}
|
|
}
|
|
}
|
|
|
|
//- rjf: parse atom
|
|
EVAL_Expr *atom = &eval_expr_nil;
|
|
String8 atom_implicit_member_name = {0};
|
|
if(it < it_opl)
|
|
{
|
|
EVAL_Token token = eval_token_at_it(it, tokens);
|
|
String8 token_string = str8_substr(text, token.range);
|
|
|
|
//- rjf: descent to nested expression
|
|
if(token.kind == EVAL_TokenKind_Symbol && str8_match(token_string, str8_lit("("), 0))
|
|
{
|
|
// rjf: skip (
|
|
it += 1;
|
|
|
|
// rjf: parse () contents
|
|
EVAL_TokenArray nested_parse_tokens = eval_token_array_make_first_opl(it, it_opl);
|
|
EVAL_ParseResult nested_parse = eval_parse_expr_from_text_tokens__prec(arena, ctx, text, &nested_parse_tokens, eval_g_max_precedence);
|
|
eval_error_list_concat_in_place(&result.errors, &nested_parse.errors);
|
|
atom = nested_parse.expr;
|
|
it = nested_parse.last_token;
|
|
|
|
// rjf: expect )
|
|
EVAL_Token close_paren_maybe = eval_token_at_it(it, tokens);
|
|
String8 close_paren_maybe_string = str8_substr(text, close_paren_maybe.range);
|
|
if(close_paren_maybe.kind != EVAL_TokenKind_Symbol || !str8_match(close_paren_maybe_string, str8_lit(")"), 0))
|
|
{
|
|
eval_errorf(arena, &result.errors, EVAL_ErrorKind_MalformedInput, token_string.str, "Missing ).");
|
|
}
|
|
|
|
// rjf: consume )
|
|
else
|
|
{
|
|
it += 1;
|
|
}
|
|
}
|
|
|
|
//- rjf: leaf (identifier, literal)
|
|
else if(token.kind != EVAL_TokenKind_Symbol)
|
|
{
|
|
switch(token.kind)
|
|
{
|
|
//- rjf: identifier => name resolution
|
|
default:
|
|
case EVAL_TokenKind_Identifier:
|
|
{
|
|
B32 mapped_identifier = 0;
|
|
B32 identifier_looks_like_type_expr = 0;
|
|
RADDBG_LocationKind loc_kind = RADDBG_LocationKind_NULL;
|
|
RADDBG_LocationRegister loc_reg = {0};
|
|
RADDBG_LocationRegisterPlusU16 loc_reg_u16 = {0};
|
|
String8 loc_bytecode = {0};
|
|
REGS_RegCode reg_code = 0;
|
|
REGS_AliasCode alias_code = 0;
|
|
TG_Key type_key = zero_struct;
|
|
String8 local_lookup_string = token_string;
|
|
|
|
//- rjf: try members
|
|
if(mapped_identifier == 0)
|
|
{
|
|
U64 data_member_num = eval_num_from_string(ctx->member_map, token_string);
|
|
if(data_member_num != 0)
|
|
{
|
|
atom_implicit_member_name = token_string;
|
|
local_lookup_string = str8_lit("this");
|
|
}
|
|
}
|
|
|
|
//- rjf: try locals
|
|
if(mapped_identifier == 0)
|
|
{
|
|
U64 local_num = eval_num_from_string(ctx->locals_map, local_lookup_string);
|
|
if(local_num != 0 &&
|
|
ctx->rdbg->locals != 0 && (1 <= local_num && local_num <= ctx->rdbg->local_count) &&
|
|
ctx->rdbg->type_nodes != 0)
|
|
{
|
|
mapped_identifier = 1;
|
|
RADDBG_Local *local_var = &ctx->rdbg->locals[local_num-1];
|
|
|
|
// rjf: grab location info
|
|
for(U32 loc_block_idx = local_var->location_first;
|
|
loc_block_idx < local_var->location_opl;
|
|
loc_block_idx += 1)
|
|
{
|
|
RADDBG_LocationBlock *block = &ctx->rdbg->location_blocks[loc_block_idx];
|
|
if(block->scope_off_first <= ctx->ip_voff && ctx->ip_voff < block->scope_off_opl)
