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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/>. */
import {
getSelectedFrameId,
getSettledSourceTextContent,
isMapScopesEnabled,
getSelectedFrame,
getSelectedGeneratedScope,
getSelectedOriginalScope,
getThreadContext,
getFirstSourceActorForGeneratedSource,
} from "../../selectors";
import {
loadOriginalSourceText,
loadGeneratedSourceText,
} from "../sources/loadSourceText";
import { PROMISE } from "../utils/middleware/promise";
import assert from "../../utils/assert";
import { log } from "../../utils/log";
import { isGenerated } from "../../utils/source";
import { buildMappedScopes } from "../../utils/pause/mapScopes";
import { isFulfilled } from "../../utils/async-value";
import { getMappedLocation } from "../../utils/source-maps";
const expressionRegex = /\bfp\(\)/g;
export async function buildOriginalScopes(
frame,
client,
cx,
frameId,
generatedScopes
) {
if (!frame.originalVariables) {
throw new TypeError("(frame.originalVariables: XScopeVariables)");
}
const originalVariables = frame.originalVariables;
const frameBase = originalVariables.frameBase || "";
const inputs = [];
for (let i = 0; i < originalVariables.vars.length; i++) {
const { expr } = originalVariables.vars[i];
const expression = expr
? expr.replace(expressionRegex, frameBase)
: "void 0";
inputs[i] = expression;
}
const results = await client.evaluateExpressions(inputs, {
frameId,
});
const variables = {};
for (let i = 0; i < originalVariables.vars.length; i++) {
const { name } = originalVariables.vars[i];
variables[name] = { value: results[i].result };
}
const bindings = {
arguments: [],
variables,
};
const { actor } = await generatedScopes;
const scope = {
type: "function",
scopeKind: "",
actor,
bindings,
parent: null,
function: null,
block: null,
};
return {
mappings: {},
scope,
};
}
export function toggleMapScopes() {
return async function ({ dispatch, getState }) {
if (isMapScopesEnabled(getState())) {
dispatch({ type: "TOGGLE_MAP_SCOPES", mapScopes: false });
return;
}
dispatch({ type: "TOGGLE_MAP_SCOPES", mapScopes: true });
const cx = getThreadContext(getState());
if (getSelectedOriginalScope(getState(), cx.thread)) {
return;
}
const scopes = getSelectedGeneratedScope(getState(), cx.thread);
const frame = getSelectedFrame(getState(), cx.thread);
if (!scopes || !frame) {
return;
}
dispatch(mapScopes(cx, Promise.resolve(scopes.scope), frame));
};
}
export function mapScopes(cx, scopes, frame) {
return async function (thunkArgs) {
const { dispatch, client, getState } = thunkArgs;
assert(cx.thread == frame.thread, "Thread mismatch");
await dispatch({
type: "MAP_SCOPES",
cx,
thread: cx.thread,
frame,
[PROMISE]: (async function () {
if (frame.isOriginal && frame.originalVariables) {
const frameId = getSelectedFrameId(getState(), cx.thread);
return buildOriginalScopes(frame, client, cx, frameId, scopes);
}
return dispatch(getMappedScopes(cx, scopes, frame));
})(),
});
};
}
export function getMappedScopes(cx, scopes, frame) {
return async function (thunkArgs) {
const { getState, dispatch } = thunkArgs;
const generatedSource = frame.generatedLocation.source;
const source = frame.location.source;
if (
!isMapScopesEnabled(getState()) ||
!source ||
!generatedSource ||
generatedSource.isWasm ||
source.isPrettyPrinted ||
isGenerated(source)
) {
return null;
}
// Load source text for the original source
await dispatch(loadOriginalSourceText({ cx, source }));
const generatedSourceActor = getFirstSourceActorForGeneratedSource(
getState(),
generatedSource.id
);
// Also load source text for its corresponding generated source
await dispatch(
loadGeneratedSourceText({
cx,
sourceActor: generatedSourceActor,
})
);
try {
// load original source text content
const content = getSettledSourceTextContent(getState(), frame.location);
return await buildMappedScopes(
source,
content && isFulfilled(content)
? content.value
: { type: "text", value: "", contentType: undefined },
frame,
await scopes,
thunkArgs
);
} catch (e) {
log(e);
return null;
}
};
}
export function getMappedScopesForLocation(location) {
return async function (thunkArgs) {
const { dispatch, getState } = thunkArgs;
const cx = getThreadContext(getState());
const mappedLocation = await getMappedLocation(location, thunkArgs);
return dispatch(getMappedScopes(cx, null, mappedLocation));
};
}
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