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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
/**
* Ast reducer
* @module reducers/ast
*/
import { makeBreakpointId } from "../utils/breakpoint/index";
export function initialASTState() {
return {
// We are using mutable objects as we never return the dictionary as-is from the selectors
// but only their values.
// Note that all these dictionaries are storing objects as values
// which all will have a threadActorId attribute.
// We have two maps, a first one for original sources.
// This is keyed by source id.
mutableOriginalSourcesSymbols: {},
// And another one, for generated sources.
// This is keyed by source actor id.
mutableSourceActorSymbols: {},
mutableInScopeLines: {},
};
}
function update(state = initialASTState(), action) {
switch (action.type) {
case "SET_SYMBOLS": {
const { location } = action;
if (action.status === "start") {
return state;
}
const entry = {
value: action.value,
threadActorId: location.sourceActor?.thread,
};
if (location.source.isOriginal) {
state.mutableOriginalSourcesSymbols[location.source.id] = entry;
} else {
if (!location.sourceActor) {
throw new Error(
"Expects a location with a source actor when adding symbols for non-original sources"
);
}
state.mutableSourceActorSymbols[location.sourceActor.id] = entry;
}
return {
...state,
};
}
case "IN_SCOPE_LINES": {
state.mutableInScopeLines[makeBreakpointId(action.location)] = {
lines: action.lines,
threadActorId: action.location.sourceActor?.thread,
};
return {
...state,
};
}
case "RESUME": {
return { ...state, mutableInScopeLines: {} };
}
case "REMOVE_THREAD": {
function clearDict(dict, threadId) {
for (const key in dict) {
if (dict[key].threadActorId == threadId) {
delete dict[key];
}
}
}
clearDict(state.mutableSourceActorSymbols, action.threadActorID);
clearDict(state.mutableOriginalSourcesSymbols, action.threadActorID);
clearDict(state.mutableInScopeLines, action.threadActorID);
return { ...state };
}
default: {
return state;
}
}
}
export default update;
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