|
|
{
|
|
loc_kind = *((RADDBG_LocationKind *)(ctx->rdbg->location_data + block->location_data_off));
|
|
switch(loc_kind)
|
|
{
|
|
default:{mapped_identifier = 0;}break;
|
|
case RADDBG_LocationKind_AddrBytecodeStream:
|
|
case RADDBG_LocationKind_ValBytecodeStream:
|
|
{
|
|
U8 *bytecode_base = ctx->rdbg->location_data + block->location_data_off + sizeof(RADDBG_LocationKind);
|
|
loc_bytecode = str8_cstring((char *)bytecode_base);
|
|
}break;
|
|
case RADDBG_LocationKind_AddrRegisterPlusU16:
|
|
case RADDBG_LocationKind_AddrAddrRegisterPlusU16:
|
|
{
|
|
MemoryCopy(&loc_reg_u16, (ctx->rdbg->location_data + block->location_data_off), sizeof(loc_reg_u16));
|
|
}break;
|
|
case RADDBG_LocationKind_ValRegister:
|
|
{
|
|
MemoryCopy(&loc_reg, (ctx->rdbg->location_data + block->location_data_off), sizeof(loc_reg));
|
|
}break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// rjf: get type
|
|
if(0 <= local_var->type_idx && local_var->type_idx < ctx->rdbg->type_node_count)
|
|
{
|
|
U32 type_idx = local_var->type_idx;
|
|
RADDBG_TypeNode *type_node = &ctx->rdbg->type_nodes[type_idx];
|
|
type_key = tg_key_ext(tg_kind_from_raddbg_type_kind(type_node->kind), (U64)type_idx);
|
|
}
|
|
}
|
|
}
|
|
|
|
//- rjf: try registers
|
|
if(mapped_identifier == 0)
|
|
{
|
|
U64 reg_num = eval_num_from_string(ctx->regs_map, token_string);
|
|
if(reg_num != 0)
|
|
{
|
|
reg_code = reg_num;
|
|
mapped_identifier = 1;
|
|
type_key = tg_key_reg(ctx->arch, reg_code);
|
|
}
|
|
}
|
|
|
|
//- rjf: try register aliases
|
|
if(mapped_identifier == 0)
|
|
{
|
|
U64 alias_num = eval_num_from_string(ctx->reg_alias_map, token_string);
|
|
if(alias_num != 0)
|
|
{
|
|
alias_code = (REGS_AliasCode)alias_num;
|
|
type_key = tg_key_reg_alias(ctx->arch, alias_code);
|
|
mapped_identifier = 1;
|
|
}
|
|
}
|
|
|
|
//- rjf: try global variables
|
|
if(mapped_identifier == 0)
|
|
{
|
|
RADDBG_NameMap *name_map = raddbg_name_map_from_kind(ctx->rdbg, RADDBG_NameMapKind_GlobalVariables);
|
|
if(name_map != 0 && ctx->rdbg->global_variables != 0)
|
|
{
|
|
RADDBG_ParsedNameMap parsed_name_map = {0};
|
|
raddbg_name_map_parse(ctx->rdbg, name_map, &parsed_name_map);
|
|
RADDBG_NameMapNode *node = raddbg_name_map_lookup(ctx->rdbg, &parsed_name_map, token_string.str, token_string.size);
|
|
U32 matches_count = 0;
|
|
U32 *matches = raddbg_matches_from_map_node(ctx->rdbg, node, &matches_count);
|
|
if(matches_count != 0)
|
|
{
|
|
U32 match_idx = matches[0];
|
|
RADDBG_GlobalVariable *global_var = &ctx->rdbg->global_variables[match_idx];
|
|
EVAL_OpList oplist = {0};
|
|
eval_oplist_push_op(arena, &oplist, RADDBG_EvalOp_ModuleOff, global_var->voff);
|
|
loc_kind = RADDBG_LocationKind_AddrBytecodeStream;
|
|
loc_bytecode = eval_bytecode_from_oplist(arena, &oplist);
|
|
U32 type_idx = global_var->type_idx;
|
|
if(type_idx < ctx->rdbg->type_node_count)
|
|
{
|
|
RADDBG_TypeNode *type_node = &ctx->rdbg->type_nodes[type_idx];
