378 lines
8.1 KiB
C++
378 lines
8.1 KiB
C++
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// Copyright (c) 1999 Microsoft Corporation. All rights reserved.
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//
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// Helper functions for logging script parsing. Useful for debugging, but never turned on in released builds.
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//
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#error This file should never be used in released builds. // <20><>
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#include "stdinc.h"
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#include "englog.h"
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void LogToken(Lexer &l)
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{
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char msg[500] = "";
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char type[500] = "";
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char more[500] = "";
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switch (l)
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{
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case TOKEN_eof:
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if (l.error_num())
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{
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sprintf(msg, "%d(%d): error #%d - %s\n", l.line(), l.column(), l.error_num(), l.error_descr());
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OutputDebugString(msg);
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return;
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}
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strcpy(type, "end-of-file");
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break;
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case TOKEN_sub:
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strcpy(type, "sub");
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break;
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case TOKEN_dim:
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strcpy(type, "dim");
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break;
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case TOKEN_if:
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strcpy(type, "if");
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break;
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case TOKEN_then:
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strcpy(type, "then");
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break;
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case TOKEN_end:
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strcpy(type, "end");
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break;
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case TOKEN_elseif:
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strcpy(type, "elseif");
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break;
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case TOKEN_else:
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strcpy(type, "else");
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break;
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case TOKEN_set:
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strcpy(type, "set");
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break;
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case TOKEN_call:
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strcpy(type, "call");
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break;
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case TOKEN_lparen:
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strcpy(type, "(");
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break;
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case TOKEN_rparen:
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strcpy(type, ")");
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break;
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case TOKEN_comma:
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strcpy(type, ",");
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break;
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case TOKEN_op_minus:
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strcpy(type, "-");
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break;
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case TOKEN_op_not:
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strcpy(type, "not");
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break;
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case TOKEN_op_pow:
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strcpy(type, "^");
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break;
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case TOKEN_op_mult:
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strcpy(type, "*");
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break;
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case TOKEN_op_div:
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strcpy(type, "\\");
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break;
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case TOKEN_op_mod:
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strcpy(type, "mod");
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break;
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case TOKEN_op_plus:
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strcpy(type, "+");
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break;
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case TOKEN_op_lt:
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strcpy(type, "<");
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break;
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case TOKEN_op_leq:
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strcpy(type, "<=");
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break;
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case TOKEN_op_gt:
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strcpy(type, ">");
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break;
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case TOKEN_op_geq:
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strcpy(type, ">=");
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break;
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case TOKEN_op_eq:
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strcpy(type, "=");
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break;
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case TOKEN_op_neq:
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strcpy(type, "<>");
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break;
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case TOKEN_is:
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strcpy(type, "is");
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break;
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case TOKEN_and:
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strcpy(type, "and");
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break;
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case TOKEN_or:
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strcpy(type, "or");
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break;
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case TOKEN_linebreak:
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strcpy(type, "linebreak");
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break;
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case TOKEN_identifier:
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strcpy(type, "identifier");
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strcpy(more, l.identifier_name());
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break;
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case TOKEN_identifierdot:
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strcpy(type, "identifier.");
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strcpy(more, l.identifier_name());
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break;
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case TOKEN_stringliteral:
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strcpy(type, "string-literal");
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strcpy(more, l.stringliteral_text());
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break;
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case TOKEN_numericliteral:
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strcpy(type, "numeric-literal");
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_itoa(l.numericliteral_val(), more, 10);
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break;
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default:
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strcpy(type, "invalid token type!");
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break;
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}
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static const char format[] = "%d(%d): %s\n";
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static const char formatmore[] = "%d(%d): %s(%s)\n";
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sprintf(msg, *more ? formatmore : format, l.line(), l.column(), type, more);
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OutputDebugString(msg);
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}
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SmartRef::AString GetVarrefName(Script &script, VariableReferences::index ivarref)
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{
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VariableReference r = script.varrefs[ivarref];
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const char *pszKind;
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if (r.k == VariableReference::_global)
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pszKind = "G";
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else if (r.k == VariableReference::_local)
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pszKind = "L";
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bool fFirst = true;
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char namebuf[500] = "";
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for (ReferenceNames::index irname = r.irname; script.rnames[irname].istrIdentifier != -1; ++irname)
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{
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if (fFirst)
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fFirst = false;
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else
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strcat(namebuf, ".");
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strcat(namebuf, script.strings[script.rnames[irname].istrIdentifier]);
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}
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Variables::index islot = r.ivar;
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// check if it's a dispatch item
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if (r.k == VariableReference::_global)
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{
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DISPID dispid = script.globals[islot].dispid;
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if (dispid != DISPID_UNKNOWN)
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{
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pszKind = "D";
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islot = dispid; // show the dispid instead of the slot
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}
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}
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char buf[500];
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sprintf(buf, "{%s%d}%s", pszKind, islot, namebuf);
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return buf;
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}
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SmartRef::AString GetValueName(Script &script, Values::index ival)
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{
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const Value &v = script.vals[ival];
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char buf[500];
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if (v.k == Value::_numvalue)
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{
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sprintf(buf, "%d", v.inumvalue);
