82 lines
3.7 KiB
Factor
82 lines
3.7 KiB
Factor
USING: help.markup help.syntax vocabs.loader io.pathnames strings
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definitions quotations compiler.units ;
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IN: source-files
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ARTICLE: "source-files" "Source files"
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"Words in the " { $vocab-link "source-files" } " vocabulary are used to keep track of loaded source files. This is used to implement " { $link "tools.vocabs" } "."
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$nl
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"The source file database:"
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{ $subsection source-files }
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"The class of source files:"
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{ $subsection source-file }
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"Words intended for the parser:"
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{ $subsection record-checksum }
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{ $subsection record-form }
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{ $subsection xref-source }
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{ $subsection unxref-source }
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"Removing a source file from the database:"
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{ $subsection forget-source }
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"Updating the database:"
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{ $subsection reset-checksums }
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"The " { $link pathname } " class implements the definition protocol by working with the corresponding source file; see " { $link "definitions" } "." ;
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ABOUT: "source-files"
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HELP: source-files
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{ $var-description "An assoc mapping pathname strings to " { $link source-file } " instances, representing loaded source files." } ;
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HELP: source-file
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{ $values { "path" "a pathname string" } { "source-file" source-file } }
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{ $description "Outputs the source file associated to a path name, creating the source file first if it doesn't exist. Source files are retained in the " { $link source-files } " variable." }
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{ $class-description "Instances retain information about loaded source files, and have the following slots:"
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{ $list
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{ { $snippet "path" } " - a pathname string." }
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{ { $snippet "checksum" } " - the CRC32 checksum of the source file's contents at the time it was most recently loaded." }
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{ { $snippet "uses" } " - an assoc whose keys are words referenced from this source file's top level form." }
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{ { $snippet "definitions" } " - a pair of assocs, containing definitions and classes defined in this source file, respectively" }
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}
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} ;
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HELP: record-checksum
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{ $values { "source-file" source-file } { "lines" "a sequence of strings" } }
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{ $description "Records the CRC32 checksm of the source file's contents." }
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$low-level-note ;
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HELP: xref-source
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{ $values { "source-file" source-file } }
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{ $description "Adds the source file to the " { $link crossref } " graph enabling words to find source files which reference them in their top level forms." }
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$low-level-note ;
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HELP: unxref-source
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{ $values { "source-file" source-file } }
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{ $description "Removes the source file from the " { $link crossref } " graph." }
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$low-level-note ;
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HELP: xref-sources
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{ $description "Adds all loaded source files to the " { $link crossref } " graph. This is done during bootstrap." }
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$low-level-note ;
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HELP: record-form
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{ $values { "quot" quotation } { "source-file" source-file } }
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{ $description "Records usage information for a source file's top level form." }
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$low-level-note ;
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HELP: reset-checksums
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{ $description "Resets recorded modification times and CRC32 checksums for all loaded source files, creating a checkpoint for " { $link "tools.vocabs" } "." } ;
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HELP: forget-source
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{ $values { "path" "a pathname string" } }
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{ $description "Forgets all information known about a source file." }
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{ $notes "This word must be called from inside " { $link with-compilation-unit } "." } ;
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HELP: record-definitions
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{ $values { "file" source-file } }
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{ $description "Records that all " { $link new-definitions } " were defined in " { $snippet "file" } "." } ;
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HELP: rollback-source-file
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{ $values { "file" source-file } }
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{ $description "Records information to the source file after an incomplete parse which ended with an error." } ;
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HELP: file
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{ $var-description "Stores the " { $link source-file } " being parsed. The " { $snippet "path" } " of this object comes from the input parameter to " { $link with-source-file } "." } ;
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