Class designating that some type has an SDoc representation

When we print a binder, we often want to print its type too. The OutputableBndr class encapsulates this idea.

Returns the seperated concatenation of the pretty printed things.

Returns the comma-seperated concatenation of the pretty printed things.

Returns the comma-seperated concatenation of the quoted pretty printed things.

 [x,y,z]  ==>  `x', `y', `z'

Indent SDoc some specified amount

Join two SDoc together horizontally without a gap

Join two SDoc together horizontally with a gap between them

Concatenate SDoc horizontally

Concatenate SDoc horizontally with a space between each one

Join two SDoc together vertically; if there is no vertical overlap it dovetails the two onto one line

Join two SDoc together vertically

Concatenate SDoc vertically with dovetailing

Separate: is either like hsep or like vcat, depending on what fits

Catenate: is either like hcat or like vcat, depending on what fits

A paragraph-fill combinator. It's much like sep, only it keeps fitting things on one line until it can't fit any more.

This behaves like fsep, but it uses <> for horizontal conposition rather than <+>

Converts an integer to a verbal index:

 speakNth 1 = text "first"
 speakNth 5 = text "fifth"
 speakNth 21 = text "21st"

Converts a strictly positive integer into a number of times:

 speakNTimes 1 = text "once"
 speakNTimes 2 = text "twice"
 speakNTimes 4 = text "4 times"

Converts an integer to a verbal multiplicity:

 speakN 0 = text "none"
 speakN 5 = text "five"
 speakN 10 = text "10"

Converts an integer and object description to a statement about the multiplicity of those objects:

 speakNOf 0 (text "melon") = text "no melons"
 speakNOf 1 (text "melon") = text "one melon"
 speakNOf 3 (text "melon") = text "three melons"

Determines the pluralisation suffix appropriate for the length of a list:

 plural [] = char 's'
 plural ["Hello"] = empty
 plural ["Hello", "World"] = char 's'

Special combinator for showing character literals.

Special combinator for showing string literals.

BindingSite is used to tell the thing that prints binder what language construct is binding the identifier. This can be used to decide how much info to print.

Style for printing error messages

Throw an exception saying bug in GHC

Throw an exceptio saying this isn't finished yet

Panic with an assertation failure, recording the given file and line number. Should typically be accessed with the ASSERT family of macros

Specialization of pprPanic that can be safely used with FastInt

Throw an exception saying bug in pgm being compiled (used for unusual program errors)

If debug output is on, show some SDoc on the screen

Just warn about an assertion failure, recording the given file and line number. Should typically be accessed with the WARN macros

When called, trace outputs the string in its first argument, before returning the second argument as its result. The trace function is not referentially transparent, and should only be used for debugging, or for monitoring execution. Some implementations of trace may decorate the string that's output to indicate that you're tracing. The function is implemented on top of putTraceMsg.

Panics and asserts.

Panic while pretending to return an unboxed int. You can't use the regular panic functions in expressions producing unboxed ints because they have the wrong kind.

Throw an failed assertion exception for a given filename and line number.