Update python parser to the latest version from uctags
This version contains fixes related to parsing function parameters.
This commit is contained in:
Jiří Techet
parent
5cdfe35cf2
commit
41b40120ea
@ -23,6 +23,7 @@
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#include "debug.h"
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#include "xtag.h"
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#include "objpool.h"
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#include "ptrarray.h"
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#define isIdentifierChar(c) \
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(isalnum (c) || (c) == '_' || (c) >= 0x80)
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@ -935,41 +936,42 @@ static vString *parseReturnTypeAnnotation (tokenInfo *const token)
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return NULL;
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}
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static bool parseClassOrDef (tokenInfo *const token,
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const vString *const decorators,
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pythonKind kind, bool isCDef)
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{
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vString *arglist = NULL;
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tokenInfo *name = NULL;
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tokenInfo *parameterTokens[16] = { NULL };
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vString *parameterTypes [ARRAY_SIZE(parameterTokens)] = { NULL };
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unsigned int parameterCount = 0;
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NestingLevel *lv;
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int corkIndex;
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struct typedParam {
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tokenInfo *token;
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vString *type;
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};
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if (isCDef)
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static struct typedParam *makeTypedParam (tokenInfo *token, vString *type)
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{
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if (! readCDefName (token, &kind))
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return false;
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}
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else
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{
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readToken (token);
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if (token->type != TOKEN_IDENTIFIER)
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return false;
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struct typedParam *p = xMalloc (1, struct typedParam);
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p->token = token;
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p->type = type;
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return p;
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}
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name = newToken ();
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copyToken (name, token);
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static struct typedParam *makeTypedParamWithCopy (const tokenInfo *token, const vString *type)
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{
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tokenInfo *token_copied = newToken ();
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copyToken (token_copied, token);
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readToken (token);
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/* collect parameters or inheritance */
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if (token->type == '(')
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vString *type_copied = type? vStringNewCopy (type): NULL;
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return makeTypedParam (token_copied, type_copied);
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}
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static void deleteTypedParam (struct typedParam *p)
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{
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deleteToken (p->token);
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vStringDelete (p->type); /* NULL is acceptable. */
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eFree (p);
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}
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static void parseArglist (tokenInfo *const token, const int kind,
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vString *const arglist, ptrArray *const parameters)
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{
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int prevTokenType = token->type;
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int depth = 1;
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arglist = vStringNew ();
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if (kind != K_CLASS)
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reprCat (arglist, token);
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@ -998,19 +1000,171 @@ static bool parseClassOrDef (tokenInfo *const token,
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else if (kind != K_CLASS && depth == 1 &&
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token->type == TOKEN_IDENTIFIER &&
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(prevTokenType == '(' || prevTokenType == ',') &&
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parameterCount < ARRAY_SIZE (parameterTokens) &&
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PythonKinds[K_PARAMETER].enabled)
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{
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tokenInfo *parameterName = newToken ();
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tokenInfo *parameterName;
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vString *parameterType;
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struct typedParam *parameter;
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parameterName = newToken ();
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copyToken (parameterName, token);
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parameterTokens[parameterCount] = parameterName;
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parameterTypes [parameterCount++] = parseParamTypeAnnotation (token, arglist);
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parameterType = parseParamTypeAnnotation (token, arglist);
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parameter = makeTypedParam (parameterName, parameterType);
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ptrArrayAdd (parameters, parameter);
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}
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}
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while (token->type != TOKEN_EOF && depth > 0);
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}
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static void parseCArglist (tokenInfo *const token, const int kind,
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vString *const arglist, ptrArray *const parameters)
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{
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int depth = 1;
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tokenInfo *pname = newToken ();
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vString *ptype = vStringNew ();
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vStringCat (arglist, token->string); /* '(' */
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while (true)
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{
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readToken (token);
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if (token->type == TOKEN_EOF)
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{
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/* Unexpected input. */
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vStringClear (arglist);
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ptrArrayClear (parameters);
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break;
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}
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if (depth == 1 && (token->type == ',' || token->type == ')'))
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{
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if (pname->type == TOKEN_IDENTIFIER)
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{
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struct typedParam *p;
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/*
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* Clean up the type string.
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* The type string includes the parameter name at the end.
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* 1. Trim the parameter name at the end.
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* 2. Then, trim the white space at the end of the type string.
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* 3. If the type string is not empty,
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* 3.a append (the type stirng + ' ' + the parameter name) to arglist.
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* 3.b else just append the parameter name to arglist.
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*
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* FIXME:
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* This doesn't work well with an array and a function pointer.
