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Expose sqlite3_column_value() to WASM and add sqlite3_column_js().

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FossilOrigin-Name: 7783aa4af1331190fd1f42a71bb724041e2e82b51745f9740926e4ead83a97ed
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stephan
2022-12-10 15:13:29 +00:00
parent 5c99d91e53
commit 9cb6ff2792
4 changed files with 29 additions and 8 deletions
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20
ext/wasm/api/sqlite3-api-prologue.js
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@ -930,6 +930,7 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
["sqlite3_column_name","string", "sqlite3_stmt*", "int"],
["sqlite3_column_text","string", "sqlite3_stmt*", "int"],
["sqlite3_column_type","int", "sqlite3_stmt*", "int"],
["sqlite3_column_value","sqlite3_value*", "sqlite3_stmt*", "int"],
["sqlite3_compileoption_get", "string", "int"],
["sqlite3_compileoption_used", "int", "string"],
["sqlite3_complete", "int", "string:flexible"],
@ -1860,6 +1861,25 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
}
};
/**
Returns the result sqlite3_column_value(pStmt,iCol) passed to
sqlite3_value_to_js(). The 3rd argument of this function is
ignored by this function except to pass it on as the second
argument of sqlite3_value_to_js(). If the sqlite3_column_value()
returns NULL (e.g. because the column index is out of range),
this function returns `undefined`, regardless of the 3rd
argument. 3rd argument is falsy and conversion fails, `undefined`
will be returned.
Note that sqlite3_column_value() returns an "unprotected" value
object, but in a single-threaded environment (like this one)
there is no distinction between protected and unprotected values.
*/
capi.sqlite3_column_js = function(pStmt, iCol, throwIfCannotConvert=true){
const v = capi.sqlite3_column_value(pStmt, iCol);
return (0===v) ? undefined : capi.sqlite3_value_to_js(v, throwIfCannotConvert);
};
/* The remainder of the API will be set up in later steps. */
const sqlite3 = {
WasmAllocError: WasmAllocError,