|
|
type_key = tg_key_ext(tg_kind_from_raddbg_type_kind(type_node->kind), (U64)type_idx);
|
|
}
|
|
mapped_identifier = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
//- rjf: try thread variables
|
|
if(mapped_identifier == 0)
|
|
{
|
|
RADDBG_NameMap *name_map = raddbg_name_map_from_kind(ctx->rdbg, RADDBG_NameMapKind_ThreadVariables);
|
|
if(name_map != 0 && ctx->rdbg->global_variables != 0)
|
|
{
|
|
RADDBG_ParsedNameMap parsed_name_map = {0};
|
|
raddbg_name_map_parse(ctx->rdbg, name_map, &parsed_name_map);
|
|
RADDBG_NameMapNode *node = raddbg_name_map_lookup(ctx->rdbg, &parsed_name_map, token_string.str, token_string.size);
|
|
U32 matches_count = 0;
|
|
U32 *matches = raddbg_matches_from_map_node(ctx->rdbg, node, &matches_count);
|
|
if(matches_count != 0)
|
|
{
|
|
U32 match_idx = matches[0];
|
|
RADDBG_ThreadVariable *thread_var = &ctx->rdbg->thread_variables[match_idx];
|
|
EVAL_OpList oplist = {0};
|
|
eval_oplist_push_op(arena, &oplist, RADDBG_EvalOp_TLSOff, thread_var->tls_off);
|
|
loc_kind = RADDBG_LocationKind_AddrBytecodeStream;
|
|
loc_bytecode = eval_bytecode_from_oplist(arena, &oplist);
|
|
U32 type_idx = thread_var->type_idx;
|
|
if(type_idx < ctx->rdbg->type_node_count)
|
|
{
|
|
RADDBG_TypeNode *type_node = &ctx->rdbg->type_nodes[type_idx];
|
|
type_key = tg_key_ext(tg_kind_from_raddbg_type_kind(type_node->kind), (U64)type_idx);
|
|
}
|
|
mapped_identifier = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
//- rjf: try procedures
|
|
if(mapped_identifier == 0)
|
|
{
|
|
RADDBG_NameMap *name_map = raddbg_name_map_from_kind(ctx->rdbg, RADDBG_NameMapKind_Procedures);
|
|
if(name_map != 0 && ctx->rdbg->procedures != 0 && ctx->rdbg->scopes != 0 && ctx->rdbg->scope_voffs)
|
|
{
|
|
RADDBG_ParsedNameMap parsed_name_map = {0};
|
|
raddbg_name_map_parse(ctx->rdbg, name_map, &parsed_name_map);
|
|
RADDBG_NameMapNode *node = raddbg_name_map_lookup(ctx->rdbg, &parsed_name_map, token_string.str, token_string.size);
|
|
U32 matches_count = 0;
|
|
U32 *matches = raddbg_matches_from_map_node(ctx->rdbg, node, &matches_count);
|
|
if(matches_count != 0)
|
|
{
|
|
U32 match_idx = matches[0];
|
|
RADDBG_Procedure *procedure = &ctx->rdbg->procedures[match_idx];
|
|
RADDBG_Scope *scope = &ctx->rdbg->scopes[procedure->root_scope_idx];
|
|
U64 voff = ctx->rdbg->scope_voffs[scope->voff_range_first];
|
|
EVAL_OpList oplist = {0};
|
|
eval_oplist_push_op(arena, &oplist, RADDBG_EvalOp_ModuleOff, voff);
|
|
loc_kind = RADDBG_LocationKind_ValBytecodeStream;
|
|
loc_bytecode = eval_bytecode_from_oplist(arena, &oplist);
|
|
U32 type_idx = procedure->type_idx;
|
|
if(type_idx < ctx->rdbg->type_node_count)
|
|
{
|
|
RADDBG_TypeNode *type_node = &ctx->rdbg->type_nodes[type_idx];
|
|
type_key = tg_key_ext(tg_kind_from_raddbg_type_kind(type_node->kind), (U64)type_idx);
|
|
}
|
|
mapped_identifier = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
