mirror of
https://github.com/Ed94/raddebugger.git
synced 2026-06-13 07:32:23 -07:00
Ryan Fleury
110 lines
3.2 KiB
C
110 lines
3.2 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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#ifndef EVAL_PARSER_H
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#define EVAL_PARSER_H
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////////////////////////////////
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//~ rjf: Token Types
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typedef enum EVAL_TokenKind
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{
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EVAL_TokenKind_Null,
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EVAL_TokenKind_Identifier,
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EVAL_TokenKind_Numeric,
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EVAL_TokenKind_StringLiteral,
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EVAL_TokenKind_CharLiteral,
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EVAL_TokenKind_Symbol,
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EVAL_TokenKind_COUNT
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}
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EVAL_TokenKind;
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typedef struct EVAL_Token EVAL_Token;
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struct EVAL_Token
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{
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EVAL_TokenKind kind;
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Rng1U64 range;
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};
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typedef struct EVAL_TokenChunkNode EVAL_TokenChunkNode;
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struct EVAL_TokenChunkNode
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{
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EVAL_TokenChunkNode *next;
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EVAL_Token *v;
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U64 count;
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U64 cap;
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};
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typedef struct EVAL_TokenChunkList EVAL_TokenChunkList;
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struct EVAL_TokenChunkList
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{
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EVAL_TokenChunkNode *first;
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EVAL_TokenChunkNode *last;
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U64 node_count;
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U64 total_count;
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};
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typedef struct EVAL_TokenArray EVAL_TokenArray;
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struct EVAL_TokenArray
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{
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EVAL_Token *v;
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U64 count;
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};
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////////////////////////////////
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//~ rjf: Parser Types
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typedef struct EVAL_ParseResult EVAL_ParseResult;
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struct EVAL_ParseResult
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{
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EVAL_Token *last_token;
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EVAL_Expr *expr;
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EVAL_ErrorList errors;
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};
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typedef struct EVAL_ParseCtx EVAL_ParseCtx;
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struct EVAL_ParseCtx
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{
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Architecture arch;
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U64 ip_voff;
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RADDBGI_Parsed *rdbg;
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TG_Graph *type_graph;
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EVAL_String2NumMap *regs_map;
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EVAL_String2NumMap *reg_alias_map;
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EVAL_String2NumMap *locals_map;
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EVAL_String2NumMap *member_map;
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};
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////////////////////////////////
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//~ rjf: Globals
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read_only global EVAL_String2NumMap eval_string2num_map_nil = {0};
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read_only global EVAL_String2ExprMap eval_string2expr_map_nil = {0};
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global read_only EVAL_ParseResult eval_parse_result_nil = {0, &eval_expr_nil};
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////////////////////////////////
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//~ rjf: Debug-Info-Driven Map Building Fast Paths
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internal EVAL_String2NumMap *eval_push_locals_map_from_raddbgi_voff(Arena *arena, RADDBGI_Parsed *rdbg, U64 voff);
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internal EVAL_String2NumMap *eval_push_member_map_from_raddbgi_voff(Arena *arena, RADDBGI_Parsed *rdbg, U64 voff);
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////////////////////////////////
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//~ rjf: Tokenization Functions
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#define eval_token_at_it(it, arr) (((it) < (arr)->v+(arr)->count) ? (*(it)) : eval_token_zero())
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internal EVAL_Token eval_token_zero(void);
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internal void eval_token_chunk_list_push(Arena *arena, EVAL_TokenChunkList *list, U64 chunk_size, EVAL_Token *token);
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internal EVAL_TokenArray eval_token_array_from_chunk_list(Arena *arena, EVAL_TokenChunkList *list);
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internal EVAL_TokenArray eval_token_array_from_text(Arena *arena, String8 text);
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internal EVAL_TokenArray eval_token_array_make_first_opl(EVAL_Token *first, EVAL_Token *opl);
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////////////////////////////////
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//~ rjf: Parser Functions
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internal TG_Key eval_leaf_type_from_name(RADDBGI_Parsed *rdbg, String8 name);
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internal EVAL_ParseResult eval_parse_type_from_text_tokens(Arena *arena, EVAL_ParseCtx *ctx, String8 text, EVAL_TokenArray *tokens);
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internal EVAL_ParseResult eval_parse_expr_from_text_tokens__prec(Arena *arena, EVAL_ParseCtx *ctx, String8 text, EVAL_TokenArray *tokens, S64 max_precedence);
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internal EVAL_ParseResult eval_parse_expr_from_text_tokens(Arena *arena, EVAL_ParseCtx *ctx, String8 text, EVAL_TokenArray *tokens);
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#endif // EVAL_PARSER_H
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