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79 lines
1.5 KiB
C
79 lines
1.5 KiB
C
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/* Copyright (c) 2013-2014 Jeffrey Pfau
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef PARSER_H
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#define PARSER_H
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#include <mgba-util/common.h>
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#include <mgba-util/vector.h>
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CXX_GUARD_START
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struct Token;
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DECLARE_VECTOR(LexVector, struct Token);
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enum Operation {
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OP_ASSIGN,
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OP_ADD,
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OP_SUBTRACT,
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OP_MULTIPLY,
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OP_DIVIDE,
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OP_MODULO,
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OP_AND,
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OP_OR,
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OP_XOR,
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OP_LESS,
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OP_GREATER,
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OP_EQUAL,
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OP_NOT_EQUAL,
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OP_LOGICAL_AND,
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OP_LOGICAL_OR,
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OP_LE,
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OP_GE,
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OP_NEGATE,
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OP_FLIP,
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OP_NOT,
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OP_SHIFT_L,
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OP_SHIFT_R,
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OP_DEREFERENCE,
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};
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struct Token {
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enum TokenType {
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TOKEN_ERROR_TYPE,
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TOKEN_UINT_TYPE,
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TOKEN_IDENTIFIER_TYPE,
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TOKEN_OPERATOR_TYPE,
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TOKEN_OPEN_PAREN_TYPE,
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TOKEN_CLOSE_PAREN_TYPE,
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TOKEN_SEGMENT_TYPE,
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} type;
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union {
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uint32_t uintValue;
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char* identifierValue;
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enum Operation operatorValue;
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};
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};
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struct ParseTree {
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struct Token token;
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struct ParseTree* lhs;
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struct ParseTree* rhs;
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};
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size_t lexExpression(struct LexVector* lv, const char* string, size_t length, const char* eol);
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void parseLexedExpression(struct ParseTree* tree, struct LexVector* lv);
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void lexFree(struct LexVector* lv);
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void parseFree(struct ParseTree* tree);
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struct mDebugger;
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bool mDebuggerEvaluateParseTree(struct mDebugger* debugger, struct ParseTree* tree, int32_t* value, int* segment);
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CXX_GUARD_END
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#endif
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