//- rjf: try types
|
|
if(mapped_identifier == 0)
|
|
{
|
|
type_key = eval_leaf_type_from_name(ctx->rdbg, token_string);
|
|
if(!tg_key_match(tg_key_zero(), type_key))
|
|
{
|
|
mapped_identifier = 1;
|
|
identifier_looks_like_type_expr = 1;
|
|
}
|
|
}
|
|
|
|
//- rjf: attach on map
|
|
if(mapped_identifier != 0)
|
|
{
|
|
it += 1;
|
|
|
|
// rjf: build atom
|
|
switch(loc_kind)
|
|
{
|
|
default:
|
|
{
|
|
if(identifier_looks_like_type_expr)
|
|
{
|
|
EVAL_TokenArray type_parse_tokens = eval_token_array_make_first_opl(it-1, it_opl);
|
|
EVAL_ParseResult type_parse = eval_parse_type_from_text_tokens(arena, ctx, text, &type_parse_tokens);
|
|
EVAL_Expr *type = type_parse.expr;
|
|
eval_error_list_concat_in_place(&result.errors, &type_parse.errors);
|
|
it = type_parse.last_token;
|
|
atom = type;
|
|
}
|
|
else if(reg_code != 0)
|
|
{
|
|
REGS_Rng reg_rng = regs_reg_code_rng_table_from_architecture(ctx->arch)[reg_code];
|
|
EVAL_OpList oplist = {0};
|
|
eval_oplist_push_uconst(arena, &oplist, reg_rng.byte_off);
|
|
atom = eval_expr_leaf_op_list(arena, token_string.str, type_key, &oplist, EVAL_EvalMode_Reg);
|
|
}
|
|
else if(alias_code != 0)
|
|
{
|
|
REGS_Slice alias_slice = regs_alias_code_slice_table_from_architecture(ctx->arch)[alias_code];
|
|
REGS_Rng alias_reg_rng = regs_reg_code_rng_table_from_architecture(ctx->arch)[alias_slice.code];
|
|
EVAL_OpList oplist = {0};
|
|
eval_oplist_push_uconst(arena, &oplist, alias_reg_rng.byte_off + alias_slice.byte_off);
|
|
atom = eval_expr_leaf_op_list(arena, token_string.str, type_key, &oplist, EVAL_EvalMode_Reg);
|
|
}
|
|
else
|
|
{
|
|
eval_errorf(arena, &result.errors, EVAL_ErrorKind_MissingInfo, token_string.str, "Missing location information for \"%S\".", token_string);
|
|
}
|
|
}break;
|
|
case RADDBG_LocationKind_AddrBytecodeStream:
|
|
{
|
|
atom = eval_expr_leaf_bytecode(arena, token_string.str, type_key, loc_bytecode, EVAL_EvalMode_Addr);
|
|
}break;
|
|
case RADDBG_LocationKind_ValBytecodeStream:
|
|
{
|
|
atom = eval_expr_leaf_bytecode(arena, token_string.str, type_key, loc_bytecode, EVAL_EvalMode_Value);
|
|
}break;
|
|
case RADDBG_LocationKind_AddrRegisterPlusU16:
|
|
{
|
|
EVAL_OpList oplist = {0};
|
|
U64 byte_size = bit_size_from_arch(ctx->arch)/8;
|
|
U64 regread_param = RADDBG_EncodeRegReadParam(loc_reg_u16.register_code, byte_size, 0);
|
|
eval_oplist_push_op(arena, &oplist, RADDBG_EvalOp_RegRead, regread_param);
|
|
eval_oplist_push_op(arena, &oplist, RADDBG_EvalOp_ConstU16, loc_reg_u16.offset);
|
|
eval_oplist_push_op(arena, &oplist, RADDBG_EvalOp_Add, 0);
|
|
atom = eval_expr_leaf_op_list(arena, token_string.str, type_key, &oplist, EVAL_EvalMode_Addr);
|
|
}break;
|
|
case RADDBG_LocationKind_AddrAddrRegisterPlusU16:
|
|
{
|
|
EVAL_OpList oplist = {0};
|
|
U64 byte_size = bit_size_from_arch(ctx->arch)/8;
|
|
U64 regread_param = RADDBG_EncodeRegReadParam(loc_reg_u16.register_code, byte_size, 0);
|
|