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}
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else if (v.k == Value::_strvalue)
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{
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sprintf(buf, "\"%s\"", script.strings[v.istrvalue]);
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}
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else
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{
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assert(v.k == Value::_varref);
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return GetVarrefName(script, v.ivarref);
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}
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return buf;
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}
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void Indent(int iNesting)
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{
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for (int i = 0; i < iNesting; ++i)
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OutputDebugString(" ");
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}
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// forward declaration due to mutual recursion with LogExpression
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void LogCall(Script &script, Calls::index icall);
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ExprBlocks::index LogExpression(Script &script, ExprBlocks::index _iexpr)
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{
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char msg[500] = "";
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bool fFirst = true;
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for (ExprBlocks::index iexpr = _iexpr; script.exprs[iexpr]; ++iexpr)
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{
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ExprBlock expr = script.exprs[iexpr];
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if (fFirst)
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fFirst = false;
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else
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OutputDebugString("|");
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if (expr.k == ExprBlock::_op)
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{
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bool fUnary = false;
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const char *pszOp = "";
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switch (expr.op)
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{
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case TOKEN_sub: fUnary = true; pszOp = "-"; break;
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case TOKEN_op_not: fUnary = true; pszOp = "not"; break;
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case TOKEN_op_minus: pszOp = "-"; break;
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case TOKEN_op_pow: pszOp = "^"; break;
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case TOKEN_op_mult: pszOp = "*"; break;
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case TOKEN_op_div: pszOp = "\\"; break;
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case TOKEN_op_mod: pszOp = "mod"; break;
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case TOKEN_op_plus: pszOp = "+"; break;
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case TOKEN_op_lt: pszOp = "<"; break;
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case TOKEN_op_leq: pszOp = "<="; break;
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case TOKEN_op_gt: pszOp = ">"; break;
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case TOKEN_op_geq: pszOp = ">="; break;
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case TOKEN_op_eq: pszOp = "="; break;
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case TOKEN_op_neq: pszOp = "<>"; break;
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case TOKEN_is: pszOp = "is"; break;
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case TOKEN_and: pszOp = "and"; break;
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case TOKEN_or: pszOp = "or"; break;
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default: assert(false); break;
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}
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if (fUnary)
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sprintf(msg, "%su", pszOp);
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else
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sprintf(msg, "%sb", pszOp);
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OutputDebugString(msg);
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}
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else if (expr.k == ExprBlock::_val)
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{
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SmartRef::AString astrVal = GetValueName(script, expr.ival);
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OutputDebugString(astrVal);
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}
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else
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{
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assert(expr.k == ExprBlock::_call);
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LogCall(script, expr.icall);
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}
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}
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return iexpr;
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}
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void LogCall(Script &script, Calls::index icall)
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{
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Call c = script.calls[icall];
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if (c.k == Call::_global)
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{
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OutputDebugString(script.strings[c.istrname]);
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}
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else
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{
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assert(c.k == Call::_dereferenced);
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SmartRef::AString astrCall = GetVarrefName(script, c.ivarref);
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OutputDebugString(astrCall);
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}
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OutputDebugString("(");
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bool fFirst = true;
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for (ExprBlocks::index iexpr = c.iexprParams; script.exprs[iexpr]; ++iexpr)
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{
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if (fFirst)
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fFirst = false;
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else
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OutputDebugString(", ");
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iexpr = LogExpression(script, iexpr);
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}
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OutputDebugString(")");
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}
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void LogStatements(Script &script, Statements::index istmt, int iNesting)
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{
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char msg[500] = "";
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for (; script.statements[istmt].k; ++istmt)
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{
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Statement s = script.statements[istmt];
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if (s.k == Statement::_asgn)
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{
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Assignment a = script.asgns[s.iasgn];
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SmartRef::AString astrLHS = GetVarrefName(script, a.ivarrefLHS);
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sprintf(msg, "%s = ", astrLHS);
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Indent(iNesting);
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OutputDebugString(msg);
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LogExpression(script, a.iexprRHS);
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OutputDebugString("\n");
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}
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else if (s.k == Statement::_if)
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{
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bool fFirst = true;
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for (IfBlocks::index iif = s.iif; script.ifs[iif].k != IfBlock::_end; ++iif)
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{
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Indent(iNesting);
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IfBlock ib = script.ifs[iif];
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if (fFirst)
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{
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assert(ib.k == IfBlock::_cond);
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OutputDebugString("if ");
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fFirst = false;
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}
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else
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{
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if (ib.k == IfBlock::_cond)
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OutputDebugString("elseif ");
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else if (ib.k == IfBlock::_else)
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OutputDebugString("else");
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}
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if (ib.k == IfBlock::_cond)
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{
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LogExpression(script, ib.iexprCondition);
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}
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OutputDebugString("\n");
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LogStatements(script, ib.istmtBlock, iNesting + 3);
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}
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istmt = s.istmtIfTail - 1; // -1 to offset the loop, which will increment it back
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}
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else if (s.k == Statement::_call)
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{
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Indent(iNesting);
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LogCall(script, s.icall);
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OutputDebugString("\n");
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}
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else
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{
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assert(false);
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Indent(iNesting);
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OutputDebugString(" Unknown statement type!\n");
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}
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}
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}
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void LogRoutine(Script &script, Routines::index irtn)
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{
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Routine r = script.routines[irtn];
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const char *pszName = script.strings[r.istrIdentifier];
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int cLocals = r.ivarNextLocal;
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char msg[500] = "";
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sprintf(msg, "@ Sub %s (%d locals)\n", pszName, cLocals);
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OutputDebugString(msg);
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|||
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|
LogStatements(script, r.istmtBody, 3);
|
|||
|
|
}
|