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Overview
| Comment: | Disallow empty triggers. Ticket #3283. This does not present a backwards compatibility problem because prior to this change, an empty trigger would segfault. (CVS 5550) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
571adab9d2215fac6ed375257a070b8f |
| User & Date: | drh 2008-08-11 14:26:35 |
Context
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2008-08-11
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| 17:27 | Added SQLITE_EXPERIMENTAL and SQLITE_DEPRECATED tags to APIs to take advantage of compiler warnings (with the necessary function attributes.) Ticket #3142. (CVS 5551) check-in: 5f4b547aba user: shane tags: trunk | |
| 14:26 | Disallow empty triggers. Ticket #3283. This does not present a backwards compatibility problem because prior to this change, an empty trigger would segfault. (CVS 5550) check-in: 571adab9d2 user: drh tags: trunk | |
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2008-08-08
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| 18:06 | Move a variable initialization earlier to work around MS compiler complaints. (CVS 5549) check-in: 02232e7144 user: drh tags: trunk | |
Changes
Changes to src/parse.y.
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** ************************************************************************* ** This file contains SQLite's grammar for SQL. Process this file ** using the lemon parser generator to generate C code that runs ** the parser. Lemon will also generate a header file containing ** numeric codes for all of the tokens. ** ** @(#) $Id: parse.y,v 1.250 2008/08/08 15:06:22 drh Exp $ */ // All token codes are small integers with #defines that begin with "TK_" %token_prefix TK_ // The type of the data attached to each token is Token. This is also the // default type for non-terminals. ................................................................................ %destructor when_clause {sqlite3ExprDelete(pParse->db, $$);} when_clause(A) ::= . { A = 0; } when_clause(A) ::= WHEN expr(X). { A = X; } %type trigger_cmd_list {TriggerStep*} %destructor trigger_cmd_list {sqlite3DeleteTriggerStep(pParse->db, $$);} trigger_cmd_list(A) ::= trigger_cmd_list(Y) trigger_cmd(X) SEMI. { if( Y ){ Y->pLast->pNext = X; }else{ Y = X; } Y->pLast = X; A = Y; } trigger_cmd_list(A) ::= . { A = 0; } %type trigger_cmd {TriggerStep*} %destructor trigger_cmd {sqlite3DeleteTriggerStep(pParse->db, $$);} // UPDATE trigger_cmd(A) ::= UPDATE orconf(R) nm(X) SET setlist(Y) where_opt(Z). { A = sqlite3TriggerUpdateStep(pParse->db, &X, Y, Z, R); } |
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** ************************************************************************* ** This file contains SQLite's grammar for SQL. Process this file ** using the lemon parser generator to generate C code that runs ** the parser. Lemon will also generate a header file containing ** numeric codes for all of the tokens. ** ** @(#) $Id: parse.y,v 1.251 2008/08/11 14:26:35 drh Exp $ */ // All token codes are small integers with #defines that begin with "TK_" %token_prefix TK_ // The type of the data attached to each token is Token. This is also the // default type for non-terminals. ................................................................................ %destructor when_clause {sqlite3ExprDelete(pParse->db, $$);} when_clause(A) ::= . { A = 0; } when_clause(A) ::= WHEN expr(X). { A = X; } %type trigger_cmd_list {TriggerStep*} %destructor trigger_cmd_list {sqlite3DeleteTriggerStep(pParse->db, $$);} trigger_cmd_list(A) ::= trigger_cmd_list(Y) trigger_cmd(X) SEMI. { /* if( Y ){ Y->pLast->pNext = X; }else{ Y = X; } */ assert( Y!=0 ); Y->pLast->pNext = X; Y->pLast = X; A = Y; } trigger_cmd_list(A) ::= trigger_cmd(X) SEMI. { /* if( X ) */ assert( X!=0 ); X->pLast = X; A = X; } %type trigger_cmd {TriggerStep*} %destructor trigger_cmd {sqlite3DeleteTriggerStep(pParse->db, $$);} // UPDATE trigger_cmd(A) ::= UPDATE orconf(R) nm(X) SET setlist(Y) where_opt(Z). { A = sqlite3TriggerUpdateStep(pParse->db, &X, Y, Z, R); } |