eval_oplist_push_op(arena, &oplist, RADDBG_EvalOp_RegRead, regread_param);
|
|
eval_oplist_push_op(arena, &oplist, RADDBG_EvalOp_ConstU16, loc_reg_u16.offset);
|
|
eval_oplist_push_op(arena, &oplist, RADDBG_EvalOp_Add, 0);
|
|
eval_oplist_push_op(arena, &oplist, RADDBG_EvalOp_MemRead, bit_size_from_arch(ctx->arch)/8);
|
|
atom = eval_expr_leaf_op_list(arena, token_string.str, type_key, &oplist, EVAL_EvalMode_Addr);
|
|
}break;
|
|
case RADDBG_LocationKind_ValRegister:
|
|
{
|
|
REGS_RegCode regs_reg_code = regs_reg_code_from_arch_raddbg_code(ctx->arch, loc_reg.register_code);
|
|
REGS_Rng reg_rng = regs_reg_code_rng_table_from_architecture(ctx->arch)[regs_reg_code];
|
|
EVAL_OpList oplist = {0};
|
|
U64 byte_size = (U64)reg_rng.byte_size;
|
|
U64 byte_pos = 0;
|
|
U64 regread_param = RADDBG_EncodeRegReadParam(loc_reg.register_code, byte_size, byte_pos);
|
|
eval_oplist_push_op(arena, &oplist, RADDBG_EvalOp_RegRead, regread_param);
|
|
atom = eval_expr_leaf_op_list(arena, token_string.str, type_key, &oplist, EVAL_EvalMode_Value);
|
|
}break;
|
|
}
|
|
|
|
// rjf: implicit local lookup -> attach member access node
|
|
if(atom_implicit_member_name.size != 0)
|
|
{
|
|
EVAL_Expr *member_expr = eval_expr_leaf_member(arena, atom_implicit_member_name.str, atom_implicit_member_name);
|
|
atom = eval_expr(arena, EVAL_ExprKind_MemberAccess, atom_implicit_member_name.str, atom, member_expr, 0);
|
|
}
|
|
}
|
|
|
|
// rjf: error on map failure
|
|
if(mapped_identifier == 0)
|
|
{
|
|
eval_errorf(arena, &result.errors, EVAL_ErrorKind_ResolutionFailure, token_string.str, "Unknown identifier \"%S\".", token_string);
|
|
it += 1;
|
|
}
|
|
}break;
|
|
|
|
//- rjf: numeric => directly extract value
|
|
case EVAL_TokenKind_Numeric:
|
|
{
|
|
U64 dot_pos = str8_find_needle(token_string, 0, str8_lit("."), 0);
|
|
it += 1;
|
|
|
|
// rjf: no . => integral
|
|
if(dot_pos == token_string.size)
|
|
{
|
|
U64 val = 0;
|
|
try_u64_from_str8_c_rules(token_string, &val);
|
|
atom = eval_expr_u64(arena, token_string.str, val);
|
|
break;
|
|
}
|
|
|
|
// rjf: presence of . => double or float
|
|
if(dot_pos < token_string.size)
|
|
{
|
|
F64 val = f64_from_str8(token_string);
|
|
U64 f_pos = str8_find_needle(token_string, 0, str8_lit("f"), StringMatchFlag_CaseInsensitive);
|
|
|
|
// rjf: presence of f after . => f32
|
|
if(f_pos < token_string.size)
|
|
{
|
|
atom = eval_expr_f32(arena, token_string.str, (F32)val);
|
|
}
|
|
|
|
// rjf: no f => f64
|
|
else
|
|
{
|
|
atom = eval_expr_f64(arena, token_string.str, val);
|
|
}
|
|
}
|
|
}break;
|
|
|
|
//- rjf: char => extract char value
|
|
case EVAL_TokenKind_CharLiteral:
|
|
{
|
|
it += 1;
|
|
if(token_string.size > 1 && token_string.str[0] == '\'' && token_string.str[1] != '\'')
|
|
{
|
|
U8 char_val = token_string.str[1];
|
|
atom = eval_expr_u64(arena, token_string.str, char_val);
|
|
}
|
|
else
|
|
{
|
|
eval_errorf(arena, &result.errors, EVAL_ErrorKind_MalformedInput, token_string.str, "Malformed character literal.");
