
<<SMLDriver.mesa>>
<<Copyright © 1985 by Xerox Corporation.  All rights reserved.>>
<<last edit by Satterthwaite, May 12, 1986 11:58:01 am PDT>>

DIRECTORY
BasicTime: TYPE USING [GMT],
IO: TYPE USING [STREAM],
Rope: TYPE USING [ROPE],
SMProj: TYPE USING [Proj],
SMTree: TYPE Tree USING [Link],
SMTreeOps: TYPE TreeOps USING [TM];

SMLDriver: CEDAR DEFINITIONS~{
OPEN Tree~~SMTree, TreeOps~~SMTreeOps;

<<loader state>>

LS: TYPE~REF LoaderState;
LoaderState: TYPE;

<<loading>>

Create: PROC[z: ZONE, tm: TreeOps.TM, out: IO.STREAM] RETURNS[LS];

Loaded: PROC[ls: LS] RETURNS[BOOL];

LoadAndBind: PROC[ls: LS, root: Tree.Link, wDir: Rope.ROPE, replace: BOOL]
RETURNS[errors: BOOL];

Started: PROC[ls: LS] RETURNS[BOOL];

StartAll: PROC[ls: LS, root: Tree.Link];

Unload: PROC[ls: LS, root: Tree.Link, unloadTheBcd: BOOL];


LoadInfo: TYPE~REF LoadInfoRecord;
LoadInfoRecord: TYPE;

LoadedModule: PROC[info: LoadInfo] RETURNS[BOOL];


<<binding>>

Bind: PROC[
name: Rope.ROPE, stamp: BasicTime.GMT, root: Tree.Link,
z: ZONE, tm: TreeOps.TM, out: IO.STREAM, wDir: Rope.ROPE]
RETURNS[errors: BOOL];

BindInfo: TYPE~REF BindInfoRecord;
BindInfoRecord: TYPE;


<<data structures>>

<<loaded module state (compiler/loader feedback for module replacement)>>

<<LoadMod>>
<<stored in Ext of Apply nodes>>
<<where first son is an apply, describes bcd files that have been loaded>>
<<there is one othese per parse tree node>>
LoadMod: TYPE~REF LoadModRecord;
LoadModRecord: TYPE~RECORD[
proj: SMProj.Proj_NIL,
bindInfo: BindInfo_NIL,
loadInfo: LoadInfo_NIL,
mustReplace: BOOL_FALSE];    -- => this module must be replaced in the load state

}.

