1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
/* 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/>. */
// @flow
import {
getSelectedSource,
getBreakpointPositionsForLine,
} from "../reducers/sources";
import { getBreakpointsList } from "../reducers/breakpoints";
import { isGenerated } from "../utils/source";
import type {
Breakpoint,
BreakpointPosition,
PartialPosition,
SourceLocation,
} from "../types";
import type { State } from "../reducers/types";
function getColumn(column, selectedSource): ?number {
if (column) {
return column;
}
return isGenerated(selectedSource) ? undefined : 0;
}
function getLocation(bp, selectedSource): SourceLocation {
return isGenerated(selectedSource)
? bp.generatedLocation || bp.location
: bp.location;
}
function getBreakpointsForSource(state: State, selectedSource): Breakpoint[] {
const breakpoints = getBreakpointsList(state);
return breakpoints.filter(bp => {
const location = getLocation(bp, selectedSource);
return location.sourceId === selectedSource.id;
});
}
type LineColumn = { line: number, column: ?number };
function findBreakpointAtLocation(
breakpoints,
selectedSource,
{ line, column }: LineColumn
): ?Breakpoint {
return breakpoints.find(breakpoint => {
const location = getLocation(breakpoint, selectedSource);
const sameLine = location.line === line;
if (!sameLine) {
return false;
}
if (column === undefined) {
return true;
}
return location.column === getColumn(column, selectedSource);
});
}
// returns the closest active column breakpoint
function findClosestBreakpoint(breakpoints, column) {
if (!breakpoints || breakpoints.length == 0) {
return null;
}
const firstBreakpoint = breakpoints[0];
return breakpoints.reduce((closestBp, currentBp) => {
const currentColumn = currentBp.generatedLocation.column;
const closestColumn = closestBp.generatedLocation.column;
// check that breakpoint has a column.
if (column && currentColumn && closestColumn) {
const currentDistance = Math.abs(currentColumn - column);
const closestDistance = Math.abs(closestColumn - column);
return currentDistance < closestDistance ? currentBp : closestBp;
}
return closestBp;
}, firstBreakpoint);
}
/*
* Finds a breakpoint at a location (line, column) of the
* selected source.
*
* This is useful for finding a breakpoint when the
* user clicks in the gutter or on a token.
*/
export function getBreakpointAtLocation(
state: State,
location: LineColumn
): ?Breakpoint {
const selectedSource = getSelectedSource(state);
if (!selectedSource) {
throw new Error("no selectedSource");
}
const breakpoints = getBreakpointsForSource(state, selectedSource);
return findBreakpointAtLocation(breakpoints, selectedSource, location);
}
export function getBreakpointsAtLine(state: State, line: number): Breakpoint[] {
const selectedSource = getSelectedSource(state);
if (!selectedSource) {
throw new Error("no selectedSource");
}
const breakpoints = getBreakpointsForSource(state, selectedSource);
return breakpoints.filter(
breakpoint => getLocation(breakpoint, selectedSource).line === line
);
}
export function getClosestBreakpoint(
state: State,
position: PartialPosition
): ?Breakpoint {
const columnBreakpoints = getBreakpointsAtLine(state, position.line);
const breakpoint = findClosestBreakpoint(columnBreakpoints, position.column);
return (breakpoint: any);
}
export function getClosestBreakpointPosition(
state: State,
position: PartialPosition
): ?BreakpointPosition {
const selectedSource = getSelectedSource(state);
if (!selectedSource) {
throw new Error("no selectedSource");
}
const columnBreakpoints = getBreakpointPositionsForLine(
state,
selectedSource.id,
position.line
);
return findClosestBreakpoint(columnBreakpoints, position.column);
}
|