|
|
}
|
|
}break;
|
|
|
|
// rjf: string => invalid
|
|
case EVAL_TokenKind_StringLiteral:
|
|
{
|
|
eval_errorf(arena, &result.errors, EVAL_ErrorKind_MalformedInput, token_string.str, "String literals are not supported.");
|
|
it += 1;
|
|
}break;
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
//- rjf: upgrade atom w/ postfix unaries
|
|
if(atom != &eval_expr_nil) for(;it < it_opl;)
|
|
{
|
|
EVAL_Token token = eval_token_at_it(it, tokens);
|
|
String8 token_string = str8_substr(text, token.range);
|
|
B32 is_postfix_unary = 0;
|
|
|
|
// rjf: dot/arrow operator
|
|
if(token.kind == EVAL_TokenKind_Symbol &&
|
|
(str8_match(token_string, str8_lit("."), 0) ||
|
|
str8_match(token_string, str8_lit("->"), 0)))
|
|
{
|
|
is_postfix_unary = 1;
|
|
|
|
// rjf: advance past operator
|
|
it += 1;
|
|
|
|
// rjf: expect member name
|
|
String8 member_name = {0};
|
|
B32 good_member_name = 0;
|
|
{
|
|
EVAL_Token member_name_maybe = eval_token_at_it(it, tokens);
|
|
String8 member_name_maybe_string = str8_substr(text, member_name_maybe.range);
|
|
if(member_name_maybe.kind != EVAL_TokenKind_Identifier)
|
|
{
|
|
eval_errorf(arena, &result.errors, EVAL_ErrorKind_MalformedInput, token_string.str, "Expected member name after %S.", token_string);
|
|
}
|
|
else
|
|
{
|
|
member_name = member_name_maybe_string;
|
|
good_member_name = 1;
|
|
}
|
|
}
|
|
|
|
// rjf: produce lookup member expr
|
|
if(good_member_name)
|
|
{
|
|
EVAL_Expr *member_expr = eval_expr_leaf_member(arena, member_name.str, member_name);
|
|
atom = eval_expr(arena, EVAL_ExprKind_MemberAccess, token_string.str, atom, member_expr, 0);
|
|
}
|
|
|
|
// rjf: increment past good member names
|
|
if(good_member_name)
|
|
{
|
|
it += 1;
|
|
}
|
|
}
|
|
|
|
// rjf: array index
|
|
if(token.kind == EVAL_TokenKind_Symbol &&
|
|
str8_match(token_string, str8_lit("["), 0))
|
|
{
|
|
is_postfix_unary = 1;
|
|
|
|
// rjf: advance past [
|
|
it += 1;
|
|
|
|
// rjf: parse indexing expression
|
|
EVAL_TokenArray idx_expr_parse_tokens = eval_token_array_make_first_opl(it, it_opl);
|
|
EVAL_ParseResult idx_expr_parse = eval_parse_expr_from_text_tokens__prec(arena, ctx, text, &idx_expr_parse_tokens, eval_g_max_precedence);
|
|
eval_error_list_concat_in_place(&result.errors, &idx_expr_parse.errors);
|
|
it = idx_expr_parse.last_token;
|
|
|
|
// rjf: valid indexing expression => produce index expr
|
|
if(idx_expr_parse.expr != &eval_expr_nil)
|
|
{
|
|
atom = eval_expr(arena, EVAL_ExprKind_ArrayIndex, token_string.str, atom, idx_expr_parse.expr, 0);
|
|
}
|
|
|
|
// rjf: expect ]
|
|
{
|
|
EVAL_Token close_brace_maybe = eval_token_at_it(it, tokens);
|
|
String8 close_brace_maybe_string = str8_substr(text, close_brace_maybe.range);
|
|
if(close_brace_maybe.kind != EVAL_TokenKind_Symbol || !str8_match(close_brace_maybe_string, str8_lit("]"), 0))
|
|
{
|
|