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*
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* f(..., int seq [dim], ...)
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* in this case, dim is extacted as a parameter.
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*
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* f(..., int (*fn)(int), ...)
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* in this case , int is extacted as a parameter.
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*/
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Assert (vStringLength (ptype) >= vStringLength (pname->string));
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size_t ptype_len = vStringLength (ptype) - vStringLength (pname->string);
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vStringTruncate (ptype, ptype_len);
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if (vStringLength (ptype) > 0)
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{
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vStringStripTrailing (ptype);
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if (vStringLength (ptype) > 0)
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{
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vStringCat (arglist, ptype);
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vStringPut (arglist, ' ');
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}
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}
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vStringCat (arglist, pname->string);
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p = makeTypedParamWithCopy (pname, vStringIsEmpty(ptype)? NULL: ptype);
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ptrArrayAdd (parameters, p);
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}
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if (token->type == ')')
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{
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vStringPut (arglist, ')');
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break;
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}
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vStringCatS (arglist, ", ");
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vStringClear (ptype);
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pname->type = TOKEN_UNDEFINED;
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continue;
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}
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if (token->type == '(' ||
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token->type == '[' ||
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token->type == '{')
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{
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vStringPut (ptype, token->type);
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depth ++;
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continue;
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}
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if (token->type == ')' ||
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token->type == ']' ||
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token->type == '}')
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{
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vStringPut (ptype, token->type);
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depth --;
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continue;
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}
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if (token->type == TOKEN_IDENTIFIER || token->type == TOKEN_KEYWORD)
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{
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if (vStringLength (ptype) > 0
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&& (isalnum ((unsigned char)vStringLast (ptype))
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|| vStringLast (ptype) == ','))
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vStringPut (ptype, ' ');
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vStringCat (ptype, token->string);
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if (!isdigit ((unsigned char)vStringLast (token->string)))
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copyToken (pname, token);
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continue;
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}
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vStringCat (ptype, token->string);
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}
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vStringDelete (ptype);
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deleteToken (pname);
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}
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static bool parseClassOrDef (tokenInfo *const token,
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const vString *const decorators,
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pythonKind kind, bool isCDef)
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{
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vString *arglist = NULL;
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tokenInfo *name = NULL;
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ptrArray *parameters = NULL;
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NestingLevel *lv;
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int corkIndex;
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if (isCDef)
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{
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if (! readCDefName (token, &kind))
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return false;
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}
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else
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{
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readToken (token);
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if (token->type != TOKEN_IDENTIFIER)
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return false;
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}
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name = newToken ();
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copyToken (name, token);
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readToken (token);
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/* collect parameters or inheritance */
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if (token->type == '(')
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{
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arglist = vStringNew ();
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parameters = ptrArrayNew ((ptrArrayDeleteFunc)deleteTypedParam);
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if (isCDef && kind != K_CLASS)
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parseCArglist (token, kind, arglist, parameters);
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else
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parseArglist (token, kind, arglist, parameters);
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}
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if (kind == K_CLASS)
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corkIndex = makeClassTag (name, arglist, decorators);
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else
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@ -1022,24 +1176,24 @@ static bool parseClassOrDef (tokenInfo *const token,
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deleteToken (name);
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vStringDelete (arglist);
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if (parameterCount > 0)
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if (parameters && !ptrArrayIsEmpty (parameters))
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{
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unsigned int i;
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for (i = 0; i < parameterCount; i++)
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for (i = 0; i < ptrArrayCount (parameters); i++)
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{
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int paramCorkIndex = makeSimplePythonTag (parameterTokens[i], K_PARAMETER);
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deleteToken (parameterTokens[i]);
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struct typedParam *parameter = ptrArrayItem (parameters, i);
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int paramCorkIndex = makeSimplePythonTag (parameter->token, K_PARAMETER);
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tagEntryInfo *e = getEntryInCorkQueue (paramCorkIndex);
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if (e && parameterTypes[i])
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if (e && parameter->type)
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{
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e->extensionFields.typeRef [0] = eStrdup ("typename");
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e->extensionFields.typeRef [1] = vStringDeleteUnwrap (parameterTypes[i]);
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parameterTypes[i] = NULL;
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}
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vStringDelete (parameterTypes[i]); /* NULL is acceptable. */
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e->extensionFields.typeRef [1] = vStringDeleteUnwrap (parameter->type);
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parameter->type = NULL;
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}
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}
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}
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ptrArrayDelete (parameters); /* NULL is acceptable. */
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tagEntryInfo *e;
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vString *t;
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