eval_errorf(arena, &result.errors, EVAL_ErrorKind_MalformedInput, token_string.str, "Unclosed [.");
|
|
}
|
|
else
|
|
{
|
|
it += 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
// rjf: quit if this doesn't look like any patterns of postfix unary we know
|
|
if(!is_postfix_unary)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
//- rjf: upgrade atom w/ previously parsed prefix unaries
|
|
if(atom == &eval_expr_nil && first_prefix_unary != 0 && first_prefix_unary->cast_expr != 0)
|
|
{
|
|
atom = first_prefix_unary->cast_expr;
|
|
for(PrefixUnaryNode *prefix_unary = first_prefix_unary->next;
|
|
prefix_unary != 0;
|
|
prefix_unary = prefix_unary->next)
|
|
{
|
|
atom = eval_expr(arena, prefix_unary->kind, prefix_unary->location,
|
|
prefix_unary->cast_expr != &eval_expr_nil ? prefix_unary->cast_expr : atom,
|
|
prefix_unary->cast_expr != &eval_expr_nil ? atom : 0, 0);
|
|
}
|
|
}
|
|
else if(atom == 0 && first_prefix_unary != 0)
|
|
{
|
|
eval_errorf(arena, &result.errors, EVAL_ErrorKind_MalformedInput, last_prefix_unary->location, "Missing expression.");
|
|
}
|
|
else
|
|
{
|
|
for(PrefixUnaryNode *prefix_unary = first_prefix_unary; prefix_unary != 0; prefix_unary = prefix_unary->next)
|
|
{
|
|
atom = eval_expr(arena, prefix_unary->kind, prefix_unary->location,
|
|
prefix_unary->cast_expr != &eval_expr_nil ? prefix_unary->cast_expr : atom,
|
|
prefix_unary->cast_expr != &eval_expr_nil ? atom : 0, 0);
|
|
}
|
|
}
|
|
|
|
//- rjf: parse complex operators
|
|
if(atom != &eval_expr_nil) for(;it < it_opl;)
|
|
{
|
|
EVAL_Token *start_it = it;
|
|
EVAL_Token token = eval_token_at_it(it, tokens);
|
|
String8 token_string = str8_substr(text, token.range);
|
|
|
|
//- rjf: parse binaries
|
|
{
|
|
// rjf: first try to find a matching binary operator
|
|
S64 binary_precedence = 0;
|
|
EVAL_ExprKind binary_kind = 0;
|
|
for(U64 idx = 0; idx < ArrayCount(eval_g_binary_op_table); idx += 1)
|
|
{
|
|
if(str8_match(token_string, eval_g_binary_op_table[idx].string, 0))
|
|
{
|
|
binary_precedence = eval_g_binary_op_table[idx].precedence;
|
|
binary_kind = eval_g_binary_op_table[idx].kind;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// rjf: if we got a valid binary precedence, and it's not to be handled by
|
|
// a caller, then we need to parse the right-hand-side with a tighter
|
|
// precedence
|
|
if(binary_precedence != 0 && binary_precedence <= max_precedence)
|
|
{
|
|
EVAL_TokenArray rhs_expr_parse_tokens = eval_token_array_make_first_opl(it+1, it_opl);
|
|
EVAL_ParseResult rhs_expr_parse = eval_parse_expr_from_text_tokens__prec(arena, ctx, text, &rhs_expr_parse_tokens, binary_precedence-1);
|
|
eval_error_list_concat_in_place(&result.errors, &rhs_expr_parse.errors);
|
|
EVAL_Expr *rhs = rhs_expr_parse.expr;
|
|
it = rhs_expr_parse.last_token;
|
|
if(rhs == &eval_expr_nil)
|
|
{
|
|
eval_errorf(arena, &result.errors, EVAL_ErrorKind_MalformedInput, token_string.str, "Missing right-hand-side of %S.", token_string);
|
|
}
|
|
else
|
|
{
|
|
atom = eval_expr(arena, binary_kind, token_string.str, atom, rhs, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
//- rjf: parse ternaries
|
|
{
|
|
if(token.kind == EVAL_TokenKind_Symbol && str8_match(token_string, str8_lit("?"), 0) && 13 <= max_precedence)
|
|
{
|
|
// rjf: parse middle expression
|
|
EVAL_TokenArray middle_expr_tokens = eval_token_array_make_first_opl(it, it_opl);
|
|
EVAL_ParseResult middle_expr_parse = eval_parse_expr_from_text_tokens__prec(arena, ctx, text, &middle_expr_tokens, eval_g_max_precedence);
|
|
it = middle_expr_parse.last_token;
|
|
EVAL_Expr *middle_expr = middle_expr_parse.expr;
|
|
eval_error_list_concat_in_place(&result.errors, &middle_expr_parse.errors);
|
|
if(middle_expr_parse.expr == &eval_expr_nil)
|
|
{
|
|
eval_errorf(arena, &result.errors, EVAL_ErrorKind_MalformedInput, token_string.str, "Expected expression after ?.");
|
|
}
|
|
|
|
// rjf: expect :
|
|
B32 got_colon = 0;
|
|
EVAL_Token colon_token = zero_struct;
|
|
String8 colon_token_string = {0};
|
|
{
|
|
EVAL_Token colon_token_maybe = eval_token_at_it(it, tokens);
|
|
String8 colon_token_maybe_string = str8_substr(text, colon_token_maybe.range);
|
|
if(colon_token_maybe.kind != EVAL_TokenKind_Symbol || !str8_match(colon_token_maybe_string, str8_lit(":"), 0))
|
|
{
|
|
eval_errorf(arena, &result.errors, EVAL_ErrorKind_MalformedInput, token_string.str, "Expected : after ?.");
|
|
}
|
|
else
|
|
{
|
|
got_colon = 1;
|
|
colon_token = colon_token_maybe;
|
|
colon_token_string = colon_token_maybe_string;
|
|
it += 1;
|
|
}
|
|
}
|
|
|
|
// rjf: parse rhs
|
|
EVAL_TokenArray rhs_expr_parse_tokens = eval_token_array_make_first_opl(it, it_opl);
|
|
EVAL_ParseResult rhs_expr_parse = eval_parse_expr_from_text_tokens__prec(arena, ctx, text, &rhs_expr_parse_tokens, eval_g_max_precedence);
|
|
if(got_colon)
|
|
{
|
|
it = rhs_expr_parse.last_token;
|
|
eval_error_list_concat_in_place(&result.errors, &rhs_expr_parse.errors);
|
|
if(rhs_expr_parse.expr == &eval_expr_nil)
|
|
{
|
|
eval_errorf(arena, &result.errors, EVAL_ErrorKind_MalformedInput, colon_token_string.str, "Expected expression after :.");
|
|
}
|
|
}
|
|
|
|
// rjf: build ternary
|
|
atom = eval_expr(arena, EVAL_ExprKind_Ternary, token_string.str, atom, middle_expr_parse.expr, rhs_expr_parse.expr);
|
|
}
|
|
}
|
|
|
|
// rjf: if we parsed nothing successfully, we're done
|
|
if(it == start_it)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
//- rjf: fill result & return
|
|
result.last_token = it;
|
|
result.expr = atom;
|
|
scratch_end(scratch);
|
|
return result;
|
|
}
|
|
|
|
internal EVAL_ParseResult
|
|
eval_parse_expr_from_text_tokens(Arena *arena, EVAL_ParseCtx *ctx, String8 text, EVAL_TokenArray *tokens)
|
|
{
|
|
EVAL_ParseResult result = eval_parse_expr_from_text_tokens__prec(arena, ctx, text, tokens, eval_g_max_precedence);
|
|
return result;
|
|
}
|